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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/updater/util/util.h"
#include <sys/stat.h>
#include <unistd.h>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/posix/safe_strerror.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace updater {
namespace {
void CheckPermission(const base::FilePath& path, int mode) {
struct stat st_buf;
ASSERT_EQ(lstat(path.value().c_str(), &st_buf), 0)
<< path << ": " << base::safe_strerror(errno);
EXPECT_EQ(st_buf.st_mode & 0777, mode) << path;
}
void SetPermission(const base::FilePath& path, int mode) {
EXPECT_EQ(lchmod(path.value().c_str(), mode), 0)
<< path << ": " << base::safe_strerror(errno);
CheckPermission(path, mode);
}
} // namespace
TEST(UtilTest, SetFilePermissionsRecursiveTest) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
const base::FilePath temp = temp_dir.GetPath();
// Create files.
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("f1"), ""));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("f2"), ""));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("f3"), ""));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("f4"), ""));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("f5"), ""));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("f6"), ""));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("f7"), ""));
ASSERT_TRUE(base::CreateDirectory(temp.AppendASCII("d1")));
ASSERT_TRUE(base::CreateDirectory(temp.AppendASCII("d2")));
ASSERT_TRUE(base::CreateDirectory(temp.AppendASCII("d3")));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("d2").AppendASCII("f"), ""));
ASSERT_TRUE(base::WriteFile(temp.AppendASCII("d3").AppendASCII("f"), ""));
ASSERT_TRUE(base::CreateSymbolicLink(temp.AppendASCII("d1"),
temp.AppendASCII("l_d1")));
ASSERT_TRUE(base::CreateSymbolicLink(temp.AppendASCII("n"),
temp.AppendASCII("l_dangling")));
ASSERT_TRUE(base::CreateSymbolicLink(temp.AppendASCII("f2"),
temp.AppendASCII("l_f2")));
SetPermission(temp, 0700);
SetPermission(temp.AppendASCII("f1"), 0600);
SetPermission(temp.AppendASCII("f2"), 0600);
SetPermission(temp.AppendASCII("f3"), 0700);
SetPermission(temp.AppendASCII("f4"), 0000);
SetPermission(temp.AppendASCII("f5"), 0400);
SetPermission(temp.AppendASCII("f6"), 0650);
SetPermission(temp.AppendASCII("f7"), 0001);
SetPermission(temp.AppendASCII("d1"), 0700);
SetPermission(temp.AppendASCII("d2"), 0700);
SetPermission(temp.AppendASCII("d2").AppendASCII("f"), 0600);
SetPermission(temp.AppendASCII("d3").AppendASCII("f"), 0600);
SetPermission(temp.AppendASCII("d3"), 0000);
SetPermission(temp.AppendASCII("l_d1"), 0700);
SetPermission(temp.AppendASCII("l_dangling"), 0700);
SetPermission(temp.AppendASCII("l_f2"), 0600);
// Update permissions and check results.
ASSERT_TRUE(updater::SetFilePermissionsRecursive(temp));
CheckPermission(temp, 0755);
CheckPermission(temp.AppendASCII("f1"), 0644);
CheckPermission(temp.AppendASCII("f2"), 0644);
CheckPermission(temp.AppendASCII("f3"), 0755);
CheckPermission(temp.AppendASCII("f4"), 0644);
CheckPermission(temp.AppendASCII("f5"), 0644);
CheckPermission(temp.AppendASCII("f6"), 0755);
CheckPermission(temp.AppendASCII("f7"), 0755);
CheckPermission(temp.AppendASCII("d1"), 0755);
CheckPermission(temp.AppendASCII("d2"), 0755);
CheckPermission(temp.AppendASCII("d2").AppendASCII("f"), 0644);
CheckPermission(temp.AppendASCII("d3"), 0755);
CheckPermission(temp.AppendASCII("d3").AppendASCII("f"), 0644);
CheckPermission(temp.AppendASCII("l_d1"), 0755);
CheckPermission(temp.AppendASCII("l_dangling"), 0755);
CheckPermission(temp.AppendASCII("l_f2"), 0644);
}
TEST(UtilTest, SetFilePermissionsRecursiveTestFile) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
const base::FilePath temp = temp_dir.GetPath();
const base::FilePath file = temp.AppendASCII("f1");
ASSERT_TRUE(base::WriteFile(file, ""));
SetPermission(file, 0600);
ASSERT_TRUE(updater::SetFilePermissionsRecursive(file));
CheckPermission(file, 0644);
}
TEST(UtilTest, SetFilePermissionsRecursiveTestLink) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
const base::FilePath temp = temp_dir.GetPath();
const base::FilePath dir = temp.AppendASCII("d1");
const base::FilePath file = dir.AppendASCII("f1");
const base::FilePath link = temp.AppendASCII("l1");
ASSERT_TRUE(base::CreateDirectory(dir));
ASSERT_TRUE(base::WriteFile(file, ""));
ASSERT_TRUE(base::CreateSymbolicLink(dir, link));
SetPermission(dir, 0700);
SetPermission(file, 0600);
SetPermission(link, 0700);
ASSERT_TRUE(updater::SetFilePermissionsRecursive(link));
CheckPermission(dir, 0700);
CheckPermission(file, 0600);
CheckPermission(link, 0755);
}
} // namespace updater
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