1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef A_RTSP_CONNECTION_H_ 18 19 #define A_RTSP_CONNECTION_H_ 20 21 #include <media/stagefright/foundation/AHandler.h> 22 #include <media/stagefright/foundation/AString.h> 23 24 namespace android { 25 26 struct ABuffer; 27 28 struct ARTSPResponse : public RefBase { 29 unsigned long mStatusCode; 30 AString mStatusLine; 31 KeyedVector<AString,AString> mHeaders; 32 sp<ABuffer> mContent; 33 }; 34 35 struct ARTSPConnection : public AHandler { 36 ARTSPConnection(bool uidValid = false, uid_t uid = 0); 37 38 void connect(const char *url, const sp<AMessage> &reply); 39 void disconnect(const sp<AMessage> &reply); 40 41 void sendRequest(const char *request, const sp<AMessage> &reply); 42 43 void observeBinaryData(const sp<AMessage> &reply); 44 45 static bool ParseURL( 46 const char *url, AString *host, unsigned *port, AString *path, 47 AString *user, AString *pass); 48 49 protected: 50 virtual ~ARTSPConnection(); 51 virtual void onMessageReceived(const sp<AMessage> &msg); 52 53 private: 54 enum State { 55 DISCONNECTED, 56 CONNECTING, 57 CONNECTED, 58 }; 59 60 enum { 61 kWhatConnect = 'conn', 62 kWhatDisconnect = 'disc', 63 kWhatCompleteConnection = 'comc', 64 kWhatSendRequest = 'sreq', 65 kWhatReceiveResponse = 'rres', 66 kWhatObserveBinaryData = 'obin', 67 }; 68 69 enum AuthType { 70 NONE, 71 BASIC, 72 DIGEST 73 }; 74 75 static const int64_t kSelectTimeoutUs; 76 77 bool mUIDValid; 78 uid_t mUID; 79 State mState; 80 AString mUser, mPass; 81 AuthType mAuthType; 82 AString mNonce; 83 int mSocket; 84 int32_t mConnectionID; 85 int32_t mNextCSeq; 86 bool mReceiveResponseEventPending; 87 88 KeyedVector<int32_t, sp<AMessage> > mPendingRequests; 89 90 sp<AMessage> mObserveBinaryMessage; 91 92 AString mUserAgent; 93 94 void performDisconnect(); 95 96 void onConnect(const sp<AMessage> &msg); 97 void onDisconnect(const sp<AMessage> &msg); 98 void onCompleteConnection(const sp<AMessage> &msg); 99 void onSendRequest(const sp<AMessage> &msg); 100 void onReceiveResponse(); 101 102 void flushPendingRequests(); 103 void postReceiveReponseEvent(); 104 105 // Return false iff something went unrecoverably wrong. 106 bool receiveRTSPReponse(); 107 status_t receive(void *data, size_t size); 108 bool receiveLine(AString *line); 109 sp<ABuffer> receiveBinaryData(); 110 bool notifyResponseListener(const sp<ARTSPResponse> &response); 111 112 bool parseAuthMethod(const sp<ARTSPResponse> &response); 113 void addAuthentication(AString *request); 114 115 void addUserAgent(AString *request) const; 116 117 status_t findPendingRequest( 118 const sp<ARTSPResponse> &response, ssize_t *index) const; 119 120 bool handleServerRequest(const sp<ARTSPResponse> &request); 121 122 static bool ParseSingleUnsignedLong( 123 const char *from, unsigned long *x); 124 125 static void MakeUserAgent(AString *userAgent); 126 127 DISALLOW_EVIL_CONSTRUCTORS(ARTSPConnection); 128 }; 129 130 } // namespace android 131 132 #endif // A_RTSP_CONNECTION_H_ 133