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zip_unittest.cc
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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/zlib/google/zip.h"
#include <stddef.h>
#include <stdint.h>
#include <iomanip>
#include <limits>
#include <string>
#include <string_view>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include "base/files/file.h"
#include "base/files/file_enumerator.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/strings/strcat.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/test/bind.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
#include "third_party/zlib/google/zip_internal.h"
#include "third_party/zlib/google/zip_reader.h"
// Convenience macro to create a file path from a string literal.
#define FP(path) base::FilePath(FILE_PATH_LITERAL(path))
namespace {
using testing::UnorderedElementsAre;
using testing::UnorderedElementsAreArray;
std::vector<std::string> GetRelativePaths(const base::FilePath& dir,
base::FileEnumerator::FileType type) {
std::vector<std::string> got_paths;
base::FileEnumerator files(dir, true, type);
for (base::FilePath path = files.Next(); !path.empty(); path = files.Next()) {
base::FilePath relative;
EXPECT_TRUE(dir.AppendRelativePath(path, &relative));
got_paths.push_back(relative.NormalizePathSeparatorsTo('/').AsUTF8Unsafe());
}
EXPECT_EQ(base::File::FILE_OK, files.GetError());
return got_paths;
}
bool CreateFile(const std::string& content,
base::FilePath* file_path,
base::File* file) {
if (!base::CreateTemporaryFile(file_path))
return false;
if (!base::WriteFile(*file_path, content)) {
return false;
}
*file = base::File(
*file_path, base::File::Flags::FLAG_OPEN | base::File::Flags::FLAG_READ);
return file->IsValid();
}
// A WriterDelegate that logs progress once per second.
class ProgressWriterDelegate : public zip::WriterDelegate {
public:
explicit ProgressWriterDelegate(int64_t expected_size)
: expected_size_(expected_size) {
CHECK_GT(expected_size_, 0);
}
bool WriteBytes(const char* data, int num_bytes) override {
received_bytes_ += num_bytes;
LogProgressIfNecessary();
return true;
}
void SetTimeModified(const base::Time& time) override { LogProgress(); }
int64_t received_bytes() const { return received_bytes_; }
private:
void LogProgressIfNecessary() {
const base::TimeTicks now = base::TimeTicks::Now();
if (next_progress_report_time_ > now)
return;
next_progress_report_time_ = now + progress_period_;
LogProgress();
}
void LogProgress() const {
LOG(INFO) << "Unzipping... " << std::setw(3)
<< (100 * received_bytes_ / expected_size_) << "%";
}
const base::TimeDelta progress_period_ = base::Seconds(1);
base::TimeTicks next_progress_report_time_ =
base::TimeTicks::Now() + progress_period_;
const uint64_t expected_size_;
int64_t received_bytes_ = 0;
};
// A virtual file system containing:
// /test
// /test/foo.txt
// /test/bar/bar1.txt
// /test/bar/bar2.txt
// Used to test providing a custom zip::FileAccessor when unzipping.
class VirtualFileSystem : public zip::FileAccessor {
public:
static constexpr char kFooContent[] = "This is foo.";
static constexpr char kBar1Content[] = "This is bar.";
static constexpr char kBar2Content[] = "This is bar too.";
VirtualFileSystem() {
base::FilePath test_dir;
base::FilePath foo_txt_path = test_dir.AppendASCII("foo.txt");
base::FilePath file_path;
base::File file;
bool success = CreateFile(kFooContent, &file_path, &file);
DCHECK(success);
files_[foo_txt_path] = std::move(file);
base::FilePath bar_dir = test_dir.AppendASCII("bar");
base::FilePath bar1_txt_path = bar_dir.AppendASCII("bar1.txt");
success = CreateFile(kBar1Content, &file_path, &file);
DCHECK(success);
files_[bar1_txt_path] = std::move(file);
base::FilePath bar2_txt_path = bar_dir.AppendASCII("bar2.txt");
success = CreateFile(kBar2Content, &file_path, &file);
DCHECK(success);
files_[bar2_txt_path] = std::move(file);
file_tree_[base::FilePath()] = {{foo_txt_path}, {bar_dir}};
file_tree_[bar_dir] = {{bar1_txt_path, bar2_txt_path}};
file_tree_[foo_txt_path] = {};
file_tree_[bar1_txt_path] = {};
file_tree_[bar2_txt_path] = {};
}
VirtualFileSystem(const VirtualFileSystem&) = delete;
VirtualFileSystem& operator=(const VirtualFileSystem&) = delete;
~VirtualFileSystem() override = default;
private:
bool Open(const zip::Paths paths,
std::vector<base::File>* const files) override {
DCHECK(files);
files->reserve(files->size() + paths.size());
for (const base::FilePath& path : paths) {
const auto it = files_.find(path);
if (it == files_.end()) {
files->emplace_back();
} else {
EXPECT_TRUE(it->second.IsValid());
files->push_back(std::move(it->second));
}
}
return true;
}
bool List(const base::FilePath& path,
std::vector<base::FilePath>* const files,
std::vector<base::FilePath>* const subdirs) override {
DCHECK(!path.IsAbsolute());
DCHECK(files);
DCHECK(subdirs);
const auto it = file_tree_.find(path);
if (it == file_tree_.end())
return false;
for (const base::FilePath& file : it->second.files) {
DCHECK(!file.empty());
files->push_back(file);
}
for (const base::FilePath& subdir : it->second.subdirs) {
DCHECK(!subdir.empty());
subdirs->push_back(subdir);
}
return true;
}
bool GetInfo(const base::FilePath& path, Info* const info) override {
DCHECK(!path.IsAbsolute());
DCHECK(info);
if (!file_tree_.count(path))
return false;
info->is_directory = !files_.count(path);
info->last_modified =
base::Time::FromSecondsSinceUnixEpoch(172097977); // Some random date.
return true;
}
struct DirContents {
std::vector<base::FilePath> files, subdirs;
};
std::unordered_map<base::FilePath, DirContents> file_tree_;
std::unordered_map<base::FilePath, base::File> files_;
};
// static
constexpr char VirtualFileSystem::kFooContent[];
constexpr char VirtualFileSystem::kBar1Content[];
constexpr char VirtualFileSystem::kBar2Content[];
// Make the test a PlatformTest to setup autorelease pools properly on Mac.
class ZipTest : public PlatformTest {
protected:
enum ValidYearType { VALID_YEAR, INVALID_YEAR };
virtual void SetUp() {
PlatformTest::SetUp();
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
test_dir_ = temp_dir_.GetPath();
base::FilePath zip_path(test_dir_);
zip_contents_.insert(zip_path.AppendASCII("foo.txt"));
zip_path = zip_path.AppendASCII("foo");
zip_contents_.insert(zip_path);
zip_contents_.insert(zip_path.AppendASCII("bar.txt"));
zip_path = zip_path.AppendASCII("bar");
zip_contents_.insert(zip_path);
zip_contents_.insert(zip_path.AppendASCII("baz.txt"));
zip_contents_.insert(zip_path.AppendASCII("quux.txt"));
zip_contents_.insert(zip_path.AppendASCII(".hidden"));
// Include a subset of files in |zip_file_list_| to test ZipFiles().
zip_file_list_.push_back(FP("foo.txt"));
zip_file_list_.push_back(FP("foo/bar/quux.txt"));
zip_file_list_.push_back(FP("foo/bar/.hidden"));
}
virtual void TearDown() { PlatformTest::TearDown(); }
static base::FilePath GetDataDirectory() {
base::FilePath path;
bool success = base::PathService::Get(base::DIR_SRC_TEST_DATA_ROOT, &path);
EXPECT_TRUE(success);
return std::move(path)
.AppendASCII("third_party")
.AppendASCII("zlib")
.AppendASCII("google")
.AppendASCII("test")
.AppendASCII("data");
}
void TestUnzipFile(const base::FilePath::StringType& filename,
bool expect_hidden_files) {
TestUnzipFile(GetDataDirectory().Append(filename), expect_hidden_files);
}
void TestUnzipFile(const base::FilePath& path, bool expect_hidden_files) {
ASSERT_TRUE(base::PathExists(path)) << "no file " << path;
ASSERT_TRUE(zip::Unzip(path, test_dir_));
base::FilePath original_dir = GetDataDirectory().AppendASCII("test");
base::FileEnumerator files(
test_dir_, true,
base::FileEnumerator::FILES | base::FileEnumerator::DIRECTORIES);
size_t count = 0;
for (base::FilePath unzipped_entry_path = files.Next();
!unzipped_entry_path.empty(); unzipped_entry_path = files.Next()) {
EXPECT_EQ(zip_contents_.count(unzipped_entry_path), 1U)
<< "Couldn't find " << unzipped_entry_path;
count++;
if (base::PathExists(unzipped_entry_path) &&
!base::DirectoryExists(unzipped_entry_path)) {
// It's a file, check its contents are what we zipped.
base::FilePath relative_path;
ASSERT_TRUE(
test_dir_.AppendRelativePath(unzipped_entry_path, &relative_path))
<< "Cannot append relative path failed, params: '" << test_dir_
<< "' and '" << unzipped_entry_path << "'";
base::FilePath original_path = original_dir.Append(relative_path);
EXPECT_TRUE(base::ContentsEqual(original_path, unzipped_entry_path))
<< "Original file '" << original_path << "' and unzipped file '"
<< unzipped_entry_path << "' have different contents";
}
}
EXPECT_EQ(base::File::FILE_OK, files.GetError());
size_t expected_count = 0;
for (const base::FilePath& path : zip_contents_) {
if (expect_hidden_files || path.BaseName().value()[0] != '.')
++expected_count;
}
EXPECT_EQ(expected_count, count);
}
// This function does the following:
// 1) Creates a test.txt file with the given last modification timestamp
// 2) Zips test.txt and extracts it back into a different location.
// 3) Confirms that test.txt in the output directory has the specified
// last modification timestamp if it is valid (|valid_year| is true).
// If the timestamp is not supported by the zip format, the last
// modification defaults to the current time.
void TestTimeStamp(const char* date_time, ValidYearType valid_year) {
SCOPED_TRACE(std::string("TestTimeStamp(") + date_time + ")");
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath zip_file = temp_dir.GetPath().AppendASCII("out.zip");
base::FilePath src_dir = temp_dir.GetPath().AppendASCII("input");
base::FilePath out_dir = temp_dir.GetPath().AppendASCII("output");
base::FilePath src_file = src_dir.AppendASCII("test.txt");
base::FilePath out_file = out_dir.AppendASCII("test.txt");
EXPECT_TRUE(base::CreateDirectory(src_dir));
EXPECT_TRUE(base::CreateDirectory(out_dir));
base::Time test_mtime;
ASSERT_TRUE(base::Time::FromString(date_time, &test_mtime));
// Adjusting the current timestamp to the resolution that the zip file
// supports, which is 2 seconds. Note that between this call to Time::Now()
// and zip::Zip() the clock can advance a bit, hence the use of EXPECT_GE.
base::Time::Exploded now_parts;
base::Time::Now().UTCExplode(&now_parts);
now_parts.second = now_parts.second & ~1;
now_parts.millisecond = 0;
base::Time now_time;
EXPECT_TRUE(base::Time::FromUTCExploded(now_parts, &now_time));
EXPECT_TRUE(base::WriteFile(src_file, "1"));
EXPECT_TRUE(base::TouchFile(src_file, base::Time::Now(), test_mtime));
EXPECT_TRUE(zip::Zip(src_dir, zip_file, true));
ASSERT_TRUE(zip::Unzip(zip_file, out_dir));
base::File::Info file_info;
EXPECT_TRUE(base::GetFileInfo(out_file, &file_info));
EXPECT_EQ(file_info.size, 1);
if (valid_year == VALID_YEAR) {
EXPECT_EQ(file_info.last_modified, test_mtime);
} else {
// Invalid date means the modification time will default to 'now'.
EXPECT_GE(file_info.last_modified, now_time);
}
}
// The path to temporary directory used to contain the test operations.
base::FilePath test_dir_;
base::ScopedTempDir temp_dir_;
// Hard-coded contents of a known zip file.
std::unordered_set<base::FilePath> zip_contents_;
// Hard-coded list of relative paths for a zip file created with ZipFiles.
std::vector<base::FilePath> zip_file_list_;
};
TEST_F(ZipTest, UnzipNoSuchFile) {
EXPECT_FALSE(zip::Unzip(GetDataDirectory().AppendASCII("No Such File.zip"),
test_dir_));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre());
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::DIRECTORIES),
UnorderedElementsAre());
}
TEST_F(ZipTest, Unzip) {
TestUnzipFile(FILE_PATH_LITERAL("test.zip"), true);
}
TEST_F(ZipTest, UnzipUncompressed) {
TestUnzipFile(FILE_PATH_LITERAL("test_nocompress.zip"), true);
}
TEST_F(ZipTest, UnzipEvil) {
base::FilePath path = GetDataDirectory().AppendASCII("evil.zip");
// Unzip the zip file into a sub directory of test_dir_ so evil.zip
// won't create a persistent file outside test_dir_ in case of a
// failure.
base::FilePath output_dir = test_dir_.AppendASCII("out");
EXPECT_TRUE(zip::Unzip(path, output_dir));
EXPECT_TRUE(base::PathExists(output_dir.AppendASCII(
"UP/levilevilevilevilevilevilevilevilevilevilevilevil")));
}
TEST_F(ZipTest, UnzipEvil2) {
// The ZIP file contains a file with invalid UTF-8 in its file name.
base::FilePath path =
GetDataDirectory().AppendASCII("evil_via_invalid_utf8.zip");
// See the comment at UnzipEvil() for why we do this.
base::FilePath output_dir = test_dir_.AppendASCII("out");
ASSERT_TRUE(zip::Unzip(path, output_dir));
ASSERT_TRUE(base::PathExists(
output_dir.Append(base::FilePath::FromUTF8Unsafe(".�.�evil.txt"))));
ASSERT_FALSE(base::PathExists(output_dir.AppendASCII("../evil.txt")));
}
TEST_F(ZipTest, UnzipWithFilter) {
auto filter = base::BindRepeating([](const base::FilePath& path) {
return path.BaseName().MaybeAsASCII() == "foo.txt";
});
ASSERT_TRUE(zip::Unzip(GetDataDirectory().AppendASCII("test.zip"), test_dir_,
{.filter = std::move(filter)}));
// Only foo.txt should have been extracted.
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("foo.txt"));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::DIRECTORIES),
UnorderedElementsAre());
}
TEST_F(ZipTest, UnzipEncryptedWithRightPassword) {
// TODO(crbug.com/1296838) Also check the AES-encrypted files.
auto filter = base::BindRepeating([](const base::FilePath& path) {
return !base::StartsWith(path.MaybeAsASCII(), "Encrypted AES");
});
ASSERT_TRUE(zip::Unzip(
GetDataDirectory().AppendASCII("Different Encryptions.zip"), test_dir_,
{.filter = std::move(filter), .password = "password"}));
std::string contents;
ASSERT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("ClearText.txt"),
&contents));
EXPECT_EQ("This is not encrypted.\n", contents);
ASSERT_TRUE(base::ReadFileToString(
test_dir_.AppendASCII("Encrypted ZipCrypto.txt"), &contents));
EXPECT_EQ("This is encrypted with ZipCrypto.\n", contents);
}
TEST_F(ZipTest, UnzipEncryptedWithWrongPassword) {
// TODO(crbug.com/1296838) Also check the AES-encrypted files.
auto filter = base::BindRepeating([](const base::FilePath& path) {
return !base::StartsWith(path.MaybeAsASCII(), "Encrypted AES");
});
ASSERT_FALSE(zip::Unzip(
GetDataDirectory().AppendASCII("Different Encryptions.zip"), test_dir_,
{.filter = std::move(filter), .password = "wrong"}));
std::string contents;
ASSERT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("ClearText.txt"),
&contents));
EXPECT_EQ("This is not encrypted.\n", contents);
// No rubbish file should be left behind.
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("ClearText.txt"));
}
TEST_F(ZipTest, UnzipEncryptedWithNoPassword) {
// TODO(crbug.com/1296838) Also check the AES-encrypted files.
auto filter = base::BindRepeating([](const base::FilePath& path) {
return !base::StartsWith(path.MaybeAsASCII(), "Encrypted AES");
});
ASSERT_FALSE(
zip::Unzip(GetDataDirectory().AppendASCII("Different Encryptions.zip"),
test_dir_, {.filter = std::move(filter)}));
std::string contents;
ASSERT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("ClearText.txt"),
&contents));
EXPECT_EQ("This is not encrypted.\n", contents);
// No rubbish file should be left behind.
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("ClearText.txt"));
}
TEST_F(ZipTest, UnzipEncryptedContinueOnError) {
EXPECT_TRUE(
zip::Unzip(GetDataDirectory().AppendASCII("Different Encryptions.zip"),
test_dir_, {.continue_on_error = true}));
std::string contents;
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("ClearText.txt"),
&contents));
EXPECT_EQ("This is not encrypted.\n", contents);
// No rubbish file should be left behind.
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("ClearText.txt"));
}
TEST_F(ZipTest, UnzipWrongCrc) {
ASSERT_FALSE(
zip::Unzip(GetDataDirectory().AppendASCII("Wrong CRC.zip"), test_dir_));
// No rubbish file should be left behind.
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre());
}
TEST_F(ZipTest, UnzipRepeatedDirName) {
EXPECT_TRUE(zip::Unzip(
GetDataDirectory().AppendASCII("Repeated Dir Name.zip"), test_dir_));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre());
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::DIRECTORIES),
UnorderedElementsAre("repeated"));
}
TEST_F(ZipTest, UnzipRepeatedFileName) {
EXPECT_FALSE(zip::Unzip(
GetDataDirectory().AppendASCII("Repeated File Name.zip"), test_dir_));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("repeated"));
std::string contents;
EXPECT_TRUE(
base::ReadFileToString(test_dir_.AppendASCII("repeated"), &contents));
EXPECT_EQ("First file", contents);
}
TEST_F(ZipTest, UnzipCannotCreateEmptyDir) {
EXPECT_FALSE(zip::Unzip(
GetDataDirectory().AppendASCII("Empty Dir Same Name As File.zip"),
test_dir_));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("repeated"));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::DIRECTORIES),
UnorderedElementsAre());
std::string contents;
EXPECT_TRUE(
base::ReadFileToString(test_dir_.AppendASCII("repeated"), &contents));
EXPECT_EQ("First file", contents);
}
TEST_F(ZipTest, UnzipCannotCreateParentDir) {
EXPECT_FALSE(zip::Unzip(
GetDataDirectory().AppendASCII("Parent Dir Same Name As File.zip"),
test_dir_));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("repeated"));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::DIRECTORIES),
UnorderedElementsAre());
std::string contents;
EXPECT_TRUE(
base::ReadFileToString(test_dir_.AppendASCII("repeated"), &contents));
EXPECT_EQ("First file", contents);
}
// TODO(crbug.com/1311140) Detect and rename reserved file names on Windows.
TEST_F(ZipTest, UnzipWindowsSpecialNames) {
EXPECT_TRUE(
zip::Unzip(GetDataDirectory().AppendASCII("Windows Special Names.zip"),
test_dir_, {.continue_on_error = true}));
std::unordered_set<std::string> want_paths = {
"First",
"Last",
"CLOCK$",
" NUL.txt",
#ifndef OS_WIN
"NUL",
"NUL ",
"NUL.",
"NUL .",
"NUL.txt",
"NUL.tar.gz",
"NUL..txt",
"NUL...txt",
"NUL .txt",
"NUL .txt",
"NUL ..txt",
#ifndef OS_APPLE
"Nul.txt",
#endif
"nul.very long extension",
"a/NUL",
"CON",
"PRN",
"AUX",
"COM1",
"COM2",
"COM3",
"COM4",
"COM5",
"COM6",
"COM7",
"COM8",
"COM9",
"LPT1",
"LPT2",
"LPT3",
"LPT4",
"LPT5",
"LPT6",
"LPT7",
"LPT8",
"LPT9",
#endif
};
const std::vector<std::string> got_paths =
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES);
for (const std::string& path : got_paths) {
const bool ok = want_paths.erase(path);
#ifdef OS_WIN
if (!ok) {
// See crbug.com/1313991: Different versions of Windows treat these
// filenames differently. No hard error here if there is an unexpected
// file.
LOG(WARNING) << "Found unexpected file: " << std::quoted(path);
continue;
}
#else
EXPECT_TRUE(ok) << "Found unexpected file: " << std::quoted(path);
#endif
std::string contents;
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII(path), &contents));
EXPECT_EQ(base::StrCat({"This is: ", path}), contents);
}
for (const std::string& path : want_paths) {
EXPECT_TRUE(false) << "Cannot find expected file: " << std::quoted(path);
}
}
TEST_F(ZipTest, UnzipDifferentCases) {
#if defined(OS_WIN) || defined(OS_APPLE)
// Only the first file (with mixed case) is extracted.
EXPECT_FALSE(zip::Unzip(GetDataDirectory().AppendASCII(
"Repeated File Name With Different Cases.zip"),
test_dir_));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("Case"));
std::string contents;
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("Case"), &contents));
EXPECT_EQ("Mixed case 111", contents);
#else
// All the files are extracted.
EXPECT_TRUE(zip::Unzip(GetDataDirectory().AppendASCII(
"Repeated File Name With Different Cases.zip"),
test_dir_));
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("Case", "case", "CASE"));
std::string contents;
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("Case"), &contents));
EXPECT_EQ("Mixed case 111", contents);
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("case"), &contents));
EXPECT_EQ("Lower case 22", contents);
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("CASE"), &contents));
EXPECT_EQ("Upper case 3", contents);
#endif
}
TEST_F(ZipTest, UnzipDifferentCasesContinueOnError) {
EXPECT_TRUE(zip::Unzip(GetDataDirectory().AppendASCII(
"Repeated File Name With Different Cases.zip"),
test_dir_, {.continue_on_error = true}));
std::string contents;
#if defined(OS_WIN) || defined(OS_APPLE)
// Only the first file (with mixed case) has been extracted.
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("Case"));
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("Case"), &contents));
EXPECT_EQ("Mixed case 111", contents);
#else
// All the files have been extracted.
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES),
UnorderedElementsAre("Case", "case", "CASE"));
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("Case"), &contents));
EXPECT_EQ("Mixed case 111", contents);
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("case"), &contents));
EXPECT_EQ("Lower case 22", contents);
EXPECT_TRUE(base::ReadFileToString(test_dir_.AppendASCII("CASE"), &contents));
EXPECT_EQ("Upper case 3", contents);
#endif
}
TEST_F(ZipTest, UnzipMixedPaths) {
EXPECT_TRUE(zip::Unzip(GetDataDirectory().AppendASCII("Mixed Paths.zip"),
test_dir_, {.continue_on_error = true}));
std::unordered_set<std::string> want_paths = {
#ifdef OS_WIN
"Dot", //
"Space→", //
#else
" ", //
"...", // Disappears on Windows
"....", // Disappears on Windows
"AUX", // Disappears on Windows
"COM1", // Disappears on Windows
"COM2", // Disappears on Windows
"COM3", // Disappears on Windows
"COM4", // Disappears on Windows
"COM5", // Disappears on Windows
"COM6", // Disappears on Windows
"COM7", // Disappears on Windows
"COM8", // Disappears on Windows
"COM9", // Disappears on Windows
"CON", // Disappears on Windows
"Dot .", //
"LPT1", // Disappears on Windows
"LPT2", // Disappears on Windows
"LPT3", // Disappears on Windows
"LPT4", // Disappears on Windows
"LPT5", // Disappears on Windows
"LPT6", // Disappears on Windows
"LPT7", // Disappears on Windows
"LPT8", // Disappears on Windows
"LPT9", // Disappears on Windows
"NUL ..txt", // Disappears on Windows
"NUL .txt", // Disappears on Windows
"NUL ", // Disappears on Windows
"NUL .", // Disappears on Windows
"NUL .txt", // Disappears on Windows
"NUL", // Disappears on Windows
"NUL.", // Disappears on Windows
"NUL...txt", // Disappears on Windows
"NUL..txt", // Disappears on Windows
"NUL.tar.gz", // Disappears on Windows
"NUL.txt", // Disappears on Windows
"PRN", // Disappears on Windows
"Space→ ", //
"c/NUL", // Disappears on Windows
"nul.very long extension", // Disappears on Windows
#ifndef OS_APPLE
"CASE", // Conflicts with "Case"
"case", // Conflicts with "Case"
#endif
#endif
" NUL.txt", //
" ←Space", //
"$HOME", //
"%TMP", //
"-", //
"...Three", //
"..Two", //
".One", //
"Ampersand &", //
"Angle ��", //
"At @", //
"Backslash1→�", //
"Backslash3→�←Backslash4", //
"Backspace �", //
"Backtick `", //
"Bell �", //
"CLOCK$", //
"Caret ^", //
"Carriage Return �", //
"Case", //
"Colon �", //
"Comma ,", //
"Curly {}", //
"C�", //
"C��", //
"C��Temp", //
"C��Temp�", //
"C��Temp�File", //
"Dash -", //
"Delete \x7F", //
"Dollar $", //
"Double quote �", //
"Equal =", //
"Escape �", //
"Euro €", //
"Exclamation !", //
"FileOrDir", //
"First", //
"Hash #", //
"Last", //
"Line Feed �", //
"Percent %", //
"Pipe �", //
"Plus +", //
"Question �", //
"Quote '", //
"ROOT/At The Top", //
"ROOT/UP/Over The Top", //
"ROOT/dev/null", //
"Round ()", //
"Semicolon ;", //
"Smile \U0001F642", //
"Square []", //
"Star �", //
"String Terminator \u009C", //
"Tab �", //
"Tilde ~", //
"UP/One Level Up", //
"UP/UP/Two Levels Up", //
"Underscore _", //
"a/DOT/b", //
"a/UP/b", //
"u/v/w/x/y/z", //
"~", //
"�←Backslash2", //
"��server�share�file", //
};
const std::vector<std::string> got_paths =
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::FILES);
for (const std::string& path : got_paths) {
const bool ok = want_paths.erase(path);
#ifdef OS_WIN
// See crbug.com/1313991: Different versions of Windows treat reserved
// Windows filenames differently. No hard error here if there is an
// unexpected file.
LOG_IF(WARNING, !ok) << "Found unexpected file: " << std::quoted(path);
#else
EXPECT_TRUE(ok) << "Found unexpected file: " << std::quoted(path);
#endif
}
for (const std::string& path : want_paths) {
EXPECT_TRUE(false) << "Cannot find expected file: " << std::quoted(path);
}
EXPECT_THAT(
GetRelativePaths(test_dir_, base::FileEnumerator::FileType::DIRECTORIES),
UnorderedElementsAreArray({
"Empty",
"ROOT",
"ROOT/Empty",
"ROOT/UP",
"ROOT/dev",
"UP",
"UP/UP",
"a",
"a/DOT",
"a/UP",
"c",
"u",
"u/v",
"u/v/w",
"u/v/w/x",
"u/v/w/x/y",
}));
}
TEST_F(ZipTest, UnzipWithDelegates) {
auto dir_creator =
base::BindLambdaForTesting([this](const base::FilePath& entry_path) {
return base::CreateDirectory(test_dir_.Append(entry_path));
});
auto writer =
base::BindLambdaForTesting([this](const base::FilePath& entry_path)
-> std::unique_ptr<zip::WriterDelegate> {
return std::make_unique<zip::FilePathWriterDelegate>(
test_dir_.Append(entry_path));
});
base::File file(GetDataDirectory().AppendASCII("test.zip"),
base::File::Flags::FLAG_OPEN | base::File::Flags::FLAG_READ);
EXPECT_TRUE(zip::Unzip(file.GetPlatformFile(), writer, dir_creator));
base::FilePath dir = test_dir_;
base::FilePath dir_foo = dir.AppendASCII("foo");
base::FilePath dir_foo_bar = dir_foo.AppendASCII("bar");
EXPECT_TRUE(base::PathExists(dir.AppendASCII("foo.txt")));
EXPECT_TRUE(base::DirectoryExists(dir_foo));
EXPECT_TRUE(base::PathExists(dir_foo.AppendASCII("bar.txt")));
EXPECT_TRUE(base::DirectoryExists(dir_foo_bar));
EXPECT_TRUE(base::PathExists(dir_foo_bar.AppendASCII(".hidden")));
EXPECT_TRUE(base::PathExists(dir_foo_bar.AppendASCII("baz.txt")));
EXPECT_TRUE(base::PathExists(dir_foo_bar.AppendASCII("quux.txt")));
}
TEST_F(ZipTest, UnzipOnlyDirectories) {
auto dir_creator =
base::BindLambdaForTesting([this](const base::FilePath& entry_path) {
return base::CreateDirectory(test_dir_.Append(entry_path));
});
// Always return a null WriterDelegate.
auto writer =
base::BindLambdaForTesting([](const base::FilePath& entry_path) {
return std::unique_ptr<zip::WriterDelegate>();
});
base::File file(GetDataDirectory().AppendASCII("test.zip"),
base::File::Flags::FLAG_OPEN | base::File::Flags::FLAG_READ);
EXPECT_TRUE(zip::Unzip(file.GetPlatformFile(), writer, dir_creator,
{.continue_on_error = true}));
base::FilePath dir = test_dir_;
base::FilePath dir_foo = dir.AppendASCII("foo");
base::FilePath dir_foo_bar = dir_foo.AppendASCII("bar");
EXPECT_FALSE(base::PathExists(dir.AppendASCII("foo.txt")));
EXPECT_TRUE(base::DirectoryExists(dir_foo));
EXPECT_FALSE(base::PathExists(dir_foo.AppendASCII("bar.txt")));
EXPECT_TRUE(base::DirectoryExists(dir_foo_bar));
EXPECT_FALSE(base::PathExists(dir_foo_bar.AppendASCII(".hidden")));
EXPECT_FALSE(base::PathExists(dir_foo_bar.AppendASCII("baz.txt")));
EXPECT_FALSE(base::PathExists(dir_foo_bar.AppendASCII("quux.txt")));
}
// Tests that a ZIP archive containing SJIS-encoded file names can be correctly
// extracted if the encoding is specified.
TEST_F(ZipTest, UnzipSjis) {
ASSERT_TRUE(zip::Unzip(GetDataDirectory().AppendASCII("SJIS Bug 846195.zip"),
test_dir_, {.encoding = "Shift_JIS"}));
const base::FilePath dir =
test_dir_.Append(base::FilePath::FromUTF8Unsafe("新しいフォルダ"));
EXPECT_TRUE(base::DirectoryExists(dir));
std::string contents;
ASSERT_TRUE(base::ReadFileToString(
dir.Append(base::FilePath::FromUTF8Unsafe("SJIS_835C_ソ.txt")),
&contents));
EXPECT_EQ(
"This file's name contains 0x5c (backslash) as the 2nd byte of Japanese "
"characater \"\x83\x5c\" when encoded in Shift JIS.",
contents);
ASSERT_TRUE(base::ReadFileToString(dir.Append(base::FilePath::FromUTF8Unsafe(
"新しいテキスト ドキュメント.txt")),
&contents));
EXPECT_EQ("This file name is coded in Shift JIS in the archive.", contents);
}
// Tests that a ZIP archive containing SJIS-encoded file names can be extracted
// even if the encoding is not specified. In this case, file names are
// interpreted as UTF-8, which leads to garbled names where invalid UTF-8
// sequences are replaced with the character �. Nevertheless, the files are
// safely extracted and readable.
TEST_F(ZipTest, UnzipSjisAsUtf8) {
ASSERT_TRUE(zip::Unzip(GetDataDirectory().AppendASCII("SJIS Bug 846195.zip"),
test_dir_));
EXPECT_FALSE(base::DirectoryExists(
test_dir_.Append(base::FilePath::FromUTF8Unsafe("新しいフォルダ"))));
const base::FilePath dir =
test_dir_.Append(base::FilePath::FromUTF8Unsafe("�V�����t�H���_"));
EXPECT_TRUE(base::DirectoryExists(dir));
std::string contents;