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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/chrome_browser_main_win.h"
      6 
      7 #include <windows.h>
      8 #include <shellapi.h>
      9 
     10 #include <algorithm>
     11 
     12 #include "base/command_line.h"
     13 #include "base/environment.h"
     14 #include "base/files/file_path.h"
     15 #include "base/i18n/rtl.h"
     16 #include "base/memory/scoped_ptr.h"
     17 #include "base/metrics/histogram.h"
     18 #include "base/path_service.h"
     19 #include "base/scoped_native_library.h"
     20 #include "base/strings/string_number_conversions.h"
     21 #include "base/strings/utf_string_conversions.h"
     22 #include "base/win/metro.h"
     23 #include "base/win/win_util.h"
     24 #include "base/win/windows_version.h"
     25 #include "base/win/wrapped_window_proc.h"
     26 #include "chrome/browser/browser_util_win.h"
     27 #include "chrome/browser/chrome_elf_init_win.h"
     28 #include "chrome/browser/first_run/first_run.h"
     29 #include "chrome/browser/install_verification/win/install_verification.h"
     30 #include "chrome/browser/prefs/incognito_mode_prefs.h"
     31 #include "chrome/browser/profiles/profile_info_cache.h"
     32 #include "chrome/browser/profiles/profile_shortcut_manager.h"
     33 #include "chrome/browser/shell_integration.h"
     34 #include "chrome/browser/ui/simple_message_box.h"
     35 #include "chrome/browser/ui/uninstall_browser_prompt.h"
     36 #include "chrome/common/chrome_constants.h"
     37 #include "chrome/common/chrome_result_codes.h"
     38 #include "chrome/common/chrome_switches.h"
     39 #include "chrome/common/chrome_version_info.h"
     40 #include "chrome/common/env_vars.h"
     41 #include "chrome/common/terminate_on_heap_corruption_experiment_win.h"
     42 #include "chrome/grit/chromium_strings.h"
     43 #include "chrome/grit/generated_resources.h"
     44 #include "chrome/installer/util/browser_distribution.h"
     45 #include "chrome/installer/util/helper.h"
     46 #include "chrome/installer/util/install_util.h"
     47 #include "chrome/installer/util/l10n_string_util.h"
     48 #include "chrome/installer/util/shell_util.h"
     49 #include "content/public/browser/browser_thread.h"
     50 #include "content/public/common/main_function_params.h"
     51 #include "installer_util_strings/installer_util_strings.h"
     52 #include "ui/base/cursor/cursor_loader_win.h"
     53 #include "ui/base/l10n/l10n_util.h"
     54 #include "ui/base/l10n/l10n_util_win.h"
     55 #include "ui/base/ui_base_switches.h"
     56 #include "ui/base/win/message_box_win.h"
     57 #include "ui/gfx/platform_font_win.h"
     58 #include "ui/gfx/switches.h"
     59 #include "ui/strings/grit/app_locale_settings.h"
     60 
     61 #if defined(GOOGLE_CHROME_BUILD)
     62 #include "chrome/browser/google/did_run_updater_win.h"
     63 #endif
     64 
     65 namespace {
     66 
     67 typedef HRESULT (STDAPICALLTYPE* RegisterApplicationRestartProc)(
     68     const wchar_t* command_line,
     69     DWORD flags);
     70 
     71 void InitializeWindowProcExceptions() {
     72   // Get the breakpad pointer from chrome.exe
     73   base::win::WinProcExceptionFilter exception_filter =
     74       reinterpret_cast<base::win::WinProcExceptionFilter>(
     75           ::GetProcAddress(::GetModuleHandle(
     76                                chrome::kBrowserProcessExecutableName),
     77                            "CrashForException"));
     78   exception_filter = base::win::SetWinProcExceptionFilter(exception_filter);
     79   DCHECK(!exception_filter);
     80 }
     81 
     82 // gfx::Font callbacks
     83 void AdjustUIFont(LOGFONT* logfont) {
     84   l10n_util::AdjustUIFont(logfont);
     85 }
     86 
     87 int GetMinimumFontSize() {
     88   int min_font_size;
     89   base::StringToInt(l10n_util::GetStringUTF16(IDS_MINIMUM_UI_FONT_SIZE),
     90                     &min_font_size);
     91   return min_font_size;
     92 }
     93 
     94 class TranslationDelegate : public installer::TranslationDelegate {
     95  public:
     96   virtual base::string16 GetLocalizedString(int installer_string_id) OVERRIDE;
     97 };
     98 
     99 bool IsSafeModeStart() {
    100   return ::GetEnvironmentVariableA(chrome::kSafeModeEnvVar, NULL, 0) != 0;
    101 }
    102 
    103 }  // namespace
    104 
    105 void ShowCloseBrowserFirstMessageBox() {
    106   int message_id = IDS_UNINSTALL_CLOSE_APP;
    107   if (base::win::GetVersion() >= base::win::VERSION_WIN8 &&
    108       (ShellIntegration::GetDefaultBrowser() == ShellIntegration::IS_DEFAULT)) {
    109     message_id = IDS_UNINSTALL_CLOSE_APP_IMMERSIVE;
    110   }
    111   chrome::ShowMessageBox(NULL,
    112                          l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
    113                          l10n_util::GetStringUTF16(message_id),
    114                          chrome::MESSAGE_BOX_TYPE_WARNING);
    115 }
    116 
    117 int DoUninstallTasks(bool chrome_still_running) {
    118   // We want to show a warning to user (and exit) if Chrome is already running
    119   // *before* we show the uninstall confirmation dialog box. But while the
    120   // uninstall confirmation dialog is up, user might start Chrome, so we
    121   // check once again after user acknowledges Uninstall dialog.
    122   if (chrome_still_running) {
    123     ShowCloseBrowserFirstMessageBox();
    124     return chrome::RESULT_CODE_UNINSTALL_CHROME_ALIVE;
    125   }
    126   int result = chrome::ShowUninstallBrowserPrompt();
    127   if (browser_util::IsBrowserAlreadyRunning()) {
    128     ShowCloseBrowserFirstMessageBox();
    129     return chrome::RESULT_CODE_UNINSTALL_CHROME_ALIVE;
    130   }
    131 
    132   if (result != chrome::RESULT_CODE_UNINSTALL_USER_CANCEL) {
    133     // The following actions are just best effort.
    134     // TODO(gab): Look into removing this code which is now redundant with the
    135     // work done by setup.exe on uninstall.
    136     VLOG(1) << "Executing uninstall actions";
    137     base::FilePath chrome_exe;
    138     if (PathService::Get(base::FILE_EXE, &chrome_exe)) {
    139       ShellUtil::ShortcutLocation user_shortcut_locations[] = {
    140         ShellUtil::SHORTCUT_LOCATION_DESKTOP,
    141         ShellUtil::SHORTCUT_LOCATION_QUICK_LAUNCH,
    142         ShellUtil::SHORTCUT_LOCATION_START_MENU_CHROME_DIR,
    143         ShellUtil::SHORTCUT_LOCATION_START_MENU_CHROME_APPS_DIR,
    144       };
    145       BrowserDistribution* dist = BrowserDistribution::GetDistribution();
    146       for (size_t i = 0; i < arraysize(user_shortcut_locations); ++i) {
    147         if (!ShellUtil::RemoveShortcuts(user_shortcut_locations[i], dist,
    148                 ShellUtil::CURRENT_USER, chrome_exe)) {
    149           VLOG(1) << "Failed to delete shortcut at location "
    150                   << user_shortcut_locations[i];
    151         }
    152       }
    153     } else {
    154       NOTREACHED();
    155     }
    156   }
    157   return result;
    158 }
    159 
    160 // ChromeBrowserMainPartsWin ---------------------------------------------------
    161 
    162 ChromeBrowserMainPartsWin::ChromeBrowserMainPartsWin(
    163     const content::MainFunctionParams& parameters)
    164     : ChromeBrowserMainParts(parameters) {
    165   if (base::win::IsMetroProcess()) {
    166     typedef const wchar_t* (*GetMetroSwitches)(void);
    167     GetMetroSwitches metro_switches_proc = reinterpret_cast<GetMetroSwitches>(
    168         GetProcAddress(base::win::GetMetroModule(),
    169                        "GetMetroCommandLineSwitches"));
    170     if (metro_switches_proc) {
    171       base::string16 metro_switches = (*metro_switches_proc)();
    172       if (!metro_switches.empty()) {
    173         CommandLine extra_switches(CommandLine::NO_PROGRAM);
    174         extra_switches.ParseFromString(metro_switches);
    175         CommandLine::ForCurrentProcess()->AppendArguments(extra_switches,
    176                                                           false);
    177       }
    178     }
    179   }
    180 }
    181 
    182 ChromeBrowserMainPartsWin::~ChromeBrowserMainPartsWin() {
    183 }
    184 
    185 void ChromeBrowserMainPartsWin::ToolkitInitialized() {
    186   ChromeBrowserMainParts::ToolkitInitialized();
    187   gfx::PlatformFontWin::adjust_font_callback = &AdjustUIFont;
    188   gfx::PlatformFontWin::get_minimum_font_size_callback = &GetMinimumFontSize;
    189 #if defined(USE_AURA)
    190   ui::CursorLoaderWin::SetCursorResourceModule(chrome::kBrowserResourcesDll);
    191 #endif
    192 }
    193 
    194 void ChromeBrowserMainPartsWin::PreMainMessageLoopStart() {
    195   // installer_util references strings that are normally compiled into
    196   // setup.exe.  In Chrome, these strings are in the locale files.
    197   SetupInstallerUtilStrings();
    198 
    199   ChromeBrowserMainParts::PreMainMessageLoopStart();
    200   if (!parameters().ui_task) {
    201     // Make sure that we know how to handle exceptions from the message loop.
    202     InitializeWindowProcExceptions();
    203   }
    204 
    205   IncognitoModePrefs::InitializePlatformParentalControls();
    206 }
    207 
    208 int ChromeBrowserMainPartsWin::PreCreateThreads() {
    209   int rv = ChromeBrowserMainParts::PreCreateThreads();
    210 
    211   if (IsSafeModeStart()) {
    212     // TODO(cpu): disable other troublesome features for safe mode.
    213     CommandLine::ForCurrentProcess()->AppendSwitch(
    214         switches::kDisableGpu);
    215   }
    216   // TODO(viettrungluu): why don't we run this earlier?
    217   if (!parsed_command_line().HasSwitch(switches::kNoErrorDialogs) &&
    218       base::win::GetVersion() < base::win::VERSION_XP) {
    219     chrome::ShowMessageBox(NULL,
    220         l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
    221         l10n_util::GetStringUTF16(IDS_UNSUPPORTED_OS_PRE_WIN_XP),
    222         chrome::MESSAGE_BOX_TYPE_WARNING);
    223   }
    224 
    225   return rv;
    226 }
    227 
    228 void ChromeBrowserMainPartsWin::ShowMissingLocaleMessageBox() {
    229   ui::MessageBox(NULL,
    230                  base::ASCIIToUTF16(chrome_browser::kMissingLocaleDataMessage),
    231                  base::ASCIIToUTF16(chrome_browser::kMissingLocaleDataTitle),
    232                  MB_OK | MB_ICONERROR | MB_TOPMOST);
    233 }
    234 
    235 void ChromeBrowserMainPartsWin::PostBrowserStart() {
    236   ChromeBrowserMainParts::PostBrowserStart();
    237 
    238   UMA_HISTOGRAM_BOOLEAN("Windows.Tablet", base::win::IsTabletDevice());
    239 
    240   // Set up a task to verify installed modules in the current process. Use a
    241   // delay to reduce the impact on startup time.
    242   content::BrowserThread::GetMessageLoopProxyForThread(
    243       content::BrowserThread::UI)->PostDelayedTask(
    244           FROM_HERE,
    245           base::Bind(&VerifyInstallation),
    246           base::TimeDelta::FromSeconds(45));
    247 
    248   InitializeChromeElf();
    249 
    250   // TODO(erikwright): Remove this and the implementation of the experiment by
    251   // September 2014.
    252   InitializeDisableTerminateOnHeapCorruptionExperiment();
    253 
    254 #if defined(GOOGLE_CHROME_BUILD)
    255   did_run_updater_.reset(new DidRunUpdater);
    256 #endif
    257 }
    258 
    259 // static
    260 void ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
    261     const CommandLine& parsed_command_line) {
    262   // Clear this var so child processes don't show the dialog by default.
    263   scoped_ptr<base::Environment> env(base::Environment::Create());
    264   env->UnSetVar(env_vars::kShowRestart);
    265 
    266   // For non-interactive tests we don't restart on crash.
    267   if (env->HasVar(env_vars::kHeadless))
    268     return;
    269 
    270   // If the known command-line test options are used we don't create the
    271   // environment block which means we don't get the restart dialog.
    272   if (parsed_command_line.HasSwitch(switches::kBrowserCrashTest) ||
    273       parsed_command_line.HasSwitch(switches::kBrowserAssertTest) ||
    274       parsed_command_line.HasSwitch(switches::kNoErrorDialogs))
    275     return;
    276 
    277   // The encoding we use for the info is "title|context|direction" where
    278   // direction is either env_vars::kRtlLocale or env_vars::kLtrLocale depending
    279   // on the current locale.
    280   base::string16 dlg_strings(l10n_util::GetStringUTF16(IDS_CRASH_RECOVERY_TITLE));
    281   dlg_strings.push_back('|');
    282   base::string16 adjusted_string(
    283       l10n_util::GetStringUTF16(IDS_CRASH_RECOVERY_CONTENT));
    284   base::i18n::AdjustStringForLocaleDirection(&adjusted_string);
    285   dlg_strings.append(adjusted_string);
    286   dlg_strings.push_back('|');
    287   dlg_strings.append(base::ASCIIToUTF16(
    288       base::i18n::IsRTL() ? env_vars::kRtlLocale : env_vars::kLtrLocale));
    289 
    290   env->SetVar(env_vars::kRestartInfo, base::UTF16ToUTF8(dlg_strings));
    291 }
    292 
    293 // static
    294 void ChromeBrowserMainPartsWin::RegisterApplicationRestart(
    295     const CommandLine& parsed_command_line) {
    296   DCHECK(base::win::GetVersion() >= base::win::VERSION_VISTA);
    297   base::ScopedNativeLibrary library(base::FilePath(L"kernel32.dll"));
    298   // Get the function pointer for RegisterApplicationRestart.
    299   RegisterApplicationRestartProc register_application_restart =
    300       reinterpret_cast<RegisterApplicationRestartProc>(
    301           library.GetFunctionPointer("RegisterApplicationRestart"));
    302   if (!register_application_restart) {
    303     LOG(WARNING) << "Cannot find RegisterApplicationRestart in kernel32.dll";
    304     return;
    305   }
    306   // The Windows Restart Manager expects a string of command line flags only,
    307   // without the program.
    308   CommandLine command_line(CommandLine::NO_PROGRAM);
    309   command_line.AppendArguments(parsed_command_line, false);
    310   if (!command_line.HasSwitch(switches::kRestoreLastSession))
    311     command_line.AppendSwitch(switches::kRestoreLastSession);
    312 
    313   // Restart Chrome if the computer is restarted as the result of an update.
    314   // This could be extended to handle crashes, hangs, and patches.
    315   HRESULT hr = register_application_restart(
    316       command_line.GetCommandLineString().c_str(),
    317       RESTART_NO_CRASH | RESTART_NO_HANG | RESTART_NO_PATCH);
    318   if (FAILED(hr)) {
    319     if (hr == E_INVALIDARG) {
    320       LOG(WARNING) << "Command line too long for RegisterApplicationRestart";
    321     } else {
    322       NOTREACHED() << "RegisterApplicationRestart failed. hr: " << hr <<
    323                       ", command_line: " << command_line.GetCommandLineString();
    324     }
    325   }
    326 }
    327 
    328 // static
    329 int ChromeBrowserMainPartsWin::HandleIconsCommands(
    330     const CommandLine& parsed_command_line) {
    331   if (parsed_command_line.HasSwitch(switches::kHideIcons)) {
    332     base::string16 cp_applet;
    333     base::win::Version version = base::win::GetVersion();
    334     if (version >= base::win::VERSION_VISTA) {
    335       cp_applet.assign(L"Programs and Features");  // Windows Vista and later.
    336     } else if (version >= base::win::VERSION_XP) {
    337       cp_applet.assign(L"Add/Remove Programs");  // Windows XP.
    338     } else {
    339       return chrome::RESULT_CODE_UNSUPPORTED_PARAM;  // Not supported
    340     }
    341 
    342     const base::string16 msg =
    343         l10n_util::GetStringFUTF16(IDS_HIDE_ICONS_NOT_SUPPORTED, cp_applet);
    344     const base::string16 caption = l10n_util::GetStringUTF16(IDS_PRODUCT_NAME);
    345     const UINT flags = MB_OKCANCEL | MB_ICONWARNING | MB_TOPMOST;
    346     if (IDOK == ui::MessageBox(NULL, msg, caption, flags))
    347       ShellExecute(NULL, NULL, L"appwiz.cpl", NULL, NULL, SW_SHOWNORMAL);
    348 
    349     // Exit as we are not launching the browser.
    350     return content::RESULT_CODE_NORMAL_EXIT;
    351   }
    352   // We don't hide icons so we shouldn't do anything special to show them
    353   return chrome::RESULT_CODE_UNSUPPORTED_PARAM;
    354 }
    355 
    356 // static
    357 bool ChromeBrowserMainPartsWin::CheckMachineLevelInstall() {
    358   // TODO(tommi): Check if using the default distribution is always the right
    359   // thing to do.
    360   BrowserDistribution* dist = BrowserDistribution::GetDistribution();
    361   Version version;
    362   InstallUtil::GetChromeVersion(dist, true, &version);
    363   if (version.IsValid()) {
    364     base::FilePath exe_path;
    365     PathService::Get(base::DIR_EXE, &exe_path);
    366     std::wstring exe = exe_path.value();
    367     base::FilePath user_exe_path(installer::GetChromeInstallPath(false, dist));
    368     if (base::FilePath::CompareEqualIgnoreCase(exe, user_exe_path.value())) {
    369       bool is_metro = base::win::IsMetroProcess();
    370       if (!is_metro) {
    371         // The dialog cannot be shown in Win8 Metro as doing so hangs Chrome on
    372         // an invisible dialog.
    373         // TODO (gab): Get rid of this dialog altogether and auto-launch
    374         // system-level Chrome instead.
    375         const base::string16 text =
    376             l10n_util::GetStringUTF16(IDS_MACHINE_LEVEL_INSTALL_CONFLICT);
    377         const base::string16 caption = l10n_util::GetStringUTF16(IDS_PRODUCT_NAME);
    378         const UINT flags = MB_OK | MB_ICONERROR | MB_TOPMOST;
    379         ui::MessageBox(NULL, text, caption, flags);
    380       }
    381       CommandLine uninstall_cmd(
    382           InstallUtil::GetChromeUninstallCmd(false, dist->GetType()));
    383       if (!uninstall_cmd.GetProgram().empty()) {
    384         uninstall_cmd.AppendSwitch(installer::switches::kSelfDestruct);
    385         uninstall_cmd.AppendSwitch(installer::switches::kForceUninstall);
    386         uninstall_cmd.AppendSwitch(
    387             installer::switches::kDoNotRemoveSharedItems);
    388 
    389         // Trigger Active Setup for the system-level Chrome to make sure
    390         // per-user shortcuts to the system-level Chrome are created. Skip this
    391         // if the system-level Chrome will undergo first run anyway, as Active
    392         // Setup is triggered on system-level Chrome's first run.
    393         // TODO(gab): Instead of having callers of Active Setup think about
    394         // other callers, have Active Setup itself register when it ran and
    395         // no-op otherwise (http://crbug.com/346843).
    396         if (!first_run::IsChromeFirstRun())
    397           uninstall_cmd.AppendSwitch(installer::switches::kTriggerActiveSetup);
    398 
    399         const base::FilePath setup_exe(uninstall_cmd.GetProgram());
    400         const base::string16 params(uninstall_cmd.GetArgumentsString());
    401 
    402         SHELLEXECUTEINFO sei = { sizeof(sei) };
    403         sei.fMask = SEE_MASK_NOASYNC;
    404         sei.nShow = SW_SHOWNORMAL;
    405         sei.lpFile = setup_exe.value().c_str();
    406         sei.lpParameters = params.c_str();
    407         // On Windows 8 SEE_MASK_FLAG_LOG_USAGE is necessary to guarantee we
    408         // flip to the Desktop when launching.
    409         if (is_metro)
    410           sei.fMask |= SEE_MASK_FLAG_LOG_USAGE;
    411 
    412         if (!::ShellExecuteEx(&sei))
    413           DPCHECK(false);
    414       }
    415       return true;
    416     }
    417   }
    418   return false;
    419 }
    420 
    421 base::string16 TranslationDelegate::GetLocalizedString(
    422     int installer_string_id) {
    423   int resource_id = 0;
    424   switch (installer_string_id) {
    425   // HANDLE_STRING is used by the DO_INSTALLER_STRING_MAPPING macro which is in
    426   // the generated header installer_util_strings.h.
    427 #define HANDLE_STRING(base_id, chrome_id) \
    428   case base_id: \
    429     resource_id = chrome_id; \
    430     break;
    431   DO_INSTALLER_STRING_MAPPING
    432 #undef HANDLE_STRING
    433   default:
    434     NOTREACHED();
    435   }
    436   if (resource_id)
    437     return l10n_util::GetStringUTF16(resource_id);
    438   return base::string16();
    439 }
    440 
    441 // static
    442 void ChromeBrowserMainPartsWin::SetupInstallerUtilStrings() {
    443   CR_DEFINE_STATIC_LOCAL(TranslationDelegate, delegate, ());
    444   installer::SetTranslationDelegate(&delegate);
    445 }
    446