<webview>: Move name attribute to chrome
[chromium-blink-merge.git] / remoting / host / signaling_connector.h
blob6e683b7e138216bc5ef614f13a7c22f375595e25
1 // Copyright (c) 2012 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.
5 #ifndef REMOTING_HOST_SIGNALING_CONNECTOR_H_
6 #define REMOTING_HOST_SIGNALING_CONNECTOR_H_
8 #include "base/basictypes.h"
9 #include "base/memory/weak_ptr.h"
10 #include "base/threading/non_thread_safe.h"
11 #include "base/timer/timer.h"
12 #include "net/base/network_change_notifier.h"
13 #include "remoting/host/oauth_token_getter.h"
14 #include "remoting/jingle_glue/xmpp_signal_strategy.h"
16 namespace remoting {
18 class DnsBlackholeChecker;
20 // SignalingConnector listens for SignalStrategy status notifications
21 // and attempts to keep it connected when possible. When signalling is
22 // not connected it keeps trying to reconnect it until it is
23 // connected. It limits connection attempt rate using exponential
24 // backoff. It also monitors network state and reconnects signalling
25 // whenever connection type changes or IP address changes.
26 class SignalingConnector
27 : public base::SupportsWeakPtr<SignalingConnector>,
28 public base::NonThreadSafe,
29 public SignalStrategy::Listener,
30 public net::NetworkChangeNotifier::ConnectionTypeObserver,
31 public net::NetworkChangeNotifier::IPAddressObserver {
32 public:
33 // The |auth_failed_callback| is called when authentication fails.
34 SignalingConnector(
35 XmppSignalStrategy* signal_strategy,
36 scoped_ptr<DnsBlackholeChecker> dns_blackhole_checker,
37 const base::Closure& auth_failed_callback);
38 virtual ~SignalingConnector();
40 // May be called immediately after the constructor to enable OAuth
41 // access token updating.
42 // |oauth_token_getter| must outlive SignalingConnector.
43 void EnableOAuth(OAuthTokenGetter* oauth_token_getter);
45 // OAuthTokenGetter callback.
46 void OnAccessToken(OAuthTokenGetter::Status status,
47 const std::string& user_email,
48 const std::string& access_token);
50 // SignalStrategy::Listener interface.
51 virtual void OnSignalStrategyStateChange(
52 SignalStrategy::State state) OVERRIDE;
53 virtual bool OnSignalStrategyIncomingStanza(
54 const buzz::XmlElement* stanza) OVERRIDE;
56 // NetworkChangeNotifier::ConnectionTypeObserver interface.
57 virtual void OnConnectionTypeChanged(
58 net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
60 // NetworkChangeNotifier::IPAddressObserver interface.
61 virtual void OnIPAddressChanged() OVERRIDE;
63 private:
64 void OnNetworkError();
65 void ScheduleTryReconnect();
66 void ResetAndTryReconnect();
67 void TryReconnect();
68 void OnDnsBlackholeCheckerDone(bool allow);
70 XmppSignalStrategy* signal_strategy_;
71 base::Closure auth_failed_callback_;
72 scoped_ptr<DnsBlackholeChecker> dns_blackhole_checker_;
74 OAuthTokenGetter* oauth_token_getter_;
76 // Number of times we tried to connect without success.
77 int reconnect_attempts_;
79 base::OneShotTimer<SignalingConnector> timer_;
81 DISALLOW_COPY_AND_ASSIGN(SignalingConnector);
84 } // namespace remoting
86 #endif // REMOTING_HOST_SIGNALING_CONNECTOR_H_