1// Copyright 2013 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/task_manager/extension_process_resource_provider.h"
6
7#include "base/strings/string16.h"
8#include "base/strings/utf_string_conversions.h"
9#include "chrome/browser/browser_process.h"
10#include "chrome/browser/chrome_notification_types.h"
11#include "chrome/browser/devtools/devtools_window.h"
12#include "chrome/browser/extensions/extension_host.h"
13#include "chrome/browser/extensions/extension_process_manager.h"
14#include "chrome/browser/extensions/extension_system.h"
15#include "chrome/browser/profiles/profile.h"
16#include "chrome/browser/profiles/profile_manager.h"
17#include "chrome/browser/task_manager/resource_provider.h"
18#include "chrome/browser/task_manager/task_manager.h"
19#include "chrome/browser/task_manager/task_manager_util.h"
20#include "chrome/common/extensions/extension.h"
21#include "content/public/browser/notification_details.h"
22#include "content/public/browser/notification_service.h"
23#include "content/public/browser/render_process_host.h"
24#include "content/public/browser/render_view_host.h"
25#include "content/public/browser/site_instance.h"
26#include "content/public/browser/web_contents.h"
27#include "extensions/browser/view_type_utils.h"
28#include "grit/theme_resources.h"
29#include "ui/base/l10n/l10n_util.h"
30#include "ui/base/resource/resource_bundle.h"
31#include "ui/gfx/image/image_skia.h"
32
33using content::WebContents;
34using extensions::Extension;
35
36namespace task_manager {
37
38class ExtensionProcessResource : public Resource {
39 public:
40  explicit ExtensionProcessResource(
41      content::RenderViewHost* render_view_host);
42  virtual ~ExtensionProcessResource();
43
44  // Resource methods:
45  virtual string16 GetTitle() const OVERRIDE;
46  virtual string16 GetProfileName() const OVERRIDE;
47  virtual gfx::ImageSkia GetIcon() const OVERRIDE;
48  virtual base::ProcessHandle GetProcess() const OVERRIDE;
49  virtual int GetUniqueChildProcessId() const OVERRIDE;
50  virtual Type GetType() const OVERRIDE;
51  virtual bool CanInspect() const OVERRIDE;
52  virtual void Inspect() const OVERRIDE;
53  virtual bool SupportNetworkUsage() const OVERRIDE;
54  virtual void SetSupportNetworkUsage() OVERRIDE;
55  virtual const extensions::Extension* GetExtension() const OVERRIDE;
56
57  // Returns the pid of the extension process.
58  int process_id() const { return pid_; }
59
60  // Returns true if the associated extension has a background page.
61  virtual bool IsBackground() const OVERRIDE;
62
63 private:
64  // The icon painted for the extension process.
65  static gfx::ImageSkia* default_icon_;
66
67  content::RenderViewHost* render_view_host_;
68
69  // Cached data about the extension.
70  base::ProcessHandle process_handle_;
71  int pid_;
72  int unique_process_id_;
73  string16 title_;
74
75  DISALLOW_COPY_AND_ASSIGN(ExtensionProcessResource);
76};
77
78gfx::ImageSkia* ExtensionProcessResource::default_icon_ = NULL;
79
80ExtensionProcessResource::ExtensionProcessResource(
81    content::RenderViewHost* render_view_host)
82    : render_view_host_(render_view_host) {
83  if (!default_icon_) {
84    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
85    default_icon_ = rb.GetImageSkiaNamed(IDR_PLUGINS_FAVICON);
86  }
87  process_handle_ = render_view_host_->GetProcess()->GetHandle();
88  unique_process_id_ = render_view_host->GetProcess()->GetID();
89  pid_ = base::GetProcId(process_handle_);
90  string16 extension_name = UTF8ToUTF16(GetExtension()->name());
91  DCHECK(!extension_name.empty());
92
93  Profile* profile = Profile::FromBrowserContext(
94      render_view_host->GetProcess()->GetBrowserContext());
95  int message_id = util::GetMessagePrefixID(
96      GetExtension()->is_app(),
97      true,  // is_extension
98      profile->IsOffTheRecord(),
99      false,  // is_prerender
100      false,  // is_instant_overlay
101      IsBackground());
102  title_ = l10n_util::GetStringFUTF16(message_id, extension_name);
103}
104
105ExtensionProcessResource::~ExtensionProcessResource() {
106}
107
108string16 ExtensionProcessResource::GetTitle() const {
109  return title_;
110}
111
112string16 ExtensionProcessResource::GetProfileName() const {
113  return util::GetProfileNameFromInfoCache(
114      Profile::FromBrowserContext(
115          render_view_host_->GetProcess()->GetBrowserContext()));
116}
117
118gfx::ImageSkia ExtensionProcessResource::GetIcon() const {
119  return *default_icon_;
120}
121
122base::ProcessHandle ExtensionProcessResource::GetProcess() const {
123  return process_handle_;
124}
125
126int ExtensionProcessResource::GetUniqueChildProcessId() const {
127  return unique_process_id_;
128}
129
130Resource::Type ExtensionProcessResource::GetType() const {
131  return EXTENSION;
132}
133
134bool ExtensionProcessResource::CanInspect() const {
135  return true;
136}
137
138void ExtensionProcessResource::Inspect() const {
139  DevToolsWindow::OpenDevToolsWindow(render_view_host_);
140}
141
142bool ExtensionProcessResource::SupportNetworkUsage() const {
143  return true;
144}
145
146void ExtensionProcessResource::SetSupportNetworkUsage() {
147  NOTREACHED();
148}
149
150const Extension* ExtensionProcessResource::GetExtension() const {
151  Profile* profile = Profile::FromBrowserContext(
152      render_view_host_->GetProcess()->GetBrowserContext());
153  ExtensionProcessManager* process_manager =
154      extensions::ExtensionSystem::Get(profile)->process_manager();
155  return process_manager->GetExtensionForRenderViewHost(render_view_host_);
156}
157
158bool ExtensionProcessResource::IsBackground() const {
159  WebContents* web_contents =
160      WebContents::FromRenderViewHost(render_view_host_);
161  extensions::ViewType view_type = extensions::GetViewType(web_contents);
162  return view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
163}
164
165////////////////////////////////////////////////////////////////////////////////
166// ExtensionProcessResourceProvider class
167////////////////////////////////////////////////////////////////////////////////
168
169ExtensionProcessResourceProvider::
170    ExtensionProcessResourceProvider(TaskManager* task_manager)
171    : task_manager_(task_manager),
172      updating_(false) {
173}
174
175ExtensionProcessResourceProvider::~ExtensionProcessResourceProvider() {
176}
177
178Resource* ExtensionProcessResourceProvider::GetResource(
179    int origin_pid,
180    int render_process_host_id,
181    int routing_id) {
182  // If an origin PID was specified, the request is from a plugin, not the
183  // render view host process
184  if (origin_pid)
185    return NULL;
186
187  for (ExtensionRenderViewHostMap::iterator i = resources_.begin();
188       i != resources_.end(); i++) {
189    if (i->first->GetSiteInstance()->GetProcess()->GetID() ==
190            render_process_host_id &&
191        i->first->GetRoutingID() == routing_id)
192      return i->second;
193  }
194
195  // Can happen if the page went away while a network request was being
196  // performed.
197  return NULL;
198}
199
200void ExtensionProcessResourceProvider::StartUpdating() {
201  DCHECK(!updating_);
202  updating_ = true;
203
204  // Add all the existing extension views from all Profiles, including those
205  // from incognito split mode.
206  ProfileManager* profile_manager = g_browser_process->profile_manager();
207  std::vector<Profile*> profiles(profile_manager->GetLoadedProfiles());
208  size_t num_default_profiles = profiles.size();
209  for (size_t i = 0; i < num_default_profiles; ++i) {
210    if (profiles[i]->HasOffTheRecordProfile()) {
211      profiles.push_back(profiles[i]->GetOffTheRecordProfile());
212    }
213  }
214
215  for (size_t i = 0; i < profiles.size(); ++i) {
216    ExtensionProcessManager* process_manager =
217        extensions::ExtensionSystem::Get(profiles[i])->process_manager();
218    if (process_manager) {
219      const ExtensionProcessManager::ViewSet all_views =
220          process_manager->GetAllViews();
221      ExtensionProcessManager::ViewSet::const_iterator jt = all_views.begin();
222      for (; jt != all_views.end(); ++jt) {
223        content::RenderViewHost* rvh = *jt;
224        // Don't add dead extension processes.
225        if (!rvh->IsRenderViewLive())
226          continue;
227
228        AddToTaskManager(rvh);
229      }
230    }
231  }
232
233  // Register for notifications about extension process changes.
234  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_VIEW_REGISTERED,
235                 content::NotificationService::AllBrowserContextsAndSources());
236  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
237                 content::NotificationService::AllBrowserContextsAndSources());
238  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_VIEW_UNREGISTERED,
239                 content::NotificationService::AllBrowserContextsAndSources());
240}
241
242void ExtensionProcessResourceProvider::StopUpdating() {
243  DCHECK(updating_);
244  updating_ = false;
245
246  // Unregister for notifications about extension process changes.
247  registrar_.Remove(
248      this, chrome::NOTIFICATION_EXTENSION_VIEW_REGISTERED,
249      content::NotificationService::AllBrowserContextsAndSources());
250  registrar_.Remove(
251      this, chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
252      content::NotificationService::AllBrowserContextsAndSources());
253  registrar_.Remove(
254      this, chrome::NOTIFICATION_EXTENSION_VIEW_UNREGISTERED,
255      content::NotificationService::AllBrowserContextsAndSources());
256
257  // Delete all the resources.
258  STLDeleteContainerPairSecondPointers(resources_.begin(), resources_.end());
259
260  resources_.clear();
261}
262
263void ExtensionProcessResourceProvider::Observe(
264    int type,
265    const content::NotificationSource& source,
266    const content::NotificationDetails& details) {
267  switch (type) {
268    case chrome::NOTIFICATION_EXTENSION_VIEW_REGISTERED:
269      AddToTaskManager(
270          content::Details<content::RenderViewHost>(details).ptr());
271      break;
272    case chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED:
273      RemoveFromTaskManager(
274          content::Details<extensions::ExtensionHost>(details).ptr()->
275          render_view_host());
276      break;
277    case chrome::NOTIFICATION_EXTENSION_VIEW_UNREGISTERED:
278      RemoveFromTaskManager(
279          content::Details<content::RenderViewHost>(details).ptr());
280      break;
281    default:
282      NOTREACHED() << "Unexpected notification.";
283      return;
284  }
285}
286
287bool ExtensionProcessResourceProvider::
288    IsHandledByThisProvider(content::RenderViewHost* render_view_host) {
289  WebContents* web_contents = WebContents::FromRenderViewHost(render_view_host);
290  // Don't add WebContents that belong to a guest (those are handled by
291  // GuestResourceProvider). Otherwise they will be added twice, and
292  // in this case they will have the app's name as a title (due to the
293  // ExtensionProcessResource constructor).
294  if (web_contents->GetRenderProcessHost()->IsGuest())
295    return false;
296  extensions::ViewType view_type = extensions::GetViewType(web_contents);
297  // Don't add WebContents (those are handled by
298  // TabContentsResourceProvider) or background contents (handled
299  // by BackgroundResourceProvider).
300#if defined(USE_ASH)
301  return (view_type != extensions::VIEW_TYPE_TAB_CONTENTS &&
302          view_type != extensions::VIEW_TYPE_BACKGROUND_CONTENTS);
303#else
304  return (view_type != extensions::VIEW_TYPE_TAB_CONTENTS &&
305          view_type != extensions::VIEW_TYPE_BACKGROUND_CONTENTS &&
306          view_type != extensions::VIEW_TYPE_PANEL);
307#endif  // USE_ASH
308}
309
310void ExtensionProcessResourceProvider::AddToTaskManager(
311    content::RenderViewHost* render_view_host) {
312  if (!IsHandledByThisProvider(render_view_host))
313    return;
314
315  ExtensionProcessResource* resource =
316      new ExtensionProcessResource(render_view_host);
317  DCHECK(resources_.find(render_view_host) == resources_.end());
318  resources_[render_view_host] = resource;
319  task_manager_->AddResource(resource);
320}
321
322void ExtensionProcessResourceProvider::RemoveFromTaskManager(
323    content::RenderViewHost* render_view_host) {
324  if (!updating_)
325    return;
326  std::map<content::RenderViewHost*, ExtensionProcessResource*>
327      ::iterator iter = resources_.find(render_view_host);
328  if (iter == resources_.end())
329    return;
330
331  // Remove the resource from the Task Manager.
332  ExtensionProcessResource* resource = iter->second;
333  task_manager_->RemoveResource(resource);
334
335  // Remove it from the provider.
336  resources_.erase(iter);
337
338  // Finally, delete the resource.
339  delete resource;
340}
341
342}  // namespace task_manager
343