networkprotocolmodules/suplprotocolmodule/SuplConnectionManager/src/socketreader.cpp
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     1 #include <e32debug.h>
       
     2 // Copyright (c) 2008-2009 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:
       
    15 //
       
    16 
       
    17 /**
       
    18  @file
       
    19  @internalComponent
       
    20  @deprecated
       
    21 */
       
    22 #include "socketreader.h"
       
    23 
       
    24 #include "supldevloggermacros.h"
       
    25 
       
    26 #include "suplasn1decoder.h"
       
    27 #include "suplmessagebase.h"
       
    28 
       
    29 
       
    30 CSocketReader* CSocketReader::NewL(RSocket& aSocket, MSuplSocketObserver& aObserver, TUint aCallbackId)
       
    31 	{
       
    32 	SUPLLOG(ELogP1, "CSocketReader::NewL() Begin\n");
       
    33 	CSocketReader* self = new (ELeave) CSocketReader(aSocket, aObserver, aCallbackId);
       
    34 	CleanupStack::PushL(self);
       
    35 	self->ConstructL();
       
    36 	CleanupStack::Pop(self);
       
    37 	
       
    38 	SUPLLOG(ELogP1, "CSocketReader::NewL() End\n");
       
    39 	return self;
       
    40 	}
       
    41 
       
    42 CSocketReader::~CSocketReader()
       
    43 	{
       
    44 	SUPLLOG(ELogP1, "CSocketReader::~CSocketReader() Begin\n");
       
    45 	Cancel();
       
    46 	//iSocket.Close(); => Passed in as reference
       
    47 	iBuffer.Close();
       
    48 	delete iDecoder;
       
    49 	SUPLLOG(ELogP1, "CSocketReader::~CSocketReader() End\n");
       
    50 	}
       
    51 
       
    52 CSocketReader::CSocketReader(RSocket& aSocket, MSuplSocketObserver& aObserver, TUint aCallbackId) :
       
    53 	CActive(EPriorityStandard), iSocket(aSocket), iObserver(aObserver), iIsFirstFragment(ETrue), 
       
    54 	iCurrentMessageSize(0), iReadSoFar(0), iPtr(NULL, 0), iCallbackId(aCallbackId)
       
    55 	{
       
    56 	SUPLLOG(ELogP1, "CSocketReader::CSocketReader() Begin\n");
       
    57 	CActiveScheduler::Add(this);
       
    58 	SUPLLOG(ELogP1, "CSocketReader::CSocketReader() End\n");
       
    59 	}
       
    60 
       
    61 void CSocketReader::ConstructL()
       
    62 	{
       
    63 	SUPLLOG(ELogP1, "CSocketReader::ConstructL() Begin\n");
       
    64 	iBuffer.CreateL(KSuplMaxMessageLength);
       
    65 	iBuffer.SetLength(iBuffer.MaxLength());
       
    66 	iDecoder = CSuplAsn1Decoder::NewL();
       
    67 	
       
    68 	IssueRead();
       
    69 	SUPLLOG(ELogP1, "CSocketReader::ConstructL() End\n");
       
    70 	}
       
    71 
       
    72 void CSocketReader::RunL()
       
    73 	{
       
    74 	SUPLLOG(ELogP1, "CSocketReader::RunL() Begin\n");
       
    75 	TBool cleanup = EFalse;
       
    76 	if (iStatus == KErrNone)
       
    77 		{
       
    78 		iReadSoFar += iBufferRead();
       
    79 		if (iIsFirstFragment && (iReadSoFar > 1)) // If first fragment we need to get the size of the data
       
    80 			{
       
    81 			SuplMessageLength();
       
    82 			iIsFirstFragment = EFalse;
       
    83 			} // if
       
    84 		
       
    85 		if (iReadSoFar == iCurrentMessageSize)
       
    86 			{
       
    87 			// Fire observation
       
    88 			iBuffer.SetLength(iCurrentMessageSize);
       
    89 			FireObservation();
       
    90 			
       
    91 			iIsFirstFragment = ETrue;
       
    92 			iCurrentMessageSize = 0;
       
    93 			iReadSoFar = 0;
       
    94 			iBuffer.SetLength(iBuffer.MaxLength());
       
    95 			} // if
       
    96 		else if (iReadSoFar > iCurrentMessageSize)
       
    97 			{
       
    98 			SUPLLOG(ELogP1, "CSocketReader::RunL(), ReadSoFar > CurrentMessageSize\n");
       
    99 			SUPLLOG(ELogP1, "CSocketReader::FireObservation() Firing ConnectionError\n");
       
   100 
       
   101 			iObserver.ConnectionError(MSuplSocketObserver::ETooMuchDataRead, iCallbackId, 0, cleanup);
       
   102 			if (cleanup)
       
   103 				{
       
   104 				delete this;
       
   105 				}
       
   106 			} // else if
       
   107 		else
       
   108 			{
       
   109 			// Do nothing.
       
   110 			}
       
   111 		
       
   112 		// Kick off the read again
       
   113 		if (!cleanup)	//cleanup status from iObserver.ConnectionError
       
   114 			{
       
   115 			IssueRead();
       
   116 			}
       
   117 		} // if
       
   118 	else
       
   119 		{
       
   120 		SUPLLOG(ELogP1, "CSecureSocketReader::FireObservation() Firing ConnectionError\n");
       
   121 
       
   122 		iObserver.ConnectionError(MSuplSocketObserver::EFailedToRead, iCallbackId, 0, cleanup);
       
   123 		if (cleanup)
       
   124 			{
       
   125 			delete this;
       
   126 			}
       
   127 		}
       
   128 	SUPLLOG(ELogP1, "CSocketReader::RunL() End\n");
       
   129 	}
       
   130 
       
   131 void CSocketReader::DoCancel()
       
   132 	{
       
   133 	SUPLLOG(ELogP1, "CSocketReader::DoCancel() Begin\n");
       
   134 	iSocket.CancelRecv();
       
   135 	SUPLLOG(ELogP1, "CSocketReader::DoCancel() End\n");
       
   136 	}
       
   137 
       
   138 void CSocketReader::RunError()
       
   139 	{
       
   140 	SUPLLOG(ELogP1, "CSocketReader::RunError() Begin\n");
       
   141 	ASSERT(EFalse);
       
   142 	SUPLLOG(ELogP1, "CSocketReader::RunError() End\n");
       
   143 	}
       
   144 
       
   145 void CSocketReader::IssueRead()
       
   146 	{
       
   147 	SUPLLOG(ELogP1, "CSocketReader::IssueRead() Begin\n");
       
   148 	if (!IsActive())
       
   149 		{
       
   150 		TPtr8 ptr = iBuffer.MidTPtr(iReadSoFar);
       
   151 		iPtr.Set(const_cast<TUint8*>(ptr.Ptr()), 0, ptr.MaxLength());
       
   152 		iSocket.RecvOneOrMore(iPtr, 0, iStatus, iBufferRead);
       
   153 		SetActive();
       
   154 		}
       
   155 	SUPLLOG(ELogP1, "CSocketReader::IssueRead() End\n");
       
   156 	}
       
   157 
       
   158 void CSocketReader::SuplMessageLength()
       
   159 {
       
   160 	SUPLLOG(ELogP1, "CSocketReader::SuplMessageLength() Begin\n");
       
   161 	// Get the first two bytes of iBuffer as a TInt and put it in iSuplMessageLength
       
   162 	iCurrentMessageSize = STATIC_CAST(TUint8,iBuffer[0]);
       
   163 	iCurrentMessageSize = iCurrentMessageSize << 8;
       
   164 	iCurrentMessageSize |= STATIC_CAST(TUint8,iBuffer[1]);
       
   165 	SUPLLOG(ELogP1, "CSocketReader::SuplMessageLength() End\n");
       
   166 }
       
   167 
       
   168 void CSocketReader::FireObservation()
       
   169 	{
       
   170 	SUPLLOG(ELogP1, "CSocketReader::FireObservation() Begin\n");
       
   171 	CSuplMessageBase* message = NULL; 
       
   172 	TInt err;
       
   173 	TInt traperr = err = KErrNone;
       
   174 	TPtrC8 ptr(iBuffer);
       
   175 	TRAP(traperr, message = iDecoder->DecodeL(&ptr, err));
       
   176 	if ((err != KErrNone) || (traperr != KErrNone))
       
   177 		{
       
   178 		// Fire error message => Session Id is not known
       
   179 		TBool cleanup = EFalse;
       
   180 		iObserver.ConnectionError(MSuplSocketObserver::EFailedToDecode, iCallbackId, 0, cleanup);
       
   181 		if (cleanup)
       
   182 			{
       
   183 			delete this;
       
   184 			}
       
   185 		}
       
   186 	else
       
   187 		{
       
   188 		iObserver.MessageReceived(message); // Passes ownership
       
   189 		}
       
   190 	SUPLLOG(ELogP1, "CSocketReader::FireObservation() End\n");
       
   191 	}
       
   192 
       
   193 /*****************************************************************************
       
   194  * CSecureSocketReader 
       
   195  */
       
   196 CSecureSocketReader* CSecureSocketReader::NewL(CSecureSocket& aSocket, MSuplSocketObserver& aObserver, TUint aCallbackId)
       
   197 	{
       
   198 	SUPLLOG(ELogP1, "CSecureSocketReader::NewL() Begin\n");
       
   199 	CSecureSocketReader* self = new (ELeave) CSecureSocketReader(aSocket, aObserver, aCallbackId);
       
   200 	CleanupStack::PushL(self);
       
   201 	self->ConstructL();
       
   202 	CleanupStack::Pop(self);
       
   203 
       
   204 	SUPLLOG(ELogP1, "CSecureSocketReader::NewL() End\n");
       
   205 
       
   206 	return self;
       
   207 	}
       
   208 
       
   209 CSecureSocketReader::~CSecureSocketReader()
       
   210 	{
       
   211 	SUPLLOG(ELogP1, "CSecureSocketReader::~CSecureSocketReader() Begin\n");
       
   212 	Cancel();
       
   213 	//iSocket.Close(); => Passed in as reference
       
   214 	iBuffer.Close();
       
   215 	delete iDecoder;
       
   216 	SUPLLOG(ELogP1, "CSecureSocketReader::~CSecureSocketReader() End\n");
       
   217 	}
       
   218 
       
   219 CSecureSocketReader::CSecureSocketReader(CSecureSocket& aSocket, MSuplSocketObserver& aObserver, TUint aCallbackId) :
       
   220 	CActive(EPriorityStandard), iSocket(aSocket), iObserver(aObserver), iIsFirstFragment(ETrue), 
       
   221 	iCurrentMessageSize(0), iReadSoFar(0),  iPtr(NULL, 0), iCallbackId(aCallbackId)
       
   222 	{
       
   223 	SUPLLOG(ELogP1, "CSecureSocketReader::CSecureSocketReader() Begin\n");
       
   224 	CActiveScheduler::Add(this);
       
   225 	SUPLLOG(ELogP1, "CSecureSocketReader::CSecureSocketReader() End\n");
       
   226 	}
       
   227 
       
   228 void CSecureSocketReader::ConstructL()
       
   229 	{
       
   230 	SUPLLOG(ELogP1, "CSecureSocketReader::ConstructL() Begin\n");
       
   231 	iBuffer.CreateL(KSuplMaxMessageLength);
       
   232 	iBuffer.SetLength(KSuplMaxMessageLength);
       
   233 	iDecoder = CSuplAsn1Decoder::NewL();
       
   234 	
       
   235 	IssueRead();
       
   236 	SUPLLOG(ELogP1, "CSecureSocketReader::ConstructL() End\n");
       
   237 	}
       
   238 
       
   239 void CSecureSocketReader::RunL()
       
   240 	{
       
   241 	SUPLLOG2(ELogP1, "CSecureSocketReader::RunL() Begin, iStatus: %d\n", iStatus.Int());
       
   242 	TBool cleanup = EFalse;
       
   243 	if (iStatus == KErrNone)
       
   244 		{
       
   245 		iReadSoFar += iBufferRead();
       
   246 		if (iIsFirstFragment && (iReadSoFar > 1)) // If first fragment we need to get the size of the data
       
   247 			{
       
   248 			SuplMessageLength();
       
   249 			iIsFirstFragment = EFalse;
       
   250 			} // if
       
   251 		
       
   252 		if (iReadSoFar == iCurrentMessageSize)
       
   253 			{
       
   254 			// Fire observation
       
   255 			iBuffer.SetLength(iCurrentMessageSize);
       
   256 			FireObservation();
       
   257 			
       
   258 			iIsFirstFragment = ETrue;
       
   259 			iCurrentMessageSize = 0;
       
   260 			iReadSoFar = 0;
       
   261 			iBuffer.SetLength(iBuffer.MaxLength());
       
   262 			} // if
       
   263 		else if (iReadSoFar > iCurrentMessageSize)
       
   264 			{
       
   265 			SUPLLOG(ELogP1, "CSecureSocketReader::RunL(), ReadSoFar > CurrentMessageSize\n");
       
   266 			SUPLLOG(ELogP1, "CSecureSocketReader::FireObservation() Firing ConnectionError\n");
       
   267 
       
   268 			iObserver.ConnectionError(MSuplSocketObserver::ETooMuchDataRead, iCallbackId, 0, cleanup);
       
   269 			if (cleanup)
       
   270 				{
       
   271 				delete this;
       
   272 				}
       
   273 			} // else if
       
   274 		else
       
   275 			{
       
   276 			// Nothing to do just fall through, as we always want to re-issue the read.
       
   277 			}
       
   278 		
       
   279 		// Kick off the read again
       
   280 		if (!cleanup)	//cleanup status from iObserver.ConnectionError
       
   281 			{
       
   282 			IssueRead();
       
   283 			}
       
   284 		} // if
       
   285 	else
       
   286 		{
       
   287 		SUPLLOG(ELogP1, "CSecureSocketReader::FireObservation() Firing ConnectionError\n");
       
   288 
       
   289 		iObserver.ConnectionError(MSuplSocketObserver::EFailedToRead, iCallbackId, 0, cleanup);
       
   290 		if (cleanup)
       
   291 			{
       
   292 			delete this;
       
   293 			}
       
   294 		}
       
   295 	SUPLLOG(ELogP1, "CSecureSocketReader::RunL() End\n");
       
   296 	}
       
   297 
       
   298 void CSecureSocketReader::DoCancel()
       
   299 	{
       
   300 	SUPLLOG(ELogP1, "CSecureSocketReader::DoCancel() Begin\n");
       
   301 	iSocket.CancelAll();
       
   302 	SUPLLOG(ELogP1, "CSecureSocketReader::DoCancel() End\n");
       
   303 	}
       
   304 
       
   305 void CSecureSocketReader::RunError()
       
   306 	{
       
   307 	SUPLLOG(ELogP1, "CSecureSocketReader::RunError() Begin\n");
       
   308 	SUPLLOG(ELogP1, "CSecureSocketReader::RunError() End\n");
       
   309 	}
       
   310 
       
   311 void CSecureSocketReader::IssueRead()
       
   312 	{
       
   313 	SUPLLOG(ELogP1, "CSecureSocketReader::IssueRead() Begin\n");
       
   314 	if (!IsActive())
       
   315 		{
       
   316 		TPtr8 ptr = iBuffer.MidTPtr(iReadSoFar);
       
   317 		iPtr.Set(const_cast<TUint8*>(ptr.Ptr()), 0, ptr.MaxLength());
       
   318 		iSocket.RecvOneOrMore(iPtr, iStatus, iBufferRead);
       
   319 		SetActive();
       
   320 		}
       
   321 	SUPLLOG(ELogP1, "CSecureSocketReader::IssueRead() End\n");
       
   322 	}
       
   323 
       
   324 void CSecureSocketReader::SuplMessageLength()
       
   325 {
       
   326 	SUPLLOG(ELogP1, "CSecureSocketReader::SuplMessageLength() Begin\n");
       
   327 	// Get the first two bytes of iBuffer as a TInt and put it in iSuplMessageLength
       
   328 	iCurrentMessageSize = STATIC_CAST(TUint8,iBuffer[0]);
       
   329 	iCurrentMessageSize = iCurrentMessageSize << 8;
       
   330 	iCurrentMessageSize |= STATIC_CAST(TUint8,iBuffer[1]);
       
   331 	SUPLLOG(ELogP1, "CSecureSocketReader::SuplMessageLength() End\n");
       
   332 }
       
   333 
       
   334 void CSecureSocketReader::FireObservation()
       
   335 	{
       
   336 	SUPLLOG(ELogP1, "CSecureSocketReader::FireObservation() Begin\n");
       
   337 	CSuplMessageBase* message = NULL; 
       
   338 	TInt err;
       
   339 	TInt traperr = err = KErrNone;
       
   340 	TPtrC8 ptr(iBuffer);
       
   341 	TRAP(traperr, message = iDecoder->DecodeL(&ptr, err));
       
   342 	if ((err != KErrNone) || (traperr != KErrNone))
       
   343 		{
       
   344 		// Fire error message
       
   345 		SUPLLOG(ELogP1, "CSecureSocketReader::FireObservation() Firing ConnectionError\n");
       
   346 		TBool cleanup = EFalse;
       
   347 		iObserver.ConnectionError(MSuplSocketObserver::EFailedToDecode, iCallbackId, 0, cleanup);
       
   348 		if (cleanup)
       
   349 			{
       
   350 			delete this;
       
   351 			}
       
   352 		}
       
   353 	else
       
   354 		{
       
   355 		iObserver.MessageReceived(message); // Passes ownership
       
   356 		}
       
   357 	SUPLLOG(ELogP1, "CSecureSocketReader::FireObservation() End\n");
       
   358 	}