src/chrome/browser/task_manager/extension_process_resource_provider.cc

   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/profiles/profile.h"
  14 #include "chrome/browser/profiles/profile_manager.h"
  15 #include "chrome/browser/task_manager/resource_provider.h"
  16 #include "chrome/browser/task_manager/task_manager.h"
  17 #include "chrome/browser/task_manager/task_manager_util.h"
  18 #include "content/public/browser/notification_details.h"
  19 #include "content/public/browser/notification_service.h"
  20 #include "content/public/browser/render_frame_host.h"
  21 #include "content/public/browser/render_process_host.h"
  22 #include "content/public/browser/render_view_host.h"
  23 #include "content/public/browser/site_instance.h"
  24 #include "content/public/browser/web_contents.h"
  25 #include "extensions/browser/extension_system.h"
  26 #include "extensions/browser/process_manager.h"
  27 #include "extensions/browser/view_type_utils.h"
  28 #include "extensions/common/extension.h"
  29 #include "grit/theme_resources.h"
  30 #include "ui/base/l10n/l10n_util.h"
  31 #include "ui/base/resource/resource_bundle.h"
  32 #include "ui/gfx/image/image_skia.h"
  33
  34 using content::WebContents;
  35 using extensions::Extension;
  36
  37 namespace task_manager {
  38
  39 class ExtensionProcessResource : public Resource {
  40  public:
  41   explicit ExtensionProcessResource(
  42       content::RenderViewHost* render_view_host);
  43   virtual ~ExtensionProcessResource();
  44
  45   // Resource methods:
  46   virtual base::string16 GetTitle() const OVERRIDE;
  47   virtual base::string16 GetProfileName() const OVERRIDE;
  48   virtual gfx::ImageSkia GetIcon() const OVERRIDE;
  49   virtual base::ProcessHandle GetProcess() const OVERRIDE;
  50   virtual int GetUniqueChildProcessId() const OVERRIDE;
  51   virtual Type GetType() const OVERRIDE;
  52   virtual bool CanInspect() const OVERRIDE;
  53   virtual void Inspect() const OVERRIDE;
  54   virtual bool SupportNetworkUsage() const OVERRIDE;
  55   virtual void SetSupportNetworkUsage() OVERRIDE;
  56   virtual const extensions::Extension* GetExtension() const OVERRIDE;
  57
  58   // Returns the pid of the extension process.
  59   int process_id() const { return pid_; }
  60
  61   // Returns true if the associated extension has a background page.
  62   virtual bool IsBackground() const OVERRIDE;
  63
  64  private:
  65   // The icon painted for the extension process.
  66   static gfx::ImageSkia* default_icon_;
  67
  68   content::RenderViewHost* render_view_host_;
  69
  70   // Cached data about the extension.
  71   base::ProcessHandle process_handle_;
  72   int pid_;
  73   int unique_process_id_;
  74   base::string16 title_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(ExtensionProcessResource);
  77 };
  78
  79 gfx::ImageSkia* ExtensionProcessResource::default_icon_ = NULL;
  80
  81 ExtensionProcessResource::ExtensionProcessResource(
  82     content::RenderViewHost* render_view_host)
  83     : render_view_host_(render_view_host) {
  84   if (!default_icon_) {
  85     ResourceBundle& rb = ResourceBundle::GetSharedInstance();
  86     default_icon_ = rb.GetImageSkiaNamed(IDR_PLUGINS_FAVICON);
  87   }
  88   process_handle_ = render_view_host_->GetProcess()->GetHandle();
  89   unique_process_id_ = render_view_host->GetProcess()->GetID();
  90   pid_ = base::GetProcId(process_handle_);
  91   base::string16 extension_name = base::UTF8ToUTF16(GetExtension()->name());
  92   DCHECK(!extension_name.empty());
  93
  94   Profile* profile = Profile::FromBrowserContext(
  95       render_view_host->GetProcess()->GetBrowserContext());
  96   int message_id = util::GetMessagePrefixID(
  97       GetExtension()->is_app(),
  98       true,  // is_extension
  99       profile->IsOffTheRecord(),
 100       false,  // is_prerender
 101       IsBackground());
 102   title_ = l10n_util::GetStringFUTF16(message_id, extension_name);
 103 }
 104
 105 ExtensionProcessResource::~ExtensionProcessResource() {
 106 }
 107
 108 base::string16 ExtensionProcessResource::GetTitle() const {
 109   return title_;
 110 }
 111
 112 base::string16 ExtensionProcessResource::GetProfileName() const {
 113   return util::GetProfileNameFromInfoCache(
 114       Profile::FromBrowserContext(
 115           render_view_host_->GetProcess()->GetBrowserContext()));
 116 }
 117
 118 gfx::ImageSkia ExtensionProcessResource::GetIcon() const {
 119   return *default_icon_;
 120 }
 121
 122 base::ProcessHandle ExtensionProcessResource::GetProcess() const {
 123   return process_handle_;
 124 }
 125
 126 int ExtensionProcessResource::GetUniqueChildProcessId() const {
 127   return unique_process_id_;
 128 }
 129
 130 Resource::Type ExtensionProcessResource::GetType() const {
 131   return EXTENSION;
 132 }
 133
 134 bool ExtensionProcessResource::CanInspect() const {
 135   return true;
 136 }
 137
 138 void ExtensionProcessResource::Inspect() const {
 139   DevToolsWindow::OpenDevToolsWindow(render_view_host_);
 140 }
 141
 142 bool ExtensionProcessResource::SupportNetworkUsage() const {
 143   return true;
 144 }
 145
 146 void ExtensionProcessResource::SetSupportNetworkUsage() {
 147   NOTREACHED();
 148 }
 149
 150 const Extension* ExtensionProcessResource::GetExtension() const {
 151   Profile* profile = Profile::FromBrowserContext(
 152       render_view_host_->GetProcess()->GetBrowserContext());
 153   extensions::ProcessManager* process_manager =
 154       extensions::ExtensionSystem::Get(profile)->process_manager();
 155   return process_manager->GetExtensionForRenderViewHost(render_view_host_);
 156 }
 157
 158 bool 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
 169 ExtensionProcessResourceProvider::
 170     ExtensionProcessResourceProvider(TaskManager* task_manager)
 171     : task_manager_(task_manager),
 172       updating_(false) {
 173 }
 174
 175 ExtensionProcessResourceProvider::~ExtensionProcessResourceProvider() {
 176 }
 177
 178 Resource* ExtensionProcessResourceProvider::GetResource(
 179     int origin_pid,
 180     int child_id,
 181     int route_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   content::RenderFrameHost* rfh =
 188       content::RenderFrameHost::FromID(child_id, route_id);
 189   content::WebContents* web_contents =
 190       content::WebContents::FromRenderFrameHost(rfh);
 191
 192   for (ExtensionRenderViewHostMap::iterator i = resources_.begin();
 193        i != resources_.end(); i++) {
 194     content::WebContents* view_contents =
 195         content::WebContents::FromRenderViewHost(i->first);
 196     if (web_contents == view_contents)
 197       return i->second;
 198   }
 199
 200   // Can happen if the page went away while a network request was being
 201   // performed.
 202   return NULL;
 203 }
 204
 205 void ExtensionProcessResourceProvider::StartUpdating() {
 206   DCHECK(!updating_);
 207   updating_ = true;
 208
 209   // Add all the existing extension views from all Profiles, including those
 210   // from incognito split mode.
 211   ProfileManager* profile_manager = g_browser_process->profile_manager();
 212   std::vector<Profile*> profiles(profile_manager->GetLoadedProfiles());
 213   size_t num_default_profiles = profiles.size();
 214   for (size_t i = 0; i < num_default_profiles; ++i) {
 215     if (profiles[i]->HasOffTheRecordProfile()) {
 216       profiles.push_back(profiles[i]->GetOffTheRecordProfile());
 217     }
 218   }
 219
 220   for (size_t i = 0; i < profiles.size(); ++i) {
 221     extensions::ProcessManager* process_manager =
 222         extensions::ExtensionSystem::Get(profiles[i])->process_manager();
 223     if (process_manager) {
 224       const extensions::ProcessManager::ViewSet all_views =
 225           process_manager->GetAllViews();
 226       extensions::ProcessManager::ViewSet::const_iterator jt =
 227           all_views.begin();
 228       for (; jt != all_views.end(); ++jt) {
 229         content::RenderViewHost* rvh = *jt;
 230         // Don't add dead extension processes.
 231         if (!rvh->IsRenderViewLive())
 232           continue;
 233
 234         AddToTaskManager(rvh);
 235       }
 236     }
 237   }
 238
 239   // Register for notifications about extension process changes.
 240   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_VIEW_REGISTERED,
 241                  content::NotificationService::AllBrowserContextsAndSources());
 242   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
 243                  content::NotificationService::AllBrowserContextsAndSources());
 244   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_VIEW_UNREGISTERED,
 245                  content::NotificationService::AllBrowserContextsAndSources());
 246 }
 247
 248 void ExtensionProcessResourceProvider::StopUpdating() {
 249   DCHECK(updating_);
 250   updating_ = false;
 251
 252   // Unregister for notifications about extension process changes.
 253   registrar_.Remove(
 254       this, chrome::NOTIFICATION_EXTENSION_VIEW_REGISTERED,
 255       content::NotificationService::AllBrowserContextsAndSources());
 256   registrar_.Remove(
 257       this, chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
 258       content::NotificationService::AllBrowserContextsAndSources());
 259   registrar_.Remove(
 260       this, chrome::NOTIFICATION_EXTENSION_VIEW_UNREGISTERED,
 261       content::NotificationService::AllBrowserContextsAndSources());
 262
 263   // Delete all the resources.
 264   STLDeleteContainerPairSecondPointers(resources_.begin(), resources_.end());
 265
 266   resources_.clear();
 267 }
 268
 269 void ExtensionProcessResourceProvider::Observe(
 270     int type,
 271     const content::NotificationSource& source,
 272     const content::NotificationDetails& details) {
 273   switch (type) {
 274     case chrome::NOTIFICATION_EXTENSION_VIEW_REGISTERED:
 275       AddToTaskManager(
 276           content::Details<content::RenderViewHost>(details).ptr());
 277       break;
 278     case chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED:
 279       RemoveFromTaskManager(
 280           content::Details<extensions::ExtensionHost>(details).ptr()->
 281           render_view_host());
 282       break;
 283     case chrome::NOTIFICATION_EXTENSION_VIEW_UNREGISTERED:
 284       RemoveFromTaskManager(
 285           content::Details<content::RenderViewHost>(details).ptr());
 286       break;
 287     default:
 288       NOTREACHED() << "Unexpected notification.";
 289       return;
 290   }
 291 }
 292
 293 bool ExtensionProcessResourceProvider::
 294     IsHandledByThisProvider(content::RenderViewHost* render_view_host) {
 295   WebContents* web_contents = WebContents::FromRenderViewHost(render_view_host);
 296   // Don't add WebContents that belong to a guest (those are handled by
 297   // GuestResourceProvider). Otherwise they will be added twice, and
 298   // in this case they will have the app's name as a title (due to the
 299   // ExtensionProcessResource constructor).
 300   if (web_contents->GetRenderProcessHost()->IsGuest())
 301     return false;
 302   extensions::ViewType view_type = extensions::GetViewType(web_contents);
 303   // Don't add WebContents (those are handled by
 304   // TabContentsResourceProvider) or background contents (handled
 305   // by BackgroundResourceProvider).
 306 #if defined(USE_ASH)
 307   return (view_type != extensions::VIEW_TYPE_TAB_CONTENTS &&
 308           view_type != extensions::VIEW_TYPE_BACKGROUND_CONTENTS);
 309 #else
 310   return (view_type != extensions::VIEW_TYPE_TAB_CONTENTS &&
 311           view_type != extensions::VIEW_TYPE_BACKGROUND_CONTENTS &&
 312           view_type != extensions::VIEW_TYPE_PANEL);
 313 #endif  // USE_ASH
 314 }
 315
 316 void ExtensionProcessResourceProvider::AddToTaskManager(
 317     content::RenderViewHost* render_view_host) {
 318   if (!IsHandledByThisProvider(render_view_host))
 319     return;
 320
 321   ExtensionProcessResource* resource =
 322       new ExtensionProcessResource(render_view_host);
 323   if (resources_.find(render_view_host) != resources_.end())
 324     return;
 325   resources_[render_view_host] = resource;
 326   task_manager_->AddResource(resource);
 327 }
 328
 329 void ExtensionProcessResourceProvider::RemoveFromTaskManager(
 330     content::RenderViewHost* render_view_host) {
 331   if (!updating_)
 332     return;
 333   std::map<content::RenderViewHost*, ExtensionProcessResource*>
 334       ::iterator iter = resources_.find(render_view_host);
 335   if (iter == resources_.end())
 336     return;
 337
 338   // Remove the resource from the Task Manager.
 339   ExtensionProcessResource* resource = iter->second;
 340   task_manager_->RemoveResource(resource);
 341
 342   // Remove it from the provider.
 343   resources_.erase(iter);
 344
 345   // Finally, delete the resource.
 346   delete resource;
 347 }
 348
 349 }  // namespace task_manager