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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/media/webrtc_internals.h"
#include "content/browser/media/webrtc_internals_ui_observer.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_data.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_process_host.h"
using base::ProcessId;
using std::string;
namespace content {
namespace {
// Makes sure that |dict| has a ListValue under path "log".
static base::ListValue* EnsureLogList(base::DictionaryValue* dict) {
base::ListValue* log = NULL;
if (!dict->GetList("log", &log)) {
log = new base::ListValue();
if (log)
dict->Set("log", log);
}
return log;
}
} // namespace
WebRTCInternals::WebRTCInternals() : is_recording_rtp_(false) {
registrar_.Add(this, NOTIFICATION_RENDERER_PROCESS_TERMINATED,
NotificationService::AllBrowserContextsAndSources());
BrowserChildProcessObserver::Add(this);
}
WebRTCInternals::~WebRTCInternals() {
BrowserChildProcessObserver::Remove(this);
}
WebRTCInternals* WebRTCInternals::GetInstance() {
return Singleton<WebRTCInternals>::get();
}
void WebRTCInternals::OnAddPeerConnection(int render_process_id,
ProcessId pid,
int lid,
const string& url,
const string& servers,
const string& constraints) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
base::DictionaryValue* dict = new base::DictionaryValue();
if (!dict)
return;
dict->SetInteger("rid", render_process_id);
dict->SetInteger("pid", static_cast<int>(pid));
dict->SetInteger("lid", lid);
dict->SetString("servers", servers);
dict->SetString("constraints", constraints);
dict->SetString("url", url);
peer_connection_data_.Append(dict);
if (observers_.might_have_observers())
SendUpdate("addPeerConnection", dict);
}
void WebRTCInternals::OnRemovePeerConnection(ProcessId pid, int lid) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
for (size_t i = 0; i < peer_connection_data_.GetSize(); ++i) {
base::DictionaryValue* dict = NULL;
peer_connection_data_.GetDictionary(i, &dict);
int this_pid = 0;
int this_lid = 0;
dict->GetInteger("pid", &this_pid);
dict->GetInteger("lid", &this_lid);
if (this_pid != static_cast<int>(pid) || this_lid != lid)
continue;
peer_connection_data_.Remove(i, NULL);
if (observers_.might_have_observers()) {
base::DictionaryValue id;
id.SetInteger("pid", static_cast<int>(pid));
id.SetInteger("lid", lid);
SendUpdate("removePeerConnection", &id);
}
break;
}
}
void WebRTCInternals::OnUpdatePeerConnection(
ProcessId pid, int lid, const string& type, const string& value) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
for (size_t i = 0; i < peer_connection_data_.GetSize(); ++i) {
base::DictionaryValue* record = NULL;
peer_connection_data_.GetDictionary(i, &record);
int this_pid = 0, this_lid = 0;
record->GetInteger("pid", &this_pid);
record->GetInteger("lid", &this_lid);
if (this_pid != static_cast<int>(pid) || this_lid != lid)
continue;
// Append the update to the end of the log.
base::ListValue* log = EnsureLogList(record);
if (!log)
return;
base::DictionaryValue* log_entry = new base::DictionaryValue();
if (!log_entry)
return;
log_entry->SetString("type", type);
log_entry->SetString("value", value);
log->Append(log_entry);
if (observers_.might_have_observers()) {
base::DictionaryValue update;
update.SetInteger("pid", static_cast<int>(pid));
update.SetInteger("lid", lid);
update.SetString("type", type);
update.SetString("value", value);
SendUpdate("updatePeerConnection", &update);
}
return;
}
}
void WebRTCInternals::OnAddStats(base::ProcessId pid, int lid,
const base::ListValue& value) {
if (!observers_.might_have_observers())
return;
base::DictionaryValue dict;
dict.SetInteger("pid", static_cast<int>(pid));
dict.SetInteger("lid", lid);
base::ListValue* list = value.DeepCopy();
if (!list)
return;
dict.Set("reports", list);
SendUpdate("addStats", &dict);
}
void WebRTCInternals::AddObserver(WebRTCInternalsUIObserver *observer) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
observers_.AddObserver(observer);
}
void WebRTCInternals::RemoveObserver(WebRTCInternalsUIObserver *observer) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
observers_.RemoveObserver(observer);
}
void WebRTCInternals::SendAllUpdates() {
if (observers_.might_have_observers())
SendUpdate("updateAllPeerConnections", &peer_connection_data_);
}
void WebRTCInternals::StartRtpRecording() {
if (!is_recording_rtp_) {
is_recording_rtp_ = true;
// TODO(justinlin): start RTP recording.
}
}
void WebRTCInternals::StopRtpRecording() {
if (is_recording_rtp_) {
is_recording_rtp_ = false;
// TODO(justinlin): stop RTP recording.
}
}
void WebRTCInternals::SendUpdate(const string& command, base::Value* value) {
DCHECK(observers_.might_have_observers());
FOR_EACH_OBSERVER(WebRTCInternalsUIObserver,
observers_,
OnUpdate(command, value));
}
void WebRTCInternals::BrowserChildProcessCrashed(
const ChildProcessData& data) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
OnRendererExit(data.id);
}
void WebRTCInternals::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK_EQ(type, NOTIFICATION_RENDERER_PROCESS_TERMINATED);
OnRendererExit(Source<RenderProcessHost>(source)->GetID());
}
void WebRTCInternals::OnRendererExit(int render_process_id) {
// Iterates from the end of the list to remove the PeerConnections created
// by the exitting renderer.
for (int i = peer_connection_data_.GetSize() - 1; i >= 0; --i) {
base::DictionaryValue* record = NULL;
peer_connection_data_.GetDictionary(i, &record);
int this_rid = 0;
record->GetInteger("rid", &this_rid);
if (this_rid == render_process_id) {
if (observers_.might_have_observers()) {
int lid = 0, pid = 0;
record->GetInteger("lid", &lid);
record->GetInteger("pid", &pid);
base::DictionaryValue update;
update.SetInteger("lid", lid);
update.SetInteger("pid", pid);
SendUpdate("removePeerConnection", &update);
}
peer_connection_data_.Remove(i, NULL);
}
}
}
// TODO(justlin): Calls this method as necessary to update the recording status
// UI.
void WebRTCInternals::SendRtpRecordingUpdate() {
DCHECK(is_recording_rtp_);
base::DictionaryValue update;
// TODO(justinlin): Fill in |update| with values as appropriate.
SendUpdate("updateDumpStatus", &update);
}
} // namespace content
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