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| 1 // Copyright (c) 2012 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/shell_integration_linux.h" | |
| 6 | |
| 7 #include <fcntl.h> | |
| 8 #include <glib.h> | |
| 9 #include <stdlib.h> | |
| 10 #include <sys/stat.h> | |
| 11 #include <sys/types.h> | |
| 12 #include <unistd.h> | |
| 13 | |
| 14 #include <string> | |
| 15 #include <vector> | |
| 16 | |
| 17 #include "base/base_paths.h" | |
| 18 #include "base/command_line.h" | |
| 19 #include "base/environment.h" | |
| 20 #include "base/file_util.h" | |
| 21 #include "base/files/file_path.h" | |
| 22 #include "base/files/scoped_temp_dir.h" | |
| 23 #include "base/i18n/file_util_icu.h" | |
| 24 #include "base/message_loop.h" | |
| 25 #include "base/path_service.h" | |
| 26 #include "base/posix/eintr_wrapper.h" | |
| 27 #include "base/process_util.h" | |
| 28 #include "base/strings/string_number_conversions.h" | |
| 29 #include "base/strings/string_tokenizer.h" | |
| 30 #include "base/threading/thread.h" | |
| 31 #include "base/threading/thread_restrictions.h" | |
| 32 #include "base/utf_string_conversions.h" | |
| 33 #include "build/build_config.h" | |
| 34 #include "chrome/browser/web_applications/web_app.h" | |
| 35 #include "chrome/common/chrome_constants.h" | |
| 36 #include "content/public/browser/browser_thread.h" | |
| 37 #include "googleurl/src/gurl.h" | |
| 38 #include "ui/gfx/codec/png_codec.h" | |
| 39 #include "ui/gfx/image/image_skia.h" | |
| 40 #include "ui/gfx/image/image_skia_rep.h" | |
| 41 | |
| 42 using content::BrowserThread; | |
| 43 | |
| 44 namespace { | |
| 45 | |
| 46 // Helper to launch xdg scripts. We don't want them to ask any questions on the | |
| 47 // terminal etc. The function returns true if the utility launches and exits | |
| 48 // cleanly, in which case |exit_code| returns the utility's exit code. | |
| 49 bool LaunchXdgUtility(const std::vector<std::string>& argv, int* exit_code) { | |
| 50 // xdg-settings internally runs xdg-mime, which uses mv to move newly-created | |
| 51 // files on top of originals after making changes to them. In the event that | |
| 52 // the original files are owned by another user (e.g. root, which can happen | |
| 53 // if they are updated within sudo), mv will prompt the user to confirm if | |
| 54 // standard input is a terminal (otherwise it just does it). So make sure it's | |
| 55 // not, to avoid locking everything up waiting for mv. | |
| 56 *exit_code = EXIT_FAILURE; | |
| 57 int devnull = open("/dev/null", O_RDONLY); | |
| 58 if (devnull < 0) | |
| 59 return false; | |
| 60 base::FileHandleMappingVector no_stdin; | |
| 61 no_stdin.push_back(std::make_pair(devnull, STDIN_FILENO)); | |
| 62 | |
| 63 base::ProcessHandle handle; | |
| 64 base::LaunchOptions options; | |
| 65 options.fds_to_remap = &no_stdin; | |
| 66 if (!base::LaunchProcess(argv, options, &handle)) { | |
| 67 close(devnull); | |
| 68 return false; | |
| 69 } | |
| 70 close(devnull); | |
| 71 | |
| 72 return base::WaitForExitCode(handle, exit_code); | |
| 73 } | |
| 74 | |
| 75 std::string CreateShortcutIcon( | |
| 76 const ShellIntegration::ShortcutInfo& shortcut_info, | |
| 77 const base::FilePath& shortcut_filename) { | |
| 78 if (shortcut_info.favicon.IsEmpty()) | |
| 79 return std::string(); | |
| 80 | |
| 81 // TODO(phajdan.jr): Report errors from this function, possibly as infobars. | |
| 82 base::ScopedTempDir temp_dir; | |
| 83 if (!temp_dir.CreateUniqueTempDir()) | |
| 84 return std::string(); | |
| 85 | |
| 86 base::FilePath temp_file_path = temp_dir.path().Append( | |
| 87 shortcut_filename.ReplaceExtension("png")); | |
| 88 std::string icon_name = temp_file_path.BaseName().RemoveExtension().value(); | |
| 89 | |
| 90 std::vector<gfx::ImageSkiaRep> image_reps = | |
| 91 shortcut_info.favicon.ToImageSkia()->image_reps(); | |
| 92 for (std::vector<gfx::ImageSkiaRep>::const_iterator it = image_reps.begin(); | |
| 93 it != image_reps.end(); ++it) { | |
| 94 std::vector<unsigned char> png_data; | |
| 95 const SkBitmap& bitmap = it->sk_bitmap(); | |
| 96 if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &png_data)) { | |
| 97 // If the bitmap could not be encoded to PNG format, skip it. | |
| 98 LOG(WARNING) << "Could not encode icon " << icon_name << ".png at size " | |
| 99 << bitmap.width() << "."; | |
| 100 continue; | |
| 101 } | |
| 102 int bytes_written = file_util::WriteFile(temp_file_path, | |
| 103 reinterpret_cast<char*>(png_data.data()), png_data.size()); | |
| 104 | |
| 105 if (bytes_written != static_cast<int>(png_data.size())) | |
| 106 return std::string(); | |
| 107 | |
| 108 std::vector<std::string> argv; | |
| 109 argv.push_back("xdg-icon-resource"); | |
| 110 argv.push_back("install"); | |
| 111 | |
| 112 // Always install in user mode, even if someone runs the browser as root | |
| 113 // (people do that). | |
| 114 argv.push_back("--mode"); | |
| 115 argv.push_back("user"); | |
| 116 | |
| 117 argv.push_back("--size"); | |
| 118 argv.push_back(base::IntToString(bitmap.width())); | |
| 119 | |
| 120 argv.push_back(temp_file_path.value()); | |
| 121 argv.push_back(icon_name); | |
| 122 int exit_code; | |
| 123 if (!LaunchXdgUtility(argv, &exit_code) || exit_code) { | |
| 124 LOG(WARNING) << "Could not install icon " << icon_name << ".png at size " | |
| 125 << bitmap.width() << "."; | |
| 126 } | |
| 127 } | |
| 128 return icon_name; | |
| 129 } | |
| 130 | |
| 131 bool CreateShortcutOnDesktop(const base::FilePath& shortcut_filename, | |
| 132 const std::string& contents) { | |
| 133 // Make sure that we will later call openat in a secure way. | |
| 134 DCHECK_EQ(shortcut_filename.BaseName().value(), shortcut_filename.value()); | |
| 135 | |
| 136 base::FilePath desktop_path; | |
| 137 if (!PathService::Get(base::DIR_USER_DESKTOP, &desktop_path)) | |
| 138 return false; | |
| 139 | |
| 140 int desktop_fd = open(desktop_path.value().c_str(), O_RDONLY | O_DIRECTORY); | |
| 141 if (desktop_fd < 0) | |
| 142 return false; | |
| 143 | |
| 144 int fd = openat(desktop_fd, shortcut_filename.value().c_str(), | |
| 145 O_CREAT | O_EXCL | O_WRONLY, | |
| 146 S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH); | |
| 147 if (fd < 0) { | |
| 148 if (HANDLE_EINTR(close(desktop_fd)) < 0) | |
| 149 PLOG(ERROR) << "close"; | |
| 150 return false; | |
| 151 } | |
| 152 | |
| 153 ssize_t bytes_written = file_util::WriteFileDescriptor(fd, contents.data(), | |
| 154 contents.length()); | |
| 155 if (HANDLE_EINTR(close(fd)) < 0) | |
| 156 PLOG(ERROR) << "close"; | |
| 157 | |
| 158 if (bytes_written != static_cast<ssize_t>(contents.length())) { | |
| 159 // Delete the file. No shortuct is better than corrupted one. Use unlinkat | |
| 160 // to make sure we're deleting the file in the directory we think we are. | |
| 161 // Even if an attacker manager to put something other at | |
| 162 // |shortcut_filename| we'll just undo his action. | |
| 163 unlinkat(desktop_fd, shortcut_filename.value().c_str(), 0); | |
| 164 } | |
| 165 | |
| 166 if (HANDLE_EINTR(close(desktop_fd)) < 0) | |
| 167 PLOG(ERROR) << "close"; | |
| 168 | |
| 169 return true; | |
| 170 } | |
| 171 | |
| 172 void DeleteShortcutOnDesktop(const base::FilePath& shortcut_filename) { | |
| 173 base::FilePath desktop_path; | |
| 174 if (PathService::Get(base::DIR_USER_DESKTOP, &desktop_path)) | |
| 175 file_util::Delete(desktop_path.Append(shortcut_filename), false); | |
| 176 } | |
| 177 | |
| 178 bool CreateShortcutInApplicationsMenu(const base::FilePath& shortcut_filename, | |
| 179 const std::string& contents) { | |
| 180 base::ScopedTempDir temp_dir; | |
| 181 if (!temp_dir.CreateUniqueTempDir()) | |
| 182 return false; | |
| 183 | |
| 184 base::FilePath temp_file_path = temp_dir.path().Append(shortcut_filename); | |
| 185 | |
| 186 int bytes_written = file_util::WriteFile(temp_file_path, contents.data(), | |
| 187 contents.length()); | |
| 188 | |
| 189 if (bytes_written != static_cast<int>(contents.length())) | |
| 190 return false; | |
| 191 | |
| 192 std::vector<std::string> argv; | |
| 193 argv.push_back("xdg-desktop-menu"); | |
| 194 argv.push_back("install"); | |
| 195 | |
| 196 // Always install in user mode, even if someone runs the browser as root | |
| 197 // (people do that). | |
| 198 argv.push_back("--mode"); | |
| 199 argv.push_back("user"); | |
| 200 | |
| 201 argv.push_back(temp_file_path.value()); | |
| 202 int exit_code; | |
| 203 LaunchXdgUtility(argv, &exit_code); | |
| 204 return exit_code == 0; | |
| 205 } | |
| 206 | |
| 207 void DeleteShortcutInApplicationsMenu(const base::FilePath& shortcut_filename) { | |
| 208 std::vector<std::string> argv; | |
| 209 argv.push_back("xdg-desktop-menu"); | |
| 210 argv.push_back("uninstall"); | |
| 211 | |
| 212 // Uninstall in user mode, to match the install. | |
| 213 argv.push_back("--mode"); | |
| 214 argv.push_back("user"); | |
| 215 | |
| 216 // The file does not need to exist anywhere - xdg-desktop-menu will uninstall | |
| 217 // items from the menu with a matching name. | |
| 218 argv.push_back(shortcut_filename.value()); | |
| 219 int exit_code; | |
| 220 LaunchXdgUtility(argv, &exit_code); | |
| 221 } | |
| 222 | |
| 223 // Quote a string such that it appears as one verbatim argument for the Exec | |
| 224 // key in a desktop file. | |
| 225 std::string QuoteArgForDesktopFileExec(const std::string& arg) { | |
| 226 // http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s06.html | |
| 227 | |
| 228 // Quoting is only necessary if the argument has a reserved character. | |
| 229 if (arg.find_first_of(" \t\n\"'\\><~|&;$*?#()`") == std::string::npos) | |
| 230 return arg; // No quoting necessary. | |
| 231 | |
| 232 std::string quoted = "\""; | |
| 233 for (size_t i = 0; i < arg.size(); ++i) { | |
| 234 // Note that the set of backslashed characters is smaller than the | |
| 235 // set of reserved characters. | |
| 236 switch (arg[i]) { | |
| 237 case '"': | |
| 238 case '`': | |
| 239 case '$': | |
| 240 case '\\': | |
| 241 quoted += '\\'; | |
| 242 break; | |
| 243 } | |
| 244 quoted += arg[i]; | |
| 245 } | |
| 246 quoted += '"'; | |
| 247 | |
| 248 return quoted; | |
| 249 } | |
| 250 | |
| 251 // Remove keys from the [Desktop Entry] that would be wrong if copied verbatim | |
| 252 // into the new .desktop file. | |
| 253 const char* kDesktopKeysToDelete[] = { | |
| 254 "GenericName", | |
| 255 "Comment", | |
| 256 "MimeType", | |
| 257 "X-Ayatana-Desktop-Shortcuts", | |
| 258 "StartupWMClass", | |
| 259 NULL | |
| 260 }; | |
| 261 | |
| 262 const char kDesktopEntry[] = "Desktop Entry"; | |
| 263 | |
| 264 const char kXdgOpenShebang[] = "#!/usr/bin/env xdg-open"; | |
| 265 | |
| 266 const char kXdgSettings[] = "xdg-settings"; | |
| 267 const char kXdgSettingsDefaultBrowser[] = "default-web-browser"; | |
| 268 const char kXdgSettingsDefaultSchemeHandler[] = "default-url-scheme-handler"; | |
| 269 | |
| 270 // Regex to match a localized key name such as "Name[en_AU]". | |
| 271 const char kLocalizedKeyRegex[] = "^[A-Za-z0-9\\-]+\\[[^\\]]*\\]$"; | |
| 272 | |
| 273 } // namespace | |
| 274 | |
| 275 namespace { | |
| 276 | |
| 277 // Utility function to get the path to the version of a script shipped with | |
| 278 // Chrome. |script| gives the name of the script. |chrome_version| returns the | |
| 279 // path to the Chrome version of the script, and the return value of the | |
| 280 // function is true if the function is successful and the Chrome version is | |
| 281 // not the script found on the PATH. | |
| 282 bool GetChromeVersionOfScript(const std::string& script, | |
| 283 std::string* chrome_version) { | |
| 284 // Get the path to the Chrome version. | |
| 285 base::FilePath chrome_dir; | |
| 286 if (!PathService::Get(base::DIR_EXE, &chrome_dir)) | |
| 287 return false; | |
| 288 | |
| 289 base::FilePath chrome_version_path = chrome_dir.Append(script); | |
| 290 *chrome_version = chrome_version_path.value(); | |
| 291 | |
| 292 // Check if this is different to the one on path. | |
| 293 std::vector<std::string> argv; | |
| 294 argv.push_back("which"); | |
| 295 argv.push_back(script); | |
| 296 std::string path_version; | |
| 297 if (base::GetAppOutput(CommandLine(argv), &path_version)) { | |
| 298 // Remove trailing newline | |
| 299 path_version.erase(path_version.length() - 1, 1); | |
| 300 base::FilePath path_version_path(path_version); | |
| 301 return (chrome_version_path != path_version_path); | |
| 302 } | |
| 303 return false; | |
| 304 } | |
| 305 | |
| 306 // Value returned by xdg-settings if it can't understand our request. | |
| 307 const int EXIT_XDG_SETTINGS_SYNTAX_ERROR = 1; | |
| 308 | |
| 309 // We delegate the difficulty of setting the default browser and default url | |
| 310 // scheme handler in Linux desktop environments to an xdg utility, xdg-settings. | |
| 311 | |
| 312 // When calling this script we first try to use the script on PATH. If that | |
| 313 // fails we then try to use the script that we have included. This gives | |
| 314 // scripts on the system priority over ours, as distribution vendors may have | |
| 315 // tweaked the script, but still allows our copy to be used if the script on the | |
| 316 // system fails, as the system copy may be missing capabilities of the Chrome | |
| 317 // copy. | |
| 318 | |
| 319 // If |protocol| is empty this function sets Chrome as the default browser, | |
| 320 // otherwise it sets Chrome as the default handler application for |protocol|. | |
| 321 bool SetDefaultWebClient(const std::string& protocol) { | |
| 322 #if defined(OS_CHROMEOS) | |
| 323 return true; | |
| 324 #else | |
| 325 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); | |
| 326 | |
| 327 scoped_ptr<base::Environment> env(base::Environment::Create()); | |
| 328 | |
| 329 std::vector<std::string> argv; | |
| 330 argv.push_back(kXdgSettings); | |
| 331 argv.push_back("set"); | |
| 332 if (protocol.empty()) { | |
| 333 argv.push_back(kXdgSettingsDefaultBrowser); | |
| 334 } else { | |
| 335 argv.push_back(kXdgSettingsDefaultSchemeHandler); | |
| 336 argv.push_back(protocol); | |
| 337 } | |
| 338 argv.push_back(ShellIntegrationLinux::GetDesktopName(env.get())); | |
| 339 | |
| 340 int exit_code; | |
| 341 bool ran_ok = LaunchXdgUtility(argv, &exit_code); | |
| 342 if (ran_ok && exit_code == EXIT_XDG_SETTINGS_SYNTAX_ERROR) { | |
| 343 if (GetChromeVersionOfScript(kXdgSettings, &argv[0])) { | |
| 344 ran_ok = LaunchXdgUtility(argv, &exit_code); | |
| 345 } | |
| 346 } | |
| 347 | |
| 348 return ran_ok && exit_code == EXIT_SUCCESS; | |
| 349 #endif | |
| 350 } | |
| 351 | |
| 352 // If |protocol| is empty this function checks if Chrome is the default browser, | |
| 353 // otherwise it checks if Chrome is the default handler application for | |
| 354 // |protocol|. | |
| 355 ShellIntegration::DefaultWebClientState GetIsDefaultWebClient( | |
| 356 const std::string& protocol) { | |
| 357 #if defined(OS_CHROMEOS) | |
| 358 return ShellIntegration::IS_DEFAULT; | |
| 359 #else | |
| 360 base::ThreadRestrictions::AssertIOAllowed(); | |
| 361 | |
| 362 scoped_ptr<base::Environment> env(base::Environment::Create()); | |
| 363 | |
| 364 std::vector<std::string> argv; | |
| 365 argv.push_back(kXdgSettings); | |
| 366 argv.push_back("check"); | |
| 367 if (protocol.empty()) { | |
| 368 argv.push_back(kXdgSettingsDefaultBrowser); | |
| 369 } else { | |
| 370 argv.push_back(kXdgSettingsDefaultSchemeHandler); | |
| 371 argv.push_back(protocol); | |
| 372 } | |
| 373 argv.push_back(ShellIntegrationLinux::GetDesktopName(env.get())); | |
| 374 | |
| 375 std::string reply; | |
| 376 int success_code; | |
| 377 bool ran_ok = base::GetAppOutputWithExitCode(CommandLine(argv), &reply, | |
| 378 &success_code); | |
| 379 if (ran_ok && success_code == EXIT_XDG_SETTINGS_SYNTAX_ERROR) { | |
| 380 if (GetChromeVersionOfScript(kXdgSettings, &argv[0])) { | |
| 381 ran_ok = base::GetAppOutputWithExitCode(CommandLine(argv), &reply, | |
| 382 &success_code); | |
| 383 } | |
| 384 } | |
| 385 | |
| 386 if (!ran_ok || success_code != EXIT_SUCCESS) { | |
| 387 // xdg-settings failed: we can't determine or set the default browser. | |
| 388 return ShellIntegration::UNKNOWN_DEFAULT; | |
| 389 } | |
| 390 | |
| 391 // Allow any reply that starts with "yes". | |
| 392 return (reply.find("yes") == 0) ? ShellIntegration::IS_DEFAULT : | |
| 393 ShellIntegration::NOT_DEFAULT; | |
| 394 #endif | |
| 395 } | |
| 396 | |
| 397 } // namespace | |
| 398 | |
| 399 // static | |
| 400 ShellIntegration::DefaultWebClientSetPermission | |
| 401 ShellIntegration::CanSetAsDefaultBrowser() { | |
| 402 return SET_DEFAULT_UNATTENDED; | |
| 403 } | |
| 404 | |
| 405 // static | |
| 406 bool ShellIntegration::SetAsDefaultBrowser() { | |
| 407 return SetDefaultWebClient(""); | |
| 408 } | |
| 409 | |
| 410 // static | |
| 411 bool ShellIntegration::SetAsDefaultProtocolClient(const std::string& protocol) { | |
| 412 return SetDefaultWebClient(protocol); | |
| 413 } | |
| 414 | |
| 415 // static | |
| 416 ShellIntegration::DefaultWebClientState ShellIntegration::GetDefaultBrowser() { | |
| 417 return GetIsDefaultWebClient(""); | |
| 418 } | |
| 419 | |
| 420 // static | |
| 421 std::string ShellIntegration::GetApplicationForProtocol(const GURL& url) { | |
| 422 return std::string("xdg-open"); | |
| 423 } | |
| 424 | |
| 425 // static | |
| 426 ShellIntegration::DefaultWebClientState | |
| 427 ShellIntegration::IsDefaultProtocolClient(const std::string& protocol) { | |
| 428 return GetIsDefaultWebClient(protocol); | |
| 429 } | |
| 430 | |
| 431 // static | |
| 432 bool ShellIntegration::IsFirefoxDefaultBrowser() { | |
| 433 std::vector<std::string> argv; | |
| 434 argv.push_back(kXdgSettings); | |
| 435 argv.push_back("get"); | |
| 436 argv.push_back(kXdgSettingsDefaultBrowser); | |
| 437 | |
| 438 std::string browser; | |
| 439 // We don't care about the return value here. | |
| 440 base::GetAppOutput(CommandLine(argv), &browser); | |
| 441 return browser.find("irefox") != std::string::npos; | |
| 442 } | |
| 443 | |
| 444 namespace ShellIntegrationLinux { | |
| 445 | |
| 446 std::string GetDesktopName(base::Environment* env) { | |
| 447 #if defined(GOOGLE_CHROME_BUILD) | |
| 448 return "google-chrome.desktop"; | |
| 449 #else // CHROMIUM_BUILD | |
| 450 // Allow $CHROME_DESKTOP to override the built-in value, so that development | |
| 451 // versions can set themselves as the default without interfering with | |
| 452 // non-official, packaged versions using the built-in value. | |
| 453 std::string name; | |
| 454 if (env->GetVar("CHROME_DESKTOP", &name) && !name.empty()) | |
| 455 return name; | |
| 456 return "chromium-browser.desktop"; | |
| 457 #endif | |
| 458 } | |
| 459 | |
| 460 bool GetDesktopShortcutTemplate(base::Environment* env, | |
| 461 std::string* output) { | |
| 462 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); | |
| 463 | |
| 464 std::vector<base::FilePath> search_paths; | |
| 465 | |
| 466 std::string xdg_data_home; | |
| 467 if (env->GetVar("XDG_DATA_HOME", &xdg_data_home) && | |
| 468 !xdg_data_home.empty()) { | |
| 469 search_paths.push_back(base::FilePath(xdg_data_home)); | |
| 470 } | |
| 471 | |
| 472 std::string xdg_data_dirs; | |
| 473 if (env->GetVar("XDG_DATA_DIRS", &xdg_data_dirs) && | |
| 474 !xdg_data_dirs.empty()) { | |
| 475 base::StringTokenizer tokenizer(xdg_data_dirs, ":"); | |
| 476 while (tokenizer.GetNext()) { | |
| 477 base::FilePath data_dir(tokenizer.token()); | |
| 478 search_paths.push_back(data_dir); | |
| 479 search_paths.push_back(data_dir.Append("applications")); | |
| 480 } | |
| 481 } | |
| 482 | |
| 483 // Add some fallback paths for systems which don't have XDG_DATA_DIRS or have | |
| 484 // it incomplete. | |
| 485 search_paths.push_back(base::FilePath("/usr/share/applications")); | |
| 486 search_paths.push_back(base::FilePath("/usr/local/share/applications")); | |
| 487 | |
| 488 std::string template_filename(GetDesktopName(env)); | |
| 489 for (std::vector<base::FilePath>::const_iterator i = search_paths.begin(); | |
| 490 i != search_paths.end(); ++i) { | |
| 491 base::FilePath path = i->Append(template_filename); | |
| 492 VLOG(1) << "Looking for desktop file template in " << path.value(); | |
| 493 if (file_util::PathExists(path)) { | |
| 494 VLOG(1) << "Found desktop file template at " << path.value(); | |
| 495 return file_util::ReadFileToString(path, output); | |
| 496 } | |
| 497 } | |
| 498 | |
| 499 LOG(ERROR) << "Could not find desktop file template."; | |
| 500 return false; | |
| 501 } | |
| 502 | |
| 503 base::FilePath GetWebShortcutFilename(const GURL& url) { | |
| 504 // Use a prefix, because xdg-desktop-menu requires it. | |
| 505 std::string filename = | |
| 506 std::string(chrome::kBrowserProcessExecutableName) + "-" + url.spec(); | |
| 507 file_util::ReplaceIllegalCharactersInPath(&filename, '_'); | |
| 508 | |
| 509 base::FilePath desktop_path; | |
| 510 if (!PathService::Get(base::DIR_USER_DESKTOP, &desktop_path)) | |
| 511 return base::FilePath(); | |
| 512 | |
| 513 base::FilePath filepath = desktop_path.Append(filename); | |
| 514 base::FilePath alternative_filepath(filepath.value() + ".desktop"); | |
| 515 for (size_t i = 1; i < 100; ++i) { | |
| 516 if (file_util::PathExists(base::FilePath(alternative_filepath))) { | |
| 517 alternative_filepath = base::FilePath( | |
| 518 filepath.value() + "_" + base::IntToString(i) + ".desktop"); | |
| 519 } else { | |
| 520 return base::FilePath(alternative_filepath).BaseName(); | |
| 521 } | |
| 522 } | |
| 523 | |
| 524 return base::FilePath(); | |
| 525 } | |
| 526 | |
| 527 base::FilePath GetExtensionShortcutFilename(const base::FilePath& profile_path, | |
| 528 const std::string& extension_id) { | |
| 529 DCHECK(!extension_id.empty()); | |
| 530 | |
| 531 // Use a prefix, because xdg-desktop-menu requires it. | |
| 532 std::string filename(chrome::kBrowserProcessExecutableName); | |
| 533 filename.append("-") | |
| 534 .append(extension_id) | |
| 535 .append("-") | |
| 536 .append(profile_path.BaseName().value()); | |
| 537 file_util::ReplaceIllegalCharactersInPath(&filename, '_'); | |
| 538 return base::FilePath(filename.append(".desktop")); | |
| 539 } | |
| 540 | |
| 541 std::string GetDesktopFileContents( | |
| 542 const std::string& template_contents, | |
| 543 const std::string& app_name, | |
| 544 const GURL& url, | |
| 545 const std::string& extension_id, | |
| 546 const base::FilePath& extension_path, | |
| 547 const string16& title, | |
| 548 const std::string& icon_name, | |
| 549 const base::FilePath& profile_path) { | |
| 550 // Although not required by the spec, Nautilus on Ubuntu Karmic creates its | |
| 551 // launchers with an xdg-open shebang. Follow that convention. | |
| 552 std::string output_buffer = std::string(kXdgOpenShebang) + "\n"; | |
| 553 if (template_contents.empty()) | |
| 554 return output_buffer; | |
| 555 | |
| 556 // See http://standards.freedesktop.org/desktop-entry-spec/latest/ | |
| 557 // http://developer.gnome.org/glib/unstable/glib-Key-value-file-parser.html | |
| 558 GKeyFile* key_file = g_key_file_new(); | |
| 559 GError* err = NULL; | |
| 560 // Loading the data will strip translations and comments from the desktop | |
| 561 // file (which we want to do!) | |
| 562 if (!g_key_file_load_from_data( | |
| 563 key_file, | |
| 564 template_contents.c_str(), | |
| 565 template_contents.size(), | |
| 566 G_KEY_FILE_NONE, | |
| 567 &err)) { | |
| 568 NOTREACHED() << "Unable to read desktop file template:" << err->message; | |
| 569 g_error_free(err); | |
| 570 return output_buffer; | |
| 571 } | |
| 572 | |
| 573 // Remove all sections except for the Desktop Entry | |
| 574 gsize length = 0; | |
| 575 gchar** groups = g_key_file_get_groups(key_file, &length); | |
| 576 for (gsize i = 0; i < length; ++i) { | |
| 577 if (strcmp(groups[i], kDesktopEntry) != 0) { | |
| 578 g_key_file_remove_group(key_file, groups[i], NULL); | |
| 579 } | |
| 580 } | |
| 581 g_strfreev(groups); | |
| 582 | |
| 583 // Remove keys that we won't need. | |
| 584 for (const char** current_key = kDesktopKeysToDelete; *current_key; | |
| 585 ++current_key) { | |
| 586 g_key_file_remove_key(key_file, kDesktopEntry, *current_key, NULL); | |
| 587 } | |
| 588 // Remove all localized keys. | |
| 589 GRegex* localized_key_regex = g_regex_new(kLocalizedKeyRegex, | |
| 590 static_cast<GRegexCompileFlags>(0), | |
| 591 static_cast<GRegexMatchFlags>(0), | |
| 592 NULL); | |
| 593 gchar** keys = g_key_file_get_keys(key_file, kDesktopEntry, NULL, NULL); | |
| 594 for (gchar** keys_ptr = keys; *keys_ptr; ++keys_ptr) { | |
| 595 if (g_regex_match(localized_key_regex, *keys_ptr, | |
| 596 static_cast<GRegexMatchFlags>(0), NULL)) { | |
| 597 g_key_file_remove_key(key_file, kDesktopEntry, *keys_ptr, NULL); | |
| 598 } | |
| 599 } | |
| 600 g_strfreev(keys); | |
| 601 g_regex_unref(localized_key_regex); | |
| 602 | |
| 603 // Set the "Name" key. | |
| 604 std::string final_title = UTF16ToUTF8(title); | |
| 605 // Make sure no endline characters can slip in and possibly introduce | |
| 606 // additional lines (like Exec, which makes it a security risk). Also | |
| 607 // use the URL as a default when the title is empty. | |
| 608 if (final_title.empty() || | |
| 609 final_title.find("\n") != std::string::npos || | |
| 610 final_title.find("\r") != std::string::npos) { | |
| 611 final_title = url.spec(); | |
| 612 } | |
| 613 g_key_file_set_string(key_file, kDesktopEntry, "Name", final_title.c_str()); | |
| 614 | |
| 615 // Set the "Exec" key. | |
| 616 char* exec_c_string = g_key_file_get_string(key_file, kDesktopEntry, "Exec", | |
| 617 NULL); | |
| 618 if (exec_c_string) { | |
| 619 std::string exec_string(exec_c_string); | |
| 620 g_free(exec_c_string); | |
| 621 base::StringTokenizer exec_tokenizer(exec_string, " "); | |
| 622 | |
| 623 std::string final_path; | |
| 624 while (exec_tokenizer.GetNext() && exec_tokenizer.token() != "%U") { | |
| 625 if (!final_path.empty()) | |
| 626 final_path += " "; | |
| 627 final_path += exec_tokenizer.token(); | |
| 628 } | |
| 629 CommandLine cmd_line(CommandLine::NO_PROGRAM); | |
| 630 cmd_line = ShellIntegration::CommandLineArgsForLauncher( | |
| 631 url, extension_id, profile_path); | |
| 632 const CommandLine::SwitchMap& switch_map = cmd_line.GetSwitches(); | |
| 633 for (CommandLine::SwitchMap::const_iterator i = switch_map.begin(); | |
| 634 i != switch_map.end(); ++i) { | |
| 635 if (i->second.empty()) { | |
| 636 final_path += " --" + i->first; | |
| 637 } else { | |
| 638 final_path += " " + QuoteArgForDesktopFileExec("--" + i->first + | |
| 639 "=" + i->second); | |
| 640 } | |
| 641 } | |
| 642 | |
| 643 g_key_file_set_string(key_file, kDesktopEntry, "Exec", final_path.c_str()); | |
| 644 } | |
| 645 | |
| 646 // Set the "Icon" key. | |
| 647 if (!icon_name.empty()) | |
| 648 g_key_file_set_string(key_file, kDesktopEntry, "Icon", icon_name.c_str()); | |
| 649 | |
| 650 #if defined(TOOLKIT_GTK) | |
| 651 std::string wmclass = web_app::GetWMClassFromAppName(app_name); | |
| 652 g_key_file_set_string(key_file, kDesktopEntry, "StartupWMClass", | |
| 653 wmclass.c_str()); | |
| 654 #endif | |
| 655 | |
| 656 length = 0; | |
| 657 gchar* data_dump = g_key_file_to_data(key_file, &length, NULL); | |
| 658 if (data_dump) { | |
| 659 // If strlen(data_dump[0]) == 0, this check will fail. | |
| 660 if (data_dump[0] == '\n') { | |
| 661 // Older versions of glib produce a leading newline. If this is the case, | |
| 662 // remove it to avoid double-newline after the shebang. | |
| 663 output_buffer += (data_dump + 1); | |
| 664 } else { | |
| 665 output_buffer += data_dump; | |
| 666 } | |
| 667 g_free(data_dump); | |
| 668 } | |
| 669 | |
| 670 g_key_file_free(key_file); | |
| 671 return output_buffer; | |
| 672 } | |
| 673 | |
| 674 bool CreateDesktopShortcut( | |
| 675 const ShellIntegration::ShortcutInfo& shortcut_info, | |
| 676 const std::string& shortcut_template) { | |
| 677 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); | |
| 678 | |
| 679 base::FilePath shortcut_filename; | |
| 680 if (!shortcut_info.extension_id.empty()) { | |
| 681 shortcut_filename = GetExtensionShortcutFilename( | |
| 682 shortcut_info.profile_path, shortcut_info.extension_id); | |
| 683 // For extensions we do not want duplicate shortcuts. So, delete any that | |
| 684 // already exist and replace them. | |
| 685 if (shortcut_info.create_on_desktop) | |
| 686 DeleteShortcutOnDesktop(shortcut_filename); | |
| 687 if (shortcut_info.create_in_applications_menu) | |
| 688 DeleteShortcutInApplicationsMenu(shortcut_filename); | |
| 689 } else { | |
| 690 shortcut_filename = GetWebShortcutFilename(shortcut_info.url); | |
| 691 } | |
| 692 if (shortcut_filename.empty()) | |
| 693 return false; | |
| 694 | |
| 695 std::string icon_name = CreateShortcutIcon(shortcut_info, shortcut_filename); | |
| 696 | |
| 697 std::string app_name = | |
| 698 web_app::GenerateApplicationNameFromInfo(shortcut_info); | |
| 699 std::string contents = ShellIntegrationLinux::GetDesktopFileContents( | |
| 700 shortcut_template, | |
| 701 app_name, | |
| 702 shortcut_info.url, | |
| 703 shortcut_info.extension_id, | |
| 704 shortcut_info.extension_path, | |
| 705 shortcut_info.title, | |
| 706 icon_name, | |
| 707 shortcut_info.profile_path); | |
| 708 | |
| 709 bool success = true; | |
| 710 | |
| 711 if (shortcut_info.create_on_desktop) | |
| 712 success = CreateShortcutOnDesktop(shortcut_filename, contents); | |
| 713 | |
| 714 if (shortcut_info.create_in_applications_menu) | |
| 715 success = CreateShortcutInApplicationsMenu(shortcut_filename, contents) && | |
| 716 success; | |
| 717 | |
| 718 return success; | |
| 719 } | |
| 720 | |
| 721 void DeleteDesktopShortcuts(const base::FilePath& profile_path, | |
| 722 const std::string& extension_id) { | |
| 723 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); | |
| 724 | |
| 725 base::FilePath shortcut_filename = GetExtensionShortcutFilename( | |
| 726 profile_path, extension_id); | |
| 727 DCHECK(!shortcut_filename.empty()); | |
| 728 | |
| 729 DeleteShortcutOnDesktop(shortcut_filename); | |
| 730 DeleteShortcutInApplicationsMenu(shortcut_filename); | |
| 731 } | |
| 732 | |
| 733 } // namespace ShellIntegrationLinux | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 12321107:
Move shell integration code from chrome/browser to apps (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src