src/chrome/browser/plugins/plugin_observer.cc

   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/plugins/plugin_observer.h"
   6
   7 #include "base/auto_reset.h"
   8 #include "base/bind.h"
   9 #include "base/debug/crash_logging.h"
  10 #include "base/metrics/histogram.h"
  11 #include "base/stl_util.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/browser/content_settings/host_content_settings_map.h"
  15 #include "chrome/browser/infobars/confirm_infobar_delegate.h"
  16 #include "chrome/browser/infobars/infobar_service.h"
  17 #include "chrome/browser/infobars/simple_alert_infobar_delegate.h"
  18 #include "chrome/browser/lifetime/application_lifetime.h"
  19 #include "chrome/browser/metrics/metrics_service.h"
  20 #include "chrome/browser/plugins/plugin_finder.h"
  21 #include "chrome/browser/plugins/plugin_infobar_delegates.h"
  22 #include "chrome/browser/profiles/profile.h"
  23 #include "chrome/browser/ui/tab_modal_confirm_dialog.h"
  24 #include "chrome/common/render_messages.h"
  25 #include "chrome/common/url_constants.h"
  26 #include "components/infobars/core/infobar.h"
  27 #include "content/public/browser/plugin_service.h"
  28 #include "content/public/browser/render_frame_host.h"
  29 #include "content/public/browser/render_view_host.h"
  30 #include "content/public/browser/web_contents.h"
  31 #include "content/public/browser/web_contents_delegate.h"
  32 #include "content/public/common/webplugininfo.h"
  33 #include "grit/generated_resources.h"
  34 #include "grit/theme_resources.h"
  35 #include "ui/base/l10n/l10n_util.h"
  36
  37 #if defined(ENABLE_PLUGIN_INSTALLATION)
  38 #if defined(OS_WIN)
  39 #include "base/win/metro.h"
  40 #endif
  41 #include "chrome/browser/plugins/plugin_installer.h"
  42 #include "chrome/browser/plugins/plugin_installer_observer.h"
  43 #include "chrome/browser/ui/tab_modal_confirm_dialog_delegate.h"
  44 #endif  // defined(ENABLE_PLUGIN_INSTALLATION)
  45
  46 using content::OpenURLParams;
  47 using content::PluginService;
  48 using content::Referrer;
  49 using content::WebContents;
  50
  51 DEFINE_WEB_CONTENTS_USER_DATA_KEY(PluginObserver);
  52
  53 namespace {
  54
  55 #if defined(ENABLE_PLUGIN_INSTALLATION)
  56
  57 // ConfirmInstallDialogDelegate ------------------------------------------------
  58
  59 class ConfirmInstallDialogDelegate : public TabModalConfirmDialogDelegate,
  60                                      public WeakPluginInstallerObserver {
  61  public:
  62   ConfirmInstallDialogDelegate(content::WebContents* web_contents,
  63                                PluginInstaller* installer,
  64                                scoped_ptr<PluginMetadata> plugin_metadata);
  65
  66   // TabModalConfirmDialogDelegate methods:
  67   virtual base::string16 GetTitle() OVERRIDE;
  68   virtual base::string16 GetDialogMessage() OVERRIDE;
  69   virtual base::string16 GetAcceptButtonTitle() OVERRIDE;
  70   virtual void OnAccepted() OVERRIDE;
  71   virtual void OnCanceled() OVERRIDE;
  72
  73   // WeakPluginInstallerObserver methods:
  74   virtual void DownloadStarted() OVERRIDE;
  75   virtual void OnlyWeakObserversLeft() OVERRIDE;
  76
  77  private:
  78   content::WebContents* web_contents_;
  79   scoped_ptr<PluginMetadata> plugin_metadata_;
  80 };
  81
  82 ConfirmInstallDialogDelegate::ConfirmInstallDialogDelegate(
  83     content::WebContents* web_contents,
  84     PluginInstaller* installer,
  85     scoped_ptr<PluginMetadata> plugin_metadata)
  86     : TabModalConfirmDialogDelegate(web_contents),
  87       WeakPluginInstallerObserver(installer),
  88       web_contents_(web_contents),
  89       plugin_metadata_(plugin_metadata.Pass()) {
  90 }
  91
  92 base::string16 ConfirmInstallDialogDelegate::GetTitle() {
  93   return l10n_util::GetStringFUTF16(
  94       IDS_PLUGIN_CONFIRM_INSTALL_DIALOG_TITLE, plugin_metadata_->name());
  95 }
  96
  97 base::string16 ConfirmInstallDialogDelegate::GetDialogMessage() {
  98   return l10n_util::GetStringFUTF16(IDS_PLUGIN_CONFIRM_INSTALL_DIALOG_MSG,
  99                                     plugin_metadata_->name());
 100 }
 101
 102 base::string16 ConfirmInstallDialogDelegate::GetAcceptButtonTitle() {
 103   return l10n_util::GetStringUTF16(
 104       IDS_PLUGIN_CONFIRM_INSTALL_DIALOG_ACCEPT_BUTTON);
 105 }
 106
 107 void ConfirmInstallDialogDelegate::OnAccepted() {
 108   installer()->StartInstalling(plugin_metadata_->plugin_url(), web_contents_);
 109 }
 110
 111 void ConfirmInstallDialogDelegate::OnCanceled() {
 112 }
 113
 114 void ConfirmInstallDialogDelegate::DownloadStarted() {
 115   Cancel();
 116 }
 117
 118 void ConfirmInstallDialogDelegate::OnlyWeakObserversLeft() {
 119   Cancel();
 120 }
 121 #endif  // defined(ENABLE_PLUGIN_INSTALLATION)
 122
 123 // ReloadPluginInfoBarDelegate -------------------------------------------------
 124
 125 class ReloadPluginInfoBarDelegate : public ConfirmInfoBarDelegate {
 126  public:
 127   static void Create(InfoBarService* infobar_service,
 128                      content::NavigationController* controller,
 129                      const base::string16& message);
 130
 131  private:
 132   ReloadPluginInfoBarDelegate(content::NavigationController* controller,
 133                               const base::string16& message);
 134   virtual ~ReloadPluginInfoBarDelegate();
 135
 136   // ConfirmInfobarDelegate:
 137   virtual int GetIconID() const OVERRIDE;
 138   virtual base::string16 GetMessageText() const OVERRIDE;
 139   virtual int GetButtons() const OVERRIDE;
 140   virtual base::string16 GetButtonLabel(InfoBarButton button) const OVERRIDE;
 141   virtual bool Accept() OVERRIDE;
 142
 143   content::NavigationController* controller_;
 144   base::string16 message_;
 145 };
 146
 147 // static
 148 void ReloadPluginInfoBarDelegate::Create(
 149     InfoBarService* infobar_service,
 150     content::NavigationController* controller,
 151     const base::string16& message) {
 152   infobar_service->AddInfoBar(
 153       ConfirmInfoBarDelegate::CreateInfoBar(scoped_ptr<ConfirmInfoBarDelegate>(
 154           new ReloadPluginInfoBarDelegate(controller, message))));
 155 }
 156
 157 ReloadPluginInfoBarDelegate::ReloadPluginInfoBarDelegate(
 158     content::NavigationController* controller,
 159     const base::string16& message)
 160     : controller_(controller),
 161       message_(message) {}
 162
 163 ReloadPluginInfoBarDelegate::~ReloadPluginInfoBarDelegate(){ }
 164
 165 int ReloadPluginInfoBarDelegate::GetIconID() const {
 166   return IDR_INFOBAR_PLUGIN_CRASHED;
 167 }
 168
 169 base::string16 ReloadPluginInfoBarDelegate::GetMessageText() const {
 170   return message_;
 171 }
 172
 173 int ReloadPluginInfoBarDelegate::GetButtons() const {
 174   return BUTTON_OK;
 175 }
 176
 177 base::string16 ReloadPluginInfoBarDelegate::GetButtonLabel(
 178     InfoBarButton button) const {
 179   DCHECK_EQ(BUTTON_OK, button);
 180   return l10n_util::GetStringUTF16(IDS_RELOAD_PAGE_WITH_PLUGIN);
 181 }
 182
 183 bool ReloadPluginInfoBarDelegate::Accept() {
 184   controller_->Reload(true);
 185   return true;
 186 }
 187
 188 }  // namespace
 189
 190 // PluginObserver -------------------------------------------------------------
 191
 192 #if defined(ENABLE_PLUGIN_INSTALLATION)
 193 class PluginObserver::PluginPlaceholderHost : public PluginInstallerObserver {
 194  public:
 195   PluginPlaceholderHost(PluginObserver* observer,
 196                         int routing_id,
 197                         base::string16 plugin_name,
 198                         PluginInstaller* installer)
 199       : PluginInstallerObserver(installer),
 200         observer_(observer),
 201         routing_id_(routing_id) {
 202     DCHECK(installer);
 203     switch (installer->state()) {
 204       case PluginInstaller::INSTALLER_STATE_IDLE: {
 205         observer->Send(new ChromeViewMsg_FoundMissingPlugin(routing_id_,
 206                                                             plugin_name));
 207         break;
 208       }
 209       case PluginInstaller::INSTALLER_STATE_DOWNLOADING: {
 210         DownloadStarted();
 211         break;
 212       }
 213     }
 214   }
 215
 216   // PluginInstallerObserver methods:
 217   virtual void DownloadStarted() OVERRIDE {
 218     observer_->Send(new ChromeViewMsg_StartedDownloadingPlugin(routing_id_));
 219   }
 220
 221   virtual void DownloadError(const std::string& msg) OVERRIDE {
 222     observer_->Send(new ChromeViewMsg_ErrorDownloadingPlugin(routing_id_, msg));
 223   }
 224
 225   virtual void DownloadCancelled() OVERRIDE {
 226     observer_->Send(new ChromeViewMsg_CancelledDownloadingPlugin(routing_id_));
 227   }
 228
 229   virtual void DownloadFinished() OVERRIDE {
 230     observer_->Send(new ChromeViewMsg_FinishedDownloadingPlugin(routing_id_));
 231   }
 232
 233  private:
 234   // Weak pointer; owns us.
 235   PluginObserver* observer_;
 236
 237   int routing_id_;
 238 };
 239 #endif  // defined(ENABLE_PLUGIN_INSTALLATION)
 240
 241 PluginObserver::PluginObserver(content::WebContents* web_contents)
 242     : content::WebContentsObserver(web_contents),
 243       weak_ptr_factory_(this) {
 244 }
 245
 246 PluginObserver::~PluginObserver() {
 247 #if defined(ENABLE_PLUGIN_INSTALLATION)
 248   STLDeleteValues(&plugin_placeholders_);
 249 #endif
 250 }
 251
 252 void PluginObserver::RenderFrameCreated(
 253     content::RenderFrameHost* render_frame_host) {
 254 #if defined(OS_WIN)
 255   // If the window belongs to the Ash desktop, before we navigate we need
 256   // to tell the renderview that NPAPI plugins are not supported so it does
 257   // not try to instantiate them. The final decision is actually done in
 258   // the IO thread by PluginInfoMessageFilter of this proces,s but it's more
 259   // complex to manage a map of Ash views in PluginInfoMessageFilter than
 260   // just telling the renderer via IPC.
 261
 262   // TODO(shrikant): Implement solution which will help associate
 263   // render_view_host/webcontents/view/window instance with host desktop.
 264   // Refer to issue http://crbug.com/317940.
 265   // When non-active tabs are restored they are not added in view/window parent
 266   // hierarchy (chrome::CreateRestoredTab/CreateParams). Normally we traverse
 267   // parent hierarchy to identify containing desktop (like in function
 268   // chrome::GetHostDesktopTypeForNativeView).
 269   // Possible issue with chrome::GetActiveDesktop, is that it's global
 270   // state, which remembers last active desktop, which may break in scenarios
 271   // where we have instances on both Ash and Native desktop.
 272
 273   // We will do both tests. Both have some factor of unreliability.
 274   aura::Window* window = web_contents()->GetNativeView();
 275   if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH ||
 276       chrome::GetHostDesktopTypeForNativeView(window) ==
 277       chrome::HOST_DESKTOP_TYPE_ASH) {
 278     int routing_id = render_frame_host->GetRoutingID();
 279     render_frame_host->Send(new ChromeViewMsg_NPAPINotSupported(routing_id));
 280   }
 281 #endif
 282 }
 283
 284 void PluginObserver::PluginCrashed(const base::FilePath& plugin_path,
 285                                    base::ProcessId plugin_pid) {
 286   DCHECK(!plugin_path.value().empty());
 287
 288   base::string16 plugin_name =
 289       PluginService::GetInstance()->GetPluginDisplayNameByPath(plugin_path);
 290   base::string16 infobar_text;
 291 #if defined(OS_WIN)
 292   // Find out whether the plugin process is still alive.
 293   // Note: Although the chances are slim, it is possible that after the plugin
 294   // process died, |plugin_pid| has been reused by a new process. The
 295   // consequence is that we will display |IDS_PLUGIN_DISCONNECTED_PROMPT| rather
 296   // than |IDS_PLUGIN_CRASHED_PROMPT| to the user, which seems acceptable.
 297   base::ProcessHandle plugin_handle = base::kNullProcessHandle;
 298   bool open_result = base::OpenProcessHandleWithAccess(
 299       plugin_pid, PROCESS_QUERY_INFORMATION | SYNCHRONIZE, &plugin_handle);
 300   bool is_running = false;
 301   if (open_result) {
 302     is_running = base::GetTerminationStatus(plugin_handle, NULL) ==
 303         base::TERMINATION_STATUS_STILL_RUNNING;
 304     base::CloseProcessHandle(plugin_handle);
 305   }
 306
 307   if (is_running) {
 308     infobar_text = l10n_util::GetStringFUTF16(IDS_PLUGIN_DISCONNECTED_PROMPT,
 309                                               plugin_name);
 310     UMA_HISTOGRAM_COUNTS("Plugin.ShowDisconnectedInfobar", 1);
 311   } else {
 312     infobar_text = l10n_util::GetStringFUTF16(IDS_PLUGIN_CRASHED_PROMPT,
 313                                               plugin_name);
 314     UMA_HISTOGRAM_COUNTS("Plugin.ShowCrashedInfobar", 1);
 315   }
 316 #else
 317   // Calling the POSIX version of base::GetTerminationStatus() may affect other
 318   // code which is interested in the process termination status. (Please see the
 319   // comment of the function.) Therefore, a better way is needed to distinguish
 320   // disconnections from crashes.
 321   infobar_text = l10n_util::GetStringFUTF16(IDS_PLUGIN_CRASHED_PROMPT,
 322                                             plugin_name);
 323   UMA_HISTOGRAM_COUNTS("Plugin.ShowCrashedInfobar", 1);
 324 #endif
 325
 326   ReloadPluginInfoBarDelegate::Create(
 327       InfoBarService::FromWebContents(web_contents()),
 328       &web_contents()->GetController(),
 329       infobar_text);
 330 }
 331
 332 bool PluginObserver::OnMessageReceived(const IPC::Message& message) {
 333   IPC_BEGIN_MESSAGE_MAP(PluginObserver, message)
 334     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_BlockedOutdatedPlugin,
 335                         OnBlockedOutdatedPlugin)
 336     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_BlockedUnauthorizedPlugin,
 337                         OnBlockedUnauthorizedPlugin)
 338 #if defined(ENABLE_PLUGIN_INSTALLATION)
 339     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_FindMissingPlugin,
 340                         OnFindMissingPlugin)
 341     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_RemovePluginPlaceholderHost,
 342                         OnRemovePluginPlaceholderHost)
 343 #endif
 344     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_OpenAboutPlugins,
 345                         OnOpenAboutPlugins)
 346     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_CouldNotLoadPlugin,
 347                         OnCouldNotLoadPlugin)
 348     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_NPAPINotSupported,
 349                         OnNPAPINotSupported)
 350
 351     IPC_MESSAGE_UNHANDLED(return false)
 352   IPC_END_MESSAGE_MAP()
 353
 354   return true;
 355 }
 356
 357 void PluginObserver::OnBlockedUnauthorizedPlugin(
 358     const base::string16& name,
 359     const std::string& identifier) {
 360   UnauthorizedPluginInfoBarDelegate::Create(
 361       InfoBarService::FromWebContents(web_contents()),
 362       Profile::FromBrowserContext(web_contents()->GetBrowserContext())->
 363           GetHostContentSettingsMap(),
 364       name, identifier);
 365 }
 366
 367 void PluginObserver::OnBlockedOutdatedPlugin(int placeholder_id,
 368                                              const std::string& identifier) {
 369 #if defined(ENABLE_PLUGIN_INSTALLATION)
 370   PluginFinder* finder = PluginFinder::GetInstance();
 371   // Find plugin to update.
 372   PluginInstaller* installer = NULL;
 373   scoped_ptr<PluginMetadata> plugin;
 374   if (finder->FindPluginWithIdentifier(identifier, &installer, &plugin)) {
 375     plugin_placeholders_[placeholder_id] = new PluginPlaceholderHost(
 376         this, placeholder_id, plugin->name(), installer);
 377     OutdatedPluginInfoBarDelegate::Create(InfoBarService::FromWebContents(
 378         web_contents()), installer, plugin.Pass());
 379   } else {
 380     NOTREACHED();
 381   }
 382 #else
 383   // If we don't support third-party plug-in installation, we shouldn't have
 384   // outdated plug-ins.
 385   NOTREACHED();
 386 #endif  // defined(ENABLE_PLUGIN_INSTALLATION)
 387 }
 388
 389 #if defined(ENABLE_PLUGIN_INSTALLATION)
 390 void PluginObserver::OnFindMissingPlugin(int placeholder_id,
 391                                          const std::string& mime_type) {
 392   std::string lang = "en-US";  // Oh yes.
 393   scoped_ptr<PluginMetadata> plugin_metadata;
 394   PluginInstaller* installer = NULL;
 395   bool found_plugin = PluginFinder::GetInstance()->FindPlugin(
 396       mime_type, lang, &installer, &plugin_metadata);
 397   if (!found_plugin) {
 398     Send(new ChromeViewMsg_DidNotFindMissingPlugin(placeholder_id));
 399     return;
 400   }
 401   DCHECK(installer);
 402   DCHECK(plugin_metadata.get());
 403
 404   plugin_placeholders_[placeholder_id] =
 405       new PluginPlaceholderHost(this, placeholder_id, plugin_metadata->name(),
 406                                 installer);
 407   PluginInstallerInfoBarDelegate::Create(
 408       InfoBarService::FromWebContents(web_contents()), installer,
 409       plugin_metadata.Pass(),
 410       base::Bind(&PluginObserver::InstallMissingPlugin,
 411                  weak_ptr_factory_.GetWeakPtr(), installer));
 412 }
 413
 414 void PluginObserver::InstallMissingPlugin(
 415     PluginInstaller* installer,
 416     const PluginMetadata* plugin_metadata) {
 417   if (plugin_metadata->url_for_display()) {
 418     installer->OpenDownloadURL(plugin_metadata->plugin_url(), web_contents());
 419   } else {
 420     TabModalConfirmDialog::Create(
 421         new ConfirmInstallDialogDelegate(
 422             web_contents(), installer, plugin_metadata->Clone()),
 423         web_contents());
 424   }
 425 }
 426
 427 void PluginObserver::OnRemovePluginPlaceholderHost(int placeholder_id) {
 428   std::map<int, PluginPlaceholderHost*>::iterator it =
 429       plugin_placeholders_.find(placeholder_id);
 430   if (it == plugin_placeholders_.end()) {
 431     NOTREACHED();
 432     return;
 433   }
 434   delete it->second;
 435   plugin_placeholders_.erase(it);
 436 }
 437 #endif  // defined(ENABLE_PLUGIN_INSTALLATION)
 438
 439 void PluginObserver::OnOpenAboutPlugins() {
 440   web_contents()->OpenURL(OpenURLParams(
 441       GURL(chrome::kChromeUIPluginsURL),
 442       content::Referrer(web_contents()->GetURL(),
 443                         blink::WebReferrerPolicyDefault),
 444       NEW_FOREGROUND_TAB, content::PAGE_TRANSITION_AUTO_BOOKMARK, false));
 445 }
 446
 447 void PluginObserver::OnCouldNotLoadPlugin(const base::FilePath& plugin_path) {
 448   g_browser_process->metrics_service()->LogPluginLoadingError(plugin_path);
 449   base::string16 plugin_name =
 450       PluginService::GetInstance()->GetPluginDisplayNameByPath(plugin_path);
 451   SimpleAlertInfoBarDelegate::Create(
 452       InfoBarService::FromWebContents(web_contents()),
 453       IDR_INFOBAR_PLUGIN_CRASHED,
 454       l10n_util::GetStringFUTF16(IDS_PLUGIN_INITIALIZATION_ERROR_PROMPT,
 455                                  plugin_name),
 456       true);
 457 }
 458
 459 void PluginObserver::OnNPAPINotSupported(const std::string& identifier) {
 460 #if defined(OS_WIN) && defined(ENABLE_PLUGIN_INSTALLATION)
 461 #if !defined(USE_AURA)
 462   DCHECK(base::win::IsMetroProcess());
 463 #endif
 464
 465   Profile* profile =
 466       Profile::FromBrowserContext(web_contents()->GetBrowserContext());
 467   if (profile->IsOffTheRecord())
 468     return;
 469   HostContentSettingsMap* content_settings =
 470       profile->GetHostContentSettingsMap();
 471   if (content_settings->GetContentSetting(
 472       web_contents()->GetURL(),
 473       web_contents()->GetURL(),
 474       CONTENT_SETTINGS_TYPE_METRO_SWITCH_TO_DESKTOP,
 475       std::string()) == CONTENT_SETTING_BLOCK)
 476     return;
 477
 478   scoped_ptr<PluginMetadata> plugin;
 479   bool ret = PluginFinder::GetInstance()->FindPluginWithIdentifier(
 480       identifier, NULL, &plugin);
 481   DCHECK(ret);
 482
 483   PluginMetroModeInfoBarDelegate::Create(
 484       InfoBarService::FromWebContents(web_contents()),
 485       PluginMetroModeInfoBarDelegate::DESKTOP_MODE_REQUIRED, plugin->name());
 486 #endif
 487 }