v1.7.1

Merge pull request #30 from moul/dev/moul/more-integration-tests
More integration tests
2018-01-03 00:26:38 +01:00 · 2018-01-03 00:25:45 +01:00 · 2018-01-03 00:23:46 +01:00 · 2018-01-03 00:23:46 +01:00 · 2018-01-03 00:23:46 +01:00 · 2018-01-03 00:23:45 +01:00
132 changed files with 11224 additions and 1059 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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+</g>
+<!-- user_group_acls -->
+<g id="node9" class="node">
+<title>user_group_acls</title>
+<polygon fill="#dddddd" stroke="transparent" points="137,-530 137,-550 243,-550 243,-530 137,-530"/>
+<polygon fill="none" stroke="#000000" points="137,-530 137,-550 243,-550 243,-530 137,-530"/>
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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>
+<text text-anchor="start" x="224.3286" y="-516.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="137,-490 137,-510 243,-510 243,-490 137,-490"/>
+<text text-anchor="start" x="162.8975" y="-496.8" font-family="Times,serif" font-size="14.00" fill="#000000">acl_id:</text>
+<text text-anchor="start" x="200.9941" y="-496.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+</g>
+<!-- user_group_acls&#45;&gt;acls -->
+<g id="edge6" class="edge">
+<title>user_group_acls:acl_id&#45;&gt;acls:id</title>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-500C443.7485,-500 494.2019,-544.4853 689.9601,-545.9624"/>
+<polygon fill="#444444" stroke="#444444" points="699.9869,-549.5 690.0001,-545.9624 700.0131,-542.5 699.9869,-549.5"/>
+</g>
+<!-- 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"/>
+<polygon fill="none" stroke="#000000" points="700,-350 700,-370 828,-370 828,-350 700,-350"/>
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+<text text-anchor="start" x="702.5459" y="-296.8" font-family="Times,serif" font-size="14.00" fill="#000000">updated_at:</text>
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+<text text-anchor="start" x="722.8169" y="-256.8" font-family="Times,serif" font-size="14.00" fill="#000000">name:</text>
+<text text-anchor="start" x="757.0239" y="-256.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
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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>
+<path fill="none" stroke="#444444" stroke-dasharray="5,2" d="M243,-520C457.8873,-520 481.0158,-345.5811 689.9107,-340.1305"/>
+<polygon fill="#444444" stroke="#444444" points="700.0453,-343.4997 690.0008,-340.1294 699.9547,-336.5003 700.0453,-343.4997"/>
+</g>
+<!-- user_keys -->
+<g id="node11" class="node">
+<title>user_keys</title>
+<polygon fill="#dddddd" stroke="transparent" points="118,-284 118,-304 262,-304 262,-284 118,-284"/>
+<polygon fill="none" stroke="#000000" points="118,-284 118,-304 262,-304 262,-284 118,-284"/>
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+<polygon fill="none" stroke="#000000" points="118,-264 118,-284 262,-284 262,-264 118,-264"/>
+<text text-anchor="start" x="174.5562" y="-270.8" font-family="Times,serif" font-size="14.00" fill="#000000">id:</text>
+<text text-anchor="start" x="189.3354" y="-270.8" 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="130.501" y="-250.8" font-family="Times,serif" font-size="14.00" fill="#000000">created_at:</text>
+<text text-anchor="start" x="191.9014" y="-250.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
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+<text text-anchor="start" x="128.5459" y="-230.8" font-family="Times,serif" font-size="14.00" fill="#000000">updated_at:</text>
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+<polygon fill="none" stroke="#000000" points="118,-184 118,-204 262,-204 262,-184 118,-184"/>
+<text text-anchor="start" x="149.5083" y="-190.8" font-family="Times,serif" font-size="14.00" fill="#000000">key:</text>
+<text text-anchor="start" x="173.6118" y="-190.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARBINARY</text>
+<polygon fill="none" stroke="#000000" points="118,-164 118,-184 262,-184 262,-164 118,-164"/>
+<text text-anchor="start" x="159.394" y="-170.8" font-family="Times,serif" font-size="14.00" fill="#000000">user_id:</text>
+<text text-anchor="start" x="204.4976" y="-170.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+<polygon fill="none" stroke="#000000" points="118,-144 118,-164 262,-164 262,-144 118,-144"/>
+<text text-anchor="start" x="137.9272" y="-150.8" font-family="Times,serif" font-size="14.00" fill="#000000">comment:</text>
+<text text-anchor="start" x="193.9136" y="-150.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="118,-124 118,-144 262,-144 262,-124 118,-124"/>
+<text text-anchor="start" x="120.8271" y="-130.8" font-family="Times,serif" font-size="14.00" fill="#000000">authorized_key:</text>
+<text text-anchor="start" x="211.0137" y="-130.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+</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"/>
+<polygon fill="none" stroke="#000000" points="700,-184 700,-204 828,-204 828,-184 700,-184"/>
+<text text-anchor="start" x="749.6138" y="-189.8" font-family="Times,serif" font-size="14.00" fill="#000000">users</text>
+<polygon fill="none" stroke="#000000" points="700,-164 700,-184 828,-184 828,-164 700,-164"/>
+<text text-anchor="start" x="748.5562" y="-170.8" font-family="Times,serif" font-size="14.00" fill="#000000">id:</text>
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+<polygon fill="none" stroke="#000000" points="700,-144 700,-164 828,-164 828,-144 700,-144"/>
+<text text-anchor="start" x="704.501" y="-150.8" font-family="Times,serif" font-size="14.00" fill="#000000">created_at:</text>
+<text text-anchor="start" x="765.9014" y="-150.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
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+<text text-anchor="start" x="702.5459" y="-130.8" font-family="Times,serif" font-size="14.00" fill="#000000">updated_at:</text>
+<text text-anchor="start" x="767.8564" y="-130.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TIMESTAMP</text>
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+<text text-anchor="start" x="716.9463" y="-90.8" font-family="Times,serif" font-size="14.00" fill="#000000">is_admin:</text>
+<text text-anchor="start" x="772.167" y="-90.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">TINYINT</text>
+<polygon fill="none" stroke="#000000" points="700,-64 700,-84 828,-84 828,-64 700,-64"/>
+<text text-anchor="start" x="722.4272" y="-70.8" font-family="Times,serif" font-size="14.00" fill="#000000">email:</text>
+<text text-anchor="start" x="757.4136" y="-70.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-44 700,-64 828,-64 828,-44 700,-44"/>
+<text text-anchor="start" x="722.8169" y="-50.8" font-family="Times,serif" font-size="14.00" fill="#000000">name:</text>
+<text text-anchor="start" x="757.0239" y="-50.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-24 700,-44 828,-44 828,-24 700,-24"/>
+<text text-anchor="start" x="711.9272" y="-30.8" font-family="Times,serif" font-size="14.00" fill="#000000">comment:</text>
+<text text-anchor="start" x="767.9136" y="-30.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">VARCHAR</text>
+<polygon fill="none" stroke="#000000" points="700,-4 700,-24 828,-24 828,-4 700,-4"/>
+<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>
+<polygon fill="none" stroke="#000000" points="137,-330 137,-350 243,-350 243,-330 137,-330"/>
+<text text-anchor="start" x="139.563" y="-336.8" font-family="Times,serif" font-size="14.00" fill="#000000">user_group_id:</text>
+<text text-anchor="start" x="224.3286" y="-336.8" font-family="Helvetica,sans-Serif" font-style="oblique" font-size="10.00" fill="#000000">INT</text>
+</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"/>
+<polygon fill="#444444" stroke="#444444" points="700.0466,-177.4997 690.0009,-174.1331 699.9534,-170.5003 700.0466,-177.4997"/>
+</g>
+</g>
+</svg>
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -0,0 +1,40 @@
+defaults: &defaults
+  working_directory: /go/src/github.com/moul/sshportal
+  docker:
+    - image: circleci/golang:1.8
+
+version: 2
+jobs:
+  go.build:
+    <<: *defaults
+    steps:
+      - checkout
+      - run: make install
+      - run: go get -v -t .
+      - run: make test
+      # - run: make integration
+      - run: go get -u github.com/alecthomas/gometalinter
+      - run: gometalinter --install
+      - run: 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
+      - run: docker build -t moul/sshportal .
+      - run: 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/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /sshportal
-*.db
+*.db
+/data
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,61 @@
 # Changelog

-## 1.1.0 (2017-11-15)
+## 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
+* Add 'host update' command (fix [#2](https://github.com/moul/sshportal/issues/2))
+* Add 'user update' command (fix [#3](https://github.com/moul/sshportal/issues/3))
+* Add 'acl update' command (fix [#4](https://github.com/moul/sshportal/issues/4))
+* Allow connecting to the shell mode with the registered username or email (fix [#5](https://github.com/moul/sshportal/issues/5))
+* Add 'listhosts' role (fix [#5](https://github.com/moul/sshportal/issues/5))
+
+## v1.2.0 (2017-11-22)
+
+* Support adding multiple `--group` links on `host create` and `user create`
+* Use govalidator to perform more consistent input validation
+* Use a database migration system
+
+## v1.1.0 (2017-11-15)

 * Improve versionning (static VERSION + dynamic GIT_* info)
 * Configuration management (backup + restore)
@@ -8,7 +63,7 @@
 * Disable mysql support (not fully working right now)
 * Set random seed properly

-## 1.0.0 (2017-11-14)
+## v1.0.0 (2017-11-14)

 Initial version

--- a/5
+++ b/5
@@ -5,6 +5,9 @@ WORKDIR         /go/src/github.com/moul/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/201
+++ b/201
@@ -0,0 +1,201 @@
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+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
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+      replaced with your own identifying information. (Don't include
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+   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
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
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--- a/30
+++ b/30
@@ -1,11 +1,21 @@
 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)
+AES_KEY ?=	my-dummy-aes-key

 .PHONY: install
 install:
-	go install -ldflags '$(LDFLAGS)' .
+	go install -v -ldflags '$(LDFLAGS)' .
+
+.PHONY: docker.build
+docker.build:
+	docker build -t moul/sshportal .
+
+.PHONY: integration
+integration:
+	cd ./examples/integration && make

 .PHONY: _docker_install
 _docker_install:
@@ -14,9 +24,23 @@ _docker_install:
 .PHONY: dev
 dev:
 	-go get github.com/githubnemo/CompileDaemon
-	CompileDaemon -exclude-dir=.git -exclude=".#*" -color=true -command="./sshportal --demo --debug" .
+	CompileDaemon -exclude-dir=.git -exclude=".#*" -color=true -command="./sshportal --debug --bind-address=:$(PORT) --aes-key=$(AES_KEY) $(EXTRA_RUN_OPTS)" .

 .PHONY: test
 test:
 	go test -i .
 	go test -v .
+
+.PHONY: lint
+lint:
+	gometalinter --disable-all --enable=errcheck --enable=vet --enable=vetshadow --enable=golint --enable=gas --enable=ineffassign --enable=goconst --enable=goimports --enable=gofmt --exclude="should have comment" --enable=staticcheck --enable=gosimple --enable=misspell --deadline=20s .
+
+.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 +1,64 @@
 # 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/badge/github.com/moul/sshportal)](https://goreportcard.com/report/github.com/moul/sshportal)
+[![GoDoc](https://godoc.org/github.com/moul/sshportal?status.svg)](https://godoc.org/github.com/moul/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 (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)
+* Host Keys verifications shared across users
+* Healthcheck user (replying OK to any user)
+* 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
+
+## (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 +67,7 @@ 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 +101,18 @@ 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 +124,22 @@ 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.

@@ -139,50 +156,65 @@ You can enter in interactive mode using this syntax: `ssh admin@portal.example.o
 ```sh
 # acl management
 acl help
-acl create [-h] [--hostgroup=<value>...] [--usergroup=<value>...] [--pattern=<value>] [--comment=<value>] [--action=<value>] [--weight=value]
-acl inspect [-h] <id> [<id> [<id>...]]
-acl ls [-h]
-acl rm [-h] <id> [<id> [<id>...]]
+acl create [-h] [--hostgroup=HOSTGROUP...] [--usergroup=USERGROUP...] [--pattern=<value>] [--comment=<value>] [--action=<value>] [--weight=value]
+acl inspect [-h] ACL...
+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=<value>] [--group=<value>] <user>[:<password>]@<host>[:<port>]
-host inspect [-h] <id or name> [<id or name> [<id or name>...]]
-host ls [-h]
-host rm [-h] <id or name> [<id or name> [<id or name>...]]
+host create [-h] [--name=<value>] [--password=<value>] [--comment=<value>] [--key=KEY] [--group=HOSTGROUP...] <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>] [--key=KEY] [--assign-group=HOSTGROUP...] [--unassign-group=HOSTGROUP...] HOST...

 # hostgroup management
 hostgroup help
 hostgroup create [-h] [--name=<value>] [--comment=<value>]
-hostgroup inspect [-h] <id or name> [<id or name> [<id or name>...]]
-hostgroup ls [-h]
-hostgroup rm [-h] <id or name> [<id or name> [<id or name>...]]
+hostgroup inspect [-h] HOSTGROUP...
+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] <id or name> [<id or name> [<id or name>...]]
-key ls [-h]
-key rm [-h] <id or name> [<id or name> [<id or name>...]]
+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=<value>] <email>
-user inspect [-h] <id or email> [<id or email> [<id or email>...]]
-user ls [-h]
-user rm [-h] <id or email> [<id or email> [<id or email>...]]
+user invite [-h] [--name=<value>] [--comment=<value>] [--group=USERGROUP...] <email>
+user inspect [-h] USER...
+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...

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

 # other
 exit [-h]
@@ -193,12 +225,46 @@ version [-h]

 ## Docker

+Docker is the recommended way to run sshportal.
+
 An [automated build is setup on the Docker Hub](https://hub.docker.com/r/moul/sshportal/tags/).

 ```console
 # Start a server in background
 #   mount `pwd` to persist the sqlite database file
-docker run -v "$(pwd):$(pwd)" -w "$(pwd)" moul/sshportal:v1.1.0
+docker run -p 2222:2222 -d --name=sshportal -v "$(pwd):$(pwd)" -w "$(pwd)" moul/sshportal:v1.7.1
+
+# check logs (mandatory on first run to get the administrator invite token)
+docker logs -f sshportal
+```
+
+The easier way to upgrade sshportal is to do the following:
+
+```sh
+# we consider you were using an old version and you want to use the new version v1.7.1
+
+# stop and rename the last working container + backup the database
+docker stop sshportal
+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:v1.7.1
+# check the logs for migration or cross-version incompabitility errors
+docker logs -f sshportal
+```
+
+Now you can test ssh-ing to sshportal to check if everything looks OK.
+
+In case of problem, you can rollback to the latest working version with the latest working backup, using:
+
+```sh
+docker stop sshportal
+docker rm sshportal
+cp sshportal.db.bkp sshportal.db
+docker rename sshportal_old sshportal
+docker start sshportal
+docker logs -f sshportal
 ```

 ## Manual Install
@@ -209,16 +275,39 @@ Get the latest version using GO.
 go get -u github.com/moul/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

 sshportal embeds built-in backup/restore methods which basically import/export JSON objects:

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

 # Restore
-ssh admin@sshportal config restore < sshporta.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).
@@ -232,3 +321,90 @@ 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
@@ -2,7 +2,7 @@ package main

 import "sort"

-type ByWeight []ACL
+type ByWeight []*ACL

 func (a ByWeight) Len() int           { return len(a) }
 func (a ByWeight) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
@@ -10,7 +10,7 @@ func (a ByWeight) Less(i, j int) bool { return a[i].Weight < a[j].Weight }

 func CheckACLs(user User, host Host) (string, error) {
 	// shared ACLs between user and host
-	aclMap := map[uint]ACL{}
+	aclMap := map[uint]*ACL{}
 	for _, userGroup := range user.Groups {
 		for _, userGroupACL := range userGroup.ACLs {
 			for _, hostGroup := range host.Groups {
@@ -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 ACLActionDeny, nil // default action
 	}

-	// transofrm map to slice and sort it
-	acls := []ACL{}
+	// transform map to slice and sort it
+	acls := []*ACL{}
 	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/crypto.go
+++ b/crypto.go
@@ -2,11 +2,15 @@ package main

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

 	gossh "golang.org/x/crypto/ssh"
@@ -47,3 +51,82 @@ func NewSSHKey(keyType string, length uint) (*SSHKey, error) {

 	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) error {
+	if aesKey == "" {
+		return nil
+	}
+	var err error
+	if host.Password != "" {
+		if host.Password, err = encrypt([]byte(aesKey), host.Password); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+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) error {
+	if aesKey == "" {
+		return nil
+	}
+	var err error
+	key.PrivKey, err = encrypt([]byte(aesKey), key.PrivKey)
+	return err
+}
+func SSHKeyDecrypt(aesKey string, key *SSHKey) {
+	if aesKey == "" {
+		return
+	}
+	key.PrivKey = safeDecrypt([]byte(aesKey), key.PrivKey)
+}
--- a/db.go
+++ b/db.go
@@ -1,250 +1,171 @@
 package main

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

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

 type Config struct {
-	SSHKeys    []SSHKey    `json:"keys"`
-	Hosts      []Host      `json:"hosts"`
-	UserKeys   []UserKey   `json:"user_keys"`
-	Users      []User      `json:"users"`
-	UserGroups []UserGroup `json:"user_groups"`
-	HostGroups []HostGroup `json:"host_groups"`
-	ACLs       []ACL       `json:"acls"`
-	Date       time.Time   `json:"date"`
+	SSHKeys    []*SSHKey    `json:"keys"`
+	Hosts      []*Host      `json:"hosts"`
+	UserKeys   []*UserKey   `json:"user_keys"`
+	Users      []*User      `json:"users"`
+	UserGroups []*UserGroup `json:"user_groups"`
+	HostGroups []*HostGroup `json:"host_groups"`
+	ACLs       []*ACL       `json:"acls"`
+	Settings   []*Setting   `json:"settings"`
+	Events     []*Event     `json:"events"`
+	Sessions   []*Session   `json:"sessions"`
+	// FIXME: add latest migration
+	Date time.Time `json:"date"`
 }

+type Setting struct {
+	gorm.Model
+	Name  string `valid:"required"`
+	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
-	Name        string // FIXME: govalidator: min length 3, alphanum
-	Type        string
-	Length      uint
-	Fingerprint string
-	PrivKey     string `sql:"size:10000;"`
-	PubKey      string `sql:"size:10000;"`
-	Hosts       []Host
-	Comment     string
+	Name        string  `valid:"required,length(1|32),unix_user"`
+	Type        string  `valid:"required"`
+	Length      uint    `valid:"required"`
+	Fingerprint string  `valid:"optional"`
+	PrivKey     string  `sql:"size:10000" valid:"required"`
+	PubKey      string  `sql:"size:10000" valid:"optional"`
+	Hosts       []*Host `gorm:"ForeignKey:SSHKeyID"`
+	Comment     string  `valid:"optional"`
 }

 type Host struct {
 	// FIXME: use uuid for ID
 	gorm.Model
-	Name        string `gorm:"size:63"` // FIXME: govalidator: min length 3, alphanum
-	Addr        string
-	User        string
-	Password    string
-	SSHKey      *SSHKey
-	SSHKeyID    uint        `gorm:"index"`
-	Groups      []HostGroup `gorm:"many2many:host_host_groups;"`
-	Fingerprint string      // FIXME: replace with hostkey ?
-	Comment     string
+	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;"`
+	Comment  string       `valid:"optional"`
 }

+// UserKey defines a user public key used by sshportal to identify the user
 type UserKey struct {
 	gorm.Model
-	Key     []byte `sql:"size:10000;"`
-	UserID  uint
-	User    *User
-	Comment string
+	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 {
+	gorm.Model
+	Name  string  `valid:"required,length(1|32),unix_user"`
+	Users []*User `gorm:"many2many:user_user_roles"`
 }

 type User struct {
 	// FIXME: use uuid for ID
 	gorm.Model
-	IsAdmin     bool
-	Email       string // FIXME: govalidator: email
-	Name        string // FIXME: govalidator: min length 3, alphanum
-	Keys        []UserKey
-	Groups      []UserGroup `gorm:"many2many:user_user_groups;"`
-	Comment     string
-	InviteToken string
+	Roles       []*UserRole  `gorm:"many2many:user_user_roles"`
+	Email       string       `valid:"required,email"`
+	Name        string       `valid:"required,length(1|32),unix_user"`
+	Keys        []*UserKey   `gorm:"ForeignKey:UserID"`
+	Groups      []*UserGroup `gorm:"many2many:user_user_groups;"`
+	Comment     string       `valid:"optional"`
+	InviteToken string       `valid:"optional,length(10|60)"`
 }

 type UserGroup struct {
 	gorm.Model
-	Name    string
-	Users   []User `gorm:"many2many:user_user_groups;"`
-	ACLs    []ACL  `gorm:"many2many:user_group_acls;"`
-	Comment string
+	Name    string  `valid:"required,length(1|32),unix_user"`
+	Users   []*User `gorm:"many2many:user_user_groups;"`
+	ACLs    []*ACL  `gorm:"many2many:user_group_acls;"`
+	Comment string  `valid:"optional"`
 }

 type HostGroup struct {
 	gorm.Model
-	Name    string
-	Hosts   []Host `gorm:"many2many:host_host_groups;"`
-	ACLs    []ACL  `gorm:"many2many:host_group_acls;"`
-	Comment string
+	Name    string  `valid:"required,length(1|32),unix_user"`
+	Hosts   []*Host `gorm:"many2many:host_host_groups;"`
+	ACLs    []*ACL  `gorm:"many2many:host_group_acls;"`
+	Comment string  `valid:"optional"`
 }

 type ACL struct {
 	gorm.Model
-	HostGroups  []HostGroup `gorm:"many2many:host_group_acls;"`
-	UserGroups  []UserGroup `gorm:"many2many:user_group_acls;"`
-	HostPattern string
-	Action      string
-	Weight      uint
-	Comment     string
+	HostGroups  []*HostGroup `gorm:"many2many:host_group_acls;"`
+	UserGroups  []*UserGroup `gorm:"many2many:user_group_acls;"`
+	HostPattern string       `valid:"optional"`
+	Action      string       `valid:"required"`
+	Weight      uint         ``
+	Comment     string       `valid:"optional"`
 }

-func dbInit(db *gorm.DB) error {
-	db.AutoMigrate(&User{})
-	db.AutoMigrate(&SSHKey{})
-	db.AutoMigrate(&Host{})
-	db.AutoMigrate(&UserKey{})
-	db.AutoMigrate(&UserGroup{})
-	db.AutoMigrate(&HostGroup{})
-	db.AutoMigrate(&ACL{})
-	// FIXME: check if indexes exist to avoid gorm warns
-	db.Exec(`CREATE UNIQUE INDEX uix_keys_name        ON "ssh_keys"("name")      WHERE ("deleted_at" IS NULL)`)
-	db.Exec(`CREATE UNIQUE INDEX uix_hosts_name       ON "hosts"("name")         WHERE ("deleted_at" IS NULL)`)
-	db.Exec(`CREATE UNIQUE INDEX uix_users_name       ON "users"("email")        WHERE ("deleted_at" IS NULL)`)
-	db.Exec(`CREATE UNIQUE INDEX uix_usergroups_name  ON "user_groups"("name")   WHERE ("deleted_at" IS NULL)`)
-	db.Exec(`CREATE UNIQUE INDEX uix_hostgroups_name  ON "host_groups"("name")   WHERE ("deleted_at" IS NULL)`)
-
-	// create default ssh key
-	var count uint
-	if err := db.Table("ssh_keys").Where("name = ?", "default").Count(&count).Error; err != nil {
-		return err
-	}
-	if count == 0 {
-		key, err := NewSSHKey("rsa", 2048)
-		if err != nil {
-			return err
-		}
-		key.Name = "default"
-		key.Comment = "created by sshportal"
-		if err := db.Create(&key).Error; err != nil {
-			return err
-		}
-	}
-
-	// create default host group
-	if err := db.Table("host_groups").Where("name = ?", "default").Count(&count).Error; err != nil {
-		return err
-	}
-	if count == 0 {
-		hostGroup := HostGroup{
-			Name:    "default",
-			Comment: "created by sshportal",
-		}
-		if err := db.Create(&hostGroup).Error; err != nil {
-			return err
-		}
-	}
-
-	// create default user group
-	if err := db.Table("user_groups").Where("name = ?", "default").Count(&count).Error; err != nil {
-		return err
-	}
-	if count == 0 {
-		userGroup := UserGroup{
-			Name:    "default",
-			Comment: "created by sshportal",
-		}
-		if err := db.Create(&userGroup).Error; err != nil {
-			return err
-		}
-	}
-
-	// create default acl
-	if err := db.Table("acls").Count(&count).Error; err != nil {
-		return err
-	}
-	if count == 0 {
-		var defaultUserGroup UserGroup
-		db.Where("name = ?", "default").First(&defaultUserGroup)
-		var defaultHostGroup HostGroup
-		db.Where("name = ?", "default").First(&defaultHostGroup)
-		acl := ACL{
-			UserGroups: []UserGroup{defaultUserGroup},
-			HostGroups: []HostGroup{defaultHostGroup},
-			Action:     "allow",
-			//HostPattern: "",
-			//Weight:      0,
-			Comment: "created by sshportal",
-		}
-		if err := db.Create(&acl).Error; err != nil {
-			return err
-		}
-	}
-
-	// create admin user
-	var defaultUserGroup UserGroup
-	db.Where("name = ?", "default").First(&defaultUserGroup)
-	db.Table("users").Count(&count)
-	if count == 0 {
-		// if no admin, create an account for the first connection
-		user := User{
-			Name:        "Administrator",
-			Email:       "admin@sshportal",
-			Comment:     "created by sshportal",
-			IsAdmin:     true,
-			InviteToken: RandStringBytes(16),
-			Groups:      []UserGroup{defaultUserGroup},
-		}
-		db.Create(&user)
-		log.Printf("Admin user created, use the user 'invite:%s' to associate a public key with this account", user.InviteToken)
-	}
-
-	// create host ssh key
-	if err := db.Table("ssh_keys").Where("name = ?", "host").Count(&count).Error; err != nil {
-		return err
-	}
-	if count == 0 {
-		key, err := NewSSHKey("rsa", 2048)
-		if err != nil {
-			return err
-		}
-		key.Name = "host"
-		key.Comment = "created by sshportal"
-		if err := db.Create(&key).Error; err != nil {
-			return err
-		}
-	}
-	return nil
+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"`
 }

-func dbDemo(db *gorm.DB) error {
-	hostGroup, err := FindHostGroupByIdOrName(db, "default")
-	if err != nil {
-		return err
-	}
-
-	key, err := FindKeyByIdOrName(db, "default")
-	if 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.Create(&host1)
-	db.Create(&host2)
-	db.Create(&host3)
-	return nil
+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"`
 }

-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
+type SessionStatus string
+
+const (
+	SessionStatusUnknown SessionStatus = "unknown"
+	SessionStatusActive                = "active"
+	SessionStatusClosed                = "closed"
+)
+
+type ACLAction string
+
+const (
+	ACLActionUnknown ACLAction = "unknown"
+	ACLActionAllow             = "allow"
+	ACLActionDeny              = "deny"
+)
+
+func init() {
+	unixUserRegexp := regexp.MustCompile("[a-z_][a-z0-9_-]*")
+
+	govalidator.CustomTypeTagMap.Set("unix_user", govalidator.CustomTypeValidator(func(i interface{}, context interface{}) bool {
+		name, ok := i.(string)
+		if !ok {
+			return false
+		}
+		return unixUserRegexp.MatchString(name)
+	}))
 }

 func (host *Host) URL() string {
@@ -278,147 +199,178 @@ func (host *Host) Hostname() string {

 // Host helpers

-func FindHostByIdOrName(db *gorm.DB, query string) (*Host, error) {
+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
-	if err := db.Preload("Groups").Preload("SSHKey").Where("id = ?", query).Or("name = ?", query).First(&host).Error; err != nil {
-		return nil, err
+	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 FindHostsByIdOrName(db *gorm.DB, queries []string) ([]*Host, error) {
-	var hosts []*Host
-	for _, query := range queries {
-		host, err := FindHostByIdOrName(db, query)
+
+func (host *Host) clientConfig(hk gossh.HostKeyCallback) (*gossh.ClientConfig, error) {
+	config := gossh.ClientConfig{
+		User:            host.User,
+		HostKeyCallback: hk,
+		Auth:            []gossh.AuthMethod{},
+	}
+	if host.SSHKey != nil {
+		signer, err := gossh.ParsePrivateKey([]byte(host.SSHKey.PrivKey))
 		if err != nil {
 			return nil, err
 		}
-		hosts = append(hosts, host)
+		config.Auth = append(config.Auth, gossh.PublicKeys(signer))
 	}
-	return hosts, nil
+	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
 }

 // SSHKey helpers

-func FindKeyByIdOrName(db *gorm.DB, query string) (*SSHKey, error) {
-	var key SSHKey
-	if err := db.Preload("Hosts").Where("id = ?", query).Or("name = ?", query).First(&key).Error; err != nil {
-		return nil, err
-	}
-	return &key, nil
+func SSHKeysPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("Hosts")
 }
-func FindKeysByIdOrName(db *gorm.DB, queries []string) ([]*SSHKey, error) {
-	var keys []*SSHKey
-	for _, query := range queries {
-		key, err := FindKeyByIdOrName(db, query)
-		if err != nil {
-			return nil, err
-		}
-		keys = append(keys, key)
-	}
-	return keys, nil
+func SSHKeysByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers).Or("name IN (?)", identifiers)
 }

 // HostGroup helpers

-func FindHostGroupByIdOrName(db *gorm.DB, query string) (*HostGroup, error) {
-	var hostGroup HostGroup
-	if err := db.Preload("ACLs").Preload("Hosts").Where("id = ?", query).Or("name = ?", query).First(&hostGroup).Error; err != nil {
-		return nil, err
-	}
-	return &hostGroup, nil
+func HostGroupsPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("ACLs").Preload("Hosts")
 }
-func FindHostGroupsByIdOrName(db *gorm.DB, queries []string) ([]*HostGroup, error) {
-	var hostGroups []*HostGroup
-	for _, query := range queries {
-		hostGroup, err := FindHostGroupByIdOrName(db, query)
-		if err != nil {
-			return nil, err
-		}
-		hostGroups = append(hostGroups, hostGroup)
-	}
-	return hostGroups, nil
+func HostGroupsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers).Or("name IN (?)", identifiers)
 }

-// UserGroup heleprs
+// UserGroup helpers

-func FindUserGroupByIdOrName(db *gorm.DB, query string) (*UserGroup, error) {
-	var userGroup UserGroup
-	if err := db.Preload("ACLs").Preload("Users").Where("id = ?", query).Or("name = ?", query).First(&userGroup).Error; err != nil {
-		return nil, err
-	}
-	return &userGroup, nil
+func UserGroupsPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("ACLs").Preload("Users")
 }
-func FindUserGroupsByIdOrName(db *gorm.DB, queries []string) ([]*UserGroup, error) {
-	var userGroups []*UserGroup
-	for _, query := range queries {
-		userGroup, err := FindUserGroupByIdOrName(db, query)
-		if err != nil {
-			return nil, err
-		}
-		userGroups = append(userGroups, userGroup)
-	}
-	return userGroups, nil
+func UserGroupsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers).Or("name IN (?)", identifiers)
 }

 // User helpers

-func FindUserByIdOrEmail(db *gorm.DB, query string) (*User, error) {
-	var user User
-	if err := db.Preload("Groups").Preload("Keys").Where("id = ?", query).Or("email = ?", query).First(&user).Error; err != nil {
-		return nil, err
-	}
-	return &user, nil
+func UsersPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("Groups").Preload("Keys").Preload("Roles")
 }
-func FindUsersByIdOrEmail(db *gorm.DB, queries []string) ([]*User, error) {
-	var users []*User
-	for _, query := range queries {
-		user, err := FindUserByIdOrEmail(db, query)
-		if err != nil {
-			return nil, err
+func UsersByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers).Or("email IN (?)", identifiers).Or("name IN (?)", identifiers)
+}
+func (u *User) HasRole(name string) bool {
+	for _, role := range u.Roles {
+		if role.Name == name {
+			return true
 		}
-		users = append(users, user)
 	}
-	return users, nil
+	return false
+}
+func (u *User) CheckRoles(names []string) error {
+	ok := false
+	for _, name := range names {
+		if u.HasRole(name) {
+			ok = true
+			break
+		}
+	}
+	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 FindACLById(db *gorm.DB, query string) (*ACL, error) {
-	var acl ACL
-	if err := db.Preload("UserGroups").Preload("HostGroups").Where("id = ?", query).First(&acl).Error; err != nil {
-		return nil, err
-	}
-	return &acl, nil
+func ACLsPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("UserGroups").Preload("HostGroups")
 }
-func FindACLsById(db *gorm.DB, queries []string) ([]*ACL, error) {
-	var acls []*ACL
-	for _, query := range queries {
-		acl, err := FindACLById(db, query)
-		if err != nil {
-			return nil, err
-		}
-		acls = append(acls, acl)
-	}
-	return acls, nil
+func ACLsByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers)
 }

 // UserKey helpers

-func FindUserkeyById(db *gorm.DB, query string) (*UserKey, error) {
-	var userkey UserKey
-	if err := db.Preload("User").Where("id = ?", query).First(&userkey).Error; err != nil {
-		return nil, err
-	}
-	return &userkey, nil
+func UserKeysPreload(db *gorm.DB) *gorm.DB {
+	return db.Preload("User")
 }
-func FindUserkeysById(db *gorm.DB, queries []string) ([]*UserKey, error) {
-	var userkeys []*UserKey
-	for _, query := range queries {
-		userkey, err := FindUserkeyById(db, query)
-		if err != nil {
-			return nil, err
+func UserKeysByIdentifiers(db *gorm.DB, identifiers []string) *gorm.DB {
+	return db.Where("id IN (?)", identifiers)
+}
+
+// UserRole helpers
+
+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)
 		}
-		userkeys = append(userkeys, userkey)
 	}
-	return userkeys, nil
+	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
@@ -0,0 +1,588 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"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",
+			Migrate: func(tx *gorm.DB) error {
+				type Setting struct {
+					gorm.Model
+					Name  string
+					Value string
+				}
+				return tx.AutoMigrate(&Setting{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("settings").Error
+			},
+		}, {
+			ID: "2",
+			Migrate: func(tx *gorm.DB) error {
+				type SSHKey struct {
+					// FIXME: use uuid for ID
+					gorm.Model
+					Name        string
+					Type        string
+					Length      uint
+					Fingerprint string
+					PrivKey     string  `sql:"size:10000"`
+					PubKey      string  `sql:"size:10000"`
+					Hosts       []*Host `gorm:"ForeignKey:SSHKeyID"`
+					Comment     string
+				}
+				return tx.AutoMigrate(&SSHKey{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("ssh_keys").Error
+			},
+		}, {
+			ID: "3",
+			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
+					SSHKey      *SSHKey      `gorm:"ForeignKey:SSHKeyID"`
+					SSHKeyID    uint         `gorm:"index"`
+					Groups      []*HostGroup `gorm:"many2many:host_host_groups;"`
+					Fingerprint string
+					Comment     string
+				}
+				return tx.AutoMigrate(&Host{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("hosts").Error
+			},
+		}, {
+			ID: "4",
+			Migrate: func(tx *gorm.DB) error {
+				type UserKey struct {
+					gorm.Model
+					Key     []byte `sql:"size:10000"`
+					UserID  uint   ``
+					User    *User  `gorm:"ForeignKey:UserID"`
+					Comment string
+				}
+				return tx.AutoMigrate(&UserKey{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("user_keys").Error
+			},
+		}, {
+			ID: "5",
+			Migrate: func(tx *gorm.DB) error {
+				type User struct {
+					// FIXME: use uuid for ID
+					gorm.Model
+					IsAdmin     bool
+					Email       string
+					Name        string
+					Keys        []*UserKey   `gorm:"ForeignKey:UserID"`
+					Groups      []*UserGroup `gorm:"many2many:user_user_groups;"`
+					Comment     string
+					InviteToken string
+				}
+				return tx.AutoMigrate(&User{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("users").Error
+			},
+		}, {
+			ID: "6",
+			Migrate: func(tx *gorm.DB) error {
+				type UserGroup struct {
+					gorm.Model
+					Name    string
+					Users   []*User `gorm:"many2many:user_user_groups;"`
+					ACLs    []*ACL  `gorm:"many2many:user_group_acls;"`
+					Comment string
+				}
+				return tx.AutoMigrate(&UserGroup{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("user_groups").Error
+			},
+		}, {
+			ID: "7",
+			Migrate: func(tx *gorm.DB) error {
+				type HostGroup struct {
+					gorm.Model
+					Name    string
+					Hosts   []*Host `gorm:"many2many:host_host_groups;"`
+					ACLs    []*ACL  `gorm:"many2many:host_group_acls;"`
+					Comment string
+				}
+				return tx.AutoMigrate(&HostGroup{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("host_groups").Error
+			},
+		}, {
+			ID: "8",
+			Migrate: func(tx *gorm.DB) error {
+				type ACL struct {
+					gorm.Model
+					HostGroups  []*HostGroup `gorm:"many2many:host_group_acls;"`
+					UserGroups  []*UserGroup `gorm:"many2many:user_group_acls;"`
+					HostPattern string
+					Action      string
+					Weight      uint
+					Comment     string
+				}
+
+				return tx.AutoMigrate(&ACL{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("acls").Error
+			},
+		}, {
+			ID: "9",
+			Migrate: func(tx *gorm.DB) error {
+				db.Model(&Setting{}).RemoveIndex("uix_settings_name")
+				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
+			},
+		}, {
+			ID: "10",
+			Migrate: func(tx *gorm.DB) error {
+				db.Model(&SSHKey{}).RemoveIndex("uix_keys_name")
+				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
+			},
+		}, {
+			ID: "11",
+			Migrate: func(tx *gorm.DB) error {
+				db.Model(&Host{}).RemoveIndex("uix_hosts_name")
+				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
+			},
+		}, {
+			ID: "12",
+			Migrate: func(tx *gorm.DB) error {
+				db.Model(&User{}).RemoveIndex("uix_users_name")
+				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
+			},
+		}, {
+			ID: "13",
+			Migrate: func(tx *gorm.DB) error {
+				db.Model(&UserGroup{}).RemoveIndex("uix_usergroups_name")
+				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
+			},
+		}, {
+			ID: "14",
+			Migrate: func(tx *gorm.DB) error {
+				db.Model(&HostGroup{}).RemoveIndex("uix_hostgroups_name")
+				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
+			},
+		}, {
+			ID: "15",
+			Migrate: func(tx *gorm.DB) error {
+				type UserRole struct {
+					gorm.Model
+					Name  string  `valid:"required,length(1|32),unix_user"`
+					Users []*User `gorm:"many2many:user_user_roles"`
+				}
+				return tx.AutoMigrate(&UserRole{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.DropTable("user_roles").Error
+			},
+		}, {
+			ID: "16",
+			Migrate: func(tx *gorm.DB) error {
+				type User struct {
+					gorm.Model
+					IsAdmin     bool
+					Roles       []*UserRole  `gorm:"many2many:user_user_roles"`
+					Email       string       `valid:"required,email"`
+					Name        string       `valid:"required,length(1|32),unix_user"`
+					Keys        []*UserKey   `gorm:"ForeignKey:UserID"`
+					Groups      []*UserGroup `gorm:"many2many:user_user_groups;"`
+					Comment     string       `valid:"optional"`
+					InviteToken string       `valid:"optional,length(10|60)"`
+				}
+				return tx.AutoMigrate(&User{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "17",
+			Migrate: func(tx *gorm.DB) error {
+				return tx.Create(&UserRole{Name: "admin"}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return tx.Where("name = ?", "admin").Delete(&UserRole{}).Error
+			},
+		}, {
+			ID: "18",
+			Migrate: func(tx *gorm.DB) error {
+				var adminRole UserRole
+				if err := db.Where("name = ?", "admin").First(&adminRole).Error; err != nil {
+					return err
+				}
+
+				var users []User
+				if err := db.Preload("Roles").Where("is_admin = ?", true).Find(&users).Error; err != nil {
+					return err
+				}
+
+				for _, user := range users {
+					user.Roles = append(user.Roles, &adminRole)
+					if err := tx.Save(&user).Error; err != nil {
+						return err
+					}
+				}
+				return nil
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "19",
+			Migrate: func(tx *gorm.DB) error {
+				type User struct {
+					gorm.Model
+					Roles       []*UserRole  `gorm:"many2many:user_user_roles"`
+					Email       string       `valid:"required,email"`
+					Name        string       `valid:"required,length(1|32),unix_user"`
+					Keys        []*UserKey   `gorm:"ForeignKey:UserID"`
+					Groups      []*UserGroup `gorm:"many2many:user_user_groups;"`
+					Comment     string       `valid:"optional"`
+					InviteToken string       `valid:"optional,length(10|60)"`
+				}
+				return tx.AutoMigrate(&User{}).Error
+			},
+			Rollback: func(tx *gorm.DB) error {
+				return fmt.Errorf("not implemented")
+			},
+		}, {
+			ID: "20",
+			Migrate: func(tx *gorm.DB) error {
+				return tx.Create(&UserRole{Name: "listhosts"}).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")
+			},
+		},
+	})
+	if err := m.Migrate(); err != nil {
+		return err
+	}
+	NewEvent("system", "migrated").Log(db)
+
+	// create default ssh key
+	var count uint
+	if err := db.Table("ssh_keys").Where("name = ?", "default").Count(&count).Error; err != nil {
+		return err
+	}
+	if count == 0 {
+		key, err := NewSSHKey("rsa", 2048)
+		if err != nil {
+			return err
+		}
+		key.Name = "default"
+		key.Comment = "created by sshportal"
+		if err := db.Create(&key).Error; err != nil {
+			return err
+		}
+	}
+
+	// create default host group
+	if err := db.Table("host_groups").Where("name = ?", "default").Count(&count).Error; err != nil {
+		return err
+	}
+	if count == 0 {
+		hostGroup := HostGroup{
+			Name:    "default",
+			Comment: "created by sshportal",
+		}
+		if err := db.Create(&hostGroup).Error; err != nil {
+			return err
+		}
+	}
+
+	// create default user group
+	if err := db.Table("user_groups").Where("name = ?", "default").Count(&count).Error; err != nil {
+		return err
+	}
+	if count == 0 {
+		userGroup := UserGroup{
+			Name:    "default",
+			Comment: "created by sshportal",
+		}
+		if err := db.Create(&userGroup).Error; err != nil {
+			return err
+		}
+	}
+
+	// create default acl
+	if err := db.Table("acls").Count(&count).Error; err != nil {
+		return err
+	}
+	if count == 0 {
+		var defaultUserGroup UserGroup
+		db.Where("name = ?", "default").First(&defaultUserGroup)
+		var defaultHostGroup HostGroup
+		db.Where("name = ?", "default").First(&defaultHostGroup)
+		acl := ACL{
+			UserGroups: []*UserGroup{&defaultUserGroup},
+			HostGroups: []*HostGroup{&defaultHostGroup},
+			Action:     "allow",
+			//HostPattern: "",
+			//Weight:      0,
+			Comment: "created by sshportal",
+		}
+		if err := db.Create(&acl).Error; err != nil {
+			return err
+		}
+	}
+
+	// create admin user
+	var defaultUserGroup UserGroup
+	db.Where("name = ?", "default").First(&defaultUserGroup)
+	db.Table("users").Count(&count)
+	if count == 0 {
+		// if no admin, create an account for the first connection
+		inviteToken := randStringBytes(16)
+		if os.Getenv("SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN") != "" {
+			inviteToken = os.Getenv("SSHPORTAL_DEFAULT_ADMIN_INVITE_TOKEN")
+		}
+		var adminRole UserRole
+		if err := db.Where("name = ?", "admin").First(&adminRole).Error; err != nil {
+			return err
+		}
+		user := User{
+			Name:        "admin",
+			Email:       "admin@sshportal",
+			Comment:     "created by sshportal",
+			Roles:       []*UserRole{&adminRole},
+			InviteToken: inviteToken,
+			Groups:      []*UserGroup{&defaultUserGroup},
+		}
+		if err := db.Create(&user).Error; err != nil {
+			return err
+		}
+		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
+	if err := db.Table("ssh_keys").Where("name = ?", "host").Count(&count).Error; err != nil {
+		return err
+	}
+	if count == 0 {
+		key, err := NewSSHKey("rsa", 2048)
+		if err != nil {
+			return err
+		}
+		key.Name = "host"
+		key.Comment = "created by sshportal"
+		if err := db.Create(&key).Error; err != nil {
+			return err
+		}
+	}
+
+	// close unclosed connections
+	if err := db.Table("sessions").Where("status = ?", "active").Updates(&Session{
+		Status: SessionStatusClosed,
+		ErrMsg: "sshportal was halted while the connection was still active",
+	}).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+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()
+	}
+}
+
+func addExtraSpaceIfExist(str string) string {
+	if str != "" {
+		return " " + str
+	}
+	return ""
+}
--- 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 +1,71 @@
+#!/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 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
+)
+
+# 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"]}'
+
+# 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-----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+-----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/mysql/docker-compose.yml
+++ b/examples/mysql/docker-compose.yml
@@ -9,7 +9,7 @@ services:
        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 --db-driver=mysql --debug --db-conn="root:root@tcp(mysql:3306)/db?charset=utf8&parseTime=true&loc=Local"
    ports:
      - 2222:2222

--- a/main.go
+++ b/main.go
@@ -1,40 +1,39 @@
 package main

 import (
-	"errors"
+	"bytes"
+	"encoding/json"
 	"fmt"
+	"io"
 	"log"
 	"math/rand"
+	"net"
 	"os"
+	"os/exec"
 	"path"
 	"strings"
+	"syscall"
 	"time"
+	"unsafe"

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

 var (
-	// VERSION should be updated by hand at each release
-	VERSION = "1.1.0"
-	// 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 = "1.7.1"
+	// 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() {
@@ -43,190 +42,109 @@ func main() {
 	app := cli.NewApp()
 	app.Name = path.Base(os.Args[0])
 	app.Author = "Manfred Touron"
-	app.Version = VERSION + " (" + GIT_SHA + ")"
+	app.Version = Version + " (" + GitSha + ")"
 	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.Commands = []cli.Command{
+		{
+			Name:   "server",
+			Usage:  "Start sshportal server",
+			Action: server,
+			Flags: []cli.Flag{
+				cli.StringFlag{
+					Name:   "bind-address, b",
+					EnvVar: "SSHPORTAL_BIND",
+					Value:  ":2222",
+					Usage:  "SSH server bind address",
+				},
+				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:  "aes-key",
+					Usage: "Encrypt sensitive data in database (length: 16, 24 or 32)",
+				},
+			},
+		}, {
+			Name:   "healthcheck",
+			Action: healthcheck,
+			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, err := gorm.Open("sqlite3", c.String("db-conn"))
+	switch len(c.String("aes-key")) {
+	case 0, 16, 24, 32:
+	default:
+		return fmt.Errorf("invalid aes key size, should be 16 or 24, 32")
+	}
+	// db
+	db, err := gorm.Open(c.String("db-driver"), c.String("db-conn"))
 	if err != nil {
 		return err
 	}
-	defer db.Close()
-
+	defer func() {
+		if err2 := db.Close(); err2 != nil {
+			panic(err2)
+		}
+	}()
+	if err = db.DB().Ping(); err != nil {
+		return err
+	}
 	if c.Bool("debug") {
 		db.LogMode(true)
 	}
-	if err := dbInit(db); err != nil {
+	if err = dbInit(db); err != nil {
 		return err
 	}

-	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 == c.String("config-user"):
-			if !currentUser.IsAdmin {
-				fmt.Fprintf(s, "You are not an administrator, permission denied.\n")
-				return
-			}
-			if err := shell(c, s, s.Command(), db); err != nil {
-				fmt.Fprintf(s, "error: %v\n", err)
-			}
-		case strings.HasPrefix(username, "invite:"):
-			return
-		default:
-			host, err := RemoteHostFromSession(s, db)
-			if err != nil {
-				fmt.Fprintf(s, "error: %v\n", err)
-				// FIXME: print available hosts
-				return
-			}
-
-			// 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)
-			}
-
-		}
-	})
-
 	opts := []ssh.Option{}
-	if c.Bool("demo") {
-		if c.Bool("demo") {
-			if err := dbDemo(db); err != nil {
-				return err
-			}
-		}
-	}
-
-	opts = append(opts, ssh.PublicKeyAuth(func(ctx ssh.Context, key ssh.PublicKey) bool {
-		var (
-			userKey  UserKey
-			user     User
-			username = ctx.User()
-		)
-
-		// lookup user by key
-		db.Where("key = ?", key.Marshal()).First(&userKey)
-		if userKey.UserID > 0 {
-			db.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) == 16 {
-				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
-	}))
+	// custom PublicKeyAuth handler
+	opts = append(opts, ssh.PublicKeyAuth(publicKeyAuthHandler(db, c)))
+	opts = append(opts, ssh.PasswordAuth(passwordAuthHandler(db, c)))

+	// retrieve sshportal SSH private key from databse
 	opts = append(opts, func(srv *ssh.Server) error {
-		key, err := FindKeyByIdOrName(db, "host")
-		if err != nil {
+		var key SSHKey
+		if err = SSHKeysByIdentifiers(db, []string{"host"}).First(&key).Error; err != nil {
 			return err
 		}
-		signer, err := gossh.ParsePrivateKey([]byte(key.PrivKey))
+		SSHKeyDecrypt(c.String("aes-key"), &key)
+
+		var signer gossh.Signer
+		signer, err = gossh.ParsePrivateKey([]byte(key.PrivKey))
 		if err != nil {
 			return err
 		}
@@ -234,6 +152,150 @@ func server(c *cli.Context) error {
 		return nil
 	})

-	log.Printf("SSH Server accepting connections on %s", c.String("bind-address"))
-	return ssh.ListenAndServe(c.String("bind-address"), nil, opts...)
+	// create TCP listening socket
+	ln, err := net.Listen("tcp", c.String("bind-address"))
+	if err != nil {
+		return err
+	}
+
+	// configure server
+	srv := &ssh.Server{
+		Addr:           c.String("bind-address"),
+		Handler:        shellHandler, // ssh.Server.Handler is the handler for the DefaultSessionHandler
+		Version:        fmt.Sprintf("sshportal-%s", Version),
+		ChannelHandler: channelHandler,
+	}
+	for _, opt := range opts {
+		if err := srv.SetOption(opt); err != nil {
+			return err
+		}
+	}
+
+	log.Printf("info: SSH Server accepting connections on %s", c.String("bind-address"))
+	return srv.Serve(ln)
+}
+
+// perform a healthcheck test without requiring an ssh client or an ssh key (used for Docker's HEALTHCHECK)
+func healthcheck(c *cli.Context) error {
+	config := gossh.ClientConfig{
+		User:            "healthcheck",
+		HostKeyCallback: func(hostname string, remote net.Addr, key gossh.PublicKey) error { return nil },
+		Auth:            []gossh.AuthMethod{gossh.Password("healthcheck")},
+	}
+
+	if c.Bool("wait") {
+		for {
+			if err := healthcheckOnce(c.String("addr"), config, c.Bool("quiet")); err != nil {
+				if !c.Bool("quiet") {
+					log.Printf("error: %v", err)
+				}
+				time.Sleep(time.Second)
+				continue
+			}
+			return nil
+		}
+	}
+
+	if err := healthcheckOnce(c.String("addr"), config, c.Bool("quiet")); err != nil {
+		if c.Bool("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
+}
+
+// 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(),
+		}
+		enc := json.NewEncoder(s)
+		if err := enc.Encode(&helloMsg); err != nil {
+			log.Fatalf("failed to write helloMsg: %v", err)
+		}
+		var cmd *exec.Cmd
+		if s.Command() == nil {
+			cmd = exec.Command("/bin/sh") // #nosec
+		} else {
+			cmd = exec.Command(s.Command()[0], s.Command()[1:]...) // #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)
+				_ = s.Exit(1)
+				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() {
+				_, _ = io.Copy(f, s) // stdin
+			}()
+			_, _ = io.Copy(s, f) // stdout
+			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 {
+				waitStatus := exitError.Sys().(syscall.WaitStatus)
+				_ = s.Exit(waitStatus.ExitStatus())
+				return
+			}
+		}
+		waitStatus := cmd.ProcessState.Sys().(syscall.WaitStatus)
+		_ = s.Exit(waitStatus.ExitStatus())
+	})
+
+	log.Println("starting ssh server on port 2222...")
+	return ssh.ListenAndServe(":2222", nil)
 }
--- a/pkg/bastionsession/bastionsession.go
+++ b/pkg/bastionsession/bastionsession.go
@@ -1,40 +1,49 @@
-package main
+package bastionsession

 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)
+type Config struct {
+	Addr         string
+	ClientConfig *gossh.ClientConfig
+}
+
+func ChannelHandler(srv *ssh.Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx ssh.Context, config Config) error {
+	if newChan.ChannelType() != "session" {
+		newChan.Reject(gossh.UnknownChannelType, "unsupported channel type")
+		return nil
+	}
+	lch, lreqs, err := newChan.Accept()
+	// TODO: defer clean closer
+	if err != nil {
+		// TODO: trigger event callback
+		return nil
+	}
+
+	// open client channel
+	rconn, err := gossh.Dial("tcp", config.Addr, config.ClientConfig)
 	if err != nil {
 		return err
 	}
-
-	rconn, err := gossh.Dial("tcp", host.Addr, config)
-	if err != nil {
-		return err
-	}
-	defer rconn.Close()
-
+	defer func() { _ = 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)
+	// pipe everything
+	return pipe(lreqs, rreqs, lch, rch)
 }

 func pipe(lreqs, rreqs <-chan *gossh.Request, lch, rch gossh.Channel) error {
 	defer func() {
-		lch.Close()
-		rch.Close()
+		_ = lch.Close()
+		_ = rch.Close()
 	}()

 	errch := make(chan error, 1)
@@ -59,7 +68,9 @@ func pipe(lreqs, rreqs <-chan *gossh.Request, lch, rch gossh.Channel) error {
 			if err != nil {
 				return err
 			}
-			req.Reply(b, nil)
+			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
@@ -68,32 +79,11 @@ func pipe(lreqs, rreqs <-chan *gossh.Request, lch, rch gossh.Channel) error {
 			if err != nil {
 				return err
 			}
-			req.Reply(b, nil)
+			if err2 := req.Reply(b, nil); err2 != nil {
+				return err2
+			}
 		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/shell.go
+++ b/shell.go
--- a/ssh.go
+++ b/ssh.go
@@ -0,0 +1,290 @@
+package main
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"log"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/gliderlabs/ssh"
+	"github.com/jinzhu/gorm"
+	"github.com/moul/sshportal/pkg/bastionsession"
+	"github.com/urfave/cli"
+	gossh "golang.org/x/crypto/ssh"
+)
+
+type sshportalContextKey string
+
+var authContextKey = sshportalContextKey("auth")
+
+type authContext struct {
+	message       string
+	err           error
+	user          User
+	inputUsername string
+	db            *gorm.DB
+	userKey       UserKey
+	globalContext *cli.Context
+	authMethod    string
+	authSuccess   bool
+}
+
+type UserType string
+
+const (
+	UserTypeHealthcheck UserType = "healthcheck"
+	UserTypeBastion              = "bastion"
+	UserTypeInvite               = "invite"
+	UserTypeShell                = "shell"
+)
+
+type SessionType string
+
+const (
+	SessionTypeBastion SessionType = "bastion"
+	SessionTypeShell               = "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 (c authContext) sessionType() SessionType {
+	switch c.userType() {
+	case "bastion":
+		return SessionTypeBastion
+	default:
+		return SessionTypeShell
+	}
+}
+
+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":
+	default:
+		// TODO: handle direct-tcp
+		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, clientConfig, err := bastionConfig(ctx)
+		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
+		}
+
+		sess := Session{
+			UserID: actx.user.ID,
+			HostID: host.ID,
+			Status: 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
+		}
+
+		err = bastionsession.ChannelHandler(srv, conn, newChan, ctx, bastionsession.Config{
+			Addr:         host.Addr,
+			ClientConfig: clientConfig,
+		})
+
+		now := time.Now()
+		sessUpdate := Session{
+			Status:    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)
+	default: // shell
+		ssh.DefaultChannelHandler(srv, conn, newChan, ctx)
+	}
+}
+
+func bastionConfig(ctx ssh.Context) (*Host, *gossh.ClientConfig, error) {
+	actx := ctx.Value(authContextKey).(*authContext)
+
+	host, err := HostByName(actx.db, actx.inputUsername)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	clientConfig, err := host.clientConfig(dynamicHostKey(actx.db, host))
+	if err != nil {
+		return nil, 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, 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, nil, err
+	}
+	action, err2 := CheckACLs(tmpUser, tmpHost)
+	if err2 != nil {
+		return nil, nil, err2
+	}
+
+	HostDecrypt(actx.globalContext.String("aes-key"), host)
+	SSHKeyDecrypt(actx.globalContext.String("aes-key"), host.SSHKey)
+
+	switch action {
+	case ACLActionAllow:
+	case ACLActionDeny:
+		return nil, nil, fmt.Errorf("you don't have permission to that host")
+	default:
+		return nil, nil, fmt.Errorf("invalid ACL action: %q", action)
+	}
+	return host, 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, globalContext *cli.Context) ssh.PasswordHandler {
+	return func(ctx ssh.Context, pass string) bool {
+		actx := &authContext{
+			db:            db,
+			inputUsername: ctx.User(),
+			globalContext: globalContext,
+			authMethod:    "password",
+		}
+		actx.authSuccess = actx.userType() == UserTypeHealthcheck
+		ctx.SetValue(authContextKey, actx)
+		return actx.authSuccess
+	}
+}
+
+func publicKeyAuthHandler(db *gorm.DB, globalContext *cli.Context) ssh.PublicKeyHandler {
+	return func(ctx ssh.Context, key ssh.PublicKey) bool {
+		actx := &authContext{
+			db:            db,
+			inputUsername: ctx.User(),
+			globalContext: globalContext,
+			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/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/asaskevich/govalidator/LICENSE
+++ b/vendor/github.com/asaskevich/govalidator/LICENSE
@@ -0,0 +1,21 @@
+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
@@ -0,0 +1,410 @@
+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
@@ -0,0 +1,58 @@
+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
@@ -0,0 +1,49 @@
+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
@@ -0,0 +1,31 @@
+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
@@ -0,0 +1,57 @@
+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
@@ -0,0 +1,91 @@
+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
@@ -0,0 +1,385 @@
+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
@@ -0,0 +1,268 @@
+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
@@ -0,0 +1,15 @@
+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/dustin/go-humanize/LICENSE
+++ b/vendor/github.com/dustin/go-humanize/LICENSE
@@ -0,0 +1,21 @@
+Copyright (c) 2005-2008  Dustin Sallings <dustin@spy.net>
+
+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.
+
+<http://www.opensource.org/licenses/mit-license.php>
--- a/vendor/github.com/dustin/go-humanize/README.markdown
+++ b/vendor/github.com/dustin/go-humanize/README.markdown
@@ -0,0 +1,92 @@
+# Humane Units [![Build Status](https://travis-ci.org/dustin/go-humanize.svg?branch=master)](https://travis-ci.org/dustin/go-humanize) [![GoDoc](https://godoc.org/github.com/dustin/go-humanize?status.svg)](https://godoc.org/github.com/dustin/go-humanize)
+
+Just a few functions for helping humanize times and sizes.
+
+`go get` it as `github.com/dustin/go-humanize`, import it as
+`"github.com/dustin/go-humanize"`, use it as `humanize`
+
+See [godoc](https://godoc.org/github.com/dustin/go-humanize) for
+complete documentation.
+
+## Sizes
+
+This lets you take numbers like `82854982` and convert them to useful
+strings like, `83MB` or `79MiB` (whichever you prefer).
+
+Example:
+
+```go
+fmt.Printf("That file is %s.", humanize.Bytes(82854982))
+```
+
+## Times
+
+This lets you take a `time.Time` and spit it out in relative terms.
+For example, `12 seconds ago` or `3 days from now`.
+
+Example:
+
+```go
+fmt.Printf("This was touched %s", humanize.Time(someTimeInstance))
+```
+
+Thanks to Kyle Lemons for the time implementation from an IRC
+conversation one day.  It's pretty neat.
+
+## Ordinals
+
+From a [mailing list discussion][odisc] where a user wanted to be able
+to label ordinals.
+
+    0 -> 0th
+    1 -> 1st
+    2 -> 2nd
+    3 -> 3rd
+    4 -> 4th
+    [...]
+
+Example:
+
+```go
+fmt.Printf("You're my %s best friend.", humanize.Ordinal(193))
+```
+
+## Commas
+
+Want to shove commas into numbers?  Be my guest.
+
+    0 -> 0
+    100 -> 100
+    1000 -> 1,000
+    1000000000 -> 1,000,000,000
+    -100000 -> -100,000
+
+Example:
+
+```go
+fmt.Printf("You owe $%s.\n", humanize.Comma(6582491))
+```
+
+## Ftoa
+
+Nicer float64 formatter that removes trailing zeros.
+
+```go
+fmt.Printf("%f", 2.24)                   // 2.240000
+fmt.Printf("%s", humanize.Ftoa(2.24))    // 2.24
+fmt.Printf("%f", 2.0)                    // 2.000000
+fmt.Printf("%s", humanize.Ftoa(2.0))     // 2
+```
+
+## SI notation
+
+Format numbers with [SI notation][sinotation].
+
+Example:
+
+```go
+humanize.SI(0.00000000223, "M")    // 2.23nM
+```
+
+[odisc]: https://groups.google.com/d/topic/golang-nuts/l8NhI74jl-4/discussion
+[sinotation]: http://en.wikipedia.org/wiki/Metric_prefix
--- a/vendor/github.com/dustin/go-humanize/big.go
+++ b/vendor/github.com/dustin/go-humanize/big.go
@@ -0,0 +1,31 @@
+package humanize
+
+import (
+	"math/big"
+)
+
+// order of magnitude (to a max order)
+func oomm(n, b *big.Int, maxmag int) (float64, int) {
+	mag := 0
+	m := &big.Int{}
+	for n.Cmp(b) >= 0 {
+		n.DivMod(n, b, m)
+		mag++
+		if mag == maxmag && maxmag >= 0 {
+			break
+		}
+	}
+	return float64(n.Int64()) + (float64(m.Int64()) / float64(b.Int64())), mag
+}
+
+// total order of magnitude
+// (same as above, but with no upper limit)
+func oom(n, b *big.Int) (float64, int) {
+	mag := 0
+	m := &big.Int{}
+	for n.Cmp(b) >= 0 {
+		n.DivMod(n, b, m)
+		mag++
+	}
+	return float64(n.Int64()) + (float64(m.Int64()) / float64(b.Int64())), mag
+}
--- a/vendor/github.com/dustin/go-humanize/bigbytes.go
+++ b/vendor/github.com/dustin/go-humanize/bigbytes.go
@@ -0,0 +1,173 @@
+package humanize
+
+import (
+	"fmt"
+	"math/big"
+	"strings"
+	"unicode"
+)
+
+var (
+	bigIECExp = big.NewInt(1024)
+
+	// BigByte is one byte in bit.Ints
+	BigByte = big.NewInt(1)
+	// BigKiByte is 1,024 bytes in bit.Ints
+	BigKiByte = (&big.Int{}).Mul(BigByte, bigIECExp)
+	// BigMiByte is 1,024 k bytes in bit.Ints
+	BigMiByte = (&big.Int{}).Mul(BigKiByte, bigIECExp)
+	// BigGiByte is 1,024 m bytes in bit.Ints
+	BigGiByte = (&big.Int{}).Mul(BigMiByte, bigIECExp)
+	// BigTiByte is 1,024 g bytes in bit.Ints
+	BigTiByte = (&big.Int{}).Mul(BigGiByte, bigIECExp)
+	// BigPiByte is 1,024 t bytes in bit.Ints
+	BigPiByte = (&big.Int{}).Mul(BigTiByte, bigIECExp)
+	// BigEiByte is 1,024 p bytes in bit.Ints
+	BigEiByte = (&big.Int{}).Mul(BigPiByte, bigIECExp)
+	// BigZiByte is 1,024 e bytes in bit.Ints
+	BigZiByte = (&big.Int{}).Mul(BigEiByte, bigIECExp)
+	// BigYiByte is 1,024 z bytes in bit.Ints
+	BigYiByte = (&big.Int{}).Mul(BigZiByte, bigIECExp)
+)
+
+var (
+	bigSIExp = big.NewInt(1000)
+
+	// BigSIByte is one SI byte in big.Ints
+	BigSIByte = big.NewInt(1)
+	// BigKByte is 1,000 SI bytes in big.Ints
+	BigKByte = (&big.Int{}).Mul(BigSIByte, bigSIExp)
+	// BigMByte is 1,000 SI k bytes in big.Ints
+	BigMByte = (&big.Int{}).Mul(BigKByte, bigSIExp)
+	// BigGByte is 1,000 SI m bytes in big.Ints
+	BigGByte = (&big.Int{}).Mul(BigMByte, bigSIExp)
+	// BigTByte is 1,000 SI g bytes in big.Ints
+	BigTByte = (&big.Int{}).Mul(BigGByte, bigSIExp)
+	// BigPByte is 1,000 SI t bytes in big.Ints
+	BigPByte = (&big.Int{}).Mul(BigTByte, bigSIExp)
+	// BigEByte is 1,000 SI p bytes in big.Ints
+	BigEByte = (&big.Int{}).Mul(BigPByte, bigSIExp)
+	// BigZByte is 1,000 SI e bytes in big.Ints
+	BigZByte = (&big.Int{}).Mul(BigEByte, bigSIExp)
+	// BigYByte is 1,000 SI z bytes in big.Ints
+	BigYByte = (&big.Int{}).Mul(BigZByte, bigSIExp)
+)
+
+var bigBytesSizeTable = map[string]*big.Int{
+	"b":   BigByte,
+	"kib": BigKiByte,
+	"kb":  BigKByte,
+	"mib": BigMiByte,
+	"mb":  BigMByte,
+	"gib": BigGiByte,
+	"gb":  BigGByte,
+	"tib": BigTiByte,
+	"tb":  BigTByte,
+	"pib": BigPiByte,
+	"pb":  BigPByte,
+	"eib": BigEiByte,
+	"eb":  BigEByte,
+	"zib": BigZiByte,
+	"zb":  BigZByte,
+	"yib": BigYiByte,
+	"yb":  BigYByte,
+	// Without suffix
+	"":   BigByte,
+	"ki": BigKiByte,
+	"k":  BigKByte,
+	"mi": BigMiByte,
+	"m":  BigMByte,
+	"gi": BigGiByte,
+	"g":  BigGByte,
+	"ti": BigTiByte,
+	"t":  BigTByte,
+	"pi": BigPiByte,
+	"p":  BigPByte,
+	"ei": BigEiByte,
+	"e":  BigEByte,
+	"z":  BigZByte,
+	"zi": BigZiByte,
+	"y":  BigYByte,
+	"yi": BigYiByte,
+}
+
+var ten = big.NewInt(10)
+
+func humanateBigBytes(s, base *big.Int, sizes []string) string {
+	if s.Cmp(ten) < 0 {
+		return fmt.Sprintf("%d B", s)
+	}
+	c := (&big.Int{}).Set(s)
+	val, mag := oomm(c, base, len(sizes)-1)
+	suffix := sizes[mag]
+	f := "%.0f %s"
+	if val < 10 {
+		f = "%.1f %s"
+	}
+
+	return fmt.Sprintf(f, val, suffix)
+
+}
+
+// BigBytes produces a human readable representation of an SI size.
+//
+// See also: ParseBigBytes.
+//
+// BigBytes(82854982) -> 83MB
+func BigBytes(s *big.Int) string {
+	sizes := []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"}
+	return humanateBigBytes(s, bigSIExp, sizes)
+}
+
+// BigIBytes produces a human readable representation of an IEC size.
+//
+// See also: ParseBigBytes.
+//
+// BigIBytes(82854982) -> 79MiB
+func BigIBytes(s *big.Int) string {
+	sizes := []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"}
+	return humanateBigBytes(s, bigIECExp, sizes)
+}
+
+// ParseBigBytes parses a string representation of bytes into the number
+// of bytes it represents.
+//
+// See also: BigBytes, BigIBytes.
+//
+// ParseBigBytes("42MB") -> 42000000, nil
+// ParseBigBytes("42mib") -> 44040192, nil
+func ParseBigBytes(s string) (*big.Int, error) {
+	lastDigit := 0
+	hasComma := false
+	for _, r := range s {
+		if !(unicode.IsDigit(r) || r == '.' || r == ',') {
+			break
+		}
+		if r == ',' {
+			hasComma = true
+		}
+		lastDigit++
+	}
+
+	num := s[:lastDigit]
+	if hasComma {
+		num = strings.Replace(num, ",", "", -1)
+	}
+
+	val := &big.Rat{}
+	_, err := fmt.Sscanf(num, "%f", val)
+	if err != nil {
+		return nil, err
+	}
+
+	extra := strings.ToLower(strings.TrimSpace(s[lastDigit:]))
+	if m, ok := bigBytesSizeTable[extra]; ok {
+		mv := (&big.Rat{}).SetInt(m)
+		val.Mul(val, mv)
+		rv := &big.Int{}
+		rv.Div(val.Num(), val.Denom())
+		return rv, nil
+	}
+
+	return nil, fmt.Errorf("unhandled size name: %v", extra)
+}
--- a/vendor/github.com/dustin/go-humanize/bytes.go
+++ b/vendor/github.com/dustin/go-humanize/bytes.go
@@ -0,0 +1,143 @@
+package humanize
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"unicode"
+)
+
+// IEC Sizes.
+// kibis of bits
+const (
+	Byte = 1 << (iota * 10)
+	KiByte
+	MiByte
+	GiByte
+	TiByte
+	PiByte
+	EiByte
+)
+
+// SI Sizes.
+const (
+	IByte = 1
+	KByte = IByte * 1000
+	MByte = KByte * 1000
+	GByte = MByte * 1000
+	TByte = GByte * 1000
+	PByte = TByte * 1000
+	EByte = PByte * 1000
+)
+
+var bytesSizeTable = map[string]uint64{
+	"b":   Byte,
+	"kib": KiByte,
+	"kb":  KByte,
+	"mib": MiByte,
+	"mb":  MByte,
+	"gib": GiByte,
+	"gb":  GByte,
+	"tib": TiByte,
+	"tb":  TByte,
+	"pib": PiByte,
+	"pb":  PByte,
+	"eib": EiByte,
+	"eb":  EByte,
+	// Without suffix
+	"":   Byte,
+	"ki": KiByte,
+	"k":  KByte,
+	"mi": MiByte,
+	"m":  MByte,
+	"gi": GiByte,
+	"g":  GByte,
+	"ti": TiByte,
+	"t":  TByte,
+	"pi": PiByte,
+	"p":  PByte,
+	"ei": EiByte,
+	"e":  EByte,
+}
+
+func logn(n, b float64) float64 {
+	return math.Log(n) / math.Log(b)
+}
+
+func humanateBytes(s uint64, base float64, sizes []string) string {
+	if s < 10 {
+		return fmt.Sprintf("%d B", s)
+	}
+	e := math.Floor(logn(float64(s), base))
+	suffix := sizes[int(e)]
+	val := math.Floor(float64(s)/math.Pow(base, e)*10+0.5) / 10
+	f := "%.0f %s"
+	if val < 10 {
+		f = "%.1f %s"
+	}
+
+	return fmt.Sprintf(f, val, suffix)
+}
+
+// Bytes produces a human readable representation of an SI size.
+//
+// See also: ParseBytes.
+//
+// Bytes(82854982) -> 83MB
+func Bytes(s uint64) string {
+	sizes := []string{"B", "kB", "MB", "GB", "TB", "PB", "EB"}
+	return humanateBytes(s, 1000, sizes)
+}
+
+// IBytes produces a human readable representation of an IEC size.
+//
+// See also: ParseBytes.
+//
+// IBytes(82854982) -> 79MiB
+func IBytes(s uint64) string {
+	sizes := []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"}
+	return humanateBytes(s, 1024, sizes)
+}
+
+// ParseBytes parses a string representation of bytes into the number
+// of bytes it represents.
+//
+// See Also: Bytes, IBytes.
+//
+// ParseBytes("42MB") -> 42000000, nil
+// ParseBytes("42mib") -> 44040192, nil
+func ParseBytes(s string) (uint64, error) {
+	lastDigit := 0
+	hasComma := false
+	for _, r := range s {
+		if !(unicode.IsDigit(r) || r == '.' || r == ',') {
+			break
+		}
+		if r == ',' {
+			hasComma = true
+		}
+		lastDigit++
+	}
+
+	num := s[:lastDigit]
+	if hasComma {
+		num = strings.Replace(num, ",", "", -1)
+	}
+
+	f, err := strconv.ParseFloat(num, 64)
+	if err != nil {
+		return 0, err
+	}
+
+	extra := strings.ToLower(strings.TrimSpace(s[lastDigit:]))
+	if m, ok := bytesSizeTable[extra]; ok {
+		f *= float64(m)
+		if f >= math.MaxUint64 {
+			return 0, fmt.Errorf("too large: %v", s)
+		}
+		return uint64(f), nil
+	}
+
+	return 0, fmt.Errorf("unhandled size name: %v", extra)
+}
--- a/vendor/github.com/dustin/go-humanize/comma.go
+++ b/vendor/github.com/dustin/go-humanize/comma.go
@@ -0,0 +1,108 @@
+package humanize
+
+import (
+	"bytes"
+	"math"
+	"math/big"
+	"strconv"
+	"strings"
+)
+
+// Comma produces a string form of the given number in base 10 with
+// commas after every three orders of magnitude.
+//
+// e.g. Comma(834142) -> 834,142
+func Comma(v int64) string {
+	sign := ""
+
+	// minin64 can't be negated to a usable value, so it has to be special cased.
+	if v == math.MinInt64 {
+		return "-9,223,372,036,854,775,808"
+	}
+
+	if v < 0 {
+		sign = "-"
+		v = 0 - v
+	}
+
+	parts := []string{"", "", "", "", "", "", ""}
+	j := len(parts) - 1
+
+	for v > 999 {
+		parts[j] = strconv.FormatInt(v%1000, 10)
+		switch len(parts[j]) {
+		case 2:
+			parts[j] = "0" + parts[j]
+		case 1:
+			parts[j] = "00" + parts[j]
+		}
+		v = v / 1000
+		j--
+	}
+	parts[j] = strconv.Itoa(int(v))
+	return sign + strings.Join(parts[j:], ",")
+}
+
+// Commaf produces a string form of the given number in base 10 with
+// commas after every three orders of magnitude.
+//
+// e.g. Commaf(834142.32) -> 834,142.32
+func Commaf(v float64) string {
+	buf := &bytes.Buffer{}
+	if v < 0 {
+		buf.Write([]byte{'-'})
+		v = 0 - v
+	}
+
+	comma := []byte{','}
+
+	parts := strings.Split(strconv.FormatFloat(v, 'f', -1, 64), ".")
+	pos := 0
+	if len(parts[0])%3 != 0 {
+		pos += len(parts[0]) % 3
+		buf.WriteString(parts[0][:pos])
+		buf.Write(comma)
+	}
+	for ; pos < len(parts[0]); pos += 3 {
+		buf.WriteString(parts[0][pos : pos+3])
+		buf.Write(comma)
+	}
+	buf.Truncate(buf.Len() - 1)
+
+	if len(parts) > 1 {
+		buf.Write([]byte{'.'})
+		buf.WriteString(parts[1])
+	}
+	return buf.String()
+}
+
+// BigComma produces a string form of the given big.Int in base 10
+// with commas after every three orders of magnitude.
+func BigComma(b *big.Int) string {
+	sign := ""
+	if b.Sign() < 0 {
+		sign = "-"
+		b.Abs(b)
+	}
+
+	athousand := big.NewInt(1000)
+	c := (&big.Int{}).Set(b)
+	_, m := oom(c, athousand)
+	parts := make([]string, m+1)
+	j := len(parts) - 1
+
+	mod := &big.Int{}
+	for b.Cmp(athousand) >= 0 {
+		b.DivMod(b, athousand, mod)
+		parts[j] = strconv.FormatInt(mod.Int64(), 10)
+		switch len(parts[j]) {
+		case 2:
+			parts[j] = "0" + parts[j]
+		case 1:
+			parts[j] = "00" + parts[j]
+		}
+		j--
+	}
+	parts[j] = strconv.Itoa(int(b.Int64()))
+	return sign + strings.Join(parts[j:], ",")
+}
--- a/vendor/github.com/dustin/go-humanize/commaf.go
+++ b/vendor/github.com/dustin/go-humanize/commaf.go
@@ -0,0 +1,40 @@
+// +build go1.6
+
+package humanize
+
+import (
+	"bytes"
+	"math/big"
+	"strings"
+)
+
+// BigCommaf produces a string form of the given big.Float in base 10
+// with commas after every three orders of magnitude.
+func BigCommaf(v *big.Float) string {
+	buf := &bytes.Buffer{}
+	if v.Sign() < 0 {
+		buf.Write([]byte{'-'})
+		v.Abs(v)
+	}
+
+	comma := []byte{','}
+
+	parts := strings.Split(v.Text('f', -1), ".")
+	pos := 0
+	if len(parts[0])%3 != 0 {
+		pos += len(parts[0]) % 3
+		buf.WriteString(parts[0][:pos])
+		buf.Write(comma)
+	}
+	for ; pos < len(parts[0]); pos += 3 {
+		buf.WriteString(parts[0][pos : pos+3])
+		buf.Write(comma)
+	}
+	buf.Truncate(buf.Len() - 1)
+
+	if len(parts) > 1 {
+		buf.Write([]byte{'.'})
+		buf.WriteString(parts[1])
+	}
+	return buf.String()
+}
--- a/vendor/github.com/dustin/go-humanize/ftoa.go
+++ b/vendor/github.com/dustin/go-humanize/ftoa.go
@@ -0,0 +1,23 @@
+package humanize
+
+import "strconv"
+
+func stripTrailingZeros(s string) string {
+	offset := len(s) - 1
+	for offset > 0 {
+		if s[offset] == '.' {
+			offset--
+			break
+		}
+		if s[offset] != '0' {
+			break
+		}
+		offset--
+	}
+	return s[:offset+1]
+}
+
+// Ftoa converts a float to a string with no trailing zeros.
+func Ftoa(num float64) string {
+	return stripTrailingZeros(strconv.FormatFloat(num, 'f', 6, 64))
+}
--- a/vendor/github.com/dustin/go-humanize/humanize.go
+++ b/vendor/github.com/dustin/go-humanize/humanize.go
@@ -0,0 +1,8 @@
+/*
+Package humanize converts boring ugly numbers to human-friendly strings and back.
+
+Durations can be turned into strings such as "3 days ago", numbers
+representing sizes like 82854982 into useful strings like, "83MB" or
+"79MiB" (whichever you prefer).
+*/
+package humanize
--- a/vendor/github.com/dustin/go-humanize/number.go
+++ b/vendor/github.com/dustin/go-humanize/number.go
@@ -0,0 +1,192 @@
+package humanize
+
+/*
+Slightly adapted from the source to fit go-humanize.
+
+Author: https://github.com/gorhill
+Source: https://gist.github.com/gorhill/5285193
+
+*/
+
+import (
+	"math"
+	"strconv"
+)
+
+var (
+	renderFloatPrecisionMultipliers = [...]float64{
+		1,
+		10,
+		100,
+		1000,
+		10000,
+		100000,
+		1000000,
+		10000000,
+		100000000,
+		1000000000,
+	}
+
+	renderFloatPrecisionRounders = [...]float64{
+		0.5,
+		0.05,
+		0.005,
+		0.0005,
+		0.00005,
+		0.000005,
+		0.0000005,
+		0.00000005,
+		0.000000005,
+		0.0000000005,
+	}
+)
+
+// FormatFloat produces a formatted number as string based on the following user-specified criteria:
+// * thousands separator
+// * decimal separator
+// * decimal precision
+//
+// Usage: s := RenderFloat(format, n)
+// The format parameter tells how to render the number n.
+//
+// See examples: http://play.golang.org/p/LXc1Ddm1lJ
+//
+// Examples of format strings, given n = 12345.6789:
+// "#,###.##" => "12,345.67"
+// "#,###." => "12,345"
+// "#,###" => "12345,678"
+// "#\u202F###,##" => "12 345,68"
+// "#.###,###### => 12.345,678900
+// "" (aka default format) => 12,345.67
+//
+// The highest precision allowed is 9 digits after the decimal symbol.
+// There is also a version for integer number, FormatInteger(),
+// which is convenient for calls within template.
+func FormatFloat(format string, n float64) string {
+	// Special cases:
+	//   NaN = "NaN"
+	//   +Inf = "+Infinity"
+	//   -Inf = "-Infinity"
+	if math.IsNaN(n) {
+		return "NaN"
+	}
+	if n > math.MaxFloat64 {
+		return "Infinity"
+	}
+	if n < -math.MaxFloat64 {
+		return "-Infinity"
+	}
+
+	// default format
+	precision := 2
+	decimalStr := "."
+	thousandStr := ","
+	positiveStr := ""
+	negativeStr := "-"
+
+	if len(format) > 0 {
+		format := []rune(format)
+
+		// If there is an explicit format directive,
+		// then default values are these:
+		precision = 9
+		thousandStr = ""
+
+		// collect indices of meaningful formatting directives
+		formatIndx := []int{}
+		for i, char := range format {
+			if char != '#' && char != '0' {
+				formatIndx = append(formatIndx, i)
+			}
+		}
+
+		if len(formatIndx) > 0 {
+			// Directive at index 0:
+			//   Must be a '+'
+			//   Raise an error if not the case
+			// index: 0123456789
+			//        +0.000,000
+			//        +000,000.0
+			//        +0000.00
+			//        +0000
+			if formatIndx[0] == 0 {
+				if format[formatIndx[0]] != '+' {
+					panic("RenderFloat(): invalid positive sign directive")
+				}
+				positiveStr = "+"
+				formatIndx = formatIndx[1:]
+			}
+
+			// Two directives:
+			//   First is thousands separator
+			//   Raise an error if not followed by 3-digit
+			// 0123456789
+			// 0.000,000
+			// 000,000.00
+			if len(formatIndx) == 2 {
+				if (formatIndx[1] - formatIndx[0]) != 4 {
+					panic("RenderFloat(): thousands separator directive must be followed by 3 digit-specifiers")
+				}
+				thousandStr = string(format[formatIndx[0]])
+				formatIndx = formatIndx[1:]
+			}
+
+			// One directive:
+			//   Directive is decimal separator
+			//   The number of digit-specifier following the separator indicates wanted precision
+			// 0123456789
+			// 0.00
+			// 000,0000
+			if len(formatIndx) == 1 {
+				decimalStr = string(format[formatIndx[0]])
+				precision = len(format) - formatIndx[0] - 1
+			}
+		}
+	}
+
+	// generate sign part
+	var signStr string
+	if n >= 0.000000001 {
+		signStr = positiveStr
+	} else if n <= -0.000000001 {
+		signStr = negativeStr
+		n = -n
+	} else {
+		signStr = ""
+		n = 0.0
+	}
+
+	// split number into integer and fractional parts
+	intf, fracf := math.Modf(n + renderFloatPrecisionRounders[precision])
+
+	// generate integer part string
+	intStr := strconv.FormatInt(int64(intf), 10)
+
+	// add thousand separator if required
+	if len(thousandStr) > 0 {
+		for i := len(intStr); i > 3; {
+			i -= 3
+			intStr = intStr[:i] + thousandStr + intStr[i:]
+		}
+	}
+
+	// no fractional part, we can leave now
+	if precision == 0 {
+		return signStr + intStr
+	}
+
+	// generate fractional part
+	fracStr := strconv.Itoa(int(fracf * renderFloatPrecisionMultipliers[precision]))
+	// may need padding
+	if len(fracStr) < precision {
+		fracStr = "000000000000000"[:precision-len(fracStr)] + fracStr
+	}
+
+	return signStr + intStr + decimalStr + fracStr
+}
+
+// FormatInteger produces a formatted number as string.
+// See FormatFloat.
+func FormatInteger(format string, n int) string {
+	return FormatFloat(format, float64(n))
+}
--- a/vendor/github.com/dustin/go-humanize/ordinals.go
+++ b/vendor/github.com/dustin/go-humanize/ordinals.go
@@ -0,0 +1,25 @@
+package humanize
+
+import "strconv"
+
+// Ordinal gives you the input number in a rank/ordinal format.
+//
+// Ordinal(3) -> 3rd
+func Ordinal(x int) string {
+	suffix := "th"
+	switch x % 10 {
+	case 1:
+		if x%100 != 11 {
+			suffix = "st"
+		}
+	case 2:
+		if x%100 != 12 {
+			suffix = "nd"
+		}
+	case 3:
+		if x%100 != 13 {
+			suffix = "rd"
+		}
+	}
+	return strconv.Itoa(x) + suffix
+}
--- a/vendor/github.com/dustin/go-humanize/si.go
+++ b/vendor/github.com/dustin/go-humanize/si.go
@@ -0,0 +1,113 @@
+package humanize
+
+import (
+	"errors"
+	"math"
+	"regexp"
+	"strconv"
+)
+
+var siPrefixTable = map[float64]string{
+	-24: "y", // yocto
+	-21: "z", // zepto
+	-18: "a", // atto
+	-15: "f", // femto
+	-12: "p", // pico
+	-9:  "n", // nano
+	-6:  "µ", // micro
+	-3:  "m", // milli
+	0:   "",
+	3:   "k", // kilo
+	6:   "M", // mega
+	9:   "G", // giga
+	12:  "T", // tera
+	15:  "P", // peta
+	18:  "E", // exa
+	21:  "Z", // zetta
+	24:  "Y", // yotta
+}
+
+var revSIPrefixTable = revfmap(siPrefixTable)
+
+// revfmap reverses the map and precomputes the power multiplier
+func revfmap(in map[float64]string) map[string]float64 {
+	rv := map[string]float64{}
+	for k, v := range in {
+		rv[v] = math.Pow(10, k)
+	}
+	return rv
+}
+
+var riParseRegex *regexp.Regexp
+
+func init() {
+	ri := `^([\-0-9.]+)\s?([`
+	for _, v := range siPrefixTable {
+		ri += v
+	}
+	ri += `]?)(.*)`
+
+	riParseRegex = regexp.MustCompile(ri)
+}
+
+// ComputeSI finds the most appropriate SI prefix for the given number
+// and returns the prefix along with the value adjusted to be within
+// that prefix.
+//
+// See also: SI, ParseSI.
+//
+// e.g. ComputeSI(2.2345e-12) -> (2.2345, "p")
+func ComputeSI(input float64) (float64, string) {
+	if input == 0 {
+		return 0, ""
+	}
+	mag := math.Abs(input)
+	exponent := math.Floor(logn(mag, 10))
+	exponent = math.Floor(exponent/3) * 3
+
+	value := mag / math.Pow(10, exponent)
+
+	// Handle special case where value is exactly 1000.0
+	// Should return 1M instead of 1000k
+	if value == 1000.0 {
+		exponent += 3
+		value = mag / math.Pow(10, exponent)
+	}
+
+	value = math.Copysign(value, input)
+
+	prefix := siPrefixTable[exponent]
+	return value, prefix
+}
+
+// SI returns a string with default formatting.
+//
+// SI uses Ftoa to format float value, removing trailing zeros.
+//
+// See also: ComputeSI, ParseSI.
+//
+// e.g. SI(1000000, B) -> 1MB
+// e.g. SI(2.2345e-12, "F") -> 2.2345pF
+func SI(input float64, unit string) string {
+	value, prefix := ComputeSI(input)
+	return Ftoa(value) + " " + prefix + unit
+}
+
+var errInvalid = errors.New("invalid input")
+
+// ParseSI parses an SI string back into the number and unit.
+//
+// See also: SI, ComputeSI.
+//
+// e.g. ParseSI(2.2345pF) -> (2.2345e-12, "F", nil)
+func ParseSI(input string) (float64, string, error) {
+	found := riParseRegex.FindStringSubmatch(input)
+	if len(found) != 4 {
+		return 0, "", errInvalid
+	}
+	mag := revSIPrefixTable[found[2]]
+	unit := found[3]
+
+	base, err := strconv.ParseFloat(found[1], 64)
+	return base * mag, unit, err
+}
--- a/vendor/github.com/dustin/go-humanize/times.go
+++ b/vendor/github.com/dustin/go-humanize/times.go
@@ -0,0 +1,117 @@
+package humanize
+
+import (
+	"fmt"
+	"math"
+	"sort"
+	"time"
+)
+
+// Seconds-based time units
+const (
+	Day      = 24 * time.Hour
+	Week     = 7 * Day
+	Month    = 30 * Day
+	Year     = 12 * Month
+	LongTime = 37 * Year
+)
+
+// Time formats a time into a relative string.
+//
+// Time(someT) -> "3 weeks ago"
+func Time(then time.Time) string {
+	return RelTime(then, time.Now(), "ago", "from now")
+}
+
+// A RelTimeMagnitude struct contains a relative time point at which
+// the relative format of time will switch to a new format string.  A
+// slice of these in ascending order by their "D" field is passed to
+// CustomRelTime to format durations.
+//
+// The Format field is a string that may contain a "%s" which will be
+// replaced with the appropriate signed label (e.g. "ago" or "from
+// now") and a "%d" that will be replaced by the quantity.
+//
+// The DivBy field is the amount of time the time difference must be
+// divided by in order to display correctly.
+//
+// e.g. if D is 2*time.Minute and you want to display "%d minutes %s"
+// DivBy should be time.Minute so whatever the duration is will be
+// expressed in minutes.
+type RelTimeMagnitude struct {
+	D      time.Duration
+	Format string
+	DivBy  time.Duration
+}
+
+var defaultMagnitudes = []RelTimeMagnitude{
+	{time.Second, "now", time.Second},
+	{2 * time.Second, "1 second %s", 1},
+	{time.Minute, "%d seconds %s", time.Second},
+	{2 * time.Minute, "1 minute %s", 1},
+	{time.Hour, "%d minutes %s", time.Minute},
+	{2 * time.Hour, "1 hour %s", 1},
+	{Day, "%d hours %s", time.Hour},
+	{2 * Day, "1 day %s", 1},
+	{Week, "%d days %s", Day},
+	{2 * Week, "1 week %s", 1},
+	{Month, "%d weeks %s", Week},
+	{2 * Month, "1 month %s", 1},
+	{Year, "%d months %s", Month},
+	{18 * Month, "1 year %s", 1},
+	{2 * Year, "2 years %s", 1},
+	{LongTime, "%d years %s", Year},
+	{math.MaxInt64, "a long while %s", 1},
+}
+
+// RelTime formats a time into a relative string.
+//
+// It takes two times and two labels.  In addition to the generic time
+// delta string (e.g. 5 minutes), the labels are used applied so that
+// the label corresponding to the smaller time is applied.
+//
+// RelTime(timeInPast, timeInFuture, "earlier", "later") -> "3 weeks earlier"
+func RelTime(a, b time.Time, albl, blbl string) string {
+	return CustomRelTime(a, b, albl, blbl, defaultMagnitudes)
+}
+
+// CustomRelTime formats a time into a relative string.
+//
+// It takes two times two labels and a table of relative time formats.
+// In addition to the generic time delta string (e.g. 5 minutes), the
+// labels are used applied so that the label corresponding to the
+// smaller time is applied.
+func CustomRelTime(a, b time.Time, albl, blbl string, magnitudes []RelTimeMagnitude) string {
+	lbl := albl
+	diff := b.Sub(a)
+
+	if a.After(b) {
+		lbl = blbl
+		diff = a.Sub(b)
+	}
+
+	n := sort.Search(len(magnitudes), func(i int) bool {
+		return magnitudes[i].D >= diff
+	})
+
+	if n >= len(magnitudes) {
+		n = len(magnitudes) - 1
+	}
+	mag := magnitudes[n]
+	args := []interface{}{}
+	escaped := false
+	for _, ch := range mag.Format {
+		if escaped {
+			switch ch {
+			case 's':
+				args = append(args, lbl)
+			case 'd':
+				args = append(args, diff/mag.DivBy)
+			}
+			escaped = false
+		} else {
+			escaped = ch == '%'
+		}
+	}
+	return fmt.Sprintf(mag.Format, args...)
+}
--- a/vendor/github.com/gliderlabs/ssh/README.md
+++ b/vendor/github.com/gliderlabs/ssh/README.md
@@ -14,7 +14,7 @@ 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:

-```
+```go
 package main

 import (
--- a/vendor/github.com/gliderlabs/ssh/agent.go
+++ b/vendor/github.com/gliderlabs/ssh/agent.go
@@ -22,8 +22,10 @@ const (
 // client requested agent forwarding
 var contextKeyAgentRequest = &contextKey{"auth-agent-req"}

-func setAgentRequested(sess *session) {
-	sess.ctx.SetValue(contextKeyAgentRequest, true)
+// SetAgentRequested sets up the session context so that AgentRequested
+// returns true.
+func SetAgentRequested(ctx Context) {
+	ctx.SetValue(contextKeyAgentRequest, true)
 }

 // AgentRequested returns true if the client requested agent forwarding.
--- a/vendor/github.com/gliderlabs/ssh/context.go
+++ b/vendor/github.com/gliderlabs/ssh/context.go
@@ -103,7 +103,7 @@ func newContext(srv *Server) (*sshContext, context.CancelFunc) {

 // 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) {
+func applyConnMetadata(ctx Context, conn gossh.ConnMetadata) {
 	if ctx.Value(ContextKeySessionID) != nil {
 		return
 	}
--- a/vendor/github.com/gliderlabs/ssh/server.go
+++ b/vendor/github.com/gliderlabs/ssh/server.go
@@ -26,6 +26,7 @@ type Server struct {

 	PasswordHandler             PasswordHandler             // password authentication handler
 	PublicKeyHandler            PublicKeyHandler            // public key authentication handler
+	ChannelHandler              ChannelHandler              // channel 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
@@ -33,16 +34,13 @@ type Server struct {
 	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)
+type ChannelHandler func(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx Context)

 func (srv *Server) ensureHostSigner() error {
 	if len(srv.HostSigners) == 0 {
@@ -55,11 +53,7 @@ func (srv *Server) ensureHostSigner() error {
 	return nil
 }

-func (srv *Server) config(ctx *sshContext) *gossh.ServerConfig {
-	srv.channelHandlers = map[string]channelHandler{
-		"session":      sessionHandler,
-		"direct-tcpip": directTcpipHandler,
-	}
+func (srv *Server) config(ctx Context) *gossh.ServerConfig {
 	config := &gossh.ServerConfig{}
 	for _, signer := range srv.HostSigners {
 		config.AddHostKey(signer)
@@ -72,7 +66,7 @@ func (srv *Server) config(ctx *sshContext) *gossh.ServerConfig {
 	}
 	if srv.PasswordHandler != nil {
 		config.PasswordCallback = func(conn gossh.ConnMetadata, password []byte) (*gossh.Permissions, error) {
-			ctx.applyConnMetadata(conn)
+			applyConnMetadata(ctx, conn)
 			if ok := srv.PasswordHandler(ctx, string(password)); !ok {
 				return ctx.Permissions().Permissions, fmt.Errorf("permission denied")
 			}
@@ -81,7 +75,7 @@ func (srv *Server) config(ctx *sshContext) *gossh.ServerConfig {
 	}
 	if srv.PublicKeyHandler != nil {
 		config.PublicKeyCallback = func(conn gossh.ConnMetadata, key gossh.PublicKey) (*gossh.Permissions, error) {
-			ctx.applyConnMetadata(conn)
+			applyConnMetadata(ctx, conn)
 			if ok := srv.PublicKeyHandler(ctx, key); !ok {
 				return ctx.Permissions().Permissions, fmt.Errorf("permission denied")
 			}
@@ -223,15 +217,25 @@ func (srv *Server) handleConn(newConn net.Conn) {
 	defer srv.trackConn(sshConn, false)

 	ctx.SetValue(ContextKeyConn, sshConn)
-	ctx.applyConnMetadata(sshConn)
+	applyConnMetadata(ctx, 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
+		if srv.ChannelHandler == nil {
+			DefaultChannelHandler(srv, sshConn, ch, ctx)
+		} else {
+			srv.ChannelHandler(srv, sshConn, ch, ctx)
 		}
-		go handler(srv, sshConn, ch, ctx)
+	}
+}
+
+func DefaultChannelHandler(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx Context) {
+	switch newChan.ChannelType() {
+	case "session":
+		go sessionHandler(srv, conn, newChan, ctx)
+	case "direct-tcpip":
+		go directTcpipHandler(srv, conn, newChan, ctx)
+	default:
+		newChan.Reject(gossh.UnknownChannelType, "unsupported channel type")
 	}
 }

--- a/vendor/github.com/gliderlabs/ssh/session.go
+++ b/vendor/github.com/gliderlabs/ssh/session.go
@@ -71,27 +71,24 @@ type Session interface {
 	// 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) {
+func sessionHandler(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx Context) {
 	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,
+		Channel: ch,
+		conn:    conn,
+		handler: srv.Handler,
+		ptyCb:   srv.PtyCallback,
+		ctx:     ctx,
 	}
 	sess.handleRequests(reqs)
 }
@@ -99,19 +96,18 @@ func sessionHandler(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChanne
 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
+	conn    *gossh.ServerConn
+	handler Handler
+	handled bool
+	exited  bool
+	pty     *Pty
+	winch   chan Window
+	env     []string
+	ptyCb   PtyCallback
+	cmd     []string
+	ctx     Context
+	sigCh   chan<- Signal
+	sigBuf  []Signal
 }

 func (sess *session) Write(p []byte) (n int, err error) {
@@ -146,13 +142,12 @@ func (sess *session) Permissions() Permissions {
 }

 func (sess *session) Context() context.Context {
-	return sess.ctx.Context
+	return sess.ctx
 }

 func (sess *session) Exit(code int) error {
 	sess.Lock()
 	defer sess.Unlock()
-
 	if sess.exited {
 		return errors.New("Session.Exit called multiple times")
 	}
@@ -163,9 +158,6 @@ func (sess *session) Exit(code int) error {
 	if err != nil {
 		return err
 	}
-
-	close(sess.maskedReqs)
-
 	return sess.Close()
 }

@@ -209,10 +201,6 @@ func (sess *session) Signals(c chan<- Signal) {
 	}
 }

-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 {
@@ -290,12 +278,10 @@ func (sess *session) handleRequests(reqs <-chan *gossh.Request) {
 			req.Reply(ok, nil)
 		case agentRequestType:
 			// TODO: option/callback to allow agent forwarding
-			setAgentRequested(sess)
+			SetAgentRequested(sess.ctx)
 			req.Reply(true, nil)
 		default:
 			// TODO: debug log
 		}
-
-		sess.maskedReqs <- req
 	}
 }
--- a/vendor/github.com/gliderlabs/ssh/tcpip.go
+++ b/vendor/github.com/gliderlabs/ssh/tcpip.go
@@ -17,7 +17,7 @@ type forwardData struct {
 	OriginatorPort uint32
 }

-func directTcpipHandler(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx *sshContext) {
+func directTcpipHandler(srv *Server, conn *gossh.ServerConn, newChan gossh.NewChannel, ctx Context) {
 	d := forwardData{}
 	if err := gossh.Unmarshal(newChan.ExtraData(), &d); err != nil {
 		newChan.Reject(gossh.ConnectionFailed, "error parsing forward data: "+err.Error())
--- a/vendor/github.com/gliderlabs/ssh/util.go
+++ b/vendor/github.com/gliderlabs/ssh/util.go
@@ -9,7 +9,7 @@ import (
 )

 func generateSigner() (ssh.Signer, error) {
-	key, err := rsa.GenerateKey(rand.Reader, 768)
+	key, err := rsa.GenerateKey(rand.Reader, 2048)
 	if err != nil {
 		return nil, err
 	}
--- a/vendor/github.com/go-gormigrate/gormigrate/LICENSE
+++ b/vendor/github.com/go-gormigrate/gormigrate/LICENSE
@@ -0,0 +1,8 @@
+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
@@ -0,0 +1,170 @@
+[![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
@@ -0,0 +1,16 @@
+# 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
@@ -0,0 +1,68 @@
+// 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
@@ -0,0 +1,285 @@
+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/kr/pty/License
+++ b/vendor/github.com/kr/pty/License
@@ -0,0 +1,23 @@
+Copyright (c) 2011 Keith Rarick
+
+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/kr/pty/README.md
+++ b/vendor/github.com/kr/pty/README.md
@@ -0,0 +1,36 @@
+# pty
+
+Pty is a Go package for using unix pseudo-terminals.
+
+## Install
+
+    go get github.com/kr/pty
+
+## Example
+
+```go
+package main
+
+import (
+	"github.com/kr/pty"
+	"io"
+	"os"
+	"os/exec"
+)
+
+func main() {
+	c := exec.Command("grep", "--color=auto", "bar")
+	f, err := pty.Start(c)
+	if err != nil {
+		panic(err)
+	}
+
+	go func() {
+		f.Write([]byte("foo\n"))
+		f.Write([]byte("bar\n"))
+		f.Write([]byte("baz\n"))
+		f.Write([]byte{4}) // EOT
+	}()
+	io.Copy(os.Stdout, f)
+}
+```
--- a/vendor/github.com/kr/pty/doc.go
+++ b/vendor/github.com/kr/pty/doc.go
@@ -0,0 +1,16 @@
+// Package pty provides functions for working with Unix terminals.
+package pty
+
+import (
+	"errors"
+	"os"
+)
+
+// ErrUnsupported is returned if a function is not
+// available on the current platform.
+var ErrUnsupported = errors.New("unsupported")
+
+// Opens a pty and its corresponding tty.
+func Open() (pty, tty *os.File, err error) {
+	return open()
+}
--- a/vendor/github.com/kr/pty/ioctl.go
+++ b/vendor/github.com/kr/pty/ioctl.go
@@ -0,0 +1,13 @@
+// +build !windows
+
+package pty
+
+import "syscall"
+
+func ioctl(fd, cmd, ptr uintptr) error {
+	_, _, e := syscall.Syscall(syscall.SYS_IOCTL, fd, cmd, ptr)
+	if e != 0 {
+		return e
+	}
+	return nil
+}
--- a/vendor/github.com/kr/pty/ioctl_bsd.go
+++ b/vendor/github.com/kr/pty/ioctl_bsd.go
@@ -0,0 +1,39 @@
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package pty
+
+// from <sys/ioccom.h>
+const (
+	_IOC_VOID    uintptr = 0x20000000
+	_IOC_OUT     uintptr = 0x40000000
+	_IOC_IN      uintptr = 0x80000000
+	_IOC_IN_OUT  uintptr = _IOC_OUT | _IOC_IN
+	_IOC_DIRMASK         = _IOC_VOID | _IOC_OUT | _IOC_IN
+
+	_IOC_PARAM_SHIFT = 13
+	_IOC_PARAM_MASK  = (1 << _IOC_PARAM_SHIFT) - 1
+)
+
+func _IOC_PARM_LEN(ioctl uintptr) uintptr {
+	return (ioctl >> 16) & _IOC_PARAM_MASK
+}
+
+func _IOC(inout uintptr, group byte, ioctl_num uintptr, param_len uintptr) uintptr {
+	return inout | (param_len&_IOC_PARAM_MASK)<<16 | uintptr(group)<<8 | ioctl_num
+}
+
+func _IO(group byte, ioctl_num uintptr) uintptr {
+	return _IOC(_IOC_VOID, group, ioctl_num, 0)
+}
+
+func _IOR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
+	return _IOC(_IOC_OUT, group, ioctl_num, param_len)
+}
+
+func _IOW(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
+	return _IOC(_IOC_IN, group, ioctl_num, param_len)
+}
+
+func _IOWR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
+	return _IOC(_IOC_IN_OUT, group, ioctl_num, param_len)
+}
--- a/vendor/github.com/kr/pty/mktypes.bash
+++ b/vendor/github.com/kr/pty/mktypes.bash
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+GOOSARCH="${GOOS}_${GOARCH}"
+case "$GOOSARCH" in
+_* | *_ | _)
+	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+esac
+
+GODEFS="go tool cgo -godefs"
+
+$GODEFS types.go |gofmt > ztypes_$GOARCH.go
+
+case $GOOS in
+freebsd|dragonfly)
+	$GODEFS types_$GOOS.go |gofmt > ztypes_$GOOSARCH.go
+	;;
+esac
--- a/vendor/github.com/kr/pty/pty_darwin.go
+++ b/vendor/github.com/kr/pty/pty_darwin.go
@@ -0,0 +1,60 @@
+package pty
+
+import (
+	"errors"
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+func open() (pty, tty *os.File, err error) {
+	p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	sname, err := ptsname(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	err = grantpt(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	err = unlockpt(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	t, err := os.OpenFile(sname, os.O_RDWR, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+	return p, t, nil
+}
+
+func ptsname(f *os.File) (string, error) {
+	n := make([]byte, _IOC_PARM_LEN(syscall.TIOCPTYGNAME))
+
+	err := ioctl(f.Fd(), syscall.TIOCPTYGNAME, uintptr(unsafe.Pointer(&n[0])))
+	if err != nil {
+		return "", err
+	}
+
+	for i, c := range n {
+		if c == 0 {
+			return string(n[:i]), nil
+		}
+	}
+	return "", errors.New("TIOCPTYGNAME string not NUL-terminated")
+}
+
+func grantpt(f *os.File) error {
+	return ioctl(f.Fd(), syscall.TIOCPTYGRANT, 0)
+}
+
+func unlockpt(f *os.File) error {
+	return ioctl(f.Fd(), syscall.TIOCPTYUNLK, 0)
+}
--- a/vendor/github.com/kr/pty/pty_dragonfly.go
+++ b/vendor/github.com/kr/pty/pty_dragonfly.go
@@ -0,0 +1,76 @@
+package pty
+
+import (
+	"errors"
+	"os"
+	"strings"
+	"syscall"
+	"unsafe"
+)
+
+// same code as pty_darwin.go
+func open() (pty, tty *os.File, err error) {
+	p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	sname, err := ptsname(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	err = grantpt(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	err = unlockpt(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	t, err := os.OpenFile(sname, os.O_RDWR, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+	return p, t, nil
+}
+
+func grantpt(f *os.File) error {
+	_, err := isptmaster(f.Fd())
+	return err
+}
+
+func unlockpt(f *os.File) error {
+	_, err := isptmaster(f.Fd())
+	return err
+}
+
+func isptmaster(fd uintptr) (bool, error) {
+	err := ioctl(fd, syscall.TIOCISPTMASTER, 0)
+	return err == nil, err
+}
+
+var (
+	emptyFiodgnameArg fiodgnameArg
+	ioctl_FIODNAME    = _IOW('f', 120, unsafe.Sizeof(emptyFiodgnameArg))
+)
+
+func ptsname(f *os.File) (string, error) {
+	name := make([]byte, _C_SPECNAMELEN)
+	fa := fiodgnameArg{Name: (*byte)(unsafe.Pointer(&name[0])), Len: _C_SPECNAMELEN, Pad_cgo_0: [4]byte{0, 0, 0, 0}}
+
+	err := ioctl(f.Fd(), ioctl_FIODNAME, uintptr(unsafe.Pointer(&fa)))
+	if err != nil {
+		return "", err
+	}
+
+	for i, c := range name {
+		if c == 0 {
+			s := "/dev/" + string(name[:i])
+			return strings.Replace(s, "ptm", "pts", -1), nil
+		}
+	}
+	return "", errors.New("TIOCPTYGNAME string not NUL-terminated")
+}
--- a/vendor/github.com/kr/pty/pty_freebsd.go
+++ b/vendor/github.com/kr/pty/pty_freebsd.go
@@ -0,0 +1,73 @@
+package pty
+
+import (
+	"errors"
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+func posix_openpt(oflag int) (fd int, err error) {
+	r0, _, e1 := syscall.Syscall(syscall.SYS_POSIX_OPENPT, uintptr(oflag), 0, 0)
+	fd = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+func open() (pty, tty *os.File, err error) {
+	fd, err := posix_openpt(syscall.O_RDWR | syscall.O_CLOEXEC)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	p := os.NewFile(uintptr(fd), "/dev/pts")
+	sname, err := ptsname(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	t, err := os.OpenFile("/dev/"+sname, os.O_RDWR, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+	return p, t, nil
+}
+
+func isptmaster(fd uintptr) (bool, error) {
+	err := ioctl(fd, syscall.TIOCPTMASTER, 0)
+	return err == nil, err
+}
+
+var (
+	emptyFiodgnameArg fiodgnameArg
+	ioctl_FIODGNAME   = _IOW('f', 120, unsafe.Sizeof(emptyFiodgnameArg))
+)
+
+func ptsname(f *os.File) (string, error) {
+	master, err := isptmaster(f.Fd())
+	if err != nil {
+		return "", err
+	}
+	if !master {
+		return "", syscall.EINVAL
+	}
+
+	const n = _C_SPECNAMELEN + 1
+	var (
+		buf = make([]byte, n)
+		arg = fiodgnameArg{Len: n, Buf: (*byte)(unsafe.Pointer(&buf[0]))}
+	)
+	err = ioctl(f.Fd(), ioctl_FIODGNAME, uintptr(unsafe.Pointer(&arg)))
+	if err != nil {
+		return "", err
+	}
+
+	for i, c := range buf {
+		if c == 0 {
+			return string(buf[:i]), nil
+		}
+	}
+	return "", errors.New("FIODGNAME string not NUL-terminated")
+}
--- a/vendor/github.com/kr/pty/pty_linux.go
+++ b/vendor/github.com/kr/pty/pty_linux.go
@@ -0,0 +1,46 @@
+package pty
+
+import (
+	"os"
+	"strconv"
+	"syscall"
+	"unsafe"
+)
+
+func open() (pty, tty *os.File, err error) {
+	p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	sname, err := ptsname(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	err = unlockpt(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	t, err := os.OpenFile(sname, os.O_RDWR|syscall.O_NOCTTY, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+	return p, t, nil
+}
+
+func ptsname(f *os.File) (string, error) {
+	var n _C_uint
+	err := ioctl(f.Fd(), syscall.TIOCGPTN, uintptr(unsafe.Pointer(&n)))
+	if err != nil {
+		return "", err
+	}
+	return "/dev/pts/" + strconv.Itoa(int(n)), nil
+}
+
+func unlockpt(f *os.File) error {
+	var u _C_int
+	// use TIOCSPTLCK with a zero valued arg to clear the slave pty lock
+	return ioctl(f.Fd(), syscall.TIOCSPTLCK, uintptr(unsafe.Pointer(&u)))
+}
--- a/vendor/github.com/kr/pty/pty_unsupported.go
+++ b/vendor/github.com/kr/pty/pty_unsupported.go
@@ -0,0 +1,11 @@
+// +build !linux,!darwin,!freebsd,!dragonfly
+
+package pty
+
+import (
+	"os"
+)
+
+func open() (pty, tty *os.File, err error) {
+	return nil, nil, ErrUnsupported
+}
--- a/vendor/github.com/kr/pty/run.go
+++ b/vendor/github.com/kr/pty/run.go
@@ -0,0 +1,34 @@
+// +build !windows
+
+package pty
+
+import (
+	"os"
+	"os/exec"
+	"syscall"
+)
+
+// Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
+// and c.Stderr, calls c.Start, and returns the File of the tty's
+// corresponding pty.
+func Start(c *exec.Cmd) (pty *os.File, err error) {
+	pty, tty, err := Open()
+	if err != nil {
+		return nil, err
+	}
+	defer tty.Close()
+	c.Stdout = tty
+	c.Stdin = tty
+	c.Stderr = tty
+	if c.SysProcAttr == nil {
+		c.SysProcAttr = &syscall.SysProcAttr{}
+	}
+	c.SysProcAttr.Setctty = true
+	c.SysProcAttr.Setsid = true
+	err = c.Start()
+	if err != nil {
+		pty.Close()
+		return nil, err
+	}
+	return pty, err
+}
--- a/vendor/github.com/kr/pty/types.go
+++ b/vendor/github.com/kr/pty/types.go
@@ -0,0 +1,10 @@
+// +build ignore
+
+package pty
+
+import "C"
+
+type (
+	_C_int  C.int
+	_C_uint C.uint
+)
--- a/vendor/github.com/kr/pty/types_dragonfly.go
+++ b/vendor/github.com/kr/pty/types_dragonfly.go
@@ -0,0 +1,17 @@
+// +build ignore
+
+package pty
+
+/*
+#define _KERNEL
+#include <sys/conf.h>
+#include <sys/param.h>
+#include <sys/filio.h>
+*/
+import "C"
+
+const (
+	_C_SPECNAMELEN = C.SPECNAMELEN /* max length of devicename */
+)
+
+type fiodgnameArg C.struct_fiodname_args
--- a/vendor/github.com/kr/pty/types_freebsd.go
+++ b/vendor/github.com/kr/pty/types_freebsd.go
@@ -0,0 +1,15 @@
+// +build ignore
+
+package pty
+
+/*
+#include <sys/param.h>
+#include <sys/filio.h>
+*/
+import "C"
+
+const (
+	_C_SPECNAMELEN = C.SPECNAMELEN /* max length of devicename */
+)
+
+type fiodgnameArg C.struct_fiodgname_arg
--- a/vendor/github.com/kr/pty/util.go
+++ b/vendor/github.com/kr/pty/util.go
@@ -0,0 +1,37 @@
+// +build !windows
+
+package pty
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+// Getsize returns the number of rows (lines) and cols (positions
+// in each line) in terminal t.
+func Getsize(t *os.File) (rows, cols int, err error) {
+	var ws winsize
+	err = windowrect(&ws, t.Fd())
+	return int(ws.ws_row), int(ws.ws_col), err
+}
+
+type winsize struct {
+	ws_row    uint16
+	ws_col    uint16
+	ws_xpixel uint16
+	ws_ypixel uint16
+}
+
+func windowrect(ws *winsize, fd uintptr) error {
+	_, _, errno := syscall.Syscall(
+		syscall.SYS_IOCTL,
+		fd,
+		syscall.TIOCGWINSZ,
+		uintptr(unsafe.Pointer(ws)),
+	)
+	if errno != 0 {
+		return syscall.Errno(errno)
+	}
+	return nil
+}
--- a/vendor/github.com/kr/pty/ztypes_386.go
+++ b/vendor/github.com/kr/pty/ztypes_386.go
@@ -0,0 +1,9 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/kr/pty/ztypes_amd64.go
+++ b/vendor/github.com/kr/pty/ztypes_amd64.go
@@ -0,0 +1,9 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/kr/pty/ztypes_arm.go
+++ b/vendor/github.com/kr/pty/ztypes_arm.go
@@ -0,0 +1,9 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/kr/pty/ztypes_arm64.go
+++ b/vendor/github.com/kr/pty/ztypes_arm64.go
@@ -0,0 +1,11 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+// +build arm64
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/kr/pty/ztypes_dragonfly_amd64.go
+++ b/vendor/github.com/kr/pty/ztypes_dragonfly_amd64.go
@@ -0,0 +1,14 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types_dragonfly.go
+
+package pty
+
+const (
+	_C_SPECNAMELEN = 0x3f
+)
+
+type fiodgnameArg struct {
+	Name      *byte
+	Len       uint32
+	Pad_cgo_0 [4]byte
+}
--- a/vendor/github.com/kr/pty/ztypes_freebsd_386.go
+++ b/vendor/github.com/kr/pty/ztypes_freebsd_386.go
@@ -0,0 +1,13 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types_freebsd.go
+
+package pty
+
+const (
+	_C_SPECNAMELEN = 0x3f
+)
+
+type fiodgnameArg struct {
+	Len int32
+	Buf *byte
+}
--- a/vendor/github.com/kr/pty/ztypes_freebsd_amd64.go
+++ b/vendor/github.com/kr/pty/ztypes_freebsd_amd64.go
@@ -0,0 +1,14 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types_freebsd.go
+
+package pty
+
+const (
+	_C_SPECNAMELEN = 0x3f
+)
+
+type fiodgnameArg struct {
+	Len       int32
+	Pad_cgo_0 [4]byte
+	Buf       *byte
+}
--- a/vendor/github.com/kr/pty/ztypes_freebsd_arm.go
+++ b/vendor/github.com/kr/pty/ztypes_freebsd_arm.go
@@ -0,0 +1,13 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types_freebsd.go
+
+package pty
+
+const (
+	_C_SPECNAMELEN = 0x3f
+)
+
+type fiodgnameArg struct {
+	Len int32
+	Buf *byte
+}
--- a/vendor/github.com/kr/pty/ztypes_mipsx.go
+++ b/vendor/github.com/kr/pty/ztypes_mipsx.go
@@ -0,0 +1,12 @@
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+// +build linux
+// +build mips mipsle mips64 mips64le
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/kr/pty/ztypes_ppc64.go
+++ b/vendor/github.com/kr/pty/ztypes_ppc64.go
@@ -0,0 +1,11 @@
+// +build ppc64
+
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/kr/pty/ztypes_ppc64le.go
+++ b/vendor/github.com/kr/pty/ztypes_ppc64le.go
@@ -0,0 +1,11 @@
+// +build ppc64le
+
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/kr/pty/ztypes_s390x.go
+++ b/vendor/github.com/kr/pty/ztypes_s390x.go
@@ -0,0 +1,11 @@
+// +build s390x
+
+// Created by cgo -godefs - DO NOT EDIT
+// cgo -godefs types.go
+
+package pty
+
+type (
+	_C_int  int32
+	_C_uint uint32
+)
--- a/vendor/github.com/mattn/go-colorable/LICENSE
+++ b/vendor/github.com/mattn/go-colorable/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Yasuhiro Matsumoto
+
+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/mattn/go-colorable/README.md
+++ b/vendor/github.com/mattn/go-colorable/README.md
@@ -0,0 +1,48 @@
+# go-colorable
+
+[![Godoc Reference](https://godoc.org/github.com/mattn/go-colorable?status.svg)](http://godoc.org/github.com/mattn/go-colorable)
+[![Build Status](https://travis-ci.org/mattn/go-colorable.svg?branch=master)](https://travis-ci.org/mattn/go-colorable)
+[![Coverage Status](https://coveralls.io/repos/github/mattn/go-colorable/badge.svg?branch=master)](https://coveralls.io/github/mattn/go-colorable?branch=master)
+[![Go Report Card](https://goreportcard.com/badge/mattn/go-colorable)](https://goreportcard.com/report/mattn/go-colorable)
+
+Colorable writer for windows.
+
+For example, most of logger packages doesn't show colors on windows. (I know we can do it with ansicon. But I don't want.)
+This package is possible to handle escape sequence for ansi color on windows.
+
+## Too Bad!
+
+![](https://raw.githubusercontent.com/mattn/go-colorable/gh-pages/bad.png)
+
+
+## So Good!
+
+![](https://raw.githubusercontent.com/mattn/go-colorable/gh-pages/good.png)
+
+## Usage
+
+```go
+logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true})
+logrus.SetOutput(colorable.NewColorableStdout())
+
+logrus.Info("succeeded")
+logrus.Warn("not correct")
+logrus.Error("something error")
+logrus.Fatal("panic")
+```
+
+You can compile above code on non-windows OSs.
+
+## Installation
+
+```
+$ go get github.com/mattn/go-colorable
+```
+
+# License
+
+MIT
+
+# Author
+
+Yasuhiro Matsumoto (a.k.a mattn)
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
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
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
Manfred Touron	f6ba06298d	v1.3.0	2017-11-23 19:04:00 +01:00
Manfred Touron	31a8cef59f	Merge pull request #9 from moul/dev/moul/roles Support multiple roles	2017-11-23 19:00:12 +01:00
Manfred Touron	beeba0551b	Add 'listhosts' role (fix #5 )	2017-11-23 18:59:59 +01:00
Manfred Touron	a36bb68957	Allow connecting to the shell mode with the registered username or email	2017-11-23 17:45:16 +01:00
Manfred Touron	9cd9152a91	Switch from IsAdmin boolean to Roles	2017-11-23 17:45:16 +01:00
Manfred Touron	09c1e0504e	Add 'acl update' command (fix #4 )	2017-11-23 12:01:17 +01:00
Manfred Touron	37d7c839dd	Add 'user update' command (fix #3 )	2017-11-23 11:36:24 +01:00
Manfred Touron	8ba418308e	Merge pull request #8 from moul/dev/moul/wip-update Add 'host update'	2017-11-23 10:36:34 +01:00
Manfred Touron	cfcf124d83	Improve CLI help messages	2017-11-23 10:35:51 +01:00
Manfred Touron	ccb0071d12	Add Add 'host update' command (fix #2 )	2017-11-23 10:15:28 +01:00
Manfred Touron	681f59c1e6	More details in 'ls' commands	2017-11-23 10:05:13 +01:00
Manfred Touron	1bdee1a107	Refactor database helpers	2017-11-23 09:58:32 +01:00
Manfred Touron	a2f3a51fe5	Post-release version bump	2017-11-22 15:16:24 +01:00
Manfred Touron	98d4360a76	v1.2.0	2017-11-22 15:15:30 +01:00
Manfred Touron	15c58c99b2	Small typo	2017-11-20 11:12:58 +01:00
Manfred Touron	e6198e16e5	Testing backup/restore/backup/diff in integration	2017-11-20 10:24:30 +01:00
Manfred Touron	97d166ad8f	Enable debug in integration	2017-11-19 01:30:37 +01:00
Manfred Touron	fb4ca3d219	Use a database migration system	2017-11-19 01:30:35 +01:00
Manfred Touron	62aea661cc	Backup/restore settings	2017-11-19 01:30:16 +01:00
Manfred Touron	f33326db4d	govendor add github.com/go-gormigrate/gormigrate	2017-11-19 01:30:15 +01:00
Manfred Touron	c5d00728d0	$> govendor add github.com/asaskevich/govalidator	2017-11-19 01:30:15 +01:00
Manfred Touron	1591cbc208	Use govalidator to perform more consistent input validation	2017-11-19 01:30:13 +01:00
Manfred Touron	58d9aef616	Test ACLs/hostgroups/usergroups	2017-11-15 19:17:14 +01:00
Manfred Touron	a087cdad09	Store and compare version in database	2017-11-15 19:17:14 +01:00
Manfred Touron	7f754e2ab9	Add basic integration tests	2017-11-15 19:17:14 +01:00
Manfred Touron	2261d27c94	Allow to set the first invite token (for testing)	2017-11-15 19:17:14 +01:00
Manfred Touron	f97c9f2878	Support assign multiple groups to hosts and users (#2 )	2017-11-15 19:16:55 +01:00
Manfred Touron	d6a7a6702f	Post-release version bump	2017-11-14 11:16:24 +01:00
Manfred Touron	abba8dc990	Show how to expose port with Docker	2017-11-14 10:15:40 +01:00
Manfred Touron	602514f517	Add Docker upgrade instructions	2017-11-14 10:12:25 +01:00
Manfred Touron	8db6afe8b9	Add 'make backup' dev helper	2017-11-14 09:57:59 +01:00