chore: switch to multiline function definition in resolver.go

Merge pull request #109 from moul/moul-patch-1
Update renovate.json
2018-12-09 11:37:36 +01:00 · 2018-12-07 14:53:50 +01:00 · 2018-12-07 14:49:50 +01:00 · 2018-11-25 09:46:57 +01:00 · 2018-11-25 09:43:28 +01:00 · 2018-11-25 09:41:09 +01:00
494 changed files with 4491 additions and 407222 deletions
--- a/.assets/client.gif
+++ b/.assets/client.gif
--- a/.assets/cluster-mysql.dot
+++ b/.assets/cluster-mysql.dot
@@ -0,0 +1,30 @@
+graph {
+  rankdir=LR;
+  subgraph cluster_sshportal {
+    label="sshportal cluster";
+    edge[style=dashed,color=grey,constraint=false];
+    sshportal1; sshportal2; sshportal3; sshportalN;
+    sshportal1 -- MySQL;
+    sshportal2 -- MySQL;
+    sshportal3 -- MySQL;
+    sshportalN -- MySQL;
+  }
+
+  subgraph cluster_hosts {
+    label="hosts";
+    host1; host2; host3; hostN;
+  }
+
+  subgraph cluster_users {
+    label="users";
+    user1; user2; user3; userN;
+  }
+
+  {
+    user1 -- sshportal1 -- host1[color=red,penwidth=3.0];
+    user2 -- sshportal2 -- host2[color=green,penwidth=3.0];
+    user3 -- sshportal3 -- host3[color=blue,penwidth=3.0];
+    user3 -- sshportal2 -- host1[color=purple,penwidth=3.0];
+    userN -- sshportalN -- hostN[style=dotted];
+  }
+}
--- a/.assets/cluster-mysql.svg
+++ b/.assets/cluster-mysql.svg
@@ -0,0 +1,176 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.40.1 (20161225.0304)
+ -->
+<!-- Title: %3 Pages: 1 -->
+<svg width="334pt" height="314pt"
+ viewBox="0.00 0.00 333.78 314.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 310)">
+<title>%3</title>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-310 329.7751,-310 329.7751,4 -4,4"/>
+<g id="clust1" class="cluster">
+<title>cluster_sshportal</title>
+<polygon fill="none" stroke="#000000" points="106.4533,-8 106.4533,-298 219.3045,-298 219.3045,-8 106.4533,-8"/>
+<text text-anchor="middle" x="162.8789" y="-282.8" font-family="Times,serif" font-size="14.00" fill="#000000">sshportal cluster</text>
+</g>
+<g id="clust2" class="cluster">
+<title>cluster_hosts</title>
+<polygon fill="none" stroke="#000000" points="239.3045,-62 239.3045,-298 317.7751,-298 317.7751,-62 239.3045,-62"/>
+<text text-anchor="middle" x="278.5398" y="-282.8" font-family="Times,serif" font-size="14.00" fill="#000000">hosts</text>
+</g>
+<g id="clust3" class="cluster">
+<title>cluster_users</title>
+<polygon fill="none" stroke="#000000" points="8,-62 8,-298 86.4533,-298 86.4533,-62 8,-62"/>
+<text text-anchor="middle" x="47.2266" y="-282.8" font-family="Times,serif" font-size="14.00" fill="#000000">users</text>
+</g>
+<!-- sshportal1 -->
+<g id="node1" class="node">
+<title>sshportal1</title>
+<ellipse fill="none" stroke="#000000" cx="162.8789" cy="-250" rx="46.4218" ry="18"/>
+<text text-anchor="middle" x="162.8789" y="-245.8" font-family="Times,serif" font-size="14.00" fill="#000000">sshportal1</text>
+</g>
+<!-- MySQL -->
+<g id="node5" class="node">
+<title>MySQL</title>
+<ellipse fill="none" stroke="#000000" cx="162.8789" cy="-34" rx="39.1973" ry="18"/>
+<text text-anchor="middle" x="162.8789" y="-29.8" font-family="Times,serif" font-size="14.00" fill="#000000">MySQL</text>
+</g>
+<!-- sshportal1&#45;&#45;MySQL -->
+<g id="edge1" class="edge">
+<title>sshportal1&#45;&#45;MySQL</title>
+<path fill="none" stroke="#c0c0c0" stroke-dasharray="5,2" d="M124.8869,-239.5365C113.0929,-234.0967 101.7898,-225.9823 96.4533,-214 83.4344,-184.768 83.4344,-99.232 96.4533,-70 102.3234,-56.8194 115.4132,-48.3192 128.4343,-42.9106"/>
+</g>
+<!-- host1 -->
+<g id="node6" class="node">
+<title>host1</title>
+<ellipse fill="none" stroke="#000000" cx="278.5398" cy="-250" rx="29.0429" ry="18"/>
+<text text-anchor="middle" x="278.5398" y="-245.8" font-family="Times,serif" font-size="14.00" fill="#000000">host1</text>
+</g>
+<!-- sshportal1&#45;&#45;host1 -->
+<g id="edge6" class="edge">
+<title>sshportal1&#45;&#45;host1</title>
+<path fill="none" stroke="#ff0000" stroke-width="3" d="M209.5892,-250C222.8807,-250 236.9866,-250 248.9537,-250"/>
+</g>
+<!-- sshportal2 -->
+<g id="node2" class="node">
+<title>sshportal2</title>
+<ellipse fill="none" stroke="#000000" cx="162.8789" cy="-196" rx="46.4218" ry="18"/>
+<text text-anchor="middle" x="162.8789" y="-191.8" font-family="Times,serif" font-size="14.00" fill="#000000">sshportal2</text>
+</g>
+<!-- sshportal2&#45;&#45;MySQL -->
+<g id="edge2" class="edge">
+<title>sshportal2&#45;&#45;MySQL</title>
+<path fill="none" stroke="#c0c0c0" stroke-dasharray="5,2" d="M124.8869,-185.5365C113.0929,-180.0967 101.7898,-171.9823 96.4533,-160 88.3165,-141.73 88.3165,-88.27 96.4533,-70 102.3234,-56.8194 115.4132,-48.3192 128.4343,-42.9106"/>
+</g>
+<!-- sshportal2&#45;&#45;host1 -->
+<g id="edge12" class="edge">
+<title>sshportal2&#45;&#45;host1</title>
+<path fill="none" stroke="#a020f0" stroke-width="3" d="M192.6645,-209.9063C212.0749,-218.9687 237.0472,-230.6278 255.0535,-239.0347"/>
+</g>
+<!-- host2 -->
+<g id="node7" class="node">
+<title>host2</title>
+<ellipse fill="none" stroke="#000000" cx="278.5398" cy="-196" rx="29.0429" ry="18"/>
+<text text-anchor="middle" x="278.5398" y="-191.8" font-family="Times,serif" font-size="14.00" fill="#000000">host2</text>
+</g>
+<!-- sshportal2&#45;&#45;host2 -->
+<g id="edge8" class="edge">
+<title>sshportal2&#45;&#45;host2</title>
+<path fill="none" stroke="#00ff00" stroke-width="3" d="M209.5892,-196C222.8807,-196 236.9866,-196 248.9537,-196"/>
+</g>
+<!-- sshportal3 -->
+<g id="node3" class="node">
+<title>sshportal3</title>
+<ellipse fill="none" stroke="#000000" cx="162.8789" cy="-142" rx="46.4218" ry="18"/>
+<text text-anchor="middle" x="162.8789" y="-137.8" font-family="Times,serif" font-size="14.00" fill="#000000">sshportal3</text>
+</g>
+<!-- sshportal3&#45;&#45;MySQL -->
+<g id="edge3" class="edge">
+<title>sshportal3&#45;&#45;MySQL</title>
+<path fill="none" stroke="#c0c0c0" stroke-dasharray="5,2" d="M124.8869,-131.5365C113.0929,-126.0967 101.7898,-117.9823 96.4533,-106 89.9439,-91.384 89.9439,-84.616 96.4533,-70 102.3234,-56.8194 115.4132,-48.3192 128.4343,-42.9106"/>
+</g>
+<!-- host3 -->
+<g id="node8" class="node">
+<title>host3</title>
+<ellipse fill="none" stroke="#000000" cx="278.5398" cy="-142" rx="29.0429" ry="18"/>
+<text text-anchor="middle" x="278.5398" y="-137.8" font-family="Times,serif" font-size="14.00" fill="#000000">host3</text>
+</g>
+<!-- sshportal3&#45;&#45;host3 -->
+<g id="edge10" class="edge">
+<title>sshportal3&#45;&#45;host3</title>
+<path fill="none" stroke="#0000ff" stroke-width="3" d="M209.5892,-142C222.8807,-142 236.9866,-142 248.9537,-142"/>
+</g>
+<!-- sshportalN -->
+<g id="node4" class="node">
+<title>sshportalN</title>
+<ellipse fill="none" stroke="#000000" cx="162.8789" cy="-88" rx="48.3514" ry="18"/>
+<text text-anchor="middle" x="162.8789" y="-83.8" font-family="Times,serif" font-size="14.00" fill="#000000">sshportalN</text>
+</g>
+<!-- sshportalN&#45;&#45;MySQL -->
+<g id="edge4" class="edge">
+<title>sshportalN&#45;&#45;MySQL</title>
+<path fill="none" stroke="#c0c0c0" stroke-dasharray="5,2" d="M162.8789,-69.7902C162.8789,-63.907 162.8789,-58.0238 162.8789,-52.1406"/>
+</g>
+<!-- hostN -->
+<g id="node9" class="node">
+<title>hostN</title>
+<ellipse fill="none" stroke="#000000" cx="278.5398" cy="-88" rx="31.4723" ry="18"/>
+<text text-anchor="middle" x="278.5398" y="-83.8" font-family="Times,serif" font-size="14.00" fill="#000000">hostN</text>
+</g>
+<!-- sshportalN&#45;&#45;hostN -->
+<g id="edge14" class="edge">
+<title>sshportalN&#45;&#45;hostN</title>
+<path fill="none" stroke="#000000" stroke-dasharray="1,5" d="M211.5943,-88C223.5713,-88 236.0833,-88 247.0054,-88"/>
+</g>
+<!-- user1 -->
+<g id="node10" class="node">
+<title>user1</title>
+<ellipse fill="none" stroke="#000000" cx="47.2266" cy="-250" rx="29.0257" ry="18"/>
+<text text-anchor="middle" x="47.2266" y="-245.8" font-family="Times,serif" font-size="14.00" fill="#000000">user1</text>
+</g>
+<!-- user1&#45;&#45;sshportal1 -->
+<g id="edge5" class="edge">
+<title>user1&#45;&#45;sshportal1</title>
+<path fill="none" stroke="#ff0000" stroke-width="3" d="M76.7098,-250C88.7561,-250 102.9825,-250 116.3672,-250"/>
+</g>
+<!-- user2 -->
+<g id="node11" class="node">
+<title>user2</title>
+<ellipse fill="none" stroke="#000000" cx="47.2266" cy="-196" rx="29.0257" ry="18"/>
+<text text-anchor="middle" x="47.2266" y="-191.8" font-family="Times,serif" font-size="14.00" fill="#000000">user2</text>
+</g>
+<!-- user2&#45;&#45;sshportal2 -->
+<g id="edge7" class="edge">
+<title>user2&#45;&#45;sshportal2</title>
+<path fill="none" stroke="#00ff00" stroke-width="3" d="M76.7098,-196C88.7561,-196 102.9825,-196 116.3672,-196"/>
+</g>
+<!-- user3 -->
+<g id="node12" class="node">
+<title>user3</title>
+<ellipse fill="none" stroke="#000000" cx="47.2266" cy="-142" rx="29.0257" ry="18"/>
+<text text-anchor="middle" x="47.2266" y="-137.8" font-family="Times,serif" font-size="14.00" fill="#000000">user3</text>
+</g>
+<!-- user3&#45;&#45;sshportal2 -->
+<g id="edge11" class="edge">
+<title>user3&#45;&#45;sshportal2</title>
+<path fill="none" stroke="#a020f0" stroke-width="3" d="M70.6306,-152.9277C88.5836,-161.3103 113.4965,-172.9425 132.9075,-182.0059"/>
+</g>
+<!-- user3&#45;&#45;sshportal3 -->
+<g id="edge9" class="edge">
+<title>user3&#45;&#45;sshportal3</title>
+<path fill="none" stroke="#0000ff" stroke-width="3" d="M76.7098,-142C88.7561,-142 102.9825,-142 116.3672,-142"/>
+</g>
+<!-- userN -->
+<g id="node13" class="node">
+<title>userN</title>
+<ellipse fill="none" stroke="#000000" cx="47.2266" cy="-88" rx="31.4549" ry="18"/>
+<text text-anchor="middle" x="47.2266" y="-83.8" font-family="Times,serif" font-size="14.00" fill="#000000">userN</text>
+</g>
+<!-- userN&#45;&#45;sshportalN -->
+<g id="edge13" class="edge">
+<title>userN&#45;&#45;sshportalN</title>
+<path fill="none" stroke="#000000" stroke-dasharray="1,5" d="M78.5238,-88C89.4948,-88 102.0923,-88 114.1488,-88"/>
+</g>
+</g>
+</svg>
--- a/.assets/demo.gif
+++ b/.assets/demo.gif
--- a/.assets/flow-diagram.dot
+++ b/.assets/flow-diagram.dot
@@ -0,0 +1,65 @@
+digraph {
+    rankdir=LR;
+    layout=dot;
+    node[shape=record];
+    
+    start[label="ssh sshportal";color=blue;fontcolor=blue;fontsize=20];
+    
+    subgraph cluster_sshportal {
+        graph[fontsize=20;style=dashed;color=purple;fontcolor=purple];
+        label="sshportal";
+        {
+            node[color=darkorange;fontcolor=darkorange];
+            known_user_key[label="known user key"];
+            unknown_user_key[label="unknown user key"];
+            invite_manager[label="invite manager"];
+            acl_manager[label="ACL manager"];
+        }
+        {
+            node[color=darkgreen;fontcolor=darkgreen];
+            builtin_shell[label="built-in shell"];
+            ssh_proxy[label="SSH proxy"];
+            learn_key[label="learn key"];
+        }
+        err_and_exit[label="error and exit";color=red;fontcolor=red];
+        { rank=same; ssh_proxy; builtin_shell; learn_key; err_and_exit; }
+        { rank=same; known_user_key; unknown_user_key; }
+    }
+    
+    subgraph cluster_hosts {
+        label="your hosts";
+        graph[fontsize=20;style=dashed;color=purple;fontcolor=purple];
+        node[color=blue;fontcolor=blue];
+        
+        host_1[label="root@host1"];
+        host_2[label="user@host2:2222"];
+        host_3[label="root@host3:1234"];
+    }
+    
+    {
+        edge[color=blue];
+        start -> known_user_key;
+        start -> unknown_user_key;
+        ssh_proxy -> host_1;
+        ssh_proxy -> host_2;
+        ssh_proxy -> host_3;
+    }
+    {
+        edge[color=darkgreen;fontcolor=darkgreen];
+        known_user_key -> builtin_shell[label="user=admin"];
+        acl_manager -> ssh_proxy[label="authorized"];
+        invite_manager -> learn_key[label="valid token"];
+    }
+    {
+        edge[color=darkorange;fontcolor=darkorange];
+        known_user_key -> acl_manager[label="user matches an existing host"];
+        unknown_user_key -> invite_manager[headlabel="user=invite:<token>"];
+    }
+    {
+        edge[color=red;fontcolor=red];
+        known_user_key -> err_and_exit[label="invalid user"];
+        acl_manager -> err_and_exit[label="unauthorized"];
+        unknown_user_key -> err_and_exit[label="any other user"];
+        invite_manager -> err_and_exit[label="invalid token"];
+    }
+}
--- a/.assets/flow-diagram.svg
+++ b/.assets/flow-diagram.svg
@@ -0,0 +1,188 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.40.1 (20161225.0304)
+ -->
+<!-- Title: %3 Pages: 1 -->
+<svg width="1026pt" height="312pt"
+ viewBox="0.00 0.00 1026.42 312.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 308)">
+<title>%3</title>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-308 1022.4219,-308 1022.4219,4 -4,4"/>
+<g id="clust1" class="cluster">
+<title>cluster_sshportal</title>
+<polygon fill="none" stroke="#a020f0" stroke-dasharray="5,2" points="147.7832,-8 147.7832,-296 858.9775,-296 858.9775,-8 147.7832,-8"/>
+<text text-anchor="middle" x="503.3804" y="-276" font-family="Times,serif" font-size="20.00" fill="#a020f0">sshportal</text>
+</g>
+<g id="clust6" class="cluster">
+<title>cluster_hosts</title>
+<polygon fill="none" stroke="#a020f0" stroke-dasharray="5,2" points="879.9775,-104 879.9775,-296 1010.4219,-296 1010.4219,-104 879.9775,-104"/>
+<text text-anchor="middle" x="945.1997" y="-276" font-family="Times,serif" font-size="20.00" fill="#a020f0">your hosts</text>
+</g>
+<!-- start -->
+<g id="node1" class="node">
+<title>start</title>
+<polygon fill="none" stroke="#0000ff" points="0,-118 0,-154 118.7832,-154 118.7832,-118 0,-118"/>
+<text text-anchor="middle" x="59.3916" y="-130" font-family="Times,serif" font-size="20.00" fill="#0000ff">ssh sshportal</text>
+</g>
+<!-- known_user_key -->
+<g id="node2" class="node">
+<title>known_user_key</title>
+<polygon fill="none" stroke="#ff8c00" points="162.7832,-157 162.7832,-193 267.4316,-193 267.4316,-157 162.7832,-157"/>
+<text text-anchor="middle" x="215.1074" y="-170.8" font-family="Times,serif" font-size="14.00" fill="#ff8c00">known user key</text>
+</g>
+<!-- start&#45;&gt;known_user_key -->
+<g id="edge1" class="edge">
+<title>start&#45;&gt;known_user_key</title>
+<path fill="none" stroke="#0000ff" d="M119.1501,-150.9669C130.1162,-153.7134 141.5894,-156.587 152.6326,-159.3528"/>
+<polygon fill="#0000ff" stroke="#0000ff" points="152.0758,-162.8214 162.6266,-161.8558 153.7765,-156.0311 152.0758,-162.8214"/>
+</g>
+<!-- unknown_user_key -->
+<g id="node3" class="node">
+<title>unknown_user_key</title>
+<polygon fill="none" stroke="#ff8c00" points="155.7832,-72 155.7832,-108 274.4316,-108 274.4316,-72 155.7832,-72"/>
+<text text-anchor="middle" x="215.1074" y="-85.8" font-family="Times,serif" font-size="14.00" fill="#ff8c00">unknown user key</text>
+</g>
+<!-- start&#45;&gt;unknown_user_key -->
+<g id="edge2" class="edge">
+<title>start&#45;&gt;unknown_user_key</title>
+<path fill="none" stroke="#0000ff" d="M119.1501,-118.3468C127.968,-115.7419 137.1138,-113.0401 146.1003,-110.3854"/>
+<polygon fill="#0000ff" stroke="#0000ff" points="147.1673,-113.7198 155.766,-107.5301 145.1841,-107.0066 147.1673,-113.7198"/>
+</g>
+<!-- acl_manager -->
+<g id="node5" class="node">
+<title>acl_manager</title>
+<polygon fill="none" stroke="#ff8c00" points="514.7056,-173 514.7056,-209 609.8862,-209 609.8862,-173 514.7056,-173"/>
+<text text-anchor="middle" x="562.2959" y="-186.8" font-family="Times,serif" font-size="14.00" fill="#ff8c00">ACL manager</text>
+</g>
+<!-- known_user_key&#45;&gt;acl_manager -->
+<g id="edge9" class="edge">
+<title>known_user_key&#45;&gt;acl_manager</title>
+<path fill="none" stroke="#ff8c00" d="M267.461,-177.4127C331.1153,-180.3462 438.21,-185.2816 504.3082,-188.3277"/>
+<polygon fill="#ff8c00" stroke="#ff8c00" points="504.401,-191.8356 514.5516,-188.7997 504.7233,-184.843 504.401,-191.8356"/>
+<text text-anchor="middle" x="393.4697" y="-188.8" font-family="Times,serif" font-size="14.00" fill="#ff8c00">user matches an existing host</text>
+</g>
+<!-- builtin_shell -->
+<g id="node6" class="node">
+<title>builtin_shell</title>
+<polygon fill="none" stroke="#006400" points="761.6929,-223 761.6929,-259 848.855,-259 848.855,-223 761.6929,-223"/>
+<text text-anchor="middle" x="805.2739" y="-236.8" font-family="Times,serif" font-size="14.00" fill="#006400">built&#45;in shell</text>
+</g>
+<!-- known_user_key&#45;&gt;builtin_shell -->
+<g id="edge6" class="edge">
+<title>known_user_key&#45;&gt;builtin_shell</title>
+<path fill="none" stroke="#006400" d="M267.592,-193.0548C281.6792,-197.2785 297.0081,-201.3215 311.4316,-204 469.5409,-233.361 660.2348,-239.5693 751.4965,-240.7835"/>
+<polygon fill="#006400" stroke="#006400" points="751.5568,-244.2844 761.5974,-240.9027 751.6394,-237.2848 751.5568,-244.2844"/>
+<text text-anchor="middle" x="562.2959" y="-238.8" font-family="Times,serif" font-size="14.00" fill="#006400">user=admin</text>
+</g>
+<!-- err_and_exit -->
+<g id="node9" class="node">
+<title>err_and_exit</title>
+<polygon fill="none" stroke="#ff0000" points="759.5703,-106 759.5703,-142 850.9775,-142 850.9775,-106 759.5703,-106"/>
+<text text-anchor="middle" x="805.2739" y="-119.8" font-family="Times,serif" font-size="14.00" fill="#ff0000">error and exit</text>
+</g>
+<!-- known_user_key&#45;&gt;err_and_exit -->
+<g id="edge11" class="edge">
+<title>known_user_key&#45;&gt;err_and_exit</title>
+<path fill="none" stroke="#ff0000" d="M267.4808,-170.4741C378.1362,-160.9117 634.8943,-138.7236 748.9418,-128.868"/>
+<polygon fill="#ff0000" stroke="#ff0000" points="749.5354,-132.3298 759.1969,-127.9818 748.9327,-125.3558 749.5354,-132.3298"/>
+<text text-anchor="middle" x="562.2959" y="-151.8" font-family="Times,serif" font-size="14.00" fill="#ff0000">invalid user</text>
+</g>
+<!-- invite_manager -->
+<g id="node4" class="node">
+<title>invite_manager</title>
+<polygon fill="none" stroke="#ff8c00" points="512.5078,-17 512.5078,-53 612.084,-53 612.084,-17 512.5078,-17"/>
+<text text-anchor="middle" x="562.2959" y="-30.8" font-family="Times,serif" font-size="14.00" fill="#ff8c00">invite manager</text>
+</g>
+<!-- unknown_user_key&#45;&gt;invite_manager -->
+<g id="edge10" class="edge">
+<title>unknown_user_key&#45;&gt;invite_manager</title>
+<path fill="none" stroke="#ff8c00" d="M274.7912,-80.5452C338.467,-70.4579 438.7527,-54.5711 502.4793,-44.4759"/>
+<polygon fill="#ff8c00" stroke="#ff8c00" points="503.0528,-47.9288 512.382,-42.9071 501.9575,-41.015 503.0528,-47.9288"/>
+<text text-anchor="middle" x="455.4386" y="-31.7071" font-family="Times,serif" font-size="14.00" fill="#ff8c00">user=invite:&lt;token&gt;</text>
+</g>
+<!-- unknown_user_key&#45;&gt;err_and_exit -->
+<g id="edge13" class="edge">
+<title>unknown_user_key&#45;&gt;err_and_exit</title>
+<path fill="none" stroke="#ff0000" d="M274.4978,-89.2935C352.2933,-89.0083 492.8294,-90.6942 612.084,-104 628.7169,-105.8558 632.5001,-108.7473 649.084,-111 682.1267,-115.4884 719.327,-118.6586 749.132,-120.7442"/>
+<polygon fill="#ff0000" stroke="#ff0000" points="749.133,-124.2522 759.347,-121.437 749.6068,-117.2683 749.133,-124.2522"/>
+<text text-anchor="middle" x="562.2959" y="-106.8" font-family="Times,serif" font-size="14.00" fill="#ff0000">any other user</text>
+</g>
+<!-- learn_key -->
+<g id="node8" class="node">
+<title>learn_key</title>
+<polygon fill="none" stroke="#006400" points="771.4272,-17 771.4272,-53 839.1206,-53 839.1206,-17 771.4272,-17"/>
+<text text-anchor="middle" x="805.2739" y="-30.8" font-family="Times,serif" font-size="14.00" fill="#006400">learn key</text>
+</g>
+<!-- invite_manager&#45;&gt;learn_key -->
+<g id="edge8" class="edge">
+<title>invite_manager&#45;&gt;learn_key</title>
+<path fill="none" stroke="#006400" d="M612.3465,-35C656.1463,-35 719.1598,-35 761.1155,-35"/>
+<polygon fill="#006400" stroke="#006400" points="761.3041,-38.5001 771.3041,-35 761.304,-31.5001 761.3041,-38.5001"/>
+<text text-anchor="middle" x="685.8271" y="-37.8" font-family="Times,serif" font-size="14.00" fill="#006400">valid token</text>
+</g>
+<!-- invite_manager&#45;&gt;err_and_exit -->
+<g id="edge14" class="edge">
+<title>invite_manager&#45;&gt;err_and_exit</title>
+<path fill="none" stroke="#ff0000" d="M611.4661,-53.0105C651.6045,-67.7127 708.3017,-88.4802 750.0066,-103.7562"/>
+<polygon fill="#ff0000" stroke="#ff0000" points="748.8708,-107.0676 759.4646,-107.2206 751.2785,-100.4946 748.8708,-107.0676"/>
+<text text-anchor="middle" x="685.8271" y="-95.8" font-family="Times,serif" font-size="14.00" fill="#ff0000">invalid token</text>
+</g>
+<!-- ssh_proxy -->
+<g id="node7" class="node">
+<title>ssh_proxy</title>
+<polygon fill="none" stroke="#006400" points="766.3516,-168 766.3516,-204 844.1963,-204 844.1963,-168 766.3516,-168"/>
+<text text-anchor="middle" x="805.2739" y="-181.8" font-family="Times,serif" font-size="14.00" fill="#006400">SSH proxy</text>
+</g>
+<!-- acl_manager&#45;&gt;ssh_proxy -->
+<g id="edge7" class="edge">
+<title>acl_manager&#45;&gt;ssh_proxy</title>
+<path fill="none" stroke="#006400" d="M610.0008,-192.3563C641.8818,-193.0022 684.7518,-193.37 722.5703,-192 733.3636,-191.609 744.9337,-190.9319 755.8983,-190.1699"/>
+<polygon fill="#006400" stroke="#006400" points="756.4612,-193.6382 766.18,-189.4199 755.9519,-186.6568 756.4612,-193.6382"/>
+<text text-anchor="middle" x="685.8271" y="-194.8" font-family="Times,serif" font-size="14.00" fill="#006400">authorized</text>
+</g>
+<!-- acl_manager&#45;&gt;err_and_exit -->
+<g id="edge12" class="edge">
+<title>acl_manager&#45;&gt;err_and_exit</title>
+<path fill="none" stroke="#ff0000" d="M610.264,-178.009C646.3866,-168.197 697.1155,-154.3556 741.5703,-142 744.1794,-141.2748 746.8478,-140.5307 749.5426,-139.7772"/>
+<polygon fill="#ff0000" stroke="#ff0000" points="750.6733,-143.0952 759.3567,-137.025 748.7831,-136.3552 750.6733,-143.0952"/>
+<text text-anchor="middle" x="685.8271" y="-169.8" font-family="Times,serif" font-size="14.00" fill="#ff0000">unauthorized</text>
+</g>
+<!-- host_1 -->
+<g id="node10" class="node">
+<title>host_1</title>
+<polygon fill="none" stroke="#0000ff" points="904.3086,-223 904.3086,-259 986.0908,-259 986.0908,-223 904.3086,-223"/>
+<text text-anchor="middle" x="945.1997" y="-236.8" font-family="Times,serif" font-size="14.00" fill="#0000ff">root@host1</text>
+</g>
+<!-- ssh_proxy&#45;&gt;host_1 -->
+<g id="edge3" class="edge">
+<title>ssh_proxy&#45;&gt;host_1</title>
+<path fill="none" stroke="#0000ff" d="M844.2511,-201.3206C859.7986,-207.4318 877.9046,-214.5486 894.4551,-221.054"/>
+<polygon fill="#0000ff" stroke="#0000ff" points="893.4017,-224.4006 903.9889,-224.8015 895.9624,-217.8858 893.4017,-224.4006"/>
+</g>
+<!-- host_2 -->
+<g id="node11" class="node">
+<title>host_2</title>
+<polygon fill="none" stroke="#0000ff" points="887.9775,-168 887.9775,-204 1002.4219,-204 1002.4219,-168 887.9775,-168"/>
+<text text-anchor="middle" x="945.1997" y="-181.8" font-family="Times,serif" font-size="14.00" fill="#0000ff">user@host2:2222</text>
+</g>
+<!-- ssh_proxy&#45;&gt;host_2 -->
+<g id="edge4" class="edge">
+<title>ssh_proxy&#45;&gt;host_2</title>
+<path fill="none" stroke="#0000ff" d="M844.2511,-186C854.6959,-186 866.2954,-186 877.8023,-186"/>
+<polygon fill="#0000ff" stroke="#0000ff" points="877.8592,-189.5001 887.8591,-186 877.8591,-182.5001 877.8592,-189.5001"/>
+</g>
+<!-- host_3 -->
+<g id="node12" class="node">
+<title>host_3</title>
+<polygon fill="none" stroke="#0000ff" points="888.3638,-113 888.3638,-149 1002.0356,-149 1002.0356,-113 888.3638,-113"/>
+<text text-anchor="middle" x="945.1997" y="-126.8" font-family="Times,serif" font-size="14.00" fill="#0000ff">root@host3:1234</text>
+</g>
+<!-- ssh_proxy&#45;&gt;host_3 -->
+<g id="edge5" class="edge">
+<title>ssh_proxy&#45;&gt;host_3</title>
+<path fill="none" stroke="#0000ff" d="M844.2511,-170.6794C858.381,-165.1255 874.624,-158.7409 889.8921,-152.7395"/>
+<polygon fill="#0000ff" stroke="#0000ff" points="891.2185,-155.9789 899.245,-149.0632 888.6578,-149.4641 891.2185,-155.9789"/>
+</g>
+</g>
+</svg>
--- a/.assets/overview.dot
+++ b/.assets/overview.dot
@@ -0,0 +1,36 @@
+graph {
+  rankdir=LR;
+  node[shape=box,style=rounded,style=rounded,fillcolor=gray];
+
+
+  subgraph cluster_sshportal {
+      sshportal[penwidth=3.0,color=brown,fontcolor=brown,fontsize=20];
+      shell[label="built-in\nadmin shell",color=orange,fontcolor=orange];
+      db[color=gray,fontcolor=gray,shape=circle];
+      { rank=same; db; sshportal; shell }
+  }
+
+  {
+      node[color="green"];
+      host1; host2; host3; hostN;
+  }
+
+  {
+      node[color="blue"];
+      user1; user2; user3; userN;
+  }
+
+  {
+      edge[penwidth=3.0];
+      user1 -- sshportal -- host1[color=red];
+      user2 -- sshportal -- host2[color=blue];
+      user3 -- sshportal -- host1[color=purple];
+      user2 -- sshportal -- host3[color=green];
+      user2 -- sshportal -- shell[color=orange,constraint=false];
+  }
+
+  userN -- sshportal[style=dotted];
+  sshportal -- hostN[style=dotted];
+  sshportal -- db[style=dotted,color=grey];
+
+}
--- a/.assets/overview.svg
+++ b/.assets/overview.svg
@@ -0,0 +1,149 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.40.1 (20161225.0304)
+ -->
+<!-- Title: %3 Pages: 1 -->
+<svg width="276pt" height="224pt"
+ viewBox="0.00 0.00 276.22 224.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 220)">
+<title>%3</title>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-220 272.2168,-220 272.2168,4 -4,4"/>
+<g id="clust1" class="cluster">
+<title>cluster_sshportal</title>
+<polygon fill="none" stroke="#000000" points="82,-46 82,-208 186.2168,-208 186.2168,-46 82,-46"/>
+</g>
+<!-- sshportal -->
+<g id="node1" class="node">
+<title>sshportal</title>
+<path fill="none" stroke="#a52a2a" stroke-width="3" d="M166.3255,-144C166.3255,-144 101.8913,-144 101.8913,-144 95.8913,-144 89.8913,-138 89.8913,-132 89.8913,-132 89.8913,-120 89.8913,-120 89.8913,-114 95.8913,-108 101.8913,-108 101.8913,-108 166.3255,-108 166.3255,-108 172.3255,-108 178.3255,-114 178.3255,-120 178.3255,-120 178.3255,-132 178.3255,-132 178.3255,-138 172.3255,-144 166.3255,-144"/>
+<text text-anchor="middle" x="134.1084" y="-120" font-family="Times,serif" font-size="20.00" fill="#a52a2a">sshportal</text>
+</g>
+<!-- shell -->
+<g id="node2" class="node">
+<title>shell</title>
+<path fill="none" stroke="#ffa500" d="M162.543,-90C162.543,-90 105.6738,-90 105.6738,-90 99.6738,-90 93.6738,-84 93.6738,-78 93.6738,-78 93.6738,-66 93.6738,-66 93.6738,-60 99.6738,-54 105.6738,-54 105.6738,-54 162.543,-54 162.543,-54 168.543,-54 174.543,-60 174.543,-66 174.543,-66 174.543,-78 174.543,-78 174.543,-84 168.543,-90 162.543,-90"/>
+<text text-anchor="middle" x="134.1084" y="-74.8" font-family="Times,serif" font-size="14.00" fill="#ffa500">built&#45;in</text>
+<text text-anchor="middle" x="134.1084" y="-60.8" font-family="Times,serif" font-size="14.00" fill="#ffa500">admin shell</text>
+</g>
+<!-- sshportal&#45;&#45;shell -->
+<g id="edge10" class="edge">
+<title>sshportal&#45;&#45;shell</title>
+<path fill="none" stroke="#ffa500" stroke-width="3" d="M134.1084,-107.7902C134.1084,-101.907 134.1084,-96.0238 134.1084,-90.1406"/>
+</g>
+<!-- db -->
+<g id="node3" class="node">
+<title>db</title>
+<ellipse fill="none" stroke="#c0c0c0" cx="134.1084" cy="-181" rx="18.9007" ry="18.9007"/>
+<text text-anchor="middle" x="134.1084" y="-176.8" font-family="Times,serif" font-size="14.00" fill="#c0c0c0">db</text>
+</g>
+<!-- sshportal&#45;&#45;db -->
+<g id="edge13" class="edge">
+<title>sshportal&#45;&#45;db</title>
+<path fill="none" stroke="#c0c0c0" stroke-dasharray="1,5" d="M134.1084,-144.0469C134.1084,-150.0133 134.1084,-155.9797 134.1084,-161.946"/>
+</g>
+<!-- host1 -->
+<g id="node4" class="node">
+<title>host1</title>
+<path fill="none" stroke="#00ff00" d="M256.2168,-198C256.2168,-198 226.2168,-198 226.2168,-198 220.2168,-198 214.2168,-192 214.2168,-186 214.2168,-186 214.2168,-174 214.2168,-174 214.2168,-168 220.2168,-162 226.2168,-162 226.2168,-162 256.2168,-162 256.2168,-162 262.2168,-162 268.2168,-168 268.2168,-174 268.2168,-174 268.2168,-186 268.2168,-186 268.2168,-192 262.2168,-198 256.2168,-198"/>
+<text text-anchor="middle" x="241.2168" y="-175.8" font-family="Times,serif" font-size="14.00" fill="#000000">host1</text>
+</g>
+<!-- sshportal&#45;&#45;host1 -->
+<g id="edge2" class="edge">
+<title>sshportal&#45;&#45;host1</title>
+<path fill="none" stroke="#ff0000" stroke-width="3" d="M178.2919,-141.6183C191.4305,-147.98 205.3457,-155.29 216.7405,-161.8863"/>
+</g>
+<!-- sshportal&#45;&#45;host1 -->
+<g id="edge6" class="edge">
+<title>sshportal&#45;&#45;host1</title>
+<path fill="none" stroke="#a020f0" stroke-width="3" d="M158.413,-144.0143C174.9543,-153.6007 196.8661,-164.7159 213.9941,-172.2404"/>
+</g>
+<!-- host2 -->
+<g id="node5" class="node">
+<title>host2</title>
+<path fill="none" stroke="#00ff00" d="M256.2168,-144C256.2168,-144 226.2168,-144 226.2168,-144 220.2168,-144 214.2168,-138 214.2168,-132 214.2168,-132 214.2168,-120 214.2168,-120 214.2168,-114 220.2168,-108 226.2168,-108 226.2168,-108 256.2168,-108 256.2168,-108 262.2168,-108 268.2168,-114 268.2168,-120 268.2168,-120 268.2168,-132 268.2168,-132 268.2168,-138 262.2168,-144 256.2168,-144"/>
+<text text-anchor="middle" x="241.2168" y="-121.8" font-family="Times,serif" font-size="14.00" fill="#000000">host2</text>
+</g>
+<!-- sshportal&#45;&#45;host2 -->
+<g id="edge4" class="edge">
+<title>sshportal&#45;&#45;host2</title>
+<path fill="none" stroke="#0000ff" stroke-width="3" d="M178.2919,-126C190.3932,-126 203.1534,-126 213.9962,-126"/>
+</g>
+<!-- host3 -->
+<g id="node6" class="node">
+<title>host3</title>
+<path fill="none" stroke="#00ff00" d="M256.2168,-90C256.2168,-90 226.2168,-90 226.2168,-90 220.2168,-90 214.2168,-84 214.2168,-78 214.2168,-78 214.2168,-66 214.2168,-66 214.2168,-60 220.2168,-54 226.2168,-54 226.2168,-54 256.2168,-54 256.2168,-54 262.2168,-54 268.2168,-60 268.2168,-66 268.2168,-66 268.2168,-78 268.2168,-78 268.2168,-84 262.2168,-90 256.2168,-90"/>
+<text text-anchor="middle" x="241.2168" y="-67.8" font-family="Times,serif" font-size="14.00" fill="#000000">host3</text>
+</g>
+<!-- sshportal&#45;&#45;host3 -->
+<g id="edge8" class="edge">
+<title>sshportal&#45;&#45;host3</title>
+<path fill="none" stroke="#00ff00" stroke-width="3" d="M170.0719,-107.8686C184.4145,-100.6376 200.6507,-92.4519 213.9876,-85.728"/>
+</g>
+<!-- hostN -->
+<g id="node7" class="node">
+<title>hostN</title>
+<path fill="none" stroke="#00ff00" d="M256.2168,-36C256.2168,-36 226.2168,-36 226.2168,-36 220.2168,-36 214.2168,-30 214.2168,-24 214.2168,-24 214.2168,-12 214.2168,-12 214.2168,-6 220.2168,0 226.2168,0 226.2168,0 256.2168,0 256.2168,0 262.2168,0 268.2168,-6 268.2168,-12 268.2168,-12 268.2168,-24 268.2168,-24 268.2168,-30 262.2168,-36 256.2168,-36"/>
+<text text-anchor="middle" x="241.2168" y="-13.8" font-family="Times,serif" font-size="14.00" fill="#000000">hostN</text>
+</g>
+<!-- sshportal&#45;&#45;hostN -->
+<g id="edge12" class="edge">
+<title>sshportal&#45;&#45;hostN</title>
+<path fill="none" stroke="#000000" stroke-dasharray="1,5" d="M175.0827,-107.9914C179.0963,-105.3082 182.9022,-102.3137 186.2168,-99 205.3358,-79.8865 198.2486,-66.8147 214.2168,-45 216.4095,-42.0045 218.9349,-39.0275 221.5425,-36.2043"/>
+</g>
+<!-- user1 -->
+<g id="node8" class="node">
+<title>user1</title>
+<path fill="none" stroke="#0000ff" d="M42,-198C42,-198 12,-198 12,-198 6,-198 0,-192 0,-186 0,-186 0,-174 0,-174 0,-168 6,-162 12,-162 12,-162 42,-162 42,-162 48,-162 54,-168 54,-174 54,-174 54,-186 54,-186 54,-192 48,-198 42,-198"/>
+<text text-anchor="middle" x="27" y="-175.8" font-family="Times,serif" font-size="14.00" fill="#000000">user1</text>
+</g>
+<!-- user1&#45;&#45;sshportal -->
+<g id="edge1" class="edge">
+<title>user1&#45;&#45;sshportal</title>
+<path fill="none" stroke="#ff0000" stroke-width="3" d="M54.028,-166.3735C67.4141,-159.6248 83.7582,-151.3846 98.1822,-144.1126"/>
+</g>
+<!-- user2 -->
+<g id="node9" class="node">
+<title>user2</title>
+<path fill="none" stroke="#0000ff" d="M42,-144C42,-144 12,-144 12,-144 6,-144 0,-138 0,-132 0,-132 0,-120 0,-120 0,-114 6,-108 12,-108 12,-108 42,-108 42,-108 48,-108 54,-114 54,-120 54,-120 54,-132 54,-132 54,-138 48,-144 42,-144"/>
+<text text-anchor="middle" x="27" y="-121.8" font-family="Times,serif" font-size="14.00" fill="#000000">user2</text>
+</g>
+<!-- user2&#45;&#45;sshportal -->
+<g id="edge3" class="edge">
+<title>user2&#45;&#45;sshportal</title>
+<path fill="none" stroke="#0000ff" stroke-width="3" d="M54.028,-114.0952C64.8112,-112.6824 77.514,-112.208 89.5863,-112.6721"/>
+</g>
+<!-- user2&#45;&#45;sshportal -->
+<g id="edge7" class="edge">
+<title>user2&#45;&#45;sshportal</title>
+<path fill="none" stroke="#00ff00" stroke-width="3" d="M54.028,-126C64.8112,-126 77.514,-126 89.5863,-126"/>
+</g>
+<!-- user2&#45;&#45;sshportal -->
+<g id="edge9" class="edge">
+<title>user2&#45;&#45;sshportal</title>
+<path fill="none" stroke="#ffa500" stroke-width="3" d="M54.028,-137.9048C64.8112,-139.3176 77.514,-139.792 89.5863,-139.3279"/>
+</g>
+<!-- user3 -->
+<g id="node10" class="node">
+<title>user3</title>
+<path fill="none" stroke="#0000ff" d="M42,-90C42,-90 12,-90 12,-90 6,-90 0,-84 0,-78 0,-78 0,-66 0,-66 0,-60 6,-54 12,-54 12,-54 42,-54 42,-54 48,-54 54,-60 54,-66 54,-66 54,-78 54,-78 54,-84 48,-90 42,-90"/>
+<text text-anchor="middle" x="27" y="-67.8" font-family="Times,serif" font-size="14.00" fill="#000000">user3</text>
+</g>
+<!-- user3&#45;&#45;sshportal -->
+<g id="edge5" class="edge">
+<title>user3&#45;&#45;sshportal</title>
+<path fill="none" stroke="#a020f0" stroke-width="3" d="M54.028,-85.6265C67.4141,-92.3752 83.7582,-100.6154 98.1822,-107.8874"/>
+</g>
+<!-- userN -->
+<g id="node11" class="node">
+<title>userN</title>
+<path fill="none" stroke="#0000ff" d="M42,-36C42,-36 12,-36 12,-36 6,-36 0,-30 0,-24 0,-24 0,-12 0,-12 0,-6 6,0 12,0 12,0 42,0 42,0 48,0 54,-6 54,-12 54,-12 54,-24 54,-24 54,-30 48,-36 42,-36"/>
+<text text-anchor="middle" x="27" y="-13.8" font-family="Times,serif" font-size="14.00" fill="#000000">userN</text>
+</g>
+<!-- userN&#45;&#45;sshportal -->
+<g id="edge11" class="edge">
+<title>userN&#45;&#45;sshportal</title>
+<path fill="none" stroke="#000000" stroke-dasharray="1,5" d="M46.6743,-36.2043C49.2819,-39.0275 51.8073,-42.0045 54,-45 69.9682,-66.8147 62.881,-79.8865 82,-99 85.3146,-102.3137 89.1205,-105.3082 93.1341,-107.9914"/>
+</g>
+</g>
+</svg>
--- a/.assets/server.gif
+++ b/.assets/server.gif
--- a/.assets/sql-schema.svg
+++ b/.assets/sql-schema.svg
@@ -0,0 +1,390 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.40.1 (20161225.0304)
+ -->
+<!-- Title: Database Structure Pages: 1 -->
+<svg width="1498pt" height="1073pt"
+ viewBox="0.00 0.00 1498.00 1073.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 1069)">
+<title>Database Structure</title>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-1069 1494,-1069 1494,4 -4,4"/>
+<text text-anchor="middle" x="745" y="-1049.8" font-family="Helvetica,sans-Serif" font-size="14.00" fill="#000000">ER Diagram: db</text>
+<!-- acls -->
+<g id="node1" class="node">
+<title>acls</title>
+<polygon fill="#dddddd" stroke="transparent" points="700,-556 700,-576 828,-576 828,-556 700,-556"/>
+<polygon fill="none" stroke="#000000" points="700,-556 700,-576 828,-576 828,-556 700,-556"/>
+<text text-anchor="start" x="753.1172" y="-561.8" font-family="Times,serif" font-size="14.00" fill="#000000">acls</text>
+<polygon fill="none" stroke="#000000" points="700,-536 700,-556 828,-556 828,-536 700,-536"/>
+<text text-anchor="start" x="748.5562" y="-542.8" font-family="Times,serif" font-size="14.00" fill="#000000">id:</text>
+<text text-anchor="start" x="763.3354" y="-542.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="700,-516 700,-536 828,-536 828,-516 700,-516"/>
+<text text-anchor="start" x="704.501" y="-522.8" font-family="Times,serif" font-size="14.00" fill="#000000">created_at:</text>
+<text text-anchor="start" x="765.9014" y="-522.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-496 700,-516 828,-516 828,-496 700,-496"/>
+<text text-anchor="start" x="702.5459" y="-502.8" font-family="Times,serif" font-size="14.00" fill="#000000">updated_at:</text>
+<text text-anchor="start" x="767.8564" y="-502.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-476 700,-496 828,-496 828,-476 700,-476"/>
+<text text-anchor="start" x="704.4941" y="-482.8" font-family="Times,serif" font-size="14.00" fill="#000000">deleted_at:</text>
+<text text-anchor="start" x="765.9082" y="-482.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-456 700,-476 828,-476 828,-456 700,-456"/>
+<text text-anchor="start" x="703.3721" y="-462.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_pattern:</text>
+<text text-anchor="start" x="776.4688" y="-462.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-436 700,-456 828,-456 828,-436 700,-436"/>
+<text text-anchor="start" x="720.8721" y="-442.8" font-family="Times,serif" font-size="14.00" fill="#000000">action:</text>
+<text text-anchor="start" x="758.9688" y="-442.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-416 700,-436 828,-436 828,-416 700,-416"/>
+<text text-anchor="start" x="734.9492" y="-422.8" font-family="Times,serif" font-size="14.00" fill="#000000">weight:</text>
+<text text-anchor="start" x="776.9424" y="-422.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="700,-396 700,-416 828,-416 828,-396 700,-396"/>
+<text text-anchor="start" x="711.9272" y="-402.8" font-family="Times,serif" font-size="14.00" fill="#000000">comment:</text>
+<text text-anchor="start" x="767.9136" y="-402.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+</g>
+<!-- host_group_acls -->
+<g id="node2" class="node">
+<title>host_group_acls</title>
+<polygon fill="#dddddd" stroke="transparent" points="137,-673 137,-693 243,-693 243,-673 137,-673"/>
+<polygon fill="none" stroke="#000000" points="137,-673 137,-693 243,-693 243,-673 137,-673"/>
+<text text-anchor="start" x="144.1172" y="-678.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_group_acls</text>
+<polygon fill="none" stroke="#000000" points="137,-653 137,-673 243,-673 243,-653 137,-653"/>
+<text text-anchor="start" x="139.5562" y="-659.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_group_id:</text>
+<text text-anchor="start" x="224.3354" y="-659.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="137,-633 137,-653 243,-653 243,-633 137,-633"/>
+<text text-anchor="start" x="162.8975" y="-639.8" font-family="Times,serif" font-size="14.00" fill="#000000">acl_id:</text>
+<text text-anchor="start" x="200.9941" y="-639.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+</g>
+<!-- host_group_acls&#45;&gt;acls -->
+<g id="edge1" class="edge">
+<title>host_group_acls:acl_id&#45;&gt;acls:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-643C447.1889,-643 490.9328,-549.194 689.7944,-546.0793"/>
+<polygon fill="#444444" stroke="#444444" points="700.0272,-549.4999 690.0003,-546.0778 699.9728,-542.5001 700.0272,-549.4999"/>
+</g>
+<!-- host_groups -->
+<g id="node3" class="node">
+<title>host_groups</title>
+<polygon fill="#dddddd" stroke="transparent" points="700,-722 700,-742 828,-742 828,-722 700,-722"/>
+<polygon fill="none" stroke="#000000" points="700,-722 700,-742 828,-742 828,-722 700,-722"/>
+<text text-anchor="start" x="729.7759" y="-727.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_groups</text>
+<polygon fill="none" stroke="#000000" points="700,-702 700,-722 828,-722 828,-702 700,-702"/>
+<text text-anchor="start" x="748.5562" y="-708.8" font-family="Times,serif" font-size="14.00" fill="#000000">id:</text>
+<text text-anchor="start" x="763.3354" y="-708.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="700,-682 700,-702 828,-702 828,-682 700,-682"/>
+<text text-anchor="start" x="704.501" y="-688.8" font-family="Times,serif" font-size="14.00" fill="#000000">created_at:</text>
+<text text-anchor="start" x="765.9014" y="-688.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-662 700,-682 828,-682 828,-662 700,-662"/>
+<text text-anchor="start" x="702.5459" y="-668.8" font-family="Times,serif" font-size="14.00" fill="#000000">updated_at:</text>
+<text text-anchor="start" x="767.8564" y="-668.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-642 700,-662 828,-662 828,-642 700,-642"/>
+<text text-anchor="start" x="704.4941" y="-648.8" font-family="Times,serif" font-size="14.00" fill="#000000">deleted_at:</text>
+<text text-anchor="start" x="765.9082" y="-648.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-622 700,-642 828,-642 828,-622 700,-622"/>
+<text text-anchor="start" x="722.8169" y="-628.8" font-family="Times,serif" font-size="14.00" fill="#000000">name:</text>
+<text text-anchor="start" x="757.0239" y="-628.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-602 700,-622 828,-622 828,-602 700,-602"/>
+<text text-anchor="start" x="711.9272" y="-608.8" font-family="Times,serif" font-size="14.00" fill="#000000">comment:</text>
+<text text-anchor="start" x="767.9136" y="-608.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+</g>
+<!-- host_group_acls&#45;&gt;host_groups -->
+<g id="edge2" class="edge">
+<title>host_group_acls:host_group_id&#45;&gt;host_groups:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-663C443.884,-663 494.0731,-710.3866 689.9535,-711.9599"/>
+<polygon fill="#444444" stroke="#444444" points="699.986,-715.5 690.0001,-711.96 700.014,-708.5 699.986,-715.5"/>
+</g>
+<!-- host_host_groups -->
+<g id="node4" class="node">
+<title>host_host_groups</title>
+<polygon fill="#dddddd" stroke="transparent" points="137,-787 137,-807 243,-807 243,-787 137,-787"/>
+<polygon fill="none" stroke="#000000" points="137,-787 137,-807 243,-807 243,-787 137,-787"/>
+<text text-anchor="start" x="140.6069" y="-792.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_host_groups</text>
+<polygon fill="none" stroke="#000000" points="137,-767 137,-787 243,-787 243,-767 137,-767"/>
+<text text-anchor="start" x="159.3872" y="-773.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_id:</text>
+<text text-anchor="start" x="204.5044" y="-773.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="137,-747 137,-767 243,-767 243,-747 137,-747"/>
+<text text-anchor="start" x="139.5562" y="-753.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_group_id:</text>
+<text text-anchor="start" x="224.3354" y="-753.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+</g>
+<!-- host_host_groups&#45;&gt;host_groups -->
+<g id="edge4" class="edge">
+<title>host_host_groups:host_group_id&#45;&gt;host_groups:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-757C443.7051,-757 494.243,-713.4817 689.9622,-712.0368"/>
+<polygon fill="#444444" stroke="#444444" points="700.0129,-715.5 690.0001,-712.0368 699.9871,-708.5 700.0129,-715.5"/>
+</g>
+<!-- hosts -->
+<g id="node5" class="node">
+<title>hosts</title>
+<polygon fill="#dddddd" stroke="transparent" points="700,-1008 700,-1028 828,-1028 828,-1008 700,-1008"/>
+<polygon fill="none" stroke="#000000" points="700,-1008 700,-1028 828,-1028 828,-1008 700,-1008"/>
+<text text-anchor="start" x="749.6069" y="-1013.8" font-family="Times,serif" font-size="14.00" fill="#000000">hosts</text>
+<polygon fill="none" stroke="#000000" points="700,-988 700,-1008 828,-1008 828,-988 700,-988"/>
+<text text-anchor="start" x="748.5562" y="-994.8" font-family="Times,serif" font-size="14.00" fill="#000000">id:</text>
+<text text-anchor="start" x="763.3354" y="-994.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="700,-968 700,-988 828,-988 828,-968 700,-968"/>
+<text text-anchor="start" x="704.501" y="-974.8" font-family="Times,serif" font-size="14.00" fill="#000000">created_at:</text>
+<text text-anchor="start" x="765.9014" y="-974.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-948 700,-968 828,-968 828,-948 700,-948"/>
+<text text-anchor="start" x="702.5459" y="-954.8" font-family="Times,serif" font-size="14.00" fill="#000000">updated_at:</text>
+<text text-anchor="start" x="767.8564" y="-954.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-928 700,-948 828,-948 828,-928 700,-928"/>
+<text text-anchor="start" x="704.4941" y="-934.8" font-family="Times,serif" font-size="14.00" fill="#000000">deleted_at:</text>
+<text text-anchor="start" x="765.9082" y="-934.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="700,-908 700,-928 828,-928 828,-908 700,-908"/>
+<text text-anchor="start" x="722.8169" y="-914.8" font-family="Times,serif" font-size="14.00" fill="#000000">name:</text>
+<text text-anchor="start" x="757.0239" y="-914.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-888 700,-908 828,-908 828,-888 700,-888"/>
+<text text-anchor="start" x="725.5376" y="-894.8" font-family="Times,serif" font-size="14.00" fill="#000000">addr:</text>
+<text text-anchor="start" x="754.3032" y="-894.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-868 700,-888 828,-888 828,-868 700,-868"/>
+<text text-anchor="start" x="726.3135" y="-874.8" font-family="Times,serif" font-size="14.00" fill="#000000">user:</text>
+<text text-anchor="start" x="753.5273" y="-874.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-848 700,-868 828,-868 828,-848 700,-848"/>
+<text text-anchor="start" x="711.5342" y="-854.8" font-family="Times,serif" font-size="14.00" fill="#000000">password:</text>
+<text text-anchor="start" x="768.3066" y="-854.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-828 700,-848 828,-848 828,-828 700,-828"/>
+<text text-anchor="start" x="722.501" y="-834.8" font-family="Times,serif" font-size="14.00" fill="#000000">ssh_key_id:</text>
+<text text-anchor="start" x="789.3906" y="-834.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="700,-808 700,-828 828,-828 828,-808 700,-808"/>
+<text text-anchor="start" x="708.4238" y="-814.8" font-family="Times,serif" font-size="14.00" fill="#000000">fingerprint:</text>
+<text text-anchor="start" x="771.417" y="-814.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-788 700,-808 828,-808 828,-788 700,-788"/>
+<text text-anchor="start" x="711.9272" y="-794.8" font-family="Times,serif" font-size="14.00" fill="#000000">comment:</text>
+<text text-anchor="start" x="767.9136" y="-794.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-768 700,-788 828,-788 828,-768 700,-768"/>
+<text text-anchor="start" x="708.3394" y="-774.8" font-family="Times,serif" font-size="14.00" fill="#000000">host_key:</text>
+<text text-anchor="start" x="762.7808" y="-774.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARBINARY</text>
+</g>
+<!-- host_host_groups&#45;&gt;hosts -->
+<g id="edge3" class="edge">
+<title>host_host_groups:host_id&#45;&gt;hosts:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-777C465.1991,-777 474.1608,-991.3602 689.9044,-997.8496"/>
+<polygon fill="#444444" stroke="#444444" points="699.9478,-1001.4996 690.0011,-997.851 700.0522,-994.5004 699.9478,-1001.4996"/>
+</g>
+<!-- ssh_keys -->
+<g id="node8" class="node">
+<title>ssh_keys</title>
+<polygon fill="#dddddd" stroke="transparent" points="1255,-848 1255,-868 1383,-868 1383,-848 1255,-848"/>
+<polygon fill="none" stroke="#000000" points="1255,-848 1255,-868 1383,-868 1383,-848 1255,-848"/>
+<text text-anchor="start" x="1293.7207" y="-853.8" font-family="Times,serif" font-size="14.00" fill="#000000">ssh_keys</text>
+<polygon fill="none" stroke="#000000" points="1255,-828 1255,-848 1383,-848 1383,-828 1255,-828"/>
+<text text-anchor="start" x="1303.5562" y="-834.8" font-family="Times,serif" font-size="14.00" fill="#000000">id:</text>
+<text text-anchor="start" x="1318.3354" y="-834.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="1255,-808 1255,-828 1383,-828 1383,-808 1255,-808"/>
+<text text-anchor="start" x="1259.501" y="-814.8" font-family="Times,serif" font-size="14.00" fill="#000000">created_at:</text>
+<text text-anchor="start" x="1320.9014" y="-814.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="1255,-788 1255,-808 1383,-808 1383,-788 1255,-788"/>
+<text text-anchor="start" x="1257.5459" y="-794.8" font-family="Times,serif" font-size="14.00" fill="#000000">updated_at:</text>
+<text text-anchor="start" x="1322.8564" y="-794.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="1255,-768 1255,-788 1383,-788 1383,-768 1255,-768"/>
+<text text-anchor="start" x="1259.4941" y="-774.8" font-family="Times,serif" font-size="14.00" fill="#000000">deleted_at:</text>
+<text text-anchor="start" x="1320.9082" y="-774.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
+<polygon fill="none" stroke="#000000" points="1255,-748 1255,-768 1383,-768 1383,-748 1255,-748"/>
+<text text-anchor="start" x="1277.8169" y="-754.8" font-family="Times,serif" font-size="14.00" fill="#000000">name:</text>
+<text text-anchor="start" x="1312.0239" y="-754.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="1255,-728 1255,-748 1383,-748 1383,-728 1255,-728"/>
+<text text-anchor="start" x="1280.9238" y="-734.8" font-family="Times,serif" font-size="14.00" fill="#000000">type:</text>
+<text text-anchor="start" x="1308.917" y="-734.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="1255,-708 1255,-728 1383,-728 1383,-708 1255,-708"/>
+<text text-anchor="start" x="1291.5044" y="-714.8" font-family="Times,serif" font-size="14.00" fill="#000000">length:</text>
+<text text-anchor="start" x="1330.3872" y="-714.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="1255,-688 1255,-708 1383,-708 1383,-688 1255,-688"/>
+<text text-anchor="start" x="1263.4238" y="-694.8" font-family="Times,serif" font-size="14.00" fill="#000000">fingerprint:</text>
+<text text-anchor="start" x="1326.417" y="-694.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="1255,-668 1255,-688 1383,-688 1383,-668 1255,-668"/>
+<text text-anchor="start" x="1268.0928" y="-674.8" font-family="Times,serif" font-size="14.00" fill="#000000">priv_key:</text>
+<text text-anchor="start" x="1321.748" y="-674.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="1255,-648 1255,-668 1383,-668 1383,-648 1255,-648"/>
+<text text-anchor="start" x="1268.8687" y="-654.8" font-family="Times,serif" font-size="14.00" fill="#000000">pub_key:</text>
+<text text-anchor="start" x="1320.9722" y="-654.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="1255,-628 1255,-648 1383,-648 1383,-628 1255,-628"/>
+<text text-anchor="start" x="1266.9272" y="-634.8" font-family="Times,serif" font-size="14.00" fill="#000000">comment:</text>
+<text text-anchor="start" x="1322.9136" y="-634.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+</g>
+<!-- hosts&#45;&gt;ssh_keys -->
+<g id="edge5" class="edge">
+<title>hosts:ssh_key_id&#45;&gt;ssh_keys:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M828,-838C1014.3492,-838 1063.4615,-838 1244.8519,-838"/>
+<polygon fill="#444444" stroke="#444444" points="1255,-841.5 1245,-838.0001 1255,-834.5 1255,-841.5"/>
+</g>
+<!-- migrations -->
+<g id="node6" class="node">
+<title>migrations</title>
+<polygon fill="#dddddd" stroke="transparent" points="156,-853 156,-873 224,-873 224,-853 156,-853"/>
+<polygon fill="none" stroke="#000000" points="156,-853 156,-873 224,-873 224,-853 156,-853"/>
+<text text-anchor="start" x="160.0586" y="-858.8" font-family="Times,serif" font-size="14.00" fill="#000000">migrations</text>
+<polygon fill="none" stroke="#000000" points="156,-833 156,-853 224,-853 224,-833 156,-833"/>
+<text text-anchor="start" x="158.5308" y="-839.8" font-family="Times,serif" font-size="14.00" fill="#000000">id:</text>
+<text text-anchor="start" x="173.3101" y="-839.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+</g>
+<!-- settings -->
+<g id="node7" class="node">
+<title>settings</title>
+<polygon fill="#dddddd" stroke="transparent" points="126,-1019 126,-1039 254,-1039 254,-1019 126,-1019"/>
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+<!-- user_group_acls -->
+<g id="node9" class="node">
+<title>user_group_acls</title>
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+<text text-anchor="start" x="139.563" y="-516.8" font-family="Times,serif" font-size="14.00" fill="#000000">user_group_id:</text>
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+</g>
+<!-- user_group_acls&#45;&gt;acls -->
+<g id="edge6" class="edge">
+<title>user_group_acls:acl_id&#45;&gt;acls:id</title>
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+<polygon fill="#444444" stroke="#444444" points="699.9869,-549.5 690.0001,-545.9624 700.0131,-542.5 699.9869,-549.5"/>
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+<!-- user_groups -->
+<g id="node10" class="node">
+<title>user_groups</title>
+<polygon fill="#dddddd" stroke="transparent" points="700,-350 700,-370 828,-370 828,-350 700,-350"/>
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+</g>
+<!-- user_group_acls&#45;&gt;user_groups -->
+<g id="edge7" class="edge">
+<title>user_group_acls:user_group_id&#45;&gt;user_groups:id</title>
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+</g>
+<!-- user_keys -->
+<g id="node11" class="node">
+<title>user_keys</title>
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+<polygon fill="none" stroke="#000000" points="118,-284 118,-304 262,-304 262,-284 118,-284"/>
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+</g>
+<!-- users -->
+<g id="node13" class="node">
+<title>users</title>
+<polygon fill="#dddddd" stroke="transparent" points="700,-184 700,-204 828,-204 828,-184 700,-184"/>
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+<text text-anchor="start" x="702.9824" y="-10.8" font-family="Times,serif" font-size="14.00" fill="#000000">invite_token:</text>
+<text text-anchor="start" x="776.8584" y="-10.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+</g>
+<!-- user_keys&#45;&gt;users -->
+<g id="edge8" class="edge">
+<title>user_keys:user_id&#45;&gt;users:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M262,-174C453.2448,-174 503.5773,-174 689.8681,-174"/>
+<polygon fill="#444444" stroke="#444444" points="700,-177.5 690,-174.0001 700,-170.5 700,-177.5"/>
+</g>
+<!-- user_user_groups -->
+<g id="node12" class="node">
+<title>user_user_groups</title>
+<polygon fill="#dddddd" stroke="transparent" points="137,-370 137,-390 243,-390 243,-370 137,-370"/>
+<polygon fill="none" stroke="#000000" points="137,-370 137,-390 243,-390 243,-370 137,-370"/>
+<text text-anchor="start" x="140.6206" y="-375.8" font-family="Times,serif" font-size="14.00" fill="#000000">user_user_groups</text>
+<polygon fill="none" stroke="#000000" points="137,-350 137,-370 243,-370 243,-350 137,-350"/>
+<text text-anchor="start" x="159.394" y="-356.8" font-family="Times,serif" font-size="14.00" fill="#000000">user_id:</text>
+<text text-anchor="start" x="204.4976" y="-356.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
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+<text text-anchor="start" x="139.563" y="-336.8" font-family="Times,serif" font-size="14.00" fill="#000000">user_group_id:</text>
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+</g>
+<!-- user_user_groups&#45;&gt;user_groups -->
+<g id="edge10" class="edge">
+<title>user_user_groups:user_group_id&#45;&gt;user_groups:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-340C442.64,-340 495.1088,-340 689.7185,-340"/>
+<polygon fill="#444444" stroke="#444444" points="700,-343.5 690,-340.0001 700,-336.5 700,-343.5"/>
+</g>
+<!-- user_user_groups&#45;&gt;users -->
+<g id="edge9" class="edge">
+<title>user_user_groups:user_id&#45;&gt;users:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-360C458.8631,-360 480.0858,-179.7671 689.8664,-174.1348"/>
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+</g>
+</g>
+</svg>
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -0,0 +1,53 @@
+defaults: &defaults
+  working_directory: /go/src/moul.io/sshportal
+  docker:
+    - image: circleci/golang:1.11
+  environment:
+    GO111MODULE: "on"
+
+install_retry: &install_retry
+  run:
+    name: install retry
+    command: |
+      command -v wget &>/dev/null && wget -O /tmp/retry "https://github.com/moul/retry/releases/download/v0.5.0/retry_$(uname -s)_$(uname -m)" || true
+      if [ ! -f /tmp/retry ]; then command -v curl &>/dev/null && curl -L -o /tmp/retry "https://github.com/moul/retry/releases/download/v0.5.0/retry_$(uname -s)_$(uname -m)"; fi
+      chmod +x /tmp/retry
+      /tmp/retry --version
+
+version: 2
+jobs:
+  go.build:
+    <<: *defaults
+    steps:
+      - checkout
+      - *install_retry
+      - run: /tmp/retry -m 3 go mod download
+      - run: /tmp/retry -m 3 go mod vendor
+      - run: /tmp/retry -m 3 make install
+      - run: GO111MODULE=off /tmp/retry -m 3 go test -v ./...
+      - run: /tmp/retry -m 3 curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s v1.12.2
+      - run: PATH=$PATH:$(pwd)/bin /tmp/retry -m 3 make lint
+
+  docker.integration:
+    <<: *defaults
+    steps:
+      - checkout
+      - run:
+          name: Install Docker Compose
+          command: |
+            umask 022
+            curl -L https://github.com/docker/compose/releases/download/1.11.2/docker-compose-`uname -s`-`uname -m` > ~/docker-compose
+      - setup_remote_docker:
+          docker_layer_caching: true
+      - *install_retry
+      - run: /tmp/retry -m 3 docker build -t moul/sshportal .
+      - run: /tmp/retry -m 3 make integration
+
+
+workflows:
+  version: 2
+  build_and_integration:
+    jobs:
+      - go.build
+      - docker.integration
+      # requires: docker.build?
--- a/.dockerignore
+++ b/.dockerignore
@@ -1 +1,4 @@
-examples
+examples/
+.circleci/
+.assets/
+/sshportal
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,25 @@
+<!-- Thanks for filling an issue!
+
+If this is a BUG REPORT, please:
+  - Fill in as much of the template below as you can
+
+If this is a FEATURE REQUEST, please:
+  - Describe *in detail* the feature/behavior/change you would like to see
+-->
+
+**What happened**:
+
+**What you expected to happen**:
+
+**How to reproduce it (as minimally and precisely as possible)**:
+
+**Anything else we need to know?**:
+
+<!--
+**Environment**:
+- sshportal --version
+- ssh sshportal info
+- OS (e.g. from /etc/os-release): 
+- install method (e.g. go/docker/brew/...):
+- others:
+-->
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,7 @@
+<!--  Thanks for sending a pull request!  Here are some tips for you -->
+
+**What this PR does / why we need it**:
+
+**Which issue this PR fixes**: fixes #xxx, fixes #xxx...
+
+**Special notes for your reviewer**:
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+/log/
 /sshportal
 *.db
 /data
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -0,0 +1,34 @@
+run:
+  deadline: 1m
+  tests: false
+  #skip-files:
+  #  - ".*\\.gen\\.go"
+
+linters-settings:
+  golint:
+    min-confidence: 0
+  maligned:
+    suggest-new: true
+  goconst:
+    min-len: 5
+    min-occurrences: 4
+  misspell:
+    locale: US
+
+linters:
+  disable-all: true
+  enable:
+    - goconst
+    - misspell
+    - deadcode
+    - misspell
+    - structcheck
+    - errcheck
+    - unused
+    - varcheck
+    - staticcheck
+    - unconvert
+    - gofmt
+    - goimports
+    - golint
+    - ineffassign
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,74 @@
 # Changelog

+## master (unreleased)
+
+* Bump deps
+
+## v1.9.0 (2018-11-18)
+
+* Add `hostgroup update` and `usergroup update` commands ([#58](https://github.com/moul/sshportal/pull/58)) by [@adyxax](https://github.com/adyxax)
+* Add socket timeout ([#80](https://github.com/moul/sshportal/pull/80)) by [@ahhx](https://github.com/ahhx)
+* Add a flag to list only active sessions ([#76](https://github.com/moul/sshportal/pull/76)) by [@vdaviot](https://github.com/vdaviot)
+* Unset hop on host ([#74](https://github.com/moul/sshportal/pull/74)) by [@vdaviot](https://github.com/vdaviot)
+* Fix session status and duration display ([#75](https://github.com/moul/sshportal/pull/75)) by [@vdaviot](https://github.com/vdaviot)
+* Fix log path and filename on Windows ([#78](https://github.com/moul/sshportal/pull/78)) by [@Raerten](https://github.com/Raerten)
+* Admin user is not editable ([#69](https://github.com/moul/sshportal/pull/69)) by [@alenn-m](https://github.com/alenn-m)
+* Switch to go modules (go1.11) ([#83](https://github.com/moul/sshportal/pull/83))
+* Switch to moul.io/sshportal canonical URL ([#86](https://github.com/moul/sshportal/pull/86))
+* Switch to golangci-lint ([#87](https://github.com/moul/sshportal/pull/87))
+
+## v1.8.0 (2018-04-02)
+
+* The default created user now has the same username as the user starting sshportal (was hardcoded "admin")
+* Add Telnet support
+* Add TTY audit feature ([#23](https://github.com/moul/sshportal/issues/23)) by [@sabban](https://github.com/sabban)
+* Fix `--assign-*` commands when using MySQL driver ([#45](https://github.com/moul/sshportal/issues/45))
+* Add *HOP* support, an efficient and integrated way of using a jump host transparently ([#47](https://github.com/moul/sshportal/issues/47)) by [@mathieui](https://github.com/mathieui)
+* Fix panic on some `ls` commands ([#54](https://github.com/moul/sshportal/pull/54)) by [@jle64](https://github.com/jle64)
+* Add tunnels (`direct-tcp`) support with logging ([#44](https://github.com/moul/sshportal/issues/44)) by [@sabban](https://github.com/sabban)
+* Add `key import` command ([#52](https://github.com/moul/sshportal/issues/52)) by [@adyxax](https://github.com/adyxax)
+* Add 'exec' logging ([#40](https://github.com/moul/sshportal/issues/40)) by [@sabban](https://github.com/sabban)
+
+## v1.7.1 (2018-01-03)
+
+* Return non-null exit-code on authentication error
+* **hotfix**: repair invite system (broken in v1.7.0)
+
+## v1.7.0 (2018-01-02)
+
+Breaking changes:
+* Use `sshportal server` instead of `sshportal` to start a new server (nothing to change if using the docker image)
+* Remove `--config-user` and `--healthcheck-user` global options
+
+Changes:
+* Fix connection failure when sending too many environment variables (fix [#22](https://github.com/moul/sshportal/issues/22))
+* Fix panic when entering empty command (fix [#13](https://github.com/moul/sshportal/issues/13))
+* Add `config backup --ignore-events` option
+* Add `sshportal healthcheck [--addr=] [--wait] [--quiet]` cli command
+* Add [Docker Healthcheck](https://docs.docker.com/engine/reference/builder/#healthcheck) helper
+* Support Putty (fix [#24](https://github.com/moul/sshportal/issues/24))
+
+## v1.6.0 (2017-12-12)
+
+* Add `--latest` and `--quiet` options to `ls` commands
+* Add `healthcheck` user
+* Add `key show KEY` command
+
+## v1.5.0 (2017-12-02)
+
+* Create Session objects on each connections (history)
+* Connection history
+* Audit log
+* Add dynamic strict host key checking (learning on the first time, strict on the next ones)
+* Add-back MySQL support (experimental)
+* Fix some backup/restore bugs
+
+## v1.4.0 (2017-11-24)
+
+* Add 'key setup' command (easy SSH key installation)
+* Add Updated and Created fields in 'ls' commands
+* Add `--aes-key` option to encrypt sensitive data
+
 ## v1.3.0 (2017-11-23)

 * More details in 'ls' commands
--- a/11
+++ b/11
@@ -1,10 +1,13 @@
 # build
-FROM            golang:1.9 as builder
-COPY            . /go/src/github.com/moul/sshportal
-WORKDIR         /go/src/github.com/moul/sshportal
+FROM            golang:1.11 as builder
+COPY            . /go/src/moul.io/sshportal
+WORKDIR         /go/src/moul.io/sshportal
 RUN             make _docker_install

 # minimal runtime
-FROM            scratch
+FROM            alpine
 COPY            --from=builder /go/bin/sshportal /bin/sshportal
 ENTRYPOINT      ["/bin/sshportal"]
+CMD             ["server"]
+EXPOSE          2222
+HEALTHCHECK     CMD /bin/sshportal healthcheck --wait
--- a/vendor/github.com/moby/moby/LICENSE
+++ b/vendor/github.com/moby/moby/LICENSE
@@ -1,7 +1,6 @@
-
                                 Apache License
                           Version 2.0, January 2004
-                        https://www.apache.org/licenses/
+                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

@@ -176,13 +175,24 @@

   END OF TERMS AND CONDITIONS

-   Copyright 2013-2017 Docker, Inc.
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2017 Manfred Touron <m@42.am>

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

-       https://www.apache.org/licenses/LICENSE-2.0
+       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
--- a/28
+++ b/28
@@ -1,13 +1,14 @@
 GIT_SHA ?=	$(shell git rev-parse HEAD)
 GIT_TAG ?=	$(shell git describe --tags --always)
 GIT_BRANCH ?=	$(shell git rev-parse --abbrev-ref HEAD)
-LDFLAGS ?=	-X main.GIT_SHA=$(GIT_SHA) -X main.GIT_TAG=$(GIT_TAG) -X main.GIT_BRANCH=$(GIT_BRANCH)
+LDFLAGS ?=	-X main.GitSha=$(GIT_SHA) -X main.GitTag=$(GIT_TAG) -X main.GitBranch=$(GIT_BRANCH)
 VERSION ?=	$(shell grep 'VERSION =' main.go | cut -d'"' -f2)
-PORT ?=		2222
+AES_KEY ?=	my-dummy-aes-key
+GO ?=		GO111MODULE=on go

 .PHONY: install
 install:
-	go install -ldflags '$(LDFLAGS)' .
+	$(GO) install -v -ldflags '$(LDFLAGS)' .

 .PHONY: docker.build
 docker.build:
@@ -15,23 +16,32 @@ docker.build:

 .PHONY: integration
 integration:
-	PORT="$(PORT)" bash ./examples/integration/test.sh
+	cd ./examples/integration && make

 .PHONY: _docker_install
 _docker_install:
-	CGO_ENABLED=1 go build -ldflags '-extldflags "-static" $(LDFLAGS)' -tags netgo -v -o /go/bin/sshportal
+	CGO_ENABLED=1 $(GO) build -ldflags '-extldflags "-static" $(LDFLAGS)' -tags netgo -v -o /go/bin/sshportal

 .PHONY: dev
 dev:
-	-go get github.com/githubnemo/CompileDaemon
-	CompileDaemon -exclude-dir=.git -exclude=".#*" -color=true -command="./sshportal --demo --debug --bind-address=:$(PORT)" .
+	-$(GO) get github.com/githubnemo/CompileDaemon
+	CompileDaemon -exclude-dir=.git -exclude=".#*" -color=true -command="./sshportal server --debug --bind-address=:$(PORT) --aes-key=$(AES_KEY) $(EXTRA_RUN_OPTS)" .

 .PHONY: test
 test:
-	go test -i .
-	go test -v .
+	$(GO) test -i ./...
+	$(GO) test -v ./...
+
+.PHONY: lint
+lint:
+	golangci-lint run --verbose ./...

 .PHONY: backup
 backup:
 	mkdir -p data/backups
 	cp sshportal.db data/backups/$(shell date +%s)-$(VERSION)-sshportal.sqlite
+
+doc:
+	dot -Tsvg ./.assets/overview.dot > ./.assets/overview.svg
+	dot -Tsvg ./.assets/cluster-mysql.dot > ./.assets/cluster-mysql.svg
+	dot -Tsvg ./.assets/flow-diagram.dot > ./.assets/flow-diagram.svg
--- a/README.md
+++ b/README.md
@@ -1,43 +1,70 @@
 # sshportal

+[![CircleCI](https://circleci.com/gh/moul/sshportal.svg?style=svg)](https://circleci.com/gh/moul/sshportal)
+[![Docker Build Status](https://img.shields.io/docker/build/moul/sshportal.svg)](https://hub.docker.com/r/moul/sshportal/)
+[![Go Report Card](https://goreportcard.com/moul.io/sshportal)](https://goreportcard.com/report/moul.io/sshportal)
+[![GoDoc](https://godoc.org/moul.io/sshportal?status.svg)](https://godoc.org/moul.io/sshportal)
+[![License](https://img.shields.io/github/license/moul/sshportal.svg)](https://github.com/moul/sshportal/blob/master/LICENSE)
+[![GitHub release](https://img.shields.io/github/release/moul/sshportal.svg)](https://github.com/moul/sshportal/releases)
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fmoul%2Fsshportal.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fmoul%2Fsshportal?ref=badge_shield)
+
 Jump host/Jump server without the jump, a.k.a Transparent SSH bastion

-```
-                       ┌ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─
-                                  DMZ           │
-┌────────┐             │             ┌────────┐
-│ homer  │───▶╔═════════════════╗───▶│ host1  │ │
-└────────┘    ║                 ║    └────────┘
-┌────────┐    ║                 ║    ┌────────┐ │
-│  bart  │───▶║    sshportal    ║───▶│ host2  │
-└────────┘    ║                 ║    └────────┘ │
-┌────────┐    ║                 ║    ┌────────┐
-│  lisa  │───▶╚═════════════════╝───▶│ host3  │ │
-└────────┘             │             └────────┘
-┌────────┐                           ┌────────┐ │
-│  ...   │             │             │  ...   │
-└────────┘                           └────────┘ │
-                       └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─
-```
+![sshportal demo](https://github.com/moul/sshportal/raw/master/.assets/demo.gif)
+
+---
+
+## Overview
+
+![sshportal overview](https://raw.github.com/moul/sshportal/master/.assets/overview.svg?sanitize=true)

 ## Features

-* Host management
-* User management
-* User Group management
-* Host Group management
-* Host Key management
-* User Key management
-* ACL management
-* Connect to host using key or password
+* Single autonomous binary (~10-20Mb) with no runtime dependencies (embeds ssh server and client)
+* Portable / Cross-platform (regularly tested on linux and OSX/darwin)
+* Store data in [Sqlite3](https://www.sqlite.org/) or [MySQL](https://www.mysql.com) (probably easy to add postgres, mssql thanks to gorm)
+* Stateless -> horizontally scalable when using [MySQL](https://www.mysql.com) as the backend
+* Connect to remote host using key or password
 * Admin commands can be run directly or in an interactive shell
+* Host management
+* User management (invite, group, stats)
+* Host Key management (create, remove, update, import)
+* Automatic remote host key learning
+* User Key management (multile keys per user)
+* ACL management (acl+user-groups+host-groups)
+* User roles (admin, trusted, standard, ...)
+* User invitations (no more "give me your public ssh key please")
+* Easy server installation (generate shell command to setup `authorized_keys`)
+* Sensitive data encryption
+* Session management (see active connections, history, stats, stop)
+* Audit log (logging every user action)
+* Record TTY Session
+* Tunnels logging
+* Host Keys verifications shared across users
+* Healthcheck user (replying OK to any user)
+* SSH compatibility
+  * ipv4 and ipv6 support
+  * [`scp`](https://linux.die.net/man/1/scp) support
+  * [`rsync`](https://linux.die.net/man/1/rsync) support
+  * [tunneling](https://www.ssh.com/ssh/tunneling/example) (local forward, remote forward, dynamic forward) support
+  * [`sftp`](https://www.ssh.com/ssh/sftp/) support
+  * [`ssh-agent`](https://www.ssh.com/ssh/agent) support
+  * [`X11 forwarding`](http://en.tldp.org/HOWTO/XDMCP-HOWTO/ssh.html) support
+  * Git support (can be used to easily use multiple user keys on GitHub, or access your own firewalled gitlab server)
+  * Do not require any SSH client modification or custom `.ssh/config`, works with every tested SSH programming libraries and every tested SSH clients
+* SSH to non-SSH proxy
+  * [Telnet](https://www.ssh.com/ssh/telnet) support
+
+## (Known) limitations
+
+* Does not work (yet?) with [`mosh`](https://mosh.org/)

 ## Usage

 Start the server

 ```console
-$ sshportal
+$ sshportal server
 2017/11/13 10:58:35 Admin user created, use the user 'invite:BpLnfgDsc2WD8F2q' to associate a public key with this account
 2017/11/13 10:58:35 SSH Server accepting connections on :2222
 ```
@@ -46,7 +73,7 @@ Link your SSH key with the admin account

 ```console
 $ ssh localhost -p 2222 -l invite:BpLnfgDsc2WD8F2q
-Welcome Administrator!
+Welcome admin!

 Your key is now associated with the user "admin@sshportal".
 Shared connection to localhost closed.
@@ -80,28 +107,18 @@ List hosts

 ```console
 config> host ls
-  ID | NAME |           URL           |   KEY   | PASS | GROUPS | COMMENT
-+----+------+-------------------------+---------+------+--------+---------+
-   1 | foo  | bart@foo.example.org:22 | default |      |      1 |
+  ID | NAME |           URL           |   KEY   | PASS | GROUPS  | COMMENT
+----+------+-------------------------+---------+------+---------+---------+
+   1 | foo  | bart@foo.example.org:22 | default |      | default |
 Total: 1 hosts.
 config>
 ```

-Get the default key in authorized_keys format
+Add the key to the server

 ```console
-config> key inspect default
-[...]
-    "PubKey": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCvUP/8FedyIe+a+RWU4KvJ1+iZwtWmY9czJubLwN4RcjKHQMzLqWC7pKZHAABCZjLJjVD/3Zb53jZwbh7mysAkocundMpvUL5+Yb4a8lDiflXkdXT9fZCx+ibJBk4jRnKLGIneSzVtFEerEwQKKnKQoCgPkZwCDaL/jHhDlOmAvxqAJrjiy42HXwppX2UuF8zujs6OKHRYJ/Q1vo0caa6/o1eoyXE9OrOwIk+IcAN3YIQi/B1BOlZOQBzHIZz83AFlD2TcPhyYcbxPyKGih84Zr3rQaaP1WiaiPqxzp3s5OhTLthc5XtCSLzmRSLvgC2eFdNhBDB5KLtO2khBkz5ID",
-[...]
-config>
-```
-
-Add this key to the server
-
-```console
-$ ssh bart@foo.example.org
-> umask 077; mkdir -p .ssh; echo ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCvUP/8FedyIe+a+RWU4KvJ1+iZwtWmY9czJubLwN4RcjKHQMzLqWC7pKZHAABCZjLJjVD/3Zb53jZwbh7mysAkocundMpvUL5+Yb4a8lDiflXkdXT9fZCx+ibJBk4jRnKLGIneSzVtFEerEwQKKnKQoCgPkZwCDaL/jHhDlOmAvxqAJrjiy42HXwppX2UuF8zujs6OKHRYJ/Q1vo0caa6/o1eoyXE9OrOwIk+IcAN3YIQi/B1BOlZOQBzHIZz83AFlD2TcPhyYcbxPyKGih84Zr3rQaaP1WiaiPqxzp3s5OhTLthc5XtCSLzmRSLvgC2eFdNhBDB5KLtO2khBkz5ID >> .ssh/authorized_keys
+$ ssh bart@foo.example.org "$(ssh localhost -p 2222 -l admin key setup default)"
+$
 ```

 Profit
@@ -113,16 +130,22 @@ bart@foo>

 Invite friends

+*This command doesn't create a user on the remote server, it only creates an account in the sshportal database.*
+
 ```console
 config> user invite bob@example.com
 User 2 created.
-To associate this account with a key, use the following SSH user: 'invite-NfHK5a84jjJkwzDk'.
+To associate this account with a key, use the following SSH user: 'invite:NfHK5a84jjJkwzDk'.
 config>
 ```

-## CLI
+## Flow Diagram

-sshportal embeds a configuration CLI.
+![Flow Diagram](https://raw.github.com/moul/sshportal/master/.assets/flow-diagram.svg?sanitize=true)
+
+## built-in shell
+
+`sshportal` embeds a configuration CLI.

 By default, the configuration user is `admin`, (can be changed using `--config-user=<value>` when starting the server.

@@ -141,42 +164,55 @@ You can enter in interactive mode using this syntax: `ssh admin@portal.example.o
 acl help
 acl create [-h] [--hostgroup=HOSTGROUP...] [--usergroup=USERGROUP...] [--pattern=<value>] [--comment=<value>] [--action=<value>] [--weight=value]
 acl inspect [-h] ACL...
-acl ls [-h]
+acl ls [-h] [--latest] [--quiet]
 acl rm [-h] ACL...
 acl update [-h] [--comment=<value>] [--action=<value>] [--weight=<value>] [--assign-hostgroup=HOSTGROUP...] [--unassign-hostgroup=HOSTGROUP...] [--assign-usergroup=USERGROUP...] [--unassign-usergroup=USERGROUP...] ACL...

 # config management
 config help
-config backup [-h] [--indent]
-config restore [-h] [--confirm]
+config backup [-h] [--indent] [--decrypt]
+config restore [-h] [--confirm] [--decrypt]
+
+# event management
+event help
+event ls [-h] [--latest] [--quiet]
+event inspect [-h] EVENT...

 # host management
 host help
-host create [-h] [--name=<value>] [--password=<value>] [--fingerprint=<value>] [--comment=<value>] [--key=KEY] [--group=HOSTGROUP...] <username>[:<password>]@<host>[:<port>]
-host inspect [-h] HOST...
-host ls [-h]
+host create [-h] [--name=<value>] [--password=<value>] [--comment=<value>] [--key=KEY] [--group=HOSTGROUP...] [--hop=HOST] <username>[:<password>]@<host>[:<port>]
+host inspect [-h] [--decrypt] HOST...
+host ls [-h] [--latest] [--quiet]
 host rm [-h] HOST...
-host update [-h] [--name=<value>] [--comment=<value>] [--fingerprint=<value>] [--key=KEY] [--assign-group=HOSTGROUP...] [--unassign-group=HOSTGROUP...] HOST...
+host update [-h] [--name=<value>] [--comment=<value>] [--key=KEY] [--assign-group=HOSTGROUP...] [--unassign-group=HOSTGROUP...] [--set-hop=HOST] [--unset-hop] HOST...

 # hostgroup management
 hostgroup help
 hostgroup create [-h] [--name=<value>] [--comment=<value>]
 hostgroup inspect [-h] HOSTGROUP...
-hostgroup ls [-h]
+hostgroup ls [-h] [--latest] [--quiet]
 hostgroup rm [-h] HOSTGROUP...

 # key management
 key help
 key create [-h] [--name=<value>] [--type=<value>] [--length=<value>] [--comment=<value>]
-key inspect [-h] KEY...
-key ls [-h]
+key import [-h] [--name=<value>] [--comment=<value>]
+key inspect [-h] [--decrypt] KEY...
+key ls [-h] [--latest] [--quiet]
 key rm [-h] KEY...
+key setup [-h] KEY
+key show [-h] KEY
+
+# session management
+session help
+session ls [-h] [--latest] [--quiet]
+session inspect [-h] SESSION...

 # user management
 user help
 user invite [-h] [--name=<value>] [--comment=<value>] [--group=USERGROUP...] <email>
 user inspect [-h] USER...
-user ls [-h]
+user ls [-h] [--latest] [--quiet]
 user rm [-h] USER...
 user update [-h] [--name=<value>] [--email=<value>] [--set-admin] [--unset-admin] [--assign-group=USERGROUP...] [--unassign-group=USERGROUP...] USER...

@@ -184,7 +220,7 @@ user update [-h] [--name=<value>] [--email=<value>] [--set-admin] [--unset-admin
 usergroup help
 hostgroup create [-h] [--name=<value>] [--comment=<value>]
 usergroup inspect [-h] USERGROUP...
-usergroup ls [-h]
+usergroup ls [-h] [--latest] [--quiet]
 usergroup rm [-h] USERGROUP...

 # other
@@ -203,7 +239,7 @@ An [automated build is setup on the Docker Hub](https://hub.docker.com/r/moul/ss
 ```console
 # Start a server in background
 #   mount `pwd` to persist the sqlite database file
-docker run -p 2222:2222 -d --name=sshportal -v "$(pwd):$(pwd)" -w "$(pwd)" moul/sshportal:v1.3.0
+docker run -p 2222:2222 -d --name=sshportal -v "$(pwd):$(pwd)" -w "$(pwd)" moul/sshportal:v1.9.0

 # check logs (mandatory on first run to get the administrator invite token)
 docker logs -f sshportal
@@ -212,7 +248,7 @@ docker logs -f sshportal
 The easier way to upgrade sshportal is to do the following:

 ```sh
-# we consider you were using the version v1.2.0 and you want to use the new version v1.3.0
+# we consider you were using an old version and you want to use the new version v1.9.0

 # stop and rename the last working container + backup the database
 docker stop sshportal
@@ -220,7 +256,7 @@ docker rename sshportal sshportal_old
 cp sshportal.db sshportal.db.bkp

 # run the new version
-docker run -p 2222:2222 -d --name=sshportal -v "$(pwd):$(pwd)" -w "$(pwd)" moul/sshportal:v1.3.0
+docker run -p 2222:2222 -d --name=sshportal -v "$(pwd):$(pwd)" -w "$(pwd)" moul/sshportal:v1.9.0
 # check the logs for migration or cross-version incompabitility errors
 docker logs -f sshportal
 ```
@@ -243,7 +279,30 @@ docker logs -f sshportal
 Get the latest version using GO.

 ```sh
-go get -u github.com/moul/sshportal
+go get -u moul.io/sshportal
+```
+
+## portal alias (.ssh/config)
+
+Edit your `~/.ssh/config` file (create it first if needed)
+
+```ini
+Host portal
+  User      admin
+  Port      2222       # portal port
+  HostName  127.0.0.1  # portal hostname
+```
+
+```bash
+# you can now run a shell using this:
+ssh portal
+# instead of this:
+ssh localhost -p 2222 -l admin
+
+# or connect to hosts using this:
+ssh hostname@portal
+# instead of this:
+ssh localhost -p 2222 -l hostname
 ```

 ## Backup / Restore
@@ -252,10 +311,10 @@ sshportal embeds built-in backup/restore methods which basically import/export J

 ```sh
 # Backup
-ssh admin@sshportal config backup  > sshportal.bkp
+ssh portal config backup  > sshportal.bkp

 # Restore
-ssh admin@sshportal config restore < sshportal.bkp
+ssh portal config restore < sshportal.bkp
 ```

 This method is particularly useful as it should be resistant against future DB schema changes (expected during development phase).
@@ -269,3 +328,90 @@ sqlite3 sshportal.db .dump > sshportal.sql.bkp
 # or just the immortal cp
 cp sshportal.db sshportal.db.bkp
 ```
+
+## Demo data
+
+The following servers are freely available, without external registration,
+it makes it easier to quickly test `sshportal` without configuring your own servers to accept sshportal connections.
+
+```
+ssh portal host create new@sdf.org
+ssh sdf@portal
+
+ssh portal host create test@whoami.filippo.io
+ssh whoami@portal
+
+ssh portal host create test@chat.shazow.net
+ssh chat@portal
+```
+
+## Healthcheck
+
+By default, `sshportal` will return `OK` to anyone sshing using the `healthcheck` user without checking for authentication.
+
+```console
+$ ssh healthcheck@sshportal
+OK
+$
+```
+
+the `healtcheck` user can be changed using the `healthcheck-user` option.
+
+---
+
+Alternatively, you can run the built-in healthcheck helper (requiring no ssh client nor ssh key):
+
+Usage: `sshportal healthcheck [--addr=host:port] [--wait] [--quiet]
+
+```console
+$ sshportal healthcheck --addr=localhost:2222; echo $?
+$ 0
+```
+
+---
+
+Wait for sshportal to be healthy, then connect
+
+```console
+$ sshportal healthcheck --wait && ssh sshportal -l admin
+config>
+```
+
+## Scaling
+
+`sshportal` is stateless but relies on a database to store configuration and logs.
+
+By default, `sshportal` uses a local [sqlite](https://www.sqlite.org/) database which isn't scalable by design.
+
+You can run multiple instances of `sshportal` sharing a same [MySQL](https://www.mysql.com) database, using `sshportal --db-conn=user:pass@host/dbname?parseTime=true --db-driver=mysql`.
+
+![sshportal cluster with MySQL backend](https://raw.github.com/moul/sshportal/master/.assets/cluster-mysql.svg?sanitize=true)
+
+See [examples/mysql](http://github.com/moul/sshportal/tree/master/examples/mysql).
+
+## Under the hood
+
+* Docker first (used in dev, tests, by the CI and in production)
+* Backed by (see [dep graph](https://godoc.org/github.com/moul/sshportal?import-graph&hide=2)):
+  * SSH
+    * https://github.com/gliderlabs/ssh: SSH server made easy (well-designed golang library to build SSH servers)
+    * https://godoc.org/golang.org/x/crypto/ssh: both client and server SSH protocol and helpers
+  * Database
+    * https://github.com/jinzhu/gorm/: SQL orm
+    * https://github.com/go-gormigrate/gormigrate: Database migration system
+  * Built-in shell
+    * https://github.com/olekukonko/tablewriter: Ascii tables
+    * https://github.com/asaskevich/govalidator: Valide user inputs
+    * https://github.com/dustin/go-humanize: Human-friendly representation of technical data (time ago, bytes, ...)
+    * https://github.com/mgutz/ansi: Terminal color helpers
+    * https://github.com/urfave/cli: CLI flag parsing with subcommands support
+
+![sshportal data model](https://raw.github.com/moul/sshportal/master/.assets/sql-schema.svg?sanitize=true)
+
+## Note
+
+This is totally experimental for now, so please file issues to let me know what you think about it!
+
+
+## License
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fmoul%2Fsshportal.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fmoul%2Fsshportal?ref=badge_large)
--- a/acl.go
+++ b/acl.go
@@ -26,11 +26,11 @@ func CheckACLs(user User, host Host) (string, error) {

 	// deny by default if no shared ACL
 	if len(aclMap) == 0 {
-		return "deny", nil // default action
+		return string(ACLActionDeny), nil // default action
 	}

-	// transofrm map to slice and sort it
-	acls := []*ACL{}
+	// transform map to slice and sort it
+	acls := make([]*ACL, 0, len(aclMap))
 	for _, acl := range aclMap {
 		acls = append(acls, acl)
 	}
--- a/acl_test.go
+++ b/acl_test.go
@@ -15,17 +15,21 @@ func TestCheckACLs(t *testing.T) {
 		// create tmp dir
 		tempDir, err := ioutil.TempDir("", "sshportal")
 		So(err, ShouldBeNil)
-		defer os.RemoveAll(tempDir)
+		defer func() {
+			So(os.RemoveAll(tempDir), ShouldBeNil)
+		}()

 		// create sqlite db
 		db, err := gorm.Open("sqlite3", filepath.Join(tempDir, "sshportal.db"))
+		So(err, ShouldBeNil)
 		db.LogMode(false)
 		So(dbInit(db), ShouldBeNil)

 		// create dummy objects
-		hostGroup, err := FindHostGroupByIdOrName(db, "default")
+		var hostGroup HostGroup
+		err = HostGroupsByIdentifiers(db, []string{"default"}).First(&hostGroup).Error
 		So(err, ShouldBeNil)
-		db.Create(&Host{Groups: []HostGroup{*hostGroup}})
+		db.Create(&Host{Groups: []*HostGroup{&hostGroup}})

 		//. load db
 		var (
@@ -38,6 +42,6 @@ func TestCheckACLs(t *testing.T) {
 		// test
 		action, err := CheckACLs(users[0], hosts[0])
 		So(err, ShouldBeNil)
-		So(action, ShouldEqual, "allow")
+		So(action, ShouldEqual, ACLActionAllow)
 	})
 }
--- a/config.go
+++ b/config.go
@@ -0,0 +1,52 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/urfave/cli"
+)
+
+type configServe struct {
+	aesKey          string
+	dbDriver, dbURL string
+	logsLocation    string
+	bindAddr        string
+	debug, demo     bool
+	idleTimeout     time.Duration
+}
+
+func parseServeConfig(c *cli.Context) (*configServe, error) {
+	ret := &configServe{
+		aesKey:       c.String("aes-key"),
+		dbDriver:     c.String("db-driver"),
+		dbURL:        c.String("db-conn"),
+		bindAddr:     c.String("bind-address"),
+		debug:        c.Bool("debug"),
+		demo:         c.Bool("demo"),
+		logsLocation: c.String("logs-location"),
+		idleTimeout:  c.Duration("idle-timeout"),
+	}
+	switch len(ret.aesKey) {
+	case 0, 16, 24, 32:
+	default:
+		return nil, fmt.Errorf("invalid aes key size, should be 16 or 24, 32")
+	}
+	return ret, nil
+}
+
+func ensureLogDirectory(location string) error {
+	// check for the logdir existence
+	logsLocation, err := os.Stat(location)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return os.MkdirAll(location, os.ModeDir|os.FileMode(0750))
+		}
+		return err
+	}
+	if !logsLocation.IsDir() {
+		return fmt.Errorf("log directory cannot be created")
+	}
+	return nil
+}
--- a/crypto.go
+++ b/crypto.go
@@ -2,11 +2,16 @@ package main

 import (
 	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/rand"
 	"crypto/rsa"
 	"crypto/x509"
+	"encoding/base64"
 	"encoding/pem"
+	"errors"
 	"fmt"
+	"io"
 	"strings"

 	gossh "golang.org/x/crypto/ssh"
@@ -47,3 +52,114 @@ func NewSSHKey(keyType string, length uint) (*SSHKey, error) {

 	return &key, nil
 }
+
+func ImportSSHKey(keyValue string) (*SSHKey, error) {
+	key := SSHKey{
+		Type: "rsa",
+	}
+
+	parsedKey, err := gossh.ParseRawPrivateKey([]byte(keyValue))
+	if err != nil {
+		return nil, err
+	}
+	var privateKey *rsa.PrivateKey
+	var ok bool
+	if privateKey, ok = parsedKey.(*rsa.PrivateKey); !ok {
+		return nil, errors.New("key type not supported")
+	}
+	key.Length = uint(privateKey.PublicKey.N.BitLen())
+	// convert priv key to x509 format
+	var pemKey = &pem.Block{
+		Type:  "RSA PRIVATE KEY",
+		Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
+	}
+	buf := bytes.NewBufferString("")
+	if err = pem.Encode(buf, pemKey); err != nil {
+		return nil, err
+	}
+	key.PrivKey = buf.String()
+
+	// generte authorized-key formatted pubkey output
+	pub, err := gossh.NewPublicKey(&privateKey.PublicKey)
+	if err != nil {
+		return nil, err
+	}
+	key.PubKey = strings.TrimSpace(string(gossh.MarshalAuthorizedKey(pub)))
+
+	return &key, nil
+}
+
+func encrypt(key []byte, text string) (string, error) {
+	plaintext := []byte(text)
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+	ciphertext := make([]byte, aes.BlockSize+len(plaintext))
+	iv := ciphertext[:aes.BlockSize]
+	if _, err := io.ReadFull(rand.Reader, iv); err != nil {
+		return "", err
+	}
+	stream := cipher.NewCFBEncrypter(block, iv)
+	stream.XORKeyStream(ciphertext[aes.BlockSize:], plaintext)
+	return base64.URLEncoding.EncodeToString(ciphertext), nil
+}
+
+func decrypt(key []byte, cryptoText string) (string, error) {
+	ciphertext, _ := base64.URLEncoding.DecodeString(cryptoText)
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+	if len(ciphertext) < aes.BlockSize {
+		return "", fmt.Errorf("ciphertext too short")
+	}
+	iv := ciphertext[:aes.BlockSize]
+	ciphertext = ciphertext[aes.BlockSize:]
+	stream := cipher.NewCFBDecrypter(block, iv)
+	stream.XORKeyStream(ciphertext, ciphertext)
+	return fmt.Sprintf("%s", ciphertext), nil
+}
+
+func safeDecrypt(key []byte, cryptoText string) string {
+	if len(key) == 0 {
+		return cryptoText
+	}
+	out, err := decrypt(key, cryptoText)
+	if err != nil {
+		return cryptoText
+	}
+	return out
+}
+
+func HostEncrypt(aesKey string, host *Host) (err error) {
+	if aesKey == "" {
+		return nil
+	}
+	if host.Password != "" {
+		host.Password, err = encrypt([]byte(aesKey), host.Password)
+	}
+	return
+}
+func HostDecrypt(aesKey string, host *Host) {
+	if aesKey == "" {
+		return
+	}
+	if host.Password != "" {
+		host.Password = safeDecrypt([]byte(aesKey), host.Password)
+	}
+}
+
+func SSHKeyEncrypt(aesKey string, key *SSHKey) (err error) {
+	if aesKey == "" {
+		return nil
+	}
+	key.PrivKey, err = encrypt([]byte(aesKey), key.PrivKey)
+	return
+}
+func SSHKeyDecrypt(aesKey string, key *SSHKey) {
+	if aesKey == "" {
+		return
+	}
+	key.PrivKey = safeDecrypt([]byte(aesKey), key.PrivKey)
+}
--- a/db.go
+++ b/db.go
@@ -1,15 +1,18 @@
 package main

 import (
+	"encoding/json"
 	"fmt"
+	"log"
 	"net/url"
 	"regexp"
+	"strconv"
 	"strings"
 	"time"

 	"github.com/asaskevich/govalidator"
-	"github.com/gliderlabs/ssh"
 	"github.com/jinzhu/gorm"
+	gossh "golang.org/x/crypto/ssh"
 )

 type Config struct {
@@ -21,7 +24,10 @@ type Config struct {
 	HostGroups []*HostGroup `json:"host_groups"`
 	ACLs       []*ACL       `json:"acls"`
 	Settings   []*Setting   `json:"settings"`
-	Date       time.Time    `json:"date"`
+	Events     []*Event     `json:"events"`
+	Sessions   []*Session   `json:"sessions"`
+	// FIXME: add latest migration
+	Date time.Time `json:"date"`
 }

 type Setting struct {
@@ -30,6 +36,7 @@ type Setting struct {
 	Value string `valid:"required"`
 }

+// SSHKey defines a ssh client key (used by sshportal to connect to remote hosts)
 type SSHKey struct {
 	// FIXME: use uuid for ID
 	gorm.Model
@@ -46,23 +53,28 @@ type SSHKey struct {
 type Host struct {
 	// FIXME: use uuid for ID
 	gorm.Model
-	Name        string       `gorm:"size:32" valid:"required,length(1|32),unix_user"`
-	Addr        string       `valid:"required"`
-	User        string       `valid:"optional"`
-	Password    string       `valid:"optional"`
-	SSHKey      *SSHKey      `gorm:"ForeignKey:SSHKeyID"`
-	SSHKeyID    uint         `gorm:"index"`
-	Groups      []*HostGroup `gorm:"many2many:host_host_groups;"`
-	Fingerprint string       `valid:"optional"` // FIXME: replace with hostKey ?
-	Comment     string       `valid:"optional"`
+	Name     string       `gorm:"size:32" valid:"required,length(1|32),unix_user"`
+	Addr     string       `valid:"optional"` // FIXME: to be removed in a future version in favor of URL
+	User     string       `valid:"optional"` // FIXME: to be removed in a future version in favor of URL
+	Password string       `valid:"optional"` // FIXME: to be removed in a future version in favor of URL
+	URL      string       `valid:"optional"`
+	SSHKey   *SSHKey      `gorm:"ForeignKey:SSHKeyID"` // SSHKey used to connect by the client
+	SSHKeyID uint         `gorm:"index"`
+	HostKey  []byte       `sql:"size:10000" valid:"optional"`
+	Groups   []*HostGroup `gorm:"many2many:host_host_groups;"`
+	Comment  string       `valid:"optional"`
+	Hop      *Host
+	HopID    uint
 }

+// UserKey defines a user public key used by sshportal to identify the user
 type UserKey struct {
 	gorm.Model
-	Key     []byte `sql:"size:10000" valid:"required,length(1|10000)"`
-	UserID  uint   ``
-	User    *User  `gorm:"ForeignKey:UserID"`
-	Comment string `valid:"optional"`
+	Key           []byte `sql:"size:10000" valid:"required,length(1|10000)"`
+	AuthorizedKey string `sql:"size:10000" valid:"required,length(1|10000)"`
+	UserID        uint   ``
+	User          *User  `gorm:"ForeignKey:UserID"`
+	Comment       string `valid:"optional"`
 }

 type UserRole struct {
@@ -109,6 +121,51 @@ type ACL struct {
 	Comment     string       `valid:"optional"`
 }

+type Session struct {
+	gorm.Model
+	StoppedAt *time.Time `sql:"index" valid:"optional"`
+	Status    string     `valid:"required"`
+	User      *User      `gorm:"ForeignKey:UserID"`
+	Host      *Host      `gorm:"ForeignKey:HostID"`
+	UserID    uint       `valid:"optional"`
+	HostID    uint       `valid:"optional"`
+	ErrMsg    string     `valid:"optional"`
+	Comment   string     `valid:"optional"`
+}
+
+type Event struct {
+	gorm.Model
+	Author   *User                  `gorm:"ForeignKey:AuthorID"`
+	AuthorID uint                   `valid:"optional"`
+	Domain   string                 `valid:"required"`
+	Action   string                 `valid:"required"`
+	Entity   string                 `valid:"optional"`
+	Args     []byte                 `sql:"size:10000" valid:"optional,length(1|10000)" json:"-"`
+	ArgsMap  map[string]interface{} `gorm:"-" json:"Args"`
+}
+
+type SessionStatus string
+
+const (
+	SessionStatusUnknown SessionStatus = "unknown"
+	SessionStatusActive  SessionStatus = "active"
+	SessionStatusClosed  SessionStatus = "closed"
+)
+
+type ACLAction string
+
+const (
+	ACLActionAllow ACLAction = "allow"
+	ACLActionDeny  ACLAction = "deny"
+)
+
+type BastionScheme string
+
+const (
+	BastionSchemeSSH    BastionScheme = "ssh"
+	BastionSchemeTelnet BastionScheme = "telnet"
+)
+
 func init() {
 	unixUserRegexp := regexp.MustCompile("[a-z_][a-z0-9_-]*")

@@ -121,54 +178,153 @@ func init() {
 	}))
 }

-func RemoteHostFromSession(s ssh.Session, db *gorm.DB) (*Host, error) {
-	var host Host
-	db.Preload("SSHKey").Where("name = ?", s.User()).Find(&host)
-	if host.Name == "" {
-		// FIXME: add available hosts
-		return nil, fmt.Errorf("No such target: %q", s.User())
-	}
-	return &host, nil
-}
+// Host helpers

-func (host *Host) URL() string {
-	return fmt.Sprintf("%s@%s", host.User, host.Addr)
-}
-
-func NewHostFromURL(rawurl string) (*Host, error) {
-	if !strings.Contains(rawurl, "://") {
-		rawurl = "ssh://" + rawurl
+func ParseInputURL(input string) (*url.URL, error) {
+	if !strings.Contains(input, "://") {
+		input = "ssh://" + input
 	}
-	u, err := url.Parse(rawurl)
+	u, err := url.Parse(input)
 	if err != nil {
 		return nil, err
 	}
-	host := Host{Addr: u.Host}
-	if !strings.Contains(host.Addr, ":") {
-		host.Addr += ":22" // add port if not present
-	}
-	host.User = "root" // default username
-	if u.User != nil {
-		password, _ := u.User.Password()
-		host.Password = password
-		host.User = u.User.Username()
-	}
-	return &host, nil
+	return u, nil
+}
+func (host *Host) DialAddr() string {
+	return fmt.Sprintf("%s:%d", host.Hostname(), host.Port())
+}
+func (host *Host) String() string {
+	if host.URL != "" {
+		return host.URL
+	} else if host.Addr != "" { // to be removed in a future version in favor of URL
+		if host.Password != "" {
+			return fmt.Sprintf("ssh://%s:%s@%s", host.User, strings.Repeat("*", 4), host.Addr)
+		}
+		return fmt.Sprintf("ssh://%s@%s", host.User, host.Addr)
+	}
+	return ""
+}
+func (host *Host) Scheme() BastionScheme {
+	if host.URL != "" {
+		u, err := url.Parse(host.URL)
+		if err != nil {
+			return BastionSchemeSSH
+		}
+		return BastionScheme(u.Scheme)
+	} else if host.Addr != "" {
+		return BastionSchemeSSH
+	}
+	return ""
 }
-
 func (host *Host) Hostname() string {
-	return strings.Split(host.Addr, ":")[0]
+	if host.URL != "" {
+		u, err := url.Parse(host.URL)
+		if err != nil {
+			return ""
+		}
+		return u.Hostname()
+	} else if host.Addr != "" { // to be removed in a future version in favor of URL
+		return strings.Split(host.Addr, ":")[0]
+	}
+	return ""
+}
+func (host *Host) Username() string {
+	if host.URL != "" {
+		u, err := url.Parse(host.URL)
+		if err != nil {
+			return "root"
+		}
+		if u.User != nil {
+			return u.User.Username()
+		}
+	} else if host.User != "" { // to be removed in a future version in favor of URL
+		return host.User
+	}
+	return "root"
+}
+func (host *Host) Passwd() string {
+	if host.URL != "" {
+		u, err := url.Parse(host.URL)
+		if err != nil {
+			return ""
+		}
+		if u.User != nil {
+			password, _ := u.User.Password()
+			return password
+		}
+	} else if host.Password != "" { // to be removed in a future version in favor of URL
+		return host.Password
+	}
+	return ""
+}
+func (host *Host) Port() uint64 {
+	var portString string
+	if host.URL != "" {
+		u, err := url.Parse(host.URL)
+		if err != nil {
+			goto defaultPort
+		}
+		portString = u.Port()
+	} else if host.Addr != "" { // to be removed in a future version in favor of URL
+		portString = strings.Split(host.Addr, ":")[1]
+	}
+	if portString != "" {
+		port, err := strconv.ParseUint(portString, 10, 64)
+		if err != nil {
+			goto defaultPort
+		}
+		return port
+	}
+defaultPort:
+	switch host.Scheme() {
+	case BastionSchemeSSH:
+		return 22
+	case BastionSchemeTelnet:
+		return 23
+	default:
+		return 0
+	}
 }
-
-// Host helpers
 func HostsPreload(db *gorm.DB) *gorm.DB {
 	return db.Preload("Groups").Preload("SSHKey")
 }
 func HostsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 	return db.Where("id IN (?)", identifiers).Or("name IN (?)", identifiers)
 }
+func HostByName(db *gorm.DB, name string) (*Host, error) {
+	var host Host
+	db.Preload("SSHKey").Where("name = ?", name).Find(&host)
+	if host.Name == "" {
+		// FIXME: add available hosts
+		return nil, fmt.Errorf("no such target: %q", name)
+	}
+	return &host, nil
+}
+
+func (host *Host) clientConfig(hk gossh.HostKeyCallback) (*gossh.ClientConfig, error) {
+	config := gossh.ClientConfig{
+		User:            host.Username(),
+		HostKeyCallback: hk,
+		Auth:            []gossh.AuthMethod{},
+	}
+	if host.SSHKey != nil {
+		signer, err := gossh.ParsePrivateKey([]byte(host.SSHKey.PrivKey))
+		if err != nil {
+			return nil, err
+		}
+		config.Auth = append(config.Auth, gossh.PublicKeys(signer))
+	}
+	if host.Passwd() != "" {
+		config.Auth = append(config.Auth, gossh.Password(host.Passwd()))
+	}
+	if len(config.Auth) == 0 {
+		return nil, fmt.Errorf("no valid authentication method for host %q", host.Name)
+	}
+	return &config, nil
+}

 // SSHKey helpers
+
 func SSHKeysPreload(db *gorm.DB) *gorm.DB {
 	return db.Preload("Hosts")
 }
@@ -177,6 +333,7 @@ func SSHKeysByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 }

 // HostGroup helpers
+
 func HostGroupsPreload(db *gorm.DB) *gorm.DB {
 	return db.Preload("ACLs").Preload("Hosts")
 }
@@ -184,7 +341,8 @@ func HostGroupsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 	return db.Where("id IN (?)", identifiers).Or("name IN (?)", identifiers)
 }

-// UserGroup heleprs
+// UserGroup helpers
+
 func UserGroupsPreload(db *gorm.DB) *gorm.DB {
 	return db.Preload("ACLs").Preload("Users")
 }
@@ -193,35 +351,32 @@ func UserGroupsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 }

 // User helpers
+
 func UsersPreload(db *gorm.DB) *gorm.DB {
 	return db.Preload("Groups").Preload("Keys").Preload("Roles")
 }
 func UsersByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 	return db.Where("id IN (?)", identifiers).Or("email IN (?)", identifiers).Or("name IN (?)", identifiers)
 }
-func UserHasRole(user User, name string) bool {
-	for _, role := range user.Roles {
+func (u *User) HasRole(name string) bool {
+	for _, role := range u.Roles {
 		if role.Name == name {
 			return true
 		}
 	}
 	return false
 }
-func UserCheckRoles(user User, names []string) error {
-	ok := false
+func (u *User) CheckRoles(names []string) error {
 	for _, name := range names {
-		if UserHasRole(user, name) {
-			ok = true
-			break
+		if u.HasRole(name) {
+			return nil
 		}
 	}
-	if ok {
-		return nil
-	}
 	return fmt.Errorf("you don't have permission to access this feature (requires any of these roles: '%s')", strings.Join(names, "', '"))
 }

 // ACL helpers
+
 func ACLsPreload(db *gorm.DB) *gorm.DB {
 	return db.Preload("UserGroups").Preload("HostGroups")
 }
@@ -230,6 +385,7 @@ func ACLsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 }

 // UserKey helpers
+
 func UserKeysPreload(db *gorm.DB) *gorm.DB {
 	return db.Preload("User")
 }
@@ -238,9 +394,64 @@ func UserKeysByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 }

 // UserRole helpers
-func UserRolesPreload(db *gorm.DB) *gorm.DB {
-	return db.Preload("Users")
-}
+
+//func UserRolesPreload(db *gorm.DB) *gorm.DB {
+//	return db.Preload("Users")
+//}
 func UserRolesByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
 	return db.Where("id IN (?)", identifiers).Or("name IN (?)", identifiers)
 }
+
+// Session helpers
+
+func SessionsPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("User").Preload("Host")
+}
+func SessionsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers)
+}
+
+// Events helpers
+
+func EventsPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("Author")
+}
+func EventsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers)
+}
+
+func NewEvent(domain, action string) *Event {
+	return &Event{
+		Domain:  domain,
+		Action:  action,
+		ArgsMap: map[string]interface{}{},
+	}
+}
+
+func (e *Event) String() string {
+	return fmt.Sprintf("%s %s %s %s", e.Domain, e.Action, e.Entity, string(e.Args))
+}
+
+func (e *Event) Log(db *gorm.DB) {
+	if len(e.ArgsMap) > 0 {
+		var err error
+		if e.Args, err = json.Marshal(e.ArgsMap); err != nil {
+			log.Printf("error: %v", err)
+		}
+	}
+	log.Printf("info: %s", e)
+	if err := db.Create(e).Error; err != nil {
+		log.Printf("warning: %v", err)
+	}
+}
+
+func (e *Event) SetAuthor(user *User) *Event {
+	//e.Author = user
+	e.AuthorID = user.ID
+	return e
+}
+
+func (e *Event) SetArg(name string, value interface{}) *Event {
+	e.ArgsMap[name] = value
+	return e
+}
--- a/dbinit.go
+++ b/dbinit.go
@@ -2,14 +2,23 @@ package main

 import (
 	"fmt"
+	"io/ioutil"
 	"log"
 	"os"
+	"os/user"
+	"strings"
+	"time"

 	"github.com/go-gormigrate/gormigrate"
 	"github.com/jinzhu/gorm"
+	gossh "golang.org/x/crypto/ssh"
 )

 func dbInit(db *gorm.DB) error {
+	log.SetOutput(ioutil.Discard)
+	db.Callback().Delete().Replace("gorm:delete", hardDeleteCallback)
+	log.SetOutput(os.Stderr)
+
 	m := gormigrate.New(db, gormigrate.DefaultOptions, []*gormigrate.Migration{
 		{
 			ID: "1",
@@ -24,8 +33,7 @@ func dbInit(db *gorm.DB) error {
 			Rollback: func(tx *gorm.DB) error {
 				return tx.DropTable("settings").Error
 			},
-		},
-		{
+		}, {
 			ID: "2",
 			Migrate: func(tx *gorm.DB) error {
 				type SSHKey struct {
@@ -152,7 +160,7 @@ func dbInit(db *gorm.DB) error {
 			ID: "9",
 			Migrate: func(tx *gorm.DB) error {
 				db.Model(&Setting{}).RemoveIndex("uix_settings_name")
-				return db.Model(&Setting{}).Where(`"deleted_at" IS NULL`).AddUniqueIndex("uix_settings_name", "name").Error
+				return db.Model(&Setting{}).AddUniqueIndex("uix_settings_name", "name").Error
 			},
 			Rollback: func(tx *gorm.DB) error {
 				return db.Model(&Setting{}).RemoveIndex("uix_settings_name").Error
@@ -161,7 +169,7 @@ func dbInit(db *gorm.DB) error {
 			ID: "10",
 			Migrate: func(tx *gorm.DB) error {
 				db.Model(&SSHKey{}).RemoveIndex("uix_keys_name")
-				return db.Model(&SSHKey{}).Where(`"deleted_at" IS NULL`).AddUniqueIndex("uix_keys_name", "name").Error
+				return db.Model(&SSHKey{}).AddUniqueIndex("uix_keys_name", "name").Error
 			},
 			Rollback: func(tx *gorm.DB) error {
 				return db.Model(&SSHKey{}).RemoveIndex("uix_keys_name").Error
@@ -170,7 +178,7 @@ func dbInit(db *gorm.DB) error {
 			ID: "11",
 			Migrate: func(tx *gorm.DB) error {
 				db.Model(&Host{}).RemoveIndex("uix_hosts_name")
-				return db.Model(&Host{}).Where(`"deleted_at" IS NULL`).AddUniqueIndex("uix_hosts_name", "name").Error
+				return db.Model(&Host{}).AddUniqueIndex("uix_hosts_name", "name").Error
 			},
 			Rollback: func(tx *gorm.DB) error {
 				return db.Model(&Host{}).RemoveIndex("uix_hosts_name").Error
@@ -179,7 +187,7 @@ func dbInit(db *gorm.DB) error {
 			ID: "12",
 			Migrate: func(tx *gorm.DB) error {
 				db.Model(&User{}).RemoveIndex("uix_users_name")
-				return db.Model(&User{}).Where(`"deleted_at" IS NULL`).AddUniqueIndex("uix_users_name", "name").Error
+				return db.Model(&User{}).AddUniqueIndex("uix_users_name", "name").Error
 			},
 			Rollback: func(tx *gorm.DB) error {
 				return db.Model(&User{}).RemoveIndex("uix_users_name").Error
@@ -188,7 +196,7 @@ func dbInit(db *gorm.DB) error {
 			ID: "13",
 			Migrate: func(tx *gorm.DB) error {
 				db.Model(&UserGroup{}).RemoveIndex("uix_usergroups_name")
-				return db.Model(&UserGroup{}).Where(`"deleted_at" IS NULL`).AddUniqueIndex("uix_usergroups_name", "name").Error
+				return db.Model(&UserGroup{}).AddUniqueIndex("uix_usergroups_name", "name").Error
 			},
 			Rollback: func(tx *gorm.DB) error {
 				return db.Model(&UserGroup{}).RemoveIndex("uix_usergroups_name").Error
@@ -197,7 +205,7 @@ func dbInit(db *gorm.DB) error {
 			ID: "14",
 			Migrate: func(tx *gorm.DB) error {
 				db.Model(&HostGroup{}).RemoveIndex("uix_hostgroups_name")
-				return db.Model(&HostGroup{}).Where(`"deleted_at" IS NULL`).AddUniqueIndex("uix_hostgroups_name", "name").Error
+				return db.Model(&HostGroup{}).AddUniqueIndex("uix_hostgroups_name", "name").Error
 			},
 			Rollback: func(tx *gorm.DB) error {
 				return db.Model(&HostGroup{}).RemoveIndex("uix_hostgroups_name").Error
@@ -292,11 +300,194 @@ func dbInit(db *gorm.DB) error {
 			Rollback: func(tx *gorm.DB) error {
 				return tx.Where("name = ?", "listhosts").Delete(&UserRole{}).Error
 			},
+		}, {
+			ID: "21",
+			Migrate: func(tx *gorm.DB) error {
+				type Session struct {
+					gorm.Model
+					StoppedAt time.Time `valid:"optional"`
+					Status    string    `valid:"required"`
+					User      *User     `gorm:"ForeignKey:UserID"`
+					Host      *Host     `gorm:"ForeignKey:HostID"`
+					UserID    uint      `valid:"optional"`
+					HostID    uint      `valid:"optional"`
+					ErrMsg    string    `valid:"optional"`
+					Comment   string    `valid:"optional"`
+				}
+				return tx.AutoMigrate(&Session{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("sessions").Error
+			},
+		}, {
+			ID: "22",
+			Migrate: func(tx *gorm.DB) error {
+				type Event struct {
+					gorm.Model
+					Author   *User  `gorm:"ForeignKey:AuthorID"`
+					AuthorID uint   `valid:"optional"`
+					Domain   string `valid:"required"`
+					Action   string `valid:"required"`
+					Entity   string `valid:"optional"`
+					Args     []byte `sql:"size:10000" valid:"optional,length(1|10000)"`
+				}
+				return tx.AutoMigrate(&Event{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("events").Error
+			},
+		}, {
+			ID: "23",
+			Migrate: func(tx *gorm.DB) error {
+				type UserKey struct {
+					gorm.Model
+					Key           []byte `sql:"size:10000" valid:"required,length(1|10000)"`
+					AuthorizedKey string `sql:"size:10000" valid:"required,length(1|10000)"`
+					UserID        uint   ``
+					User          *User  `gorm:"ForeignKey:UserID"`
+					Comment       string `valid:"optional"`
+				}
+				return tx.AutoMigrate(&UserKey{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "24",
+			Migrate: func(tx *gorm.DB) error {
+				var userKeys []UserKey
+				if err := db.Find(&userKeys).Error; err != nil {
+					return err
+				}
+
+				for _, userKey := range userKeys {
+					key, err := gossh.ParsePublicKey(userKey.Key)
+					if err != nil {
+						return err
+					}
+					userKey.AuthorizedKey = string(gossh.MarshalAuthorizedKey(key))
+					if err := db.Model(&userKey).Updates(&userKey).Error; err != nil {
+						return err
+					}
+				}
+				return nil
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "25",
+			Migrate: func(tx *gorm.DB) error {
+				type Host struct {
+					// FIXME: use uuid for ID
+					gorm.Model
+					Name        string       `gorm:"size:32" valid:"required,length(1|32),unix_user"`
+					Addr        string       `valid:"required"`
+					User        string       `valid:"optional"`
+					Password    string       `valid:"optional"`
+					SSHKey      *SSHKey      `gorm:"ForeignKey:SSHKeyID"` // SSHKey used to connect by the client
+					SSHKeyID    uint         `gorm:"index"`
+					HostKey     []byte       `sql:"size:10000" valid:"optional"`
+					Groups      []*HostGroup `gorm:"many2many:host_host_groups;"`
+					Fingerprint string       `valid:"optional"` // FIXME: replace with hostKey ?
+					Comment     string       `valid:"optional"`
+				}
+				return tx.AutoMigrate(&Host{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "26",
+			Migrate: func(tx *gorm.DB) error {
+				type Session struct {
+					gorm.Model
+					StoppedAt *time.Time `sql:"index" valid:"optional"`
+					Status    string     `valid:"required"`
+					User      *User      `gorm:"ForeignKey:UserID"`
+					Host      *Host      `gorm:"ForeignKey:HostID"`
+					UserID    uint       `valid:"optional"`
+					HostID    uint       `valid:"optional"`
+					ErrMsg    string     `valid:"optional"`
+					Comment   string     `valid:"optional"`
+				}
+				return tx.AutoMigrate(&Session{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "27",
+			Migrate: func(tx *gorm.DB) error {
+				var sessions []Session
+				if err := db.Find(&sessions).Error; err != nil {
+					return err
+				}
+
+				for _, session := range sessions {
+					if session.StoppedAt != nil && session.StoppedAt.IsZero() {
+						if err := db.Model(&session).Updates(map[string]interface{}{"stopped_at": nil}).Error; err != nil {
+							return err
+						}
+					}
+				}
+				return nil
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "28",
+			Migrate: func(tx *gorm.DB) error {
+				type Host struct {
+					// FIXME: use uuid for ID
+					gorm.Model
+					Name     string `gorm:"size:32"`
+					Addr     string
+					User     string
+					Password string
+					URL      string
+					SSHKey   *SSHKey      `gorm:"ForeignKey:SSHKeyID"`
+					SSHKeyID uint         `gorm:"index"`
+					HostKey  []byte       `sql:"size:10000"`
+					Groups   []*HostGroup `gorm:"many2many:host_host_groups;"`
+					Comment  string
+				}
+				return tx.AutoMigrate(&Host{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "29",
+			Migrate: func(tx *gorm.DB) error {
+				type Host struct {
+					// FIXME: use uuid for ID
+					gorm.Model
+					Name     string `gorm:"size:32"`
+					Addr     string
+					User     string
+					Password string
+					URL      string
+					SSHKey   *SSHKey      `gorm:"ForeignKey:SSHKeyID"`
+					SSHKeyID uint         `gorm:"index"`
+					HostKey  []byte       `sql:"size:10000"`
+					Groups   []*HostGroup `gorm:"many2many:host_host_groups;"`
+					Comment  string
+					Hop      *Host
+					HopID    uint
+				}
+				return tx.AutoMigrate(&Host{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
 		},
 	})
 	if err := m.Migrate(); err != nil {
 		return err
 	}
+	NewEvent("system", "migrated").Log(db)

 	// create default ssh key
 	var count uint
@@ -368,10 +559,12 @@ func dbInit(db *gorm.DB) error {
 	// create admin user
 	var defaultUserGroup UserGroup
 	db.Where("name = ?", "default").First(&defaultUserGroup)
-	db.Table("users").Count(&count)
+	if err := db.Table("users").Count(&count).Error; err != nil {
+		return err
+	}
 	if count == 0 {
 		// if no admin, create an account for the first connection
-		inviteToken := RandStringBytes(16)
+		inviteToken := randStringBytes(16)
 		if os.Getenv("SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN") != "" {
 			inviteToken = os.Getenv("SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN")
 		}
@@ -379,9 +572,20 @@ func dbInit(db *gorm.DB) error {
 		if err := db.Where("name = ?", "admin").First(&adminRole).Error; err != nil {
 			return err
 		}
+		var username string
+		if currentUser, err := user.Current(); err == nil {
+			username = currentUser.Username
+		}
+		if username == "" {
+			username = os.Getenv("USER")
+		}
+		username = strings.ToLower(username)
+		if username == "" {
+			username = "admin" // fallback username
+		}
 		user := User{
-			Name:        "Administrator",
-			Email:       "admin@sshportal",
+			Name:        username,
+			Email:       fmt.Sprintf("%s@localhost", username),
 			Comment:     "created by sshportal",
 			Roles:       []*UserRole{&adminRole},
 			InviteToken: inviteToken,
@@ -390,7 +594,7 @@ func dbInit(db *gorm.DB) error {
 		if err := db.Create(&user).Error; err != nil {
 			return err
 		}
-		log.Printf("Admin user created, use the user 'invite:%s' to associate a public key with this account", user.InviteToken)
+		log.Printf("info 'admin' user created, use the user 'invite:%s' to associate a public key with this account", user.InviteToken)
 	}

 	// create host ssh key
@@ -408,29 +612,34 @@ func dbInit(db *gorm.DB) error {
 			return err
 		}
 	}
-	return nil
+
+	// close unclosed connections
+	return db.Table("sessions").Where("status = ?", "active").Updates(&Session{
+		Status: string(SessionStatusClosed),
+		ErrMsg: "sshportal was halted while the connection was still active",
+	}).Error
 }

-func dbDemo(db *gorm.DB) error {
-	var hostGroup HostGroup
-	if err := HostGroupsByIdentifiers(db, []string{"default"}).First(&hostGroup).Error; err != nil {
-		return err
+func hardDeleteCallback(scope *gorm.Scope) {
+	if !scope.HasError() {
+		var extraOption string
+		if str, ok := scope.Get("gorm:delete_option"); ok {
+			extraOption = fmt.Sprint(str)
+		}
+
+		/* #nosec */
+		scope.Raw(fmt.Sprintf(
+			"DELETE FROM %v%v%v",
+			scope.QuotedTableName(),
+			addExtraSpaceIfExist(scope.CombinedConditionSql()),
+			addExtraSpaceIfExist(extraOption),
+		)).Exec()
 	}
-
-	var key SSHKey
-	if err := SSHKeysByIdentifiers(db, []string{"default"}).First(&key).Error; err != nil {
-		return err
-	}
-
-	var (
-		host1 = Host{Name: "sdf", Addr: "sdf.org:22", User: "new", SSHKeyID: key.ID, Groups: []*HostGroup{&hostGroup}}
-		host2 = Host{Name: "whoami", Addr: "whoami.filippo.io:22", User: "test", SSHKeyID: key.ID, Groups: []*HostGroup{&hostGroup}}
-		host3 = Host{Name: "ssh-chat", Addr: "chat.shazow.net:22", User: "test", SSHKeyID: key.ID, Fingerprint: "MD5:e5:d5:d1:75:90:38:42:f6:c7:03:d7:d0:56:7d:6a:db", Groups: []*HostGroup{&hostGroup}}
-	)
-
-	// FIXME: check if hosts exist to avoid `UNIQUE constraint` error
-	db.FirstOrCreate(&host1)
-	db.FirstOrCreate(&host2)
-	db.FirstOrCreate(&host3)
-	return nil
+}
+
+func addExtraSpaceIfExist(str string) string {
+	if str != "" {
+		return " " + str
+	}
+	return ""
 }
--- a/examples/homebrew/sshportal.rb
+++ b/examples/homebrew/sshportal.rb
@@ -0,0 +1,24 @@
+require "language/go"
+
+class Sshportal < Formula
+  desc "sshportal: simple, fun and transparent SSH bastion"
+  homepage "https://github.com/moul/sshportal"
+  url "https://github.com/moul/sshportal/archive/v1.7.1.tar.gz"
+  sha256 "4611ae2f30cc595b2fb789bd0c92550533db6d4b63c638dd78cf85517b6aeaf0"
+  head "https://github.com/moul/sshportal.git"
+
+  depends_on "go" => :build
+
+  def install
+    ENV["GOPATH"] = buildpath
+    ENV["GOBIN"] = buildpath
+    (buildpath/"src/github.com/moul/sshportal").install Dir["*"]
+
+    system "go", "build", "-o", "#{bin}/sshportal", "-v", "github.com/moul/sshportal"
+  end
+
+  test do
+    output = shell_output(bin/"sshportal --version")
+    assert output.include? "sshportal version "
+  end
+end
--- a/examples/integration/Dockerfile
+++ b/examples/integration/Dockerfile
@@ -0,0 +1,4 @@
+FROM            occitech/ssh-client
+ENTRYPOINT      ["/bin/sh", "-c"]
+CMD             ["/integration/_client.sh"]
+COPY            . /integration
--- a/examples/integration/Makefile
+++ b/examples/integration/Makefile
@@ -0,0 +1,7 @@
+run:
+	docker-compose down
+	docker-compose up -d sshportal
+	docker-compose build client
+	docker-compose exec sshportal /bin/sshportal healthcheck --wait --quiet
+	docker-compose run client /integration/_client.sh
+	docker-compose down
--- a/examples/integration/_client.sh
+++ b/examples/integration/_client.sh
@@ -0,0 +1,79 @@
+#!/bin/sh -e
+
+mkdir -p ~/.ssh
+cp /integration/client_test_rsa ~/.ssh/id_rsa
+chmod -R 700 ~/.ssh
+cat >~/.ssh/config <<EOF
+Host sshportal
+    Port 2222
+    HostName sshportal
+
+Host testserver
+    Port 2222
+    HostName testserver
+
+Host *
+    StrictHostKeyChecking no
+    ControlMaster auto
+    SendEnv TEST_*
+
+EOF
+
+set -x
+
+# login
+ssh sshportal -l invite:integration
+
+# hostgroup/usergroup/acl
+ssh sshportal -l admin hostgroup create
+ssh sshportal -l admin hostgroup create --name=hg1
+ssh sshportal -l admin hostgroup create --name=hg2 --comment=test
+ssh sshportal -l admin usergroup inspect hg1 hg2
+ssh sshportal -l admin hostgroup ls
+
+ssh sshportal -l admin usergroup create
+ssh sshportal -l admin usergroup create --name=ug1
+ssh sshportal -l admin usergroup create --name=ug2 --comment=test
+ssh sshportal -l admin usergroup inspect ug1 ug2
+ssh sshportal -l admin usergroup ls
+
+ssh sshportal -l admin acl create --ug=ug1 --ug=ug2 --hg=hg1 --hg=hg2 --comment=test --action=allow --weight=42
+ssh sshportal -l admin acl inspect 2
+ssh sshportal -l admin acl ls
+
+# basic host create
+ssh sshportal -l admin host create bob@example.org:1234
+ssh sshportal -l admin host create test42
+ssh sshportal -l admin host create --name=testtest --comment=test --password=test test@test.test
+ssh sshportal -l admin host create --group=hg1 --group=hg2 hostwithgroups.org
+ssh sshportal -l admin host inspect example test42 testtest hostwithgroups
+ssh sshportal -l admin host update --assign-group=hg1 test42
+ssh sshportal -l admin host update --unassign-group=hg1 test42
+ssh sshportal -l admin host update --assign-group=hg1 test42
+ssh sshportal -l admin host update --assign-group=hg2 --unassign-group=hg2 test42
+ssh sshportal -l admin host ls
+
+# backup/restore
+ssh sshportal -l admin config backup --indent --ignore-events > backup-1
+ssh sshportal -l admin config restore --confirm < backup-1
+ssh sshportal -l admin config backup --indent --ignore-events  > backup-2
+(
+    cat backup-1 | grep -v '"date":' | grep -v 'tedAt":' > backup-1.clean
+    cat backup-2 | grep -v '"date":' | grep -v 'tedAt":' > backup-2.clean
+    set -xe
+    diff backup-1.clean backup-2.clean
+)
+
+if [ "$CIRCLECI" = "true" ]; then
+    echo "Strage behavior with cross-container communication on CircleCI, skipping some tests..."
+else
+    # bastion
+    ssh sshportal -l admin host create --name=testserver toto@testserver:2222
+    out="$(ssh sshportal -l testserver echo hello | head -n 1)"
+    test "$out" = '{"User":"toto","Environ":null,"Command":["echo","hello"]}'
+
+    out="$(TEST_A=1 TEST_B=2 TEST_C=3 TEST_D=4 TEST_E=5 TEST_F=6 TEST_G=7 TEST_H=8 TEST_I=9 ssh sshportal -l testserver echo hello | head -n 1)"
+    test "$out" = '{"User":"toto","Environ":["TEST_A=1","TEST_B=2","TEST_C=3","TEST_D=4","TEST_E=5","TEST_F=6","TEST_G=7","TEST_H=8","TEST_I=9"],"Command":["echo","hello"]}'
+fi
+
+# TODO: test more cases (forwards, scp, sftp, interactive, pty, stdin, exit code, ...)
--- a/examples/integration/client_test_rsa
+++ b/examples/integration/client_test_rsa
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpQIBAAKCAQEAxV0ds/oMuOw9QVLFgxaM0Js2IdJKiYLnmKq96IuZ/wMqMea3
+qi1UfNBPUQ2CojwbJGTea8cA9J1Et+a6v1mL66YG8zyxmhdlKHm2KOMnUXSfWPNg
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+/ICQZUI9ekyGJZ/SKZKwxDe7oeV+vFsus/9FWC5wrp45Xm4kEUwsBr4bWvuNpVOq
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+zLFpZZ3YcoXiqYMb541dlljKwPt8673hVMkCi6uZFSkFBHY0YpgDPPtsxDOMjsHL
+7ACzKq+cHlmUimdbcViz4S8CgYEAr2+sVYaHixsRtVNA9PxiLQIgR4rx8zEXw/hH
+m5hyiUV0vaiDlewfEzMab0CKNK/JGx6vZQdUWbsxq7+Re8o9JDDlY0b854T+CzIO
+x/iQj+XMzBPQBtXvt9sXSsRo0Uft7B6qbIeyhSCxDibFVWjAIzh70N1P8BkdYsyr
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+DRZ6nfC3iLnEYKK+KN/I3NY7JcSjHmW6V8WtrCYAi2D5Ns05XJAG6t8=
+-----END RSA PRIVATE KEY-----
--- a/examples/integration/docker-compose.yml
+++ b/examples/integration/docker-compose.yml
@@ -0,0 +1,27 @@
+version: '3.0'
+
+services:
+  sshportal:
+    image: moul/sshportal
+    environment:
+      - SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN=integration
+    command: server --debug
+    depends_on:
+      - testserver
+    ports:
+      - 2222
+
+  testserver:
+    image: moul/sshportal
+    command: _test_server
+    ports:
+      - 2222
+
+  client:
+    build: .
+    depends_on:
+      - sshportal
+      - testserver
+    #volumes:
+    #  - .:/integration
+    tty: true
--- a/examples/integration/test.sh
+++ b/examples/integration/test.sh
@@ -1,82 +0,0 @@
-#!/bin/sh -e
-# Setup a new sshportal and performs some checks
-
-PORT=${PORT:-2222}
-SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN=integration
-
-# tempdir
-WORK_DIR=`mktemp -d`
-if [[ ! "$WORK_DIR" || ! -d "$WORK_DIR" ]]; then
-  echo "Could not create temp dir"
-  exit 1
-fi
-cd "${WORK_DIR}"
-
-# pre cleanup
-docker_cleanup() {
-    ( set -x
-      docker rm -f -v sshportal-integration 2>/dev/null >/dev/null || true
-    )
-}
-tempdir_cleanup() {
-    rm -rf "${WORK_DIR}"
-}
-docker_cleanup
-trap tempdir_cleanup EXIT
-
-# start server
-( set -xe;
-  docker run \
-       -d \
-       -e SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN=${SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN} \
-       --name=sshportal-integration \
-       -p${PORT}:2222 \
-       moul/sshportal --debug
-)
-while ! nc -z localhost ${PORT}; do
-    sleep 1
-done
-sleep 3
-
-# integration suite
-xssh() {
-    set -e
-    echo "+ ssh {sshportal} $@" >&2
-    ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no localhost -p ${PORT} $@
-}
-# login
-xssh -l invite:integration
-
-# hostgroup/usergroup/acl
-xssh -l admin hostgroup create
-xssh -l admin hostgroup create --name=hg1
-xssh -l admin hostgroup create --name=hg2 --comment=test
-xssh -l admin usergroup inspect hg1 hg2
-xssh -l admin hostgroup ls
-
-xssh -l admin usergroup create
-xssh -l admin usergroup create --name=ug1
-xssh -l admin usergroup create --name=ug2 --comment=test
-xssh -l admin usergroup inspect ug1 ug2
-xssh -l admin usergroup ls
-
-xssh -l admin acl create --ug=ug1 --ug=ug2 --hg=hg1 --hg=hg2 --comment=test --action=allow --weight=42
-xssh -l admin acl inspect 2
-xssh -l admin acl ls
-
-# basic host create
-xssh -l admin host create bob@example.org:1234
-xssh -l admin host create test42
-xssh -l admin host create --name=testtest --comment=test --password=test test@test.test
-xssh -l admin host create --group=hg1 --group=hg2 hostwithgroups.org
-xssh -l admin host inspect example test42 testtest hostwithgroups
-xssh -l admin host ls
-
-# backup/restore
-xssh -l admin config backup --indent > backup-1
-xssh -l admin config restore --confirm < backup-1
-xssh -l admin config backup --indent > backup-2
-diff <(cat backup-1 | grep -v '"date":') <(cat backup-2 | grep -v '"date":')
-
-# post cleanup
-#cleanup
--- a/examples/mysql/docker-compose.yml
+++ b/examples/mysql/docker-compose.yml
@@ -4,12 +4,16 @@ services:
  sshportal:
    build: ../..
    restart: unless-stopped
+    environment:
+      SSHPORTAL_DB_DRIVER: mysql
+      SSHPORTAL_DATABASE_URL: "root:root@tcp(mysql:3306)/db?charset=utf8&parseTime=true&loc=Local"
+      SSHPORTAL_DEBUG: 1
    depends_on:
      mysql:
        condition: service_healthy
    links:
      - mysql
-    command: --db-driver=mysql --debug --db-conn="root:root@tcp(mysql:3306)/db?charset=utf8&parseTime=true&loc=Local"
+    command: server
    ports:
      - 2222:2222

--- a/go.mod
+++ b/go.mod
@@ -0,0 +1,47 @@
+module moul.io/sshportal
+
+require (
+	cloud.google.com/go v0.33.1 // indirect
+	github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239
+	github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/denisenkom/go-mssqldb v0.0.0-20181014144952-4e0d7dc8888f // indirect
+	github.com/docker/docker v1.13.1 // indirect
+	github.com/dustin/go-humanize v1.0.0
+	github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 // indirect
+	github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
+	github.com/gliderlabs/ssh v0.1.1 // indirect
+	github.com/go-gormigrate/gormigrate v1.2.1
+	github.com/go-sql-driver/mysql v1.4.1 // indirect
+	github.com/google/go-cmp v0.2.0 // indirect
+	github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e // indirect
+	github.com/jinzhu/gorm v1.9.1
+	github.com/jinzhu/inflection v0.0.0-20180308033659-04140366298a // indirect
+	github.com/jinzhu/now v0.0.0-20181116074157-8ec929ed50c3 // indirect
+	github.com/joho/godotenv v1.3.0 // indirect
+	github.com/jtolds/gls v4.2.1+incompatible // indirect
+	github.com/kr/pty v1.1.3
+	github.com/lib/pq v1.0.0 // indirect
+	github.com/mattn/go-colorable v0.0.9 // indirect
+	github.com/mattn/go-isatty v0.0.4 // indirect
+	github.com/mattn/go-runewidth v0.0.3 // indirect
+	github.com/mattn/go-sqlite3 v1.10.0 // indirect
+	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b
+	github.com/moby/moby v1.13.1
+	github.com/moul/ssh v0.1.1-0.20181116135657-8b3cdd49b6d2
+	github.com/olekukonko/tablewriter v0.0.1
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/reiver/go-oi v0.0.0-20160325061615-431c83978379
+	github.com/reiver/go-telnet v0.0.0-20180421082511-9ff0b2ab096e
+	github.com/sabban/bastion v0.0.0-20180110125408-b9d3c9b1f4d3
+	github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d // indirect
+	github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c
+	github.com/spf13/cobra v0.0.3 // indirect
+	github.com/spf13/pflag v1.0.3 // indirect
+	github.com/urfave/cli v1.20.0
+	golang.org/x/crypto v0.0.0-20181112202954-3d3f9f413869
+	golang.org/x/net v0.0.0-20181114220301-adae6a3d119a // indirect
+	golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b // indirect
+	google.golang.org/appengine v1.3.0 // indirect
+	gopkg.in/stretchr/testify.v1 v1.2.2 // indirect
+)
--- a/go.sum
+++ b/go.sum
@@ -0,0 +1,100 @@
+cloud.google.com/go v0.33.1 h1:fmJQWZ1w9PGkHR1YL/P7HloDvqlmKQ4Vpb7PC2e+aCk=
+cloud.google.com/go v0.33.1/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
+github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf h1:eg0MeVzsP1G42dRafH3vf+al2vQIJU0YHX+1Tw87oco=
+github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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+golang.org/x/crypto v0.0.0-20181112202954-3d3f9f413869/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+google.golang.org/appengine v1.3.0 h1:FBSsiFRMz3LBeXIomRnVzrQwSDj4ibvcRexLG0LZGQk=
+google.golang.org/appengine v1.3.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+gopkg.in/stretchr/testify.v1 v1.2.2 h1:yhQC6Uy5CqibAIlk1wlusa/MJ3iAN49/BsR/dCCKz3M=
+gopkg.in/stretchr/testify.v1 v1.2.2/go.mod h1:QI5V/q6UbPmuhtm10CaFZxED9NreB8PnFYN9JcR6TxU=
--- a/healthcheck.go
+++ b/healthcheck.go
@@ -0,0 +1,73 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/urfave/cli"
+	gossh "golang.org/x/crypto/ssh"
+)
+
+// perform a healthcheck test without requiring an ssh client or an ssh key (used for Docker's HEALTHCHECK)
+func healthcheck(addr string, wait, quiet bool) error {
+	cfg := gossh.ClientConfig{
+		User:            "healthcheck",
+		HostKeyCallback: func(hostname string, remote net.Addr, key gossh.PublicKey) error { return nil },
+		Auth:            []gossh.AuthMethod{gossh.Password("healthcheck")},
+	}
+
+	if wait {
+		for {
+			if err := healthcheckOnce(addr, cfg, quiet); err != nil {
+				if !quiet {
+					log.Printf("error: %v", err)
+				}
+				time.Sleep(time.Second)
+				continue
+			}
+			return nil
+		}
+	}
+
+	if err := healthcheckOnce(addr, cfg, quiet); err != nil {
+		if quiet {
+			return cli.NewExitError("", 1)
+		}
+		return err
+	}
+	return nil
+}
+
+func healthcheckOnce(addr string, config gossh.ClientConfig, quiet bool) error {
+	client, err := gossh.Dial("tcp", addr, &config)
+	if err != nil {
+		return err
+	}
+
+	session, err := client.NewSession()
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err := session.Close(); err != nil {
+			if !quiet {
+				log.Printf("failed to close session: %v", err)
+			}
+		}
+	}()
+
+	var b bytes.Buffer
+	session.Stdout = &b
+	if err := session.Run(""); err != nil {
+		return err
+	}
+	stdout := strings.TrimSpace(b.String())
+	if stdout != "OK" {
+		return fmt.Errorf("invalid stdout: %q expected 'OK'", stdout)
+	}
+	return nil
+}
--- a/hidden.go
+++ b/hidden.go
@@ -0,0 +1,80 @@
+// +build !windows
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"os/exec"
+	"syscall"
+	"unsafe"
+
+	"github.com/kr/pty"
+	"github.com/moul/ssh"
+	"github.com/urfave/cli"
+)
+
+// testServer is an hidden handler used for integration tests
+func testServer(c *cli.Context) error {
+	ssh.Handle(func(s ssh.Session) {
+		helloMsg := struct {
+			User    string
+			Environ []string
+			Command []string
+		}{
+			User:    s.User(),
+			Environ: s.Environ(),
+			Command: s.Command(),
+		}
+
+		if err := json.NewEncoder(s).Encode(&helloMsg); err != nil {
+			log.Fatalf("failed to write helloMsg: %v", err)
+		}
+		cmd := exec.Command(s.Command()[0], s.Command()[1:]...) // #nosec
+		if s.Command() == nil {
+			cmd = exec.Command("/bin/sh") // #nosec
+		}
+		ptyReq, winCh, isPty := s.Pty()
+		var cmdErr error
+		if isPty {
+			cmd.Env = append(cmd.Env, fmt.Sprintf("TERM=%s", ptyReq.Term))
+			f, err := pty.Start(cmd)
+			if err != nil {
+				fmt.Fprintf(s, "failed to run command: %v\n", err) // #nosec
+				_ = s.Exit(1)                                      // #nosec
+				return
+			}
+			go func() {
+				for win := range winCh {
+					_, _, _ = syscall.Syscall(syscall.SYS_IOCTL, f.Fd(), uintptr(syscall.TIOCSWINSZ),
+						uintptr(unsafe.Pointer(&struct{ h, w, x, y uint16 }{uint16(win.Height), uint16(win.Width), 0, 0}))) // #nosec
+				}
+			}()
+			go func() {
+				// stdin
+				_, _ = io.Copy(f, s) // #nosec
+			}()
+			// stdout
+			_, _ = io.Copy(s, f) // #nosec
+			cmdErr = cmd.Wait()
+		} else {
+			//cmd.Stdin = s
+			cmd.Stdout = s
+			cmd.Stderr = s
+			cmdErr = cmd.Run()
+		}
+
+		if cmdErr != nil {
+			if exitError, ok := cmdErr.(*exec.ExitError); ok {
+				_ = s.Exit(exitError.Sys().(syscall.WaitStatus).ExitStatus()) // #nosec
+				return
+			}
+		}
+		_ = s.Exit(cmd.ProcessState.Sys().(syscall.WaitStatus).ExitStatus()) // #nosec
+	})
+
+	log.Println("starting ssh server on port 2222...")
+	return ssh.ListenAndServe(":2222", nil)
+}
--- a/main.go
+++ b/main.go
@@ -1,40 +1,32 @@
-package main
+package main // import "moul.io/sshportal"

 import (
-	"errors"
 	"fmt"
 	"log"
+	"math"
 	"math/rand"
+	"net"
 	"os"
 	"path"
-	"strings"
 	"time"

-	"github.com/gliderlabs/ssh"
 	"github.com/jinzhu/gorm"
 	_ "github.com/jinzhu/gorm/dialects/mysql"
 	_ "github.com/jinzhu/gorm/dialects/sqlite"
+	"github.com/moul/ssh"
 	"github.com/urfave/cli"
 	gossh "golang.org/x/crypto/ssh"
 )

 var (
-	// VERSION should be updated by hand at each release
-	VERSION = "1.3.0"
-	// GIT_TAG will be overwritten automatically by the build system
-	GIT_TAG string
-	// GIT_SHA will be overwritten automatically by the build system
-	GIT_SHA string
-	// GIT_BRANCH will be overwritten automatically by the build system
-	GIT_BRANCH string
-)
-
-type sshportalContextKey string
-
-var (
-	userContextKey    = sshportalContextKey("user")
-	messageContextKey = sshportalContextKey("message")
-	errorContextKey   = sshportalContextKey("error")
+	// Version should be updated by hand at each release
+	Version = "1.9.0+dev"
+	// GitTag will be overwritten automatically by the build system
+	GitTag string
+	// GitSha will be overwritten automatically by the build system
+	GitSha string
+	// GitBranch will be overwritten automatically by the build system
+	GitBranch string
 )

 func main() {
@@ -43,194 +35,167 @@ func main() {
 	app := cli.NewApp()
 	app.Name = path.Base(os.Args[0])
 	app.Author = "Manfred Touron"
-	app.Version = VERSION + " (" + GIT_SHA + ")"
-	app.Email = "https://github.com/moul/sshportal"
-	app.Flags = []cli.Flag{
-		cli.StringFlag{
-			Name:   "bind-address, b",
-			EnvVar: "SSHPORTAL_BIND",
-			Value:  ":2222",
-			Usage:  "SSH server bind address",
-		},
-		cli.BoolFlag{
-			Name:  "demo",
-			Usage: "*unsafe* - demo mode: accept all connections",
-		},
-		/*cli.StringFlag{
-			Name:  "db-driver",
-			Value: "sqlite3",
-			Usage: "GORM driver (sqlite3)",
-		},*/
-		cli.StringFlag{
-			Name:  "db-conn",
-			Value: "./sshportal.db",
-			Usage: "GORM connection string",
-		},
-		cli.BoolFlag{
-			Name:  "debug, D",
-			Usage: "Display debug information",
-		},
-		cli.StringFlag{
-			Name:  "config-user",
-			Usage: "SSH user that spawns a configuration shell",
-			Value: "admin",
+	app.Version = Version + " (" + GitSha + ")"
+	app.Email = "https://moul.io/sshportal"
+	app.Commands = []cli.Command{
+		{
+			Name:  "server",
+			Usage: "Start sshportal server",
+			Action: func(c *cli.Context) error {
+				if err := ensureLogDirectory(c.String("logs-location")); err != nil {
+					return err
+				}
+				cfg, err := parseServeConfig(c)
+				if err != nil {
+					return err
+				}
+				return server(cfg)
+			},
+			Flags: []cli.Flag{
+				cli.StringFlag{
+					Name:   "bind-address, b",
+					EnvVar: "SSHPORTAL_BIND",
+					Value:  ":2222",
+					Usage:  "SSH server bind address",
+				},
+				cli.StringFlag{
+					Name:   "db-driver",
+					EnvVar: "SSHPORTAL_DB_DRIVER",
+					Value:  "sqlite3",
+					Usage:  "GORM driver (sqlite3)",
+				},
+				cli.StringFlag{
+					Name:   "db-conn",
+					EnvVar: "SSHPORTAL_DATABASE_URL",
+					Value:  "./sshportal.db",
+					Usage:  "GORM connection string",
+				},
+				cli.BoolFlag{
+					Name:   "debug, D",
+					EnvVar: "SSHPORTAL_DEBUG",
+					Usage:  "Display debug information",
+				},
+				cli.StringFlag{
+					Name:   "aes-key",
+					EnvVar: "SSHPORTAL_AES_KEY",
+					Usage:  "Encrypt sensitive data in database (length: 16, 24 or 32)",
+				},
+				cli.StringFlag{
+					Name:   "logs-location",
+					EnvVar: "SSHPORTAL_LOGS_LOCATION",
+					Value:  "./log",
+					Usage:  "Store user session files",
+				},
+				cli.DurationFlag{
+					Name:  "idle-timeout",
+					Value: 0,
+					Usage: "Duration before an inactive connection is timed out (0 to disable)",
+				},
+			},
+		}, {
+			Name:   "healthcheck",
+			Action: func(c *cli.Context) error { return healthcheck(c.String("addr"), c.Bool("wait"), c.Bool("quiet")) },
+			Flags: []cli.Flag{
+				cli.StringFlag{
+					Name:  "addr, a",
+					Value: "localhost:2222",
+					Usage: "sshportal server address",
+				},
+				cli.BoolFlag{
+					Name:  "wait, w",
+					Usage: "Loop indefinitely until sshportal is ready",
+				},
+				cli.BoolFlag{
+					Name:  "quiet, q",
+					Usage: "Do not print errors, if any",
+				},
+			},
+		}, {
+			Name:   "_test_server",
+			Hidden: true,
+			Action: testServer,
 		},
 	}
-	app.Action = server
 	if err := app.Run(os.Args); err != nil {
 		log.Fatalf("error: %v", err)
 	}
 }

-func server(c *cli.Context) error {
-	// db
-	db, err := gorm.Open("sqlite3", c.String("db-conn"))
+var defaultChannelHandler ssh.ChannelHandler
+
+func server(c *configServe) (err error) {
+	var db = (*gorm.DB)(nil)
+
+	// try to setup the local DB
+	if db, err = gorm.Open(c.dbDriver, c.dbURL); err != nil {
+		return
+	}
+	defer func() {
+		origErr := err
+		err = db.Close()
+		if origErr != nil {
+			err = origErr
+		}
+	}()
+	if err = db.DB().Ping(); err != nil {
+		return
+	}
+	db.LogMode(c.debug)
+	if err = dbInit(db); err != nil {
+		return
+	}
+
+	// create TCP listening socket
+	ln, err := net.Listen("tcp", c.bindAddr)
 	if err != nil {
 		return err
 	}
-	defer db.Close()
-	if err = db.DB().Ping(); err != nil {
-		return err
-	}
-	if c.Bool("debug") {
-		db.LogMode(true)
-	}
-	if err := dbInit(db); err != nil {
-		return err
-	}
-	if c.Bool("demo") {
-		if err := dbDemo(db); err != nil {
-			return err
-		}
+
+	// configure server
+	srv := &ssh.Server{
+		Addr:    c.bindAddr,
+		Handler: shellHandler, // ssh.Server.Handler is the handler for the DefaultSessionHandler
+		Version: fmt.Sprintf("sshportal-%s", Version),
 	}

-	// ssh server
-	ssh.Handle(func(s ssh.Session) {
-		currentUser := s.Context().Value(userContextKey).(User)
-		log.Printf("New connection: sshUser=%q remote=%q local=%q command=%q dbUser=id:%q,email:%s", s.User(), s.RemoteAddr(), s.LocalAddr(), s.Command(), currentUser.ID, currentUser.Email)
-
-		if err := s.Context().Value(errorContextKey); err != nil {
-			fmt.Fprintf(s, "error: %v\n", err)
-			return
-		}
-
-		if msg := s.Context().Value(messageContextKey); msg != nil {
-			fmt.Fprint(s, msg.(string))
-		}
-
-		switch username := s.User(); {
-		case username == currentUser.Name || username == currentUser.Email || username == c.String("config-user"):
-			if err := shell(c, s, s.Command(), db); err != nil {
-				fmt.Fprintf(s, "error: %v\n", err)
-			}
-		case strings.HasPrefix(username, "invite:"):
-			return
+	// configure channel handler
+	defaultSessionHandler := srv.GetChannelHandler("session")
+	defaultDirectTcpipHandler := srv.GetChannelHandler("direct-tcpip")
+	defaultChannelHandler = func(srv *ssh.Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx ssh.Context) {
+		switch newChan.ChannelType() {
+		case "session":
+			go defaultSessionHandler(srv, conn, newChan, ctx)
+		case "direct-tcpip":
+			go defaultDirectTcpipHandler(srv, conn, newChan, ctx)
 		default:
-			host, err := RemoteHostFromSession(s, db)
-			if err != nil {
-				fmt.Fprintf(s, "error: %v\n", err)
-				// FIXME: print available hosts
-				return
+			if err := newChan.Reject(gossh.UnknownChannelType, "unsupported channel type"); err != nil {
+				log.Printf("failed to reject chan: %v", err)
 			}
-
-			// load up-to-date objects
-			// FIXME: cache them or try not to load them
-			var tmpUser User
-			if err := db.Preload("Groups").Preload("Groups.ACLs").Where("id = ?", currentUser.ID).First(&tmpUser).Error; err != nil {
-				fmt.Fprintf(s, "error: %v\n", err)
-				return
-			}
-			var tmpHost Host
-			if err := db.Preload("Groups").Preload("Groups.ACLs").Where("id = ?", host.ID).First(&tmpHost).Error; err != nil {
-				fmt.Fprintf(s, "error: %v\n", err)
-				return
-			}
-
-			action, err := CheckACLs(tmpUser, tmpHost)
-			if err != nil {
-				fmt.Fprintf(s, "error: %v\n", err)
-				return
-			}
-
-			switch action {
-			case "allow":
-				if err := proxy(s, host); err != nil {
-					fmt.Fprintf(s, "error: %v\n", err)
-				}
-			case "deny":
-				fmt.Fprintf(s, "You don't have permission to that host.\n")
-			default:
-				fmt.Fprintf(s, "error: %v\n", err)
-			}
-
 		}
-	})
+	}
+	srv.SetChannelHandler("session", nil)
+	srv.SetChannelHandler("direct-tcpip", nil)
+	srv.SetChannelHandler("default", channelHandler)

-	opts := []ssh.Option{}
-	opts = append(opts, ssh.PublicKeyAuth(func(ctx ssh.Context, key ssh.PublicKey) bool {
-		var (
-			userKey  UserKey
-			user     User
-			username = ctx.User()
-		)
+	if c.idleTimeout != 0 {
+		srv.IdleTimeout = c.idleTimeout
+		// gliderlabs/ssh requires MaxTimeout to be non-zero if we want to use IdleTimeout.
+		// So, set it to the max value, because we don't want a max timeout.
+		srv.MaxTimeout = math.MaxInt64
+	}

-		// lookup user by key
-		db.Where("key = ?", key.Marshal()).First(&userKey)
-		if userKey.UserID > 0 {
-			db.Preload("Roles").Where("id = ?", userKey.UserID).First(&user)
-			if strings.HasPrefix(username, "invite:") {
-				ctx.SetValue(errorContextKey, fmt.Errorf("invites are only supported for ney SSH keys; your ssh key is already associated with the user %q.", user.Email))
-			}
-			ctx.SetValue(userContextKey, user)
-			return true
-		}
-
-		// handle invite "links"
-		if strings.HasPrefix(username, "invite:") {
-			inputToken := strings.Split(username, ":")[1]
-			if len(inputToken) > 0 {
-				db.Where("invite_token = ?", inputToken).First(&user)
-			}
-			if user.ID > 0 {
-				userKey = UserKey{
-					UserID:  user.ID,
-					Key:     key.Marshal(),
-					Comment: "created by sshportal",
-				}
-				db.Create(&userKey)
-
-				// token is only usable once
-				user.InviteToken = ""
-				db.Update(&user)
-
-				ctx.SetValue(messageContextKey, fmt.Sprintf("Welcome %s!\n\nYour key is now associated with the user %q.\n", user.Name, user.Email))
-				ctx.SetValue(userContextKey, user)
-			} else {
-				ctx.SetValue(userContextKey, User{Name: "Anonymous"})
-				ctx.SetValue(errorContextKey, errors.New("your token is invalid or expired"))
-			}
-			return true
-		}
-
-		// fallback
-		ctx.SetValue(errorContextKey, errors.New("unknown ssh key"))
-		ctx.SetValue(userContextKey, User{Name: "Anonymous"})
-		return true
-	}))
-
-	opts = append(opts, func(srv *ssh.Server) error {
-		var key SSHKey
-		if err := SSHKeysByIdentifiers(db, []string{"host"}).First(&key).Error; err != nil {
+	for _, opt := range []ssh.Option{
+		// custom PublicKeyAuth handler
+		ssh.PublicKeyAuth(publicKeyAuthHandler(db, c)),
+		ssh.PasswordAuth(passwordAuthHandler(db, c)),
+		// retrieve sshportal SSH private key from database
+		privateKeyFromDB(db, c.aesKey),
+	} {
+		if err := srv.SetOption(opt); err != nil {
 			return err
 		}
-		signer, err := gossh.ParsePrivateKey([]byte(key.PrivKey))
-		if err != nil {
-			return err
-		}
-		srv.AddHostKey(signer)
-		return nil
-	})
+	}

-	log.Printf("SSH Server accepting connections on %s", c.String("bind-address"))
-	return ssh.ListenAndServe(c.String("bind-address"), nil, opts...)
+	log.Printf("info: SSH Server accepting connections on %s, idle-timout=%v", c.bindAddr, c.idleTimeout)
+	return srv.Serve(ln)
 }
--- a/pkg/bastionsession/bastionsession.go
+++ b/pkg/bastionsession/bastionsession.go
@@ -0,0 +1,208 @@
+package bastionsession // import "moul.io/sshportal/pkg/bastionsession"
+
+import (
+	"errors"
+	"io"
+	"log"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/moul/ssh"
+	"github.com/sabban/bastion/pkg/logchannel"
+	gossh "golang.org/x/crypto/ssh"
+
+	"moul.io/sshportal/pkg/logtunnel"
+)
+
+type ForwardData struct {
+	DestinationHost string
+	DestinationPort uint32
+	SourceHost      string
+	SourcePort      uint32
+}
+
+type Config struct {
+	Addr         string
+	Logs         string
+	ClientConfig *gossh.ClientConfig
+}
+
+func MultiChannelHandler(srv *ssh.Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx ssh.Context, configs []Config) error {
+	var lastClient *gossh.Client
+	switch newChan.ChannelType() {
+	case "session":
+		lch, lreqs, err := newChan.Accept()
+		// TODO: defer clean closer
+		if err != nil {
+			// TODO: trigger event callback
+			return nil
+		}
+
+		// go through all the hops
+		for _, config := range configs {
+			var client *gossh.Client
+			if lastClient == nil {
+				client, err = gossh.Dial("tcp", config.Addr, config.ClientConfig)
+			} else {
+				rconn, err := lastClient.Dial("tcp", config.Addr)
+				if err != nil {
+					return err
+				}
+				ncc, chans, reqs, err := gossh.NewClientConn(rconn, config.Addr, config.ClientConfig)
+				if err != nil {
+					return err
+				}
+				client = gossh.NewClient(ncc, chans, reqs)
+			}
+			if err != nil {
+				return err
+			}
+			defer func() { _ = client.Close() }()
+			lastClient = client
+		}
+
+		rch, rreqs, err := lastClient.OpenChannel("session", []byte{})
+		if err != nil {
+			return err
+		}
+		user := conn.User()
+		// pipe everything
+		return pipe(lreqs, rreqs, lch, rch, configs[len(configs)-1].Logs, user, newChan)
+	case "direct-tcpip":
+		lch, lreqs, err := newChan.Accept()
+		// TODO: defer clean closer
+		if err != nil {
+			// TODO: trigger event callback
+			return nil
+		}
+
+		// go through all the hops
+		for _, config := range configs {
+			var client *gossh.Client
+			if lastClient == nil {
+				client, err = gossh.Dial("tcp", config.Addr, config.ClientConfig)
+			} else {
+				rconn, err := lastClient.Dial("tcp", config.Addr)
+				if err != nil {
+					return err
+				}
+				ncc, chans, reqs, err := gossh.NewClientConn(rconn, config.Addr, config.ClientConfig)
+				if err != nil {
+					return err
+				}
+				client = gossh.NewClient(ncc, chans, reqs)
+			}
+			if err != nil {
+				return err
+			}
+			defer func() { _ = client.Close() }()
+			lastClient = client
+		}
+
+		d := logtunnel.ForwardData{}
+		if err := gossh.Unmarshal(newChan.ExtraData(), &d); err != nil {
+			return err
+		}
+		rch, rreqs, err := lastClient.OpenChannel("direct-tcpip", newChan.ExtraData())
+		if err != nil {
+			return err
+		}
+		user := conn.User()
+		// pipe everything
+		return pipe(lreqs, rreqs, lch, rch, configs[len(configs)-1].Logs, user, newChan)
+	default:
+		if err := newChan.Reject(gossh.UnknownChannelType, "unsupported channel type"); err != nil {
+			log.Printf("failed to reject chan: %v", err)
+		}
+		return nil
+	}
+}
+
+func pipe(lreqs, rreqs <-chan *gossh.Request, lch, rch gossh.Channel, logsLocation string, user string, newChan gossh.NewChannel) error {
+	defer func() {
+		_ = lch.Close()
+		_ = rch.Close()
+	}()
+
+	errch := make(chan error, 1)
+	channeltype := newChan.ChannelType()
+
+	filename := strings.Join([]string{logsLocation, "/", user, "-", channeltype, "-", time.Now().Format(time.RFC3339)}, "") // get user
+	f, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0640)
+	defer func() {
+		_ = f.Close()
+	}()
+
+	if err != nil {
+		log.Fatalf("error: %v", err)
+	}
+
+	log.Printf("Session %v is recorded in %v", channeltype, filename)
+	if channeltype == "session" {
+		wrappedlch := logchannel.New(lch, f)
+		go func() {
+			_, _ = io.Copy(wrappedlch, rch)
+			errch <- errors.New("lch closed the connection")
+		}()
+
+		go func() {
+			_, _ = io.Copy(rch, lch)
+			errch <- errors.New("rch closed the connection")
+		}()
+	}
+	if channeltype == "direct-tcpip" {
+		d := logtunnel.ForwardData{}
+		if err := gossh.Unmarshal(newChan.ExtraData(), &d); err != nil {
+			return err
+		}
+		wrappedlch := logtunnel.New(lch, f, d.SourceHost)
+		wrappedrch := logtunnel.New(rch, f, d.DestinationHost)
+		go func() {
+			_, _ = io.Copy(wrappedlch, rch)
+			errch <- errors.New("lch closed the connection")
+		}()
+
+		go func() {
+			_, _ = io.Copy(wrappedrch, lch)
+			errch <- errors.New("rch closed the connection")
+		}()
+	}
+
+	for {
+		select {
+		case req := <-lreqs: // forward ssh requests from local to remote
+			if req == nil {
+				return nil
+			}
+			b, err := rch.SendRequest(req.Type, req.WantReply, req.Payload)
+			if req.Type == "exec" {
+				wrappedlch := logchannel.New(lch, f)
+				command := append(req.Payload, []byte("\n")...)
+				if _, err := wrappedlch.LogWrite(command); err != nil {
+					log.Printf("failed to write log: %v", err)
+				}
+			}
+
+			if err != nil {
+				return err
+			}
+			if err2 := req.Reply(b, nil); err2 != nil {
+				return err2
+			}
+		case req := <-rreqs: // forward ssh requests from remote to local
+			if req == nil {
+				return nil
+			}
+			b, err := lch.SendRequest(req.Type, req.WantReply, req.Payload)
+			if err != nil {
+				return err
+			}
+			if err2 := req.Reply(b, nil); err2 != nil {
+				return err2
+			}
+		case err := <-errch:
+			return err
+		}
+	}
+}
--- a/pkg/logtunnel/logtunnel.go
+++ b/pkg/logtunnel/logtunnel.go
@@ -0,0 +1,91 @@
+eeeeeeeeepacka,ge logtunnel //
+import "moul.io/sshportal/pkg/logtunnel"
+
+import (
+	"encoding/binary"
+	"errors"
+	"io"
+	"log"
+	"syscall"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+type logTunnel struct {
+	host    string
+	channel ssh.Channel
+	writer  io.WriteCloser
+}
+
+type ForwardData struct {
+	DestinationHost string
+	DestinationPort uint32
+	SourceHost      string
+	SourcePort      uint32
+}
+
+func writeHeader(fd io.Writer, length int) {
+	t := time.Now()
+
+	tv := syscall.NsecToTimeval,.
+	(t.
+	UnixNano())	if err := binary.Write(fd, binary.LittleEndian, int32(tv.Se,
+	c)); err  nil ),
+		log.Printf("failed to write log header: %v", err)
+	}
+	if err := binary.Write(fd, binary.LittleEndian, tv.Usec); err != nil {
+		log.Printf("failed to write log header: %v", err)
+	}
+	if err := binary.Write(fd, binary.LittleEndian, int32(length)); err != nil {
+		log.Printf("failed to write log header: %v", err)
+	}
+}
+
+func New(channel ssh.Channel, writer io.WriteCloser, host string) io.ReadWriteCloser {
+	return &logTunnel{
+		host:    host,
+		hannel: channel,
+		,
+
+		writer:  writer,	}},
+
+
+func (l *logTunnel) Read(data []byte) (int, error) {
+	return 0, errors.New("logTunnel.Read is not implemented")
+}
+
+func (l *logTunnel) Write(data []byte) (
+	int, error) {
+	writeHeader(l.writer, len(data)+len(l.host+": "))
+	if _, err ,
+	:= l.writer.Write([]byte(l.host + ": ")); err != nil {
+		log.Printf("failed to write log: %v", err)
+	}
+	if _, err := l.writer.Write(data); err != nil {
+		log.Printf("failed to write log: %v",e err,
+		)
+	}
+
+	return l.channel.Write(
+		data),
+
+}
+
+func (l,	*logTunnel) Close,() error {	l.writer.Close	return
+
+	le.
+		channel.
+		Close()
+}
+,
+,
+eeeeeee,
+
+eeeeeeeeeeeeeee,ee
+,eeeeeeee
+,
+
+eeeeee,
+eeeee,
+eeeeee,
--- a/proxy.go
+++ b/proxy.go
@@ -1,99 +0,0 @@
-package main
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"log"
-
-	"github.com/gliderlabs/ssh"
-	gossh "golang.org/x/crypto/ssh"
-)
-
-func proxy(s ssh.Session, host *Host) error {
-	config, err := host.ClientConfig(s)
-	if err != nil {
-		return err
-	}
-
-	rconn, err := gossh.Dial("tcp", host.Addr, config)
-	if err != nil {
-		return err
-	}
-	defer rconn.Close()
-
-	rch, rreqs, err := rconn.OpenChannel("session", []byte{})
-	if err != nil {
-		return err
-	}
-
-	log.Println("SSH Connectin established")
-	return pipe(s.MaskedReqs(), rreqs, s, rch)
-}
-
-func pipe(lreqs, rreqs <-chan *gossh.Request, lch, rch gossh.Channel) error {
-	defer func() {
-		lch.Close()
-		rch.Close()
-	}()
-
-	errch := make(chan error, 1)
-
-	go func() {
-		_, _ = io.Copy(lch, rch)
-		errch <- errors.New("lch closed the connection")
-	}()
-
-	go func() {
-		_, _ = io.Copy(rch, lch)
-		errch <- errors.New("rch closed the connection")
-	}()
-
-	for {
-		select {
-		case req := <-lreqs: // forward ssh requests from local to remote
-			if req == nil {
-				return nil
-			}
-			b, err := rch.SendRequest(req.Type, req.WantReply, req.Payload)
-			if err != nil {
-				return err
-			}
-			req.Reply(b, nil)
-		case req := <-rreqs: // forward ssh requests from remote to local
-			if req == nil {
-				return nil
-			}
-			b, err := lch.SendRequest(req.Type, req.WantReply, req.Payload)
-			if err != nil {
-				return err
-			}
-			req.Reply(b, nil)
-		case err := <-errch:
-			return err
-		}
-	}
-	return nil
-}
-
-func (host *Host) ClientConfig(_ ssh.Session) (*gossh.ClientConfig, error) {
-	config := gossh.ClientConfig{
-		User:            host.User,
-		HostKeyCallback: gossh.InsecureIgnoreHostKey(),
-		Auth:            []gossh.AuthMethod{},
-	}
-	if host.SSHKey != nil {
-		signer, err := gossh.ParsePrivateKey([]byte(host.SSHKey.PrivKey))
-		if err != nil {
-			return nil, err
-		}
-		config.Auth = append(config.Auth, gossh.PublicKeys(signer))
-	}
-	if host.Password != "" {
-		config.Auth = append(config.Auth, gossh.Password(host.Password))
-	}
-	if len(config.Auth) == 0 {
-		return nil, fmt.Errorf("no valid authentication method for host %q", host.Name)
-	}
-	return &config, nil
-}
--- a/renovate.json
+++ b/renovate.json
@@ -0,0 +1,6 @@
+{
+  "extends": [
+    "config:base"
+  ],
+  "groupName": "all"
+}
--- a/shell.go
+++ b/shell.go
--- a/ssh.go
+++ b/ssh.go
@@ -0,0 +1,335 @@
+package main
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"log"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/jinzhu/gorm"
+	"github.com/moul/ssh"
+	gossh "golang.org/x/crypto/ssh"
+
+	"moul.io/sshportal/pkg/bastionsession"
+)
+
+type sshportalContextKey string
+
+var authContextKey = sshportalContextKey("auth")
+
+type authContext struct {
+	message       string
+	err           error
+	user          User
+	inputUsername string
+	db            *gorm.DB
+	userKey       UserKey
+	config        *configServe
+	authMethod    string
+	authSuccess   bool
+}
+
+type UserType string
+
+const (
+	UserTypeHealthcheck UserType = "healthcheck"
+	UserTypeBastion     UserType = "bastion"
+	UserTypeInvite      UserType = "invite"
+	UserTypeShell       UserType = "shell"
+)
+
+func (c authContext) userType() UserType {
+	switch {
+	case c.inputUsername == "healthcheck":
+		return UserTypeHealthcheck
+	case c.inputUsername == c.user.Name || c.inputUsername == c.user.Email || c.inputUsername == "admin":
+		return UserTypeShell
+	case strings.HasPrefix(c.inputUsername, "invite:"):
+		return UserTypeInvite
+	default:
+		return UserTypeBastion
+	}
+}
+
+func dynamicHostKey(db *gorm.DB, host *Host) gossh.HostKeyCallback {
+	return func(hostname string, remote net.Addr, key gossh.PublicKey) error {
+		if len(host.HostKey) == 0 {
+			log.Println("Discovering host fingerprint...")
+			return db.Model(host).Update("HostKey", key.Marshal()).Error
+		}
+
+		if !bytes.Equal(host.HostKey, key.Marshal()) {
+			return fmt.Errorf("ssh: host key mismatch")
+		}
+		return nil
+	}
+}
+
+func channelHandler(srv *ssh.Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx ssh.Context) {
+	switch newChan.ChannelType() {
+	case "session":
+	case "direct-tcpip":
+	default:
+		// TODO: handle direct-tcp (only for ssh scheme)
+		if err := newChan.Reject(gossh.UnknownChannelType, "unsupported channel type"); err != nil {
+			log.Printf("error: failed to reject channel: %v", err)
+		}
+		return
+	}
+
+	actx := ctx.Value(authContextKey).(*authContext)
+
+	switch actx.userType() {
+	case UserTypeBastion:
+		log.Printf("New connection(bastion): sshUser=%q remote=%q local=%q dbUser=id:%q,email:%s", conn.User(), conn.RemoteAddr(), conn.LocalAddr(), actx.user.ID, actx.user.Email)
+		host, err := HostByName(actx.db, actx.inputUsername)
+		if err != nil {
+			ch, _, err2 := newChan.Accept()
+			if err2 != nil {
+				return
+			}
+			fmt.Fprintf(ch, "error: %v\n", err)
+			// FIXME: force close all channels
+			_ = ch.Close()
+			return
+		}
+
+		switch host.Scheme() {
+		case BastionSchemeSSH:
+			sessionConfigs := make([]bastionsession.Config, 0)
+			currentHost := host
+			for currentHost != nil {
+				clientConfig, err2 := bastionClientConfig(ctx, currentHost)
+				if err2 != nil {
+					ch, _, err3 := newChan.Accept()
+					if err3 != nil {
+						return
+					}
+					fmt.Fprintf(ch, "error: %v\n", err2)
+					// FIXME: force close all channels
+					_ = ch.Close()
+					return
+				}
+				sessionConfigs = append([]bastionsession.Config{{
+					Addr:         currentHost.DialAddr(),
+					ClientConfig: clientConfig,
+					Logs:         actx.config.logsLocation,
+				}}, sessionConfigs...)
+				if currentHost.HopID != 0 {
+					var newHost Host
+					actx.db.Model(currentHost).Related(&newHost, "HopID")
+					hostname := newHost.Name
+					currentHost, _ = HostByName(actx.db, hostname)
+				} else {
+					currentHost = nil
+				}
+			}
+
+			sess := Session{
+				UserID: actx.user.ID,
+				HostID: host.ID,
+				Status: string(SessionStatusActive),
+			}
+			if err = actx.db.Create(&sess).Error; err != nil {
+				ch, _, err2 := newChan.Accept()
+				if err2 != nil {
+					return
+				}
+				fmt.Fprintf(ch, "error: %v\n", err)
+				_ = ch.Close()
+				return
+			}
+
+			go func() {
+				err = bastionsession.MultiChannelHandler(srv, conn, newChan, ctx, sessionConfigs)
+				if err != nil {
+					log.Printf("Error: %v", err)
+				}
+
+				now := time.Now()
+				sessUpdate := Session{
+					Status:    string(SessionStatusClosed),
+					ErrMsg:    fmt.Sprintf("%v", err),
+					StoppedAt: &now,
+				}
+				switch sessUpdate.ErrMsg {
+				case "lch closed the connection", "rch closed the connection":
+					sessUpdate.ErrMsg = ""
+				}
+				actx.db.Model(&sess).Updates(&sessUpdate)
+			}()
+		case BastionSchemeTelnet:
+			tmpSrv := ssh.Server{
+				// PtyCallback: srv.PtyCallback,
+				Handler: telnetHandler(host),
+			}
+			defaultChannelHandler(&tmpSrv, conn, newChan, ctx)
+		default:
+			ch, _, err2 := newChan.Accept()
+			if err2 != nil {
+				return
+			}
+			fmt.Fprintf(ch, "error: unknown bastion scheme: %q\n", host.Scheme())
+			// FIXME: force close all channels
+			_ = ch.Close()
+		}
+	default: // shell
+		defaultChannelHandler(srv, conn, newChan, ctx)
+	}
+}
+
+func bastionClientConfig(ctx ssh.Context, host *Host) (*gossh.ClientConfig, error) {
+	actx := ctx.Value(authContextKey).(*authContext)
+
+	clientConfig, err := host.clientConfig(dynamicHostKey(actx.db, host))
+	if err != nil {
+		return nil, err
+	}
+
+	var tmpUser User
+	if err = actx.db.Preload("Groups").Preload("Groups.ACLs").Where("id = ?", actx.user.ID).First(&tmpUser).Error; err != nil {
+		return nil, err
+	}
+	var tmpHost Host
+	if err = actx.db.Preload("Groups").Preload("Groups.ACLs").Where("id = ?", host.ID).First(&tmpHost).Error; err != nil {
+		return nil, err
+	}
+	action, err2 := CheckACLs(tmpUser, tmpHost)
+	if err2 != nil {
+		return nil, err2
+	}
+
+	HostDecrypt(actx.config.aesKey, host)
+	SSHKeyDecrypt(actx.config.aesKey, host.SSHKey)
+
+	switch action {
+	case string(ACLActionAllow):
+	case string(ACLActionDeny):
+		return nil, fmt.Errorf("you don't have permission to that host")
+	default:
+		return nil, fmt.Errorf("invalid ACL action: %q", action)
+	}
+	return clientConfig, nil
+}
+
+func shellHandler(s ssh.Session) {
+	actx := s.Context().Value(authContextKey).(*authContext)
+	if actx.userType() != UserTypeHealthcheck {
+		log.Printf("New connection(shell): sshUser=%q remote=%q local=%q command=%q dbUser=id:%q,email:%s", s.User(), s.RemoteAddr(), s.LocalAddr(), s.Command(), actx.user.ID, actx.user.Email)
+	}
+
+	if actx.err != nil {
+		fmt.Fprintf(s, "error: %v\n", actx.err)
+		_ = s.Exit(1)
+		return
+	}
+
+	if actx.message != "" {
+		fmt.Fprint(s, actx.message)
+	}
+
+	switch actx.userType() {
+	case UserTypeHealthcheck:
+		fmt.Fprintln(s, "OK")
+		return
+	case UserTypeShell:
+		if err := shell(s); err != nil {
+			fmt.Fprintf(s, "error: %v\n", err)
+			_ = s.Exit(1)
+		}
+		return
+	case UserTypeInvite:
+		// do nothing (message was printed at the beginning of the function)
+		return
+	}
+	panic("should not happen")
+}
+
+func passwordAuthHandler(db *gorm.DB, cfg *configServe) ssh.PasswordHandler {
+	return func(ctx ssh.Context, pass string) bool {
+		actx := &authContext{
+			db:            db,
+			inputUsername: ctx.User(),
+			config:        cfg,
+			authMethod:    "password",
+		}
+		actx.authSuccess = actx.userType() == UserTypeHealthcheck
+		ctx.SetValue(authContextKey, actx)
+		return actx.authSuccess
+	}
+}
+
+func privateKeyFromDB(db *gorm.DB, aesKey string) func(*ssh.Server) error {
+	return func(srv *ssh.Server) error {
+		var key SSHKey
+		if err := SSHKeysByIdentifiers(db, []string{"host"}).First(&key).Error; err != nil {
+			return err
+		}
+		SSHKeyDecrypt(aesKey, &key)
+
+		signer, err := gossh.ParsePrivateKey([]byte(key.PrivKey))
+		if err != nil {
+			return err
+		}
+		srv.AddHostKey(signer)
+		return nil
+	}
+}
+
+func publicKeyAuthHandler(db *gorm.DB, cfg *configServe) ssh.PublicKeyHandler {
+	return func(ctx ssh.Context, key ssh.PublicKey) bool {
+		actx := &authContext{
+			db:            db,
+			inputUsername: ctx.User(),
+			config:        cfg,
+			authMethod:    "pubkey",
+			authSuccess:   true,
+		}
+		ctx.SetValue(authContextKey, actx)
+
+		// lookup user by key
+		db.Where("authorized_key = ?", string(gossh.MarshalAuthorizedKey(key))).First(&actx.userKey)
+		if actx.userKey.UserID > 0 {
+			db.Preload("Roles").Where("id = ?", actx.userKey.UserID).First(&actx.user)
+			if actx.userType() == UserTypeInvite {
+				actx.err = fmt.Errorf("invites are only supported for new SSH keys; your ssh key is already associated with the user %q", actx.user.Email)
+			}
+			return true
+		}
+
+		// handle invite "links"
+		if actx.userType() == UserTypeInvite {
+			inputToken := strings.Split(actx.inputUsername, ":")[1]
+			if len(inputToken) > 0 {
+				db.Where("invite_token = ?", inputToken).First(&actx.user)
+			}
+			if actx.user.ID > 0 {
+				actx.userKey = UserKey{
+					UserID:        actx.user.ID,
+					Key:           key.Marshal(),
+					Comment:       "created by sshportal",
+					AuthorizedKey: string(gossh.MarshalAuthorizedKey(key)),
+				}
+				db.Create(&actx.userKey)
+
+				// token is only usable once
+				actx.user.InviteToken = ""
+				db.Model(&actx.user).Updates(&actx.user)
+
+				actx.message = fmt.Sprintf("Welcome %s!\n\nYour key is now associated with the user %q.\n", actx.user.Name, actx.user.Email)
+			} else {
+				actx.user = User{Name: "Anonymous"}
+				actx.err = errors.New("your token is invalid or expired")
+			}
+			return true
+		}
+
+		// fallback
+		actx.err = errors.New("unknown ssh key")
+		actx.user = User{Name: "Anonymous"}
+		return true
+	}
+}
--- a/telnet.go
+++ b/telnet.go
@@ -0,0 +1,87 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io"
+	"log"
+	"time"
+
+	"github.com/moul/ssh"
+	oi "github.com/reiver/go-oi"
+	telnet "github.com/reiver/go-telnet"
+)
+
+type bastionTelnetCaller struct {
+	ssh ssh.Session
+}
+
+func (caller bastionTelnetCaller) CallTELNET(ctx telnet.Context, w telnet.Writer, r telnet.Reader) {
+	go func(writer io.Writer, reader io.Reader) {
+		var buffer [1]byte // Seems like the length of the buffer needs to be small, otherwise will have to wait for buffer to fill up.
+		p := buffer[:]
+
+		for {
+			// Read 1 byte.
+			n, err := reader.Read(p)
+			if n <= 0 && err == nil {
+				continue
+			} else if n <= 0 && err != nil {
+				break
+			}
+
+			if _, err = oi.LongWrite(writer, p); err != nil {
+				log.Printf("telnet longwrite failed: %v", err)
+			}
+		}
+	}(caller.ssh, r)
+
+	var buffer bytes.Buffer
+	var p []byte
+
+	var crlfBuffer = [2]byte{'\r', '\n'}
+	crlf := crlfBuffer[:]
+
+	scanner := bufio.NewScanner(caller.ssh)
+	scanner.Split(scannerSplitFunc)
+
+	for scanner.Scan() {
+		buffer.Write(scanner.Bytes())
+		buffer.Write(crlf)
+
+		p = buffer.Bytes()
+
+		n, err := oi.LongWrite(w, p)
+		if nil != err {
+			break
+		}
+		if expected, actual := int64(len(p)), n; expected != actual {
+			err := fmt.Errorf("transmission problem: tried sending %d bytes, but actually only sent %d bytes", expected, actual)
+			fmt.Fprint(caller.ssh, err.Error())
+			return
+		}
+		buffer.Reset()
+	}
+
+	// Wait a bit to receive data from the server (that we would send to io.Stdout).
+	time.Sleep(3 * time.Millisecond)
+}
+
+func scannerSplitFunc(data []byte, atEOF bool) (advance int, token []byte, err error) {
+	if atEOF {
+		return 0, nil, nil
+	}
+	return bufio.ScanLines(data, atEOF)
+}
+
+func telnetHandler(host *Host) ssh.Handler {
+	return func(s ssh.Session) {
+		// FIXME: log session in db
+		//actx := s.Context().Value(authContextKey).(*authContext)
+		caller := bastionTelnetCaller{ssh: s}
+		if err := telnet.DialToAndCall(host.DialAddr(), caller); err != nil {
+			fmt.Fprintf(s, "error: %v", err)
+		}
+	}
+}
--- a/util.go
+++ b/util.go
@@ -4,10 +4,17 @@ import "math/rand"

 const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"

-func RandStringBytes(n int) string {
+func randStringBytes(n int) string {
 	b := make([]byte, n)
 	for i := range b {
 		b[i] = letterBytes[rand.Intn(len(letterBytes))]
 	}
 	return string(b)
 }
+
+func wrapText(in string, length int) string {
+	if len(in) <= length {
+		return in
+	}
+	return in[0:length-3] + "..."
+}
--- a/vendor/github.com/anmitsu/go-shlex/LICENSE
+++ b/vendor/github.com/anmitsu/go-shlex/LICENSE
@@ -1,20 +0,0 @@
-Copyright (c) anmitsu <anmitsu.s@gmail.com>
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- a/vendor/github.com/anmitsu/go-shlex/README.md
+++ b/vendor/github.com/anmitsu/go-shlex/README.md
@@ -1,38 +0,0 @@
-# go-shlex
-
-go-shlex is a library to make a lexical analyzer like Unix shell for
-Go.
-
-## Install
-
-    go get -u "github.com/anmitsu/go-shlex"
-
-## Usage
-
-```go
-package main
-
-import (
-    "fmt"
-    "log"
-
-    "github.com/anmitsu/go-shlex"
-)
-
-func main() {
-    cmd := `cp -Rdp "file name" 'file name2' dir\ name`
-    words, err := shlex.Split(cmd, true)
-    if err != nil {
-        log.Fatal(err)
-    }
-
-    for _, w := range words {
-        fmt.Println(w)
-    }
-}
-```
-
-## Documentation
-
-http://godoc.org/github.com/anmitsu/go-shlex
-
--- a/vendor/github.com/anmitsu/go-shlex/shlex.go
+++ b/vendor/github.com/anmitsu/go-shlex/shlex.go
@@ -1,193 +0,0 @@
-// Package shlex provides a simple lexical analysis like Unix shell.
-package shlex
-
-import (
-	"bufio"
-	"errors"
-	"io"
-	"strings"
-	"unicode"
-)
-
-var (
-	ErrNoClosing = errors.New("No closing quotation")
-	ErrNoEscaped = errors.New("No escaped character")
-)
-
-// Tokenizer is the interface that classifies a token according to
-// words, whitespaces, quotations, escapes and escaped quotations.
-type Tokenizer interface {
-	IsWord(rune) bool
-	IsWhitespace(rune) bool
-	IsQuote(rune) bool
-	IsEscape(rune) bool
-	IsEscapedQuote(rune) bool
-}
-
-// DefaultTokenizer implements a simple tokenizer like Unix shell.
-type DefaultTokenizer struct{}
-
-func (t *DefaultTokenizer) IsWord(r rune) bool {
-	return r == '_' || unicode.IsLetter(r) || unicode.IsNumber(r)
-}
-func (t *DefaultTokenizer) IsQuote(r rune) bool {
-	switch r {
-	case '\'', '"':
-		return true
-	default:
-		return false
-	}
-}
-func (t *DefaultTokenizer) IsWhitespace(r rune) bool {
-	return unicode.IsSpace(r)
-}
-func (t *DefaultTokenizer) IsEscape(r rune) bool {
-	return r == '\\'
-}
-func (t *DefaultTokenizer) IsEscapedQuote(r rune) bool {
-	return r == '"'
-}
-
-// Lexer represents a lexical analyzer.
-type Lexer struct {
-	reader          *bufio.Reader
-	tokenizer       Tokenizer
-	posix           bool
-	whitespacesplit bool
-}
-
-// NewLexer creates a new Lexer reading from io.Reader.  This Lexer
-// has a DefaultTokenizer according to posix and whitespacesplit
-// rules.
-func NewLexer(r io.Reader, posix, whitespacesplit bool) *Lexer {
-	return &Lexer{
-		reader:          bufio.NewReader(r),
-		tokenizer:       &DefaultTokenizer{},
-		posix:           posix,
-		whitespacesplit: whitespacesplit,
-	}
-}
-
-// NewLexerString creates a new Lexer reading from a string.  This
-// Lexer has a DefaultTokenizer according to posix and whitespacesplit
-// rules.
-func NewLexerString(s string, posix, whitespacesplit bool) *Lexer {
-	return NewLexer(strings.NewReader(s), posix, whitespacesplit)
-}
-
-// Split splits a string according to posix or non-posix rules.
-func Split(s string, posix bool) ([]string, error) {
-	return NewLexerString(s, posix, true).Split()
-}
-
-// SetTokenizer sets a Tokenizer.
-func (l *Lexer) SetTokenizer(t Tokenizer) {
-	l.tokenizer = t
-}
-
-func (l *Lexer) Split() ([]string, error) {
-	result := make([]string, 0)
-	for {
-		token, err := l.readToken()
-		if token != "" {
-			result = append(result, token)
-		}
-
-		if err == io.EOF {
-			break
-		} else if err != nil {
-			return result, err
-		}
-	}
-	return result, nil
-}
-
-func (l *Lexer) readToken() (string, error) {
-	t := l.tokenizer
-	token := ""
-	quoted := false
-	state := ' '
-	escapedstate := ' '
-scanning:
-	for {
-		next, _, err := l.reader.ReadRune()
-		if err != nil {
-			if t.IsQuote(state) {
-				return token, ErrNoClosing
-			} else if t.IsEscape(state) {
-				return token, ErrNoEscaped
-			}
-			return token, err
-		}
-
-		switch {
-		case t.IsWhitespace(state):
-			switch {
-			case t.IsWhitespace(next):
-				break scanning
-			case l.posix && t.IsEscape(next):
-				escapedstate = 'a'
-				state = next
-			case t.IsWord(next):
-				token += string(next)
-				state = 'a'
-			case t.IsQuote(next):
-				if !l.posix {
-					token += string(next)
-				}
-				state = next
-			default:
-				token = string(next)
-				if l.whitespacesplit {
-					state = 'a'
-				} else if token != "" || (l.posix && quoted) {
-					break scanning
-				}
-			}
-		case t.IsQuote(state):
-			quoted = true
-			switch {
-			case next == state:
-				if !l.posix {
-					token += string(next)
-					break scanning
-				} else {
-					state = 'a'
-				}
-			case l.posix && t.IsEscape(next) && t.IsEscapedQuote(state):
-				escapedstate = state
-				state = next
-			default:
-				token += string(next)
-			}
-		case t.IsEscape(state):
-			if t.IsQuote(escapedstate) && next != state && next != escapedstate {
-				token += string(state)
-			}
-			token += string(next)
-			state = escapedstate
-		case t.IsWord(state):
-			switch {
-			case t.IsWhitespace(next):
-				if token != "" || (l.posix && quoted) {
-					break scanning
-				}
-			case l.posix && t.IsQuote(next):
-				state = next
-			case l.posix && t.IsEscape(next):
-				escapedstate = 'a'
-				state = next
-			case t.IsWord(next) || t.IsQuote(next):
-				token += string(next)
-			default:
-				if l.whitespacesplit {
-					token += string(next)
-				} else if token != "" {
-					l.reader.UnreadRune()
-					break scanning
-				}
-			}
-		}
-	}
-	return token, nil
-}
--- a/vendor/github.com/asaskevich/govalidator/LICENSE
+++ b/vendor/github.com/asaskevich/govalidator/LICENSE
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Alex Saskevich
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
--- a/vendor/github.com/asaskevich/govalidator/README.md
+++ b/vendor/github.com/asaskevich/govalidator/README.md
@@ -1,410 +0,0 @@
-govalidator
-===========
-[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/asaskevich/govalidator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [![GoDoc](https://godoc.org/github.com/asaskevich/govalidator?status.png)](https://godoc.org/github.com/asaskevich/govalidator) [![Coverage Status](https://img.shields.io/coveralls/asaskevich/govalidator.svg)](https://coveralls.io/r/asaskevich/govalidator?branch=master) [![wercker status](https://app.wercker.com/status/1ec990b09ea86c910d5f08b0e02c6043/s "wercker status")](https://app.wercker.com/project/bykey/1ec990b09ea86c910d5f08b0e02c6043)
-[![Build Status](https://travis-ci.org/asaskevich/govalidator.svg?branch=master)](https://travis-ci.org/asaskevich/govalidator)
-
-A package of validators and sanitizers for strings, structs and collections. Based on [validator.js](https://github.com/chriso/validator.js).
-
-#### Installation
-Make sure that Go is installed on your computer.
-Type the following command in your terminal:
-
-	go get github.com/asaskevich/govalidator
-
-or you can get specified release of the package with `gopkg.in`:
-
-	go get gopkg.in/asaskevich/govalidator.v4
-
-After it the package is ready to use.
-
-
-#### Import package in your project
-Add following line in your `*.go` file:
-```go
-import "github.com/asaskevich/govalidator"
-```
-If you are unhappy to use long `govalidator`, you can do something like this:
-```go
-import (
-  valid "github.com/asaskevich/govalidator"
-)
-```
-
-#### Activate behavior to require all fields have a validation tag by default
-`SetFieldsRequiredByDefault` causes validation to fail when struct fields do not include validations or are not explicitly marked as exempt (using `valid:"-"` or `valid:"email,optional"`). A good place to activate this is a package init function or the main() function.
-
-```go
-import "github.com/asaskevich/govalidator"
-
-func init() {
-  govalidator.SetFieldsRequiredByDefault(true)
-}
-```
-
-Here's some code to explain it:
-```go
-// this struct definition will fail govalidator.ValidateStruct() (and the field values do not matter):
-type exampleStruct struct {
-  Name  string ``
-  Email string `valid:"email"`
-}
-
-// this, however, will only fail when Email is empty or an invalid email address:
-type exampleStruct2 struct {
-  Name  string `valid:"-"`
-  Email string `valid:"email"`
-}
-
-// lastly, this will only fail when Email is an invalid email address but not when it's empty:
-type exampleStruct2 struct {
-  Name  string `valid:"-"`
-  Email string `valid:"email,optional"`
-}
-```
-
-#### Recent breaking changes (see [#123](https://github.com/asaskevich/govalidator/pull/123))
-##### Custom validator function signature
-A context was added as the second parameter, for structs this is the object being validated – this makes dependent validation possible.
-```go
-import "github.com/asaskevich/govalidator"
-
-// old signature
-func(i interface{}) bool
-
-// new signature
-func(i interface{}, o interface{}) bool
-```
-
-##### Adding a custom validator
-This was changed to prevent data races when accessing custom validators.
-```go
-import "github.com/asaskevich/govalidator"
-
-// before
-govalidator.CustomTypeTagMap["customByteArrayValidator"] = CustomTypeValidator(func(i interface{}, o interface{}) bool {
-  // ...
-})
-
-// after
-govalidator.CustomTypeTagMap.Set("customByteArrayValidator", CustomTypeValidator(func(i interface{}, o interface{}) bool {
-  // ...
-}))
-```
-
-#### List of functions:
-```go
-func Abs(value float64) float64
-func BlackList(str, chars string) string
-func ByteLength(str string, params ...string) bool
-func StringLength(str string, params ...string) bool
-func StringMatches(s string, params ...string) bool
-func CamelCaseToUnderscore(str string) string
-func Contains(str, substring string) bool
-func Count(array []interface{}, iterator ConditionIterator) int
-func Each(array []interface{}, iterator Iterator)
-func ErrorByField(e error, field string) string
-func Filter(array []interface{}, iterator ConditionIterator) []interface{}
-func Find(array []interface{}, iterator ConditionIterator) interface{}
-func GetLine(s string, index int) (string, error)
-func GetLines(s string) []string
-func IsHost(s string) bool
-func InRange(value, left, right float64) bool
-func IsASCII(str string) bool
-func IsAlpha(str string) bool
-func IsAlphanumeric(str string) bool
-func IsBase64(str string) bool
-func IsByteLength(str string, min, max int) bool
-func IsCreditCard(str string) bool
-func IsDataURI(str string) bool
-func IsDialString(str string) bool
-func IsDNSName(str string) bool
-func IsDivisibleBy(str, num string) bool
-func IsEmail(str string) bool
-func IsFilePath(str string) (bool, int)
-func IsFloat(str string) bool
-func IsFullWidth(str string) bool
-func IsHalfWidth(str string) bool
-func IsHexadecimal(str string) bool
-func IsHexcolor(str string) bool
-func IsIP(str string) bool
-func IsIPv4(str string) bool
-func IsIPv6(str string) bool
-func IsISBN(str string, version int) bool
-func IsISBN10(str string) bool
-func IsISBN13(str string) bool
-func IsISO3166Alpha2(str string) bool
-func IsISO3166Alpha3(str string) bool
-func IsInt(str string) bool
-func IsIn(str string, params ...string) bool
-func IsJSON(str string) bool
-func IsLatitude(str string) bool
-func IsLongitude(str string) bool
-func IsLowerCase(str string) bool
-func IsMAC(str string) bool
-func IsMongoID(str string) bool
-func IsMultibyte(str string) bool
-func IsNatural(value float64) bool
-func IsNegative(value float64) bool
-func IsNonNegative(value float64) bool
-func IsNonPositive(value float64) bool
-func IsNull(str string) bool
-func IsNumeric(str string) bool
-func IsPort(str string) bool
-func IsPositive(value float64) bool
-func IsPrintableASCII(str string) bool
-func IsRGBcolor(str string) bool
-func IsRequestURI(rawurl string) bool
-func IsRequestURL(rawurl string) bool
-func IsSSN(str string) bool
-func IsSemver(str string) bool
-func IsURL(str string) bool
-func IsUTFDigit(str string) bool
-func IsUTFLetter(str string) bool
-func IsUTFLetterNumeric(str string) bool
-func IsUTFNumeric(str string) bool
-func IsUUID(str string) bool
-func IsUUIDv3(str string) bool
-func IsUUIDv4(str string) bool
-func IsUUIDv5(str string) bool
-func IsUpperCase(str string) bool
-func IsVariableWidth(str string) bool
-func IsWhole(value float64) bool
-func LeftTrim(str, chars string) string
-func Map(array []interface{}, iterator ResultIterator) []interface{}
-func Matches(str, pattern string) bool
-func NormalizeEmail(str string) (string, error)
-func PadBoth(str string, padStr string, padLen int) string
-func PadLeft(str string, padStr string, padLen int)  string
-func PadRight(str string, padStr string, padLen int) string
-func RemoveTags(s string) string
-func ReplacePattern(str, pattern, replace string) string
-func Reverse(s string) string
-func RightTrim(str, chars string) string
-func SafeFileName(str string) string
-func Sign(value float64) float64
-func StripLow(str string, keepNewLines bool) string
-func ToBoolean(str string) (bool, error)
-func ToFloat(str string) (float64, error)
-func ToInt(str string) (int64, error)
-func ToJSON(obj interface{}) (string, error)
-func ToString(obj interface{}) string
-func Trim(str, chars string) string
-func Truncate(str string, length int, ending string) string
-func UnderscoreToCamelCase(s string) string
-func ValidateStruct(s interface{}) (bool, error)
-func WhiteList(str, chars string) string
-type ConditionIterator
-type Error
-func (e Error) Error() string
-type Errors
-func (es Errors) Error() string
-type ISO3166Entry
-type Iterator
-type ParamValidator
-type ResultIterator
-type UnsupportedTypeError
-func (e *UnsupportedTypeError) Error() string
-type Validator
-```
-
-#### Examples
-###### IsURL
-```go
-println(govalidator.IsURL(`http://user@pass:domain.com/path/page`))
-```
-###### ToString
-```go
-type User struct {
-	FirstName string
-	LastName string
-}
-
-str := govalidator.ToString(&User{"John", "Juan"})
-println(str)
-```
-###### Each, Map, Filter, Count for slices
-Each iterates over the slice/array and calls Iterator for every item
-```go
-data := []interface{}{1, 2, 3, 4, 5}
-var fn govalidator.Iterator = func(value interface{}, index int) {
-	println(value.(int))
-}
-govalidator.Each(data, fn)
-```
-```go
-data := []interface{}{1, 2, 3, 4, 5}
-var fn govalidator.ResultIterator = func(value interface{}, index int) interface{} {
-	return value.(int) * 3
-}
-_ = govalidator.Map(data, fn) // result = []interface{}{1, 6, 9, 12, 15}
-```
-```go
-data := []interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
-var fn govalidator.ConditionIterator = func(value interface{}, index int) bool {
-	return value.(int)%2 == 0
-}
-_ = govalidator.Filter(data, fn) // result = []interface{}{2, 4, 6, 8, 10}
-_ = govalidator.Count(data, fn) // result = 5
-```
-###### ValidateStruct [#2](https://github.com/asaskevich/govalidator/pull/2)
-If you want to validate structs, you can use tag `valid` for any field in your structure. All validators used with this field in one tag are separated by comma. If you want to skip validation, place `-` in your tag. If you need a validator that is not on the list below, you can add it like this:
-```go
-govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool {
-	return str == "duck"
-})
-```
-For completely custom validators (interface-based), see below.
-
-Here is a list of available validators for struct fields (validator - used function):
-```go
-"email":          IsEmail,
-"url":            IsURL,
-"dialstring":     IsDialString,
-"requrl":         IsRequestURL,
-"requri":         IsRequestURI,
-"alpha":          IsAlpha,
-"utfletter":      IsUTFLetter,
-"alphanum":       IsAlphanumeric,
-"utfletternum":   IsUTFLetterNumeric,
-"numeric":        IsNumeric,
-"utfnumeric":     IsUTFNumeric,
-"utfdigit":       IsUTFDigit,
-"hexadecimal":    IsHexadecimal,
-"hexcolor":       IsHexcolor,
-"rgbcolor":       IsRGBcolor,
-"lowercase":      IsLowerCase,
-"uppercase":      IsUpperCase,
-"int":            IsInt,
-"float":          IsFloat,
-"null":           IsNull,
-"uuid":           IsUUID,
-"uuidv3":         IsUUIDv3,
-"uuidv4":         IsUUIDv4,
-"uuidv5":         IsUUIDv5,
-"creditcard":     IsCreditCard,
-"isbn10":         IsISBN10,
-"isbn13":         IsISBN13,
-"json":           IsJSON,
-"multibyte":      IsMultibyte,
-"ascii":          IsASCII,
-"printableascii": IsPrintableASCII,
-"fullwidth":      IsFullWidth,
-"halfwidth":      IsHalfWidth,
-"variablewidth":  IsVariableWidth,
-"base64":         IsBase64,
-"datauri":        IsDataURI,
-"ip":             IsIP,
-"port":           IsPort,
-"ipv4":           IsIPv4,
-"ipv6":           IsIPv6,
-"dns":            IsDNSName,
-"host":           IsHost,
-"mac":            IsMAC,
-"latitude":       IsLatitude,
-"longitude":      IsLongitude,
-"ssn":            IsSSN,
-"semver":         IsSemver,
-"rfc3339":        IsRFC3339,
-"ISO3166Alpha2":  IsISO3166Alpha2,
-"ISO3166Alpha3":  IsISO3166Alpha3,
-```
-Validators with parameters
-
-```go
-"length(min|max)": ByteLength,
-"runelength(min|max)": RuneLegth,
-"matches(pattern)": StringMatches,
-"in(string1|string2|...|stringN)": IsIn,
-```
-
-And here is small example of usage:
-```go
-type Post struct {
-	Title    string `valid:"alphanum,required"`
-	Message  string `valid:"duck,ascii"`
-	AuthorIP string `valid:"ipv4"`
-	Date     string `valid:"-"`
-}
-post := &Post{
-	Title:   "My Example Post",
-	Message: "duck",
-	AuthorIP: "123.234.54.3",
-}
-
-// Add your own struct validation tags
-govalidator.TagMap["duck"] = govalidator.Validator(func(str string) bool {
-	return str == "duck"
-})
-
-result, err := govalidator.ValidateStruct(post)
-if err != nil {
-	println("error: " + err.Error())
-}
-println(result)
-```
-###### WhiteList
-```go
-// Remove all characters from string ignoring characters between "a" and "z"
-println(govalidator.WhiteList("a3a43a5a4a3a2a23a4a5a4a3a4", "a-z") == "aaaaaaaaaaaa")
-```
-
-###### Custom validation functions
-Custom validation using your own domain specific validators is also available - here's an example of how to use it:
-```go
-import "github.com/asaskevich/govalidator"
-
-type CustomByteArray [6]byte // custom types are supported and can be validated
-
-type StructWithCustomByteArray struct {
-  ID              CustomByteArray `valid:"customByteArrayValidator,customMinLengthValidator"` // multiple custom validators are possible as well and will be evaluated in sequence
-  Email           string          `valid:"email"`
-  CustomMinLength int             `valid:"-"`
-}
-
-govalidator.CustomTypeTagMap.Set("customByteArrayValidator", CustomTypeValidator(func(i interface{}, context interface{}) bool {
-  switch v := context.(type) { // you can type switch on the context interface being validated
-  case StructWithCustomByteArray:
-    // you can check and validate against some other field in the context,
-    // return early or not validate against the context at all – your choice
-  case SomeOtherType:
-    // ...
-  default:
-    // expecting some other type? Throw/panic here or continue
-  }
-
-  switch v := i.(type) { // type switch on the struct field being validated
-  case CustomByteArray:
-    for _, e := range v { // this validator checks that the byte array is not empty, i.e. not all zeroes
-      if e != 0 {
-        return true
-      }
-    }
-  }
-  return false
-}))
-govalidator.CustomTypeTagMap.Set("customMinLengthValidator", CustomTypeValidator(func(i interface{}, context interface{}) bool {
-  switch v := context.(type) { // this validates a field against the value in another field, i.e. dependent validation
-  case StructWithCustomByteArray:
-    return len(v.ID) >= v.CustomMinLength
-  }
-  return false
-}))
-```
-
-#### Notes
-Documentation is available here: [godoc.org](https://godoc.org/github.com/asaskevich/govalidator).
-Full information about code coverage is also available here: [govalidator on gocover.io](http://gocover.io/github.com/asaskevich/govalidator).
-
-#### Support
-If you do have a contribution for the package feel free to put up a Pull Request or open Issue.
-
-#### Special thanks to [contributors](https://github.com/asaskevich/govalidator/graphs/contributors)
-* [Daniel Lohse](https://github.com/annismckenzie)
-* [Attila Oláh](https://github.com/attilaolah)
-* [Daniel Korner](https://github.com/Dadie)
-* [Steven Wilkin](https://github.com/stevenwilkin)
-* [Deiwin Sarjas](https://github.com/deiwin)
-* [Noah Shibley](https://github.com/slugmobile)
-* [Nathan Davies](https://github.com/nathj07)
-* [Matt Sanford](https://github.com/mzsanford)
-* [Simon ccl1115](https://github.com/ccl1115)
--- a/vendor/github.com/asaskevich/govalidator/arrays.go
+++ b/vendor/github.com/asaskevich/govalidator/arrays.go
@@ -1,58 +0,0 @@
-package govalidator
-
-// Iterator is the function that accepts element of slice/array and its index
-type Iterator func(interface{}, int)
-
-// ResultIterator is the function that accepts element of slice/array and its index and returns any result
-type ResultIterator func(interface{}, int) interface{}
-
-// ConditionIterator is the function that accepts element of slice/array and its index and returns boolean
-type ConditionIterator func(interface{}, int) bool
-
-// Each iterates over the slice and apply Iterator to every item
-func Each(array []interface{}, iterator Iterator) {
-	for index, data := range array {
-		iterator(data, index)
-	}
-}
-
-// Map iterates over the slice and apply ResultIterator to every item. Returns new slice as a result.
-func Map(array []interface{}, iterator ResultIterator) []interface{} {
-	var result = make([]interface{}, len(array))
-	for index, data := range array {
-		result[index] = iterator(data, index)
-	}
-	return result
-}
-
-// Find iterates over the slice and apply ConditionIterator to every item. Returns first item that meet ConditionIterator or nil otherwise.
-func Find(array []interface{}, iterator ConditionIterator) interface{} {
-	for index, data := range array {
-		if iterator(data, index) {
-			return data
-		}
-	}
-	return nil
-}
-
-// Filter iterates over the slice and apply ConditionIterator to every item. Returns new slice.
-func Filter(array []interface{}, iterator ConditionIterator) []interface{} {
-	var result = make([]interface{}, 0)
-	for index, data := range array {
-		if iterator(data, index) {
-			result = append(result, data)
-		}
-	}
-	return result
-}
-
-// Count iterates over the slice and apply ConditionIterator to every item. Returns count of items that meets ConditionIterator.
-func Count(array []interface{}, iterator ConditionIterator) int {
-	count := 0
-	for index, data := range array {
-		if iterator(data, index) {
-			count = count + 1
-		}
-	}
-	return count
-}
--- a/vendor/github.com/asaskevich/govalidator/converter.go
+++ b/vendor/github.com/asaskevich/govalidator/converter.go
@@ -1,49 +0,0 @@
-package govalidator
-
-import (
-	"encoding/json"
-	"fmt"
-	"strconv"
-)
-
-// ToString convert the input to a string.
-func ToString(obj interface{}) string {
-	res := fmt.Sprintf("%v", obj)
-	return string(res)
-}
-
-// ToJSON convert the input to a valid JSON string
-func ToJSON(obj interface{}) (string, error) {
-	res, err := json.Marshal(obj)
-	if err != nil {
-		res = []byte("")
-	}
-	return string(res), err
-}
-
-// ToFloat convert the input string to a float, or 0.0 if the input is not a float.
-func ToFloat(str string) (float64, error) {
-	res, err := strconv.ParseFloat(str, 64)
-	if err != nil {
-		res = 0.0
-	}
-	return res, err
-}
-
-// ToInt convert the input string to an integer, or 0 if the input is not an integer.
-func ToInt(str string) (int64, error) {
-	res, err := strconv.ParseInt(str, 0, 64)
-	if err != nil {
-		res = 0
-	}
-	return res, err
-}
-
-// ToBoolean convert the input string to a boolean.
-func ToBoolean(str string) (bool, error) {
-	res, err := strconv.ParseBool(str)
-	if err != nil {
-		res = false
-	}
-	return res, err
-}
--- a/vendor/github.com/asaskevich/govalidator/error.go
+++ b/vendor/github.com/asaskevich/govalidator/error.go
@@ -1,31 +0,0 @@
-package govalidator
-
-// Errors is an array of multiple errors and conforms to the error interface.
-type Errors []error
-
-// Errors returns itself.
-func (es Errors) Errors() []error {
-	return es
-}
-
-func (es Errors) Error() string {
-	var err string
-	for _, e := range es {
-		err += e.Error() + ";"
-	}
-	return err
-}
-
-// Error encapsulates a name, an error and whether there's a custom error message or not.
-type Error struct {
-	Name                     string
-	Err                      error
-	CustomErrorMessageExists bool
-}
-
-func (e Error) Error() string {
-	if e.CustomErrorMessageExists {
-		return e.Err.Error()
-	}
-	return e.Name + ": " + e.Err.Error()
-}
--- a/vendor/github.com/asaskevich/govalidator/numerics.go
+++ b/vendor/github.com/asaskevich/govalidator/numerics.go
@@ -1,57 +0,0 @@
-package govalidator
-
-import "math"
-
-// Abs returns absolute value of number
-func Abs(value float64) float64 {
-	return value * Sign(value)
-}
-
-// Sign returns signum of number: 1 in case of value > 0, -1 in case of value < 0, 0 otherwise
-func Sign(value float64) float64 {
-	if value > 0 {
-		return 1
-	} else if value < 0 {
-		return -1
-	} else {
-		return 0
-	}
-}
-
-// IsNegative returns true if value < 0
-func IsNegative(value float64) bool {
-	return value < 0
-}
-
-// IsPositive returns true if value > 0
-func IsPositive(value float64) bool {
-	return value > 0
-}
-
-// IsNonNegative returns true if value >= 0
-func IsNonNegative(value float64) bool {
-	return value >= 0
-}
-
-// IsNonPositive returns true if value <= 0
-func IsNonPositive(value float64) bool {
-	return value <= 0
-}
-
-// InRange returns true if value lies between left and right border
-func InRange(value, left, right float64) bool {
-	if left > right {
-		left, right = right, left
-	}
-	return value >= left && value <= right
-}
-
-// IsWhole returns true if value is whole number
-func IsWhole(value float64) bool {
-	return Abs(math.Remainder(value, 1)) == 0
-}
-
-// IsNatural returns true if value is natural number (positive and whole)
-func IsNatural(value float64) bool {
-	return IsWhole(value) && IsPositive(value)
-}
--- a/vendor/github.com/asaskevich/govalidator/patterns.go
+++ b/vendor/github.com/asaskevich/govalidator/patterns.go
@@ -1,91 +0,0 @@
-package govalidator
-
-import "regexp"
-
-// Basic regular expressions for validating strings
-const (
-	Email          string = "^(((([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.?$"
-	CreditCard     string = "^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\\d{3})\\d{11})$"
-	ISBN10         string = "^(?:[0-9]{9}X|[0-9]{10})$"
-	ISBN13         string = "^(?:[0-9]{13})$"
-	UUID3          string = "^[0-9a-f]{8}-[0-9a-f]{4}-3[0-9a-f]{3}-[0-9a-f]{4}-[0-9a-f]{12}$"
-	UUID4          string = "^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
-	UUID5          string = "^[0-9a-f]{8}-[0-9a-f]{4}-5[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
-	UUID           string = "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
-	Alpha          string = "^[a-zA-Z]+$"
-	Alphanumeric   string = "^[a-zA-Z0-9]+$"
-	Numeric        string = "^[-+]?[0-9]+$"
-	Int            string = "^(?:[-+]?(?:0|[1-9][0-9]*))$"
-	Float          string = "^(?:[-+]?(?:[0-9]+))?(?:\\.[0-9]*)?(?:[eE][\\+\\-]?(?:[0-9]+))?$"
-	Hexadecimal    string = "^[0-9a-fA-F]+$"
-	Hexcolor       string = "^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$"
-	RGBcolor       string = "^rgb\\(\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*\\)$"
-	ASCII          string = "^[\x00-\x7F]+$"
-	Multibyte      string = "[^\x00-\x7F]"
-	FullWidth      string = "[^\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
-	HalfWidth      string = "[\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"
-	Base64         string = "^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$"
-	PrintableASCII string = "^[\x20-\x7E]+$"
-	DataURI        string = "^data:.+\\/(.+);base64$"
-	Latitude       string = "^[-+]?([1-8]?\\d(\\.\\d+)?|90(\\.0+)?)$"
-	Longitude      string = "^[-+]?(180(\\.0+)?|((1[0-7]\\d)|([1-9]?\\d))(\\.\\d+)?)$"
-	DNSName        string = `^([a-zA-Z0-9]{1}[a-zA-Z0-9_-]{0,62}){1}(\.[a-zA-Z0-9]{1}[a-zA-Z0-9_-]{1,62})*$`
-	IP             string = `(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))`
-	URLSchema      string = `((ftp|tcp|udp|wss?|https?):\/\/)`
-	URLUsername    string = `(\S+(:\S*)?@)`
-	Hostname       string = ``
-	URLPath        string = `((\/|\?|#)[^\s]*)`
-	URLPort        string = `(:(\d{1,5}))`
-	URLIP          string = `([1-9]\d?|1\d\d|2[01]\d|22[0-3])(\.(1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.([0-9]\d?|1\d\d|2[0-4]\d|25[0-4]))`
-	URLSubdomain   string = `((www\.)|([a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*))`
-	URL            string = `^` + URLSchema + `?` + URLUsername + `?` + `((` + URLIP + `|(\[` + IP + `\])|(([a-zA-Z0-9]([a-zA-Z0-9-]+)?[a-zA-Z0-9]([-\.][a-zA-Z0-9]+)*)|(` + URLSubdomain + `?))?(([a-zA-Z\x{00a1}-\x{ffff}0-9]+-?-?)*[a-zA-Z\x{00a1}-\x{ffff}0-9]+)(?:\.([a-zA-Z\x{00a1}-\x{ffff}]{1,}))?))` + URLPort + `?` + URLPath + `?$`
-	SSN            string = `^\d{3}[- ]?\d{2}[- ]?\d{4}$`
-	WinPath        string = `^[a-zA-Z]:\\(?:[^\\/:*?"<>|\r\n]+\\)*[^\\/:*?"<>|\r\n]*$`
-	UnixPath       string = `^(/[^/\x00]*)+/?$`
-	Semver         string = "^v?(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)(-(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(\\.(0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*)?(\\+[0-9a-zA-Z-]+(\\.[0-9a-zA-Z-]+)*)?$"
-	tagName        string = "valid"
-)
-
-// Used by IsFilePath func
-const (
-	// Unknown is unresolved OS type
-	Unknown = iota
-	// Win is Windows type
-	Win
-	// Unix is *nix OS types
-	Unix
-)
-
-var (
-	rxEmail          = regexp.MustCompile(Email)
-	rxCreditCard     = regexp.MustCompile(CreditCard)
-	rxISBN10         = regexp.MustCompile(ISBN10)
-	rxISBN13         = regexp.MustCompile(ISBN13)
-	rxUUID3          = regexp.MustCompile(UUID3)
-	rxUUID4          = regexp.MustCompile(UUID4)
-	rxUUID5          = regexp.MustCompile(UUID5)
-	rxUUID           = regexp.MustCompile(UUID)
-	rxAlpha          = regexp.MustCompile(Alpha)
-	rxAlphanumeric   = regexp.MustCompile(Alphanumeric)
-	rxNumeric        = regexp.MustCompile(Numeric)
-	rxInt            = regexp.MustCompile(Int)
-	rxFloat          = regexp.MustCompile(Float)
-	rxHexadecimal    = regexp.MustCompile(Hexadecimal)
-	rxHexcolor       = regexp.MustCompile(Hexcolor)
-	rxRGBcolor       = regexp.MustCompile(RGBcolor)
-	rxASCII          = regexp.MustCompile(ASCII)
-	rxPrintableASCII = regexp.MustCompile(PrintableASCII)
-	rxMultibyte      = regexp.MustCompile(Multibyte)
-	rxFullWidth      = regexp.MustCompile(FullWidth)
-	rxHalfWidth      = regexp.MustCompile(HalfWidth)
-	rxBase64         = regexp.MustCompile(Base64)
-	rxDataURI        = regexp.MustCompile(DataURI)
-	rxLatitude       = regexp.MustCompile(Latitude)
-	rxLongitude      = regexp.MustCompile(Longitude)
-	rxDNSName        = regexp.MustCompile(DNSName)
-	rxURL            = regexp.MustCompile(URL)
-	rxSSN            = regexp.MustCompile(SSN)
-	rxWinPath        = regexp.MustCompile(WinPath)
-	rxUnixPath       = regexp.MustCompile(UnixPath)
-	rxSemver         = regexp.MustCompile(Semver)
-)
--- a/vendor/github.com/asaskevich/govalidator/types.go
+++ b/vendor/github.com/asaskevich/govalidator/types.go
@@ -1,385 +0,0 @@
-package govalidator
-
-import (
-	"reflect"
-	"regexp"
-	"sync"
-)
-
-// Validator is a wrapper for a validator function that returns bool and accepts string.
-type Validator func(str string) bool
-
-// CustomTypeValidator is a wrapper for validator functions that returns bool and accepts any type.
-// The second parameter should be the context (in the case of validating a struct: the whole object being validated).
-type CustomTypeValidator func(i interface{}, o interface{}) bool
-
-// ParamValidator is a wrapper for validator functions that accepts additional parameters.
-type ParamValidator func(str string, params ...string) bool
-type tagOptionsMap map[string]string
-
-// UnsupportedTypeError is a wrapper for reflect.Type
-type UnsupportedTypeError struct {
-	Type reflect.Type
-}
-
-// stringValues is a slice of reflect.Value holding *reflect.StringValue.
-// It implements the methods to sort by string.
-type stringValues []reflect.Value
-
-// ParamTagMap is a map of functions accept variants parameters
-var ParamTagMap = map[string]ParamValidator{
-	"length":       ByteLength,
-	"runelength":   RuneLength,
-	"stringlength": StringLength,
-	"matches":      StringMatches,
-	"in":           isInRaw,
-}
-
-// ParamTagRegexMap maps param tags to their respective regexes.
-var ParamTagRegexMap = map[string]*regexp.Regexp{
-	"length":       regexp.MustCompile("^length\\((\\d+)\\|(\\d+)\\)$"),
-	"runelength":   regexp.MustCompile("^runelength\\((\\d+)\\|(\\d+)\\)$"),
-	"stringlength": regexp.MustCompile("^stringlength\\((\\d+)\\|(\\d+)\\)$"),
-	"in":           regexp.MustCompile(`^in\((.*)\)`),
-	"matches":      regexp.MustCompile(`^matches\((.+)\)$`),
-}
-
-type customTypeTagMap struct {
-	validators map[string]CustomTypeValidator
-
-	sync.RWMutex
-}
-
-func (tm *customTypeTagMap) Get(name string) (CustomTypeValidator, bool) {
-	tm.RLock()
-	defer tm.RUnlock()
-	v, ok := tm.validators[name]
-	return v, ok
-}
-
-func (tm *customTypeTagMap) Set(name string, ctv CustomTypeValidator) {
-	tm.Lock()
-	defer tm.Unlock()
-	tm.validators[name] = ctv
-}
-
-// CustomTypeTagMap is a map of functions that can be used as tags for ValidateStruct function.
-// Use this to validate compound or custom types that need to be handled as a whole, e.g.
-// `type UUID [16]byte` (this would be handled as an array of bytes).
-var CustomTypeTagMap = &customTypeTagMap{validators: make(map[string]CustomTypeValidator)}
-
-// TagMap is a map of functions, that can be used as tags for ValidateStruct function.
-var TagMap = map[string]Validator{
-	"email":          IsEmail,
-	"url":            IsURL,
-	"dialstring":     IsDialString,
-	"requrl":         IsRequestURL,
-	"requri":         IsRequestURI,
-	"alpha":          IsAlpha,
-	"utfletter":      IsUTFLetter,
-	"alphanum":       IsAlphanumeric,
-	"utfletternum":   IsUTFLetterNumeric,
-	"numeric":        IsNumeric,
-	"utfnumeric":     IsUTFNumeric,
-	"utfdigit":       IsUTFDigit,
-	"hexadecimal":    IsHexadecimal,
-	"hexcolor":       IsHexcolor,
-	"rgbcolor":       IsRGBcolor,
-	"lowercase":      IsLowerCase,
-	"uppercase":      IsUpperCase,
-	"int":            IsInt,
-	"float":          IsFloat,
-	"null":           IsNull,
-	"uuid":           IsUUID,
-	"uuidv3":         IsUUIDv3,
-	"uuidv4":         IsUUIDv4,
-	"uuidv5":         IsUUIDv5,
-	"creditcard":     IsCreditCard,
-	"isbn10":         IsISBN10,
-	"isbn13":         IsISBN13,
-	"json":           IsJSON,
-	"multibyte":      IsMultibyte,
-	"ascii":          IsASCII,
-	"printableascii": IsPrintableASCII,
-	"fullwidth":      IsFullWidth,
-	"halfwidth":      IsHalfWidth,
-	"variablewidth":  IsVariableWidth,
-	"base64":         IsBase64,
-	"datauri":        IsDataURI,
-	"ip":             IsIP,
-	"port":           IsPort,
-	"ipv4":           IsIPv4,
-	"ipv6":           IsIPv6,
-	"dns":            IsDNSName,
-	"host":           IsHost,
-	"mac":            IsMAC,
-	"latitude":       IsLatitude,
-	"longitude":      IsLongitude,
-	"ssn":            IsSSN,
-	"semver":         IsSemver,
-	"rfc3339":        IsRFC3339,
-	"ISO3166Alpha2":  IsISO3166Alpha2,
-	"ISO3166Alpha3":  IsISO3166Alpha3,
-}
-
-// ISO3166Entry stores country codes
-type ISO3166Entry struct {
-	EnglishShortName string
-	FrenchShortName  string
-	Alpha2Code       string
-	Alpha3Code       string
-	Numeric          string
-}
-
-//ISO3166List based on https://www.iso.org/obp/ui/#search/code/ Code Type "Officially Assigned Codes"
-var ISO3166List = []ISO3166Entry{
-	{"Afghanistan", "Afghanistan (l')", "AF", "AFG", "004"},
-	{"Albania", "Albanie (l')", "AL", "ALB", "008"},
-	{"Antarctica", "Antarctique (l')", "AQ", "ATA", "010"},
-	{"Algeria", "Algérie (l')", "DZ", "DZA", "012"},
-	{"American Samoa", "Samoa américaines (les)", "AS", "ASM", "016"},
-	{"Andorra", "Andorre (l')", "AD", "AND", "020"},
-	{"Angola", "Angola (l')", "AO", "AGO", "024"},
-	{"Antigua and Barbuda", "Antigua-et-Barbuda", "AG", "ATG", "028"},
-	{"Azerbaijan", "Azerbaïdjan (l')", "AZ", "AZE", "031"},
-	{"Argentina", "Argentine (l')", "AR", "ARG", "032"},
-	{"Australia", "Australie (l')", "AU", "AUS", "036"},
-	{"Austria", "Autriche (l')", "AT", "AUT", "040"},
-	{"Bahamas (the)", "Bahamas (les)", "BS", "BHS", "044"},
-	{"Bahrain", "Bahreïn", "BH", "BHR", "048"},
-	{"Bangladesh", "Bangladesh (le)", "BD", "BGD", "050"},
-	{"Armenia", "Arménie (l')", "AM", "ARM", "051"},
-	{"Barbados", "Barbade (la)", "BB", "BRB", "052"},
-	{"Belgium", "Belgique (la)", "BE", "BEL", "056"},
-	{"Bermuda", "Bermudes (les)", "BM", "BMU", "060"},
-	{"Bhutan", "Bhoutan (le)", "BT", "BTN", "064"},
-	{"Bolivia (Plurinational State of)", "Bolivie (État plurinational de)", "BO", "BOL", "068"},
-	{"Bosnia and Herzegovina", "Bosnie-Herzégovine (la)", "BA", "BIH", "070"},
-	{"Botswana", "Botswana (le)", "BW", "BWA", "072"},
-	{"Bouvet Island", "Bouvet (l'Île)", "BV", "BVT", "074"},
-	{"Brazil", "Brésil (le)", "BR", "BRA", "076"},
-	{"Belize", "Belize (le)", "BZ", "BLZ", "084"},
-	{"British Indian Ocean Territory (the)", "Indien (le Territoire britannique de l'océan)", "IO", "IOT", "086"},
-	{"Solomon Islands", "Salomon (Îles)", "SB", "SLB", "090"},
-	{"Virgin Islands (British)", "Vierges britanniques (les Îles)", "VG", "VGB", "092"},
-	{"Brunei Darussalam", "Brunéi Darussalam (le)", "BN", "BRN", "096"},
-	{"Bulgaria", "Bulgarie (la)", "BG", "BGR", "100"},
-	{"Myanmar", "Myanmar (le)", "MM", "MMR", "104"},
-	{"Burundi", "Burundi (le)", "BI", "BDI", "108"},
-	{"Belarus", "Bélarus (le)", "BY", "BLR", "112"},
-	{"Cambodia", "Cambodge (le)", "KH", "KHM", "116"},
-	{"Cameroon", "Cameroun (le)", "CM", "CMR", "120"},
-	{"Canada", "Canada (le)", "CA", "CAN", "124"},
-	{"Cabo Verde", "Cabo Verde", "CV", "CPV", "132"},
-	{"Cayman Islands (the)", "Caïmans (les Îles)", "KY", "CYM", "136"},
-	{"Central African Republic (the)", "République centrafricaine (la)", "CF", "CAF", "140"},
-	{"Sri Lanka", "Sri Lanka", "LK", "LKA", "144"},
-	{"Chad", "Tchad (le)", "TD", "TCD", "148"},
-	{"Chile", "Chili (le)", "CL", "CHL", "152"},
-	{"China", "Chine (la)", "CN", "CHN", "156"},
-	{"Taiwan (Province of China)", "Taïwan (Province de Chine)", "TW", "TWN", "158"},
-	{"Christmas Island", "Christmas (l'Île)", "CX", "CXR", "162"},
-	{"Cocos (Keeling) Islands (the)", "Cocos (les Îles)/ Keeling (les Îles)", "CC", "CCK", "166"},
-	{"Colombia", "Colombie (la)", "CO", "COL", "170"},
-	{"Comoros (the)", "Comores (les)", "KM", "COM", "174"},
-	{"Mayotte", "Mayotte", "YT", "MYT", "175"},
-	{"Congo (the)", "Congo (le)", "CG", "COG", "178"},
-	{"Congo (the Democratic Republic of the)", "Congo (la République démocratique du)", "CD", "COD", "180"},
-	{"Cook Islands (the)", "Cook (les Îles)", "CK", "COK", "184"},
-	{"Costa Rica", "Costa Rica (le)", "CR", "CRI", "188"},
-	{"Croatia", "Croatie (la)", "HR", "HRV", "191"},
-	{"Cuba", "Cuba", "CU", "CUB", "192"},
-	{"Cyprus", "Chypre", "CY", "CYP", "196"},
-	{"Czech Republic (the)", "tchèque (la République)", "CZ", "CZE", "203"},
-	{"Benin", "Bénin (le)", "BJ", "BEN", "204"},
-	{"Denmark", "Danemark (le)", "DK", "DNK", "208"},
-	{"Dominica", "Dominique (la)", "DM", "DMA", "212"},
-	{"Dominican Republic (the)", "dominicaine (la République)", "DO", "DOM", "214"},
-	{"Ecuador", "Équateur (l')", "EC", "ECU", "218"},
-	{"El Salvador", "El Salvador", "SV", "SLV", "222"},
-	{"Equatorial Guinea", "Guinée équatoriale (la)", "GQ", "GNQ", "226"},
-	{"Ethiopia", "Éthiopie (l')", "ET", "ETH", "231"},
-	{"Eritrea", "Érythrée (l')", "ER", "ERI", "232"},
-	{"Estonia", "Estonie (l')", "EE", "EST", "233"},
-	{"Faroe Islands (the)", "Féroé (les Îles)", "FO", "FRO", "234"},
-	{"Falkland Islands (the) [Malvinas]", "Falkland (les Îles)/Malouines (les Îles)", "FK", "FLK", "238"},
-	{"South Georgia and the South Sandwich Islands", "Géorgie du Sud-et-les Îles Sandwich du Sud (la)", "GS", "SGS", "239"},
-	{"Fiji", "Fidji (les)", "FJ", "FJI", "242"},
-	{"Finland", "Finlande (la)", "FI", "FIN", "246"},
-	{"Åland Islands", "Åland(les Îles)", "AX", "ALA", "248"},
-	{"France", "France (la)", "FR", "FRA", "250"},
-	{"French Guiana", "Guyane française (la )", "GF", "GUF", "254"},
-	{"French Polynesia", "Polynésie française (la)", "PF", "PYF", "258"},
-	{"French Southern Territories (the)", "Terres australes françaises (les)", "TF", "ATF", "260"},
-	{"Djibouti", "Djibouti", "DJ", "DJI", "262"},
-	{"Gabon", "Gabon (le)", "GA", "GAB", "266"},
-	{"Georgia", "Géorgie (la)", "GE", "GEO", "268"},
-	{"Gambia (the)", "Gambie (la)", "GM", "GMB", "270"},
-	{"Palestine, State of", "Palestine, État de", "PS", "PSE", "275"},
-	{"Germany", "Allemagne (l')", "DE", "DEU", "276"},
-	{"Ghana", "Ghana (le)", "GH", "GHA", "288"},
-	{"Gibraltar", "Gibraltar", "GI", "GIB", "292"},
-	{"Kiribati", "Kiribati", "KI", "KIR", "296"},
-	{"Greece", "Grèce (la)", "GR", "GRC", "300"},
-	{"Greenland", "Groenland (le)", "GL", "GRL", "304"},
-	{"Grenada", "Grenade (la)", "GD", "GRD", "308"},
-	{"Guadeloupe", "Guadeloupe (la)", "GP", "GLP", "312"},
-	{"Guam", "Guam", "GU", "GUM", "316"},
-	{"Guatemala", "Guatemala (le)", "GT", "GTM", "320"},
-	{"Guinea", "Guinée (la)", "GN", "GIN", "324"},
-	{"Guyana", "Guyana (le)", "GY", "GUY", "328"},
-	{"Haiti", "Haïti", "HT", "HTI", "332"},
-	{"Heard Island and McDonald Islands", "Heard-et-Îles MacDonald (l'Île)", "HM", "HMD", "334"},
-	{"Holy See (the)", "Saint-Siège (le)", "VA", "VAT", "336"},
-	{"Honduras", "Honduras (le)", "HN", "HND", "340"},
-	{"Hong Kong", "Hong Kong", "HK", "HKG", "344"},
-	{"Hungary", "Hongrie (la)", "HU", "HUN", "348"},
-	{"Iceland", "Islande (l')", "IS", "ISL", "352"},
-	{"India", "Inde (l')", "IN", "IND", "356"},
-	{"Indonesia", "Indonésie (l')", "ID", "IDN", "360"},
-	{"Iran (Islamic Republic of)", "Iran (République Islamique d')", "IR", "IRN", "364"},
-	{"Iraq", "Iraq (l')", "IQ", "IRQ", "368"},
-	{"Ireland", "Irlande (l')", "IE", "IRL", "372"},
-	{"Israel", "Israël", "IL", "ISR", "376"},
-	{"Italy", "Italie (l')", "IT", "ITA", "380"},
-	{"Côte d'Ivoire", "Côte d'Ivoire (la)", "CI", "CIV", "384"},
-	{"Jamaica", "Jamaïque (la)", "JM", "JAM", "388"},
-	{"Japan", "Japon (le)", "JP", "JPN", "392"},
-	{"Kazakhstan", "Kazakhstan (le)", "KZ", "KAZ", "398"},
-	{"Jordan", "Jordanie (la)", "JO", "JOR", "400"},
-	{"Kenya", "Kenya (le)", "KE", "KEN", "404"},
-	{"Korea (the Democratic People's Republic of)", "Corée (la République populaire démocratique de)", "KP", "PRK", "408"},
-	{"Korea (the Republic of)", "Corée (la République de)", "KR", "KOR", "410"},
-	{"Kuwait", "Koweït (le)", "KW", "KWT", "414"},
-	{"Kyrgyzstan", "Kirghizistan (le)", "KG", "KGZ", "417"},
-	{"Lao People's Democratic Republic (the)", "Lao, République démocratique populaire", "LA", "LAO", "418"},
-	{"Lebanon", "Liban (le)", "LB", "LBN", "422"},
-	{"Lesotho", "Lesotho (le)", "LS", "LSO", "426"},
-	{"Latvia", "Lettonie (la)", "LV", "LVA", "428"},
-	{"Liberia", "Libéria (le)", "LR", "LBR", "430"},
-	{"Libya", "Libye (la)", "LY", "LBY", "434"},
-	{"Liechtenstein", "Liechtenstein (le)", "LI", "LIE", "438"},
-	{"Lithuania", "Lituanie (la)", "LT", "LTU", "440"},
-	{"Luxembourg", "Luxembourg (le)", "LU", "LUX", "442"},
-	{"Macao", "Macao", "MO", "MAC", "446"},
-	{"Madagascar", "Madagascar", "MG", "MDG", "450"},
-	{"Malawi", "Malawi (le)", "MW", "MWI", "454"},
-	{"Malaysia", "Malaisie (la)", "MY", "MYS", "458"},
-	{"Maldives", "Maldives (les)", "MV", "MDV", "462"},
-	{"Mali", "Mali (le)", "ML", "MLI", "466"},
-	{"Malta", "Malte", "MT", "MLT", "470"},
-	{"Martinique", "Martinique (la)", "MQ", "MTQ", "474"},
-	{"Mauritania", "Mauritanie (la)", "MR", "MRT", "478"},
-	{"Mauritius", "Maurice", "MU", "MUS", "480"},
-	{"Mexico", "Mexique (le)", "MX", "MEX", "484"},
-	{"Monaco", "Monaco", "MC", "MCO", "492"},
-	{"Mongolia", "Mongolie (la)", "MN", "MNG", "496"},
-	{"Moldova (the Republic of)", "Moldova , République de", "MD", "MDA", "498"},
-	{"Montenegro", "Monténégro (le)", "ME", "MNE", "499"},
-	{"Montserrat", "Montserrat", "MS", "MSR", "500"},
-	{"Morocco", "Maroc (le)", "MA", "MAR", "504"},
-	{"Mozambique", "Mozambique (le)", "MZ", "MOZ", "508"},
-	{"Oman", "Oman", "OM", "OMN", "512"},
-	{"Namibia", "Namibie (la)", "NA", "NAM", "516"},
-	{"Nauru", "Nauru", "NR", "NRU", "520"},
-	{"Nepal", "Népal (le)", "NP", "NPL", "524"},
-	{"Netherlands (the)", "Pays-Bas (les)", "NL", "NLD", "528"},
-	{"Curaçao", "Curaçao", "CW", "CUW", "531"},
-	{"Aruba", "Aruba", "AW", "ABW", "533"},
-	{"Sint Maarten (Dutch part)", "Saint-Martin (partie néerlandaise)", "SX", "SXM", "534"},
-	{"Bonaire, Sint Eustatius and Saba", "Bonaire, Saint-Eustache et Saba", "BQ", "BES", "535"},
-	{"New Caledonia", "Nouvelle-Calédonie (la)", "NC", "NCL", "540"},
-	{"Vanuatu", "Vanuatu (le)", "VU", "VUT", "548"},
-	{"New Zealand", "Nouvelle-Zélande (la)", "NZ", "NZL", "554"},
-	{"Nicaragua", "Nicaragua (le)", "NI", "NIC", "558"},
-	{"Niger (the)", "Niger (le)", "NE", "NER", "562"},
-	{"Nigeria", "Nigéria (le)", "NG", "NGA", "566"},
-	{"Niue", "Niue", "NU", "NIU", "570"},
-	{"Norfolk Island", "Norfolk (l'Île)", "NF", "NFK", "574"},
-	{"Norway", "Norvège (la)", "NO", "NOR", "578"},
-	{"Northern Mariana Islands (the)", "Mariannes du Nord (les Îles)", "MP", "MNP", "580"},
-	{"United States Minor Outlying Islands (the)", "Îles mineures éloignées des États-Unis (les)", "UM", "UMI", "581"},
-	{"Micronesia (Federated States of)", "Micronésie (États fédérés de)", "FM", "FSM", "583"},
-	{"Marshall Islands (the)", "Marshall (Îles)", "MH", "MHL", "584"},
-	{"Palau", "Palaos (les)", "PW", "PLW", "585"},
-	{"Pakistan", "Pakistan (le)", "PK", "PAK", "586"},
-	{"Panama", "Panama (le)", "PA", "PAN", "591"},
-	{"Papua New Guinea", "Papouasie-Nouvelle-Guinée (la)", "PG", "PNG", "598"},
-	{"Paraguay", "Paraguay (le)", "PY", "PRY", "600"},
-	{"Peru", "Pérou (le)", "PE", "PER", "604"},
-	{"Philippines (the)", "Philippines (les)", "PH", "PHL", "608"},
-	{"Pitcairn", "Pitcairn", "PN", "PCN", "612"},
-	{"Poland", "Pologne (la)", "PL", "POL", "616"},
-	{"Portugal", "Portugal (le)", "PT", "PRT", "620"},
-	{"Guinea-Bissau", "Guinée-Bissau (la)", "GW", "GNB", "624"},
-	{"Timor-Leste", "Timor-Leste (le)", "TL", "TLS", "626"},
-	{"Puerto Rico", "Porto Rico", "PR", "PRI", "630"},
-	{"Qatar", "Qatar (le)", "QA", "QAT", "634"},
-	{"Réunion", "Réunion (La)", "RE", "REU", "638"},
-	{"Romania", "Roumanie (la)", "RO", "ROU", "642"},
-	{"Russian Federation (the)", "Russie (la Fédération de)", "RU", "RUS", "643"},
-	{"Rwanda", "Rwanda (le)", "RW", "RWA", "646"},
-	{"Saint Barthélemy", "Saint-Barthélemy", "BL", "BLM", "652"},
-	{"Saint Helena, Ascension and Tristan da Cunha", "Sainte-Hélène, Ascension et Tristan da Cunha", "SH", "SHN", "654"},
-	{"Saint Kitts and Nevis", "Saint-Kitts-et-Nevis", "KN", "KNA", "659"},
-	{"Anguilla", "Anguilla", "AI", "AIA", "660"},
-	{"Saint Lucia", "Sainte-Lucie", "LC", "LCA", "662"},
-	{"Saint Martin (French part)", "Saint-Martin (partie française)", "MF", "MAF", "663"},
-	{"Saint Pierre and Miquelon", "Saint-Pierre-et-Miquelon", "PM", "SPM", "666"},
-	{"Saint Vincent and the Grenadines", "Saint-Vincent-et-les Grenadines", "VC", "VCT", "670"},
-	{"San Marino", "Saint-Marin", "SM", "SMR", "674"},
-	{"Sao Tome and Principe", "Sao Tomé-et-Principe", "ST", "STP", "678"},
-	{"Saudi Arabia", "Arabie saoudite (l')", "SA", "SAU", "682"},
-	{"Senegal", "Sénégal (le)", "SN", "SEN", "686"},
-	{"Serbia", "Serbie (la)", "RS", "SRB", "688"},
-	{"Seychelles", "Seychelles (les)", "SC", "SYC", "690"},
-	{"Sierra Leone", "Sierra Leone (la)", "SL", "SLE", "694"},
-	{"Singapore", "Singapour", "SG", "SGP", "702"},
-	{"Slovakia", "Slovaquie (la)", "SK", "SVK", "703"},
-	{"Viet Nam", "Viet Nam (le)", "VN", "VNM", "704"},
-	{"Slovenia", "Slovénie (la)", "SI", "SVN", "705"},
-	{"Somalia", "Somalie (la)", "SO", "SOM", "706"},
-	{"South Africa", "Afrique du Sud (l')", "ZA", "ZAF", "710"},
-	{"Zimbabwe", "Zimbabwe (le)", "ZW", "ZWE", "716"},
-	{"Spain", "Espagne (l')", "ES", "ESP", "724"},
-	{"South Sudan", "Soudan du Sud (le)", "SS", "SSD", "728"},
-	{"Sudan (the)", "Soudan (le)", "SD", "SDN", "729"},
-	{"Western Sahara*", "Sahara occidental (le)*", "EH", "ESH", "732"},
-	{"Suriname", "Suriname (le)", "SR", "SUR", "740"},
-	{"Svalbard and Jan Mayen", "Svalbard et l'Île Jan Mayen (le)", "SJ", "SJM", "744"},
-	{"Swaziland", "Swaziland (le)", "SZ", "SWZ", "748"},
-	{"Sweden", "Suède (la)", "SE", "SWE", "752"},
-	{"Switzerland", "Suisse (la)", "CH", "CHE", "756"},
-	{"Syrian Arab Republic", "République arabe syrienne (la)", "SY", "SYR", "760"},
-	{"Tajikistan", "Tadjikistan (le)", "TJ", "TJK", "762"},
-	{"Thailand", "Thaïlande (la)", "TH", "THA", "764"},
-	{"Togo", "Togo (le)", "TG", "TGO", "768"},
-	{"Tokelau", "Tokelau (les)", "TK", "TKL", "772"},
-	{"Tonga", "Tonga (les)", "TO", "TON", "776"},
-	{"Trinidad and Tobago", "Trinité-et-Tobago (la)", "TT", "TTO", "780"},
-	{"United Arab Emirates (the)", "Émirats arabes unis (les)", "AE", "ARE", "784"},
-	{"Tunisia", "Tunisie (la)", "TN", "TUN", "788"},
-	{"Turkey", "Turquie (la)", "TR", "TUR", "792"},
-	{"Turkmenistan", "Turkménistan (le)", "TM", "TKM", "795"},
-	{"Turks and Caicos Islands (the)", "Turks-et-Caïcos (les Îles)", "TC", "TCA", "796"},
-	{"Tuvalu", "Tuvalu (les)", "TV", "TUV", "798"},
-	{"Uganda", "Ouganda (l')", "UG", "UGA", "800"},
-	{"Ukraine", "Ukraine (l')", "UA", "UKR", "804"},
-	{"Macedonia (the former Yugoslav Republic of)", "Macédoine (l'ex‑République yougoslave de)", "MK", "MKD", "807"},
-	{"Egypt", "Égypte (l')", "EG", "EGY", "818"},
-	{"United Kingdom of Great Britain and Northern Ireland (the)", "Royaume-Uni de Grande-Bretagne et d'Irlande du Nord (le)", "GB", "GBR", "826"},
-	{"Guernsey", "Guernesey", "GG", "GGY", "831"},
-	{"Jersey", "Jersey", "JE", "JEY", "832"},
-	{"Isle of Man", "Île de Man", "IM", "IMN", "833"},
-	{"Tanzania, United Republic of", "Tanzanie, République-Unie de", "TZ", "TZA", "834"},
-	{"United States of America (the)", "États-Unis d'Amérique (les)", "US", "USA", "840"},
-	{"Virgin Islands (U.S.)", "Vierges des États-Unis (les Îles)", "VI", "VIR", "850"},
-	{"Burkina Faso", "Burkina Faso (le)", "BF", "BFA", "854"},
-	{"Uruguay", "Uruguay (l')", "UY", "URY", "858"},
-	{"Uzbekistan", "Ouzbékistan (l')", "UZ", "UZB", "860"},
-	{"Venezuela (Bolivarian Republic of)", "Venezuela (République bolivarienne du)", "VE", "VEN", "862"},
-	{"Wallis and Futuna", "Wallis-et-Futuna", "WF", "WLF", "876"},
-	{"Samoa", "Samoa (le)", "WS", "WSM", "882"},
-	{"Yemen", "Yémen (le)", "YE", "YEM", "887"},
-	{"Zambia", "Zambie (la)", "ZM", "ZMB", "894"},
-}
--- a/vendor/github.com/asaskevich/govalidator/utils.go
+++ b/vendor/github.com/asaskevich/govalidator/utils.go
@@ -1,268 +0,0 @@
-package govalidator
-
-import (
-	"errors"
-	"fmt"
-	"html"
-	"math"
-	"path"
-	"regexp"
-	"strings"
-	"unicode"
-	"unicode/utf8"
-)
-
-// Contains check if the string contains the substring.
-func Contains(str, substring string) bool {
-	return strings.Contains(str, substring)
-}
-
-// Matches check if string matches the pattern (pattern is regular expression)
-// In case of error return false
-func Matches(str, pattern string) bool {
-	match, _ := regexp.MatchString(pattern, str)
-	return match
-}
-
-// LeftTrim trim characters from the left-side of the input.
-// If second argument is empty, it's will be remove leading spaces.
-func LeftTrim(str, chars string) string {
-	pattern := ""
-	if chars == "" {
-		pattern = "^\\s+"
-	} else {
-		pattern = "^[" + chars + "]+"
-	}
-	r, _ := regexp.Compile(pattern)
-	return string(r.ReplaceAll([]byte(str), []byte("")))
-}
-
-// RightTrim trim characters from the right-side of the input.
-// If second argument is empty, it's will be remove spaces.
-func RightTrim(str, chars string) string {
-	pattern := ""
-	if chars == "" {
-		pattern = "\\s+$"
-	} else {
-		pattern = "[" + chars + "]+$"
-	}
-	r, _ := regexp.Compile(pattern)
-	return string(r.ReplaceAll([]byte(str), []byte("")))
-}
-
-// Trim trim characters from both sides of the input.
-// If second argument is empty, it's will be remove spaces.
-func Trim(str, chars string) string {
-	return LeftTrim(RightTrim(str, chars), chars)
-}
-
-// WhiteList remove characters that do not appear in the whitelist.
-func WhiteList(str, chars string) string {
-	pattern := "[^" + chars + "]+"
-	r, _ := regexp.Compile(pattern)
-	return string(r.ReplaceAll([]byte(str), []byte("")))
-}
-
-// BlackList remove characters that appear in the blacklist.
-func BlackList(str, chars string) string {
-	pattern := "[" + chars + "]+"
-	r, _ := regexp.Compile(pattern)
-	return string(r.ReplaceAll([]byte(str), []byte("")))
-}
-
-// StripLow remove characters with a numerical value < 32 and 127, mostly control characters.
-// If keep_new_lines is true, newline characters are preserved (\n and \r, hex 0xA and 0xD).
-func StripLow(str string, keepNewLines bool) string {
-	chars := ""
-	if keepNewLines {
-		chars = "\x00-\x09\x0B\x0C\x0E-\x1F\x7F"
-	} else {
-		chars = "\x00-\x1F\x7F"
-	}
-	return BlackList(str, chars)
-}
-
-// ReplacePattern replace regular expression pattern in string
-func ReplacePattern(str, pattern, replace string) string {
-	r, _ := regexp.Compile(pattern)
-	return string(r.ReplaceAll([]byte(str), []byte(replace)))
-}
-
-// Escape replace <, >, & and " with HTML entities.
-var Escape = html.EscapeString
-
-func addSegment(inrune, segment []rune) []rune {
-	if len(segment) == 0 {
-		return inrune
-	}
-	if len(inrune) != 0 {
-		inrune = append(inrune, '_')
-	}
-	inrune = append(inrune, segment...)
-	return inrune
-}
-
-// UnderscoreToCamelCase converts from underscore separated form to camel case form.
-// Ex.: my_func => MyFunc
-func UnderscoreToCamelCase(s string) string {
-	return strings.Replace(strings.Title(strings.Replace(strings.ToLower(s), "_", " ", -1)), " ", "", -1)
-}
-
-// CamelCaseToUnderscore converts from camel case form to underscore separated form.
-// Ex.: MyFunc => my_func
-func CamelCaseToUnderscore(str string) string {
-	var output []rune
-	var segment []rune
-	for _, r := range str {
-		if !unicode.IsLower(r) {
-			output = addSegment(output, segment)
-			segment = nil
-		}
-		segment = append(segment, unicode.ToLower(r))
-	}
-	output = addSegment(output, segment)
-	return string(output)
-}
-
-// Reverse return reversed string
-func Reverse(s string) string {
-	r := []rune(s)
-	for i, j := 0, len(r)-1; i < j; i, j = i+1, j-1 {
-		r[i], r[j] = r[j], r[i]
-	}
-	return string(r)
-}
-
-// GetLines split string by "\n" and return array of lines
-func GetLines(s string) []string {
-	return strings.Split(s, "\n")
-}
-
-// GetLine return specified line of multiline string
-func GetLine(s string, index int) (string, error) {
-	lines := GetLines(s)
-	if index < 0 || index >= len(lines) {
-		return "", errors.New("line index out of bounds")
-	}
-	return lines[index], nil
-}
-
-// RemoveTags remove all tags from HTML string
-func RemoveTags(s string) string {
-	return ReplacePattern(s, "<[^>]*>", "")
-}
-
-// SafeFileName return safe string that can be used in file names
-func SafeFileName(str string) string {
-	name := strings.ToLower(str)
-	name = path.Clean(path.Base(name))
-	name = strings.Trim(name, " ")
-	separators, err := regexp.Compile(`[ &_=+:]`)
-	if err == nil {
-		name = separators.ReplaceAllString(name, "-")
-	}
-	legal, err := regexp.Compile(`[^[:alnum:]-.]`)
-	if err == nil {
-		name = legal.ReplaceAllString(name, "")
-	}
-	for strings.Contains(name, "--") {
-		name = strings.Replace(name, "--", "-", -1)
-	}
-	return name
-}
-
-// NormalizeEmail canonicalize an email address.
-// The local part of the email address is lowercased for all domains; the hostname is always lowercased and
-// the local part of the email address is always lowercased for hosts that are known to be case-insensitive (currently only GMail).
-// Normalization follows special rules for known providers: currently, GMail addresses have dots removed in the local part and
-// are stripped of tags (e.g. some.one+tag@gmail.com becomes someone@gmail.com) and all @googlemail.com addresses are
-// normalized to @gmail.com.
-func NormalizeEmail(str string) (string, error) {
-	if !IsEmail(str) {
-		return "", fmt.Errorf("%s is not an email", str)
-	}
-	parts := strings.Split(str, "@")
-	parts[0] = strings.ToLower(parts[0])
-	parts[1] = strings.ToLower(parts[1])
-	if parts[1] == "gmail.com" || parts[1] == "googlemail.com" {
-		parts[1] = "gmail.com"
-		parts[0] = strings.Split(ReplacePattern(parts[0], `\.`, ""), "+")[0]
-	}
-	return strings.Join(parts, "@"), nil
-}
-
-// Truncate a string to the closest length without breaking words.
-func Truncate(str string, length int, ending string) string {
-	var aftstr, befstr string
-	if len(str) > length {
-		words := strings.Fields(str)
-		before, present := 0, 0
-		for i := range words {
-			befstr = aftstr
-			before = present
-			aftstr = aftstr + words[i] + " "
-			present = len(aftstr)
-			if present > length && i != 0 {
-				if (length - before) < (present - length) {
-					return Trim(befstr, " /\\.,\"'#!?&@+-") + ending
-				}
-				return Trim(aftstr, " /\\.,\"'#!?&@+-") + ending
-			}
-		}
-	}
-
-	return str
-}
-
-// Pad left side of string if size of string is less then indicated pad length
-func PadLeft(str string, padStr string, padLen int) string {
-	return buildPadStr(str, padStr, padLen, true, false)
-}
-
-// Pad right side of string if size of string is less then indicated pad length
-func PadRight(str string, padStr string, padLen int) string {
-	return buildPadStr(str, padStr, padLen, false, true)
-}
-
-// Pad both sides of string if size of string is less then indicated pad length
-func PadBoth(str string, padStr string, padLen int) string {
-	return buildPadStr(str, padStr, padLen, true, true)
-}
-
-// Pad string either left, right or both sides, not the padding string can be unicode and more then one
-// character
-func buildPadStr(str string, padStr string, padLen int, padLeft bool, padRight bool) string {
-
-	// When padded length is less then the current string size
-	if padLen < utf8.RuneCountInString(str) {
-		return str
-	}
-
-	padLen -= utf8.RuneCountInString(str)
-
-	targetLen := padLen
-
-	targetLenLeft := targetLen
-	targetLenRight := targetLen
-	if padLeft && padRight {
-		targetLenLeft = padLen / 2
-		targetLenRight = padLen - targetLenLeft
-	}
-
-	strToRepeatLen := utf8.RuneCountInString(padStr)
-
-	repeatTimes := int(math.Ceil(float64(targetLen) / float64(strToRepeatLen)))
-	repeatedString := strings.Repeat(padStr, repeatTimes)
-
-	leftSide := ""
-	if padLeft {
-		leftSide = repeatedString[0:targetLenLeft]
-	}
-
-	rightSide := ""
-	if padRight {
-		rightSide = repeatedString[0:targetLenRight]
-	}
-
-	return leftSide + str + rightSide
-}
--- a/vendor/github.com/asaskevich/govalidator/validator.go
+++ b/vendor/github.com/asaskevich/govalidator/validator.go
--- a/vendor/github.com/asaskevich/govalidator/wercker.yml
+++ b/vendor/github.com/asaskevich/govalidator/wercker.yml
@@ -1,15 +0,0 @@
-box: golang
-build:
-  steps:
-    - setup-go-workspace
-
-    - script:
-        name: go get
-        code: |
-          go version
-          go get -t ./...
-
-    - script:
-        name: go test
-        code: |
-          go test -race ./...
--- a/vendor/github.com/gliderlabs/ssh/LICENSE
+++ b/vendor/github.com/gliderlabs/ssh/LICENSE
@@ -1,27 +0,0 @@
-Copyright (c) 2016 Glider Labs. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Glider Labs nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--- a/vendor/github.com/gliderlabs/ssh/README.md
+++ b/vendor/github.com/gliderlabs/ssh/README.md
@@ -1,96 +0,0 @@
-# gliderlabs/ssh
-
-[![GoDoc](https://godoc.org/github.com/gliderlabs/ssh?status.svg)](https://godoc.org/github.com/gliderlabs/ssh) 
-[![CircleCI](https://img.shields.io/circleci/project/github/gliderlabs/ssh.svg)](https://circleci.com/gh/gliderlabs/ssh)
-[![Go Report Card](https://goreportcard.com/badge/github.com/gliderlabs/ssh)](https://goreportcard.com/report/github.com/gliderlabs/ssh) 
-[![OpenCollective](https://opencollective.com/ssh/sponsors/badge.svg)](#sponsors)
-[![Slack](http://slack.gliderlabs.com/badge.svg)](http://slack.gliderlabs.com) 
-[![Email Updates](https://img.shields.io/badge/updates-subscribe-yellow.svg)](https://app.convertkit.com/landing_pages/243312)
-
-> The Glider Labs SSH server package is dope.  &mdash;[@bradfitz](https://twitter.com/bradfitz), Go team member
-
-This Go package wraps the [crypto/ssh
-package](https://godoc.org/golang.org/x/crypto/ssh) with a higher-level API for
-building SSH servers. The goal of the API was to make it as simple as using
-[net/http](https://golang.org/pkg/net/http/), so the API is very similar:
-
-```
- package main
-
- import (
-     "github.com/gliderlabs/ssh"
-     "io"
-     "log"
- )
-
- func main() {
-     ssh.Handle(func(s ssh.Session) {
-         io.WriteString(s, "Hello world\n")
-     })  
-
-     log.Fatal(ssh.ListenAndServe(":2222", nil))
- }
-
-```
-This package was built by [@progrium](https://twitter.com/progrium) after working on nearly a dozen projects at Glider Labs using SSH and collaborating with [@shazow](https://twitter.com/shazow) (known for [ssh-chat](https://github.com/shazow/ssh-chat)).
-
-## Examples
-
-A bunch of great examples are in the `_examples` directory.
-
-## Usage
-
-[See GoDoc reference.](https://godoc.org/github.com/gliderlabs/ssh)
-
-## Contributing
-
-Pull requests are welcome! However, since this project is very much about API
-design, please submit API changes as issues to discuss before submitting PRs.
-
-Also, you can [join our Slack](http://slack.gliderlabs.com) to discuss as well.
-
-## Roadmap
-
-* Non-session channel handlers
-* Cleanup callback API
-* 1.0 release
-* High-level client?
-
-## Sponsors
-
-Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/ssh#sponsor)]
-
-<a href="https://opencollective.com/ssh/sponsor/0/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/1/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/2/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/3/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/4/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/5/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/5/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/6/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/6/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/7/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/7/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/8/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/8/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/9/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/9/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/10/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/10/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/11/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/11/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/12/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/12/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/13/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/13/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/14/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/14/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/15/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/15/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/16/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/16/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/17/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/17/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/18/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/18/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/19/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/19/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/20/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/20/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/21/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/21/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/22/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/22/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/23/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/23/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/24/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/24/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/25/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/25/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/26/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/26/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/27/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/27/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/28/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/28/avatar.svg"></a>
-<a href="https://opencollective.com/ssh/sponsor/29/website" target="_blank"><img src="https://opencollective.com/ssh/sponsor/29/avatar.svg"></a>
-
-## License
-
-BSD
--- a/vendor/github.com/gliderlabs/ssh/agent.go
+++ b/vendor/github.com/gliderlabs/ssh/agent.go
@@ -1,81 +0,0 @@
-package ssh
-
-import (
-	"io"
-	"io/ioutil"
-	"net"
-	"path"
-	"sync"
-
-	gossh "golang.org/x/crypto/ssh"
-)
-
-const (
-	agentRequestType = "auth-agent-req@openssh.com"
-	agentChannelType = "auth-agent@openssh.com"
-
-	agentTempDir    = "auth-agent"
-	agentListenFile = "listener.sock"
-)
-
-// contextKeyAgentRequest is an internal context key for storing if the
-// client requested agent forwarding
-var contextKeyAgentRequest = &contextKey{"auth-agent-req"}
-
-func setAgentRequested(sess *session) {
-	sess.ctx.SetValue(contextKeyAgentRequest, true)
-}
-
-// AgentRequested returns true if the client requested agent forwarding.
-func AgentRequested(sess Session) bool {
-	return sess.Context().Value(contextKeyAgentRequest) == true
-}
-
-// NewAgentListener sets up a temporary Unix socket that can be communicated
-// to the session environment and used for forwarding connections.
-func NewAgentListener() (net.Listener, error) {
-	dir, err := ioutil.TempDir("", agentTempDir)
-	if err != nil {
-		return nil, err
-	}
-	l, err := net.Listen("unix", path.Join(dir, agentListenFile))
-	if err != nil {
-		return nil, err
-	}
-	return l, nil
-}
-
-// ForwardAgentConnections takes connections from a listener to proxy into the
-// session on the OpenSSH channel for agent connections. It blocks and services
-// connections until the listener stop accepting.
-func ForwardAgentConnections(l net.Listener, s Session) {
-	sshConn := s.Context().Value(ContextKeyConn).(gossh.Conn)
-	for {
-		conn, err := l.Accept()
-		if err != nil {
-			return
-		}
-		go func(conn net.Conn) {
-			defer conn.Close()
-			channel, reqs, err := sshConn.OpenChannel(agentChannelType, nil)
-			if err != nil {
-				return
-			}
-			defer channel.Close()
-			go gossh.DiscardRequests(reqs)
-			var wg sync.WaitGroup
-			wg.Add(2)
-			go func() {
-				io.Copy(conn, channel)
-				conn.(*net.UnixConn).CloseWrite()
-				wg.Done()
-			}()
-			go func() {
-				io.Copy(channel, conn)
-				channel.CloseWrite()
-				wg.Done()
-			}()
-			wg.Wait()
-		}(conn)
-	}
-}
--- a/vendor/github.com/gliderlabs/ssh/circle.yml
+++ b/vendor/github.com/gliderlabs/ssh/circle.yml
@@ -1,10 +0,0 @@
-version: 2.0
-jobs:
-  build:
-    docker:
-    - image: golang:1.8
-    working_directory: /go/src/github.com/gliderlabs/ssh
-    steps:
-    - checkout
-    - run: go get
-    - run: go test -v -race
--- a/vendor/github.com/gliderlabs/ssh/conn.go
+++ b/vendor/github.com/gliderlabs/ssh/conn.go
@@ -1,55 +0,0 @@
-package ssh
-
-import (
-	"context"
-	"net"
-	"time"
-)
-
-type serverConn struct {
-	net.Conn
-
-	idleTimeout   time.Duration
-	maxDeadline   time.Time
-	closeCanceler context.CancelFunc
-}
-
-func (c *serverConn) Write(p []byte) (n int, err error) {
-	c.updateDeadline()
-	n, err = c.Conn.Write(p)
-	if _, isNetErr := err.(net.Error); isNetErr && c.closeCanceler != nil {
-		c.closeCanceler()
-	}
-	return
-}
-
-func (c *serverConn) Read(b []byte) (n int, err error) {
-	c.updateDeadline()
-	n, err = c.Conn.Read(b)
-	if _, isNetErr := err.(net.Error); isNetErr && c.closeCanceler != nil {
-		c.closeCanceler()
-	}
-	return
-}
-
-func (c *serverConn) Close() (err error) {
-	err = c.Conn.Close()
-	if c.closeCanceler != nil {
-		c.closeCanceler()
-	}
-	return
-}
-
-func (c *serverConn) updateDeadline() {
-	switch {
-	case c.idleTimeout > 0:
-		idleDeadline := time.Now().Add(c.idleTimeout)
-		if idleDeadline.Unix() < c.maxDeadline.Unix() {
-			c.Conn.SetDeadline(idleDeadline)
-			return
-		}
-		fallthrough
-	default:
-		c.Conn.SetDeadline(c.maxDeadline)
-	}
-}
--- a/vendor/github.com/gliderlabs/ssh/context.go
+++ b/vendor/github.com/gliderlabs/ssh/context.go
@@ -1,148 +0,0 @@
-package ssh
-
-import (
-	"context"
-	"encoding/hex"
-	"net"
-
-	gossh "golang.org/x/crypto/ssh"
-)
-
-// contextKey is a value for use with context.WithValue. It's used as
-// a pointer so it fits in an interface{} without allocation.
-type contextKey struct {
-	name string
-}
-
-var (
-	// ContextKeyUser is a context key for use with Contexts in this package.
-	// The associated value will be of type string.
-	ContextKeyUser = &contextKey{"user"}
-
-	// ContextKeySessionID is a context key for use with Contexts in this package.
-	// The associated value will be of type string.
-	ContextKeySessionID = &contextKey{"session-id"}
-
-	// ContextKeyPermissions is a context key for use with Contexts in this package.
-	// The associated value will be of type *Permissions.
-	ContextKeyPermissions = &contextKey{"permissions"}
-
-	// ContextKeyClientVersion is a context key for use with Contexts in this package.
-	// The associated value will be of type string.
-	ContextKeyClientVersion = &contextKey{"client-version"}
-
-	// ContextKeyServerVersion is a context key for use with Contexts in this package.
-	// The associated value will be of type string.
-	ContextKeyServerVersion = &contextKey{"server-version"}
-
-	// ContextKeyLocalAddr is a context key for use with Contexts in this package.
-	// The associated value will be of type net.Addr.
-	ContextKeyLocalAddr = &contextKey{"local-addr"}
-
-	// ContextKeyRemoteAddr is a context key for use with Contexts in this package.
-	// The associated value will be of type net.Addr.
-	ContextKeyRemoteAddr = &contextKey{"remote-addr"}
-
-	// ContextKeyServer is a context key for use with Contexts in this package.
-	// The associated value will be of type *Server.
-	ContextKeyServer = &contextKey{"ssh-server"}
-
-	// ContextKeyConn is a context key for use with Contexts in this package.
-	// The associated value will be of type gossh.Conn.
-	ContextKeyConn = &contextKey{"ssh-conn"}
-
-	// ContextKeyPublicKey is a context key for use with Contexts in this package.
-	// The associated value will be of type PublicKey.
-	ContextKeyPublicKey = &contextKey{"public-key"}
-)
-
-// Context is a package specific context interface. It exposes connection
-// metadata and allows new values to be easily written to it. It's used in
-// authentication handlers and callbacks, and its underlying context.Context is
-// exposed on Session in the session Handler.
-type Context interface {
-	context.Context
-
-	// User returns the username used when establishing the SSH connection.
-	User() string
-
-	// SessionID returns the session hash.
-	SessionID() string
-
-	// ClientVersion returns the version reported by the client.
-	ClientVersion() string
-
-	// ServerVersion returns the version reported by the server.
-	ServerVersion() string
-
-	// RemoteAddr returns the remote address for this connection.
-	RemoteAddr() net.Addr
-
-	// LocalAddr returns the local address for this connection.
-	LocalAddr() net.Addr
-
-	// Permissions returns the Permissions object used for this connection.
-	Permissions() *Permissions
-
-	// SetValue allows you to easily write new values into the underlying context.
-	SetValue(key, value interface{})
-}
-
-type sshContext struct {
-	context.Context
-}
-
-func newContext(srv *Server) (*sshContext, context.CancelFunc) {
-	innerCtx, cancel := context.WithCancel(context.Background())
-	ctx := &sshContext{innerCtx}
-	ctx.SetValue(ContextKeyServer, srv)
-	perms := &Permissions{&gossh.Permissions{}}
-	ctx.SetValue(ContextKeyPermissions, perms)
-	return ctx, cancel
-}
-
-// this is separate from newContext because we will get ConnMetadata
-// at different points so it needs to be applied separately
-func (ctx *sshContext) applyConnMetadata(conn gossh.ConnMetadata) {
-	if ctx.Value(ContextKeySessionID) != nil {
-		return
-	}
-	ctx.SetValue(ContextKeySessionID, hex.EncodeToString(conn.SessionID()))
-	ctx.SetValue(ContextKeyClientVersion, string(conn.ClientVersion()))
-	ctx.SetValue(ContextKeyServerVersion, string(conn.ServerVersion()))
-	ctx.SetValue(ContextKeyUser, conn.User())
-	ctx.SetValue(ContextKeyLocalAddr, conn.LocalAddr())
-	ctx.SetValue(ContextKeyRemoteAddr, conn.RemoteAddr())
-}
-
-func (ctx *sshContext) SetValue(key, value interface{}) {
-	ctx.Context = context.WithValue(ctx.Context, key, value)
-}
-
-func (ctx *sshContext) User() string {
-	return ctx.Value(ContextKeyUser).(string)
-}
-
-func (ctx *sshContext) SessionID() string {
-	return ctx.Value(ContextKeySessionID).(string)
-}
-
-func (ctx *sshContext) ClientVersion() string {
-	return ctx.Value(ContextKeyClientVersion).(string)
-}
-
-func (ctx *sshContext) ServerVersion() string {
-	return ctx.Value(ContextKeyServerVersion).(string)
-}
-
-func (ctx *sshContext) RemoteAddr() net.Addr {
-	return ctx.Value(ContextKeyRemoteAddr).(net.Addr)
-}
-
-func (ctx *sshContext) LocalAddr() net.Addr {
-	return ctx.Value(ContextKeyLocalAddr).(net.Addr)
-}
-
-func (ctx *sshContext) Permissions() *Permissions {
-	return ctx.Value(ContextKeyPermissions).(*Permissions)
-}
--- a/vendor/github.com/gliderlabs/ssh/doc.go
+++ b/vendor/github.com/gliderlabs/ssh/doc.go
@@ -1,47 +0,0 @@
-/*
-
-Package ssh wraps the crypto/ssh package with a higher-level API for building
-SSH servers. The goal of the API was to make it as simple as using net/http, so
-the API is very similar.
-
-You should be able to build any SSH server using only this package, which wraps
-relevant types and some functions from crypto/ssh. However, you still need to
-use crypto/ssh for building SSH clients.
-
-ListenAndServe starts an SSH server with a given address, handler, and options. The
-handler is usually nil, which means to use DefaultHandler. Handle sets DefaultHandler:
-
-  ssh.Handle(func(s ssh.Session) {
-      io.WriteString(s, "Hello world\n")
-  })
-
-  log.Fatal(ssh.ListenAndServe(":2222", nil))
-
-If you don't specify a host key, it will generate one every time. This is convenient
-except you'll have to deal with clients being confused that the host key is different.
-It's a better idea to generate or point to an existing key on your system:
-
-  log.Fatal(ssh.ListenAndServe(":2222", nil, ssh.HostKeyFile("/Users/progrium/.ssh/id_rsa")))
-
-Although all options have functional option helpers, another way to control the
-server's behavior is by creating a custom Server:
-
-  s := &ssh.Server{
-      Addr:             ":2222",
-      Handler:          sessionHandler,
-      PublicKeyHandler: authHandler,
-  }
-  s.AddHostKey(hostKeySigner)
-
-  log.Fatal(s.ListenAndServe())
-
-This package automatically handles basic SSH requests like setting environment
-variables, requesting PTY, and changing window size. These requests are
-processed, responded to, and any relevant state is updated. This state is then
-exposed to you via the Session interface.
-
-The one big feature missing from the Session abstraction is signals. This was
-started, but not completed. Pull Requests welcome!
-
-*/
-package ssh
--- a/vendor/github.com/gliderlabs/ssh/options.go
+++ b/vendor/github.com/gliderlabs/ssh/options.go
@@ -1,77 +0,0 @@
-package ssh
-
-import (
-	"io/ioutil"
-
-	gossh "golang.org/x/crypto/ssh"
-)
-
-// PasswordAuth returns a functional option that sets PasswordHandler on the server.
-func PasswordAuth(fn PasswordHandler) Option {
-	return func(srv *Server) error {
-		srv.PasswordHandler = fn
-		return nil
-	}
-}
-
-// PublicKeyAuth returns a functional option that sets PublicKeyHandler on the server.
-func PublicKeyAuth(fn PublicKeyHandler) Option {
-	return func(srv *Server) error {
-		srv.PublicKeyHandler = fn
-		return nil
-	}
-}
-
-// HostKeyFile returns a functional option that adds HostSigners to the server
-// from a PEM file at filepath.
-func HostKeyFile(filepath string) Option {
-	return func(srv *Server) error {
-		pemBytes, err := ioutil.ReadFile(filepath)
-		if err != nil {
-			return err
-		}
-
-		signer, err := gossh.ParsePrivateKey(pemBytes)
-		if err != nil {
-			return err
-		}
-
-		srv.AddHostKey(signer)
-
-		return nil
-	}
-}
-
-// HostKeyPEM returns a functional option that adds HostSigners to the server
-// from a PEM file as bytes.
-func HostKeyPEM(bytes []byte) Option {
-	return func(srv *Server) error {
-		signer, err := gossh.ParsePrivateKey(bytes)
-		if err != nil {
-			return err
-		}
-
-		srv.AddHostKey(signer)
-
-		return nil
-	}
-}
-
-// NoPty returns a functional option that sets PtyCallback to return false,
-// denying PTY requests.
-func NoPty() Option {
-	return func(srv *Server) error {
-		srv.PtyCallback = func(ctx Context, pty Pty) bool {
-			return false
-		}
-		return nil
-	}
-}
-
-// WrapConn returns a functional option that sets ConnCallback on the server.
-func WrapConn(fn ConnCallback) Option {
-	return func(srv *Server) error {
-		srv.ConnCallback = fn
-		return nil
-	}
-}
--- a/vendor/github.com/gliderlabs/ssh/server.go
+++ b/vendor/github.com/gliderlabs/ssh/server.go
@@ -1,332 +0,0 @@
-package ssh
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"net"
-	"sync"
-	"time"
-
-	gossh "golang.org/x/crypto/ssh"
-)
-
-// ErrServerClosed is returned by the Server's Serve, ListenAndServe,
-// and ListenAndServeTLS methods after a call to Shutdown or Close.
-var ErrServerClosed = errors.New("ssh: Server closed")
-
-// Server defines parameters for running an SSH server. The zero value for
-// Server is a valid configuration. When both PasswordHandler and
-// PublicKeyHandler are nil, no client authentication is performed.
-type Server struct {
-	Addr        string   // TCP address to listen on, ":22" if empty
-	Handler     Handler  // handler to invoke, ssh.DefaultHandler if nil
-	HostSigners []Signer // private keys for the host key, must have at least one
-	Version     string   // server version to be sent before the initial handshake
-
-	PasswordHandler             PasswordHandler             // password authentication handler
-	PublicKeyHandler            PublicKeyHandler            // public key authentication handler
-	PtyCallback                 PtyCallback                 // callback for allowing PTY sessions, allows all if nil
-	ConnCallback                ConnCallback                // optional callback for wrapping net.Conn before handling
-	LocalPortForwardingCallback LocalPortForwardingCallback // callback for allowing local port forwarding, denies all if nil
-
-	IdleTimeout time.Duration // connection timeout when no activity, none if empty
-	MaxTimeout  time.Duration // absolute connection timeout, none if empty
-
-	channelHandlers map[string]channelHandler
-
-	mu        sync.Mutex
-	listeners map[net.Listener]struct{}
-	conns     map[*gossh.ServerConn]struct{}
-	doneChan  chan struct{}
-}
-
-// internal for now
-type channelHandler func(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx *sshContext)
-
-func (srv *Server) ensureHostSigner() error {
-	if len(srv.HostSigners) == 0 {
-		signer, err := generateSigner()
-		if err != nil {
-			return err
-		}
-		srv.HostSigners = append(srv.HostSigners, signer)
-	}
-	return nil
-}
-
-func (srv *Server) config(ctx *sshContext) *gossh.ServerConfig {
-	srv.channelHandlers = map[string]channelHandler{
-		"session":      sessionHandler,
-		"direct-tcpip": directTcpipHandler,
-	}
-	config := &gossh.ServerConfig{}
-	for _, signer := range srv.HostSigners {
-		config.AddHostKey(signer)
-	}
-	if srv.PasswordHandler == nil && srv.PublicKeyHandler == nil {
-		config.NoClientAuth = true
-	}
-	if srv.Version != "" {
-		config.ServerVersion = "SSH-2.0-" + srv.Version
-	}
-	if srv.PasswordHandler != nil {
-		config.PasswordCallback = func(conn gossh.ConnMetadata, password []byte) (*gossh.Permissions, error) {
-			ctx.applyConnMetadata(conn)
-			if ok := srv.PasswordHandler(ctx, string(password)); !ok {
-				return ctx.Permissions().Permissions, fmt.Errorf("permission denied")
-			}
-			return ctx.Permissions().Permissions, nil
-		}
-	}
-	if srv.PublicKeyHandler != nil {
-		config.PublicKeyCallback = func(conn gossh.ConnMetadata, key gossh.PublicKey) (*gossh.Permissions, error) {
-			ctx.applyConnMetadata(conn)
-			if ok := srv.PublicKeyHandler(ctx, key); !ok {
-				return ctx.Permissions().Permissions, fmt.Errorf("permission denied")
-			}
-			ctx.SetValue(ContextKeyPublicKey, key)
-			return ctx.Permissions().Permissions, nil
-		}
-	}
-	return config
-}
-
-// Handle sets the Handler for the server.
-func (srv *Server) Handle(fn Handler) {
-	srv.Handler = fn
-}
-
-// Close immediately closes all active listeners and all active
-// connections.
-//
-// Close returns any error returned from closing the Server's
-// underlying Listener(s).
-func (srv *Server) Close() error {
-	srv.mu.Lock()
-	defer srv.mu.Unlock()
-	srv.closeDoneChanLocked()
-	err := srv.closeListenersLocked()
-	for c := range srv.conns {
-		c.Close()
-		delete(srv.conns, c)
-	}
-	return err
-}
-
-// shutdownPollInterval is how often we poll for quiescence
-// during Server.Shutdown. This is lower during tests, to
-// speed up tests.
-// Ideally we could find a solution that doesn't involve polling,
-// but which also doesn't have a high runtime cost (and doesn't
-// involve any contentious mutexes), but that is left as an
-// exercise for the reader.
-var shutdownPollInterval = 500 * time.Millisecond
-
-// Shutdown gracefully shuts down the server without interrupting any
-// active connections. Shutdown works by first closing all open
-// listeners, and then waiting indefinitely for connections to close.
-// If the provided context expires before the shutdown is complete,
-// then the context's error is returned.
-func (srv *Server) Shutdown(ctx context.Context) error {
-	srv.mu.Lock()
-	lnerr := srv.closeListenersLocked()
-	srv.closeDoneChanLocked()
-	srv.mu.Unlock()
-	ticker := time.NewTicker(shutdownPollInterval)
-	defer ticker.Stop()
-	for {
-		srv.mu.Lock()
-		conns := len(srv.conns)
-		srv.mu.Unlock()
-		if conns == 0 {
-			return lnerr
-		}
-		select {
-		case <-ctx.Done():
-			return ctx.Err()
-		case <-ticker.C:
-		}
-	}
-
-}
-
-// Serve accepts incoming connections on the Listener l, creating a new
-// connection goroutine for each. The connection goroutines read requests and then
-// calls srv.Handler to handle sessions.
-//
-// Serve always returns a non-nil error.
-func (srv *Server) Serve(l net.Listener) error {
-	defer l.Close()
-	if err := srv.ensureHostSigner(); err != nil {
-		return err
-	}
-	if srv.Handler == nil {
-		srv.Handler = DefaultHandler
-	}
-	var tempDelay time.Duration
-
-	srv.trackListener(l, true)
-	defer srv.trackListener(l, false)
-	for {
-		conn, e := l.Accept()
-		if e != nil {
-			select {
-			case <-srv.getDoneChan():
-				return ErrServerClosed
-			default:
-			}
-			if ne, ok := e.(net.Error); ok && ne.Temporary() {
-				if tempDelay == 0 {
-					tempDelay = 5 * time.Millisecond
-				} else {
-					tempDelay *= 2
-				}
-				if max := 1 * time.Second; tempDelay > max {
-					tempDelay = max
-				}
-				time.Sleep(tempDelay)
-				continue
-			}
-			return e
-		}
-		go srv.handleConn(conn)
-	}
-}
-
-func (srv *Server) handleConn(newConn net.Conn) {
-	if srv.ConnCallback != nil {
-		cbConn := srv.ConnCallback(newConn)
-		if cbConn == nil {
-			newConn.Close()
-			return
-		}
-		newConn = cbConn
-	}
-	ctx, cancel := newContext(srv)
-	conn := &serverConn{
-		Conn:          newConn,
-		idleTimeout:   srv.IdleTimeout,
-		closeCanceler: cancel,
-	}
-	if srv.MaxTimeout > 0 {
-		conn.maxDeadline = time.Now().Add(srv.MaxTimeout)
-	}
-	defer conn.Close()
-	sshConn, chans, reqs, err := gossh.NewServerConn(conn, srv.config(ctx))
-	if err != nil {
-		// TODO: trigger event callback
-		return
-	}
-
-	srv.trackConn(sshConn, true)
-	defer srv.trackConn(sshConn, false)
-
-	ctx.SetValue(ContextKeyConn, sshConn)
-	ctx.applyConnMetadata(sshConn)
-	go gossh.DiscardRequests(reqs)
-	for ch := range chans {
-		handler, found := srv.channelHandlers[ch.ChannelType()]
-		if !found {
-			ch.Reject(gossh.UnknownChannelType, "unsupported channel type")
-			continue
-		}
-		go handler(srv, sshConn, ch, ctx)
-	}
-}
-
-// ListenAndServe listens on the TCP network address srv.Addr and then calls
-// Serve to handle incoming connections. If srv.Addr is blank, ":22" is used.
-// ListenAndServe always returns a non-nil error.
-func (srv *Server) ListenAndServe() error {
-	addr := srv.Addr
-	if addr == "" {
-		addr = ":22"
-	}
-	ln, err := net.Listen("tcp", addr)
-	if err != nil {
-		return err
-	}
-	return srv.Serve(ln)
-}
-
-// AddHostKey adds a private key as a host key. If an existing host key exists
-// with the same algorithm, it is overwritten. Each server config must have at
-// least one host key.
-func (srv *Server) AddHostKey(key Signer) {
-	// these are later added via AddHostKey on ServerConfig, which performs the
-	// check for one of every algorithm.
-	srv.HostSigners = append(srv.HostSigners, key)
-}
-
-// SetOption runs a functional option against the server.
-func (srv *Server) SetOption(option Option) error {
-	return option(srv)
-}
-
-func (srv *Server) getDoneChan() <-chan struct{} {
-	srv.mu.Lock()
-	defer srv.mu.Unlock()
-	return srv.getDoneChanLocked()
-}
-
-func (srv *Server) getDoneChanLocked() chan struct{} {
-	if srv.doneChan == nil {
-		srv.doneChan = make(chan struct{})
-	}
-	return srv.doneChan
-}
-
-func (srv *Server) closeDoneChanLocked() {
-	ch := srv.getDoneChanLocked()
-	select {
-	case <-ch:
-		// Already closed. Don't close again.
-	default:
-		// Safe to close here. We're the only closer, guarded
-		// by srv.mu.
-		close(ch)
-	}
-}
-
-func (srv *Server) closeListenersLocked() error {
-	var err error
-	for ln := range srv.listeners {
-		if cerr := ln.Close(); cerr != nil && err == nil {
-			err = cerr
-		}
-		delete(srv.listeners, ln)
-	}
-	return err
-}
-
-func (srv *Server) trackListener(ln net.Listener, add bool) {
-	srv.mu.Lock()
-	defer srv.mu.Unlock()
-	if srv.listeners == nil {
-		srv.listeners = make(map[net.Listener]struct{})
-	}
-	if add {
-		// If the *Server is being reused after a previous
-		// Close or Shutdown, reset its doneChan:
-		if len(srv.listeners) == 0 && len(srv.conns) == 0 {
-			srv.doneChan = nil
-		}
-		srv.listeners[ln] = struct{}{}
-	} else {
-		delete(srv.listeners, ln)
-	}
-}
-
-func (srv *Server) trackConn(c *gossh.ServerConn, add bool) {
-	srv.mu.Lock()
-	defer srv.mu.Unlock()
-	if srv.conns == nil {
-		srv.conns = make(map[*gossh.ServerConn]struct{})
-	}
-	if add {
-		srv.conns[c] = struct{}{}
-	} else {
-		delete(srv.conns, c)
-	}
-}
--- a/vendor/github.com/gliderlabs/ssh/session.go
+++ b/vendor/github.com/gliderlabs/ssh/session.go
@@ -1,301 +0,0 @@
-package ssh
-
-import (
-	"bytes"
-	"context"
-	"errors"
-	"fmt"
-	"net"
-	"sync"
-
-	"github.com/anmitsu/go-shlex"
-	gossh "golang.org/x/crypto/ssh"
-)
-
-// Session provides access to information about an SSH session and methods
-// to read and write to the SSH channel with an embedded Channel interface from
-// cypto/ssh.
-//
-// When Command() returns an empty slice, the user requested a shell. Otherwise
-// the user is performing an exec with those command arguments.
-//
-// TODO: Signals
-type Session interface {
-	gossh.Channel
-
-	// User returns the username used when establishing the SSH connection.
-	User() string
-
-	// RemoteAddr returns the net.Addr of the client side of the connection.
-	RemoteAddr() net.Addr
-
-	// LocalAddr returns the net.Addr of the server side of the connection.
-	LocalAddr() net.Addr
-
-	// Environ returns a copy of strings representing the environment set by the
-	// user for this session, in the form "key=value".
-	Environ() []string
-
-	// Exit sends an exit status and then closes the session.
-	Exit(code int) error
-
-	// Command returns a shell parsed slice of arguments that were provided by the
-	// user. Shell parsing splits the command string according to POSIX shell rules,
-	// which considers quoting not just whitespace.
-	Command() []string
-
-	// PublicKey returns the PublicKey used to authenticate. If a public key was not
-	// used it will return nil.
-	PublicKey() PublicKey
-
-	// Context returns the connection's context. The returned context is always
-	// non-nil and holds the same data as the Context passed into auth
-	// handlers and callbacks.
-	//
-	// The context is canceled when the client's connection closes or I/O
-	// operation fails.
-	Context() context.Context
-
-	// Permissions returns a copy of the Permissions object that was available for
-	// setup in the auth handlers via the Context.
-	Permissions() Permissions
-
-	// Pty returns PTY information, a channel of window size changes, and a boolean
-	// of whether or not a PTY was accepted for this session.
-	Pty() (Pty, <-chan Window, bool)
-
-	// Signals registers a channel to receive signals sent from the client. The
-	// channel must handle signal sends or it will block the SSH request loop.
-	// Registering nil will unregister the channel from signal sends. During the
-	// time no channel is registered signals are buffered up to a reasonable amount.
-	// If there are buffered signals when a channel is registered, they will be
-	// sent in order on the channel immediately after registering.
-	Signals(c chan<- Signal)
-
-	MaskedReqs() chan *gossh.Request
-}
-
-// maxSigBufSize is how many signals will be buffered
-// when there is no signal channel specified
-const maxSigBufSize = 128
-
-func sessionHandler(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx *sshContext) {
-	ch, reqs, err := newChan.Accept()
-	if err != nil {
-		// TODO: trigger event callback
-		return
-	}
-	sess := &session{
-		Channel:    ch,
-		conn:       conn,
-		handler:    srv.Handler,
-		ptyCb:      srv.PtyCallback,
-		maskedReqs: make(chan *gossh.Request, 5),
-		ctx:        ctx,
-	}
-	sess.handleRequests(reqs)
-}
-
-type session struct {
-	sync.Mutex
-	gossh.Channel
-	conn       *gossh.ServerConn
-	handler    Handler
-	handled    bool
-	exited     bool
-	pty        *Pty
-	winch      chan Window
-	env        []string
-	ptyCb      PtyCallback
-	cmd        []string
-	ctx        *sshContext
-	sigCh      chan<- Signal
-	sigBuf     []Signal
-	maskedReqs chan *gossh.Request
-}
-
-func (sess *session) Write(p []byte) (n int, err error) {
-	if sess.pty != nil {
-		m := len(p)
-		// normalize \n to \r\n when pty is accepted.
-		// this is a hardcoded shortcut since we don't support terminal modes.
-		p = bytes.Replace(p, []byte{'\n'}, []byte{'\r', '\n'}, -1)
-		p = bytes.Replace(p, []byte{'\r', '\r', '\n'}, []byte{'\r', '\n'}, -1)
-		n, err = sess.Channel.Write(p)
-		if n > m {
-			n = m
-		}
-		return
-	}
-	return sess.Channel.Write(p)
-}
-
-func (sess *session) PublicKey() PublicKey {
-	sessionkey := sess.ctx.Value(ContextKeyPublicKey)
-	if sessionkey == nil {
-		return nil
-	}
-	return sessionkey.(PublicKey)
-}
-
-func (sess *session) Permissions() Permissions {
-	// use context permissions because its properly
-	// wrapped and easier to dereference
-	perms := sess.ctx.Value(ContextKeyPermissions).(*Permissions)
-	return *perms
-}
-
-func (sess *session) Context() context.Context {
-	return sess.ctx.Context
-}
-
-func (sess *session) Exit(code int) error {
-	sess.Lock()
-	defer sess.Unlock()
-
-	if sess.exited {
-		return errors.New("Session.Exit called multiple times")
-	}
-	sess.exited = true
-
-	status := struct{ Status uint32 }{uint32(code)}
-	_, err := sess.SendRequest("exit-status", false, gossh.Marshal(&status))
-	if err != nil {
-		return err
-	}
-
-	close(sess.maskedReqs)
-
-	return sess.Close()
-}
-
-func (sess *session) User() string {
-	return sess.conn.User()
-}
-
-func (sess *session) RemoteAddr() net.Addr {
-	return sess.conn.RemoteAddr()
-}
-
-func (sess *session) LocalAddr() net.Addr {
-	return sess.conn.LocalAddr()
-}
-
-func (sess *session) Environ() []string {
-	return append([]string(nil), sess.env...)
-}
-
-func (sess *session) Command() []string {
-	return append([]string(nil), sess.cmd...)
-}
-
-func (sess *session) Pty() (Pty, <-chan Window, bool) {
-	if sess.pty != nil {
-		return *sess.pty, sess.winch, true
-	}
-	return Pty{}, sess.winch, false
-}
-
-func (sess *session) Signals(c chan<- Signal) {
-	sess.Lock()
-	defer sess.Unlock()
-	sess.sigCh = c
-	if len(sess.sigBuf) > 0 {
-		go func() {
-			for _, sig := range sess.sigBuf {
-				sess.sigCh <- sig
-			}
-		}()
-	}
-}
-
-func (sess *session) MaskedReqs() chan *gossh.Request {
-	return sess.maskedReqs
-}
-
-func (sess *session) handleRequests(reqs <-chan *gossh.Request) {
-	for req := range reqs {
-		switch req.Type {
-		case "shell", "exec":
-			if sess.handled {
-				req.Reply(false, nil)
-				continue
-			}
-			sess.handled = true
-			req.Reply(true, nil)
-
-			var payload = struct{ Value string }{}
-			gossh.Unmarshal(req.Payload, &payload)
-			sess.cmd, _ = shlex.Split(payload.Value, true)
-			go func() {
-				sess.handler(sess)
-				sess.Exit(0)
-			}()
-		case "env":
-			if sess.handled {
-				req.Reply(false, nil)
-				continue
-			}
-			var kv struct{ Key, Value string }
-			gossh.Unmarshal(req.Payload, &kv)
-			sess.env = append(sess.env, fmt.Sprintf("%s=%s", kv.Key, kv.Value))
-			req.Reply(true, nil)
-		case "signal":
-			var payload struct{ Signal string }
-			gossh.Unmarshal(req.Payload, &payload)
-			sess.Lock()
-			if sess.sigCh != nil {
-				sess.sigCh <- Signal(payload.Signal)
-			} else {
-				if len(sess.sigBuf) < maxSigBufSize {
-					sess.sigBuf = append(sess.sigBuf, Signal(payload.Signal))
-				}
-			}
-			sess.Unlock()
-		case "pty-req":
-			if sess.handled || sess.pty != nil {
-				req.Reply(false, nil)
-				continue
-			}
-			ptyReq, ok := parsePtyRequest(req.Payload)
-			if !ok {
-				req.Reply(false, nil)
-				continue
-			}
-			if sess.ptyCb != nil {
-				ok := sess.ptyCb(sess.ctx, ptyReq)
-				if !ok {
-					req.Reply(false, nil)
-					continue
-				}
-			}
-			sess.pty = &ptyReq
-			sess.winch = make(chan Window, 1)
-			sess.winch <- ptyReq.Window
-			defer func() {
-				// when reqs is closed
-				close(sess.winch)
-			}()
-			req.Reply(ok, nil)
-		case "window-change":
-			if sess.pty == nil {
-				req.Reply(false, nil)
-				continue
-			}
-			win, ok := parseWinchRequest(req.Payload)
-			if ok {
-				sess.pty.Window = win
-				sess.winch <- win
-			}
-			req.Reply(ok, nil)
-		case agentRequestType:
-			// TODO: option/callback to allow agent forwarding
-			setAgentRequested(sess)
-			req.Reply(true, nil)
-		default:
-			// TODO: debug log
-		}
-
-		sess.maskedReqs <- req
-	}
-}
--- a/vendor/github.com/gliderlabs/ssh/ssh.go
+++ b/vendor/github.com/gliderlabs/ssh/ssh.go
@@ -1,109 +0,0 @@
-package ssh
-
-import (
-	"crypto/subtle"
-	"net"
-)
-
-type Signal string
-
-// POSIX signals as listed in RFC 4254 Section 6.10.
-const (
-	SIGABRT Signal = "ABRT"
-	SIGALRM Signal = "ALRM"
-	SIGFPE  Signal = "FPE"
-	SIGHUP  Signal = "HUP"
-	SIGILL  Signal = "ILL"
-	SIGINT  Signal = "INT"
-	SIGKILL Signal = "KILL"
-	SIGPIPE Signal = "PIPE"
-	SIGQUIT Signal = "QUIT"
-	SIGSEGV Signal = "SEGV"
-	SIGTERM Signal = "TERM"
-	SIGUSR1 Signal = "USR1"
-	SIGUSR2 Signal = "USR2"
-)
-
-// DefaultHandler is the default Handler used by Serve.
-var DefaultHandler Handler
-
-// Option is a functional option handler for Server.
-type Option func(*Server) error
-
-// Handler is a callback for handling established SSH sessions.
-type Handler func(Session)
-
-// PublicKeyHandler is a callback for performing public key authentication.
-type PublicKeyHandler func(ctx Context, key PublicKey) bool
-
-// PasswordHandler is a callback for performing password authentication.
-type PasswordHandler func(ctx Context, password string) bool
-
-// PtyCallback is a hook for allowing PTY sessions.
-type PtyCallback func(ctx Context, pty Pty) bool
-
-// ConnCallback is a hook for new connections before handling.
-// It allows wrapping for timeouts and limiting by returning
-// the net.Conn that will be used as the underlying connection.
-type ConnCallback func(conn net.Conn) net.Conn
-
-// LocalPortForwardingCallback is a hook for allowing port forwarding
-type LocalPortForwardingCallback func(ctx Context, destinationHost string, destinationPort uint32) bool
-
-// Window represents the size of a PTY window.
-type Window struct {
-	Width  int
-	Height int
-}
-
-// Pty represents a PTY request and configuration.
-type Pty struct {
-	Term   string
-	Window Window
-	// HELP WANTED: terminal modes!
-}
-
-// Serve accepts incoming SSH connections on the listener l, creating a new
-// connection goroutine for each. The connection goroutines read requests and
-// then calls handler to handle sessions. Handler is typically nil, in which
-// case the DefaultHandler is used.
-func Serve(l net.Listener, handler Handler, options ...Option) error {
-	srv := &Server{Handler: handler}
-	for _, option := range options {
-		if err := srv.SetOption(option); err != nil {
-			return err
-		}
-	}
-	return srv.Serve(l)
-}
-
-// ListenAndServe listens on the TCP network address addr and then calls Serve
-// with handler to handle sessions on incoming connections. Handler is typically
-// nil, in which case the DefaultHandler is used.
-func ListenAndServe(addr string, handler Handler, options ...Option) error {
-	srv := &Server{Addr: addr, Handler: handler}
-	for _, option := range options {
-		if err := srv.SetOption(option); err != nil {
-			return err
-		}
-	}
-	return srv.ListenAndServe()
-}
-
-// Handle registers the handler as the DefaultHandler.
-func Handle(handler Handler) {
-	DefaultHandler = handler
-}
-
-// KeysEqual is constant time compare of the keys to avoid timing attacks.
-func KeysEqual(ak, bk PublicKey) bool {
-
-	//avoid panic if one of the keys is nil, return false instead
-	if ak == nil || bk == nil {
-		return false
-	}
-
-	a := ak.Marshal()
-	b := bk.Marshal()
-	return (len(a) == len(b) && subtle.ConstantTimeCompare(a, b) == 1)
-}
--- a/vendor/github.com/gliderlabs/ssh/tcpip.go
+++ b/vendor/github.com/gliderlabs/ssh/tcpip.go
@@ -1,58 +0,0 @@
-package ssh
-
-import (
-	"fmt"
-	"io"
-	"net"
-
-	gossh "golang.org/x/crypto/ssh"
-)
-
-// direct-tcpip data struct as specified in RFC4254, Section 7.2
-type forwardData struct {
-	DestinationHost string
-	DestinationPort uint32
-
-	OriginatorHost string
-	OriginatorPort uint32
-}
-
-func directTcpipHandler(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx *sshContext) {
-	d := forwardData{}
-	if err := gossh.Unmarshal(newChan.ExtraData(), &d); err != nil {
-		newChan.Reject(gossh.ConnectionFailed, "error parsing forward data: "+err.Error())
-		return
-	}
-
-	if srv.LocalPortForwardingCallback == nil || !srv.LocalPortForwardingCallback(ctx, d.DestinationHost, d.DestinationPort) {
-		newChan.Reject(gossh.Prohibited, "port forwarding is disabled")
-		return
-	}
-
-	dest := fmt.Sprintf("%s:%d", d.DestinationHost, d.DestinationPort)
-
-	var dialer net.Dialer
-	dconn, err := dialer.DialContext(ctx, "tcp", dest)
-	if err != nil {
-		newChan.Reject(gossh.ConnectionFailed, err.Error())
-		return
-	}
-
-	ch, reqs, err := newChan.Accept()
-	if err != nil {
-		dconn.Close()
-		return
-	}
-	go gossh.DiscardRequests(reqs)
-
-	go func() {
-		defer ch.Close()
-		defer dconn.Close()
-		io.Copy(ch, dconn)
-	}()
-	go func() {
-		defer ch.Close()
-		defer dconn.Close()
-		io.Copy(dconn, ch)
-	}()
-}
--- a/vendor/github.com/gliderlabs/ssh/util.go
+++ b/vendor/github.com/gliderlabs/ssh/util.go
@@ -1,89 +0,0 @@
-package ssh
-
-import (
-	"crypto/rand"
-	"crypto/rsa"
-	"encoding/binary"
-
-	"golang.org/x/crypto/ssh"
-)
-
-func generateSigner() (ssh.Signer, error) {
-	key, err := rsa.GenerateKey(rand.Reader, 768)
-	if err != nil {
-		return nil, err
-	}
-	return ssh.NewSignerFromKey(key)
-}
-
-func parsePtyRequest(s []byte) (pty Pty, ok bool) {
-	term, s, ok := parseString(s)
-	if !ok {
-		return
-	}
-	width32, s, ok := parseUint32(s)
-	if width32 < 1 {
-		ok = false
-	}
-	if !ok {
-		return
-	}
-	height32, _, ok := parseUint32(s)
-	if height32 < 1 {
-		ok = false
-	}
-	if !ok {
-		return
-	}
-	pty = Pty{
-		Term: term,
-		Window: Window{
-			Width:  int(width32),
-			Height: int(height32),
-		},
-	}
-	return
-}
-
-func parseWinchRequest(s []byte) (win Window, ok bool) {
-	width32, s, ok := parseUint32(s)
-	if width32 < 1 {
-		ok = false
-	}
-	if !ok {
-		return
-	}
-	height32, _, ok := parseUint32(s)
-	if height32 < 1 {
-		ok = false
-	}
-	if !ok {
-		return
-	}
-	win = Window{
-		Width:  int(width32),
-		Height: int(height32),
-	}
-	return
-}
-
-func parseString(in []byte) (out string, rest []byte, ok bool) {
-	if len(in) < 4 {
-		return
-	}
-	length := binary.BigEndian.Uint32(in)
-	if uint32(len(in)) < 4+length {
-		return
-	}
-	out = string(in[4 : 4+length])
-	rest = in[4+length:]
-	ok = true
-	return
-}
-
-func parseUint32(in []byte) (uint32, []byte, bool) {
-	if len(in) < 4 {
-		return 0, nil, false
-	}
-	return binary.BigEndian.Uint32(in), in[4:], true
-}
--- a/vendor/github.com/gliderlabs/ssh/wrap.go
+++ b/vendor/github.com/gliderlabs/ssh/wrap.go
@@ -1,33 +0,0 @@
-package ssh
-
-import gossh "golang.org/x/crypto/ssh"
-
-// PublicKey is an abstraction of different types of public keys.
-type PublicKey interface {
-	gossh.PublicKey
-}
-
-// The Permissions type holds fine-grained permissions that are specific to a
-// user or a specific authentication method for a user. Permissions, except for
-// "source-address", must be enforced in the server application layer, after
-// successful authentication.
-type Permissions struct {
-	*gossh.Permissions
-}
-
-// A Signer can create signatures that verify against a public key.
-type Signer interface {
-	gossh.Signer
-}
-
-// ParseAuthorizedKey parses a public key from an authorized_keys file used in
-// OpenSSH according to the sshd(8) manual page.
-func ParseAuthorizedKey(in []byte) (out PublicKey, comment string, options []string, rest []byte, err error) {
-	return gossh.ParseAuthorizedKey(in)
-}
-
-// ParsePublicKey parses an SSH public key formatted for use in
-// the SSH wire protocol according to RFC 4253, section 6.6.
-func ParsePublicKey(in []byte) (out PublicKey, err error) {
-	return gossh.ParsePublicKey(in)
-}
--- a/vendor/github.com/go-gormigrate/gormigrate/LICENSE
+++ b/vendor/github.com/go-gormigrate/gormigrate/LICENSE
@@ -1,8 +0,0 @@
-MIT License
-Copyright (c) 2016 Andrey Nering
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- a/vendor/github.com/go-gormigrate/gormigrate/README.md
+++ b/vendor/github.com/go-gormigrate/gormigrate/README.md
@@ -1,170 +0,0 @@
-[![license](https://img.shields.io/github/license/mashape/apistatus.svg?maxAge=2592000)](https://github.com/go-gormigrate/gormigrate/blob/master/LICENSE)
-[![GoDoc](https://godoc.org/gopkg.in/gormigrate.v1?status.svg)](https://godoc.org/gopkg.in/gormigrate.v1)
-[![Go Report Card](https://goreportcard.com/badge/gopkg.in/gormigrate.v1)](https://goreportcard.com/report/gopkg.in/gormigrate.v1)
-[![Build Status](https://travis-ci.org/go-gormigrate/gormigrate.svg?branch=master)](https://travis-ci.org/go-gormigrate/gormigrate)
-
-# Gormigrate
-
-[![Join the chat at https://gitter.im/go-gormigrate/gormigrate](https://badges.gitter.im/go-gormigrate/gormigrate.svg)](https://gitter.im/go-gormigrate/gormigrate?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-
-Gormigrate is a migration helper for [Gorm][gorm].
-Gorm already have useful [migrate functions][gormmigrate], just misses
-proper schema versioning and rollback cababilities.
-
-## Supported databases
-
-It supports the databases [Gorm supports][gormdatabases]:
-
- PostgreSQL
- MySQL
- SQLite
- Microsoft SQL Server
-
-## Installing
-
-```bash
-go get -u gopkg.in/gormigrate.v1
-```
-
-## Usage
-
-```go
-package main
-
-import (
-	"log"
-
-	"gopkg.in/gormigrate.v1"
-	"github.com/jinzhu/gorm"
-	_ "github.com/jinzhu/gorm/dialects/sqlite"
-)
-
-func main() {
-	db, err := gorm.Open("sqlite3", "mydb.sqlite3")
-	if err != nil {
-		log.Fatal(err)
-	}
-	if err = db.DB().Ping(); err != nil {
-		log.Fatal(err)
-	}
-
-	db.LogMode(true)
-
-	m := gormigrate.New(db, gormigrate.DefaultOptions, []*gormigrate.Migration{
-		// create persons table
-		{
-			ID: "201608301400",
-			Migrate: func(tx *gorm.DB) error {
-				// it's a good pratice to copy the struct inside the function,
-				// so side effects are prevented if the original struct changes during the time
-				type Person struct {
-					gorm.Model
-					Name string
-				}
-				return tx.AutoMigrate(&Person{}).Error
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.DropTable("people").Error
-			},
-		},
-		// add age column to persons
-		{
-			ID: "201608301415",
-			Migrate: func(tx *gorm.DB) error {
-				// when table already exists, it just adds fields as columns
-				type Person struct {
-					Age int
-				}
-				return tx.AutoMigrate(&Person{}).Error
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.Table("people").DropColumn("age").Error
-			},
-		},
-		// add pets table
-		{
-			ID: "201608301430",
-			Migrate: func(tx *gorm.DB) error {
-				type Pet struct {
-					gorm.Model
-					Name     string
-					PersonID int
-				}
-				return tx.AutoMigrate(&Pet{}).Error
-			},
-			Rollback: func(tx *gorm.DB) error {
-				return tx.DropTable("pets").Error
-			},
-		},
-	})
-
-	if err = m.Migrate(); err != nil {
-		log.Fatalf("Could not migrate: %v", err)
-	}
-	log.Printf("Migration did run successfully")
-}
-```
-
-## Having a separated function for initializing the schema
-
-If you have a lot of migrations, it can be a pain to run all them, as example,
-when you are deploying a new instance of the app, in a clean database.
-To prevent this, you can set a function that will run if no migration was run
-before (in a new clean database). Remember to create everything here, all tables,
-foreign keys and what more you need in your app.
-
-```go
-type Person struct {
-	gorm.Model
-	Name string
-	Age int
-}
-
-type Pet struct {
-	gorm.Model
-	Name     string
-	PersonID int
-}
-
-m := gormigrate.New(db, gormigrate.DefaultOptions, []*gormigrate.Migration{
-    // you migrations here
-})
-
-m.InitSchema(func(tx *gorm.DB) error {
-	err := tx.AutoMigrate(
-		&Person{},
-		&Pet{},
-		// all other tables of you app
-	)
-	if err != nil {
-		return err
-	}
-
-	if err := tx.Model(Pet{}).AddForeignKey("person_id", "people (id)", "RESTRICT", "RESTRICT").Error; err != nil {
-		return err
-	}
-	// all other foreign keys...
-	return nil
-})
-```
-
-## Options
-
-This is the options struct, in case you don't want the defaults:
-
-```go
-type Options struct {
-	// Migrations table name. Default to "migrations".
-	TableName string
-	// The of the column that stores the id of migrations. Defaults to "id".
-	IDColumnName string
-	// UseTransaction makes Gormigrate execute migrations inside a single transaction.
-	// Keep in mind that not all databases support DDL commands inside transactions.
-	// Defaults to false.
-	UseTransaction bool
-}
-```
-
-[gorm]: http://jinzhu.me/gorm/
-[gormmigrate]: http://jinzhu.me/gorm/database.html#migration
-[gormdatabases]: http://jinzhu.me/gorm/database.html#connecting-to-a-database
--- a/vendor/github.com/go-gormigrate/gormigrate/Taskfile.yml
+++ b/vendor/github.com/go-gormigrate/gormigrate/Taskfile.yml
@@ -1,16 +0,0 @@
-# https://github.com/go-task/task
-
-dl-deps:
-  desc: Downloads cli dependencies
-  cmds:
-    - go get -u github.com/golang/lint/golint
-
-lint:
-  desc: Runs golint on this project
-  cmds:
-    - golint .
-
-test:
-  desc: Runs automated tests for this project
-  cmds:
-    - go test -v .
--- a/vendor/github.com/go-gormigrate/gormigrate/doc.go
+++ b/vendor/github.com/go-gormigrate/gormigrate/doc.go
@@ -1,68 +0,0 @@
-// Package gormigrate is a migration helper for Gorm (http://jinzhu.me/gorm/).
-// Gorm already have useful migrate functions
-// (http://jinzhu.me/gorm/database.html#migration), just misses
-// proper schema versioning and rollback cababilities.
-//
-// Example:
-//
-//  package main
-//
-//  import (
-//      "log"
-//
-//      "github.com/go-gormigrate/gormigrate"
-//      "github.com/jinzhu/gorm"
-//      _ "github.com/jinzhu/gorm/dialects/sqlite"
-//  )
-//
-//  type Person struct {
-//      gorm.Model
-//      Name string
-//  }
-//
-//  type Pet struct {
-//      gorm.Model
-//      Name     string
-//      PersonID int
-//  }
-//
-//  func main() {
-//      db, err := gorm.Open("sqlite3", "mydb.sqlite3")
-//      if err != nil {
-//          log.Fatal(err)
-//      }
-//      if err = db.DB().Ping(); err != nil {
-//          log.Fatal(err)
-//      }
-//
-//      db.LogMode(true)
-//
-//      m := gormigrate.New(db, gormigrate.DefaultOptions, []*gormigrate.Migration{
-//          {
-//              ID: "201608301400",
-//              Migrate: func(tx *gorm.DB) error {
-//                  return tx.AutoMigrate(&Person{}).Error
-//              },
-//              Rollback: func(tx *gorm.DB) error {
-//                  return tx.DropTable("people").Error
-//              },
-//          },
-//          {
-//              ID: "201608301430",
-//              Migrate: func(tx *gorm.DB) error {
-//                  return tx.AutoMigrate(&Pet{}).Error
-//              },
-//              Rollback: func(tx *gorm.DB) error {
-//                  return tx.DropTable("pets").Error
-//              },
-//          },
-//      })
-//
-//      err = m.Migrate()
-//      if err == nil {
-//          log.Printf("Migration did run successfully")
-//      } else {
-//          log.Printf("Could not migrate: %v", err)
-//      }
-//  }
-package gormigrate
--- a/vendor/github.com/go-gormigrate/gormigrate/gormigrate.go
+++ b/vendor/github.com/go-gormigrate/gormigrate/gormigrate.go
@@ -1,285 +0,0 @@
-package gormigrate
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/jinzhu/gorm"
-)
-
-// MigrateFunc is the func signature for migrating.
-type MigrateFunc func(*gorm.DB) error
-
-// RollbackFunc is the func signature for rollbacking.
-type RollbackFunc func(*gorm.DB) error
-
-// InitSchemaFunc is the func signature for initializing the schema.
-type InitSchemaFunc func(*gorm.DB) error
-
-// Options define options for all migrations.
-type Options struct {
-	// TableName is the migration table.
-	TableName string
-	// IDColumnName is the name of column where the migration id will be stored.
-	IDColumnName string
-	// IDColumnSize is the length of the migration id column
-	IDColumnSize int
-	// UseTransaction makes Gormigrate execute migrations inside a single transaction.
-	// Keep in mind that not all databases support DDL commands inside transactions.
-	UseTransaction bool
-}
-
-// Migration represents a database migration (a modification to be made on the database).
-type Migration struct {
-	// ID is the migration identifier. Usually a timestamp like "201601021504".
-	ID string
-	// Migrate is a function that will br executed while running this migration.
-	Migrate MigrateFunc
-	// Rollback will be executed on rollback. Can be nil.
-	Rollback RollbackFunc
-}
-
-// Gormigrate represents a collection of all migrations of a database schema.
-type Gormigrate struct {
-	db         *gorm.DB
-	tx         *gorm.DB
-	options    *Options
-	migrations []*Migration
-	initSchema InitSchemaFunc
-}
-
-// DuplicatedIDError is returned when more than one migration have the same ID
-type DuplicatedIDError struct {
-	ID string
-}
-
-func (e *DuplicatedIDError) Error() string {
-	return fmt.Sprintf(`Duplicated migration ID: "%s"`, e.ID)
-}
-
-var (
-	// DefaultOptions can be used if you don't want to think about options.
-	DefaultOptions = &Options{
-		TableName:      "migrations",
-		IDColumnName:   "id",
-		IDColumnSize:   255,
-		UseTransaction: false,
-	}
-
-	// ErrRollbackImpossible is returned when trying to rollback a migration
-	// that has no rollback function.
-	ErrRollbackImpossible = errors.New("It's impossible to rollback this migration")
-
-	// ErrNoMigrationDefined is returned when no migration is defined.
-	ErrNoMigrationDefined = errors.New("No migration defined")
-
-	// ErrMissingID is returned when the ID od migration is equal to ""
-	ErrMissingID = errors.New("Missing ID in migration")
-
-	// ErrNoRunnedMigration is returned when any runned migration was found while
-	// running RollbackLast
-	ErrNoRunnedMigration = errors.New("Could not find last runned migration")
-)
-
-// New returns a new Gormigrate.
-func New(db *gorm.DB, options *Options, migrations []*Migration) *Gormigrate {
-	if options.TableName == "" {
-		options.TableName = DefaultOptions.TableName
-	}
-	if options.IDColumnName == "" {
-		options.IDColumnName = DefaultOptions.IDColumnName
-	}
-	if options.IDColumnSize == 0 {
-		options.IDColumnSize = DefaultOptions.IDColumnSize
-	}
-	return &Gormigrate{
-		db:         db,
-		options:    options,
-		migrations: migrations,
-	}
-}
-
-// InitSchema sets a function that is run if no migration is found.
-// The idea is preventing to run all migrations when a new clean database
-// is being migrating. In this function you should create all tables and
-// foreign key necessary to your application.
-func (g *Gormigrate) InitSchema(initSchema InitSchemaFunc) {
-	g.initSchema = initSchema
-}
-
-// Migrate executes all migrations that did not run yet.
-func (g *Gormigrate) Migrate() error {
-	if err := g.checkDuplicatedID(); err != nil {
-		return err
-	}
-
-	if err := g.createMigrationTableIfNotExists(); err != nil {
-		return err
-	}
-
-	g.begin()
-
-	if g.initSchema != nil && g.isFirstRun() {
-		if err := g.runInitSchema(); err != nil {
-			g.rollback()
-			return err
-		}
-		return g.commit()
-	}
-
-	for _, migration := range g.migrations {
-		if err := g.runMigration(migration); err != nil {
-			g.rollback()
-			return err
-		}
-	}
-
-	return g.commit()
-}
-
-func (g *Gormigrate) checkDuplicatedID() error {
-	lookup := make(map[string]struct{}, len(g.migrations))
-	for _, m := range g.migrations {
-		if _, ok := lookup[m.ID]; ok {
-			return &DuplicatedIDError{ID: m.ID}
-		}
-		lookup[m.ID] = struct{}{}
-	}
-	return nil
-}
-
-// RollbackLast undo the last migration
-func (g *Gormigrate) RollbackLast() error {
-	if len(g.migrations) == 0 {
-		return ErrNoMigrationDefined
-	}
-
-	lastRunnedMigration, err := g.getLastRunnedMigration()
-	if err != nil {
-		return err
-	}
-
-	if err := g.RollbackMigration(lastRunnedMigration); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (g *Gormigrate) getLastRunnedMigration() (*Migration, error) {
-	for i := len(g.migrations) - 1; i >= 0; i-- {
-		migration := g.migrations[i]
-		if g.migrationDidRun(migration) {
-			return migration, nil
-		}
-	}
-	return nil, ErrNoRunnedMigration
-}
-
-// RollbackMigration undo a migration.
-func (g *Gormigrate) RollbackMigration(m *Migration) error {
-	if m.Rollback == nil {
-		return ErrRollbackImpossible
-	}
-
-	g.begin()
-
-	if err := m.Rollback(g.tx); err != nil {
-		return err
-	}
-
-	sql := fmt.Sprintf("DELETE FROM %s WHERE %s = ?", g.options.TableName, g.options.IDColumnName)
-	if err := g.db.Exec(sql, m.ID).Error; err != nil {
-		g.rollback()
-		return err
-	}
-
-	return g.commit()
-}
-
-func (g *Gormigrate) runInitSchema() error {
-	if err := g.initSchema(g.tx); err != nil {
-		return err
-	}
-
-	for _, migration := range g.migrations {
-		if err := g.insertMigration(migration.ID); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (g *Gormigrate) runMigration(migration *Migration) error {
-	if len(migration.ID) == 0 {
-		return ErrMissingID
-	}
-
-	if !g.migrationDidRun(migration) {
-		if err := migration.Migrate(g.tx); err != nil {
-			return err
-		}
-
-		if err := g.insertMigration(migration.ID); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (g *Gormigrate) createMigrationTableIfNotExists() error {
-	if g.db.HasTable(g.options.TableName) {
-		return nil
-	}
-
-	sql := fmt.Sprintf("CREATE TABLE %s (%s VARCHAR(%d) PRIMARY KEY)", g.options.TableName, g.options.IDColumnName, g.options.IDColumnSize)
-	if err := g.db.Exec(sql).Error; err != nil {
-		return err
-	}
-	return nil
-}
-
-func (g *Gormigrate) migrationDidRun(m *Migration) bool {
-	var count int
-	g.db.
-		Table(g.options.TableName).
-		Where(fmt.Sprintf("%s = ?", g.options.IDColumnName), m.ID).
-		Count(&count)
-	return count > 0
-}
-
-func (g *Gormigrate) isFirstRun() bool {
-	var count int
-	g.db.
-		Table(g.options.TableName).
-		Count(&count)
-	return count == 0
-}
-
-func (g *Gormigrate) insertMigration(id string) error {
-	sql := fmt.Sprintf("INSERT INTO %s (%s) VALUES (?)", g.options.TableName, g.options.IDColumnName)
-	return g.tx.Exec(sql, id).Error
-}
-
-func (g *Gormigrate) begin() {
-	if g.options.UseTransaction {
-		g.tx = g.db.Begin()
-	} else {
-		g.tx = g.db
-	}
-}
-
-func (g *Gormigrate) commit() error {
-	if g.options.UseTransaction {
-		if err := g.tx.Commit().Error; err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (g *Gormigrate) rollback() {
-	if g.options.UseTransaction {
-		g.tx.Rollback()
-	}
-}
--- a/vendor/github.com/go-sql-driver/mysql/AUTHORS
+++ b/vendor/github.com/go-sql-driver/mysql/AUTHORS
@@ -1,75 +0,0 @@
-# This is the official list of Go-MySQL-Driver authors for copyright purposes.
-
-# If you are submitting a patch, please add your name or the name of the
-# organization which holds the copyright to this list in alphabetical order.
-
-# Names should be added to this file as
-#	Name <email address>
-# The email address is not required for organizations.
-# Please keep the list sorted.
-
-
-# Individual Persons
-
-Aaron Hopkins <go-sql-driver at die.net>
-Achille Roussel <achille.roussel at gmail.com>
-Arne Hormann <arnehormann at gmail.com>
-Asta Xie <xiemengjun at gmail.com>
-Bulat Gaifullin <gaifullinbf at gmail.com>
-Carlos Nieto <jose.carlos at menteslibres.net>
-Chris Moos <chris at tech9computers.com>
-Daniel Nichter <nil at codenode.com>
-Daniël van Eeden <git at myname.nl>
-Dave Protasowski <dprotaso at gmail.com>
-DisposaBoy <disposaboy at dby.me>
-Egor Smolyakov <egorsmkv at gmail.com>
-Evan Shaw <evan at vendhq.com>
-Frederick Mayle <frederickmayle at gmail.com>
-Gustavo Kristic <gkristic at gmail.com>
-Hanno Braun <mail at hannobraun.com>
-Henri Yandell <flamefew at gmail.com>
-Hirotaka Yamamoto <ymmt2005 at gmail.com>
-ICHINOSE Shogo <shogo82148 at gmail.com>
-INADA Naoki <songofacandy at gmail.com>
-Jacek Szwec <szwec.jacek at gmail.com>
-James Harr <james.harr at gmail.com>
-Jeff Hodges <jeff at somethingsimilar.com>
-Jeffrey Charles <jeffreycharles at gmail.com>
-Jian Zhen <zhenjl at gmail.com>
-Joshua Prunier <joshua.prunier at gmail.com>
-Julien Lefevre <julien.lefevr at gmail.com>
-Julien Schmidt <go-sql-driver at julienschmidt.com>
-Justin Nuß <nuss.justin at gmail.com>
-Kamil Dziedzic <kamil at klecza.pl>
-Kevin Malachowski <kevin at chowski.com>
-Lennart Rudolph <lrudolph at hmc.edu>
-Leonardo YongUk Kim <dalinaum at gmail.com>
-Lion Yang <lion at aosc.xyz>
-Luca Looz <luca.looz92 at gmail.com>
-Lucas Liu <extrafliu at gmail.com>
-Luke Scott <luke at webconnex.com>
-Maciej Zimnoch <maciej.zimnoch@codilime.com>
-Michael Woolnough <michael.woolnough at gmail.com>
-Nicola Peduzzi <thenikso at gmail.com>
-Olivier Mengué <dolmen at cpan.org>
-oscarzhao <oscarzhaosl at gmail.com>
-Paul Bonser <misterpib at gmail.com>
-Peter Schultz <peter.schultz at classmarkets.com>
-Rebecca Chin <rchin at pivotal.io>
-Runrioter Wung <runrioter at gmail.com>
-Shuode Li <elemount at qq.com>
-Soroush Pour <me at soroushjp.com>
-Stan Putrya <root.vagner at gmail.com>
-Stanley Gunawan <gunawan.stanley at gmail.com>
-Xiangyu Hu <xiangyu.hu at outlook.com>
-Xiaobing Jiang <s7v7nislands at gmail.com>
-Xiuming Chen <cc at cxm.cc>
-Zhenye Xie <xiezhenye at gmail.com>
-
-# Organizations
-
-Barracuda Networks, Inc.
-Google Inc.
-Keybase Inc.
-Pivotal Inc.
-Stripe Inc.
--- a/vendor/github.com/go-sql-driver/mysql/CHANGELOG.md
+++ b/vendor/github.com/go-sql-driver/mysql/CHANGELOG.md
@@ -1,119 +0,0 @@
-## Version 1.3 (2016-12-01)
-
-Changes:
-
- - Go 1.1 is no longer supported
- - Use decimals fields in MySQL to format time types (#249)
- - Buffer optimizations (#269)
- - TLS ServerName defaults to the host (#283)
- - Refactoring (#400, #410, #437)
- - Adjusted documentation for second generation CloudSQL (#485)
- - Documented DSN system var quoting rules (#502)
- - Made statement.Close() calls idempotent to avoid errors in Go 1.6+ (#512)
-
-New Features:
-
- - Enable microsecond resolution on TIME, DATETIME and TIMESTAMP (#249)
- - Support for returning table alias on Columns() (#289, #359, #382)
- - Placeholder interpolation, can be actived with the DSN parameter `interpolateParams=true` (#309, #318, #490)
- - Support for uint64 parameters with high bit set (#332, #345)
- - Cleartext authentication plugin support (#327)
- - Exported ParseDSN function and the Config struct (#403, #419, #429)
- - Read / Write timeouts (#401)
- - Support for JSON field type (#414)
- - Support for multi-statements and multi-results (#411, #431)
- - DSN parameter to set the driver-side max_allowed_packet value manually (#489)
- - Native password authentication plugin support (#494, #524)
-
-Bugfixes:
-
- - Fixed handling of queries without columns and rows (#255)
- - Fixed a panic when SetKeepAlive() failed (#298)
- - Handle ERR packets while reading rows (#321)
- - Fixed reading NULL length-encoded integers in MySQL 5.6+ (#349)
- - Fixed absolute paths support in LOAD LOCAL DATA INFILE (#356)
- - Actually zero out bytes in handshake response (#378)
- - Fixed race condition in registering LOAD DATA INFILE handler (#383)
- - Fixed tests with MySQL 5.7.9+ (#380)
- - QueryUnescape TLS config names (#397)
- - Fixed "broken pipe" error by writing to closed socket (#390)
- - Fixed LOAD LOCAL DATA INFILE buffering (#424)
- - Fixed parsing of floats into float64 when placeholders are used (#434)
- - Fixed DSN tests with Go 1.7+ (#459)
- - Handle ERR packets while waiting for EOF (#473)
- - Invalidate connection on error while discarding additional results (#513)
- - Allow terminating packets of length 0 (#516)
-
-
-## Version 1.2 (2014-06-03)
-
-Changes:
-
- - We switched back to a "rolling release". `go get` installs the current master branch again
- - Version v1 of the driver will not be maintained anymore. Go 1.0 is no longer supported by this driver
- - Exported errors to allow easy checking from application code
- - Enabled TCP Keepalives on TCP connections
- - Optimized INFILE handling (better buffer size calculation, lazy init, ...)
- - The DSN parser also checks for a missing separating slash
- - Faster binary date / datetime to string formatting
- - Also exported the MySQLWarning type
- - mysqlConn.Close returns the first error encountered instead of ignoring all errors
- - writePacket() automatically writes the packet size to the header
- - readPacket() uses an iterative approach instead of the recursive approach to merge splitted packets
-
-New Features:
-
- - `RegisterDial` allows the usage of a custom dial function to establish the network connection
- - Setting the connection collation is possible with the `collation` DSN parameter. This parameter should be preferred over the `charset` parameter
- - Logging of critical errors is configurable with `SetLogger`
- - Google CloudSQL support
-
-Bugfixes:
-
- - Allow more than 32 parameters in prepared statements
- - Various old_password fixes
- - Fixed TestConcurrent test to pass Go's race detection
- - Fixed appendLengthEncodedInteger for large numbers
- - Renamed readLengthEnodedString to readLengthEncodedString and skipLengthEnodedString to skipLengthEncodedString (fixed typo)
-
-
-## Version 1.1 (2013-11-02)
-
-Changes:
-
-  - Go-MySQL-Driver now requires Go 1.1
-  - Connections now use the collation `utf8_general_ci` by default. Adding `&charset=UTF8` to the DSN should not be necessary anymore
-  - Made closing rows and connections error tolerant. This allows for example deferring rows.Close() without checking for errors
-  - `[]byte(nil)` is now treated as a NULL value. Before, it was treated like an empty string / `[]byte("")`
-  - DSN parameter values must now be url.QueryEscape'ed. This allows text values to contain special characters, such as '&'.
-  - Use the IO buffer also for writing. This results in zero allocations (by the driver) for most queries
-  - Optimized the buffer for reading
-  - stmt.Query now caches column metadata
-  - New Logo
-  - Changed the copyright header to include all contributors
-  - Improved the LOAD INFILE documentation
-  - The driver struct is now exported to make the driver directly accessible
-  - Refactored the driver tests
-  - Added more benchmarks and moved all to a separate file
-  - Other small refactoring
-
-New Features:
-
-  - Added *old_passwords* support: Required in some cases, but must be enabled by adding `allowOldPasswords=true` to the DSN since it is insecure
-  - Added a `clientFoundRows` parameter: Return the number of matching rows instead of the number of rows changed on UPDATEs
-  - Added TLS/SSL support: Use a TLS/SSL encrypted connection to the server. Custom TLS configs can be registered and used
-
-Bugfixes:
-
-  - Fixed MySQL 4.1 support: MySQL 4.1 sends packets with lengths which differ from the specification
-  - Convert to DB timezone when inserting `time.Time`
-  - Splitted packets (more than 16MB) are now merged correctly
-  - Fixed false positive `io.EOF` errors when the data was fully read
-  - Avoid panics on reuse of closed connections
-  - Fixed empty string producing false nil values
-  - Fixed sign byte for positive TIME fields
-
-
-## Version 1.0 (2013-05-14)
-
-Initial Release
--- a/vendor/github.com/go-sql-driver/mysql/CONTRIBUTING.md
+++ b/vendor/github.com/go-sql-driver/mysql/CONTRIBUTING.md
@@ -1,23 +0,0 @@
-# Contributing Guidelines
-
-## Reporting Issues
-
-Before creating a new Issue, please check first if a similar Issue [already exists](https://github.com/go-sql-driver/mysql/issues?state=open) or was [recently closed](https://github.com/go-sql-driver/mysql/issues?direction=desc&page=1&sort=updated&state=closed).
-
-## Contributing Code
-
-By contributing to this project, you share your code under the Mozilla Public License 2, as specified in the LICENSE file.
-Don't forget to add yourself to the AUTHORS file.
-
-### Code Review
-
-Everyone is invited to review and comment on pull requests.
-If it looks fine to you, comment with "LGTM" (Looks good to me).
-
-If changes are required, notice the reviewers with "PTAL" (Please take another look) after committing the fixes.
-
-Before merging the Pull Request, at least one [team member](https://github.com/go-sql-driver?tab=members) must have commented with "LGTM".
-
-## Development Ideas
-
-If you are looking for ideas for code contributions, please check our [Development Ideas](https://github.com/go-sql-driver/mysql/wiki/Development-Ideas) Wiki page.
--- a/vendor/github.com/go-sql-driver/mysql/LICENSE
+++ b/vendor/github.com/go-sql-driver/mysql/LICENSE
@@ -1,373 +0,0 @@
-Mozilla Public License Version 2.0
-==================================
-
-1. Definitions
--------------
-
-1.1. "Contributor"
-    means each individual or legal entity that creates, contributes to
-    the creation of, or owns Covered Software.
-
-1.2. "Contributor Version"
-    means the combination of the Contributions of others (if any) used
-    by a Contributor and that particular Contributor's Contribution.
-
-1.3. "Contribution"
-    means Covered Software of a particular Contributor.
-
-1.4. "Covered Software"
-    means Source Code Form to which the initial Contributor has attached
-    the notice in Exhibit A, the Executable Form of such Source Code
-    Form, and Modifications of such Source Code Form, in each case
-    including portions thereof.
-
-1.5. "Incompatible With Secondary Licenses"
-    means
-
-    (a) that the initial Contributor has attached the notice described
-        in Exhibit B to the Covered Software; or
-
-    (b) that the Covered Software was made available under the terms of
-        version 1.1 or earlier of the License, but not also under the
-        terms of a Secondary License.
-
-1.6. "Executable Form"
-    means any form of the work other than Source Code Form.
-
-1.7. "Larger Work"
-    means a work that combines Covered Software with other material, in 
-    a separate file or files, that is not Covered Software.
-
-1.8. "License"
-    means this document.
-
-1.9. "Licensable"
-    means having the right to grant, to the maximum extent possible,
-    whether at the time of the initial grant or subsequently, any and
-    all of the rights conveyed by this License.
-
-1.10. "Modifications"
-    means any of the following:
-
-    (a) any file in Source Code Form that results from an addition to,
-        deletion from, or modification of the contents of Covered
-        Software; or
-
-    (b) any new file in Source Code Form that contains any Covered
-        Software.
-
-1.11. "Patent Claims" of a Contributor
-    means any patent claim(s), including without limitation, method,
-    process, and apparatus claims, in any patent Licensable by such
-    Contributor that would be infringed, but for the grant of the
-    License, by the making, using, selling, offering for sale, having
-    made, import, or transfer of either its Contributions or its
-    Contributor Version.
-
-1.12. "Secondary License"
-    means either the GNU General Public License, Version 2.0, the GNU
-    Lesser General Public License, Version 2.1, the GNU Affero General
-    Public License, Version 3.0, or any later versions of those
-    licenses.
-
-1.13. "Source Code Form"
-    means the form of the work preferred for making modifications.
-
-1.14. "You" (or "Your")
-    means an individual or a legal entity exercising rights under this
-    License. For legal entities, "You" includes any entity that
-    controls, is controlled by, or is under common control with You. For
-    purposes of this definition, "control" means (a) the power, direct
-    or indirect, to cause the direction or management of such entity,
-    whether by contract or otherwise, or (b) ownership of more than
-    fifty percent (50%) of the outstanding shares or beneficial
-    ownership of such entity.
-
-2. License Grants and Conditions
--------------------------------
-
-2.1. Grants
-
-Each Contributor hereby grants You a world-wide, royalty-free,
-non-exclusive license:
-
-(a) under intellectual property rights (other than patent or trademark)
-    Licensable by such Contributor to use, reproduce, make available,
-    modify, display, perform, distribute, and otherwise exploit its
-    Contributions, either on an unmodified basis, with Modifications, or
-    as part of a Larger Work; and
-
-(b) under Patent Claims of such Contributor to make, use, sell, offer
-    for sale, have made, import, and otherwise transfer either its
-    Contributions or its Contributor Version.
-
-2.2. Effective Date
-
-The licenses granted in Section 2.1 with respect to any Contribution
-become effective for each Contribution on the date the Contributor first
-distributes such Contribution.
-
-2.3. Limitations on Grant Scope
-
-The licenses granted in this Section 2 are the only rights granted under
-this License. No additional rights or licenses will be implied from the
-distribution or licensing of Covered Software under this License.
-Notwithstanding Section 2.1(b) above, no patent license is granted by a
-Contributor:
-
-(a) for any code that a Contributor has removed from Covered Software;
-    or
-
-(b) for infringements caused by: (i) Your and any other third party's
-    modifications of Covered Software, or (ii) the combination of its
-    Contributions with other software (except as part of its Contributor
-    Version); or
-
-(c) under Patent Claims infringed by Covered Software in the absence of
-    its Contributions.
-
-This License does not grant any rights in the trademarks, service marks,
-or logos of any Contributor (except as may be necessary to comply with
-the notice requirements in Section 3.4).
-
-2.4. Subsequent Licenses
-
-No Contributor makes additional grants as a result of Your choice to
-distribute the Covered Software under a subsequent version of this
-License (see Section 10.2) or under the terms of a Secondary License (if
-permitted under the terms of Section 3.3).
-
-2.5. Representation
-
-Each Contributor represents that the Contributor believes its
-Contributions are its original creation(s) or it has sufficient rights
-to grant the rights to its Contributions conveyed by this License.
-
-2.6. Fair Use
-
-This License is not intended to limit any rights You have under
-applicable copyright doctrines of fair use, fair dealing, or other
-equivalents.
-
-2.7. Conditions
-
-Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
-in Section 2.1.
-
-3. Responsibilities
-------------------
-
-3.1. Distribution of Source Form
-
-All distribution of Covered Software in Source Code Form, including any
-Modifications that You create or to which You contribute, must be under
-the terms of this License. You must inform recipients that the Source
-Code Form of the Covered Software is governed by the terms of this
-License, and how they can obtain a copy of this License. You may not
-attempt to alter or restrict the recipients' rights in the Source Code
-Form.
-
-3.2. Distribution of Executable Form
-
-If You distribute Covered Software in Executable Form then:
-
-(a) such Covered Software must also be made available in Source Code
-    Form, as described in Section 3.1, and You must inform recipients of
-    the Executable Form how they can obtain a copy of such Source Code
-    Form by reasonable means in a timely manner, at a charge no more
-    than the cost of distribution to the recipient; and
-
-(b) You may distribute such Executable Form under the terms of this
-    License, or sublicense it under different terms, provided that the
-    license for the Executable Form does not attempt to limit or alter
-    the recipients' rights in the Source Code Form under this License.
-
-3.3. Distribution of a Larger Work
-
-You may create and distribute a Larger Work under terms of Your choice,
-provided that You also comply with the requirements of this License for
-the Covered Software. If the Larger Work is a combination of Covered
-Software with a work governed by one or more Secondary Licenses, and the
-Covered Software is not Incompatible With Secondary Licenses, this
-License permits You to additionally distribute such Covered Software
-under the terms of such Secondary License(s), so that the recipient of
-the Larger Work may, at their option, further distribute the Covered
-Software under the terms of either this License or such Secondary
-License(s).
-
-3.4. Notices
-
-You may not remove or alter the substance of any license notices
-(including copyright notices, patent notices, disclaimers of warranty,
-or limitations of liability) contained within the Source Code Form of
-the Covered Software, except that You may alter any license notices to
-the extent required to remedy known factual inaccuracies.
-
-3.5. Application of Additional Terms
-
-You may choose to offer, and to charge a fee for, warranty, support,
-indemnity or liability obligations to one or more recipients of Covered
-Software. However, You may do so only on Your own behalf, and not on
-behalf of any Contributor. You must make it absolutely clear that any
-such warranty, support, indemnity, or liability obligation is offered by
-You alone, and You hereby agree to indemnify every Contributor for any
-liability incurred by such Contributor as a result of warranty, support,
-indemnity or liability terms You offer. You may include additional
-disclaimers of warranty and limitations of liability specific to any
-jurisdiction.
-
-4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
-
-If it is impossible for You to comply with any of the terms of this
-License with respect to some or all of the Covered Software due to
-statute, judicial order, or regulation then You must: (a) comply with
-the terms of this License to the maximum extent possible; and (b)
-describe the limitations and the code they affect. Such description must
-be placed in a text file included with all distributions of the Covered
-Software under this License. Except to the extent prohibited by statute
-or regulation, such description must be sufficiently detailed for a
-recipient of ordinary skill to be able to understand it.
-
-5. Termination
--------------
-
-5.1. The rights granted under this License will terminate automatically
-if You fail to comply with any of its terms. However, if You become
-compliant, then the rights granted under this License from a particular
-Contributor are reinstated (a) provisionally, unless and until such
-Contributor explicitly and finally terminates Your grants, and (b) on an
-ongoing basis, if such Contributor fails to notify You of the
-non-compliance by some reasonable means prior to 60 days after You have
-come back into compliance. Moreover, Your grants from a particular
-Contributor are reinstated on an ongoing basis if such Contributor
-notifies You of the non-compliance by some reasonable means, this is the
-first time You have received notice of non-compliance with this License
-from such Contributor, and You become compliant prior to 30 days after
-Your receipt of the notice.
-
-5.2. If You initiate litigation against any entity by asserting a patent
-infringement claim (excluding declaratory judgment actions,
-counter-claims, and cross-claims) alleging that a Contributor Version
-directly or indirectly infringes any patent, then the rights granted to
-You by any and all Contributors for the Covered Software under Section
-2.1 of this License shall terminate.
-
-5.3. In the event of termination under Sections 5.1 or 5.2 above, all
-end user license agreements (excluding distributors and resellers) which
-have been validly granted by You or Your distributors under this License
-prior to termination shall survive termination.
-
-************************************************************************
-*                                                                      *
-*  6. Disclaimer of Warranty                                           *
-*  -------------------------                                           *
-*                                                                      *
-*  Covered Software is provided under this License on an "as is"       *
-*  basis, without warranty of any kind, either expressed, implied, or  *
-*  statutory, including, without limitation, warranties that the       *
-*  Covered Software is free of defects, merchantable, fit for a        *
-*  particular purpose or non-infringing. The entire risk as to the     *
-*  quality and performance of the Covered Software is with You.        *
-*  Should any Covered Software prove defective in any respect, You     *
-*  (not any Contributor) assume the cost of any necessary servicing,   *
-*  repair, or correction. This disclaimer of warranty constitutes an   *
-*  essential part of this License. No use of any Covered Software is   *
-*  authorized under this License except under this disclaimer.         *
-*                                                                      *
-************************************************************************
-
-************************************************************************
-*                                                                      *
-*  7. Limitation of Liability                                          *
-*  --------------------------                                          *
-*                                                                      *
-*  Under no circumstances and under no legal theory, whether tort      *
-*  (including negligence), contract, or otherwise, shall any           *
-*  Contributor, or anyone who distributes Covered Software as          *
-*  permitted above, be liable to You for any direct, indirect,         *
-*  special, incidental, or consequential damages of any character      *
-*  including, without limitation, damages for lost profits, loss of    *
-*  goodwill, work stoppage, computer failure or malfunction, or any    *
-*  and all other commercial damages or losses, even if such party      *
-*  shall have been informed of the possibility of such damages. This   *
-*  limitation of liability shall not apply to liability for death or   *
-*  personal injury resulting from such party's negligence to the       *
-*  extent applicable law prohibits such limitation. Some               *
-*  jurisdictions do not allow the exclusion or limitation of           *
-*  incidental or consequential damages, so this exclusion and          *
-*  limitation may not apply to You.                                    *
-*                                                                      *
-************************************************************************
-
-8. Litigation
-------------
-
-Any litigation relating to this License may be brought only in the
-courts of a jurisdiction where the defendant maintains its principal
-place of business and such litigation shall be governed by laws of that
-jurisdiction, without reference to its conflict-of-law provisions.
-Nothing in this Section shall prevent a party's ability to bring
-cross-claims or counter-claims.
-
-9. Miscellaneous
----------------
-
-This License represents the complete agreement concerning the subject
-matter hereof. If any provision of this License is held to be
-unenforceable, such provision shall be reformed only to the extent
-necessary to make it enforceable. Any law or regulation which provides
-that the language of a contract shall be construed against the drafter
-shall not be used to construe this License against a Contributor.
-
-10. Versions of the License
---------------------------
-
-10.1. New Versions
-
-Mozilla Foundation is the license steward. Except as provided in Section
-10.3, no one other than the license steward has the right to modify or
-publish new versions of this License. Each version will be given a
-distinguishing version number.
-
-10.2. Effect of New Versions
-
-You may distribute the Covered Software under the terms of the version
-of the License under which You originally received the Covered Software,
-or under the terms of any subsequent version published by the license
-steward.
-
-10.3. Modified Versions
-
-If you create software not governed by this License, and you want to
-create a new license for such software, you may create and use a
-modified version of this License if you rename the license and remove
-any references to the name of the license steward (except to note that
-such modified license differs from this License).
-
-10.4. Distributing Source Code Form that is Incompatible With Secondary
-Licenses
-
-If You choose to distribute Source Code Form that is Incompatible With
-Secondary Licenses under the terms of this version of the License, the
-notice described in Exhibit B of this License must be attached.
-
-Exhibit A - Source Code Form License Notice
-------------------------------------------
-
-  This Source Code Form is subject to the terms of the Mozilla Public
-  License, v. 2.0. If a copy of the MPL was not distributed with this
-  file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-If it is not possible or desirable to put the notice in a particular
-file, then You may include the notice in a location (such as a LICENSE
-file in a relevant directory) where a recipient would be likely to look
-for such a notice.
-
-You may add additional accurate notices of copyright ownership.
-
-Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
-
-  This Source Code Form is "Incompatible With Secondary Licenses", as
-  defined by the Mozilla Public License, v. 2.0.
--- a/vendor/github.com/go-sql-driver/mysql/README.md
+++ b/vendor/github.com/go-sql-driver/mysql/README.md
@@ -1,476 +0,0 @@
-# Go-MySQL-Driver
-
-A MySQL-Driver for Go's [database/sql](https://golang.org/pkg/database/sql/) package
-
-![Go-MySQL-Driver logo](https://raw.github.com/wiki/go-sql-driver/mysql/gomysql_m.png "Golang Gopher holding the MySQL Dolphin")
-
---------------------------------------
-  * [Features](#features)
-  * [Requirements](#requirements)
-  * [Installation](#installation)
-  * [Usage](#usage)
-    * [DSN (Data Source Name)](#dsn-data-source-name)
-      * [Password](#password)
-      * [Protocol](#protocol)
-      * [Address](#address)
-      * [Parameters](#parameters)
-      * [Examples](#examples)
-    * [Connection pool and timeouts](#connection-pool-and-timeouts)
-    * [context.Context Support](#contextcontext-support)
-    * [ColumnType Support](#columntype-support)
-    * [LOAD DATA LOCAL INFILE support](#load-data-local-infile-support)
-    * [time.Time support](#timetime-support)
-    * [Unicode support](#unicode-support)
-  * [Testing / Development](#testing--development)
-  * [License](#license)
-
---------------------------------------
-
-## Features
-  * Lightweight and [fast](https://github.com/go-sql-driver/sql-benchmark "golang MySQL-Driver performance")
-  * Native Go implementation. No C-bindings, just pure Go
-  * Connections over TCP/IPv4, TCP/IPv6, Unix domain sockets or [custom protocols](https://godoc.org/github.com/go-sql-driver/mysql#DialFunc)
-  * Automatic handling of broken connections
-  * Automatic Connection Pooling *(by database/sql package)*
-  * Supports queries larger than 16MB
-  * Full [`sql.RawBytes`](https://golang.org/pkg/database/sql/#RawBytes) support.
-  * Intelligent `LONG DATA` handling in prepared statements
-  * Secure `LOAD DATA LOCAL INFILE` support with file Whitelisting and `io.Reader` support
-  * Optional `time.Time` parsing
-  * Optional placeholder interpolation
-
-## Requirements
-  * Go 1.5 or higher
-  * MySQL (4.1+), MariaDB, Percona Server, Google CloudSQL or Sphinx (2.2.3+)
-
---------------------------------------
-
-## Installation
-Simple install the package to your [$GOPATH](https://github.com/golang/go/wiki/GOPATH "GOPATH") with the [go tool](https://golang.org/cmd/go/ "go command") from shell:
-```bash
-$ go get -u github.com/go-sql-driver/mysql
-```
-Make sure [Git is installed](https://git-scm.com/downloads) on your machine and in your system's `PATH`.
-
-## Usage
-_Go MySQL Driver_ is an implementation of Go's `database/sql/driver` interface. You only need to import the driver and can use the full [`database/sql`](https://golang.org/pkg/database/sql/) API then.
-
-Use `mysql` as `driverName` and a valid [DSN](#dsn-data-source-name)  as `dataSourceName`:
-```go
-import "database/sql"
-import _ "github.com/go-sql-driver/mysql"
-
-db, err := sql.Open("mysql", "user:password@/dbname")
-```
-
-[Examples are available in our Wiki](https://github.com/go-sql-driver/mysql/wiki/Examples "Go-MySQL-Driver Examples").
-
-
-### DSN (Data Source Name)
-
-The Data Source Name has a common format, like e.g. [PEAR DB](http://pear.php.net/manual/en/package.database.db.intro-dsn.php) uses it, but without type-prefix (optional parts marked by squared brackets):
-```
-[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
-```
-
-A DSN in its fullest form:
-```
-username:password@protocol(address)/dbname?param=value
-```
-
-Except for the databasename, all values are optional. So the minimal DSN is:
-```
-/dbname
-```
-
-If you do not want to preselect a database, leave `dbname` empty:
-```
-/
-```
-This has the same effect as an empty DSN string:
-```
-
-```
-
-Alternatively, [Config.FormatDSN](https://godoc.org/github.com/go-sql-driver/mysql#Config.FormatDSN) can be used to create a DSN string by filling a struct.
-
-#### Password
-Passwords can consist of any character. Escaping is **not** necessary.
-
-#### Protocol
-See [net.Dial](https://golang.org/pkg/net/#Dial) for more information which networks are available.
-In general you should use an Unix domain socket if available and TCP otherwise for best performance.
-
-#### Address
-For TCP and UDP networks, addresses have the form `host[:port]`.
-If `port` is omitted, the default port will be used.
-If `host` is a literal IPv6 address, it must be enclosed in square brackets.
-The functions [net.JoinHostPort](https://golang.org/pkg/net/#JoinHostPort) and [net.SplitHostPort](https://golang.org/pkg/net/#SplitHostPort) manipulate addresses in this form.
-
-For Unix domain sockets the address is the absolute path to the MySQL-Server-socket, e.g. `/var/run/mysqld/mysqld.sock` or `/tmp/mysql.sock`.
-
-#### Parameters
-*Parameters are case-sensitive!*
-
-Notice that any of `true`, `TRUE`, `True` or `1` is accepted to stand for a true boolean value. Not surprisingly, false can be specified as any of: `false`, `FALSE`, `False` or `0`.
-
-##### `allowAllFiles`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-`allowAllFiles=true` disables the file Whitelist for `LOAD DATA LOCAL INFILE` and allows *all* files.
-[*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)
-
-##### `allowCleartextPasswords`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-`allowCleartextPasswords=true` allows using the [cleartext client side plugin](http://dev.mysql.com/doc/en/cleartext-authentication-plugin.html) if required by an account, such as one defined with the [PAM authentication plugin](http://dev.mysql.com/doc/en/pam-authentication-plugin.html). Sending passwords in clear text may be a security problem in some configurations. To avoid problems if there is any possibility that the password would be intercepted, clients should connect to MySQL Server using a method that protects the password. Possibilities include [TLS / SSL](#tls), IPsec, or a private network.
-
-##### `allowNativePasswords`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        true
-```
-`allowNativePasswords=false` disallows the usage of MySQL native password method.
-
-##### `allowOldPasswords`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-`allowOldPasswords=true` allows the usage of the insecure old password method. This should be avoided, but is necessary in some cases. See also [the old_passwords wiki page](https://github.com/go-sql-driver/mysql/wiki/old_passwords).
-
-##### `charset`
-
-```
-Type:           string
-Valid Values:   <name>
-Default:        none
-```
-
-Sets the charset used for client-server interaction (`"SET NAMES <value>"`). If multiple charsets are set (separated by a comma), the following charset is used if setting the charset failes. This enables for example support for `utf8mb4` ([introduced in MySQL 5.5.3](http://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html)) with fallback to `utf8` for older servers (`charset=utf8mb4,utf8`).
-
-Usage of the `charset` parameter is discouraged because it issues additional queries to the server.
-Unless you need the fallback behavior, please use `collation` instead.
-
-##### `collation`
-
-```
-Type:           string
-Valid Values:   <name>
-Default:        utf8_general_ci
-```
-
-Sets the collation used for client-server interaction on connection. In contrast to `charset`, `collation` does not issue additional queries. If the specified collation is unavailable on the target server, the connection will fail.
-
-A list of valid charsets for a server is retrievable with `SHOW COLLATION`.
-
-##### `clientFoundRows`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-`clientFoundRows=true` causes an UPDATE to return the number of matching rows instead of the number of rows changed.
-
-##### `columnsWithAlias`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-When `columnsWithAlias` is true, calls to `sql.Rows.Columns()` will return the table alias and the column name separated by a dot. For example:
-
-```
-SELECT u.id FROM users as u
-```
-
-will return `u.id` instead of just `id` if `columnsWithAlias=true`.
-
-##### `interpolateParams`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-If `interpolateParams` is true, placeholders (`?`) in calls to `db.Query()` and `db.Exec()` are interpolated into a single query string with given parameters. This reduces the number of roundtrips, since the driver has to prepare a statement, execute it with given parameters and close the statement again with `interpolateParams=false`.
-
-*This can not be used together with the multibyte encodings BIG5, CP932, GB2312, GBK or SJIS. These are blacklisted as they may [introduce a SQL injection vulnerability](http://stackoverflow.com/a/12118602/3430118)!*
-
-##### `loc`
-
-```
-Type:           string
-Valid Values:   <escaped name>
-Default:        UTC
-```
-
-Sets the location for time.Time values (when using `parseTime=true`). *"Local"* sets the system's location. See [time.LoadLocation](https://golang.org/pkg/time/#LoadLocation) for details.
-
-Note that this sets the location for time.Time values but does not change MySQL's [time_zone setting](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html). For that see the [time_zone system variable](#system-variables), which can also be set as a DSN parameter.
-
-Please keep in mind, that param values must be [url.QueryEscape](https://golang.org/pkg/net/url/#QueryEscape)'ed. Alternatively you can manually replace the `/` with `%2F`. For example `US/Pacific` would be `loc=US%2FPacific`.
-
-##### `maxAllowedPacket`
-```
-Type:          decimal number
-Default:       4194304
-```
-
-Max packet size allowed in bytes. The default value is 4 MiB and should be adjusted to match the server settings. `maxAllowedPacket=0` can be used to automatically fetch the `max_allowed_packet` variable from server *on every connection*.
-
-##### `multiStatements`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-Allow multiple statements in one query. While this allows batch queries, it also greatly increases the risk of SQL injections. Only the result of the first query is returned, all other results are silently discarded.
-
-When `multiStatements` is used, `?` parameters must only be used in the first statement.
-
-##### `parseTime`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-`parseTime=true` changes the output type of `DATE` and `DATETIME` values to `time.Time` instead of `[]byte` / `string`
-
-
-##### `readTimeout`
-
-```
-Type:           duration
-Default:        0
-```
-
-I/O read timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
-
-##### `rejectReadOnly`
-
-```
-Type:           bool
-Valid Values:   true, false
-Default:        false
-```
-
-
-`rejectReadOnly=true` causes the driver to reject read-only connections. This
-is for a possible race condition during an automatic failover, where the mysql
-client gets connected to a read-only replica after the failover.
-
-Note that this should be a fairly rare case, as an automatic failover normally
-happens when the primary is down, and the race condition shouldn't happen
-unless it comes back up online as soon as the failover is kicked off. On the
-other hand, when this happens, a MySQL application can get stuck on a
-read-only connection until restarted. It is however fairly easy to reproduce,
-for example, using a manual failover on AWS Aurora's MySQL-compatible cluster.
-
-If you are not relying on read-only transactions to reject writes that aren't
-supposed to happen, setting this on some MySQL providers (such as AWS Aurora)
-is safer for failovers.
-
-Note that ERROR 1290 can be returned for a `read-only` server and this option will
-cause a retry for that error. However the same error number is used for some
-other cases. You should ensure your application will never cause an ERROR 1290
-except for `read-only` mode when enabling this option.
-
-
-##### `timeout`
-
-```
-Type:           duration
-Default:        OS default
-```
-
-Timeout for establishing connections, aka dial timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
-
-
-##### `tls`
-
-```
-Type:           bool / string
-Valid Values:   true, false, skip-verify, <name>
-Default:        false
-```
-
-`tls=true` enables TLS / SSL encrypted connection to the server. Use `skip-verify` if you want to use a self-signed or invalid certificate (server side). Use a custom value registered with [`mysql.RegisterTLSConfig`](https://godoc.org/github.com/go-sql-driver/mysql#RegisterTLSConfig).
-
-
-##### `writeTimeout`
-
-```
-Type:           duration
-Default:        0
-```
-
-I/O write timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
-
-
-##### System Variables
-
-Any other parameters are interpreted as system variables:
-  * `<boolean_var>=<value>`: `SET <boolean_var>=<value>`
-  * `<enum_var>=<value>`: `SET <enum_var>=<value>`
-  * `<string_var>=%27<value>%27`: `SET <string_var>='<value>'`
-
-Rules:
-* The values for string variables must be quoted with `'`.
-* The values must also be [url.QueryEscape](http://golang.org/pkg/net/url/#QueryEscape)'ed!
- (which implies values of string variables must be wrapped with `%27`).
-
-Examples:
-  * `autocommit=1`: `SET autocommit=1`
-  * [`time_zone=%27Europe%2FParis%27`](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html): `SET time_zone='Europe/Paris'`
-  * [`tx_isolation=%27REPEATABLE-READ%27`](https://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_tx_isolation): `SET tx_isolation='REPEATABLE-READ'`
-
-
-#### Examples
-```
-user@unix(/path/to/socket)/dbname
-```
-
-```
-root:pw@unix(/tmp/mysql.sock)/myDatabase?loc=Local
-```
-
-```
-user:password@tcp(localhost:5555)/dbname?tls=skip-verify&autocommit=true
-```
-
-Treat warnings as errors by setting the system variable [`sql_mode`](https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html):
-```
-user:password@/dbname?sql_mode=TRADITIONAL
-```
-
-TCP via IPv6:
-```
-user:password@tcp([de:ad:be:ef::ca:fe]:80)/dbname?timeout=90s&collation=utf8mb4_unicode_ci
-```
-
-TCP on a remote host, e.g. Amazon RDS:
-```
-id:password@tcp(your-amazonaws-uri.com:3306)/dbname
-```
-
-Google Cloud SQL on App Engine (First Generation MySQL Server):
-```
-user@cloudsql(project-id:instance-name)/dbname
-```
-
-Google Cloud SQL on App Engine (Second Generation MySQL Server):
-```
-user@cloudsql(project-id:regionname:instance-name)/dbname
-```
-
-TCP using default port (3306) on localhost:
-```
-user:password@tcp/dbname?charset=utf8mb4,utf8&sys_var=esc%40ped
-```
-
-Use the default protocol (tcp) and host (localhost:3306):
-```
-user:password@/dbname
-```
-
-No Database preselected:
-```
-user:password@/
-```
-
-
-### Connection pool and timeouts
-The connection pool is managed by Go's database/sql package. For details on how to configure the size of the pool and how long connections stay in the pool see `*DB.SetMaxOpenConns`, `*DB.SetMaxIdleConns`, and `*DB.SetConnMaxLifetime` in the [database/sql documentation](https://golang.org/pkg/database/sql/). The read, write, and dial timeouts for each individual connection are configured with the DSN parameters [`readTimeout`](#readtimeout), [`writeTimeout`](#writetimeout), and [`timeout`](#timeout), respectively.
-
-## `ColumnType` Support
-This driver supports the [`ColumnType` interface](https://golang.org/pkg/database/sql/#ColumnType) introduced in Go 1.8, with the exception of [`ColumnType.Length()`](https://golang.org/pkg/database/sql/#ColumnType.Length), which is currently not supported.
-
-## `context.Context` Support
-Go 1.8 added `database/sql` support for `context.Context`. This driver supports query timeouts and cancellation via contexts.
-See [context support in the database/sql package](https://golang.org/doc/go1.8#database_sql) for more details.
-
-
-### `LOAD DATA LOCAL INFILE` support
-For this feature you need direct access to the package. Therefore you must change the import path (no `_`):
-```go
-import "github.com/go-sql-driver/mysql"
-```
-
-Files must be whitelisted by registering them with `mysql.RegisterLocalFile(filepath)` (recommended) or the Whitelist check must be deactivated by using the DSN parameter `allowAllFiles=true` ([*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)).
-
-To use a `io.Reader` a handler function must be registered with `mysql.RegisterReaderHandler(name, handler)` which returns a `io.Reader` or `io.ReadCloser`. The Reader is available with the filepath `Reader::<name>` then. Choose different names for different handlers and `DeregisterReaderHandler` when you don't need it anymore.
-
-See the [godoc of Go-MySQL-Driver](https://godoc.org/github.com/go-sql-driver/mysql "golang mysql driver documentation") for details.
-
-
-### `time.Time` support
-The default internal output type of MySQL `DATE` and `DATETIME` values is `[]byte` which allows you to scan the value into a `[]byte`, `string` or `sql.RawBytes` variable in your program.
-
-However, many want to scan MySQL `DATE` and `DATETIME` values into `time.Time` variables, which is the logical opposite in Go to `DATE` and `DATETIME` in MySQL. You can do that by changing the internal output type from `[]byte` to `time.Time` with the DSN parameter `parseTime=true`. You can set the default [`time.Time` location](https://golang.org/pkg/time/#Location) with the `loc` DSN parameter.
-
-**Caution:** As of Go 1.1, this makes `time.Time` the only variable type you can scan `DATE` and `DATETIME` values into. This breaks for example [`sql.RawBytes` support](https://github.com/go-sql-driver/mysql/wiki/Examples#rawbytes).
-
-Alternatively you can use the [`NullTime`](https://godoc.org/github.com/go-sql-driver/mysql#NullTime) type as the scan destination, which works with both `time.Time` and `string` / `[]byte`.
-
-
-### Unicode support
-Since version 1.1 Go-MySQL-Driver automatically uses the collation `utf8_general_ci` by default.
-
-Other collations / charsets can be set using the [`collation`](#collation) DSN parameter.
-
-Version 1.0 of the driver recommended adding `&charset=utf8` (alias for `SET NAMES utf8`) to the DSN to enable proper UTF-8 support. This is not necessary anymore. The [`collation`](#collation) parameter should be preferred to set another collation / charset than the default.
-
-See http://dev.mysql.com/doc/refman/5.7/en/charset-unicode.html for more details on MySQL's Unicode support.
-
-## Testing / Development
-To run the driver tests you may need to adjust the configuration. See the [Testing Wiki-Page](https://github.com/go-sql-driver/mysql/wiki/Testing "Testing") for details.
-
-Go-MySQL-Driver is not feature-complete yet. Your help is very appreciated.
-If you want to contribute, you can work on an [open issue](https://github.com/go-sql-driver/mysql/issues?state=open) or review a [pull request](https://github.com/go-sql-driver/mysql/pulls).
-
-See the [Contribution Guidelines](https://github.com/go-sql-driver/mysql/blob/master/CONTRIBUTING.md) for details.
-
---------------------------------------
-
-## License
-Go-MySQL-Driver is licensed under the [Mozilla Public License Version 2.0](https://raw.github.com/go-sql-driver/mysql/master/LICENSE)
-
-Mozilla summarizes the license scope as follows:
-> MPL: The copyleft applies to any files containing MPLed code.
-
-
-That means:
-  * You can **use** the **unchanged** source code both in private and commercially.
-  * When distributing, you **must publish** the source code of any **changed files** licensed under the MPL 2.0 under a) the MPL 2.0 itself or b) a compatible license (e.g. GPL 3.0 or Apache License 2.0).
-  * You **needn't publish** the source code of your library as long as the files licensed under the MPL 2.0 are **unchanged**.
-
-Please read the [MPL 2.0 FAQ](https://www.mozilla.org/en-US/MPL/2.0/FAQ/) if you have further questions regarding the license.
-
-You can read the full terms here: [LICENSE](https://raw.github.com/go-sql-driver/mysql/master/LICENSE).
-
-![Go Gopher and MySQL Dolphin](https://raw.github.com/wiki/go-sql-driver/mysql/go-mysql-driver_m.jpg "Golang Gopher transporting the MySQL Dolphin in a wheelbarrow")
-
--- a/vendor/github.com/go-sql-driver/mysql/appengine.go
+++ b/vendor/github.com/go-sql-driver/mysql/appengine.go
@@ -1,19 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-// +build appengine
-
-package mysql
-
-import (
-	"appengine/cloudsql"
-)
-
-func init() {
-	RegisterDial("cloudsql", cloudsql.Dial)
-}
--- a/vendor/github.com/go-sql-driver/mysql/buffer.go
+++ b/vendor/github.com/go-sql-driver/mysql/buffer.go
@@ -1,147 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-import (
-	"io"
-	"net"
-	"time"
-)
-
-const defaultBufSize = 4096
-
-// A buffer which is used for both reading and writing.
-// This is possible since communication on each connection is synchronous.
-// In other words, we can't write and read simultaneously on the same connection.
-// The buffer is similar to bufio.Reader / Writer but zero-copy-ish
-// Also highly optimized for this particular use case.
-type buffer struct {
-	buf     []byte
-	nc      net.Conn
-	idx     int
-	length  int
-	timeout time.Duration
-}
-
-func newBuffer(nc net.Conn) buffer {
-	var b [defaultBufSize]byte
-	return buffer{
-		buf: b[:],
-		nc:  nc,
-	}
-}
-
-// fill reads into the buffer until at least _need_ bytes are in it
-func (b *buffer) fill(need int) error {
-	n := b.length
-
-	// move existing data to the beginning
-	if n > 0 && b.idx > 0 {
-		copy(b.buf[0:n], b.buf[b.idx:])
-	}
-
-	// grow buffer if necessary
-	// TODO: let the buffer shrink again at some point
-	//       Maybe keep the org buf slice and swap back?
-	if need > len(b.buf) {
-		// Round up to the next multiple of the default size
-		newBuf := make([]byte, ((need/defaultBufSize)+1)*defaultBufSize)
-		copy(newBuf, b.buf)
-		b.buf = newBuf
-	}
-
-	b.idx = 0
-
-	for {
-		if b.timeout > 0 {
-			if err := b.nc.SetReadDeadline(time.Now().Add(b.timeout)); err != nil {
-				return err
-			}
-		}
-
-		nn, err := b.nc.Read(b.buf[n:])
-		n += nn
-
-		switch err {
-		case nil:
-			if n < need {
-				continue
-			}
-			b.length = n
-			return nil
-
-		case io.EOF:
-			if n >= need {
-				b.length = n
-				return nil
-			}
-			return io.ErrUnexpectedEOF
-
-		default:
-			return err
-		}
-	}
-}
-
-// returns next N bytes from buffer.
-// The returned slice is only guaranteed to be valid until the next read
-func (b *buffer) readNext(need int) ([]byte, error) {
-	if b.length < need {
-		// refill
-		if err := b.fill(need); err != nil {
-			return nil, err
-		}
-	}
-
-	offset := b.idx
-	b.idx += need
-	b.length -= need
-	return b.buf[offset:b.idx], nil
-}
-
-// returns a buffer with the requested size.
-// If possible, a slice from the existing buffer is returned.
-// Otherwise a bigger buffer is made.
-// Only one buffer (total) can be used at a time.
-func (b *buffer) takeBuffer(length int) []byte {
-	if b.length > 0 {
-		return nil
-	}
-
-	// test (cheap) general case first
-	if length <= defaultBufSize || length <= cap(b.buf) {
-		return b.buf[:length]
-	}
-
-	if length < maxPacketSize {
-		b.buf = make([]byte, length)
-		return b.buf
-	}
-	return make([]byte, length)
-}
-
-// shortcut which can be used if the requested buffer is guaranteed to be
-// smaller than defaultBufSize
-// Only one buffer (total) can be used at a time.
-func (b *buffer) takeSmallBuffer(length int) []byte {
-	if b.length == 0 {
-		return b.buf[:length]
-	}
-	return nil
-}
-
-// takeCompleteBuffer returns the complete existing buffer.
-// This can be used if the necessary buffer size is unknown.
-// Only one buffer (total) can be used at a time.
-func (b *buffer) takeCompleteBuffer() []byte {
-	if b.length == 0 {
-		return b.buf
-	}
-	return nil
-}
--- a/vendor/github.com/go-sql-driver/mysql/collations.go
+++ b/vendor/github.com/go-sql-driver/mysql/collations.go
@@ -1,250 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2014 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-const defaultCollation = "utf8_general_ci"
-
-// A list of available collations mapped to the internal ID.
-// To update this map use the following MySQL query:
-//     SELECT COLLATION_NAME, ID FROM information_schema.COLLATIONS
-var collations = map[string]byte{
-	"big5_chinese_ci":          1,
-	"latin2_czech_cs":          2,
-	"dec8_swedish_ci":          3,
-	"cp850_general_ci":         4,
-	"latin1_german1_ci":        5,
-	"hp8_english_ci":           6,
-	"koi8r_general_ci":         7,
-	"latin1_swedish_ci":        8,
-	"latin2_general_ci":        9,
-	"swe7_swedish_ci":          10,
-	"ascii_general_ci":         11,
-	"ujis_japanese_ci":         12,
-	"sjis_japanese_ci":         13,
-	"cp1251_bulgarian_ci":      14,
-	"latin1_danish_ci":         15,
-	"hebrew_general_ci":        16,
-	"tis620_thai_ci":           18,
-	"euckr_korean_ci":          19,
-	"latin7_estonian_cs":       20,
-	"latin2_hungarian_ci":      21,
-	"koi8u_general_ci":         22,
-	"cp1251_ukrainian_ci":      23,
-	"gb2312_chinese_ci":        24,
-	"greek_general_ci":         25,
-	"cp1250_general_ci":        26,
-	"latin2_croatian_ci":       27,
-	"gbk_chinese_ci":           28,
-	"cp1257_lithuanian_ci":     29,
-	"latin5_turkish_ci":        30,
-	"latin1_german2_ci":        31,
-	"armscii8_general_ci":      32,
-	"utf8_general_ci":          33,
-	"cp1250_czech_cs":          34,
-	"ucs2_general_ci":          35,
-	"cp866_general_ci":         36,
-	"keybcs2_general_ci":       37,
-	"macce_general_ci":         38,
-	"macroman_general_ci":      39,
-	"cp852_general_ci":         40,
-	"latin7_general_ci":        41,
-	"latin7_general_cs":        42,
-	"macce_bin":                43,
-	"cp1250_croatian_ci":       44,
-	"utf8mb4_general_ci":       45,
-	"utf8mb4_bin":              46,
-	"latin1_bin":               47,
-	"latin1_general_ci":        48,
-	"latin1_general_cs":        49,
-	"cp1251_bin":               50,
-	"cp1251_general_ci":        51,
-	"cp1251_general_cs":        52,
-	"macroman_bin":             53,
-	"utf16_general_ci":         54,
-	"utf16_bin":                55,
-	"utf16le_general_ci":       56,
-	"cp1256_general_ci":        57,
-	"cp1257_bin":               58,
-	"cp1257_general_ci":        59,
-	"utf32_general_ci":         60,
-	"utf32_bin":                61,
-	"utf16le_bin":              62,
-	"binary":                   63,
-	"armscii8_bin":             64,
-	"ascii_bin":                65,
-	"cp1250_bin":               66,
-	"cp1256_bin":               67,
-	"cp866_bin":                68,
-	"dec8_bin":                 69,
-	"greek_bin":                70,
-	"hebrew_bin":               71,
-	"hp8_bin":                  72,
-	"keybcs2_bin":              73,
-	"koi8r_bin":                74,
-	"koi8u_bin":                75,
-	"latin2_bin":               77,
-	"latin5_bin":               78,
-	"latin7_bin":               79,
-	"cp850_bin":                80,
-	"cp852_bin":                81,
-	"swe7_bin":                 82,
-	"utf8_bin":                 83,
-	"big5_bin":                 84,
-	"euckr_bin":                85,
-	"gb2312_bin":               86,
-	"gbk_bin":                  87,
-	"sjis_bin":                 88,
-	"tis620_bin":               89,
-	"ucs2_bin":                 90,
-	"ujis_bin":                 91,
-	"geostd8_general_ci":       92,
-	"geostd8_bin":              93,
-	"latin1_spanish_ci":        94,
-	"cp932_japanese_ci":        95,
-	"cp932_bin":                96,
-	"eucjpms_japanese_ci":      97,
-	"eucjpms_bin":              98,
-	"cp1250_polish_ci":         99,
-	"utf16_unicode_ci":         101,
-	"utf16_icelandic_ci":       102,
-	"utf16_latvian_ci":         103,
-	"utf16_romanian_ci":        104,
-	"utf16_slovenian_ci":       105,
-	"utf16_polish_ci":          106,
-	"utf16_estonian_ci":        107,
-	"utf16_spanish_ci":         108,
-	"utf16_swedish_ci":         109,
-	"utf16_turkish_ci":         110,
-	"utf16_czech_ci":           111,
-	"utf16_danish_ci":          112,
-	"utf16_lithuanian_ci":      113,
-	"utf16_slovak_ci":          114,
-	"utf16_spanish2_ci":        115,
-	"utf16_roman_ci":           116,
-	"utf16_persian_ci":         117,
-	"utf16_esperanto_ci":       118,
-	"utf16_hungarian_ci":       119,
-	"utf16_sinhala_ci":         120,
-	"utf16_german2_ci":         121,
-	"utf16_croatian_ci":        122,
-	"utf16_unicode_520_ci":     123,
-	"utf16_vietnamese_ci":      124,
-	"ucs2_unicode_ci":          128,
-	"ucs2_icelandic_ci":        129,
-	"ucs2_latvian_ci":          130,
-	"ucs2_romanian_ci":         131,
-	"ucs2_slovenian_ci":        132,
-	"ucs2_polish_ci":           133,
-	"ucs2_estonian_ci":         134,
-	"ucs2_spanish_ci":          135,
-	"ucs2_swedish_ci":          136,
-	"ucs2_turkish_ci":          137,
-	"ucs2_czech_ci":            138,
-	"ucs2_danish_ci":           139,
-	"ucs2_lithuanian_ci":       140,
-	"ucs2_slovak_ci":           141,
-	"ucs2_spanish2_ci":         142,
-	"ucs2_roman_ci":            143,
-	"ucs2_persian_ci":          144,
-	"ucs2_esperanto_ci":        145,
-	"ucs2_hungarian_ci":        146,
-	"ucs2_sinhala_ci":          147,
-	"ucs2_german2_ci":          148,
-	"ucs2_croatian_ci":         149,
-	"ucs2_unicode_520_ci":      150,
-	"ucs2_vietnamese_ci":       151,
-	"ucs2_general_mysql500_ci": 159,
-	"utf32_unicode_ci":         160,
-	"utf32_icelandic_ci":       161,
-	"utf32_latvian_ci":         162,
-	"utf32_romanian_ci":        163,
-	"utf32_slovenian_ci":       164,
-	"utf32_polish_ci":          165,
-	"utf32_estonian_ci":        166,
-	"utf32_spanish_ci":         167,
-	"utf32_swedish_ci":         168,
-	"utf32_turkish_ci":         169,
-	"utf32_czech_ci":           170,
-	"utf32_danish_ci":          171,
-	"utf32_lithuanian_ci":      172,
-	"utf32_slovak_ci":          173,
-	"utf32_spanish2_ci":        174,
-	"utf32_roman_ci":           175,
-	"utf32_persian_ci":         176,
-	"utf32_esperanto_ci":       177,
-	"utf32_hungarian_ci":       178,
-	"utf32_sinhala_ci":         179,
-	"utf32_german2_ci":         180,
-	"utf32_croatian_ci":        181,
-	"utf32_unicode_520_ci":     182,
-	"utf32_vietnamese_ci":      183,
-	"utf8_unicode_ci":          192,
-	"utf8_icelandic_ci":        193,
-	"utf8_latvian_ci":          194,
-	"utf8_romanian_ci":         195,
-	"utf8_slovenian_ci":        196,
-	"utf8_polish_ci":           197,
-	"utf8_estonian_ci":         198,
-	"utf8_spanish_ci":          199,
-	"utf8_swedish_ci":          200,
-	"utf8_turkish_ci":          201,
-	"utf8_czech_ci":            202,
-	"utf8_danish_ci":           203,
-	"utf8_lithuanian_ci":       204,
-	"utf8_slovak_ci":           205,
-	"utf8_spanish2_ci":         206,
-	"utf8_roman_ci":            207,
-	"utf8_persian_ci":          208,
-	"utf8_esperanto_ci":        209,
-	"utf8_hungarian_ci":        210,
-	"utf8_sinhala_ci":          211,
-	"utf8_german2_ci":          212,
-	"utf8_croatian_ci":         213,
-	"utf8_unicode_520_ci":      214,
-	"utf8_vietnamese_ci":       215,
-	"utf8_general_mysql500_ci": 223,
-	"utf8mb4_unicode_ci":       224,
-	"utf8mb4_icelandic_ci":     225,
-	"utf8mb4_latvian_ci":       226,
-	"utf8mb4_romanian_ci":      227,
-	"utf8mb4_slovenian_ci":     228,
-	"utf8mb4_polish_ci":        229,
-	"utf8mb4_estonian_ci":      230,
-	"utf8mb4_spanish_ci":       231,
-	"utf8mb4_swedish_ci":       232,
-	"utf8mb4_turkish_ci":       233,
-	"utf8mb4_czech_ci":         234,
-	"utf8mb4_danish_ci":        235,
-	"utf8mb4_lithuanian_ci":    236,
-	"utf8mb4_slovak_ci":        237,
-	"utf8mb4_spanish2_ci":      238,
-	"utf8mb4_roman_ci":         239,
-	"utf8mb4_persian_ci":       240,
-	"utf8mb4_esperanto_ci":     241,
-	"utf8mb4_hungarian_ci":     242,
-	"utf8mb4_sinhala_ci":       243,
-	"utf8mb4_german2_ci":       244,
-	"utf8mb4_croatian_ci":      245,
-	"utf8mb4_unicode_520_ci":   246,
-	"utf8mb4_vietnamese_ci":    247,
-}
-
-// A blacklist of collations which is unsafe to interpolate parameters.
-// These multibyte encodings may contains 0x5c (`\`) in their trailing bytes.
-var unsafeCollations = map[string]bool{
-	"big5_chinese_ci":   true,
-	"sjis_japanese_ci":  true,
-	"gbk_chinese_ci":    true,
-	"big5_bin":          true,
-	"gb2312_bin":        true,
-	"gbk_bin":           true,
-	"sjis_bin":          true,
-	"cp932_japanese_ci": true,
-	"cp932_bin":         true,
-}
--- a/vendor/github.com/go-sql-driver/mysql/connection.go
+++ b/vendor/github.com/go-sql-driver/mysql/connection.go
@@ -1,461 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-import (
-	"database/sql/driver"
-	"io"
-	"net"
-	"strconv"
-	"strings"
-	"time"
-)
-
-// a copy of context.Context for Go 1.7 and earlier
-type mysqlContext interface {
-	Done() <-chan struct{}
-	Err() error
-
-	// defined in context.Context, but not used in this driver:
-	// Deadline() (deadline time.Time, ok bool)
-	// Value(key interface{}) interface{}
-}
-
-type mysqlConn struct {
-	buf              buffer
-	netConn          net.Conn
-	affectedRows     uint64
-	insertId         uint64
-	cfg              *Config
-	maxAllowedPacket int
-	maxWriteSize     int
-	writeTimeout     time.Duration
-	flags            clientFlag
-	status           statusFlag
-	sequence         uint8
-	parseTime        bool
-
-	// for context support (Go 1.8+)
-	watching bool
-	watcher  chan<- mysqlContext
-	closech  chan struct{}
-	finished chan<- struct{}
-	canceled atomicError // set non-nil if conn is canceled
-	closed   atomicBool  // set when conn is closed, before closech is closed
-}
-
-// Handles parameters set in DSN after the connection is established
-func (mc *mysqlConn) handleParams() (err error) {
-	for param, val := range mc.cfg.Params {
-		switch param {
-		// Charset
-		case "charset":
-			charsets := strings.Split(val, ",")
-			for i := range charsets {
-				// ignore errors here - a charset may not exist
-				err = mc.exec("SET NAMES " + charsets[i])
-				if err == nil {
-					break
-				}
-			}
-			if err != nil {
-				return
-			}
-
-		// System Vars
-		default:
-			err = mc.exec("SET " + param + "=" + val + "")
-			if err != nil {
-				return
-			}
-		}
-	}
-
-	return
-}
-
-func (mc *mysqlConn) markBadConn(err error) error {
-	if mc == nil {
-		return err
-	}
-	if err != errBadConnNoWrite {
-		return err
-	}
-	return driver.ErrBadConn
-}
-
-func (mc *mysqlConn) Begin() (driver.Tx, error) {
-	return mc.begin(false)
-}
-
-func (mc *mysqlConn) begin(readOnly bool) (driver.Tx, error) {
-	if mc.closed.IsSet() {
-		errLog.Print(ErrInvalidConn)
-		return nil, driver.ErrBadConn
-	}
-	var q string
-	if readOnly {
-		q = "START TRANSACTION READ ONLY"
-	} else {
-		q = "START TRANSACTION"
-	}
-	err := mc.exec(q)
-	if err == nil {
-		return &mysqlTx{mc}, err
-	}
-	return nil, mc.markBadConn(err)
-}
-
-func (mc *mysqlConn) Close() (err error) {
-	// Makes Close idempotent
-	if !mc.closed.IsSet() {
-		err = mc.writeCommandPacket(comQuit)
-	}
-
-	mc.cleanup()
-
-	return
-}
-
-// Closes the network connection and unsets internal variables. Do not call this
-// function after successfully authentication, call Close instead. This function
-// is called before auth or on auth failure because MySQL will have already
-// closed the network connection.
-func (mc *mysqlConn) cleanup() {
-	if !mc.closed.TrySet(true) {
-		return
-	}
-
-	// Makes cleanup idempotent
-	close(mc.closech)
-	if mc.netConn == nil {
-		return
-	}
-	if err := mc.netConn.Close(); err != nil {
-		errLog.Print(err)
-	}
-}
-
-func (mc *mysqlConn) error() error {
-	if mc.closed.IsSet() {
-		if err := mc.canceled.Value(); err != nil {
-			return err
-		}
-		return ErrInvalidConn
-	}
-	return nil
-}
-
-func (mc *mysqlConn) Prepare(query string) (driver.Stmt, error) {
-	if mc.closed.IsSet() {
-		errLog.Print(ErrInvalidConn)
-		return nil, driver.ErrBadConn
-	}
-	// Send command
-	err := mc.writeCommandPacketStr(comStmtPrepare, query)
-	if err != nil {
-		return nil, mc.markBadConn(err)
-	}
-
-	stmt := &mysqlStmt{
-		mc: mc,
-	}
-
-	// Read Result
-	columnCount, err := stmt.readPrepareResultPacket()
-	if err == nil {
-		if stmt.paramCount > 0 {
-			if err = mc.readUntilEOF(); err != nil {
-				return nil, err
-			}
-		}
-
-		if columnCount > 0 {
-			err = mc.readUntilEOF()
-		}
-	}
-
-	return stmt, err
-}
-
-func (mc *mysqlConn) interpolateParams(query string, args []driver.Value) (string, error) {
-	// Number of ? should be same to len(args)
-	if strings.Count(query, "?") != len(args) {
-		return "", driver.ErrSkip
-	}
-
-	buf := mc.buf.takeCompleteBuffer()
-	if buf == nil {
-		// can not take the buffer. Something must be wrong with the connection
-		errLog.Print(ErrBusyBuffer)
-		return "", ErrInvalidConn
-	}
-	buf = buf[:0]
-	argPos := 0
-
-	for i := 0; i < len(query); i++ {
-		q := strings.IndexByte(query[i:], '?')
-		if q == -1 {
-			buf = append(buf, query[i:]...)
-			break
-		}
-		buf = append(buf, query[i:i+q]...)
-		i += q
-
-		arg := args[argPos]
-		argPos++
-
-		if arg == nil {
-			buf = append(buf, "NULL"...)
-			continue
-		}
-
-		switch v := arg.(type) {
-		case int64:
-			buf = strconv.AppendInt(buf, v, 10)
-		case float64:
-			buf = strconv.AppendFloat(buf, v, 'g', -1, 64)
-		case bool:
-			if v {
-				buf = append(buf, '1')
-			} else {
-				buf = append(buf, '0')
-			}
-		case time.Time:
-			if v.IsZero() {
-				buf = append(buf, "'0000-00-00'"...)
-			} else {
-				v := v.In(mc.cfg.Loc)
-				v = v.Add(time.Nanosecond * 500) // To round under microsecond
-				year := v.Year()
-				year100 := year / 100
-				year1 := year % 100
-				month := v.Month()
-				day := v.Day()
-				hour := v.Hour()
-				minute := v.Minute()
-				second := v.Second()
-				micro := v.Nanosecond() / 1000
-
-				buf = append(buf, []byte{
-					'\'',
-					digits10[year100], digits01[year100],
-					digits10[year1], digits01[year1],
-					'-',
-					digits10[month], digits01[month],
-					'-',
-					digits10[day], digits01[day],
-					' ',
-					digits10[hour], digits01[hour],
-					':',
-					digits10[minute], digits01[minute],
-					':',
-					digits10[second], digits01[second],
-				}...)
-
-				if micro != 0 {
-					micro10000 := micro / 10000
-					micro100 := micro / 100 % 100
-					micro1 := micro % 100
-					buf = append(buf, []byte{
-						'.',
-						digits10[micro10000], digits01[micro10000],
-						digits10[micro100], digits01[micro100],
-						digits10[micro1], digits01[micro1],
-					}...)
-				}
-				buf = append(buf, '\'')
-			}
-		case []byte:
-			if v == nil {
-				buf = append(buf, "NULL"...)
-			} else {
-				buf = append(buf, "_binary'"...)
-				if mc.status&statusNoBackslashEscapes == 0 {
-					buf = escapeBytesBackslash(buf, v)
-				} else {
-					buf = escapeBytesQuotes(buf, v)
-				}
-				buf = append(buf, '\'')
-			}
-		case string:
-			buf = append(buf, '\'')
-			if mc.status&statusNoBackslashEscapes == 0 {
-				buf = escapeStringBackslash(buf, v)
-			} else {
-				buf = escapeStringQuotes(buf, v)
-			}
-			buf = append(buf, '\'')
-		default:
-			return "", driver.ErrSkip
-		}
-
-		if len(buf)+4 > mc.maxAllowedPacket {
-			return "", driver.ErrSkip
-		}
-	}
-	if argPos != len(args) {
-		return "", driver.ErrSkip
-	}
-	return string(buf), nil
-}
-
-func (mc *mysqlConn) Exec(query string, args []driver.Value) (driver.Result, error) {
-	if mc.closed.IsSet() {
-		errLog.Print(ErrInvalidConn)
-		return nil, driver.ErrBadConn
-	}
-	if len(args) != 0 {
-		if !mc.cfg.InterpolateParams {
-			return nil, driver.ErrSkip
-		}
-		// try to interpolate the parameters to save extra roundtrips for preparing and closing a statement
-		prepared, err := mc.interpolateParams(query, args)
-		if err != nil {
-			return nil, err
-		}
-		query = prepared
-	}
-	mc.affectedRows = 0
-	mc.insertId = 0
-
-	err := mc.exec(query)
-	if err == nil {
-		return &mysqlResult{
-			affectedRows: int64(mc.affectedRows),
-			insertId:     int64(mc.insertId),
-		}, err
-	}
-	return nil, mc.markBadConn(err)
-}
-
-// Internal function to execute commands
-func (mc *mysqlConn) exec(query string) error {
-	// Send command
-	if err := mc.writeCommandPacketStr(comQuery, query); err != nil {
-		return mc.markBadConn(err)
-	}
-
-	// Read Result
-	resLen, err := mc.readResultSetHeaderPacket()
-	if err != nil {
-		return err
-	}
-
-	if resLen > 0 {
-		// columns
-		if err := mc.readUntilEOF(); err != nil {
-			return err
-		}
-
-		// rows
-		if err := mc.readUntilEOF(); err != nil {
-			return err
-		}
-	}
-
-	return mc.discardResults()
-}
-
-func (mc *mysqlConn) Query(query string, args []driver.Value) (driver.Rows, error) {
-	return mc.query(query, args)
-}
-
-func (mc *mysqlConn) query(query string, args []driver.Value) (*textRows, error) {
-	if mc.closed.IsSet() {
-		errLog.Print(ErrInvalidConn)
-		return nil, driver.ErrBadConn
-	}
-	if len(args) != 0 {
-		if !mc.cfg.InterpolateParams {
-			return nil, driver.ErrSkip
-		}
-		// try client-side prepare to reduce roundtrip
-		prepared, err := mc.interpolateParams(query, args)
-		if err != nil {
-			return nil, err
-		}
-		query = prepared
-	}
-	// Send command
-	err := mc.writeCommandPacketStr(comQuery, query)
-	if err == nil {
-		// Read Result
-		var resLen int
-		resLen, err = mc.readResultSetHeaderPacket()
-		if err == nil {
-			rows := new(textRows)
-			rows.mc = mc
-
-			if resLen == 0 {
-				rows.rs.done = true
-
-				switch err := rows.NextResultSet(); err {
-				case nil, io.EOF:
-					return rows, nil
-				default:
-					return nil, err
-				}
-			}
-
-			// Columns
-			rows.rs.columns, err = mc.readColumns(resLen)
-			return rows, err
-		}
-	}
-	return nil, mc.markBadConn(err)
-}
-
-// Gets the value of the given MySQL System Variable
-// The returned byte slice is only valid until the next read
-func (mc *mysqlConn) getSystemVar(name string) ([]byte, error) {
-	// Send command
-	if err := mc.writeCommandPacketStr(comQuery, "SELECT @@"+name); err != nil {
-		return nil, err
-	}
-
-	// Read Result
-	resLen, err := mc.readResultSetHeaderPacket()
-	if err == nil {
-		rows := new(textRows)
-		rows.mc = mc
-		rows.rs.columns = []mysqlField{{fieldType: fieldTypeVarChar}}
-
-		if resLen > 0 {
-			// Columns
-			if err := mc.readUntilEOF(); err != nil {
-				return nil, err
-			}
-		}
-
-		dest := make([]driver.Value, resLen)
-		if err = rows.readRow(dest); err == nil {
-			return dest[0].([]byte), mc.readUntilEOF()
-		}
-	}
-	return nil, err
-}
-
-// finish is called when the query has canceled.
-func (mc *mysqlConn) cancel(err error) {
-	mc.canceled.Set(err)
-	mc.cleanup()
-}
-
-// finish is called when the query has succeeded.
-func (mc *mysqlConn) finish() {
-	if !mc.watching || mc.finished == nil {
-		return
-	}
-	select {
-	case mc.finished <- struct{}{}:
-		mc.watching = false
-	case <-mc.closech:
-	}
-}
--- a/vendor/github.com/go-sql-driver/mysql/connection_go18.go
+++ b/vendor/github.com/go-sql-driver/mysql/connection_go18.go
@@ -1,197 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-// +build go1.8
-
-package mysql
-
-import (
-	"context"
-	"database/sql"
-	"database/sql/driver"
-)
-
-// Ping implements driver.Pinger interface
-func (mc *mysqlConn) Ping(ctx context.Context) error {
-	if mc.closed.IsSet() {
-		errLog.Print(ErrInvalidConn)
-		return driver.ErrBadConn
-	}
-
-	if err := mc.watchCancel(ctx); err != nil {
-		return err
-	}
-	defer mc.finish()
-
-	if err := mc.writeCommandPacket(comPing); err != nil {
-		return err
-	}
-	if _, err := mc.readResultOK(); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// BeginTx implements driver.ConnBeginTx interface
-func (mc *mysqlConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
-	if err := mc.watchCancel(ctx); err != nil {
-		return nil, err
-	}
-	defer mc.finish()
-
-	if sql.IsolationLevel(opts.Isolation) != sql.LevelDefault {
-		level, err := mapIsolationLevel(opts.Isolation)
-		if err != nil {
-			return nil, err
-		}
-		err = mc.exec("SET TRANSACTION ISOLATION LEVEL " + level)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return mc.begin(opts.ReadOnly)
-}
-
-func (mc *mysqlConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
-	dargs, err := namedValueToValue(args)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := mc.watchCancel(ctx); err != nil {
-		return nil, err
-	}
-
-	rows, err := mc.query(query, dargs)
-	if err != nil {
-		mc.finish()
-		return nil, err
-	}
-	rows.finish = mc.finish
-	return rows, err
-}
-
-func (mc *mysqlConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
-	dargs, err := namedValueToValue(args)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := mc.watchCancel(ctx); err != nil {
-		return nil, err
-	}
-	defer mc.finish()
-
-	return mc.Exec(query, dargs)
-}
-
-func (mc *mysqlConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
-	if err := mc.watchCancel(ctx); err != nil {
-		return nil, err
-	}
-
-	stmt, err := mc.Prepare(query)
-	mc.finish()
-	if err != nil {
-		return nil, err
-	}
-
-	select {
-	default:
-	case <-ctx.Done():
-		stmt.Close()
-		return nil, ctx.Err()
-	}
-	return stmt, nil
-}
-
-func (stmt *mysqlStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
-	dargs, err := namedValueToValue(args)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := stmt.mc.watchCancel(ctx); err != nil {
-		return nil, err
-	}
-
-	rows, err := stmt.query(dargs)
-	if err != nil {
-		stmt.mc.finish()
-		return nil, err
-	}
-	rows.finish = stmt.mc.finish
-	return rows, err
-}
-
-func (stmt *mysqlStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
-	dargs, err := namedValueToValue(args)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := stmt.mc.watchCancel(ctx); err != nil {
-		return nil, err
-	}
-	defer stmt.mc.finish()
-
-	return stmt.Exec(dargs)
-}
-
-func (mc *mysqlConn) watchCancel(ctx context.Context) error {
-	if mc.watching {
-		// Reach here if canceled,
-		// so the connection is already invalid
-		mc.cleanup()
-		return nil
-	}
-	if ctx.Done() == nil {
-		return nil
-	}
-
-	mc.watching = true
-	select {
-	default:
-	case <-ctx.Done():
-		return ctx.Err()
-	}
-	if mc.watcher == nil {
-		return nil
-	}
-
-	mc.watcher <- ctx
-
-	return nil
-}
-
-func (mc *mysqlConn) startWatcher() {
-	watcher := make(chan mysqlContext, 1)
-	mc.watcher = watcher
-	finished := make(chan struct{})
-	mc.finished = finished
-	go func() {
-		for {
-			var ctx mysqlContext
-			select {
-			case ctx = <-watcher:
-			case <-mc.closech:
-				return
-			}
-
-			select {
-			case <-ctx.Done():
-				mc.cancel(ctx.Err())
-			case <-finished:
-			case <-mc.closech:
-				return
-			}
-		}
-	}()
-}
--- a/vendor/github.com/go-sql-driver/mysql/const.go
+++ b/vendor/github.com/go-sql-driver/mysql/const.go
@@ -1,166 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-const (
-	defaultMaxAllowedPacket = 4 << 20 // 4 MiB
-	minProtocolVersion      = 10
-	maxPacketSize           = 1<<24 - 1
-	timeFormat              = "2006-01-02 15:04:05.999999"
-)
-
-// MySQL constants documentation:
-// http://dev.mysql.com/doc/internals/en/client-server-protocol.html
-
-const (
-	iOK          byte = 0x00
-	iLocalInFile byte = 0xfb
-	iEOF         byte = 0xfe
-	iERR         byte = 0xff
-)
-
-// https://dev.mysql.com/doc/internals/en/capability-flags.html#packet-Protocol::CapabilityFlags
-type clientFlag uint32
-
-const (
-	clientLongPassword clientFlag = 1 << iota
-	clientFoundRows
-	clientLongFlag
-	clientConnectWithDB
-	clientNoSchema
-	clientCompress
-	clientODBC
-	clientLocalFiles
-	clientIgnoreSpace
-	clientProtocol41
-	clientInteractive
-	clientSSL
-	clientIgnoreSIGPIPE
-	clientTransactions
-	clientReserved
-	clientSecureConn
-	clientMultiStatements
-	clientMultiResults
-	clientPSMultiResults
-	clientPluginAuth
-	clientConnectAttrs
-	clientPluginAuthLenEncClientData
-	clientCanHandleExpiredPasswords
-	clientSessionTrack
-	clientDeprecateEOF
-)
-
-const (
-	comQuit byte = iota + 1
-	comInitDB
-	comQuery
-	comFieldList
-	comCreateDB
-	comDropDB
-	comRefresh
-	comShutdown
-	comStatistics
-	comProcessInfo
-	comConnect
-	comProcessKill
-	comDebug
-	comPing
-	comTime
-	comDelayedInsert
-	comChangeUser
-	comBinlogDump
-	comTableDump
-	comConnectOut
-	comRegisterSlave
-	comStmtPrepare
-	comStmtExecute
-	comStmtSendLongData
-	comStmtClose
-	comStmtReset
-	comSetOption
-	comStmtFetch
-)
-
-// https://dev.mysql.com/doc/internals/en/com-query-response.html#packet-Protocol::ColumnType
-type fieldType byte
-
-const (
-	fieldTypeDecimal fieldType = iota
-	fieldTypeTiny
-	fieldTypeShort
-	fieldTypeLong
-	fieldTypeFloat
-	fieldTypeDouble
-	fieldTypeNULL
-	fieldTypeTimestamp
-	fieldTypeLongLong
-	fieldTypeInt24
-	fieldTypeDate
-	fieldTypeTime
-	fieldTypeDateTime
-	fieldTypeYear
-	fieldTypeNewDate
-	fieldTypeVarChar
-	fieldTypeBit
-)
-const (
-	fieldTypeJSON fieldType = iota + 0xf5
-	fieldTypeNewDecimal
-	fieldTypeEnum
-	fieldTypeSet
-	fieldTypeTinyBLOB
-	fieldTypeMediumBLOB
-	fieldTypeLongBLOB
-	fieldTypeBLOB
-	fieldTypeVarString
-	fieldTypeString
-	fieldTypeGeometry
-)
-
-type fieldFlag uint16
-
-const (
-	flagNotNULL fieldFlag = 1 << iota
-	flagPriKey
-	flagUniqueKey
-	flagMultipleKey
-	flagBLOB
-	flagUnsigned
-	flagZeroFill
-	flagBinary
-	flagEnum
-	flagAutoIncrement
-	flagTimestamp
-	flagSet
-	flagUnknown1
-	flagUnknown2
-	flagUnknown3
-	flagUnknown4
-)
-
-// http://dev.mysql.com/doc/internals/en/status-flags.html
-type statusFlag uint16
-
-const (
-	statusInTrans statusFlag = 1 << iota
-	statusInAutocommit
-	statusReserved // Not in documentation
-	statusMoreResultsExists
-	statusNoGoodIndexUsed
-	statusNoIndexUsed
-	statusCursorExists
-	statusLastRowSent
-	statusDbDropped
-	statusNoBackslashEscapes
-	statusMetadataChanged
-	statusQueryWasSlow
-	statusPsOutParams
-	statusInTransReadonly
-	statusSessionStateChanged
-)
--- a/vendor/github.com/go-sql-driver/mysql/driver.go
+++ b/vendor/github.com/go-sql-driver/mysql/driver.go
@@ -1,193 +0,0 @@
-// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-// Package mysql provides a MySQL driver for Go's database/sql package.
-//
-// The driver should be used via the database/sql package:
-//
-//  import "database/sql"
-//  import _ "github.com/go-sql-driver/mysql"
-//
-//  db, err := sql.Open("mysql", "user:password@/dbname")
-//
-// See https://github.com/go-sql-driver/mysql#usage for details
-package mysql
-
-import (
-	"database/sql"
-	"database/sql/driver"
-	"net"
-)
-
-// watcher interface is used for context support (From Go 1.8)
-type watcher interface {
-	startWatcher()
-}
-
-// MySQLDriver is exported to make the driver directly accessible.
-// In general the driver is used via the database/sql package.
-type MySQLDriver struct{}
-
-// DialFunc is a function which can be used to establish the network connection.
-// Custom dial functions must be registered with RegisterDial
-type DialFunc func(addr string) (net.Conn, error)
-
-var dials map[string]DialFunc
-
-// RegisterDial registers a custom dial function. It can then be used by the
-// network address mynet(addr), where mynet is the registered new network.
-// addr is passed as a parameter to the dial function.
-func RegisterDial(net string, dial DialFunc) {
-	if dials == nil {
-		dials = make(map[string]DialFunc)
-	}
-	dials[net] = dial
-}
-
-// Open new Connection.
-// See https://github.com/go-sql-driver/mysql#dsn-data-source-name for how
-// the DSN string is formated
-func (d MySQLDriver) Open(dsn string) (driver.Conn, error) {
-	var err error
-
-	// New mysqlConn
-	mc := &mysqlConn{
-		maxAllowedPacket: maxPacketSize,
-		maxWriteSize:     maxPacketSize - 1,
-		closech:          make(chan struct{}),
-	}
-	mc.cfg, err = ParseDSN(dsn)
-	if err != nil {
-		return nil, err
-	}
-	mc.parseTime = mc.cfg.ParseTime
-
-	// Connect to Server
-	if dial, ok := dials[mc.cfg.Net]; ok {
-		mc.netConn, err = dial(mc.cfg.Addr)
-	} else {
-		nd := net.Dialer{Timeout: mc.cfg.Timeout}
-		mc.netConn, err = nd.Dial(mc.cfg.Net, mc.cfg.Addr)
-	}
-	if err != nil {
-		return nil, err
-	}
-
-	// Enable TCP Keepalives on TCP connections
-	if tc, ok := mc.netConn.(*net.TCPConn); ok {
-		if err := tc.SetKeepAlive(true); err != nil {
-			// Don't send COM_QUIT before handshake.
-			mc.netConn.Close()
-			mc.netConn = nil
-			return nil, err
-		}
-	}
-
-	// Call startWatcher for context support (From Go 1.8)
-	if s, ok := interface{}(mc).(watcher); ok {
-		s.startWatcher()
-	}
-
-	mc.buf = newBuffer(mc.netConn)
-
-	// Set I/O timeouts
-	mc.buf.timeout = mc.cfg.ReadTimeout
-	mc.writeTimeout = mc.cfg.WriteTimeout
-
-	// Reading Handshake Initialization Packet
-	cipher, err := mc.readInitPacket()
-	if err != nil {
-		mc.cleanup()
-		return nil, err
-	}
-
-	// Send Client Authentication Packet
-	if err = mc.writeAuthPacket(cipher); err != nil {
-		mc.cleanup()
-		return nil, err
-	}
-
-	// Handle response to auth packet, switch methods if possible
-	if err = handleAuthResult(mc, cipher); err != nil {
-		// Authentication failed and MySQL has already closed the connection
-		// (https://dev.mysql.com/doc/internals/en/authentication-fails.html).
-		// Do not send COM_QUIT, just cleanup and return the error.
-		mc.cleanup()
-		return nil, err
-	}
-
-	if mc.cfg.MaxAllowedPacket > 0 {
-		mc.maxAllowedPacket = mc.cfg.MaxAllowedPacket
-	} else {
-		// Get max allowed packet size
-		maxap, err := mc.getSystemVar("max_allowed_packet")
-		if err != nil {
-			mc.Close()
-			return nil, err
-		}
-		mc.maxAllowedPacket = stringToInt(maxap) - 1
-	}
-	if mc.maxAllowedPacket < maxPacketSize {
-		mc.maxWriteSize = mc.maxAllowedPacket
-	}
-
-	// Handle DSN Params
-	err = mc.handleParams()
-	if err != nil {
-		mc.Close()
-		return nil, err
-	}
-
-	return mc, nil
-}
-
-func handleAuthResult(mc *mysqlConn, oldCipher []byte) error {
-	// Read Result Packet
-	cipher, err := mc.readResultOK()
-	if err == nil {
-		return nil // auth successful
-	}
-
-	if mc.cfg == nil {
-		return err // auth failed and retry not possible
-	}
-
-	// Retry auth if configured to do so.
-	if mc.cfg.AllowOldPasswords && err == ErrOldPassword {
-		// Retry with old authentication method. Note: there are edge cases
-		// where this should work but doesn't; this is currently "wontfix":
-		// https://github.com/go-sql-driver/mysql/issues/184
-
-		// If CLIENT_PLUGIN_AUTH capability is not supported, no new cipher is
-		// sent and we have to keep using the cipher sent in the init packet.
-		if cipher == nil {
-			cipher = oldCipher
-		}
-
-		if err = mc.writeOldAuthPacket(cipher); err != nil {
-			return err
-		}
-		_, err = mc.readResultOK()
-	} else if mc.cfg.AllowCleartextPasswords && err == ErrCleartextPassword {
-		// Retry with clear text password for
-		// http://dev.mysql.com/doc/refman/5.7/en/cleartext-authentication-plugin.html
-		// http://dev.mysql.com/doc/refman/5.7/en/pam-authentication-plugin.html
-		if err = mc.writeClearAuthPacket(); err != nil {
-			return err
-		}
-		_, err = mc.readResultOK()
-	} else if mc.cfg.AllowNativePasswords && err == ErrNativePassword {
-		if err = mc.writeNativeAuthPacket(cipher); err != nil {
-			return err
-		}
-		_, err = mc.readResultOK()
-	}
-	return err
-}
-
-func init() {
-	sql.Register("mysql", &MySQLDriver{})
-}
--- a/vendor/github.com/go-sql-driver/mysql/dsn.go
+++ b/vendor/github.com/go-sql-driver/mysql/dsn.go
@@ -1,587 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2016 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-import (
-	"bytes"
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"net"
-	"net/url"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-)
-
-var (
-	errInvalidDSNUnescaped       = errors.New("invalid DSN: did you forget to escape a param value?")
-	errInvalidDSNAddr            = errors.New("invalid DSN: network address not terminated (missing closing brace)")
-	errInvalidDSNNoSlash         = errors.New("invalid DSN: missing the slash separating the database name")
-	errInvalidDSNUnsafeCollation = errors.New("invalid DSN: interpolateParams can not be used with unsafe collations")
-)
-
-// Config is a configuration parsed from a DSN string.
-// If a new Config is created instead of being parsed from a DSN string,
-// the NewConfig function should be used, which sets default values.
-type Config struct {
-	User             string            // Username
-	Passwd           string            // Password (requires User)
-	Net              string            // Network type
-	Addr             string            // Network address (requires Net)
-	DBName           string            // Database name
-	Params           map[string]string // Connection parameters
-	Collation        string            // Connection collation
-	Loc              *time.Location    // Location for time.Time values
-	MaxAllowedPacket int               // Max packet size allowed
-	TLSConfig        string            // TLS configuration name
-	tls              *tls.Config       // TLS configuration
-	Timeout          time.Duration     // Dial timeout
-	ReadTimeout      time.Duration     // I/O read timeout
-	WriteTimeout     time.Duration     // I/O write timeout
-
-	AllowAllFiles           bool // Allow all files to be used with LOAD DATA LOCAL INFILE
-	AllowCleartextPasswords bool // Allows the cleartext client side plugin
-	AllowNativePasswords    bool // Allows the native password authentication method
-	AllowOldPasswords       bool // Allows the old insecure password method
-	ClientFoundRows         bool // Return number of matching rows instead of rows changed
-	ColumnsWithAlias        bool // Prepend table alias to column names
-	InterpolateParams       bool // Interpolate placeholders into query string
-	MultiStatements         bool // Allow multiple statements in one query
-	ParseTime               bool // Parse time values to time.Time
-	RejectReadOnly          bool // Reject read-only connections
-}
-
-// NewConfig creates a new Config and sets default values.
-func NewConfig() *Config {
-	return &Config{
-		Collation:            defaultCollation,
-		Loc:                  time.UTC,
-		MaxAllowedPacket:     defaultMaxAllowedPacket,
-		AllowNativePasswords: true,
-	}
-}
-
-func (cfg *Config) normalize() error {
-	if cfg.InterpolateParams && unsafeCollations[cfg.Collation] {
-		return errInvalidDSNUnsafeCollation
-	}
-
-	// Set default network if empty
-	if cfg.Net == "" {
-		cfg.Net = "tcp"
-	}
-
-	// Set default address if empty
-	if cfg.Addr == "" {
-		switch cfg.Net {
-		case "tcp":
-			cfg.Addr = "127.0.0.1:3306"
-		case "unix":
-			cfg.Addr = "/tmp/mysql.sock"
-		default:
-			return errors.New("default addr for network '" + cfg.Net + "' unknown")
-		}
-
-	} else if cfg.Net == "tcp" {
-		cfg.Addr = ensureHavePort(cfg.Addr)
-	}
-
-	return nil
-}
-
-// FormatDSN formats the given Config into a DSN string which can be passed to
-// the driver.
-func (cfg *Config) FormatDSN() string {
-	var buf bytes.Buffer
-
-	// [username[:password]@]
-	if len(cfg.User) > 0 {
-		buf.WriteString(cfg.User)
-		if len(cfg.Passwd) > 0 {
-			buf.WriteByte(':')
-			buf.WriteString(cfg.Passwd)
-		}
-		buf.WriteByte('@')
-	}
-
-	// [protocol[(address)]]
-	if len(cfg.Net) > 0 {
-		buf.WriteString(cfg.Net)
-		if len(cfg.Addr) > 0 {
-			buf.WriteByte('(')
-			buf.WriteString(cfg.Addr)
-			buf.WriteByte(')')
-		}
-	}
-
-	// /dbname
-	buf.WriteByte('/')
-	buf.WriteString(cfg.DBName)
-
-	// [?param1=value1&...&paramN=valueN]
-	hasParam := false
-
-	if cfg.AllowAllFiles {
-		hasParam = true
-		buf.WriteString("?allowAllFiles=true")
-	}
-
-	if cfg.AllowCleartextPasswords {
-		if hasParam {
-			buf.WriteString("&allowCleartextPasswords=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?allowCleartextPasswords=true")
-		}
-	}
-
-	if !cfg.AllowNativePasswords {
-		if hasParam {
-			buf.WriteString("&allowNativePasswords=false")
-		} else {
-			hasParam = true
-			buf.WriteString("?allowNativePasswords=false")
-		}
-	}
-
-	if cfg.AllowOldPasswords {
-		if hasParam {
-			buf.WriteString("&allowOldPasswords=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?allowOldPasswords=true")
-		}
-	}
-
-	if cfg.ClientFoundRows {
-		if hasParam {
-			buf.WriteString("&clientFoundRows=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?clientFoundRows=true")
-		}
-	}
-
-	if col := cfg.Collation; col != defaultCollation && len(col) > 0 {
-		if hasParam {
-			buf.WriteString("&collation=")
-		} else {
-			hasParam = true
-			buf.WriteString("?collation=")
-		}
-		buf.WriteString(col)
-	}
-
-	if cfg.ColumnsWithAlias {
-		if hasParam {
-			buf.WriteString("&columnsWithAlias=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?columnsWithAlias=true")
-		}
-	}
-
-	if cfg.InterpolateParams {
-		if hasParam {
-			buf.WriteString("&interpolateParams=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?interpolateParams=true")
-		}
-	}
-
-	if cfg.Loc != time.UTC && cfg.Loc != nil {
-		if hasParam {
-			buf.WriteString("&loc=")
-		} else {
-			hasParam = true
-			buf.WriteString("?loc=")
-		}
-		buf.WriteString(url.QueryEscape(cfg.Loc.String()))
-	}
-
-	if cfg.MultiStatements {
-		if hasParam {
-			buf.WriteString("&multiStatements=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?multiStatements=true")
-		}
-	}
-
-	if cfg.ParseTime {
-		if hasParam {
-			buf.WriteString("&parseTime=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?parseTime=true")
-		}
-	}
-
-	if cfg.ReadTimeout > 0 {
-		if hasParam {
-			buf.WriteString("&readTimeout=")
-		} else {
-			hasParam = true
-			buf.WriteString("?readTimeout=")
-		}
-		buf.WriteString(cfg.ReadTimeout.String())
-	}
-
-	if cfg.RejectReadOnly {
-		if hasParam {
-			buf.WriteString("&rejectReadOnly=true")
-		} else {
-			hasParam = true
-			buf.WriteString("?rejectReadOnly=true")
-		}
-	}
-
-	if cfg.Timeout > 0 {
-		if hasParam {
-			buf.WriteString("&timeout=")
-		} else {
-			hasParam = true
-			buf.WriteString("?timeout=")
-		}
-		buf.WriteString(cfg.Timeout.String())
-	}
-
-	if len(cfg.TLSConfig) > 0 {
-		if hasParam {
-			buf.WriteString("&tls=")
-		} else {
-			hasParam = true
-			buf.WriteString("?tls=")
-		}
-		buf.WriteString(url.QueryEscape(cfg.TLSConfig))
-	}
-
-	if cfg.WriteTimeout > 0 {
-		if hasParam {
-			buf.WriteString("&writeTimeout=")
-		} else {
-			hasParam = true
-			buf.WriteString("?writeTimeout=")
-		}
-		buf.WriteString(cfg.WriteTimeout.String())
-	}
-
-	if cfg.MaxAllowedPacket != defaultMaxAllowedPacket {
-		if hasParam {
-			buf.WriteString("&maxAllowedPacket=")
-		} else {
-			hasParam = true
-			buf.WriteString("?maxAllowedPacket=")
-		}
-		buf.WriteString(strconv.Itoa(cfg.MaxAllowedPacket))
-
-	}
-
-	// other params
-	if cfg.Params != nil {
-		var params []string
-		for param := range cfg.Params {
-			params = append(params, param)
-		}
-		sort.Strings(params)
-		for _, param := range params {
-			if hasParam {
-				buf.WriteByte('&')
-			} else {
-				hasParam = true
-				buf.WriteByte('?')
-			}
-
-			buf.WriteString(param)
-			buf.WriteByte('=')
-			buf.WriteString(url.QueryEscape(cfg.Params[param]))
-		}
-	}
-
-	return buf.String()
-}
-
-// ParseDSN parses the DSN string to a Config
-func ParseDSN(dsn string) (cfg *Config, err error) {
-	// New config with some default values
-	cfg = NewConfig()
-
-	// [user[:password]@][net[(addr)]]/dbname[?param1=value1&paramN=valueN]
-	// Find the last '/' (since the password or the net addr might contain a '/')
-	foundSlash := false
-	for i := len(dsn) - 1; i >= 0; i-- {
-		if dsn[i] == '/' {
-			foundSlash = true
-			var j, k int
-
-			// left part is empty if i <= 0
-			if i > 0 {
-				// [username[:password]@][protocol[(address)]]
-				// Find the last '@' in dsn[:i]
-				for j = i; j >= 0; j-- {
-					if dsn[j] == '@' {
-						// username[:password]
-						// Find the first ':' in dsn[:j]
-						for k = 0; k < j; k++ {
-							if dsn[k] == ':' {
-								cfg.Passwd = dsn[k+1 : j]
-								break
-							}
-						}
-						cfg.User = dsn[:k]
-
-						break
-					}
-				}
-
-				// [protocol[(address)]]
-				// Find the first '(' in dsn[j+1:i]
-				for k = j + 1; k < i; k++ {
-					if dsn[k] == '(' {
-						// dsn[i-1] must be == ')' if an address is specified
-						if dsn[i-1] != ')' {
-							if strings.ContainsRune(dsn[k+1:i], ')') {
-								return nil, errInvalidDSNUnescaped
-							}
-							return nil, errInvalidDSNAddr
-						}
-						cfg.Addr = dsn[k+1 : i-1]
-						break
-					}
-				}
-				cfg.Net = dsn[j+1 : k]
-			}
-
-			// dbname[?param1=value1&...&paramN=valueN]
-			// Find the first '?' in dsn[i+1:]
-			for j = i + 1; j < len(dsn); j++ {
-				if dsn[j] == '?' {
-					if err = parseDSNParams(cfg, dsn[j+1:]); err != nil {
-						return
-					}
-					break
-				}
-			}
-			cfg.DBName = dsn[i+1 : j]
-
-			break
-		}
-	}
-
-	if !foundSlash && len(dsn) > 0 {
-		return nil, errInvalidDSNNoSlash
-	}
-
-	if err = cfg.normalize(); err != nil {
-		return nil, err
-	}
-	return
-}
-
-// parseDSNParams parses the DSN "query string"
-// Values must be url.QueryEscape'ed
-func parseDSNParams(cfg *Config, params string) (err error) {
-	for _, v := range strings.Split(params, "&") {
-		param := strings.SplitN(v, "=", 2)
-		if len(param) != 2 {
-			continue
-		}
-
-		// cfg params
-		switch value := param[1]; param[0] {
-
-		// Disable INFILE whitelist / enable all files
-		case "allowAllFiles":
-			var isBool bool
-			cfg.AllowAllFiles, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Use cleartext authentication mode (MySQL 5.5.10+)
-		case "allowCleartextPasswords":
-			var isBool bool
-			cfg.AllowCleartextPasswords, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Use native password authentication
-		case "allowNativePasswords":
-			var isBool bool
-			cfg.AllowNativePasswords, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Use old authentication mode (pre MySQL 4.1)
-		case "allowOldPasswords":
-			var isBool bool
-			cfg.AllowOldPasswords, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Switch "rowsAffected" mode
-		case "clientFoundRows":
-			var isBool bool
-			cfg.ClientFoundRows, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Collation
-		case "collation":
-			cfg.Collation = value
-			break
-
-		case "columnsWithAlias":
-			var isBool bool
-			cfg.ColumnsWithAlias, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Compression
-		case "compress":
-			return errors.New("compression not implemented yet")
-
-		// Enable client side placeholder substitution
-		case "interpolateParams":
-			var isBool bool
-			cfg.InterpolateParams, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Time Location
-		case "loc":
-			if value, err = url.QueryUnescape(value); err != nil {
-				return
-			}
-			cfg.Loc, err = time.LoadLocation(value)
-			if err != nil {
-				return
-			}
-
-		// multiple statements in one query
-		case "multiStatements":
-			var isBool bool
-			cfg.MultiStatements, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// time.Time parsing
-		case "parseTime":
-			var isBool bool
-			cfg.ParseTime, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// I/O read Timeout
-		case "readTimeout":
-			cfg.ReadTimeout, err = time.ParseDuration(value)
-			if err != nil {
-				return
-			}
-
-		// Reject read-only connections
-		case "rejectReadOnly":
-			var isBool bool
-			cfg.RejectReadOnly, isBool = readBool(value)
-			if !isBool {
-				return errors.New("invalid bool value: " + value)
-			}
-
-		// Strict mode
-		case "strict":
-			panic("strict mode has been removed. See https://github.com/go-sql-driver/mysql/wiki/strict-mode")
-
-		// Dial Timeout
-		case "timeout":
-			cfg.Timeout, err = time.ParseDuration(value)
-			if err != nil {
-				return
-			}
-
-		// TLS-Encryption
-		case "tls":
-			boolValue, isBool := readBool(value)
-			if isBool {
-				if boolValue {
-					cfg.TLSConfig = "true"
-					cfg.tls = &tls.Config{}
-					host, _, err := net.SplitHostPort(cfg.Addr)
-					if err == nil {
-						cfg.tls.ServerName = host
-					}
-				} else {
-					cfg.TLSConfig = "false"
-				}
-			} else if vl := strings.ToLower(value); vl == "skip-verify" {
-				cfg.TLSConfig = vl
-				cfg.tls = &tls.Config{InsecureSkipVerify: true}
-			} else {
-				name, err := url.QueryUnescape(value)
-				if err != nil {
-					return fmt.Errorf("invalid value for TLS config name: %v", err)
-				}
-
-				if tlsConfig := getTLSConfigClone(name); tlsConfig != nil {
-					if len(tlsConfig.ServerName) == 0 && !tlsConfig.InsecureSkipVerify {
-						host, _, err := net.SplitHostPort(cfg.Addr)
-						if err == nil {
-							tlsConfig.ServerName = host
-						}
-					}
-
-					cfg.TLSConfig = name
-					cfg.tls = tlsConfig
-				} else {
-					return errors.New("invalid value / unknown config name: " + name)
-				}
-			}
-
-		// I/O write Timeout
-		case "writeTimeout":
-			cfg.WriteTimeout, err = time.ParseDuration(value)
-			if err != nil {
-				return
-			}
-		case "maxAllowedPacket":
-			cfg.MaxAllowedPacket, err = strconv.Atoi(value)
-			if err != nil {
-				return
-			}
-		default:
-			// lazy init
-			if cfg.Params == nil {
-				cfg.Params = make(map[string]string)
-			}
-
-			if cfg.Params[param[0]], err = url.QueryUnescape(value); err != nil {
-				return
-			}
-		}
-	}
-
-	return
-}
-
-func ensureHavePort(addr string) string {
-	if _, _, err := net.SplitHostPort(addr); err != nil {
-		return net.JoinHostPort(addr, "3306")
-	}
-	return addr
-}
--- a/vendor/github.com/go-sql-driver/mysql/errors.go
+++ b/vendor/github.com/go-sql-driver/mysql/errors.go
@@ -1,65 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-import (
-	"errors"
-	"fmt"
-	"log"
-	"os"
-)
-
-// Various errors the driver might return. Can change between driver versions.
-var (
-	ErrInvalidConn       = errors.New("invalid connection")
-	ErrMalformPkt        = errors.New("malformed packet")
-	ErrNoTLS             = errors.New("TLS requested but server does not support TLS")
-	ErrCleartextPassword = errors.New("this user requires clear text authentication. If you still want to use it, please add 'allowCleartextPasswords=1' to your DSN")
-	ErrNativePassword    = errors.New("this user requires mysql native password authentication.")
-	ErrOldPassword       = errors.New("this user requires old password authentication. If you still want to use it, please add 'allowOldPasswords=1' to your DSN. See also https://github.com/go-sql-driver/mysql/wiki/old_passwords")
-	ErrUnknownPlugin     = errors.New("this authentication plugin is not supported")
-	ErrOldProtocol       = errors.New("MySQL server does not support required protocol 41+")
-	ErrPktSync           = errors.New("commands out of sync. You can't run this command now")
-	ErrPktSyncMul        = errors.New("commands out of sync. Did you run multiple statements at once?")
-	ErrPktTooLarge       = errors.New("packet for query is too large. Try adjusting the 'max_allowed_packet' variable on the server")
-	ErrBusyBuffer        = errors.New("busy buffer")
-
-	// errBadConnNoWrite is used for connection errors where nothing was sent to the database yet.
-	// If this happens first in a function starting a database interaction, it should be replaced by driver.ErrBadConn
-	// to trigger a resend.
-	// See https://github.com/go-sql-driver/mysql/pull/302
-	errBadConnNoWrite = errors.New("bad connection")
-)
-
-var errLog = Logger(log.New(os.Stderr, "[mysql] ", log.Ldate|log.Ltime|log.Lshortfile))
-
-// Logger is used to log critical error messages.
-type Logger interface {
-	Print(v ...interface{})
-}
-
-// SetLogger is used to set the logger for critical errors.
-// The initial logger is os.Stderr.
-func SetLogger(logger Logger) error {
-	if logger == nil {
-		return errors.New("logger is nil")
-	}
-	errLog = logger
-	return nil
-}
-
-// MySQLError is an error type which represents a single MySQL error
-type MySQLError struct {
-	Number  uint16
-	Message string
-}
-
-func (me *MySQLError) Error() string {
-	return fmt.Sprintf("Error %d: %s", me.Number, me.Message)
-}
--- a/vendor/github.com/go-sql-driver/mysql/fields.go
+++ b/vendor/github.com/go-sql-driver/mysql/fields.go
@@ -1,140 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2017 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-import (
-	"database/sql"
-	"reflect"
-)
-
-var typeDatabaseName = map[fieldType]string{
-	fieldTypeBit:        "BIT",
-	fieldTypeBLOB:       "BLOB",
-	fieldTypeDate:       "DATE",
-	fieldTypeDateTime:   "DATETIME",
-	fieldTypeDecimal:    "DECIMAL",
-	fieldTypeDouble:     "DOUBLE",
-	fieldTypeEnum:       "ENUM",
-	fieldTypeFloat:      "FLOAT",
-	fieldTypeGeometry:   "GEOMETRY",
-	fieldTypeInt24:      "MEDIUMINT",
-	fieldTypeJSON:       "JSON",
-	fieldTypeLong:       "INT",
-	fieldTypeLongBLOB:   "LONGBLOB",
-	fieldTypeLongLong:   "BIGINT",
-	fieldTypeMediumBLOB: "MEDIUMBLOB",
-	fieldTypeNewDate:    "DATE",
-	fieldTypeNewDecimal: "DECIMAL",
-	fieldTypeNULL:       "NULL",
-	fieldTypeSet:        "SET",
-	fieldTypeShort:      "SMALLINT",
-	fieldTypeString:     "CHAR",
-	fieldTypeTime:       "TIME",
-	fieldTypeTimestamp:  "TIMESTAMP",
-	fieldTypeTiny:       "TINYINT",
-	fieldTypeTinyBLOB:   "TINYBLOB",
-	fieldTypeVarChar:    "VARCHAR",
-	fieldTypeVarString:  "VARCHAR",
-	fieldTypeYear:       "YEAR",
-}
-
-var (
-	scanTypeFloat32   = reflect.TypeOf(float32(0))
-	scanTypeFloat64   = reflect.TypeOf(float64(0))
-	scanTypeInt8      = reflect.TypeOf(int8(0))
-	scanTypeInt16     = reflect.TypeOf(int16(0))
-	scanTypeInt32     = reflect.TypeOf(int32(0))
-	scanTypeInt64     = reflect.TypeOf(int64(0))
-	scanTypeNullFloat = reflect.TypeOf(sql.NullFloat64{})
-	scanTypeNullInt   = reflect.TypeOf(sql.NullInt64{})
-	scanTypeNullTime  = reflect.TypeOf(NullTime{})
-	scanTypeUint8     = reflect.TypeOf(uint8(0))
-	scanTypeUint16    = reflect.TypeOf(uint16(0))
-	scanTypeUint32    = reflect.TypeOf(uint32(0))
-	scanTypeUint64    = reflect.TypeOf(uint64(0))
-	scanTypeRawBytes  = reflect.TypeOf(sql.RawBytes{})
-	scanTypeUnknown   = reflect.TypeOf(new(interface{}))
-)
-
-type mysqlField struct {
-	tableName string
-	name      string
-	length    uint32
-	flags     fieldFlag
-	fieldType fieldType
-	decimals  byte
-}
-
-func (mf *mysqlField) scanType() reflect.Type {
-	switch mf.fieldType {
-	case fieldTypeTiny:
-		if mf.flags&flagNotNULL != 0 {
-			if mf.flags&flagUnsigned != 0 {
-				return scanTypeUint8
-			}
-			return scanTypeInt8
-		}
-		return scanTypeNullInt
-
-	case fieldTypeShort, fieldTypeYear:
-		if mf.flags&flagNotNULL != 0 {
-			if mf.flags&flagUnsigned != 0 {
-				return scanTypeUint16
-			}
-			return scanTypeInt16
-		}
-		return scanTypeNullInt
-
-	case fieldTypeInt24, fieldTypeLong:
-		if mf.flags&flagNotNULL != 0 {
-			if mf.flags&flagUnsigned != 0 {
-				return scanTypeUint32
-			}
-			return scanTypeInt32
-		}
-		return scanTypeNullInt
-
-	case fieldTypeLongLong:
-		if mf.flags&flagNotNULL != 0 {
-			if mf.flags&flagUnsigned != 0 {
-				return scanTypeUint64
-			}
-			return scanTypeInt64
-		}
-		return scanTypeNullInt
-
-	case fieldTypeFloat:
-		if mf.flags&flagNotNULL != 0 {
-			return scanTypeFloat32
-		}
-		return scanTypeNullFloat
-
-	case fieldTypeDouble:
-		if mf.flags&flagNotNULL != 0 {
-			return scanTypeFloat64
-		}
-		return scanTypeNullFloat
-
-	case fieldTypeDecimal, fieldTypeNewDecimal, fieldTypeVarChar,
-		fieldTypeBit, fieldTypeEnum, fieldTypeSet, fieldTypeTinyBLOB,
-		fieldTypeMediumBLOB, fieldTypeLongBLOB, fieldTypeBLOB,
-		fieldTypeVarString, fieldTypeString, fieldTypeGeometry, fieldTypeJSON,
-		fieldTypeTime:
-		return scanTypeRawBytes
-
-	case fieldTypeDate, fieldTypeNewDate,
-		fieldTypeTimestamp, fieldTypeDateTime:
-		// NullTime is always returned for more consistent behavior as it can
-		// handle both cases of parseTime regardless if the field is nullable.
-		return scanTypeNullTime
-
-	default:
-		return scanTypeUnknown
-	}
-}
--- a/vendor/github.com/go-sql-driver/mysql/infile.go
+++ b/vendor/github.com/go-sql-driver/mysql/infile.go
@@ -1,183 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"strings"
-	"sync"
-)
-
-var (
-	fileRegister       map[string]bool
-	fileRegisterLock   sync.RWMutex
-	readerRegister     map[string]func() io.Reader
-	readerRegisterLock sync.RWMutex
-)
-
-// RegisterLocalFile adds the given file to the file whitelist,
-// so that it can be used by "LOAD DATA LOCAL INFILE <filepath>".
-// Alternatively you can allow the use of all local files with
-// the DSN parameter 'allowAllFiles=true'
-//
-//  filePath := "/home/gopher/data.csv"
-//  mysql.RegisterLocalFile(filePath)
-//  err := db.Exec("LOAD DATA LOCAL INFILE '" + filePath + "' INTO TABLE foo")
-//  if err != nil {
-//  ...
-//
-func RegisterLocalFile(filePath string) {
-	fileRegisterLock.Lock()
-	// lazy map init
-	if fileRegister == nil {
-		fileRegister = make(map[string]bool)
-	}
-
-	fileRegister[strings.Trim(filePath, `"`)] = true
-	fileRegisterLock.Unlock()
-}
-
-// DeregisterLocalFile removes the given filepath from the whitelist.
-func DeregisterLocalFile(filePath string) {
-	fileRegisterLock.Lock()
-	delete(fileRegister, strings.Trim(filePath, `"`))
-	fileRegisterLock.Unlock()
-}
-
-// RegisterReaderHandler registers a handler function which is used
-// to receive a io.Reader.
-// The Reader can be used by "LOAD DATA LOCAL INFILE Reader::<name>".
-// If the handler returns a io.ReadCloser Close() is called when the
-// request is finished.
-//
-//  mysql.RegisterReaderHandler("data", func() io.Reader {
-//  	var csvReader io.Reader // Some Reader that returns CSV data
-//  	... // Open Reader here
-//  	return csvReader
-//  })
-//  err := db.Exec("LOAD DATA LOCAL INFILE 'Reader::data' INTO TABLE foo")
-//  if err != nil {
-//  ...
-//
-func RegisterReaderHandler(name string, handler func() io.Reader) {
-	readerRegisterLock.Lock()
-	// lazy map init
-	if readerRegister == nil {
-		readerRegister = make(map[string]func() io.Reader)
-	}
-
-	readerRegister[name] = handler
-	readerRegisterLock.Unlock()
-}
-
-// DeregisterReaderHandler removes the ReaderHandler function with
-// the given name from the registry.
-func DeregisterReaderHandler(name string) {
-	readerRegisterLock.Lock()
-	delete(readerRegister, name)
-	readerRegisterLock.Unlock()
-}
-
-func deferredClose(err *error, closer io.Closer) {
-	closeErr := closer.Close()
-	if *err == nil {
-		*err = closeErr
-	}
-}
-
-func (mc *mysqlConn) handleInFileRequest(name string) (err error) {
-	var rdr io.Reader
-	var data []byte
-	packetSize := 16 * 1024 // 16KB is small enough for disk readahead and large enough for TCP
-	if mc.maxWriteSize < packetSize {
-		packetSize = mc.maxWriteSize
-	}
-
-	if idx := strings.Index(name, "Reader::"); idx == 0 || (idx > 0 && name[idx-1] == '/') { // io.Reader
-		// The server might return an an absolute path. See issue #355.
-		name = name[idx+8:]
-
-		readerRegisterLock.RLock()
-		handler, inMap := readerRegister[name]
-		readerRegisterLock.RUnlock()
-
-		if inMap {
-			rdr = handler()
-			if rdr != nil {
-				if cl, ok := rdr.(io.Closer); ok {
-					defer deferredClose(&err, cl)
-				}
-			} else {
-				err = fmt.Errorf("Reader '%s' is <nil>", name)
-			}
-		} else {
-			err = fmt.Errorf("Reader '%s' is not registered", name)
-		}
-	} else { // File
-		name = strings.Trim(name, `"`)
-		fileRegisterLock.RLock()
-		fr := fileRegister[name]
-		fileRegisterLock.RUnlock()
-		if mc.cfg.AllowAllFiles || fr {
-			var file *os.File
-			var fi os.FileInfo
-
-			if file, err = os.Open(name); err == nil {
-				defer deferredClose(&err, file)
-
-				// get file size
-				if fi, err = file.Stat(); err == nil {
-					rdr = file
-					if fileSize := int(fi.Size()); fileSize < packetSize {
-						packetSize = fileSize
-					}
-				}
-			}
-		} else {
-			err = fmt.Errorf("local file '%s' is not registered", name)
-		}
-	}
-
-	// send content packets
-	// if packetSize == 0, the Reader contains no data
-	if err == nil && packetSize > 0 {
-		data := make([]byte, 4+packetSize)
-		var n int
-		for err == nil {
-			n, err = rdr.Read(data[4:])
-			if n > 0 {
-				if ioErr := mc.writePacket(data[:4+n]); ioErr != nil {
-					return ioErr
-				}
-			}
-		}
-		if err == io.EOF {
-			err = nil
-		}
-	}
-
-	// send empty packet (termination)
-	if data == nil {
-		data = make([]byte, 4)
-	}
-	if ioErr := mc.writePacket(data[:4]); ioErr != nil {
-		return ioErr
-	}
-
-	// read OK packet
-	if err == nil {
-		_, err = mc.readResultOK()
-		return err
-	}
-
-	mc.readPacket()
-	return err
-}
--- a/vendor/github.com/go-sql-driver/mysql/packets.go
+++ b/vendor/github.com/go-sql-driver/mysql/packets.go
--- a/vendor/github.com/go-sql-driver/mysql/result.go
+++ b/vendor/github.com/go-sql-driver/mysql/result.go
@@ -1,22 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-type mysqlResult struct {
-	affectedRows int64
-	insertId     int64
-}
-
-func (res *mysqlResult) LastInsertId() (int64, error) {
-	return res.insertId, nil
-}
-
-func (res *mysqlResult) RowsAffected() (int64, error) {
-	return res.affectedRows, nil
-}
--- a/vendor/github.com/go-sql-driver/mysql/rows.go
+++ b/vendor/github.com/go-sql-driver/mysql/rows.go
@@ -1,219 +0,0 @@
-// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
-//
-// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this file,
-// You can obtain one at http://mozilla.org/MPL/2.0/.
-
-package mysql
-
-import (
-	"database/sql/driver"
-	"io"
-	"math"
-	"reflect"
-)
-
-type resultSet struct {
-	columns     []mysqlField
-	columnNames []string
-	done        bool
-}
-
-type mysqlRows struct {
-	mc     *mysqlConn
-	rs     resultSet
-	finish func()
-}
-
-type binaryRows struct {
-	mysqlRows
-}
-
-type textRows struct {
-	mysqlRows
-}
-
-func (rows *mysqlRows) Columns() []string {
-	if rows.rs.columnNames != nil {
-		return rows.rs.columnNames
-	}
-
-	columns := make([]string, len(rows.rs.columns))
-	if rows.mc != nil && rows.mc.cfg.ColumnsWithAlias {
-		for i := range columns {
-			if tableName := rows.rs.columns[i].tableName; len(tableName) > 0 {
-				columns[i] = tableName + "." + rows.rs.columns[i].name
-			} else {
-				columns[i] = rows.rs.columns[i].name
-			}
-		}
-	} else {
-		for i := range columns {
-			columns[i] = rows.rs.columns[i].name
-		}
-	}
-
-	rows.rs.columnNames = columns
-	return columns
-}
-
-func (rows *mysqlRows) ColumnTypeDatabaseTypeName(i int) string {
-	if name, ok := typeDatabaseName[rows.rs.columns[i].fieldType]; ok {
-		return name
-	}
-	return ""
-}
-
-// func (rows *mysqlRows) ColumnTypeLength(i int) (length int64, ok bool) {
-// 	return int64(rows.rs.columns[i].length), true
-// }
-
-func (rows *mysqlRows) ColumnTypeNullable(i int) (nullable, ok bool) {
-	return rows.rs.columns[i].flags&flagNotNULL == 0, true
-}
-
-func (rows *mysqlRows) ColumnTypePrecisionScale(i int) (int64, int64, bool) {
-	column := rows.rs.columns[i]
-	decimals := int64(column.decimals)
-
-	switch column.fieldType {
-	case fieldTypeDecimal, fieldTypeNewDecimal:
-		if decimals > 0 {
-			return int64(column.length) - 2, decimals, true
-		}
-		return int64(column.length) - 1, decimals, true
-	case fieldTypeTimestamp, fieldTypeDateTime, fieldTypeTime:
-		return decimals, decimals, true
-	case fieldTypeFloat, fieldTypeDouble:
-		if decimals == 0x1f {
-			return math.MaxInt64, math.MaxInt64, true
-		}
-		return math.MaxInt64, decimals, true
-	}
-
-	return 0, 0, false
-}
-
-func (rows *mysqlRows) ColumnTypeScanType(i int) reflect.Type {
-	return rows.rs.columns[i].scanType()
-}
-
-func (rows *mysqlRows) Close() (err error) {
-	if f := rows.finish; f != nil {
-		f()
-		rows.finish = nil
-	}
-
-	mc := rows.mc
-	if mc == nil {
-		return nil
-	}
-	if err := mc.error(); err != nil {
-		return err
-	}
-
-	// Remove unread packets from stream
-	if !rows.rs.done {
-		err = mc.readUntilEOF()
-	}
-	if err == nil {
-		if err = mc.discardResults(); err != nil {
-			return err
-		}
-	}
-
-	rows.mc = nil
-	return err
-}
-
-func (rows *mysqlRows) HasNextResultSet() (b bool) {
-	if rows.mc == nil {
-		return false
-	}
-	return rows.mc.status&statusMoreResultsExists != 0
-}
-
-func (rows *mysqlRows) nextResultSet() (int, error) {
-	if rows.mc == nil {
-		return 0, io.EOF
-	}
-	if err := rows.mc.error(); err != nil {
-		return 0, err
-	}
-
-	// Remove unread packets from stream
-	if !rows.rs.done {
-		if err := rows.mc.readUntilEOF(); err != nil {
-			return 0, err
-		}
-		rows.rs.done = true
-	}
-
-	if !rows.HasNextResultSet() {
-		rows.mc = nil
-		return 0, io.EOF
-	}
-	rows.rs = resultSet{}
-	return rows.mc.readResultSetHeaderPacket()
-}
-
-func (rows *mysqlRows) nextNotEmptyResultSet() (int, error) {
-	for {
-		resLen, err := rows.nextResultSet()
-		if err != nil {
-			return 0, err
-		}
-
-		if resLen > 0 {
-			return resLen, nil
-		}
-
-		rows.rs.done = true
-	}
-}
-
-func (rows *binaryRows) NextResultSet() error {
-	resLen, err := rows.nextNotEmptyResultSet()
-	if err != nil {
-		return err
-	}
-
-	rows.rs.columns, err = rows.mc.readColumns(resLen)
-	return err
-}
-
-func (rows *binaryRows) Next(dest []driver.Value) error {
-	if mc := rows.mc; mc != nil {
-		if err := mc.error(); err != nil {
-			return err
-		}
-
-		// Fetch next row from stream
-		return rows.readRow(dest)
-	}
-	return io.EOF
-}
-
-func (rows *textRows) NextResultSet() (err error) {
-	resLen, err := rows.nextNotEmptyResultSet()
-	if err != nil {
-		return err
-	}
-
-	rows.rs.columns, err = rows.mc.readColumns(resLen)
-	return err
-}
-
-func (rows *textRows) Next(dest []driver.Value) error {
-	if mc := rows.mc; mc != nil {
-		if err := mc.error(); err != nil {
-			return err
-		}
-
-		// Fetch next row from stream
-		return rows.readRow(dest)
-	}
-	return io.EOF
-}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Manfred Touron	2d4a99b127	chore: switch to multiline function definition in resolver.go	2018-12-09 11:37:36 +01:00
Manfred Touron	2cdc19dfdd	Merge pull request #109 from moul/moul-patch-1 Update renovate.json	2018-12-07 14:53:50 +01:00
Manfred Touron	d8a7b1e16c	Update renovate.json	2018-12-07 14:49:50 +01:00
Manfred Touron	d7490d089c	Merge pull request #102 from moul/dev/mou/bump-deps2 chore: bump deps	2018-11-25 09:46:57 +01:00
Manfred Touron	774c6c0f64	chore: bump deps	2018-11-25 09:43:28 +01:00
Manfred Touron	92d11c53de	Merge pull request #98 from Raerten/env-variables use Environment Variables for settings	2018-11-25 09:41:09 +01:00
Manfred Touron	c509f65a27	Merge pull request #101 from moul/dev/moul/windows-support fix a build constraint	2018-11-25 09:40:00 +01:00
Дмитрий Шульгачик	20b9e839d3	fix a build constraint	2018-11-25 09:34:41 +01:00
Дмитрий Шульгачик	6f4fb24cd0	update mysql example using ENV	2018-11-19 14:56:24 +03:00
Дмитрий Шульгачик	23a89fe1de	Add ability to set DB driver and DB credentials from environment variables	2018-11-19 14:49:31 +03:00
Manfred Touron	559df1f523	Merge pull request #96 from moul/dev/moul/bump-deps chore: bump deps	2018-11-18 15:58:07 +01:00
Manfred Touron	ad2b8ebc38	chore: bump deps	2018-11-18 15:54:11 +01:00
Manfred Touron	3824629d4d	Post-release version bump	2018-11-18 15:48:42 +01:00
Manfred Touron	38224714e1	v1.9.0	2018-11-18 15:46:55 +01:00
Manfred Touron	a9f4227bba	Merge pull request #90 from alenn-m/master fix #69	2018-11-18 15:32:37 +01:00
Alen Masic	06bde77f51	fixed the issue when Author didn't update	2018-11-17 10:39:34 +01:00
Alen Masic	2a2554e7a3	fix #69	2018-11-16 17:31:59 +01:00
Manfred Touron	5d835011e6	Merge pull request #87 from moul/dev/moul/golangci-lint build: switch to golangci-lint	2018-11-16 17:26:26 +01:00
Manfred Touron	0f294cd62d	build: switch to golangci-lint	2018-11-16 17:20:39 +01:00
Manfred Touron	8e62d21c25	Merge pull request #86 from moul/dev/moul/canonical Switching to moul.io/sshportal (canonical url)	2018-11-16 15:42:38 +01:00
Manfred Touron	2a5dd63e87	chore: use moul.io/sshportal canonical url	2018-11-16 15:36:14 +01:00
Manfred Touron	06cb424b8f	chore: bump deps	2018-11-16 15:29:51 +01:00
Manfred Touron	7c5864a9c3	Merge pull request #83 from moul/dev/moul/gomod build: switch to go modules	2018-11-16 15:17:22 +01:00
Manfred Touron	668e34ccab	build: switch to go modules	2018-11-16 15:02:47 +01:00
Manfred Touron	95477715fc	Merge pull request #75 from vdaviot/closed_session [FIX] session status and duration displaying properly	2018-11-16 10:19:38 +01:00
Manfred Touron	ecc004a485	Merge pull request #74 from vdaviot/unset_hop [FIX] unsetting hop on host	2018-11-16 10:18:10 +01:00
valentin.daviot	9f0657374b	unsetting work properly	2018-11-16 10:12:49 +01:00
Manfred Touron	61b7f72e94	Merge pull request #76 from vdaviot/active_session_list [FIX] Session ls on big databases	2018-11-16 10:10:30 +01:00
Manfred Touron	db000baaa5	Merge pull request #67 from moul/renovate/configure Configure Renovate	2018-11-16 10:05:42 +01:00
valentin.daviot	a1a3a29d00	session status and duration displaying properly	2018-11-16 10:03:37 +01:00
valentin.daviot	2ea73a941f	listing active session	2018-11-16 10:01:23 +01:00
valentin.daviot	e860b60d20	session status and duration displaying properly	2018-11-16 10:01:23 +01:00
Manfred Touron	d6be01b9b7	build: temporarily disable gometalinter before changing to another solution	2018-11-16 09:59:18 +01:00
Manfred Touron	64c8e01c33	Merge pull request #80 from ahhx/idle-timeout add idle connection timeout and idle-timeout flag	2018-11-16 09:53:02 +01:00
ahh	acce797e55	add logging	2018-11-15 13:56:10 -05:00
ahh	175fc8d68b	add timeout and flag	2018-11-15 13:38:18 -05:00
Renovate Bot	b9d1cf69c7	Add renovate.json	2018-08-19 01:32:26 +00:00
Manfred Touron	41eeb364f8	Ignore some circle CI tests	2018-08-18 23:43:48 +02:00
Manfred Touron	a22f8f0b7b	Merge pull request #58 from adyxax/master Added `hostgroup update` and `usergroup update` features	2018-04-06 09:34:17 +02:00
Julien Dessaux	bd1c3609a7	Added `hostgroup update` and `usergroup update` features	2018-04-05 16:25:43 +02:00
Manfred Touron	c5e75df64f	Post-release version bump	2018-04-02 22:36:07 +02:00
Manfred Touron	6b181dd291	v1.8.0	2018-04-02 22:36:06 +02:00
Manfred Touron	4ab88cad10	fix merge	2018-04-02 22:36:06 +02:00
Manfred Touron	b902953df4	Update changelog	2018-04-02 22:36:06 +02:00
Manuel Sabban	e141368734	Add log for exec request.	2018-04-02 22:36:06 +02:00
Manfred Touron	980da40988	Update Readme and Changelog	2018-04-02 22:28:10 +02:00
Manfred Touron	22d25f1e70	Merge pull request #44 from sabban/tunnel Logtunnel	2018-03-24 00:02:31 +01:00
Manfred Touron	84d77d0a9f	Merge pull request #52 from adyxax/master Added ssh key import feature in "key import"	2018-03-23 23:29:37 +01:00
Julien Dessaux	b0afdf933a	Added ssh key import feature in "key import"	2018-03-21 17:48:11 +01:00
Manuel	e9eef9a49e	add an acceptable error management.	2018-03-19 18:06:03 +01:00
Manfred Touron	6f2b58cbdc	chore: esthetics + update changelog	2018-03-14 18:17:40 +01:00
Manfred Touron	09ac2c35f3	Merge pull request #54 from jle64/dont_crash_on_missing_user Show 'n/a' in case of missing information to avoid crashing.	2018-03-14 18:13:08 +01:00
Jonathan Lestrelin	47a6fc9906	Show 'n/a' in case of missing information to avoid crashing.	2018-03-14 17:40:48 +01:00
Manuel	c3d49fde95	Merge branch 'master' of https://github.com/moul/sshportal into tunnel	2018-03-12 12:31:17 +01:00
Manfred Touron	ec1e4d5c8a	Update README and CHANGELOG	2018-02-28 17:22:59 +01:00
Manfred Touron	e65ef7ccc1	Merge pull request #47 from mathieui/multi-hops Implement proxied connections	2018-02-28 17:20:18 +01:00
Manfred Touron	68e7fd2090	Merge pull request #49 from moul/dev/moul/fix-mysql-delete Fix `--assign` commands when using MySQL driver	2018-02-28 16:56:29 +01:00
Manfred Touron	b958f8461f	Fix commands when using MySQL driver ([#45 ](https://github.com/moul/sshportal/issues/45 ))	2018-02-28 16:54:32 +01:00
Manfred Touron	a08d84e7ed	Merge pull request #48 from moul/dev/moul/fix-make-dev-cmd Small fixes	2018-02-28 16:29:36 +01:00
Manfred Touron	2b66d8d56a	Ingore /log directory	2018-02-28 14:35:38 +01:00
Manfred Touron	a40789e1f2	Fix 'make dev' rule	2018-02-28 14:35:06 +01:00
Mathieu Pasquet	63571af252	Add hops management in "host update" - allow changing the hop set for this host - allow removing hops altogether	2018-02-27 17:54:57 +01:00
Mathieu Pasquet	75c6840ecd	Implement proxied connections The feature is implemented as follows: - when creating a host, there is a possiblity to add a "hop" - hops are referend them with the name of the host in sshportal - the hop ID is then saved in the DB in the hosts table - when connecting to a host, sshportal will recurse through all the possible hops of a host (allowing chained proxies)	2018-02-22 18:07:41 +01:00
Manfred Touron	e6a02a85f0	Fix typo in template	2018-02-03 00:45:05 +01:00
Manuel Sabban	2c3de75f3d	Logtunnel (#1 ) * * When a new channel is opened we got stuck in the select loop in bastionsession.go, and we couldn't open a new channel. The fix is easy it calls the bastionsession.ChannelHandler in a goroutine, at the cost of some error management. I think this is ok because we can allow a channel to fail on his own. This seems to be * This add the tunnel feature, which use a new concurrent channel. * This add some pcap logging for tunnel. For now it is logged only one way, and the logged ip packet seems buggy. * Add logtunnuel as a package. The logfile format is a tweaked version of ttyrec format file as it will be easy to review the use of human readable tunnel... To get the ChannelHandler work as a go routine I had to deactivate lint errcheck for logcahnnel. I think this could be a problem. What is your thoughts about this ?	2018-01-18 11:20:37 +01:00
Manfred Touron	7c4aab34ed	Merge pull request #39 from moul/moul/alt/gh-tmpl Add GitHub templates	2018-01-11 13:15:37 +01:00
Manfred Touron	a8480f82e0	Merge pull request #38 from QuentinPerez/split-main cleanup main	2018-01-11 13:15:09 +01:00
Manfred Touron	a5dacca9a1	Create ISSUE_TEMPLATE.md	2018-01-08 10:04:09 +01:00
Manfred Touron	31ba233b34	Create PULL_REQUEST_TEMPLATE.md	2018-01-08 09:41:10 +01:00
Quentin Perez	5720123576	main: remove globalContext, and move some functions outside of the main	2018-01-07 14:09:43 +01:00
Manfred Touron	9cc09b320d	Merge pull request #36 from moul/sabban Add audit feature	2018-01-05 11:09:26 +01:00
Manfred Touron	cb3c1056e5	Small fixes	2018-01-05 11:05:42 +01:00
Manfred Touron	82f96e457c	Merge branch 'master' into sabban	2018-01-05 10:39:04 +01:00
Manfred Touron	062e2b4b8f	Merge pull request #35 from moul/dev/moul/homebrew Add homebrew config	2018-01-05 10:28:11 +01:00
Manfred Touron	9de51acbcc	Add homebrew config	2018-01-05 10:24:43 +01:00
Manfred Touron	6d3a97cdbc	Merge pull request #34 from moul/dev/moul/telnet Add telnet support	2018-01-05 10:18:25 +01:00
Manfred Touron	3ebcdd9c3d	Add telnet support	2018-01-05 10:14:02 +01:00
Manfred Touron	a9f86d1d01	Remove gliderlabs/ssh from vendor.json to avoid updating it	2018-01-05 10:13:45 +01:00
Manfred Touron	2a68fc3114	Support having different host.Scheme	2018-01-05 10:13:45 +01:00
Manfred Touron	2352a53e6e	Add telnet dependencies	2018-01-05 10:13:45 +01:00
Manuel	fcc94c58d9	get rid of this package as we use it from its home location.	2018-01-04 14:15:05 +01:00
Manuel	da9c4920ab	add log directory creation if it does not exist.	2018-01-04 13:41:14 +01:00
Manuel	0295eedb6e	fix log location	2018-01-04 11:49:24 +01:00
Manuel	7f26cc1dbb	Fix the default log path to ./log	2018-01-04 11:45:05 +01:00
Manuel	9e1c395810	add fatal error when record file cannot be opened.	2018-01-04 11:43:44 +01:00
Manuel	9db4b92d4e	Use of govendor and add "github.com/arkan/bastion/pkg/logchannel" pkg.	2018-01-04 11:32:51 +01:00
Manuel	ff46ee89d9	logs_location -> logsLocation	2018-01-04 11:31:51 +01:00
Manfred Touron	b9af077ef4	Merge pull request #33 from moul/dev/moul/default-username Dynamic username for the first created account	2018-01-03 19:54:21 +01:00
Manfred Touron	b23ee4144d	The default created user now has the same username as the user starting sshportal (was hardcoded admin)	2018-01-03 19:00:52 +01:00
Manuel	57f894bfca	Merge branch 'master' of https://github.com/moul/sshportal into sabban pull from master.	2018-01-03 14:22:28 +01:00
Manuel	58e2abca8c	Fix when error on session file creation.	2018-01-03 14:06:05 +01:00
Manuel	ed676b0d7e	add the pkg	2018-01-03 10:56:49 +01:00
Manfred Touron	ed42f343d2	Post-release version bump	2018-01-03 00:27:07 +01:00
Manfred Touron	2555c478b4	v1.7.1	2018-01-03 00:26:38 +01:00
Manfred Touron	6152e55e7d	Merge pull request #30 from moul/dev/moul/more-integration-tests More integration tests	2018-01-03 00:25:45 +01:00
Manfred Touron	023cdd1bb3	Test bastion in integration	2018-01-03 00:23:46 +01:00
Manfred Touron	5efe250466	hotfix: repair invite system (broken in v1.7.0)	2018-01-03 00:23:46 +01:00
Manfred Touron	695ddc91dd	Return non-null exit-code on authentication error	2018-01-03 00:23:46 +01:00
Manfred Touron	7b30017a14	Complete list of features	2018-01-03 00:23:45 +01:00
Manfred Touron	e5542ae266	Update graphs	2018-01-03 00:23:45 +01:00
Manfred Touron	d19b8a53f2	Add dependencies	2018-01-03 00:23:45 +01:00
Manfred Touron	2e39f70cd5	Add '_test_server' hidden handler	2018-01-03 00:23:45 +01:00
Manuel	26c0bb8b1a	typo	2018-01-02 17:43:53 +01:00
Manuel	12b0db07da	add audit feature.	2018-01-02 16:31:34 +01:00
Manfred Touron	7aace9109a	Update Changelog	2018-01-02 05:58:54 +01:00
Manfred Touron	6c4caea26f	Post-release version bump	2018-01-02 05:57:13 +01:00
Manfred Touron	13c0726849	v1.7.0	2018-01-02 05:56:24 +01:00
Manfred Touron	1b52673603	Add missing ch.Close() on premature error	2018-01-02 05:55:01 +01:00
Manfred Touron	7ea7237d19	Merge pull request #25 from moul/dev/moul/fix-24 Support putty	2018-01-02 05:46:10 +01:00
Manfred Touron	d6bb5e44a1	Refactor bastion handler to forward every requests properly	2018-01-02 05:37:24 +01:00
Manfred Touron	072464928b	Refactor sshportal: create a custom bastion session handler	2018-01-01 22:15:28 +01:00
Manfred Touron	4125bc2768	Refactor gliderlabs/ssh to support custom handlers	2018-01-01 22:14:44 +01:00
Manfred Touron	ee29310ed3	Update gliderlabs/ssh dependency to latest upstream commit hash	2018-01-01 22:14:44 +01:00
Manfred Touron	0e6917ae2a	Merge pull request #29 from moul/dev/moul/docker-healthcheck Add Docker healthcheck helper	2018-01-01 11:08:46 +01:00
Manfred Touron	57dd2c6c01	Add healthcheck --wait and --quiet options	2018-01-01 11:05:05 +01:00
Manfred Touron	6494e69632	Add Docker healthcheck helper	2018-01-01 10:58:43 +01:00
Manfred Touron	d6ea80dab1	Merge pull request #28 from moul/dev/moul/ci-integration Run integration tests on CI	2018-01-01 09:30:35 +01:00
Manfred Touron	fbb3e7134f	Run integration tests in parallel in CI	2018-01-01 09:28:34 +01:00
Manfred Touron	9fdb36c6ca	Refactor 'make integration' to be runnable with docker-compose	2018-01-01 09:16:09 +01:00
Manfred Touron	9bc545b4bb	Add `config backup --ignore-events` option	2018-01-01 09:07:41 +01:00
Manfred Touron	457f60f815	Use `sshportal server` instead of `sshportal` to start a new server	2018-01-01 09:07:41 +01:00
Manfred Touron	78db26a532	Merge pull request #26 from moul/dev/moul/fix-22 Fix connection failure when sending too many environment variables	2017-12-28 23:29:41 +01:00
Manfred Touron	fb15225c35	Fix connection failure when sending too many environment variables (fix #22 ) Temporary fix A better solution requires a refactor of the ssh session handler (related with #24) Related with this comment: https://github.com/gliderlabs/ssh/issues/47#issuecomment-340550104	2017-12-28 23:25:11 +01:00
Manfred Touron	c8fb103762	Merge pull request #21 from sabban/master typo fix.	2017-12-21 15:37:55 +01:00
Manuel	585fd3a3ff	typo fix.	2017-12-21 15:35:26 +01:00
Manfred Touron	0aefd4d093	Merge pull request #20 from sabban/master fix typo.	2017-12-21 13:08:34 +01:00
Manuel	5f0c5b3375	fix typo.	2017-12-21 12:32:18 +01:00
Manfred Touron	6b0b22cb7b	Merge pull request #19 from QuentinPerez/typo fix typo 's/aes-keuy/aes-key'	2017-12-19 09:34:15 +01:00
Quentin Perez	0f84be8fa0	fix typo 's/aes-keuy/aes-key'	2017-12-19 09:10:37 +01:00
Manfred Touron	849a485621	Merge pull request #18 from alexanderturner/fix/vendor+shell Small fixes	2017-12-19 07:31:21 +01:00
Alexander Turner	a721d4ff01	-Updated typo in shell /s/invite-/invite: -Removed gliderlabs/ssh from vendor.json to force /vendor version until committed upstream	2017-12-19 12:24:51 +11:00
Manfred Touron	62c8fe2dbf	Update .dockerignore	2017-12-17 10:25:55 +01:00
Manfred Touron	756c8f02e8	Add diagram flow	2017-12-17 10:11:34 +01:00
Manfred Touron	62db91b7be	Merge pull request #16 from fossabot/master Add license scan report and status	2017-12-16 10:10:36 +01:00
Manfred Touron	8543a1f01a	Add goreport card + udpate features and limitations list	2017-12-16 10:06:46 +01:00
fossabot	db20c81a39	Add license scan report and status	2017-12-16 00:56:09 -08:00
Manfred Touron	395827afeb	Merge pull request #15 from moul/dev/moul/doc Improve doc	2017-12-16 08:56:48 +01:00
Manfred Touron	8329fd3ab7	Improve doc	2017-12-15 20:27:07 +01:00
Manfred Touron	e32f4200d1	Merge pull request #14 from moul/dev/moul/fix-13 Fix panic when entering empty command	2017-12-15 13:57:41 +01:00
Manfred Touron	7ed60f6908	Fix panic when entering empty command (fix #13 )	2017-12-15 13:55:53 +01:00
Manfred Touron	a413aa86c2	Add sql-schema.svg	2017-12-13 17:23:34 +01:00
Manfred Touron	b51c90a0e9	Update README	2017-12-13 11:52:19 +01:00
Manfred Touron	7245508c76	Add experimental warning	2017-12-12 14:55:50 +01:00
Manfred Touron	905159f044	Update demo gif	2017-12-12 12:26:49 +01:00
Manfred Touron	ac8181474c	Post-release version bump	2017-12-12 10:40:14 +01:00
Manfred Touron	554937dd7a	v1.6.0	2017-12-12 10:39:36 +01:00
Manfred Touron	4aa9a227e8	Switch to a lonely tmux demo	2017-12-12 10:15:09 +01:00
Manfred Touron	6e4cbf5dd8	Add server/client gif example in README	2017-12-12 09:05:49 +01:00
Manfred Touron	44d1ac7f11	Add example gifs	2017-12-12 09:01:33 +01:00
Manfred Touron	1c32da7751	Merge pull request #12 from moul/dev/moul/key-show Add 'key show KEY' command	2017-12-06 00:37:37 +01:00
Manfred Touron	999b740df6	Add 'key show KEY' command (#11 )	2017-12-06 00:33:40 +01:00
Manfred Touron	6864b7ca10	govendor add github.com/mgutz/ansi + its deps	2017-12-06 00:33:40 +01:00
Manfred Touron	546b350a6c	Create LICENSE	2017-12-04 16:45:42 +01:00
Manfred Touron	d70296cd95	Update README.md	2017-12-04 16:33:41 +01:00
Manfred Touron	10f4ad49d9	Improve logging	2017-12-04 11:14:20 +01:00
Manfred Touron	edb230b278	Update README.md	2017-12-04 10:41:25 +01:00
Manfred Touron	efbf66a0a4	Update README.md	2017-12-04 10:39:40 +01:00
Manfred Touron	0746458762	Merge pull request #10 from moul/dev/moul/circle Dev/moul/circle	2017-12-04 10:37:24 +01:00
Manfred Touron	f2738e2bd1	Fix lint warns	2017-12-04 10:32:29 +01:00
Manfred Touron	b0d8180809	Add CircleCI config	2017-12-04 10:21:36 +01:00
Manfred Touron	f9d450ffaf	Add `healthcheck` user	2017-12-04 09:34:52 +01:00
Manfred Touron	391a39d82c	Add `--latest` and `--quiet` options to `ls` commands	2017-12-04 09:27:10 +01:00
Manfred Touron	7eb76c861f	Lint code + fix tests	2017-12-03 18:18:17 +01:00
Manfred Touron	cd437a3a7b	Post-release version bump	2017-12-02 01:12:29 +01:00
Manfred Touron	2accc7abd4	v1.5.0	2017-12-02 01:11:40 +01:00
Manfred Touron	3c10578584	Fix some backup/restore bugs + improve MySQL support	2017-12-02 00:01:31 +01:00
Manfred Touron	511470087b	Host key checking shared across users	2017-12-01 22:19:22 +01:00
Manfred Touron	017ee2ab39	Add MySQL support	2017-11-29 14:07:59 +01:00
Manfred Touron	b093f61fb5	Switch to hard delete	2017-11-29 10:27:04 +01:00
Manfred Touron	bd158819d3	Add 'make dev EXTRA_RUN_OPTS' flag make dev EXTRA_RUN_OPTS="--db-conn=root@/db?parseTime=true --db-driver=mysql"	2017-11-29 10:25:52 +01:00
Manfred Touron	86f6e87efe	Add audit log	2017-11-29 09:17:19 +01:00
Manfred Touron	e377cac8e6	Ignore some errors when logging closed connections	2017-11-28 20:08:31 +01:00
Manfred Touron	0fbcc0dd41	Session management	2017-11-27 08:52:33 +01:00
Manfred Touron	1fdf37dc07	Create Session objects on each connections (history)	2017-11-27 08:22:13 +01:00
Manfred Touron	4cf73e3410	Moved demo code in the README as example	2017-11-27 08:09:22 +01:00
Manfred Touron	328bb0153b	Add session model	2017-11-27 07:43:52 +01:00
Manfred Touron	1ddd6867b6	Post-release version bump	2017-11-24 15:22:50 +01:00
Manfred Touron	2becd5eec2	v1.4.0	2017-11-24 15:22:22 +01:00
Manfred Touron	571b37da6b	Add option to encrypt sensitive data	2017-11-24 15:15:24 +01:00
Manfred Touron	01d464f4c5	Sort items by created_at in 'ls' commands	2017-11-24 07:27:38 +01:00
Manfred Touron	bf184c621d	Merge branch 'dev/moul/timeago' * dev/moul/timeago: Add Updated and Created fields in 'ls' commands govendor add github.com/dustin/go-humanize	2017-11-24 06:48:07 +01:00
Manfred Touron	f4309f843b	Add Updated and Created fields in 'ls' commands	2017-11-24 06:47:39 +01:00
Manfred Touron	cbdc231cbf	govendor add github.com/dustin/go-humanize	2017-11-24 06:46:54 +01:00
Manfred Touron	0f0a8dd9bb	Add 'key setup' command (easy SSH key installation)	2017-11-24 05:04:22 +01:00
Manfred Touron	4189eb8154	Update README.md	2017-11-23 19:06:30 +01:00
Manfred Touron	1d6349767d	Post-commit version bump	2017-11-23 19:04:57 +01:00