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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/offline_pages/core/archive_validator.h"
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
#if defined(OS_ANDROID)
#include "base/test/test_file_util.h"
#endif // defined(OS_ANDROID)
namespace offline_pages {
namespace {
const char kTestData1[] = "This is a test. ";
const char kTestData2[] = "Hello World!";
const int kSmallFileSize = 2 * 1024;
const int kBigFileSize = 3 * 1024 * 1024;
#if defined(OS_ANDROID)
const int kSizeForTestContentUri = 173;
#endif // defined(OS_ANDROID)
// Digest for kTestData1 + kTestData2.
const std::string kExpectedDigestForTestData(
"\x9D\xBF\xED\xE4\x54\x16\xA6\xA3\x36\x2C\x88\xD8\xA8\x2A\x3A\xF3\x51\x1A"
"\x6E\x34\x7E\xEF\xA4\xD5\x1D\xDE\x2A\xD0\xFE\x39\xE8\xA8",
32);
// Digest for file with size 2K, filled with test data.
const std::string kExpectedDigestForSmallFile(
"\x10\xFC\x3C\x51\xA1\x52\xE9\x0E\x5B\x90\x31\x9B\x60\x1D\x92\xCC\xF3\x72"
"\x90\xEF\x53\xC3\x5F\xF9\x25\x07\x68\x7D\x8A\x91\x1A\x08",
32);
// Digest for file with size 3M, filled with test data.
const std::string kExpectedDigestForBigFile(
"\xF6\xDD\x7F\xEC\x85\x84\xAD\x00\x21\x9A\x44\x70\x71\xC1\xFA\x36\x8A\x1C"
"\xAE\xE4\xD9\xC1\x46\x08\x3D\x23\x37\x13\xDD\xCC\xD2\xC0",
32);
// Digest for content URI generated from net/data/file_stream_unittest/red.png.
const std::string kExpectedDigestForContentUri(
"\xEB\x7E\xB8\xE7\x3E\xD1\xE5\x45\x55\xCF\xA1\x8B\x7D\xD6\x75\x26\x2F\x8C"
"\x8C\xDE\x31\x2B\x94\x43\x46\xE2\xF7\x74\xC8\xF7\x3A\x18",
32);
// Helper function to make a character array filled with |size| bytes of
// test content.
std::string MakeContentOfSize(int size) {
EXPECT_GE(size, 0);
std::string result;
result.reserve(size);
for (int i = 0; i < size; i++)
result.append(1, static_cast<char>(i % 256));
return result;
}
#if defined(OS_ANDROID)
base::FilePath GetContentUriPathForTest() {
base::FilePath test_dir;
base::PathService::Get(base::DIR_SOURCE_ROOT, &test_dir);
test_dir = test_dir.AppendASCII("net");
test_dir = test_dir.AppendASCII("data");
test_dir = test_dir.AppendASCII("file_stream_unittest");
EXPECT_TRUE(base::PathExists(test_dir));
base::FilePath image_file = test_dir.Append(FILE_PATH_LITERAL("red.png"));
// Insert the image into MediaStore. MediaStore will do some conversions, and
// return the content URI.
base::FilePath path = base::InsertImageIntoMediaStore(image_file);
EXPECT_TRUE(path.IsContentUri());
EXPECT_TRUE(base::PathExists(path));
return path;
}
#endif // defined(OS_ANDROID)
} // namespace
class ArchiveValidatorTest : public testing::Test {
public:
ArchiveValidatorTest() = default;
~ArchiveValidatorTest() override = default;
base::FilePath CreateFileWithContent(const std::string& content);
private:
base::ScopedTempDir temp_dir_;
};
base::FilePath ArchiveValidatorTest::CreateFileWithContent(
const std::string& content) {
if (!temp_dir_.CreateUniqueTempDir())
return base::FilePath();
base::FilePath temp_file_path =
temp_dir_.GetPath().Append(FILE_PATH_LITERAL("foo.txt"));
base::WriteFile(temp_file_path, content.c_str(), content.length());
return temp_file_path;
}
TEST_F(ArchiveValidatorTest, ComputeDigestOnData) {
ArchiveValidator archive_validator;
archive_validator.Update(kTestData1, sizeof(kTestData1) - 1);
archive_validator.Update(kTestData2, sizeof(kTestData2) - 1);
std::string actual_digest = archive_validator.Finish();
EXPECT_EQ(kExpectedDigestForTestData, actual_digest);
}
TEST_F(ArchiveValidatorTest, GetSizeAndComputeDigestOnTinyFile) {
std::string expected_data(kTestData1);
expected_data += kTestData2;
base::FilePath temp_file_path = CreateFileWithContent(expected_data);
std::pair<int64_t, std::string> actual_size_and_digest =
ArchiveValidator::GetSizeAndComputeDigest(temp_file_path);
EXPECT_EQ(static_cast<int64_t>(expected_data.size()),
actual_size_and_digest.first);
EXPECT_EQ(kExpectedDigestForTestData, actual_size_and_digest.second);
}
TEST_F(ArchiveValidatorTest, GetSizeAndComputeDigestOnSmallFile) {
std::string expected_data(MakeContentOfSize(kSmallFileSize));
base::FilePath temp_file_path = CreateFileWithContent(expected_data);
std::pair<int64_t, std::string> actual_size_and_digest =
ArchiveValidator::GetSizeAndComputeDigest(temp_file_path);
EXPECT_EQ(kSmallFileSize, actual_size_and_digest.first);
EXPECT_EQ(kExpectedDigestForSmallFile, actual_size_and_digest.second);
}
TEST_F(ArchiveValidatorTest, GetSizeAndComputeDigestOnBigFile) {
std::string expected_data(MakeContentOfSize(kBigFileSize));
base::FilePath temp_file_path = CreateFileWithContent(expected_data);
std::pair<int64_t, std::string> actual_size_and_digest =
ArchiveValidator::GetSizeAndComputeDigest(temp_file_path);
EXPECT_EQ(kBigFileSize, actual_size_and_digest.first);
EXPECT_EQ(kExpectedDigestForBigFile, actual_size_and_digest.second);
}
#if defined(OS_ANDROID)
TEST_F(ArchiveValidatorTest, GetSizeAndComputeDigestOnContentUri) {
base::FilePath content_uri_path = GetContentUriPathForTest();
std::pair<int64_t, std::string> actual_size_and_digest =
ArchiveValidator::GetSizeAndComputeDigest(content_uri_path);
EXPECT_EQ(kSizeForTestContentUri, actual_size_and_digest.first);
EXPECT_EQ(kExpectedDigestForContentUri, actual_size_and_digest.second);
}
#endif // defined(OS_ANDROID)
TEST_F(ArchiveValidatorTest, ValidateSmallFile) {
std::string expected_data(MakeContentOfSize(kSmallFileSize));
base::FilePath temp_file_path = CreateFileWithContent(expected_data);
EXPECT_TRUE(ArchiveValidator::ValidateFile(temp_file_path, kSmallFileSize,
kExpectedDigestForSmallFile));
}
TEST_F(ArchiveValidatorTest, ValidateBigFile) {
std::string expected_data(MakeContentOfSize(kBigFileSize));
base::FilePath temp_file_path = CreateFileWithContent(expected_data);
EXPECT_TRUE(ArchiveValidator::ValidateFile(temp_file_path, kBigFileSize,
kExpectedDigestForBigFile));
}
#if defined(OS_ANDROID)
TEST_F(ArchiveValidatorTest, ValidateContentUri) {
base::FilePath content_uri_path = GetContentUriPathForTest();
EXPECT_TRUE(ArchiveValidator::ValidateFile(
content_uri_path, kSizeForTestContentUri, kExpectedDigestForContentUri));
}
#endif // defined(OS_ANDROID)
} // namespace offline_pages
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