1 /* 2 * Copyright 2012 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 WEBRTC_P2P_BASE_TRANSPORTDESCRIPTIONFACTORY_H_ 12 #define WEBRTC_P2P_BASE_TRANSPORTDESCRIPTIONFACTORY_H_ 13 14 #include "webrtc/base/rtccertificate.h" 15 #include "webrtc/p2p/base/transportdescription.h" 16 17 namespace rtc { 18 class SSLIdentity; 19 } 20 21 namespace cricket { 22 23 struct TransportOptions { TransportOptionsTransportOptions24 TransportOptions() : ice_restart(false), prefer_passive_role(false) {} 25 bool ice_restart; 26 bool prefer_passive_role; 27 }; 28 29 // Creates transport descriptions according to the supplied configuration. 30 // When creating answers, performs the appropriate negotiation 31 // of the various fields to determine the proper result. 32 class TransportDescriptionFactory { 33 public: 34 // Default ctor; use methods below to set configuration. 35 TransportDescriptionFactory(); secure()36 SecurePolicy secure() const { return secure_; } 37 // The certificate to use when setting up DTLS. certificate()38 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate() const { 39 return certificate_; 40 } 41 42 // Specifies the transport security policy to use. set_secure(SecurePolicy s)43 void set_secure(SecurePolicy s) { secure_ = s; } 44 // Specifies the certificate to use (only used when secure != SEC_DISABLED). set_certificate(const rtc::scoped_refptr<rtc::RTCCertificate> & certificate)45 void set_certificate( 46 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) { 47 certificate_ = certificate; 48 } 49 50 // Creates a transport description suitable for use in an offer. 51 TransportDescription* CreateOffer(const TransportOptions& options, 52 const TransportDescription* current_description) const; 53 // Create a transport description that is a response to an offer. 54 TransportDescription* CreateAnswer( 55 const TransportDescription* offer, 56 const TransportOptions& options, 57 const TransportDescription* current_description) const; 58 59 private: 60 bool SetSecurityInfo(TransportDescription* description, 61 ConnectionRole role) const; 62 63 SecurePolicy secure_; 64 rtc::scoped_refptr<rtc::RTCCertificate> certificate_; 65 }; 66 67 } // namespace cricket 68 69 #endif // WEBRTC_P2P_BASE_TRANSPORTDESCRIPTIONFACTORY_H_ 70