crashpad/util/net/http_multipart_builder_test.cc
Scott Graham f55a8d4ff3 fuchsia: Work around lack of packaging in Fuchsia tree build
Packaged test running seems to be a ways off, but with a bit of path
fiddling in test_paths.cc we can actually use the paths where the tests
are copied, so do that instead to get all the tests re-enabled. The
setup in BUILD.gn should be mostly-useful once packaging is working as
all helper/data files will need to specified there anyway.

Also, attempted fix to flaky behaviour in
ProcessReaderFuchsia.ChildThreads exposed because the tests are now
being run. zx_object_wait_many() waits on *any* of the objects, not
*all* of them. Derp!

And finally, for the same test, work around some unintuitive behaviour
in zx_task_suspend(), in particular that the thread will not be
suspended for the purpose of reading registers right away, but instead
only "sometime later", which appears in pratice to be after the next
context switch. Have ScopedTaskSuspend block for a while to try to
ensure the registers become readble, and if they don't, at least fail
noisily at that point.

Bug: crashpad:196
Change-Id: I01fb3590ede96301c941c2a88eba47fdbfe74ea7
Reviewed-on: https://chromium-review.googlesource.com/1053797
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>
2018-05-10 19:28:10 +00:00

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// Copyright 2014 The Crashpad Authors. All rights reserved.
//
// 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
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "util/net/http_multipart_builder.h"
#include <sys/types.h>
#include <vector>
#include "gtest/gtest.h"
#include "test/gtest_death.h"
#include "test/test_paths.h"
#include "util/net/http_body.h"
#include "util/net/http_body_test_util.h"
namespace crashpad {
namespace test {
namespace {
std::vector<std::string> SplitCRLF(const std::string& string) {
std::vector<std::string> lines;
size_t last_line = 0;
for (size_t i = 0; i < string.length(); ++i) {
if (string[i] == '\r' && i+1 < string.length() && string[i+1] == '\n') {
lines.push_back(string.substr(last_line, i - last_line));
last_line = i + 2;
++i;
}
}
// Append any remainder.
if (last_line < string.length()) {
lines.push_back(string.substr(last_line));
}
return lines;
}
// In the tests below, the form data pairs dont appear in the order they were
// added. The current implementation uses a std::map which sorts keys, so the
// entires appear in alphabetical order. However, this is an implementation
// detail, and its OK if the writer stops sorting in this order. Testing for
// a specific order is just the easiest way to write this test while the writer
// will output things in a known order.
TEST(HTTPMultipartBuilder, ThreeStringFields) {
HTTPMultipartBuilder builder;
static constexpr char kKey1[] = "key1";
static constexpr char kValue1[] = "test";
builder.SetFormData(kKey1, kValue1);
static constexpr char kKey2[] = "key2";
static constexpr char kValue2[] = "This is another test.";
builder.SetFormData(kKey2, kValue2);
static constexpr char kKey3[] = "key-three";
static constexpr char kValue3[] = "More tests";
builder.SetFormData(kKey3, kValue3);
std::unique_ptr<HTTPBodyStream> body(builder.GetBodyStream());
ASSERT_TRUE(body.get());
std::string contents = ReadStreamToString(body.get());
auto lines = SplitCRLF(contents);
ASSERT_EQ(lines.size(), 13u);
auto lines_it = lines.begin();
// The first line is the boundary. All subsequent boundaries must match this.
const std::string& boundary = *lines_it++;
EXPECT_GE(boundary.length(), 1u);
EXPECT_LE(boundary.length(), 70u);
EXPECT_EQ(*lines_it++, "Content-Disposition: form-data; name=\"key-three\"");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kValue3);
EXPECT_EQ(*lines_it++, boundary);
EXPECT_EQ(*lines_it++, "Content-Disposition: form-data; name=\"key1\"");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kValue1);
EXPECT_EQ(*lines_it++, boundary);
EXPECT_EQ(*lines_it++, "Content-Disposition: form-data; name=\"key2\"");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kValue2);
EXPECT_EQ(*lines_it++, boundary + "--");
EXPECT_EQ(lines_it, lines.end());
}
TEST(HTTPMultipartBuilder, ThreeFileAttachments) {
HTTPMultipartBuilder builder;
base::FilePath ascii_http_body_path = TestPaths::TestDataRoot().Append(
FILE_PATH_LITERAL("util/net/testdata/ascii_http_body.txt"));
FileReader reader1;
ASSERT_TRUE(reader1.Open(ascii_http_body_path));
builder.SetFileAttachment("first", "minidump.dmp", &reader1, "");
FileReader reader2;
ASSERT_TRUE(reader2.Open(ascii_http_body_path));
builder.SetFileAttachment("second", "minidump.dmp", &reader2, "text/plain");
FileReader reader3;
ASSERT_TRUE(reader3.Open(ascii_http_body_path));
builder.SetFileAttachment(
"\"third 50% silly\"", "test%foo.txt", &reader3, "text/plain");
static constexpr char kFileContents[] = "This is a test.\n";
std::unique_ptr<HTTPBodyStream> body(builder.GetBodyStream());
ASSERT_TRUE(body.get());
std::string contents = ReadStreamToString(body.get());
auto lines = SplitCRLF(contents);
ASSERT_EQ(lines.size(), 16u);
auto lines_it = lines.begin();
const std::string& boundary = *lines_it++;
EXPECT_GE(boundary.length(), 1u);
EXPECT_LE(boundary.length(), 70u);
EXPECT_EQ(*lines_it++,
"Content-Disposition: form-data; "
"name=\"%22third 50%25 silly%22\"; filename=\"test%25foo.txt\"");
EXPECT_EQ(*lines_it++, "Content-Type: text/plain");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kFileContents);
EXPECT_EQ(*lines_it++, boundary);
EXPECT_EQ(*lines_it++,
"Content-Disposition: form-data; "
"name=\"first\"; filename=\"minidump.dmp\"");
EXPECT_EQ(*lines_it++, "Content-Type: application/octet-stream");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kFileContents);
EXPECT_EQ(*lines_it++, boundary);
EXPECT_EQ(*lines_it++,
"Content-Disposition: form-data; "
"name=\"second\"; filename=\"minidump.dmp\"");
EXPECT_EQ(*lines_it++, "Content-Type: text/plain");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kFileContents);
EXPECT_EQ(*lines_it++, boundary + "--");
EXPECT_EQ(lines_it, lines.end());
}
TEST(HTTPMultipartBuilder, OverwriteFormDataWithEscapedKey) {
HTTPMultipartBuilder builder;
static constexpr char kKey[] = "a 100% \"silly\"\r\ntest";
builder.SetFormData(kKey, "some dummy value");
builder.SetFormData(kKey, "overwrite");
std::unique_ptr<HTTPBodyStream> body(builder.GetBodyStream());
ASSERT_TRUE(body.get());
std::string contents = ReadStreamToString(body.get());
auto lines = SplitCRLF(contents);
ASSERT_EQ(lines.size(), 5u);
auto lines_it = lines.begin();
const std::string& boundary = *lines_it++;
EXPECT_GE(boundary.length(), 1u);
EXPECT_LE(boundary.length(), 70u);
EXPECT_EQ(*lines_it++,
"Content-Disposition: form-data; name=\"a 100%25 "
"%22silly%22%0d%0atest\"");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, "overwrite");
EXPECT_EQ(*lines_it++, boundary + "--");
EXPECT_EQ(lines_it, lines.end());
}
TEST(HTTPMultipartBuilder, OverwriteFileAttachment) {
HTTPMultipartBuilder builder;
static constexpr char kValue[] = "1 2 3 test";
builder.SetFormData("a key", kValue);
base::FilePath testdata_path =
TestPaths::TestDataRoot().Append(FILE_PATH_LITERAL("util/net/testdata"));
FileReader reader1;
ASSERT_TRUE(reader1.Open(
testdata_path.Append(FILE_PATH_LITERAL("binary_http_body.dat"))));
builder.SetFileAttachment("minidump", "minidump.dmp", &reader1, "");
FileReader reader2;
ASSERT_TRUE(reader2.Open(
testdata_path.Append(FILE_PATH_LITERAL("binary_http_body.dat"))));
builder.SetFileAttachment("minidump2", "minidump.dmp", &reader2, "");
FileReader reader3;
ASSERT_TRUE(reader3.Open(
testdata_path.Append(FILE_PATH_LITERAL("ascii_http_body.txt"))));
builder.SetFileAttachment("minidump", "minidump.dmp", &reader3, "text/plain");
std::unique_ptr<HTTPBodyStream> body(builder.GetBodyStream());
ASSERT_TRUE(body.get());
std::string contents = ReadStreamToString(body.get());
auto lines = SplitCRLF(contents);
ASSERT_EQ(lines.size(), 15u);
auto lines_it = lines.begin();
const std::string& boundary = *lines_it++;
EXPECT_GE(boundary.length(), 1u);
EXPECT_LE(boundary.length(), 70u);
EXPECT_EQ(*lines_it++, "Content-Disposition: form-data; name=\"a key\"");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kValue);
EXPECT_EQ(*lines_it++, boundary);
EXPECT_EQ(*lines_it++,
"Content-Disposition: form-data; "
"name=\"minidump\"; filename=\"minidump.dmp\"");
EXPECT_EQ(*lines_it++, "Content-Type: text/plain");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, "This is a test.\n");
EXPECT_EQ(*lines_it++, boundary);
EXPECT_EQ(*lines_it++,
"Content-Disposition: form-data; "
"name=\"minidump2\"; filename=\"minidump.dmp\"");
EXPECT_EQ(*lines_it++, "Content-Type: application/octet-stream");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, "\xFE\xED\xFA\xCE\xA1\x1A\x15");
EXPECT_EQ(*lines_it++, boundary + "--");
EXPECT_EQ(lines_it, lines.end());
}
TEST(HTTPMultipartBuilder, SharedFormDataAndAttachmentKeyNamespace) {
HTTPMultipartBuilder builder;
static constexpr char kValue1[] = "11111";
builder.SetFormData("one", kValue1);
base::FilePath ascii_http_body_path = TestPaths::TestDataRoot().Append(
FILE_PATH_LITERAL("util/net/testdata/ascii_http_body.txt"));
FileReader reader;
ASSERT_TRUE(reader.Open(ascii_http_body_path));
builder.SetFileAttachment("minidump", "minidump.dmp", &reader, "");
static constexpr char kValue2[] = "this is not a file";
builder.SetFormData("minidump", kValue2);
std::unique_ptr<HTTPBodyStream> body(builder.GetBodyStream());
ASSERT_TRUE(body.get());
std::string contents = ReadStreamToString(body.get());
auto lines = SplitCRLF(contents);
ASSERT_EQ(lines.size(), 9u);
auto lines_it = lines.begin();
const std::string& boundary = *lines_it++;
EXPECT_GE(boundary.length(), 1u);
EXPECT_LE(boundary.length(), 70u);
EXPECT_EQ(*lines_it++, "Content-Disposition: form-data; name=\"minidump\"");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kValue2);
EXPECT_EQ(*lines_it++, boundary);
EXPECT_EQ(*lines_it++, "Content-Disposition: form-data; name=\"one\"");
EXPECT_EQ(*lines_it++, "");
EXPECT_EQ(*lines_it++, kValue1);
EXPECT_EQ(*lines_it++, boundary + "--");
EXPECT_EQ(lines_it, lines.end());
}
TEST(HTTPMultipartBuilderDeathTest, AssertUnsafeMIMEType) {
HTTPMultipartBuilder builder;
FileReader reader;
// Invalid and potentially dangerous:
ASSERT_DEATH_CHECK(builder.SetFileAttachment("", "", &reader, "\r\n"), "");
ASSERT_DEATH_CHECK(builder.SetFileAttachment("", "", &reader, "\""), "");
ASSERT_DEATH_CHECK(builder.SetFileAttachment("", "", &reader, "\x12"), "");
ASSERT_DEATH_CHECK(builder.SetFileAttachment("", "", &reader, "<>"), "");
// Invalid but safe:
builder.SetFileAttachment("", "", &reader, "0/totally/-invalid.pdf");
// Valid and safe:
builder.SetFileAttachment("", "", &reader, "application/xml+xhtml");
}
} // namespace
} // namespace test
} // namespace crashpad