crashpad/util/net/http_multipart_builder_test.cc
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

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// Copyright 2014 The Crashpad Authors
//
// 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