Ben Murdoch | ba5b9a6 | 2013-08-12 14:20:17 +0100 | [diff] [blame] | 1 | // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "chrome/browser/sxs_linux.h" |
| 6 | |
| 7 | #include <vector> |
| 8 | |
Torne (Richard Coles) | 58537e2 | 2013-09-12 12:10:22 +0100 | [diff] [blame] | 9 | #include "base/command_line.h" |
Ben Murdoch | ba5b9a6 | 2013-08-12 14:20:17 +0100 | [diff] [blame] | 10 | #include "base/logging.h" |
| 11 | #include "base/file_util.h" |
| 12 | #include "base/files/file_path.h" |
| 13 | #include "base/files/important_file_writer.h" |
| 14 | #include "base/path_service.h" |
| 15 | #include "base/strings/string_split.h" |
| 16 | #include "base/strings/string_util.h" |
| 17 | #include "chrome/common/chrome_paths.h" |
Torne (Richard Coles) | 58537e2 | 2013-09-12 12:10:22 +0100 | [diff] [blame] | 18 | #include "chrome/common/chrome_result_codes.h" |
| 19 | #include "chrome/common/chrome_switches.h" |
Ben Murdoch | ba5b9a6 | 2013-08-12 14:20:17 +0100 | [diff] [blame] | 20 | #include "chrome/common/chrome_version_info.h" |
| 21 | #include "content/public/browser/browser_thread.h" |
| 22 | |
| 23 | namespace { |
| 24 | |
Torne (Richard Coles) | 58537e2 | 2013-09-12 12:10:22 +0100 | [diff] [blame] | 25 | const char kChannelsFileName[] = "Channels"; |
| 26 | |
| 27 | std::string GetChannelMarkForThisExecutable() { |
Ben Murdoch | ba5b9a6 | 2013-08-12 14:20:17 +0100 | [diff] [blame] | 28 | std::string product_channel_name; |
| 29 | chrome::VersionInfo::Channel product_channel( |
| 30 | chrome::VersionInfo::GetChannel()); |
| 31 | switch (product_channel) { |
| 32 | case chrome::VersionInfo::CHANNEL_UNKNOWN: { |
| 33 | // Add the channel mark even for Chromium builds (which do not have |
| 34 | // channel) to better handle possibility of users using Chromium builds |
| 35 | // with their Google Chrome profiles. Include version string modifier |
| 36 | // as additional piece of information for debugging (it can't make |
| 37 | // a meaningful difference for the code since unknown does not match any |
| 38 | // real channel name). |
| 39 | std::string version_string_modifier( |
| 40 | chrome::VersionInfo::GetVersionStringModifier()); |
| 41 | product_channel_name = "unknown (" + version_string_modifier + ")"; |
| 42 | break; |
| 43 | } |
| 44 | case chrome::VersionInfo::CHANNEL_CANARY: |
| 45 | product_channel_name = "canary"; |
| 46 | break; |
| 47 | case chrome::VersionInfo::CHANNEL_DEV: |
| 48 | product_channel_name = "dev"; |
| 49 | break; |
| 50 | case chrome::VersionInfo::CHANNEL_BETA: |
| 51 | product_channel_name = "beta"; |
| 52 | break; |
| 53 | case chrome::VersionInfo::CHANNEL_STABLE: |
| 54 | product_channel_name = "stable"; |
| 55 | break; |
| 56 | // Rely on -Wswitch compiler warning to detect unhandled enum values. |
| 57 | } |
| 58 | |
Torne (Richard Coles) | 58537e2 | 2013-09-12 12:10:22 +0100 | [diff] [blame] | 59 | return product_channel_name; |
| 60 | } |
| 61 | |
| 62 | bool DoAddChannelMarkToUserDataDir(const base::FilePath& user_data_dir) { |
| 63 | std::string product_channel_name(GetChannelMarkForThisExecutable()); |
| 64 | base::FilePath channels_path(user_data_dir.AppendASCII(kChannelsFileName)); |
Ben Murdoch | ba5b9a6 | 2013-08-12 14:20:17 +0100 | [diff] [blame] | 65 | std::vector<std::string> user_data_dir_channels; |
| 66 | |
| 67 | // Note: failure to read the channels file is not fatal. It's possible |
| 68 | // and legitimate that it doesn't exist, e.g. for new profile or for profile |
| 69 | // existing before channel marks have been introduced. |
| 70 | std::string channels_contents; |
Torne (Richard Coles) | 58537e2 | 2013-09-12 12:10:22 +0100 | [diff] [blame] | 71 | if (base::ReadFileToString(channels_path, &channels_contents)) |
Ben Murdoch | ba5b9a6 | 2013-08-12 14:20:17 +0100 | [diff] [blame] | 72 | base::SplitString(channels_contents, '\n', &user_data_dir_channels); |
| 73 | |
| 74 | if (std::find(user_data_dir_channels.begin(), |
| 75 | user_data_dir_channels.end(), |
| 76 | product_channel_name) != user_data_dir_channels.end()) { |
| 77 | // No need to do further disk writes if our channel mark is already present. |
| 78 | return true; |
| 79 | } |
| 80 | |
| 81 | user_data_dir_channels.push_back(product_channel_name); |
| 82 | return base::ImportantFileWriter::WriteFileAtomically( |
| 83 | channels_path, |
| 84 | JoinString(user_data_dir_channels, "\n")); |
| 85 | } |
| 86 | |
| 87 | } // namespace |
| 88 | |
| 89 | namespace sxs_linux { |
| 90 | |
| 91 | void AddChannelMarkToUserDataDir() { |
| 92 | DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE)); |
| 93 | base::FilePath user_data_dir; |
| 94 | if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) { |
| 95 | LOG(ERROR) << "Failed to get user data dir path. The profile will not be " |
| 96 | << "automatically migrated for updated Linux packages."; |
| 97 | return; |
| 98 | } |
| 99 | |
| 100 | if (!DoAddChannelMarkToUserDataDir(user_data_dir)) { |
| 101 | LOG(ERROR) << "Failed to add channel mark to the user data dir (" |
| 102 | << user_data_dir.value() << "). This profile will not be " |
| 103 | << "automatically migrated for updated Linux packages."; |
| 104 | } |
| 105 | } |
| 106 | |
Torne (Richard Coles) | 58537e2 | 2013-09-12 12:10:22 +0100 | [diff] [blame] | 107 | bool ShouldMigrateUserDataDir() { |
| 108 | return CommandLine::ForCurrentProcess()->HasSwitch( |
| 109 | switches::kMigrateDataDirForSxS); |
| 110 | } |
| 111 | |
| 112 | int MigrateUserDataDir() { |
| 113 | DCHECK(ShouldMigrateUserDataDir()); |
| 114 | |
| 115 | base::FilePath source_path; |
| 116 | if (!PathService::Get(chrome::DIR_USER_DATA, &source_path)) { |
| 117 | LOG(ERROR) << "Failed to get value of chrome::DIR_USER_DATA"; |
| 118 | return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| 119 | } |
| 120 | |
| 121 | base::FilePath channels_path(source_path.AppendASCII(kChannelsFileName)); |
| 122 | |
| 123 | std::string channels_contents; |
| 124 | if (!base::ReadFileToString(channels_path, &channels_contents)) { |
| 125 | LOG(WARNING) << "Failed to read channels file."; |
| 126 | return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| 127 | } |
| 128 | |
| 129 | std::vector<std::string> user_data_dir_channels; |
| 130 | base::SplitString(channels_contents, '\n', &user_data_dir_channels); |
| 131 | |
| 132 | if (user_data_dir_channels.size() != 1) { |
| 133 | LOG(WARNING) << "User data dir migration is only possible when the profile " |
| 134 | << "is only used with a single channel."; |
| 135 | return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| 136 | } |
| 137 | |
| 138 | if (user_data_dir_channels[0] != GetChannelMarkForThisExecutable()) { |
| 139 | LOG(WARNING) << "User data dir migration is only possible when the profile " |
| 140 | << "is used with the same channel."; |
| 141 | return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| 142 | } |
| 143 | |
| 144 | base::FilePath target_path = |
| 145 | CommandLine::ForCurrentProcess()->GetSwitchValuePath( |
| 146 | switches::kMigrateDataDirForSxS); |
| 147 | |
| 148 | if (!base::Move(source_path, target_path)) { |
| 149 | LOG(ERROR) << "Failed to rename '" << source_path.value() |
| 150 | << "' to '" << target_path.value() << "'"; |
| 151 | return chrome::RESULT_CODE_SXS_MIGRATION_FAILED; |
| 152 | } |
| 153 | |
| 154 | return content::RESULT_CODE_NORMAL_EXIT; |
| 155 | } |
| 156 | |
Ben Murdoch | ba5b9a6 | 2013-08-12 14:20:17 +0100 | [diff] [blame] | 157 | } // namespace sxs_linux |