content/child/notifications/notification_manager.cc

   1 // Copyright 2014 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 "content/child/notifications/notification_manager.h"
   6
   7 #include <cmath>
   8
   9 #include "base/lazy_instance.h"
  10 #include "base/metrics/histogram_macros.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "base/thread_task_runner_handle.h"
  13 #include "base/threading/thread_local.h"
  14 #include "content/child/notifications/notification_data_conversions.h"
  15 #include "content/child/notifications/notification_dispatcher.h"
  16 #include "content/child/service_worker/web_service_worker_registration_impl.h"
  17 #include "content/child/thread_safe_sender.h"
  18 #include "content/child/worker_task_runner.h"
  19 #include "content/public/common/platform_notification_data.h"
  20 #include "third_party/WebKit/public/platform/WebSerializedOrigin.h"
  21 #include "third_party/WebKit/public/platform/modules/notifications/WebNotificationDelegate.h"
  22 #include "third_party/skia/include/core/SkBitmap.h"
  23
  24 using blink::WebNotificationPermission;
  25
  26 namespace content {
  27 namespace {
  28
  29 int CurrentWorkerId() {
  30   return WorkerTaskRunner::Instance()->CurrentWorkerId();
  31 }
  32
  33 }  // namespace
  34
  35 static base::LazyInstance<base::ThreadLocalPointer<NotificationManager>>::Leaky
  36     g_notification_manager_tls = LAZY_INSTANCE_INITIALIZER;
  37
  38 NotificationManager::NotificationManager(
  39     ThreadSafeSender* thread_safe_sender,
  40     base::SingleThreadTaskRunner* main_thread_task_runner,
  41     NotificationDispatcher* notification_dispatcher)
  42     : thread_safe_sender_(thread_safe_sender),
  43       notification_dispatcher_(notification_dispatcher),
  44       pending_notifications_(main_thread_task_runner) {
  45   g_notification_manager_tls.Pointer()->Set(this);
  46 }
  47
  48 NotificationManager::~NotificationManager() {
  49   g_notification_manager_tls.Pointer()->Set(nullptr);
  50 }
  51
  52 NotificationManager* NotificationManager::ThreadSpecificInstance(
  53     ThreadSafeSender* thread_safe_sender,
  54     base::SingleThreadTaskRunner* main_thread_task_runner,
  55     NotificationDispatcher* notification_dispatcher) {
  56   if (g_notification_manager_tls.Pointer()->Get())
  57     return g_notification_manager_tls.Pointer()->Get();
  58
  59   NotificationManager* manager = new NotificationManager(
  60       thread_safe_sender, main_thread_task_runner, notification_dispatcher);
  61   if (CurrentWorkerId())
  62     WorkerTaskRunner::Instance()->AddStopObserver(manager);
  63   return manager;
  64 }
  65
  66 void NotificationManager::OnWorkerRunLoopStopped() {
  67   delete this;
  68 }
  69
  70 void NotificationManager::show(
  71     const blink::WebSerializedOrigin& origin,
  72     const blink::WebNotificationData& notification_data,
  73     blink::WebNotificationDelegate* delegate) {
  74   if (notification_data.icon.isEmpty()) {
  75     DisplayPageNotification(origin, notification_data, delegate, SkBitmap());
  76     return;
  77   }
  78
  79   pending_notifications_.FetchPageNotificationResources(
  80       notification_data,
  81       delegate,
  82       base::Bind(&NotificationManager::DisplayPageNotification,
  83                  base::Unretained(this),  // this owns |pending_notifications_|
  84                  origin,
  85                  notification_data,
  86                  delegate));
  87 }
  88
  89 void NotificationManager::showPersistent(
  90     const blink::WebSerializedOrigin& origin,
  91     const blink::WebNotificationData& notification_data,
  92     blink::WebServiceWorkerRegistration* service_worker_registration,
  93     blink::WebNotificationShowCallbacks* callbacks) {
  94   DCHECK(service_worker_registration);
  95   int64_t service_worker_registration_id =
  96       static_cast<WebServiceWorkerRegistrationImpl*>(
  97           service_worker_registration)->registration_id();
  98
  99   scoped_ptr<blink::WebNotificationShowCallbacks> owned_callbacks(callbacks);
 100
 101   // Verify that the author-provided payload size does not exceed our limit.
 102   // This is an implementation-defined limit to prevent abuse of notification
 103   // data as a storage mechanism. A UMA histogram records the requested sizes,
 104   // which enables us to track how much data authors are attempting to store.
 105   //
 106   // If the size exceeds this limit, reject the showNotification() promise. This
 107   // is outside of the boundaries set by the specification, but it gives authors
 108   // an indication that something has gone wrong.
 109   size_t author_data_size = notification_data.data.size();
 110   UMA_HISTOGRAM_MEMORY_KB("Notifications.AuthorDataSizeKB",
 111                           static_cast<int>(ceil(author_data_size / 1024.0)));
 112
 113   if (author_data_size > PlatformNotificationData::kMaximumDeveloperDataSize) {
 114     owned_callbacks->onError();
 115     return;
 116   }
 117
 118   if (notification_data.icon.isEmpty()) {
 119     DisplayPersistentNotification(origin,
 120                                   notification_data,
 121                                   service_worker_registration_id,
 122                                   owned_callbacks.Pass(),
 123                                   SkBitmap());
 124     return;
 125   }
 126
 127   pending_notifications_.FetchPersistentNotificationResources(
 128       notification_data,
 129       base::Bind(&NotificationManager::DisplayPersistentNotification,
 130                  base::Unretained(this),  // this owns |pending_notifications_|
 131                  origin,
 132                  notification_data,
 133                  service_worker_registration_id,
 134                  base::Passed(&owned_callbacks)));
 135 }
 136
 137 void NotificationManager::getNotifications(
 138     const blink::WebString& filter_tag,
 139     blink::WebServiceWorkerRegistration* service_worker_registration,
 140     blink::WebNotificationGetCallbacks* callbacks) {
 141   DCHECK(service_worker_registration);
 142   DCHECK(callbacks);
 143
 144   WebServiceWorkerRegistrationImpl* service_worker_registration_impl =
 145       static_cast<WebServiceWorkerRegistrationImpl*>(
 146           service_worker_registration);
 147
 148   GURL origin = GURL(service_worker_registration_impl->scope()).GetOrigin();
 149   int64_t service_worker_registration_id =
 150       service_worker_registration_impl->registration_id();
 151
 152   // TODO(peter): GenerateNotificationId is more of a request id. Consider
 153   // renaming the method in the NotificationDispatcher if this makes sense.
 154   int request_id =
 155       notification_dispatcher_->GenerateNotificationId(CurrentWorkerId());
 156
 157   pending_get_notification_requests_.AddWithID(callbacks, request_id);
 158
 159   thread_safe_sender_->Send(
 160       new PlatformNotificationHostMsg_GetNotifications(
 161           request_id,
 162           service_worker_registration_id,
 163           origin,
 164           base::UTF16ToUTF8(filter_tag)));
 165 }
 166
 167 void NotificationManager::close(blink::WebNotificationDelegate* delegate) {
 168   if (pending_notifications_.CancelPageNotificationFetches(delegate))
 169     return;
 170
 171   for (auto& iter : active_page_notifications_) {
 172     if (iter.second != delegate)
 173       continue;
 174
 175     thread_safe_sender_->Send(
 176         new PlatformNotificationHostMsg_Close(iter.first));
 177     active_page_notifications_.erase(iter.first);
 178     return;
 179   }
 180
 181   // It should not be possible for Blink to call close() on a Notification which
 182   // does not exist in either the pending or active notification lists.
 183   NOTREACHED();
 184 }
 185
 186 void NotificationManager::closePersistent(
 187     const blink::WebSerializedOrigin& origin,
 188     int64_t persistent_notification_id) {
 189   thread_safe_sender_->Send(new PlatformNotificationHostMsg_ClosePersistent(
 190       GURL(origin.string()),
 191       persistent_notification_id));
 192 }
 193
 194 void NotificationManager::notifyDelegateDestroyed(
 195     blink::WebNotificationDelegate* delegate) {
 196   if (pending_notifications_.CancelPageNotificationFetches(delegate))
 197     return;
 198
 199   for (auto& iter : active_page_notifications_) {
 200     if (iter.second != delegate)
 201       continue;
 202
 203     active_page_notifications_.erase(iter.first);
 204     return;
 205   }
 206 }
 207
 208 WebNotificationPermission NotificationManager::checkPermission(
 209     const blink::WebSerializedOrigin& origin) {
 210   WebNotificationPermission permission =
 211       blink::WebNotificationPermissionAllowed;
 212   thread_safe_sender_->Send(new PlatformNotificationHostMsg_CheckPermission(
 213       GURL(origin.string()), &permission));
 214
 215   return permission;
 216 }
 217
 218 bool NotificationManager::OnMessageReceived(const IPC::Message& message) {
 219   bool handled = true;
 220   IPC_BEGIN_MESSAGE_MAP(NotificationManager, message)
 221     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidShow, OnDidShow);
 222     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidShowPersistent,
 223                         OnDidShowPersistent)
 224     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidClose, OnDidClose);
 225     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidClick, OnDidClick);
 226     IPC_MESSAGE_HANDLER(PlatformNotificationMsg_DidGetNotifications,
 227                         OnDidGetNotifications)
 228     IPC_MESSAGE_UNHANDLED(handled = false)
 229   IPC_END_MESSAGE_MAP()
 230
 231   return handled;
 232 }
 233
 234 void NotificationManager::OnDidShow(int notification_id) {
 235   const auto& iter = active_page_notifications_.find(notification_id);
 236   if (iter == active_page_notifications_.end())
 237     return;
 238
 239   iter->second->dispatchShowEvent();
 240 }
 241
 242 void NotificationManager::OnDidShowPersistent(int request_id, bool success) {
 243   blink::WebNotificationShowCallbacks* callbacks =
 244       pending_show_notification_requests_.Lookup(request_id);
 245   DCHECK(callbacks);
 246
 247   if (!callbacks)
 248     return;
 249
 250   if (success)
 251     callbacks->onSuccess();
 252   else
 253     callbacks->onError();
 254
 255   pending_show_notification_requests_.Remove(request_id);
 256 }
 257
 258 void NotificationManager::OnDidClose(int notification_id) {
 259   const auto& iter = active_page_notifications_.find(notification_id);
 260   if (iter == active_page_notifications_.end())
 261     return;
 262
 263   iter->second->dispatchCloseEvent();
 264   active_page_notifications_.erase(iter);
 265 }
 266
 267 void NotificationManager::OnDidClick(int notification_id) {
 268   const auto& iter = active_page_notifications_.find(notification_id);
 269   if (iter == active_page_notifications_.end())
 270     return;
 271
 272   iter->second->dispatchClickEvent();
 273 }
 274
 275 void NotificationManager::OnDidGetNotifications(
 276     int request_id,
 277     const std::vector<PersistentNotificationInfo>& notification_infos) {
 278   blink::WebNotificationGetCallbacks* callbacks =
 279       pending_get_notification_requests_.Lookup(request_id);
 280   DCHECK(callbacks);
 281   if (!callbacks)
 282     return;
 283
 284   scoped_ptr<blink::WebVector<blink::WebPersistentNotificationInfo>>
 285       notifications(new blink::WebVector<blink::WebPersistentNotificationInfo>(
 286           notification_infos.size()));
 287
 288   for (size_t i = 0; i < notification_infos.size(); ++i) {
 289     blink::WebPersistentNotificationInfo web_notification_info;
 290     web_notification_info.persistentId = notification_infos[i].first;
 291     web_notification_info.data =
 292         ToWebNotificationData(notification_infos[i].second);
 293
 294     (*notifications)[i] = web_notification_info;
 295   }
 296
 297   callbacks->onSuccess(notifications.release());
 298
 299   pending_get_notification_requests_.Remove(request_id);
 300 }
 301
 302 void NotificationManager::DisplayPageNotification(
 303     const blink::WebSerializedOrigin& origin,
 304     const blink::WebNotificationData& notification_data,
 305     blink::WebNotificationDelegate* delegate,
 306     const SkBitmap& icon) {
 307   int notification_id =
 308       notification_dispatcher_->GenerateNotificationId(CurrentWorkerId());
 309
 310   active_page_notifications_[notification_id] = delegate;
 311   thread_safe_sender_->Send(
 312       new PlatformNotificationHostMsg_Show(
 313           notification_id,
 314           GURL(origin.string()),
 315           icon,
 316           ToPlatformNotificationData(notification_data)));
 317 }
 318
 319 void NotificationManager::DisplayPersistentNotification(
 320     const blink::WebSerializedOrigin& origin,
 321     const blink::WebNotificationData& notification_data,
 322     int64_t service_worker_registration_id,
 323     scoped_ptr<blink::WebNotificationShowCallbacks> callbacks,
 324     const SkBitmap& icon) {
 325   // TODO(peter): GenerateNotificationId is more of a request id. Consider
 326   // renaming the method in the NotificationDispatcher if this makes sense.
 327   int request_id =
 328       notification_dispatcher_->GenerateNotificationId(CurrentWorkerId());
 329
 330   pending_show_notification_requests_.AddWithID(callbacks.release(),
 331                                                 request_id);
 332
 333   thread_safe_sender_->Send(
 334       new PlatformNotificationHostMsg_ShowPersistent(
 335           request_id,
 336           service_worker_registration_id,
 337           GURL(origin.string()),
 338           icon,
 339           ToPlatformNotificationData(notification_data)));
 340 }
 341
 342 }  // namespace content