|  | /* | 
|  | *  Copyright 2017 The WebRTC Project Authors. All rights reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #ifndef API_TURNCUSTOMIZER_H_ | 
|  | #define API_TURNCUSTOMIZER_H_ | 
|  |  | 
|  | #include <stdlib.h> | 
|  |  | 
|  | namespace cricket { | 
|  | class PortInterface; | 
|  | class StunMessage; | 
|  | }  // namespace cricket | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | class TurnCustomizer { | 
|  | public: | 
|  | // This is called before a TURN message is sent. | 
|  | // This could be used to add implementation specific attributes to a request. | 
|  | virtual void MaybeModifyOutgoingStunMessage( | 
|  | cricket::PortInterface* port, | 
|  | cricket::StunMessage* message) = 0; | 
|  |  | 
|  | // TURN can send data using channel data messages or Send indication. | 
|  | // This method should return false if |data| should be sent using | 
|  | // a Send indication instead of a ChannelData message, even if a | 
|  | // channel is bound. | 
|  | virtual bool AllowChannelData(cricket::PortInterface* port, | 
|  | const void* data, | 
|  | size_t size, | 
|  | bool payload) = 0; | 
|  |  | 
|  | virtual ~TurnCustomizer() {} | 
|  | }; | 
|  |  | 
|  | }  // namespace webrtc | 
|  |  | 
|  | #endif  // API_TURNCUSTOMIZER_H_ |