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/infobar_service.h"
16 #include "chrome/browser/infobars/simple_alert_infobar_delegate.h"
17 #include "chrome/browser/lifetime/application_lifetime.h"
18 #include "chrome/browser/metrics/metrics_services_manager.h"
19 #include "chrome/browser/plugins/plugin_finder.h"
20 #include "chrome/browser/plugins/plugin_infobar_delegates.h"
21 #include "chrome/browser/profiles/profile.h"
22 #include "chrome/browser/ui/tab_modal_confirm_dialog.h"
23 #include "chrome/common/render_messages.h"
24 #include "chrome/common/url_constants.h"
25 #include "chrome/grit/generated_resources.h"
26 #include "components/infobars/core/confirm_infobar_delegate.h"
27 #include "components/infobars/core/infobar.h"
28 #include "content/public/browser/plugin_service.h"
29 #include "content/public/browser/render_frame_host.h"
30 #include "content/public/browser/render_view_host.h"
31 #include "content/public/browser/web_contents.h"
32 #include "content/public/browser/web_contents_delegate.h"
33 #include "content/public/common/webplugininfo.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
ConfirmInstallDialogDelegate(content::WebContents * web_contents,PluginInstaller * installer,scoped_ptr<PluginMetadata> plugin_metadata)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
GetTitle()92 base::string16 ConfirmInstallDialogDelegate::GetTitle() {
93 return l10n_util::GetStringFUTF16(
94 IDS_PLUGIN_CONFIRM_INSTALL_DIALOG_TITLE, plugin_metadata_->name());
95 }
96
GetDialogMessage()97 base::string16 ConfirmInstallDialogDelegate::GetDialogMessage() {
98 return l10n_util::GetStringFUTF16(IDS_PLUGIN_CONFIRM_INSTALL_DIALOG_MSG,
99 plugin_metadata_->name());
100 }
101
GetAcceptButtonTitle()102 base::string16 ConfirmInstallDialogDelegate::GetAcceptButtonTitle() {
103 return l10n_util::GetStringUTF16(
104 IDS_PLUGIN_CONFIRM_INSTALL_DIALOG_ACCEPT_BUTTON);
105 }
106
OnAccepted()107 void ConfirmInstallDialogDelegate::OnAccepted() {
108 installer()->StartInstalling(plugin_metadata_->plugin_url(), web_contents_);
109 }
110
OnCanceled()111 void ConfirmInstallDialogDelegate::OnCanceled() {
112 }
113
DownloadStarted()114 void ConfirmInstallDialogDelegate::DownloadStarted() {
115 Cancel();
116 }
117
OnlyWeakObserversLeft()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
Create(InfoBarService * infobar_service,content::NavigationController * controller,const base::string16 & message)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
ReloadPluginInfoBarDelegate(content::NavigationController * controller,const base::string16 & message)157 ReloadPluginInfoBarDelegate::ReloadPluginInfoBarDelegate(
158 content::NavigationController* controller,
159 const base::string16& message)
160 : controller_(controller),
161 message_(message) {}
162
~ReloadPluginInfoBarDelegate()163 ReloadPluginInfoBarDelegate::~ReloadPluginInfoBarDelegate(){ }
164
GetIconID() const165 int ReloadPluginInfoBarDelegate::GetIconID() const {
166 return IDR_INFOBAR_PLUGIN_CRASHED;
167 }
168
GetMessageText() const169 base::string16 ReloadPluginInfoBarDelegate::GetMessageText() const {
170 return message_;
171 }
172
GetButtons() const173 int ReloadPluginInfoBarDelegate::GetButtons() const {
174 return BUTTON_OK;
175 }
176
GetButtonLabel(InfoBarButton button) const177 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
Accept()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:
PluginPlaceholderHost(PluginObserver * observer,int routing_id,base::string16 plugin_name,PluginInstaller * installer)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:
DownloadStarted()217 virtual void DownloadStarted() OVERRIDE {
218 observer_->Send(new ChromeViewMsg_StartedDownloadingPlugin(routing_id_));
219 }
220
DownloadError(const std::string & msg)221 virtual void DownloadError(const std::string& msg) OVERRIDE {
222 observer_->Send(new ChromeViewMsg_ErrorDownloadingPlugin(routing_id_, msg));
223 }
224
DownloadCancelled()225 virtual void DownloadCancelled() OVERRIDE {
226 observer_->Send(new ChromeViewMsg_CancelledDownloadingPlugin(routing_id_));
227 }
228
DownloadFinished()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
PluginObserver(content::WebContents * web_contents)241 PluginObserver::PluginObserver(content::WebContents* web_contents)
242 : content::WebContentsObserver(web_contents),
243 weak_ptr_factory_(this) {
244 }
245
~PluginObserver()246 PluginObserver::~PluginObserver() {
247 #if defined(ENABLE_PLUGIN_INSTALLATION)
248 STLDeleteValues(&plugin_placeholders_);
249 #endif
250 }
251
RenderFrameCreated(content::RenderFrameHost * render_frame_host)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
PluginCrashed(const base::FilePath & plugin_path,base::ProcessId plugin_pid)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
OnMessageReceived(const IPC::Message & message,content::RenderFrameHost * render_frame_host)332 bool PluginObserver::OnMessageReceived(
333 const IPC::Message& message,
334 content::RenderFrameHost* render_frame_host) {
335 IPC_BEGIN_MESSAGE_MAP(PluginObserver, message)
336 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_BlockedOutdatedPlugin,
337 OnBlockedOutdatedPlugin)
338 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_BlockedUnauthorizedPlugin,
339 OnBlockedUnauthorizedPlugin)
340 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_NPAPINotSupported,
341 OnNPAPINotSupported)
342 #if defined(ENABLE_PLUGIN_INSTALLATION)
343 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_FindMissingPlugin,
344 OnFindMissingPlugin)
345 #endif
346
347 IPC_MESSAGE_UNHANDLED(return false)
348 IPC_END_MESSAGE_MAP()
349
350 return true;
351 }
352
OnMessageReceived(const IPC::Message & message)353 bool PluginObserver::OnMessageReceived(const IPC::Message& message) {
354 IPC_BEGIN_MESSAGE_MAP(PluginObserver, message)
355 #if defined(ENABLE_PLUGIN_INSTALLATION)
356 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_RemovePluginPlaceholderHost,
357 OnRemovePluginPlaceholderHost)
358 #endif
359 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_OpenAboutPlugins,
360 OnOpenAboutPlugins)
361 IPC_MESSAGE_HANDLER(ChromeViewHostMsg_CouldNotLoadPlugin,
362 OnCouldNotLoadPlugin)
363
364 IPC_MESSAGE_UNHANDLED(return false)
365 IPC_END_MESSAGE_MAP()
366
367 return true;
368 }
369
OnBlockedUnauthorizedPlugin(const base::string16 & name,const std::string & identifier)370 void PluginObserver::OnBlockedUnauthorizedPlugin(
371 const base::string16& name,
372 const std::string& identifier) {
373 UnauthorizedPluginInfoBarDelegate::Create(
374 InfoBarService::FromWebContents(web_contents()),
375 Profile::FromBrowserContext(web_contents()->GetBrowserContext())->
376 GetHostContentSettingsMap(),
377 name, identifier);
378 }
379
OnBlockedOutdatedPlugin(int placeholder_id,const std::string & identifier)380 void PluginObserver::OnBlockedOutdatedPlugin(int placeholder_id,
381 const std::string& identifier) {
382 #if defined(ENABLE_PLUGIN_INSTALLATION)
383 PluginFinder* finder = PluginFinder::GetInstance();
384 // Find plugin to update.
385 PluginInstaller* installer = NULL;
386 scoped_ptr<PluginMetadata> plugin;
387 if (finder->FindPluginWithIdentifier(identifier, &installer, &plugin)) {
388 plugin_placeholders_[placeholder_id] = new PluginPlaceholderHost(
389 this, placeholder_id, plugin->name(), installer);
390 OutdatedPluginInfoBarDelegate::Create(InfoBarService::FromWebContents(
391 web_contents()), installer, plugin.Pass());
392 } else {
393 NOTREACHED();
394 }
395 #else
396 // If we don't support third-party plug-in installation, we shouldn't have
397 // outdated plug-ins.
398 NOTREACHED();
399 #endif // defined(ENABLE_PLUGIN_INSTALLATION)
400 }
401
402 #if defined(ENABLE_PLUGIN_INSTALLATION)
OnFindMissingPlugin(int placeholder_id,const std::string & mime_type)403 void PluginObserver::OnFindMissingPlugin(int placeholder_id,
404 const std::string& mime_type) {
405 std::string lang = "en-US"; // Oh yes.
406 scoped_ptr<PluginMetadata> plugin_metadata;
407 PluginInstaller* installer = NULL;
408 bool found_plugin = PluginFinder::GetInstance()->FindPlugin(
409 mime_type, lang, &installer, &plugin_metadata);
410 if (!found_plugin) {
411 Send(new ChromeViewMsg_DidNotFindMissingPlugin(placeholder_id));
412 return;
413 }
414 DCHECK(installer);
415 DCHECK(plugin_metadata.get());
416
417 plugin_placeholders_[placeholder_id] =
418 new PluginPlaceholderHost(this, placeholder_id, plugin_metadata->name(),
419 installer);
420 PluginInstallerInfoBarDelegate::Create(
421 InfoBarService::FromWebContents(web_contents()), installer,
422 plugin_metadata.Pass(),
423 base::Bind(&PluginObserver::InstallMissingPlugin,
424 weak_ptr_factory_.GetWeakPtr(), installer));
425 }
426
InstallMissingPlugin(PluginInstaller * installer,const PluginMetadata * plugin_metadata)427 void PluginObserver::InstallMissingPlugin(
428 PluginInstaller* installer,
429 const PluginMetadata* plugin_metadata) {
430 if (plugin_metadata->url_for_display()) {
431 installer->OpenDownloadURL(plugin_metadata->plugin_url(), web_contents());
432 } else {
433 TabModalConfirmDialog::Create(
434 new ConfirmInstallDialogDelegate(
435 web_contents(), installer, plugin_metadata->Clone()),
436 web_contents());
437 }
438 }
439
OnRemovePluginPlaceholderHost(int placeholder_id)440 void PluginObserver::OnRemovePluginPlaceholderHost(int placeholder_id) {
441 std::map<int, PluginPlaceholderHost*>::iterator it =
442 plugin_placeholders_.find(placeholder_id);
443 if (it == plugin_placeholders_.end()) {
444 NOTREACHED();
445 return;
446 }
447 delete it->second;
448 plugin_placeholders_.erase(it);
449 }
450 #endif // defined(ENABLE_PLUGIN_INSTALLATION)
451
OnOpenAboutPlugins()452 void PluginObserver::OnOpenAboutPlugins() {
453 web_contents()->OpenURL(OpenURLParams(
454 GURL(chrome::kChromeUIPluginsURL),
455 content::Referrer(web_contents()->GetURL(),
456 blink::WebReferrerPolicyDefault),
457 NEW_FOREGROUND_TAB, ui::PAGE_TRANSITION_AUTO_BOOKMARK, false));
458 }
459
OnCouldNotLoadPlugin(const base::FilePath & plugin_path)460 void PluginObserver::OnCouldNotLoadPlugin(const base::FilePath& plugin_path) {
461 g_browser_process->GetMetricsServicesManager()->OnPluginLoadingError(
462 plugin_path);
463 base::string16 plugin_name =
464 PluginService::GetInstance()->GetPluginDisplayNameByPath(plugin_path);
465 SimpleAlertInfoBarDelegate::Create(
466 InfoBarService::FromWebContents(web_contents()),
467 IDR_INFOBAR_PLUGIN_CRASHED,
468 l10n_util::GetStringFUTF16(IDS_PLUGIN_INITIALIZATION_ERROR_PROMPT,
469 plugin_name),
470 true);
471 }
472
OnNPAPINotSupported(const std::string & identifier)473 void PluginObserver::OnNPAPINotSupported(const std::string& identifier) {
474 #if defined(OS_WIN) && defined(ENABLE_PLUGIN_INSTALLATION)
475 #if !defined(USE_AURA)
476 DCHECK(base::win::IsMetroProcess());
477 #endif
478
479 Profile* profile =
480 Profile::FromBrowserContext(web_contents()->GetBrowserContext());
481 if (profile->IsOffTheRecord())
482 return;
483 HostContentSettingsMap* content_settings =
484 profile->GetHostContentSettingsMap();
485 if (content_settings->GetContentSetting(
486 web_contents()->GetURL(),
487 web_contents()->GetURL(),
488 CONTENT_SETTINGS_TYPE_METRO_SWITCH_TO_DESKTOP,
489 std::string()) == CONTENT_SETTING_BLOCK)
490 return;
491
492 scoped_ptr<PluginMetadata> plugin;
493 bool ret = PluginFinder::GetInstance()->FindPluginWithIdentifier(
494 identifier, NULL, &plugin);
495 DCHECK(ret);
496
497 PluginMetroModeInfoBarDelegate::Create(
498 InfoBarService::FromWebContents(web_contents()),
499 PluginMetroModeInfoBarDelegate::DESKTOP_MODE_REQUIRED, plugin->name());
500 #endif
501 }
502