1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  TCP protocol implementation for IP proxy

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CPROTOCOLTCP_H

    21 #define CPROTOCOLTCP_H

    22 

    23 //  INCLUDES

    24 #include "MBPProtocol.h"

    25 #include "MBPExpression.h"

    26 #include "MExpressionObserverTCP.h"

    27 

    28 #include <e32base.h>

    29 

    30 

    31 // FORWARD DECLARATIONS

    32 class MProtocolObserverTCP;

    33 class MSocketWriter;

    34 

    35 // CLASS DECLARATION

    36 

    37 /**

    38 * HTTPProxy protocol implementation. Writes and interpretes data in

    39 * protocol frame.

    40 */

    41 NONSHARABLE_CLASS( CProtocolTCP ) : public CBase, public MBPProtocol,

    42                                     public MExpressionObserverTCP

    43     {

    44 

    45     public:  // Constructors and destructor

    46 

    47         /**

    48         * Factory function.

    49         * @param aObserver Pointer to observer.

    50         * @return New CProtocol instance.

    51         */

    52         static CProtocolTCP* NewL( MProtocolObserverTCP* aObserver );

    53 

    54         /**

    55         * Factory function.

    56         * @param aObserver Pointer to observer.

    57         * @return New CProtocol instance.

    58         */

    59         static CProtocolTCP* NewLC( MProtocolObserverTCP* aObserver );

    60 

    61         /**

    62         * Destructor.

    63         */

    64         ~CProtocolTCP();

    65 

    66     public: // From MExpressionObserverTCP

    67 

    68         void FrameStarted();

    69         void FrameParsedL( TUint aPort, const TDesC8& aData );

    70         void ProtocolErrorL( TInt aErrorCode, const TDesC8& aReceivedData );

    71         void OpenLocalTCPConnectionL( TUint aPort );

    72         void OpenListeningTCPConnectionL( TUint aPort );

    73         void CloseTCPConnectionL( TUint aPort );

    74         void CloseAllTCPConnections();

    75 

    76     public: // From MBPProtocol

    77 

    78         void WriteFrameL( MSocketWriter& aSocketWriter,

    79             TUint aPeerPort, TUint aOriginalPort, const TDesC8& aData ) const;

    80 

    81         TBool HandleReceivedDataL( TDes8& aData, TInt& aStartPos, TInt& aLength );

    82 

    83     public: // New functions

    84 

    85         /**

    86         * Sends command via HTI to close the TCP connection

    87         * @param aPort Remote port to close

    88         */

    89         void SendCloseTCPConnection( MSocketWriter& aSocketWriter,

    90                                           TUint aPort );

    91 

    92     protected:

    93 

    94         /**

    95         * Default constructor.

    96         * @param aObserver Pointer to observer.

    97         */

    98         CProtocolTCP( MProtocolObserverTCP* aObserver );

    99 

   100         /**

   101         * 2nd phase constructor.

   102         */

   103         void ConstructL();

   104 

   105 

   106     private:    // Owned data

   107 

   108         CArrayPtr<MBPExpression>* iExpressionArray;

   109 

   110     private:    // Not owned data

   111         MProtocolObserverTCP* iObserver;

   112 

   113     };

   114 

   115 #endif      // CPROTOCOLTCP_H

   116 

   117 // End of File