rtspclnt.h

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: rtspclnt.h,v 1.22.2.3 2004/07/13 17:15:04 ping Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
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 * Source License (the "RPSL") available at
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 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
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 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
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 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
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 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
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 * ENJOYMENT OR NON-INFRINGEMENT.
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 * Contributor(s):
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 * ***** END LICENSE BLOCK ***** */

#ifndef _RTSPCLNT_H_
#define _RTSPCLNT_H_

#include "rtspif.h"
#include "rtspbase.h"
#include "rtsptran.h"
#include "rtptran.h"
#include "rtspmdsc.h"
#include "sdptypes.h"	// SdpFileType
#include "hxpreftr.h"
#include "hxbufctl.h" // IHXTransportBufferLimit
#include "hxrtsp2.h"

class RTSPClientState;
class RTSPOptionsMessage;
class RTSPTeardownMessage;
class RTSPGetParamMessage;
class RTSPSetParamMessage;
class RTSPSetupMessage;
class RTSPAnnounceMessage;
class RTSPPlayMessage;
class RTSPRedirectMessage;
class RTSPParser;
class RTSPClientProtocol;
class CByteGrowingQueue;
class HXMutex;
class MIMEHeader;

struct IHXKeyValueList;
struct IHXValues;
struct IHXStreamDescription;
struct IHXPacket;
struct IHXConnectionlessControl;
struct IHXInterruptState;

#if defined(HELIX_CONFIG_NOSTATICS)
#include "globals/hxglobalptr.h"
#define RTSPClientSessionManagerType const RTSPClientSessionManager* const
#else
#define RTSPClientSessionManagerType RTSPClientSessionManager*
#endif /* defined(HELIX_CONFIG_NOSTATICS) */

typedef enum
{    
    ALTERNATE_SERVER,
    ALTERNATE_PROXY
} ReconnectType;

typedef enum
{
    ENTER_PREFETCH = 0,
    LEAVE_PREFETCH,
    ENTER_FASTSTART,
    LEAVE_FASTSTART,
    PAUSE_BUFFER,
    RESUME_BUFFER
} TRANSPORT_MSG;

typedef struct _ReconnectInfo
{
    CHXString	m_server;
    UINT32	m_ulPort;
} ReconnectInfo;

typedef struct _RTSPClientProtocolInfo
{
    RTSPClientProtocol*	m_pProt;
    CHXSimpleList	m_seqNoList;
    CHXMapLongToObj     m_interleaveMap;
} RTSPClientProtocolInfo;

typedef enum _RTSPIndex
{
    SETUP	    = 0,
    REDIRECT	    = 1,
    PLAY	    = 2,
    PAUSE	    = 3,
    SET_PARAM	    = 4,
    GET_PARAM	    = 5,
    OPTIONS	    = 6,
    DESCRIBE	    = 7, 
    TEARDOWN	    = 8,
    RECORD	    = 9,
    ANNOUNCE	    = 10
} RTSPIndex;
const UINT32 RTSP_TABLE_SIZE = 11;

struct RTSPTableEntry
{
    const char* pMethod;
    RTSPIndex	index;
};

class RTSPTransportInfo
{
public:
    RTSPTransportInfo           ();
    ~RTSPTransportInfo          ();
    BOOL containsStreamNumber	(UINT16 streamNumber);
    void addStreamNumber	(UINT16 streamNumber);
    RTSPTransport*              m_pTransport;
    RTCPBaseTransport*		m_pRTCPTransport;
    UINT16                      m_sPort;
    UINT16                      m_sResendPort;

private:
    CHXSimpleList               m_streamNumberList;
};

class RTSPTransportRequest
{
public:
    RTSPTransportRequest        (RTSPTransportTypeEnum tType, UINT16 sPort);
    ~RTSPTransportRequest       ();
    HX_RESULT addTransportInfo  (RTSPTransport* pTransport, 
				RTCPBaseTransport* pRTCPTransport,
				UINT16 streamNumber,
				UINT16 sPort);
    RTSPTransportInfo*		getTransportInfo(UINT16 streamNumber);
    void			ResetTransports();
    RTSPTransportInfo*		getFirstTransportInfo();
    RTSPTransportInfo*		getNextTransportInfo();

    RTSPTransportTypeEnum       m_lTransportType;
    UINT16                      m_sPort;
    UINT16			m_sResendPort;
    INT8			m_tcpInterleave;
    BOOL			m_bDelete;

private:
    CHXSimpleList               m_transportInfoList;
    LISTPOSITION		m_lListPos;
};

class RTSPClientSession	: public IHXTCPResponse, 
			  public IHXInterruptSafe
{
public:
    RTSPClientSession			    ();
    virtual ~RTSPClientSession			    ();

    HX_RESULT Done			    ();
    HX_RESULT Init			    (IUnknown* pContext,
    					RTSPClientProtocol* pProt,
    					const char* pHostName,
					UINT16 uPort, 
					UINT32 ulActualAddr,
					BOOL bUseProxy,
					BOOL bHTTPCloak,
					UINT16 uCloakPort);

    /*
     * IUnknown methods
     */

    STDMETHOD(QueryInterface)           (THIS_
					REFIID riid,
					void** ppvObj);

    STDMETHOD_(ULONG32,AddRef)          (THIS);

    STDMETHOD_(ULONG32,Release)         (THIS);

    /*
     *  IHXTCPResponse methods
     */

    STDMETHOD(ConnectDone)              (THIS_
					HX_RESULT status);

    STDMETHOD(ReadDone)                 (THIS_
					HX_RESULT status,
					IHXBuffer* pBuffer);

    STDMETHOD(WriteReady)               (THIS_
					HX_RESULT status);

    STDMETHOD(Closed)                   (THIS_
					HX_RESULT status);

    /*
     *	IHXInterruptSafe methods
     */
    STDMETHOD_(BOOL,IsInterruptSafe)	(THIS) {return TRUE;};

    HX_RESULT addProtocol		    (RTSPClientProtocol* pProt);
    HX_RESULT removeProtocol	    (RTSPClientProtocol* pProt);
    int getProtocolCount		    ();

    HX_RESULT setProtocolInterleave	    (RTSPClientProtocol* pProt, 
					    INT8 interleave);
    HX_RESULT setProtocolSeqNo	    (RTSPClientProtocol* pProt, 
					    UINT32 seqNo);
    HX_RESULT removeProtocolSeqNo	    (RTSPClientProtocol* pProt,
					    UINT32 seqNo);
    BOOL isEmpty			    ();
    IHXTCPSocket* getSocket	    ();
    HX_RESULT closeSocket		    ();
    HX_RESULT reopenSocket		    (RTSPClientProtocol* pProt);
    UINT32 getNextSeqNo		    (RTSPClientProtocol* pProt);
    BOOL HttpOnly			    ();

    BOOL				    m_bIgnoreSession;
    BOOL				    m_bUseProxy;	
    char*				    m_pForeignHost;
    UINT16				    m_uForeignPort;
    UINT32				    m_ulActualAddr;
    char*				    m_pActualHost;
    UINT16				    m_uActualPort;
    UINT16				    m_uCloakPort;
    BOOL				    m_bReopenSocket;
    IUnknown*				    m_pContext;

    BOOL				    m_bHTTPOnly;
    BOOL				    m_bChallengeDone;
    BOOL				    m_bChallengeMet;
    VOLATILE BOOL			    m_bIsValidChallengeT;
    void ReportError(HX_RESULT);


private:
    HX_RESULT handleInput		    (BYTE* pData, UINT32 dataLen);
    RTSPClientProtocol* 
	findProtocolFromInterleave	    (INT8 interleave);
    RTSPClientProtocol* 
	findProtocolFromSeqNo	    (UINT32 seqNo);
    RTSPClientProtocol*
	findProtocolFromSessionID	    (CHXString* pszSessionID);

    void getSessionID		    (RTSPMessage* pMsg, CHXString* pszSessionID);

    IHXNetworkServices*		    m_pNetworkServices;
    IHXTCPSocket*			    m_pSessionSocket;
    CHXSimpleList			    m_protList;
    INT32			            m_lRefCount;
    UINT32				    m_ulLastSeqNo;
    CByteGrowingQueue*		    m_pInQueue;
    RTSPParser*			    m_pParser;
    BOOL				    m_bSessionDone;
    BOOL				    m_bSetSessionCalled;

    // used in Connect/ConnectDone
    RTSPClientProtocol*		    m_pConnectingProt;
    HXMutex*			    m_pMutex;
};
	
class RTSPClientSessionManager : public IUnknown
{
public:
    					~RTSPClientSessionManager();
    static RTSPClientSessionManager*	instance();
    BOOL isValid			() { return SessionManGlobal() != NULL; }

    /*
     * IUnknown methods
     */

    STDMETHOD(QueryInterface)           (THIS_
					REFIID riid,
					void** ppvObj);

    STDMETHOD_(ULONG32,AddRef)          (THIS);

    STDMETHOD_(ULONG32,Release)         (THIS);

    /*
     * RTSPClientSessionManager methods
     */

    virtual HX_RESULT newSession	(IUnknown* pContext,
    					RTSPClientProtocol* pProt,
    					const char* pHostName,
					UINT16 uPort, 
					UINT32 ulActualAddr,
					BOOL bUseProxy,
					BOOL bHTTPOnly,
					UINT16 uCloakPort);

    HX_RESULT removeFromSession		(RTSPClientProtocol* pProt,
					RTSPClientSession* pSessionRemoved);

    RTSPClientSession* 
	findSession			(UINT32 ulActualAddr,
					UINT16 uActualPort,
					BOOL bUseProxy,
					const char* pForeignHost,
					UINT16 uForeignPort,
					IUnknown* pContext = NULL);
    CHXSimpleList* getSessionList	() { return &m_sessionList; }
    int	    getSessionCount		();
    BOOL    MatchPlayerContext		(IUnknown* pNewContext, IUnknown* pKnownContext);

protected:
					RTSPClientSessionManager();


    static RTSPClientSessionManagerType zm_pSessionManager;

    static RTSPClientSessionManager*& SessionManGlobal();

    HXMutex*				m_pMutex;
    CHXSimpleList			m_sessionList;

private:
    IHXResolver*		        m_pResolver;
    INT32				m_lRefCount;
};

class RTSPClientProtocol: public RTSPBaseProtocol, 
                          public IHXRTSPClientProtocol,
                          public IHXRTSPClientTransportResponse,
                          public IHXPendingStatus,