content/browser/media/webrtc_internals.cc

   1 // Copyright (c) 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 "content/browser/media/webrtc_internals.h"
   6
   7 #include "base/command_line.h"
   8 #include "content/browser/media/webrtc_internals_ui_observer.h"
   9 #include "content/public/browser/browser_thread.h"
  10 #include "content/public/browser/child_process_data.h"
  11 #include "content/public/browser/notification_service.h"
  12 #include "content/public/browser/notification_types.h"
  13 #include "content/public/browser/render_process_host.h"
  14 #include "content/public/browser/web_contents.h"
  15 #include "content/public/browser/web_contents_view.h"
  16 #include "content/public/common/content_switches.h"
  17
  18 using base::ProcessId;
  19 using std::string;
  20
  21 namespace content {
  22
  23 namespace {
  24 // Makes sure that |dict| has a ListValue under path "log".
  25 static base::ListValue* EnsureLogList(base::DictionaryValue* dict) {
  26   base::ListValue* log = NULL;
  27   if (!dict->GetList("log", &log)) {
  28     log = new base::ListValue();
  29     if (log)
  30       dict->Set("log", log);
  31   }
  32   return log;
  33 }
  34
  35 }  // namespace
  36
  37 WebRTCInternals::WebRTCInternals()
  38     : aec_dump_enabled_(false) {
  39   registrar_.Add(this, NOTIFICATION_RENDERER_PROCESS_TERMINATED,
  40                  NotificationService::AllBrowserContextsAndSources());
  41   BrowserChildProcessObserver::Add(this);
  42 // TODO(grunell): Shouldn't all the webrtc_internals* files be excluded from the
  43 // build if WebRTC is disabled?
  44 #if defined(ENABLE_WEBRTC)
  45   if (CommandLine::ForCurrentProcess()->HasSwitch(
  46           switches::kEnableWebRtcAecRecordings)) {
  47     aec_dump_enabled_ = true;
  48     aec_dump_file_path_ = CommandLine::ForCurrentProcess()->GetSwitchValuePath(
  49         switches::kEnableWebRtcAecRecordings);
  50   } else {
  51 #if defined(OS_CHROMEOS)
  52     aec_dump_file_path_ =
  53         base::FilePath(FILE_PATH_LITERAL("/tmp/audio.aecdump"));
  54 #elif defined(OS_ANDROID)
  55     aec_dump_file_path_ =
  56         base::FilePath(FILE_PATH_LITERAL("/sdcard/audio.aecdump"));
  57 #else
  58     aec_dump_file_path_ = base::FilePath(FILE_PATH_LITERAL("audio.aecdump"));
  59 #endif
  60   }
  61 #endif  // defined(ENABLE_WEBRTC)
  62 }
  63
  64 WebRTCInternals::~WebRTCInternals() {
  65   BrowserChildProcessObserver::Remove(this);
  66 }
  67
  68 WebRTCInternals* WebRTCInternals::GetInstance() {
  69   return Singleton<WebRTCInternals>::get();
  70 }
  71
  72 void WebRTCInternals::OnAddPeerConnection(int render_process_id,
  73                                           ProcessId pid,
  74                                           int lid,
  75                                           const string& url,
  76                                           const string& servers,
  77                                           const string& constraints) {
  78   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  79
  80   base::DictionaryValue* dict = new base::DictionaryValue();
  81   if (!dict)
  82     return;
  83
  84   dict->SetInteger("rid", render_process_id);
  85   dict->SetInteger("pid", static_cast<int>(pid));
  86   dict->SetInteger("lid", lid);
  87   dict->SetString("servers", servers);
  88   dict->SetString("constraints", constraints);
  89   dict->SetString("url", url);
  90   peer_connection_data_.Append(dict);
  91
  92   if (observers_.might_have_observers())
  93     SendUpdate("addPeerConnection", dict);
  94 }
  95
  96 void WebRTCInternals::OnRemovePeerConnection(ProcessId pid, int lid) {
  97   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  98   for (size_t i = 0; i < peer_connection_data_.GetSize(); ++i) {
  99     base::DictionaryValue* dict = NULL;
 100     peer_connection_data_.GetDictionary(i, &dict);
 101
 102     int this_pid = 0;
 103     int this_lid = 0;
 104     dict->GetInteger("pid", &this_pid);
 105     dict->GetInteger("lid", &this_lid);
 106
 107     if (this_pid != static_cast<int>(pid) || this_lid != lid)
 108       continue;
 109
 110     peer_connection_data_.Remove(i, NULL);
 111
 112     if (observers_.might_have_observers()) {
 113       base::DictionaryValue id;
 114       id.SetInteger("pid", static_cast<int>(pid));
 115       id.SetInteger("lid", lid);
 116       SendUpdate("removePeerConnection", &id);
 117     }
 118     break;
 119   }
 120 }
 121
 122 void WebRTCInternals::OnUpdatePeerConnection(
 123     ProcessId pid, int lid, const string& type, const string& value) {
 124   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 125
 126   for (size_t i = 0; i < peer_connection_data_.GetSize(); ++i) {
 127     base::DictionaryValue* record = NULL;
 128     peer_connection_data_.GetDictionary(i, &record);
 129
 130     int this_pid = 0, this_lid = 0;
 131     record->GetInteger("pid", &this_pid);
 132     record->GetInteger("lid", &this_lid);
 133
 134     if (this_pid != static_cast<int>(pid) || this_lid != lid)
 135       continue;
 136
 137     // Append the update to the end of the log.
 138     base::ListValue* log = EnsureLogList(record);
 139     if (!log)
 140       return;
 141
 142     base::DictionaryValue* log_entry = new base::DictionaryValue();
 143     if (!log_entry)
 144       return;
 145
 146     log_entry->SetString("type", type);
 147     log_entry->SetString("value", value);
 148     log->Append(log_entry);
 149
 150     if (observers_.might_have_observers()) {
 151       base::DictionaryValue update;
 152       update.SetInteger("pid", static_cast<int>(pid));
 153       update.SetInteger("lid", lid);
 154       update.SetString("type", type);
 155       update.SetString("value", value);
 156
 157       SendUpdate("updatePeerConnection", &update);
 158     }
 159     return;
 160   }
 161 }
 162
 163 void WebRTCInternals::OnAddStats(base::ProcessId pid, int lid,
 164                                  const base::ListValue& value) {
 165   if (!observers_.might_have_observers())
 166     return;
 167
 168   base::DictionaryValue dict;
 169   dict.SetInteger("pid", static_cast<int>(pid));
 170   dict.SetInteger("lid", lid);
 171
 172   base::ListValue* list = value.DeepCopy();
 173   if (!list)
 174     return;
 175
 176   dict.Set("reports", list);
 177
 178   SendUpdate("addStats", &dict);
 179 }
 180
 181 void WebRTCInternals::OnGetUserMedia(int rid,
 182                                      base::ProcessId pid,
 183                                      const std::string& origin,
 184                                      bool audio,
 185                                      bool video,
 186                                      const std::string& audio_constraints,
 187                                      const std::string& video_constraints) {
 188   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 189
 190   base::DictionaryValue* dict = new base::DictionaryValue();
 191   dict->SetInteger("rid", rid);
 192   dict->SetInteger("pid", static_cast<int>(pid));
 193   dict->SetString("origin", origin);
 194   if (audio)
 195     dict->SetString("audio", audio_constraints);
 196   if (video)
 197     dict->SetString("video", video_constraints);
 198
 199   get_user_media_requests_.Append(dict);
 200
 201   if (observers_.might_have_observers())
 202     SendUpdate("addGetUserMedia", dict);
 203 }
 204
 205 void WebRTCInternals::AddObserver(WebRTCInternalsUIObserver *observer) {
 206   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 207   observers_.AddObserver(observer);
 208 }
 209
 210 void WebRTCInternals::RemoveObserver(WebRTCInternalsUIObserver *observer) {
 211   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 212   observers_.RemoveObserver(observer);
 213
 214   // Disables the AEC recording if it is enabled and the last webrtc-internals
 215   // page is going away.
 216   if (aec_dump_enabled_ && !observers_.might_have_observers())
 217     DisableAecDump();
 218 }
 219
 220 void WebRTCInternals::UpdateObserver(WebRTCInternalsUIObserver* observer) {
 221   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 222   if (peer_connection_data_.GetSize() > 0)
 223     observer->OnUpdate("updateAllPeerConnections", &peer_connection_data_);
 224
 225   for (base::ListValue::iterator it = get_user_media_requests_.begin();
 226        it != get_user_media_requests_.end();
 227        ++it) {
 228     observer->OnUpdate("addGetUserMedia", *it);
 229   }
 230 }
 231
 232 void WebRTCInternals::EnableAecDump(content::WebContents* web_contents) {
 233 #if defined(ENABLE_WEBRTC)
 234   select_file_dialog_ = ui::SelectFileDialog::Create(this, NULL);
 235   select_file_dialog_->SelectFile(
 236       ui::SelectFileDialog::SELECT_SAVEAS_FILE,
 237       base::string16(),
 238       aec_dump_file_path_,
 239       NULL,
 240       0,
 241       FILE_PATH_LITERAL(""),
 242       web_contents->GetView()->GetTopLevelNativeWindow(),
 243       NULL);
 244 #endif
 245 }
 246
 247 void WebRTCInternals::DisableAecDump() {
 248 #if defined(ENABLE_WEBRTC)
 249   aec_dump_enabled_ = false;
 250   for (RenderProcessHost::iterator i(
 251            content::RenderProcessHost::AllHostsIterator());
 252        !i.IsAtEnd(); i.Advance()) {
 253     i.GetCurrentValue()->DisableAecDump();
 254   }
 255 #endif
 256 }
 257
 258 void WebRTCInternals::SendUpdate(const string& command, base::Value* value) {
 259   DCHECK(observers_.might_have_observers());
 260
 261   FOR_EACH_OBSERVER(WebRTCInternalsUIObserver,
 262                     observers_,
 263                     OnUpdate(command, value));
 264 }
 265
 266 void WebRTCInternals::BrowserChildProcessCrashed(
 267     const ChildProcessData& data) {
 268   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 269   OnRendererExit(data.id);
 270 }
 271
 272 void WebRTCInternals::Observe(int type,
 273                               const NotificationSource& source,
 274                               const NotificationDetails& details) {
 275   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 276   DCHECK_EQ(type, NOTIFICATION_RENDERER_PROCESS_TERMINATED);
 277   OnRendererExit(Source<RenderProcessHost>(source)->GetID());
 278 }
 279
 280 void WebRTCInternals::FileSelected(const base::FilePath& path,
 281                                    int /* unused_index */,
 282                                    void* /*unused_params */) {
 283 #if defined(ENABLE_WEBRTC)
 284   aec_dump_enabled_ = true;
 285   aec_dump_file_path_ = path;
 286   for (RenderProcessHost::iterator i(
 287            content::RenderProcessHost::AllHostsIterator());
 288        !i.IsAtEnd(); i.Advance()) {
 289     i.GetCurrentValue()->EnableAecDump(aec_dump_file_path_);
 290   }
 291 #endif
 292 }
 293
 294 void WebRTCInternals::OnRendererExit(int render_process_id) {
 295   // Iterates from the end of the list to remove the PeerConnections created
 296   // by the exitting renderer.
 297   for (int i = peer_connection_data_.GetSize() - 1; i >= 0; --i) {
 298     base::DictionaryValue* record = NULL;
 299     peer_connection_data_.GetDictionary(i, &record);
 300
 301     int this_rid = 0;
 302     record->GetInteger("rid", &this_rid);
 303
 304     if (this_rid == render_process_id) {
 305       if (observers_.might_have_observers()) {
 306         int lid = 0, pid = 0;
 307         record->GetInteger("lid", &lid);
 308         record->GetInteger("pid", &pid);
 309
 310         base::DictionaryValue update;
 311         update.SetInteger("lid", lid);
 312         update.SetInteger("pid", pid);
 313         SendUpdate("removePeerConnection", &update);
 314       }
 315       peer_connection_data_.Remove(i, NULL);
 316     }
 317   }
 318
 319   bool found_any = false;
 320   // Iterates from the end of the list to remove the getUserMedia requests
 321   // created by the exiting renderer.
 322   for (int i = get_user_media_requests_.GetSize() - 1; i >= 0; --i) {
 323     base::DictionaryValue* record = NULL;
 324     get_user_media_requests_.GetDictionary(i, &record);
 325
 326     int this_rid = 0;
 327     record->GetInteger("rid", &this_rid);
 328
 329     if (this_rid == render_process_id) {
 330       get_user_media_requests_.Remove(i, NULL);
 331       found_any = true;
 332     }
 333   }
 334
 335   if (found_any && observers_.might_have_observers()) {
 336     base::DictionaryValue update;
 337     update.SetInteger("rid", render_process_id);
 338     SendUpdate("removeGetUserMediaForRenderer", &update);
 339   }
 340 }
 341
 342 void WebRTCInternals::ResetForTesting() {
 343   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 344   observers_.Clear();
 345   peer_connection_data_.Clear();
 346   get_user_media_requests_.Clear();
 347   aec_dump_enabled_ = false;
 348 }
 349
 350 }  // namespace content