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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/installer/setup/install.h"
      6 
      7 #include <windows.h>
      8 #include <shlobj.h>
      9 #include <time.h>
     10 
     11 #include <string>
     12 
     13 #include "base/command_line.h"
     14 #include "base/file_util.h"
     15 #include "base/files/file_path.h"
     16 #include "base/logging.h"
     17 #include "base/memory/scoped_ptr.h"
     18 #include "base/numerics/safe_conversions.h"
     19 #include "base/path_service.h"
     20 #include "base/process/launch.h"
     21 #include "base/strings/string_util.h"
     22 #include "base/strings/stringprintf.h"
     23 #include "base/strings/utf_string_conversions.h"
     24 #include "base/win/shortcut.h"
     25 #include "base/win/windows_version.h"
     26 #include "chrome/common/chrome_constants.h"
     27 #include "chrome/common/chrome_switches.h"
     28 #include "chrome/installer/launcher_support/chrome_launcher_support.h"
     29 #include "chrome/installer/setup/install_worker.h"
     30 #include "chrome/installer/setup/setup_constants.h"
     31 #include "chrome/installer/util/auto_launch_util.h"
     32 #include "chrome/installer/util/browser_distribution.h"
     33 #include "chrome/installer/util/create_reg_key_work_item.h"
     34 #include "chrome/installer/util/delete_after_reboot_helper.h"
     35 #include "chrome/installer/util/google_update_constants.h"
     36 #include "chrome/installer/util/helper.h"
     37 #include "chrome/installer/util/install_util.h"
     38 #include "chrome/installer/util/master_preferences.h"
     39 #include "chrome/installer/util/master_preferences_constants.h"
     40 #include "chrome/installer/util/set_reg_value_work_item.h"
     41 #include "chrome/installer/util/shell_util.h"
     42 #include "chrome/installer/util/util_constants.h"
     43 #include "chrome/installer/util/work_item_list.h"
     44 
     45 
     46 namespace {
     47 
     48 void LogShortcutOperation(ShellUtil::ShortcutLocation location,
     49                           BrowserDistribution* dist,
     50                           const ShellUtil::ShortcutProperties& properties,
     51                           ShellUtil::ShortcutOperation operation,
     52                           bool failed) {
     53   // ShellUtil::SHELL_SHORTCUT_UPDATE_EXISTING should not be used at install and
     54   // thus this method does not handle logging a message for it.
     55   DCHECK(operation != ShellUtil::SHELL_SHORTCUT_UPDATE_EXISTING);
     56   std::string message;
     57   if (failed)
     58     message.append("Failed: ");
     59   message.append(
     60       (operation == ShellUtil::SHELL_SHORTCUT_CREATE_ALWAYS ||
     61        operation == ShellUtil::SHELL_SHORTCUT_CREATE_IF_NO_SYSTEM_LEVEL) ?
     62       "Creating " : "Overwriting ");
     63   if (failed && operation == ShellUtil::SHELL_SHORTCUT_REPLACE_EXISTING)
     64     message.append("(maybe the shortcut doesn't exist?) ");
     65   message.append((properties.level == ShellUtil::CURRENT_USER) ? "per-user " :
     66                                                                  "all-users ");
     67   switch (location) {
     68     case ShellUtil::SHORTCUT_LOCATION_DESKTOP:
     69       message.append("Desktop ");
     70       break;
     71     case ShellUtil::SHORTCUT_LOCATION_QUICK_LAUNCH:
     72       message.append("Quick Launch ");
     73       break;
     74     case ShellUtil::SHORTCUT_LOCATION_START_MENU_CHROME_DIR:
     75       message.append("Start menu/" +
     76                      base::UTF16ToUTF8(dist->GetStartMenuShortcutSubfolder(
     77                                      BrowserDistribution::SUBFOLDER_CHROME)) +
     78                       " ");
     79       break;
     80     case ShellUtil::SHORTCUT_LOCATION_START_MENU_CHROME_APPS_DIR:
     81       message.append("Start menu/" +
     82                      base::UTF16ToUTF8(dist->GetStartMenuShortcutSubfolder(
     83                                      BrowserDistribution::SUBFOLDER_APPS)) +
     84                      " ");
     85       break;
     86     default:
     87       NOTREACHED();
     88   }
     89 
     90   message.push_back('"');
     91   if (properties.has_shortcut_name())
     92     message.append(base::UTF16ToUTF8(properties.shortcut_name));
     93   else
     94     message.append(base::UTF16ToUTF8(dist->GetDisplayName()));
     95   message.push_back('"');
     96 
     97   message.append(" shortcut to ");
     98   message.append(base::UTF16ToUTF8(properties.target.value()));
     99   if (properties.has_arguments())
    100     message.append(base::UTF16ToUTF8(properties.arguments));
    101 
    102   if (properties.pin_to_taskbar &&
    103       base::win::GetVersion() >= base::win::VERSION_WIN7) {
    104     message.append(" and pinning to the taskbar.");
    105   } else {
    106     message.push_back('.');
    107   }
    108 
    109   if (failed)
    110     LOG(WARNING) << message;
    111   else
    112     VLOG(1) << message;
    113 }
    114 
    115 void ExecuteAndLogShortcutOperation(
    116     ShellUtil::ShortcutLocation location,
    117     BrowserDistribution* dist,
    118     const ShellUtil::ShortcutProperties& properties,
    119     ShellUtil::ShortcutOperation operation) {
    120   LogShortcutOperation(location, dist, properties, operation, false);
    121   if (!ShellUtil::CreateOrUpdateShortcut(location, dist, properties,
    122                                          operation)) {
    123     LogShortcutOperation(location, dist, properties, operation, true);
    124   }
    125 }
    126 
    127 void AddChromeToMediaPlayerList() {
    128   base::string16 reg_path(installer::kMediaPlayerRegPath);
    129   // registry paths can also be appended like file system path
    130   reg_path.push_back(base::FilePath::kSeparators[0]);
    131   reg_path.append(installer::kChromeExe);
    132   VLOG(1) << "Adding Chrome to Media player list at " << reg_path;
    133   scoped_ptr<WorkItem> work_item(WorkItem::CreateCreateRegKeyWorkItem(
    134       HKEY_LOCAL_MACHINE, reg_path, WorkItem::kWow64Default));
    135 
    136   // if the operation fails we log the error but still continue
    137   if (!work_item.get()->Do())
    138     LOG(ERROR) << "Could not add Chrome to media player inclusion list.";
    139 }
    140 
    141 // Copy master_preferences file provided to installer, in the same folder
    142 // as chrome.exe so Chrome first run can find it. This function will be called
    143 // only on the first install of Chrome.
    144 void CopyPreferenceFileForFirstRun(
    145     const installer::InstallerState& installer_state,
    146     const base::FilePath& prefs_source_path) {
    147   base::FilePath prefs_dest_path(installer_state.target_path().AppendASCII(
    148       installer::kDefaultMasterPrefs));
    149   if (!base::CopyFile(prefs_source_path, prefs_dest_path)) {
    150     VLOG(1) << "Failed to copy master preferences from:"
    151             << prefs_source_path.value() << " gle: " << ::GetLastError();
    152   }
    153 }
    154 
    155 // This function installs a new version of Chrome to the specified location.
    156 //
    157 // setup_path: Path to the executable (setup.exe) as it will be copied
    158 //           to Chrome install folder after install is complete
    159 // archive_path: Path to the archive (chrome.7z) as it will be copied
    160 //               to Chrome install folder after install is complete
    161 // src_path: the path that contains a complete and unpacked Chrome package
    162 //           to be installed.
    163 // temp_path: the path of working directory used during installation. This path
    164 //            does not need to exist.
    165 // new_version: new Chrome version that needs to be installed
    166 // current_version: returns the current active version (if any)
    167 //
    168 // This function makes best effort to do installation in a transactional
    169 // manner. If failed it tries to rollback all changes on the file system
    170 // and registry. For example, if package exists before calling the
    171 // function, it rolls back all new file and directory changes under
    172 // package. If package does not exist before calling the function
    173 // (typical new install), the function creates package during install
    174 // and removes the whole directory during rollback.
    175 installer::InstallStatus InstallNewVersion(
    176     const installer::InstallationState& original_state,
    177     const installer::InstallerState& installer_state,
    178     const base::FilePath& setup_path,
    179     const base::FilePath& archive_path,
    180     const base::FilePath& src_path,
    181     const base::FilePath& temp_path,
    182     const Version& new_version,
    183     scoped_ptr<Version>* current_version) {
    184   DCHECK(current_version);
    185 
    186   installer_state.UpdateStage(installer::BUILDING);
    187 
    188   current_version->reset(installer_state.GetCurrentVersion(original_state));
    189   scoped_ptr<WorkItemList> install_list(WorkItem::CreateWorkItemList());
    190 
    191   AddInstallWorkItems(original_state,
    192                       installer_state,
    193                       setup_path,
    194                       archive_path,
    195                       src_path,
    196                       temp_path,
    197                       current_version->get(),
    198                       new_version,
    199                       install_list.get());
    200 
    201   base::FilePath new_chrome_exe(
    202       installer_state.target_path().Append(installer::kChromeNewExe));
    203 
    204   installer_state.UpdateStage(installer::EXECUTING);
    205 
    206   if (!install_list->Do()) {
    207     installer_state.UpdateStage(installer::ROLLINGBACK);
    208     installer::InstallStatus result =
    209         base::PathExists(new_chrome_exe) && current_version->get() &&
    210         new_version.Equals(*current_version->get()) ?
    211         installer::SAME_VERSION_REPAIR_FAILED :
    212         installer::INSTALL_FAILED;
    213     LOG(ERROR) << "Install failed, rolling back... result: " << result;
    214     install_list->Rollback();
    215     LOG(ERROR) << "Rollback complete. ";
    216     return result;
    217   }
    218 
    219   installer_state.UpdateStage(installer::REFRESHING_POLICY);
    220 
    221   installer::RefreshElevationPolicy();
    222 
    223   if (!current_version->get()) {
    224     VLOG(1) << "First install of version " << new_version.GetString();
    225     return installer::FIRST_INSTALL_SUCCESS;
    226   }
    227 
    228   if (new_version.Equals(**current_version)) {
    229     VLOG(1) << "Install repaired of version " << new_version.GetString();
    230     return installer::INSTALL_REPAIRED;
    231   }
    232 
    233   if (new_version.CompareTo(**current_version) > 0) {
    234     if (base::PathExists(new_chrome_exe)) {
    235       VLOG(1) << "Version updated to " << new_version.GetString()
    236               << " while running " << (*current_version)->GetString();
    237       return installer::IN_USE_UPDATED;
    238     }
    239     VLOG(1) << "Version updated to " << new_version.GetString();
    240     return installer::NEW_VERSION_UPDATED;
    241   }
    242 
    243   LOG(ERROR) << "Not sure how we got here while updating"
    244              << ", new version: " << new_version.GetString()
    245              << ", old version: " << (*current_version)->GetString();
    246 
    247   return installer::INSTALL_FAILED;
    248 }
    249 
    250 // Deletes the old "Uninstall Google Chrome" shortcut in the Start menu and, if
    251 // this is a system-level install, also deletes the old Default user Quick
    252 // Launch shortcut. Both of these were created prior to Chrome 24; in Chrome 24,
    253 // the uninstall shortcut was removed and the Default user Quick Launch shortcut
    254 // was replaced by per-user shortcuts created via Active Setup.
    255 void CleanupLegacyShortcuts(const installer::InstallerState& installer_state,
    256                             BrowserDistribution* dist,
    257                             const base::FilePath& chrome_exe) {
    258   ShellUtil::ShellChange shortcut_level = installer_state.system_install() ?
    259       ShellUtil::SYSTEM_LEVEL : ShellUtil::CURRENT_USER;
    260   base::FilePath uninstall_shortcut_path;
    261   ShellUtil::GetShortcutPath(ShellUtil::SHORTCUT_LOCATION_START_MENU_CHROME_DIR,
    262                              dist, shortcut_level, &uninstall_shortcut_path);
    263   uninstall_shortcut_path = uninstall_shortcut_path.Append(
    264       dist->GetUninstallLinkName() + installer::kLnkExt);
    265   base::DeleteFile(uninstall_shortcut_path, false);
    266 
    267   if (installer_state.system_install()) {
    268     ShellUtil::RemoveShortcuts(
    269         ShellUtil::SHORTCUT_LOCATION_QUICK_LAUNCH, dist,
    270         ShellUtil::SYSTEM_LEVEL, chrome_exe);
    271   }
    272 }
    273 
    274 // Returns the appropriate shortcut operations for App Launcher,
    275 // based on state of installation and master_preferences.
    276 installer::InstallShortcutOperation GetAppLauncherShortcutOperation(
    277     const installer::InstallationState& original_state,
    278     const installer::InstallerState& installer_state) {
    279   const installer::ProductState* original_app_host_state =
    280       original_state.GetProductState(installer_state.system_install(),
    281                                      BrowserDistribution::CHROME_APP_HOST);
    282   bool app_launcher_exists = original_app_host_state &&
    283       original_app_host_state->uninstall_command()
    284           .HasSwitch(installer::switches::kChromeAppLauncher);
    285   if (!app_launcher_exists)
    286     return installer::INSTALL_SHORTCUT_CREATE_ALL;
    287 
    288   return installer::INSTALL_SHORTCUT_REPLACE_EXISTING;
    289 }
    290 
    291 }  // end namespace
    292 
    293 namespace installer {
    294 
    295 void EscapeXmlAttributeValueInSingleQuotes(base::string16* att_value) {
    296   base::ReplaceChars(*att_value, base::ASCIIToUTF16("&"),
    297                      base::ASCIIToUTF16("&amp;"), att_value);
    298   base::ReplaceChars(*att_value, base::ASCIIToUTF16("'"),
    299                      base::ASCIIToUTF16("&apos;"), att_value);
    300   base::ReplaceChars(*att_value, base::ASCIIToUTF16("<"),
    301                      base::ASCIIToUTF16("&lt;"), att_value);
    302 }
    303 
    304 bool CreateVisualElementsManifest(const base::FilePath& src_path,
    305                                   const Version& version) {
    306   // Construct the relative path to the versioned VisualElements directory.
    307   base::string16 elements_dir(base::ASCIIToUTF16(version.GetString()));
    308   elements_dir.push_back(base::FilePath::kSeparators[0]);
    309   elements_dir.append(installer::kVisualElements);
    310 
    311   // Some distributions of Chromium may not include visual elements. Only
    312   // proceed if this distribution does.
    313   if (!base::PathExists(src_path.Append(elements_dir))) {
    314     VLOG(1) << "No visual elements found, not writing "
    315             << installer::kVisualElementsManifest << " to " << src_path.value();
    316     return true;
    317   } else {
    318     // A printf_p-style format string for generating the visual elements
    319     // manifest. Required arguments, in order, are:
    320     //   - Localized display name for the product.
    321     //   - Relative path to the VisualElements directory.
    322     static const char kManifestTemplate[] =
    323         "<Application>\r\n"
    324         "  <VisualElements\r\n"
    325         "      DisplayName='%1$ls'\r\n"
    326         "      Logo='%2$ls\\Logo.png'\r\n"
    327         "      SmallLogo='%2$ls\\SmallLogo.png'\r\n"
    328         "      ForegroundText='light'\r\n"
    329         "      BackgroundColor='#323232'>\r\n"
    330         "    <DefaultTile ShowName='allLogos'/>\r\n"
    331         "    <SplashScreen Image='%2$ls\\splash-620x300.png'/>\r\n"
    332         "  </VisualElements>\r\n"
    333         "</Application>";
    334 
    335     const base::string16 manifest_template(
    336         base::ASCIIToUTF16(kManifestTemplate));
    337 
    338     BrowserDistribution* dist = BrowserDistribution::GetSpecificDistribution(
    339         BrowserDistribution::CHROME_BROWSER);
    340     // TODO(grt): http://crbug.com/75152 Write a reference to a localized
    341     // resource for |display_name|.
    342     base::string16 display_name(dist->GetDisplayName());
    343     EscapeXmlAttributeValueInSingleQuotes(&display_name);
    344 
    345     // Fill the manifest with the desired values.
    346     base::string16 manifest16(base::StringPrintf(
    347         manifest_template.c_str(), display_name.c_str(), elements_dir.c_str()));
    348 
    349     // Write the manifest to |src_path|.
    350     const std::string manifest(base::UTF16ToUTF8(manifest16));
    351     int size = base::checked_cast<int>(manifest.size());
    352     if (base::WriteFile(
    353         src_path.Append(installer::kVisualElementsManifest),
    354             manifest.c_str(), size) == size) {
    355       VLOG(1) << "Successfully wrote " << installer::kVisualElementsManifest
    356               << " to " << src_path.value();
    357       return true;
    358     } else {
    359       PLOG(ERROR) << "Error writing " << installer::kVisualElementsManifest
    360                   << " to " << src_path.value();
    361       return false;
    362     }
    363   }
    364 }
    365 
    366 void CreateOrUpdateShortcuts(
    367     const base::FilePath& target,
    368     const installer::Product& product,
    369     const MasterPreferences& prefs,
    370     InstallShortcutLevel install_level,
    371     InstallShortcutOperation install_operation) {
    372   bool do_not_create_any_shortcuts = false;
    373   prefs.GetBool(master_preferences::kDoNotCreateAnyShortcuts,
    374                 &do_not_create_any_shortcuts);
    375   if (do_not_create_any_shortcuts)
    376     return;
    377 
    378   // Extract shortcut preferences from |prefs|.
    379   bool do_not_create_desktop_shortcut = false;
    380   bool do_not_create_quick_launch_shortcut = false;
    381   bool do_not_create_taskbar_shortcut = false;
    382   bool alternate_desktop_shortcut = false;
    383   prefs.GetBool(master_preferences::kDoNotCreateDesktopShortcut,
    384                 &do_not_create_desktop_shortcut);
    385   prefs.GetBool(master_preferences::kDoNotCreateQuickLaunchShortcut,
    386                 &do_not_create_quick_launch_shortcut);
    387   prefs.GetBool(master_preferences::kDoNotCreateTaskbarShortcut,
    388                 &do_not_create_taskbar_shortcut);
    389   prefs.GetBool(master_preferences::kAltShortcutText,
    390                 &alternate_desktop_shortcut);
    391 
    392   BrowserDistribution* dist = product.distribution();
    393 
    394   // The default operation on update is to overwrite shortcuts with the
    395   // currently desired properties, but do so only for shortcuts that still
    396   // exist.
    397   ShellUtil::ShortcutOperation shortcut_operation;
    398   switch (install_operation) {
    399     case INSTALL_SHORTCUT_CREATE_ALL:
    400       shortcut_operation = ShellUtil::SHELL_SHORTCUT_CREATE_ALWAYS;
    401       break;
    402     case INSTALL_SHORTCUT_CREATE_EACH_IF_NO_SYSTEM_LEVEL:
    403       shortcut_operation = ShellUtil::SHELL_SHORTCUT_CREATE_IF_NO_SYSTEM_LEVEL;
    404       break;
    405     default:
    406       DCHECK(install_operation == INSTALL_SHORTCUT_REPLACE_EXISTING);
    407       shortcut_operation = ShellUtil::SHELL_SHORTCUT_REPLACE_EXISTING;
    408       break;
    409   }
    410 
    411   // Shortcuts are always installed per-user unless specified.
    412   ShellUtil::ShellChange shortcut_level = (install_level == ALL_USERS ?
    413       ShellUtil::SYSTEM_LEVEL : ShellUtil::CURRENT_USER);
    414 
    415   // |base_properties|: The basic properties to set on every shortcut installed
    416   // (to be refined on a per-shortcut basis).
    417   ShellUtil::ShortcutProperties base_properties(shortcut_level);
    418   product.AddDefaultShortcutProperties(target, &base_properties);
    419 
    420   if (!do_not_create_desktop_shortcut ||
    421       shortcut_operation == ShellUtil::SHELL_SHORTCUT_REPLACE_EXISTING) {
    422     ShellUtil::ShortcutProperties desktop_properties(base_properties);
    423     if (alternate_desktop_shortcut) {
    424       desktop_properties.set_shortcut_name(
    425           dist->GetShortcutName(
    426               BrowserDistribution::SHORTCUT_CHROME_ALTERNATE));
    427     }
    428     ExecuteAndLogShortcutOperation(
    429         ShellUtil::SHORTCUT_LOCATION_DESKTOP, dist, desktop_properties,
    430         shortcut_operation);
    431 
    432     // On update there is no harm in always trying to update the alternate
    433     // Desktop shortcut.
    434     if (!alternate_desktop_shortcut &&
    435         shortcut_operation == ShellUtil::SHELL_SHORTCUT_REPLACE_EXISTING) {
    436       desktop_properties.set_shortcut_name(
    437           dist->GetShortcutName(
    438               BrowserDistribution::SHORTCUT_CHROME_ALTERNATE));
    439       ExecuteAndLogShortcutOperation(
    440           ShellUtil::SHORTCUT_LOCATION_DESKTOP, dist, desktop_properties,
    441           shortcut_operation);
    442     }
    443   }
    444 
    445   if (!do_not_create_quick_launch_shortcut ||
    446       shortcut_operation == ShellUtil::SHELL_SHORTCUT_REPLACE_EXISTING) {
    447     // There is no such thing as an all-users Quick Launch shortcut, always
    448     // install the per-user shortcut.
    449     ShellUtil::ShortcutProperties quick_launch_properties(base_properties);
    450     quick_launch_properties.level = ShellUtil::CURRENT_USER;
    451     ExecuteAndLogShortcutOperation(
    452         ShellUtil::SHORTCUT_LOCATION_QUICK_LAUNCH, dist,
    453         quick_launch_properties, shortcut_operation);
    454   }
    455 
    456   ShellUtil::ShortcutProperties start_menu_properties(base_properties);
    457   // IMPORTANT: Only the default (no arguments and default browserappid) browser
    458   // shortcut in the Start menu (Start screen on Win8+) should be made dual
    459   // mode.
    460   start_menu_properties.set_dual_mode(true);
    461   if (!do_not_create_taskbar_shortcut &&
    462       (shortcut_operation == ShellUtil::SHELL_SHORTCUT_CREATE_ALWAYS ||
    463        shortcut_operation ==
    464            ShellUtil::SHELL_SHORTCUT_CREATE_IF_NO_SYSTEM_LEVEL)) {
    465     start_menu_properties.set_pin_to_taskbar(true);
    466   }
    467   ExecuteAndLogShortcutOperation(
    468       ShellUtil::SHORTCUT_LOCATION_START_MENU_CHROME_DIR, dist,
    469       start_menu_properties, shortcut_operation);
    470 }
    471 
    472 void RegisterChromeOnMachine(const installer::InstallerState& installer_state,
    473                              const installer::Product& product,
    474                              bool make_chrome_default) {
    475   DCHECK(product.is_chrome());
    476 
    477   // Try to add Chrome to Media Player shim inclusion list. We don't do any
    478   // error checking here because this operation will fail if user doesn't
    479   // have admin rights and we want to ignore the error.
    480   AddChromeToMediaPlayerList();
    481 
    482   // Make Chrome the default browser if desired when possible. Otherwise, only
    483   // register it with Windows.
    484   BrowserDistribution* dist = product.distribution();
    485   const base::string16 chrome_exe(
    486       installer_state.target_path().Append(installer::kChromeExe).value());
    487   VLOG(1) << "Registering Chrome as browser: " << chrome_exe;
    488   if (make_chrome_default && ShellUtil::CanMakeChromeDefaultUnattended()) {
    489     int level = ShellUtil::CURRENT_USER;
    490     if (installer_state.system_install())
    491       level = level | ShellUtil::SYSTEM_LEVEL;
    492     ShellUtil::MakeChromeDefault(dist, level, chrome_exe, true);
    493   } else {
    494     ShellUtil::RegisterChromeBrowser(dist, chrome_exe, base::string16(), false);
    495   }
    496 }
    497 
    498 InstallStatus InstallOrUpdateProduct(
    499     const installer::InstallationState& original_state,
    500     const installer::InstallerState& installer_state,
    501     const base::FilePath& setup_path,
    502     const base::FilePath& archive_path,
    503     const base::FilePath& install_temp_path,
    504     const base::FilePath& src_path,
    505     const base::FilePath& prefs_path,
    506     const MasterPreferences& prefs,
    507     const Version& new_version) {
    508   DCHECK(!installer_state.products().empty());
    509 
    510   // TODO(robertshield): Removing the pending on-reboot moves should be done
    511   // elsewhere.
    512   // Remove any scheduled MOVEFILE_DELAY_UNTIL_REBOOT entries in the target of
    513   // this installation. These may have been added during a previous uninstall of
    514   // the same version.
    515   LOG_IF(ERROR, !RemoveFromMovesPendingReboot(installer_state.target_path()))
    516       << "Error accessing pending moves value.";
    517 
    518   // Create VisualElementManifest.xml in |src_path| (if required) so that it
    519   // looks as if it had been extracted from the archive when calling
    520   // InstallNewVersion() below.
    521   installer_state.UpdateStage(installer::CREATING_VISUAL_MANIFEST);
    522   CreateVisualElementsManifest(src_path, new_version);
    523 
    524   scoped_ptr<Version> existing_version;
    525   InstallStatus result = InstallNewVersion(original_state, installer_state,
    526       setup_path, archive_path, src_path, install_temp_path, new_version,
    527       &existing_version);
    528 
    529   // TODO(robertshield): Everything below this line should instead be captured
    530   // by WorkItems.
    531   if (!InstallUtil::GetInstallReturnCode(result)) {
    532     installer_state.UpdateStage(installer::UPDATING_CHANNELS);
    533 
    534     // Update the modifiers on the channel values for the product(s) being
    535     // installed and for the binaries in case of multi-install.
    536     installer_state.UpdateChannels();
    537 
    538     installer_state.UpdateStage(installer::COPYING_PREFERENCES_FILE);
    539 
    540     if (result == FIRST_INSTALL_SUCCESS && !prefs_path.empty())
    541       CopyPreferenceFileForFirstRun(installer_state, prefs_path);
    542 
    543     installer_state.UpdateStage(installer::CREATING_SHORTCUTS);
    544 
    545     const installer::Product* app_launcher_product =
    546         installer_state.FindProduct(BrowserDistribution::CHROME_APP_HOST);
    547     // Creates shortcuts for App Launcher.
    548     if (app_launcher_product) {
    549       // TODO(huangs): Remove this check once we have system-level App Host.
    550       DCHECK(!installer_state.system_install());
    551       const base::FilePath app_host_exe(
    552           installer_state.target_path().Append(kChromeAppHostExe));
    553       InstallShortcutOperation app_launcher_shortcut_operation =
    554           GetAppLauncherShortcutOperation(original_state, installer_state);
    555 
    556       // Always install per-user shortcuts for App Launcher.
    557       CreateOrUpdateShortcuts(app_host_exe, *app_launcher_product, prefs,
    558                               CURRENT_USER, app_launcher_shortcut_operation);
    559     }
    560 
    561     const installer::Product* chrome_product =
    562         installer_state.FindProduct(BrowserDistribution::CHROME_BROWSER);
    563     // Creates shortcuts for Chrome.
    564     if (chrome_product) {
    565       BrowserDistribution* chrome_dist = chrome_product->distribution();
    566       const base::FilePath chrome_exe(
    567           installer_state.target_path().Append(kChromeExe));
    568       CleanupLegacyShortcuts(installer_state, chrome_dist, chrome_exe);
    569 
    570       // Install per-user shortcuts on user-level installs and all-users
    571       // shortcuts on system-level installs. Note that Active Setup will take
    572       // care of installing missing per-user shortcuts on system-level install
    573       // (i.e., quick launch, taskbar pin, and possibly deleted all-users
    574       // shortcuts).
    575       InstallShortcutLevel install_level = installer_state.system_install() ?
    576           ALL_USERS : CURRENT_USER;
    577 
    578       InstallShortcutOperation install_operation =
    579           INSTALL_SHORTCUT_REPLACE_EXISTING;
    580       if (result == installer::FIRST_INSTALL_SUCCESS ||
    581           result == installer::INSTALL_REPAIRED ||
    582           !original_state.GetProductState(installer_state.system_install(),
    583                                           chrome_dist->GetType())) {
    584         // Always create the shortcuts on a new install, a repair install, and
    585         // when the Chrome product is being added to the current install.
    586         install_operation = INSTALL_SHORTCUT_CREATE_ALL;
    587       }
    588 
    589       CreateOrUpdateShortcuts(chrome_exe, *chrome_product, prefs, install_level,
    590                               install_operation);
    591     }
    592 
    593     if (chrome_product) {
    594       // Register Chrome and, if requested, make Chrome the default browser.
    595       installer_state.UpdateStage(installer::REGISTERING_CHROME);
    596 
    597       bool make_chrome_default = false;
    598       prefs.GetBool(master_preferences::kMakeChromeDefault,
    599                     &make_chrome_default);
    600 
    601       // If this is not the user's first Chrome install, but they have chosen
    602       // Chrome to become their default browser on the download page, we must
    603       // force it here because the master_preferences file will not get copied
    604       // into the build.
    605       bool force_chrome_default_for_user = false;
    606       if (result == NEW_VERSION_UPDATED ||
    607           result == INSTALL_REPAIRED) {
    608         prefs.GetBool(master_preferences::kMakeChromeDefaultForUser,
    609                       &force_chrome_default_for_user);
    610       }
    611 
    612       RegisterChromeOnMachine(installer_state, *chrome_product,
    613           make_chrome_default || force_chrome_default_for_user);
    614 
    615       // Configure auto-launch.
    616       if (result == FIRST_INSTALL_SUCCESS) {
    617         installer_state.UpdateStage(installer::CONFIGURE_AUTO_LAUNCH);
    618 
    619         // Add auto-launch key if specified in master_preferences.
    620         bool auto_launch_chrome = false;
    621         prefs.GetBool(
    622             installer::master_preferences::kAutoLaunchChrome,
    623             &auto_launch_chrome);
    624         if (auto_launch_chrome) {
    625           auto_launch_util::EnableForegroundStartAtLogin(
    626               base::ASCIIToUTF16(chrome::kInitialProfile),
    627               installer_state.target_path());
    628         }
    629       }
    630     }
    631 
    632     installer_state.UpdateStage(installer::REMOVING_OLD_VERSIONS);
    633 
    634     installer_state.RemoveOldVersionDirectories(
    635         new_version,
    636         existing_version.get(),
    637         install_temp_path);
    638   }
    639 
    640   return result;
    641 }
    642 
    643 void HandleOsUpgradeForBrowser(const installer::InstallerState& installer_state,
    644                                const installer::Product& chrome) {
    645   DCHECK(chrome.is_chrome());
    646   // Upon upgrading to Windows 8, we need to fix Chrome shortcuts and register
    647   // Chrome, so that Metro Chrome would work if Chrome is the default browser.
    648   if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
    649     VLOG(1) << "Updating and registering shortcuts.";
    650     // Read master_preferences copied beside chrome.exe at install.
    651     MasterPreferences prefs(
    652         installer_state.target_path().AppendASCII(kDefaultMasterPrefs));
    653 
    654     // Unfortunately, if this is a system-level install, we can't update the
    655     // shortcuts of each individual user (this only matters if this is an OS
    656     // upgrade from XP/Vista to Win7+ as some properties are only set on
    657     // shortcuts as of Win7).
    658     // At least attempt to update potentially existing all-users shortcuts.
    659     InstallShortcutLevel level = installer_state.system_install() ?
    660         ALL_USERS : CURRENT_USER;
    661     base::FilePath chrome_exe(installer_state.target_path().Append(kChromeExe));
    662     CreateOrUpdateShortcuts(
    663         chrome_exe, chrome, prefs, level, INSTALL_SHORTCUT_REPLACE_EXISTING);
    664     RegisterChromeOnMachine(installer_state, chrome, false);
    665   }
    666 }
    667 
    668 // NOTE: Should the work done here, on Active Setup, change: kActiveSetupVersion
    669 // in install_worker.cc needs to be increased for Active Setup to invoke this
    670 // again for all users of this install.
    671 void HandleActiveSetupForBrowser(const base::FilePath& installation_root,
    672                                  const installer::Product& chrome,
    673                                  bool force) {
    674   DCHECK(chrome.is_chrome());
    675   // Only create shortcuts on Active Setup if the first run sentinel is not
    676   // present for this user (as some shortcuts used to be installed on first
    677   // run and this could otherwise re-install shortcuts for users that have
    678   // already deleted them in the past).
    679   // Decide whether to create the shortcuts or simply replace existing
    680   // shortcuts; if the decision is to create them, only shortcuts whose matching
    681   // all-users shortcut isn't present on the system will be created.
    682   InstallShortcutOperation install_operation =
    683       (!force && InstallUtil::IsFirstRunSentinelPresent() ?
    684            INSTALL_SHORTCUT_REPLACE_EXISTING :
    685            INSTALL_SHORTCUT_CREATE_EACH_IF_NO_SYSTEM_LEVEL);
    686 
    687   // Read master_preferences copied beside chrome.exe at install.
    688   MasterPreferences prefs(installation_root.AppendASCII(kDefaultMasterPrefs));
    689   base::FilePath chrome_exe(installation_root.Append(kChromeExe));
    690   CreateOrUpdateShortcuts(
    691       chrome_exe, chrome, prefs, CURRENT_USER, install_operation);
    692 }
    693 
    694 bool InstallFromWebstore(const std::string& app_code) {
    695   base::FilePath app_host_path(chrome_launcher_support::GetAnyAppHostPath());
    696   if (app_host_path.empty())
    697     return false;
    698 
    699   CommandLine cmd(app_host_path);
    700   cmd.AppendSwitchASCII(::switches::kInstallFromWebstore, app_code);
    701   VLOG(1) << "App install command: " << cmd.GetCommandLineString();
    702   return base::LaunchProcess(cmd, base::LaunchOptions(), NULL);
    703 }
    704 
    705 }  // namespace installer
    706