1 /*
2  *  Copyright 2018 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef PC_PEER_CONNECTION_INTERNAL_H_
12 #define PC_PEER_CONNECTION_INTERNAL_H_
13 
14 #include <map>
15 #include <memory>
16 #include <set>
17 #include <string>
18 #include <vector>
19 
20 #include "api/peer_connection_interface.h"
21 #include "call/call.h"
22 #include "pc/rtp_data_channel.h"
23 #include "pc/rtp_transceiver.h"
24 #include "pc/sctp_data_channel.h"
25 
26 namespace webrtc {
27 
28 // Internal interface for extra PeerConnection methods.
29 class PeerConnectionInternal : public PeerConnectionInterface {
30  public:
31   virtual rtc::Thread* network_thread() const = 0;
32   virtual rtc::Thread* worker_thread() const = 0;
33 
34   // The SDP session ID as defined by RFC 3264.
35   virtual std::string session_id() const = 0;
36 
37   // Returns true if we were the initial offerer.
38   virtual bool initial_offerer() const = 0;
39 
40   virtual std::vector<
41       rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>>>
42   GetTransceiversInternal() const = 0;
43 
44   virtual sigslot::signal1<RtpDataChannel*>& SignalRtpDataChannelCreated() = 0;
45   virtual sigslot::signal1<SctpDataChannel*>&
46   SignalSctpDataChannelCreated() = 0;
47 
48   // Only valid when using deprecated RTP data channels.
49   virtual cricket::RtpDataChannel* rtp_data_channel() const = 0;
50 
51   // Call on the network thread to fetch stats for all the data channels.
52   // TODO(tommi): Make pure virtual after downstream updates.
GetDataChannelStats()53   virtual std::vector<DataChannelStats> GetDataChannelStats() const {
54     return {};
55   }
56 
57   virtual absl::optional<std::string> sctp_transport_name() const = 0;
58 
59   virtual cricket::CandidateStatsList GetPooledCandidateStats() const = 0;
60 
61   // Returns a map from MID to transport name for all active media sections.
62   virtual std::map<std::string, std::string> GetTransportNamesByMid() const = 0;
63 
64   // Returns a map from transport name to transport stats for all given
65   // transport names.
66   virtual std::map<std::string, cricket::TransportStats>
67   GetTransportStatsByNames(const std::set<std::string>& transport_names) = 0;
68 
69   virtual Call::Stats GetCallStats() = 0;
70 
71   virtual bool GetLocalCertificate(
72       const std::string& transport_name,
73       rtc::scoped_refptr<rtc::RTCCertificate>* certificate) = 0;
74   virtual std::unique_ptr<rtc::SSLCertChain> GetRemoteSSLCertChain(
75       const std::string& transport_name) = 0;
76 
77   // Returns true if there was an ICE restart initiated by the remote offer.
78   virtual bool IceRestartPending(const std::string& content_name) const = 0;
79 
80   // Returns true if the ICE restart flag above was set, and no ICE restart has
81   // occurred yet for this transport (by applying a local description with
82   // changed ufrag/password). If the transport has been deleted as a result of
83   // bundling, returns false.
84   virtual bool NeedsIceRestart(const std::string& content_name) const = 0;
85 
86   // Get SSL role for an arbitrary m= section (handles bundling correctly).
87   virtual bool GetSslRole(const std::string& content_name,
88                           rtc::SSLRole* role) = 0;
89 };
90 
91 }  // namespace webrtc
92 
93 #endif  // PC_PEER_CONNECTION_INTERNAL_H_
94