| // Copyright 2013 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 "chrome/browser/sxs_linux.h" |
| |
| #include <vector> |
| |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/file_util.h" |
| #include "base/files/file_path.h" |
| #include "base/files/important_file_writer.h" |
| #include "base/path_service.h" |
| #include "base/strings/string_split.h" |
| #include "base/strings/string_util.h" |
| #include "chrome/common/chrome_paths.h" |
| #include "chrome/common/chrome_result_codes.h" |
| #include "chrome/common/chrome_switches.h" |
| #include "chrome/common/chrome_version_info.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| namespace { |
| |
| const char kChannelsFileName[] = "Channels"; |
| |
| std::string GetChannelMarkForThisExecutable() { |
| std::string product_channel_name; |
| chrome::VersionInfo::Channel product_channel( |
| chrome::VersionInfo::GetChannel()); |
| switch (product_channel) { |
| case chrome::VersionInfo::CHANNEL_UNKNOWN: { |
| // Add the channel mark even for Chromium builds (which do not have |
| // channel) to better handle possibility of users using Chromium builds |
| // with their Google Chrome profiles. Include version string modifier |
| // as additional piece of information for debugging (it can't make |
| // a meaningful difference for the code since unknown does not match any |
| // real channel name). |
| std::string version_string_modifier( |
| chrome::VersionInfo::GetVersionStringModifier()); |
| product_channel_name = "unknown (" + version_string_modifier + ")"; |
| break; |
| } |
| case chrome::VersionInfo::CHANNEL_CANARY: |
| product_channel_name = "canary"; |
| break; |
| case chrome::VersionInfo::CHANNEL_DEV: |
| product_channel_name = "dev"; |
| break; |
| case chrome::VersionInfo::CHANNEL_BETA: |
| product_channel_name = "beta"; |
| break; |
| case chrome::VersionInfo::CHANNEL_STABLE: |
| product_channel_name = "stable"; |
| break; |
| // Rely on -Wswitch compiler warning to detect unhandled enum values. |
| } |
| |
| return product_channel_name; |
| } |
| |
| bool DoAddChannelMarkToUserDataDir(const base::FilePath& user_data_dir) { |
| std::string product_channel_name(GetChannelMarkForThisExecutable()); |
| base::FilePath channels_path(user_data_dir.AppendASCII(kChannelsFileName)); |
| std::vector<std::string> user_data_dir_channels; |
| |
| // Note: failure to read the channels file is not fatal. It's possible |
| // and legitimate that it doesn't exist, e.g. for new profile or for profile |
| // existing before channel marks have been introduced. |
| std::string channels_contents; |
| if (base::ReadFileToString(channels_path, &channels_contents)) |
| base::SplitString(channels_contents, '\n', &user_data_dir_channels); |
| |
| if (std::find(user_data_dir_channels.begin(), |
| user_data_dir_channels.end(), |
| product_channel_name) != user_data_dir_channels.end()) { |
| // No need to do further disk writes if our channel mark is already present. |
| return true; |
| } |
| |
| user_data_dir_channels.push_back(product_channel_name); |
| return base::ImportantFileWriter::WriteFileAtomically( |
| channels_path, |
| JoinString(user_data_dir_channels, "\n")); |
| } |
| |
| } // namespace |
| |
| namespace sxs_linux { |
| |
| void AddChannelMarkToUserDataDir() { |
| DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE)); |
| base::FilePath user_data_dir; |
| if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) { |
| LOG(ERROR) << "Failed to get user data dir path. The profile will not be " |
| << "automatically migrated for updated Linux packages."; |
| return; |
| } |
| |
| if (!DoAddChannelMarkToUserDataDir(user_data_dir)) { |
| LOG(ERROR) << "Failed to add channel mark to the user data dir (" |
| << user_data_dir.value() << "). This profile will not be " |
| << "automatically migrated for updated Linux packages."; |
| } |
| } |
| |
| bool ShouldMigrateUserDataDir() { |
| return CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kMigrateDataDirForSxS); |
| } |
| |
| int MigrateUserDataDir() { |
| DCHECK(ShouldMigrateUserDataDir()); |
| |
| base::FilePath source_path; |
| if (!PathService::Get(chrome::DIR_USER_DATA, &source_path)) { |
| LOG(ERROR) << "Failed to get value of chrome::DIR_USER_DATA"; |
| return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| } |
| |
| base::FilePath channels_path(source_path.AppendASCII(kChannelsFileName)); |
| |
| std::string channels_contents; |
| if (!base::ReadFileToString(channels_path, &channels_contents)) { |
| LOG(WARNING) << "Failed to read channels file."; |
| return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| } |
| |
| std::vector<std::string> user_data_dir_channels; |
| base::SplitString(channels_contents, '\n', &user_data_dir_channels); |
| |
| if (user_data_dir_channels.size() != 1) { |
| LOG(WARNING) << "User data dir migration is only possible when the profile " |
| << "is only used with a single channel."; |
| return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| } |
| |
| if (user_data_dir_channels[0] != GetChannelMarkForThisExecutable()) { |
| LOG(WARNING) << "User data dir migration is only possible when the profile " |
| << "is used with the same channel."; |
| return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| } |
| |
| base::FilePath target_path = |
| CommandLine::ForCurrentProcess()->GetSwitchValuePath( |
| switches::kMigrateDataDirForSxS); |
| |
| if (!base::Move(source_path, target_path)) { |
| LOG(ERROR) << "Failed to rename '" << source_path.value() |
| << "' to '" << target_path.value() << "'"; |
| return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| } |
| |
| return content::RESULT_CODE_NORMAL_EXIT; |
| } |
| |
| } // namespace sxs_linux |