syncmlfw/common/http/inc/nsmlhttp.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 15:52:47 +0300
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permissions -rw-r--r--
Revision: 201011 Kit: 201015
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/*
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* Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  SyncML HTTP client
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*
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*/
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#ifndef _SMLTRANSPORT_H_
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#define _SMLTRANSPORT_H_
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#include <e32base.h>
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#include <e32cons.h>
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#include <reent.h>
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#include <http.h>
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#include <chttpformencoder.h>
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#include <http/mhttpauthenticationcallback.h>
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#include <e32test.h>
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#include <f32file.h>
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#include <uri8.h>
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#include <nifman.h>
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#include <nsmldebug.h>
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#include <nsmlconstants.h>
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#include <nsmldefines.h>
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#include "nsmltransport.h"
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#include "nsmldialiap.h"
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#include <rconnmon.h>
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// FORWARD DECLARATION
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class CNSmlXptShutdownTimer;
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class CNSmlHTTP;
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class CHttpEventHandler;
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//Class to observe the network status events 
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class CNsmlNetworkStatusEngine;
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// Reserved to maintain binary compability 
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class CNSmlFutureReservation;
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// Maximum size of buffer to hold content-type data
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//
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const TInt KMaxContentTypeSize = 256;
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// DM ONLY : Maximum duration in seconds for an incoming call  
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//during the session which will be used to decide if packet 
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//is to be resent or not . This is applicable only for DM 
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const TInt KDMMaxHttpAutoResumeDurationSec = 160;
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//============================================================
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// Class CNSmlHTTPErr
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//============================================================
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class TNSmlHTTPErrCode
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	{
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	public:	
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	enum 
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		{
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		/* 'Client Error' range of codes 4xx */
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		ENSmlHTTPErrCodeBase						= 1400,
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		ENSmlHTTPErr_BadRequest						= ENSmlHTTPErrCodeBase + HTTPStatus::EBadRequest,
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		ENSmlHTTPErr_Unauthorized					= ENSmlHTTPErrCodeBase + HTTPStatus::EUnauthorized,
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		ENSmlHTTPErr_PaymentRequired				= ENSmlHTTPErrCodeBase + HTTPStatus::EPaymentRequired,
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		ENSmlHTTPErr_Forbidden						= ENSmlHTTPErrCodeBase + HTTPStatus::EForbidden,
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		ENSmlHTTPErr_NotFound						= ENSmlHTTPErrCodeBase + HTTPStatus::ENotFound,
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		ENSmlHTTPErr_MethodNotAllowed				= ENSmlHTTPErrCodeBase + HTTPStatus::EMethodNotAllowed,
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		ENSmlHTTPErr_NotAcceptable					= ENSmlHTTPErrCodeBase + HTTPStatus::ENotAcceptable,
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		ENSmlHTTPErr_ProxyAuthenticationRequired	= ENSmlHTTPErrCodeBase + HTTPStatus::EProxyAuthenticationRequired,
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		ENSmlHTTPErr_RequestTimeout					= ENSmlHTTPErrCodeBase + HTTPStatus::ERequestTimeout,
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		ENSmlHTTPErr_Conflict						= ENSmlHTTPErrCodeBase + HTTPStatus::EConflict,
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		ENSmlHTTPErr_Gone							= ENSmlHTTPErrCodeBase + HTTPStatus::EGone,
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		ENSmlHTTPErr_LengthRequired					= ENSmlHTTPErrCodeBase + HTTPStatus::ELengthRequired,
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		ENSmlHTTPErr_PreconditionFailed				= ENSmlHTTPErrCodeBase + HTTPStatus::EPreconditionFailed,
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		ENSmlHTTPErr_RequestEntityTooLarge			= ENSmlHTTPErrCodeBase + HTTPStatus::ERequestEntityTooLarge,
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		ENSmlHTTPErr_RequestURITooLong				= ENSmlHTTPErrCodeBase + HTTPStatus::ERequestURITooLong,
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		ENSmlHTTPErr_UnsupportedMediaType			= ENSmlHTTPErrCodeBase + HTTPStatus::EUnsupportedMediaType,
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		ENSmlHTTPErr_RequestedRangeNotSatisfiable	= ENSmlHTTPErrCodeBase + HTTPStatus::ERequestedRangeNotSatisfiable,
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		ENSmlHTTPErr_ExpectationFailed				= ENSmlHTTPErrCodeBase + HTTPStatus::EExpectationFailed,
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		/* 'Server Error' range of codes 5xx */
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		ENSmlHTTPErr_InternalServerError			= ENSmlHTTPErrCodeBase + HTTPStatus::EInternalServerError,
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		ENSmlHTTPErr_NotImplemented					= ENSmlHTTPErrCodeBase + HTTPStatus::ENotImplemented,
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		ENSmlHTTPErr_BadGateway						= ENSmlHTTPErrCodeBase + HTTPStatus::EBadGateway,
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		ENSmlHTTPErr_ServiceUnavailable				= ENSmlHTTPErrCodeBase + HTTPStatus::EServiceUnavailable,
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		ENSmlHTTPErr_GatewayTimeout					= ENSmlHTTPErrCodeBase + HTTPStatus::EGatewayTimeout,
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		ENSmlHTTPErr_HTTPVersionNotSupported		= ENSmlHTTPErrCodeBase + HTTPStatus::EHTTPVersionNotSupported
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		};
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	};
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//============================================================
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// Class CNSmlXptShutdownTimer
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//============================================================
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class CNSmlXptShutdownTimer : public CActive
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	{
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	public:
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   107
		// construct/destruct
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   108
		CNSmlXptShutdownTimer( CNSmlHTTP* aEngine );
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   109
		void ConstructL();
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   110
		~CNSmlXptShutdownTimer();
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   111
		// start timer
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   112
		void Start();
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   113
		void StartAborted();
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   114
	private:
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   115
		// from CActive
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   116
		void DoCancel();
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   117
		void RunL();
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   118
		TTime iTimerSnapTime;
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   119
	private:
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   120
		RTimer iTimer;
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   121
		CNSmlHTTP* iEngine; 
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   122
	};
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   123
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   124
//============================================================
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   125
// Class CNSmlHTTP declaration
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   126
//============================================================
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class CNSmlHTTP : public CActive, public MHTTPDataSupplier, public MHTTPAuthenticationCallback
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   128
	{
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   129
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   130
	public:
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   131
		enum TEngineState {	ExptIdle, 
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   132
							ExptOpenCommunication, 
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   133
							ExptCloseCommunication,
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   134
							ExptReceiveData, 
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   135
							ExptSendData
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   136
							};
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   137
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   138
		enum TServerContentEncoding { ExptNone,
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   139
		                              ExptDeflate
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   140
	                            };
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   141
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   142
	public:
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   143
		// construct / destruct
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   144
		static CNSmlHTTP* NewL();        
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   145
		CNSmlHTTP();
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   146
		virtual void ConstructL();
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   147
		virtual ~CNSmlHTTP();
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   148
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   149
		// syncml xpt api
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   150
		virtual void OpenCommunicationL( CArrayFixFlat<TUint32>* aIAPidArray, TDesC8& aURI, TDesC8& aMimeType, TRequestStatus &aStatus, TDesC8& aHTTPusername, TDesC8& aHTTPpassword, TInt aHTTPauthused );
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   151
		virtual void CloseCommunicationL( TRequestStatus &aStatus );
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   152
		virtual void ReceiveDataL( TDes8& aStartPtr, TRequestStatus &aStatus );
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   153
		virtual void SendDataL( TDesC8& aStartPtr, TBool aFinalPacket, TRequestStatus &aStatus );
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   154
		virtual void ChangeTargetURIL( TDesC8& aURI );
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   155
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   156
	    void CompleteRequest();
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   157
		
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   158
	public:
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   159
		// methods inherited from MHTTPAuthenticationCallback
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   160
		virtual TBool GetCredentialsL (const TUriC8 &aURI,RString aRealm,RStringF aAuthenticationType,RString &aUsername,RString &aPassword); 
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   161
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   162
	public:
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   163
		TRequestStatus* iAgentStatus;
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   164
		//iPreemptRequest: Specifies how many requests were completed
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   165
		//before the httpevent handler sends the status back.
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   166
		//This can occur due to long wait time, http layer in some scenario sends
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   167
		//status to client after 5-9 minutes
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   168
		TInt iPreemptRequest;
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   169
        TBool iTimeOut;
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   170
		TServerContentEncoding iServerContentEncoding;
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   171
		TServerContentEncoding iServerAcceptEncoding;
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   172
		TInt iMaxMsgSize;
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   173
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   174
	private:
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   175
		// methods inherited from MHTTPDataSupplier
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   176
		TBool GetNextDataPart(TPtrC8& aDataPart);
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   177
		void ReleaseData();
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   178
		TInt OverallDataSize();
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   179
		TInt Reset();
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   180
		// from CActive
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   181
		void DoCancel();
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   182
		void RunL();
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   183
		// set http error status
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   184
		static TInt SetErrorStatus( TInt aError );
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   185
		void ProcessRequestL();
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   186
		void InvokeHttpMethodL( const TDesC8& aUri, RStringF aMethod );
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   187
		void SetHeaderL( RHTTPHeaders aHeaders, TInt aHdrField, const TDesC8& aHdrValue );
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   188
		void GetResponseBodyL( TDes8& aStartPtr );
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   189
		void SetHttpConnectionInfoL( TBool aUseOwnConnection );
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   190
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   191
		void SaveCertificateL( RHTTPTransaction &aTransaction );
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   192
		void DeleteCertificate();
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diff changeset
   193
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   194
	
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   195
		void CompressL(TDesC8& aStartPtr);
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   196
		void DecompressL(TDes8& aStartPtr);
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   197
		TInt ReadRepositoryL(TInt aKey, TInt& aValue);
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   198
	private:
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   199
		HBufC8* iData;
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   200
		HBufC8* iReqBodySubmitBuffer;
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   201
		TPtr8 iReqBodySubmitBufferPtr;
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diff changeset
   202
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   203
		TInt iDocumentLength;
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   204
		TInt iIAPid;
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   205
        CArrayFixFlat<TUint32>* iIAPidArray;
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   206
		HBufC8* iURI;
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   207
		HBufC8* iMimeType;
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   208
		CNSmlDialUpAgent* iDialUpAgent;
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parents:
diff changeset
   209
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   210
		HBufC8* iHTTPusername;
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   211
		HBufC8* iHTTPpassword;
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   212
		TInt iAuthUsed;		
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   213
		TInt iAuthRetryCount;
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   214
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   215
		// timer for closing transport activity
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   216
		CNSmlXptShutdownTimer* iShutdown;
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   217
		CNsmlNetworkStatusEngine* iNetworkStatusEngine;
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   218
		TBool iLastPart;
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   219
		TEngineState iEngineState;
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		RHTTPSession iSess;
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		RHTTPTransaction iTrans;
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		CHttpEventHandler* iTransObs;
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		// Reserved to maintain binary compability
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		CNSmlFutureReservation* iReserved;
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		//Stores the current ongoing session
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		TInt iSession;
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	private:
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		friend class CNSmlXptShutdownTimer;
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		friend class CHttpEventHandler;
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		friend class CNsmlNetworkStatusEngine;
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	};
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	IMPORT_C CNSmlHTTP* CreateCNSmlHTTPL();
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	typedef CNSmlHTTP* (*TNSmlCreateHTTPFunc) ();   
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//============================================================
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// Class CNsmlNetworkStatusEngine
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// This is used for listening for gprs suspend/resume events
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//============================================================
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class CNsmlNetworkStatusEngine :public CBase, private MConnectionMonitorObserver
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{
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		public:
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        CNsmlNetworkStatusEngine( CNSmlHTTP* aAgent );
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		~CNsmlNetworkStatusEngine();
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		void ConstructL();
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    public: // New methods
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      	/**
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        * Starts notifications.
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        */
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		void NotifyL() ;
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        /**
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        * Stops notifications.
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        */
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       	void StopNotify() ;
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       	/**
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        * Stops DM session.
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        */
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        void StopDMSession();
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	private : // From MConnectionMonitorObserver
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		void EventL( const CConnMonEventBase& aConnMonEvent ) ;
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	private: // Data 
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		RConnectionMonitor            iConnectionMonitor;
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		TRequestStatus                iStatus;
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		TInt                          iNetwStatus;
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		CNSmlHTTP* 	iAgent;
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		TBool iTimerOn;
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		CPeriodic*          iTimedExecuteStopSession;
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		TInt iDMSmlSessionTimeout;
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		TTime iSuspendedTime;
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		TTime iSuspendDuration;
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};
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#endif