realtimenetprots/sipfw/SIP/Registration/src/csip423responsereceived.cpp
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     1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // Name          : csip423responsereceived.cpp
       
    15 // Part of       : SIP Registration
       
    16 // Version       : SIP/4.0 
       
    17 //
       
    18 
       
    19 
       
    20 
       
    21 #include "csip423responsereceived.h"
       
    22 #include "siprequest.h"
       
    23 #include "sipresponse.h"
       
    24 #include "sipcseqheader.h"
       
    25 #include "SipAssert.h"
       
    26 #include "MRegistrationOwner.h"
       
    27 #include "sipcontactheader.h"
       
    28 #include "CSIPRegistrar.h"
       
    29 #include "CSIPResponseUtility.h"
       
    30 #include "siperr.h"
       
    31 
       
    32 
       
    33 // -----------------------------------------------------------------------------
       
    34 // CSIP423ResponseReceived::NewL
       
    35 // -----------------------------------------------------------------------------
       
    36 //
       
    37 CSIP423ResponseReceived* CSIP423ResponseReceived::NewL(
       
    38 	MRegistrationContext& aRegistration)
       
    39 	{
       
    40 	CSIP423ResponseReceived* self = 
       
    41 		CSIP423ResponseReceived::NewLC(aRegistration);
       
    42 	CleanupStack::Pop(self);
       
    43 	return self;
       
    44 	}
       
    45 
       
    46 // -----------------------------------------------------------------------------
       
    47 // CSIP423ResponseReceived::NewLC
       
    48 // -----------------------------------------------------------------------------
       
    49 //
       
    50 CSIP423ResponseReceived* CSIP423ResponseReceived::NewLC(
       
    51 	MRegistrationContext& aRegistration)
       
    52 	{
       
    53 	CSIP423ResponseReceived* self = 
       
    54 		new (ELeave) CSIP423ResponseReceived(aRegistration);
       
    55 	CleanupStack::PushL(self);
       
    56 	return self;
       
    57 	}
       
    58 
       
    59 // -----------------------------------------------------------------------------
       
    60 // CSIP423ResponseReceived::SetNeighbourStates
       
    61 // -----------------------------------------------------------------------------
       
    62 //
       
    63 void CSIP423ResponseReceived::SetNeighbourStates(
       
    64 	CSIPRegistrationState* aRegistered,
       
    65     CSIPRegistrationState* aUnregistered)
       
    66 	{
       
    67 	__SIP_ASSERT_RETURN(aRegistered, KErrArgument);
       
    68     __SIP_ASSERT_RETURN(aUnregistered, KErrArgument);
       
    69 
       
    70 	iRegistered = aRegistered;
       
    71     iUnregistered = aUnregistered;
       
    72 	}
       
    73 
       
    74 // -----------------------------------------------------------------------------
       
    75 // CSIP423ResponseReceived::~CSIP423ResponseReceived
       
    76 // -----------------------------------------------------------------------------
       
    77 //
       
    78 CSIP423ResponseReceived::~CSIP423ResponseReceived()
       
    79 	{
       
    80 	}
       
    81 
       
    82 // -----------------------------------------------------------------------------
       
    83 // CSIP423ResponseReceived::RegisterL
       
    84 // -----------------------------------------------------------------------------
       
    85 //
       
    86 void CSIP423ResponseReceived::RegisterL(TTransactionId&  aTransactionId, 
       
    87 	  	                                CSIPRequest*     aRequest,
       
    88 		                                CSIPRouteHeader* aOutboundProxy)
       
    89 	{
       
    90 	__SIP_ASSERT_LEAVE(aRequest, KErrArgument);
       
    91 
       
    92 	CSIPCSeqHeader* cseq = aRequest->CSeq();
       
    93 	if (iRegistration.Registrar())
       
    94 		{	
       
    95 		// if there is Registrar, the CallId and CSeq must be filled-in
       
    96 		// from CSIPRegistering state. the CSeq need to be increased for 
       
    97 		// sending REGISTER request again in this state. so panic if there is 
       
    98 		// no CSeq header in debug mode,leave in release mode
       
    99 		__SIP_ASSERT_LEAVE(cseq != 0, KErrGeneral);
       
   100 		// increase the cseq for registrar
       
   101 		iRegistration.Registrar()->IncreaseCSeqNumber();
       
   102 		cseq->SetSeq(iRegistration.Registrar()->CSeqNumber());
       
   103 		}
       
   104 	else
       
   105 		{	
       
   106 		// to check if the CSeq has been filled by lower layer,
       
   107 		// if so, increase the CSeq by one before sending the request.
       
   108 		if (cseq)
       
   109 			{
       
   110 			cseq->SetSeq(cseq->Seq()+1);
       
   111 			}
       
   112 		}
       
   113 
       
   114 	iRegistration.RegisterL(aTransactionId, aRequest, aOutboundProxy);
       
   115 	}
       
   116 
       
   117 // -----------------------------------------------------------------------------
       
   118 // CSIP423ResponseReceived::ReceiveL
       
   119 // -----------------------------------------------------------------------------
       
   120 //
       
   121 void CSIP423ResponseReceived::ReceiveL(TTransactionId aTransactionId,
       
   122 		                               CSIPResponse*  aResponse)
       
   123 	{
       
   124 	__SIP_ASSERT_LEAVE(aResponse, KErrArgument);
       
   125 	// the expires parameter value must not be 0, other wise panic in debug
       
   126 	// mode, leaves in release mode.
       
   127 	__SIP_ASSERT_LEAVE(iRegistration.Contact().ExpiresParameter() > 0, 
       
   128 		KErrGeneral);
       
   129 
       
   130 	if (aResponse->Type() == CSIPResponse::E2XX)
       
   131 		{
       
   132 		// ConnectionMgr may have changed the the host part of the Contact
       
   133 		iRegistration.UpdateContactFromRequestL();
       
   134         TInt err = 
       
   135             CSIPResponseUtility::Check2XXResponse(iRegistration,*aResponse);		
       
   136 		if (err)
       
   137 			{
       
   138 			iRegistration.ReceivedErrorResponseL();
       
   139 			PassErrorL(err,aTransactionId);
       
   140 			delete aResponse;
       
   141 			iRegistration.SelfDetach(ETrue);
       
   142 			iRegistration.ChangeState(iUnregistered); 
       
   143 			}
       
   144 		else
       
   145 			{
       
   146 			iRegistration.Received2XXResponseL(*aResponse,aTransactionId);
       
   147 			// pass response to owner, registration id should be passed
       
   148 			// since 2xx ok response received.
       
   149 			PassResponseToOwnerL(aResponse, aTransactionId, 
       
   150 				iRegistration.RegistrationId());
       
   151 				
       
   152 			// if EFalse,detach from lowerlayer only for nonrefresh binding.
       
   153 			// Use overloaded version of SelfDetatch function
       
   154 			// to detatch retry transaction.
       
   155 			iRegistration.SelfDetach(EFalse, ETrue);
       
   156 			
       
   157 			// if the binding is non refresh binding, the request is deleted.
       
   158 			iRegistration.ClearRequest();
       
   159 			iRegistration.ChangeState(iRegistered); 
       
   160 			}
       
   161 		}
       
   162 	else if (aResponse->IsErrorResponse())
       
   163 		{
       
   164 		// ReceivedErrorResponseL, remove binding 
       
   165 		iRegistration.ReceivedErrorResponseL();
       
   166 		// pass response to owner
       
   167 		PassResponseL(aResponse, aTransactionId);
       
   168 		iRegistration.SelfDetach(ETrue);
       
   169 		iRegistration.ChangeState(iUnregistered);
       
   170 		}
       
   171 	else // response type == 1XX
       
   172 		{
       
   173 		// pass provisional response to owner
       
   174 		PassResponseL(aResponse, aTransactionId);
       
   175 		}
       
   176 	}
       
   177 
       
   178 // -----------------------------------------------------------------------------
       
   179 // CSIP423ResponseReceived::TransactionEnded
       
   180 // -----------------------------------------------------------------------------
       
   181 //
       
   182 TInt CSIP423ResponseReceived::TransactionEnded(TTransactionId aTransactionId, 
       
   183 		                                       TInt           aReason)
       
   184 	{
       
   185 	if (aReason != KErrNone)
       
   186 		{
       
   187 		iRegistration.ChangeState(iUnregistered);
       
   188 		}
       
   189 	// pass error to owner. 
       
   190 	if (iUpdate)
       
   191 		{
       
   192 		return (PassErrorToOwner(aReason, aTransactionId,
       
   193 			iRegistration.RegistrationId()));	
       
   194 		}
       
   195 	else
       
   196 		{
       
   197 		return (PassErrorToOwner(aReason, aTransactionId));
       
   198 		}
       
   199 	}
       
   200 
       
   201 // -----------------------------------------------------------------------------
       
   202 // CSIP423ResponseReceived::Retrying
       
   203 // -----------------------------------------------------------------------------
       
   204 //
       
   205 
       
   206 TBool CSIP423ResponseReceived::Retrying() const
       
   207 
       
   208 	{
       
   209 	return ETrue;	
       
   210 	}
       
   211 
       
   212 // -----------------------------------------------------------------------------
       
   213 // CSIP423ResponseReceived::SetUpdate
       
   214 // -----------------------------------------------------------------------------
       
   215 //
       
   216 void CSIP423ResponseReceived::SetUpdate(TBool aUpdate)
       
   217 	{
       
   218 	iUpdate = aUpdate;
       
   219 	}
       
   220 
       
   221 // -----------------------------------------------------------------------------
       
   222 // CSIP423ResponseReceived::CSIP423ResponseReceived
       
   223 // -----------------------------------------------------------------------------
       
   224 //
       
   225 CSIP423ResponseReceived::CSIP423ResponseReceived(
       
   226 	MRegistrationContext& aRegistration) 
       
   227 	: CSIPRegistrationState (aRegistration),
       
   228 	iUpdate                 (EFalse)
       
   229 	{
       
   230 	}
       
   231 
       
   232 // -----------------------------------------------------------------------------
       
   233 // CSIP423ResponseReceived::PassResponseL
       
   234 // -----------------------------------------------------------------------------
       
   235 //
       
   236 void CSIP423ResponseReceived::PassResponseL(CSIPResponse*   aResponse,
       
   237 											TTransactionId  aTransactionId)
       
   238 	{
       
   239 	if (iUpdate)
       
   240 		{
       
   241 		PassResponseToOwnerL(aResponse, aTransactionId, 
       
   242 			iRegistration.RegistrationId());
       
   243 		}
       
   244 	else
       
   245 		{
       
   246 		PassResponseToOwnerL(aResponse, aTransactionId);
       
   247 		}
       
   248 	}
       
   249 
       
   250 // -----------------------------------------------------------------------------
       
   251 // CSIP423ResponseReceived::PassErrorL
       
   252 // -----------------------------------------------------------------------------
       
   253 //
       
   254 void CSIP423ResponseReceived::PassErrorL(TInt aError, 
       
   255 										 TTransactionId  aTransactionId)
       
   256 	{
       
   257 	if (iUpdate)
       
   258 		{
       
   259 		User::LeaveIfError(PassErrorToOwner(aError, aTransactionId,
       
   260 			iRegistration.RegistrationId()));	
       
   261 		}
       
   262 	else
       
   263 		{
       
   264 		User::LeaveIfError(PassErrorToOwner(aError, aTransactionId));
       
   265 		}
       
   266 	}