realtimenetprots/sipfw/SIP/Codec/src/CSIPAllowEventsHeader.cpp
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     1 // Copyright (c) 2004-2009 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          : CSIPAllowEventsHeader.cpp
       
    15 // Part of       : SIP Codec
       
    16 // Version       : SIP/4.0 
       
    17 //
       
    18 
       
    19 
       
    20 
       
    21 
       
    22 #include "sipalloweventsheader.h"
       
    23 #include "CSIPTokenizer.h"
       
    24 #include "sipcodecerr.h"
       
    25 #include "SIPSyntaxCheck.h"
       
    26 #include "sipstrings.h"
       
    27 #include "sipstrconsts.h"
       
    28 #include "sipcodecutils.h"
       
    29 #include "_sipcodecdefs.h"
       
    30 
       
    31 _LIT8(KDot, ".");
       
    32 
       
    33 
       
    34 // ----------------------------------------------------------------------------
       
    35 // CSIPAllowEventsHeader::DecodeL
       
    36 // ----------------------------------------------------------------------------
       
    37 //
       
    38 EXPORT_C RPointerArray<CSIPAllowEventsHeader> 
       
    39 CSIPAllowEventsHeader::DecodeL (const TDesC8& aValue)
       
    40 	{
       
    41     RPointerArray<CSIPHeaderBase> baseheaders = BaseDecodeL(aValue);
       
    42     CSIPHeaderBase::PushLC(&baseheaders);
       
    43     RPointerArray<CSIPAllowEventsHeader> allowHeaders;
       
    44     CleanupClosePushL(allowHeaders);
       
    45     TInt count = baseheaders.Count();
       
    46     for (TInt i=0; i < count; i++)
       
    47 		{
       
    48 		CSIPAllowEventsHeader* header = 
       
    49             static_cast<CSIPAllowEventsHeader*>(baseheaders[i]);
       
    50 		User::LeaveIfError (allowHeaders.Append(header));
       
    51 		}
       
    52     CleanupStack::Pop(2); //allowHeaders, baseheaders
       
    53     baseheaders.Close();
       
    54     return allowHeaders;
       
    55     }
       
    56 
       
    57 // ----------------------------------------------------------------------------
       
    58 // CSIPAllowEventsHeader::NewL
       
    59 // ----------------------------------------------------------------------------
       
    60 //
       
    61 EXPORT_C CSIPAllowEventsHeader* CSIPAllowEventsHeader::NewL(
       
    62     const TDesC8& aEventPackage)
       
    63 	{
       
    64 	CSIPAllowEventsHeader* self = CSIPAllowEventsHeader::NewLC(aEventPackage);
       
    65 	CleanupStack::Pop(self);
       
    66 	return self;
       
    67 	}
       
    68 
       
    69 // ----------------------------------------------------------------------------
       
    70 // CSIPEventHeader::NewLC
       
    71 // ----------------------------------------------------------------------------
       
    72 //
       
    73 EXPORT_C CSIPAllowEventsHeader* CSIPAllowEventsHeader::NewLC(
       
    74     const TDesC8& aEventPackage)
       
    75 	{
       
    76 	CSIPAllowEventsHeader* self=new(ELeave) CSIPAllowEventsHeader();
       
    77 	CleanupStack::PushL(self);
       
    78 	self->ConstructL(aEventPackage);
       
    79 	return self;
       
    80 	}
       
    81 
       
    82 // ----------------------------------------------------------------------------
       
    83 // CSIPAllowEventsHeader::CSIPAllowEventsHeader
       
    84 // ----------------------------------------------------------------------------
       
    85 //
       
    86 CSIPAllowEventsHeader::CSIPAllowEventsHeader()
       
    87 	{
       
    88 	}
       
    89 
       
    90 // ----------------------------------------------------------------------------
       
    91 // CSIPAllowEventsHeader::ConstructL
       
    92 // ----------------------------------------------------------------------------
       
    93 //
       
    94 void CSIPAllowEventsHeader::ConstructL()
       
    95 	{
       
    96 	iEventTemplates = new(ELeave) CDesC8ArraySeg(1);
       
    97 	}
       
    98 
       
    99 // ----------------------------------------------------------------------------
       
   100 // CSIPAllowEventsHeader::ConstructL
       
   101 // ----------------------------------------------------------------------------
       
   102 //
       
   103 void CSIPAllowEventsHeader::ConstructL (const TDesC8& aEventPackage)
       
   104 	{
       
   105 	ConstructL();
       
   106 	SetEventPackageL (aEventPackage);
       
   107 	}
       
   108 
       
   109 // ----------------------------------------------------------------------------
       
   110 // CSIPAllowEventsHeader::ConstructL
       
   111 // ----------------------------------------------------------------------------
       
   112 //
       
   113 void 
       
   114 CSIPAllowEventsHeader::ConstructL (const CSIPAllowEventsHeader& 
       
   115 										aSIPAllowEventsHeader)
       
   116 	{
       
   117 	SetEventTemplatesL(*aSIPAllowEventsHeader.iEventTemplates);
       
   118 	SetEventPackageL(aSIPAllowEventsHeader.EventPackage());
       
   119 	}
       
   120 
       
   121 // ----------------------------------------------------------------------------
       
   122 // CSIPAllowEventsHeader::~CSIPAllowEventsHeader
       
   123 // ----------------------------------------------------------------------------
       
   124 //
       
   125 EXPORT_C CSIPAllowEventsHeader::~CSIPAllowEventsHeader()
       
   126 	{
       
   127 	delete iEventTemplates;
       
   128 	delete iEventPackage;
       
   129 	}
       
   130 
       
   131 // ----------------------------------------------------------------------------
       
   132 // CSIPAllowEventsHeader::CloneL
       
   133 // From CSIPHeaderBase:
       
   134 // ----------------------------------------------------------------------------
       
   135 //
       
   136 EXPORT_C CSIPHeaderBase* CSIPAllowEventsHeader::CloneL () const
       
   137 	{
       
   138     CSIPAllowEventsHeader* clone = new (ELeave) CSIPAllowEventsHeader;
       
   139     CleanupStack::PushL(clone);
       
   140     clone->ConstructL(*this);
       
   141     CleanupStack::Pop(clone);
       
   142     return clone;
       
   143 	}
       
   144 
       
   145 // ----------------------------------------------------------------------------
       
   146 // CSIPAllowEventsHeader::Name
       
   147 // From CSIPHeaderBase:
       
   148 // ----------------------------------------------------------------------------
       
   149 //
       
   150 EXPORT_C RStringF CSIPAllowEventsHeader::Name () const
       
   151 	{
       
   152     return SIPStrings::StringF(SipStrConsts::EAllowEventsHeader);
       
   153 	}
       
   154 
       
   155 // ----------------------------------------------------------------------------
       
   156 // CSIPAllowEventsHeader::HasCompactName
       
   157 // From CSIPHeaderBase:
       
   158 // ----------------------------------------------------------------------------
       
   159 //
       
   160 TBool CSIPAllowEventsHeader::HasCompactName () const
       
   161 	{
       
   162 	return ETrue;
       
   163 	}
       
   164 
       
   165 // ----------------------------------------------------------------------------
       
   166 // CSIPAllowEventsHeader::CompactName
       
   167 // From CSIPHeaderBase:
       
   168 // ----------------------------------------------------------------------------
       
   169 //
       
   170 RStringF CSIPAllowEventsHeader::CompactName () const
       
   171 	{
       
   172 	return SIPStrings::StringF(SipStrConsts::EAllowEventsHeaderCompact);
       
   173 	}
       
   174 
       
   175 // ----------------------------------------------------------------------------
       
   176 // CSIPAllowEventsHeader::SetEventPackageL
       
   177 // ----------------------------------------------------------------------------
       
   178 //
       
   179 EXPORT_C void 
       
   180 CSIPAllowEventsHeader::SetEventPackageL (const TDesC8& aEventPackage)
       
   181 	{
       
   182 	HBufC8* tmp = aEventPackage.AllocLC();
       
   183 	tmp->Des().Trim();
       
   184 	if (!SIPSyntaxCheck::Token(*tmp) || (tmp->Find(KDot) != KErrNotFound))
       
   185 		{
       
   186 		User::Leave(KErrSipCodecAllowEventsHeader);
       
   187 		}
       
   188 	CleanupStack::Pop(tmp);
       
   189 	delete iEventPackage;
       
   190 	iEventPackage = tmp;
       
   191 	}
       
   192 
       
   193 // ----------------------------------------------------------------------------
       
   194 // CSIPAllowEventsHeader::EventPackage
       
   195 // ----------------------------------------------------------------------------
       
   196 //
       
   197 EXPORT_C const TDesC8& CSIPAllowEventsHeader::EventPackage() const
       
   198 	{
       
   199 	return *iEventPackage;
       
   200 	}
       
   201 
       
   202 // ----------------------------------------------------------------------------
       
   203 // CSIPAllowEventsHeader::SetEventTemplatesL
       
   204 // ----------------------------------------------------------------------------
       
   205 //
       
   206 EXPORT_C void CSIPAllowEventsHeader::SetEventTemplatesL(
       
   207     const MDesC8Array& aEventTemplates)
       
   208 	{
       
   209 	CDesC8ArraySeg* eventTemplates = new(ELeave) CDesC8ArraySeg(1);
       
   210 	CleanupStack::PushL(eventTemplates);
       
   211 	for (TInt i=0; i < aEventTemplates.MdcaCount(); i++)
       
   212 		{
       
   213 		CheckTemplateL(aEventTemplates.MdcaPoint(i));
       
   214 		eventTemplates->AppendL(aEventTemplates.MdcaPoint(i));
       
   215 		}
       
   216     CleanupStack::Pop(eventTemplates);
       
   217 	delete iEventTemplates;
       
   218 	iEventTemplates = eventTemplates;
       
   219 	}
       
   220 
       
   221 // ----------------------------------------------------------------------------
       
   222 // CSIPAllowEventsHeader::EventTemplates
       
   223 // ----------------------------------------------------------------------------
       
   224 //
       
   225 EXPORT_C const MDesC8Array& CSIPAllowEventsHeader::EventTemplates () const
       
   226 	{
       
   227 	return *iEventTemplates;
       
   228 	}
       
   229 
       
   230 // ----------------------------------------------------------------------------
       
   231 // CSIPAllowEventsHeader::MoreThanOneAllowed
       
   232 // From CSIPHeaderBase:
       
   233 // ----------------------------------------------------------------------------
       
   234 //
       
   235 TBool CSIPAllowEventsHeader::MoreThanOneAllowed () const
       
   236 	{
       
   237 	return ETrue;
       
   238 	}
       
   239 
       
   240 // ----------------------------------------------------------------------------
       
   241 // CSIPAllowEventsHeader::CheckTemplateL
       
   242 // ----------------------------------------------------------------------------
       
   243 //
       
   244 void CSIPAllowEventsHeader::CheckTemplateL (const TDesC8& aParam) const
       
   245 	{
       
   246 	// event-template Param
       
   247 	if (!SIPSyntaxCheck::Token(aParam) || 
       
   248         ((aParam).Find(KDot) != KErrNotFound))
       
   249 		{
       
   250 		User::Leave(KErrSipCodecAllowEventsHeader);
       
   251 		}
       
   252 	}
       
   253 
       
   254 // ----------------------------------------------------------------------------
       
   255 // CSIPAllowEventsHeader::ToTextValueL
       
   256 // From CSIPHeaderBase:
       
   257 // ----------------------------------------------------------------------------
       
   258 //
       
   259 EXPORT_C HBufC8* CSIPAllowEventsHeader::ToTextValueL () const
       
   260 	{
       
   261 	TUint encodedLength = 0;
       
   262 	RPointerArray<HBufC8> templatesAsText;
       
   263 	CleanupStack::PushL (TCleanupItem(ResetAndDestroy,&templatesAsText));
       
   264 
       
   265 	encodedLength += iEventPackage->Length(); 
       
   266 	for (TInt i=0; i < iEventTemplates->MdcaCount(); i++)
       
   267 		{
       
   268 		HBufC8* templateAsText = (iEventTemplates->MdcaPoint(i)).AllocLC();
       
   269 		encodedLength += templateAsText->Length() + 1;// param separator length
       
   270 		User::LeaveIfError (templatesAsText.Append(templateAsText));
       
   271 		CleanupStack::Pop(templateAsText);
       
   272 		}
       
   273 
       
   274 	HBufC8* encodedHeader = HBufC8::NewL (encodedLength);
       
   275 	TPtr8 encodedHeaderPtr = encodedHeader->Des();
       
   276 
       
   277 	encodedHeaderPtr.Append(*iEventPackage);
       
   278 	
       
   279 	for (TInt j=0; j < templatesAsText.Count(); j++)
       
   280 		{
       
   281 		encodedHeaderPtr.Append('.'); // dot
       
   282 		encodedHeaderPtr.Append (*templatesAsText[j]);
       
   283 		}
       
   284 	
       
   285 	CleanupStack::PopAndDestroy(); // templatesAsText
       
   286 	return encodedHeader;
       
   287 	}
       
   288 
       
   289 // ----------------------------------------------------------------------------
       
   290 // CSIPAllowEventsHeader::InternalizeValueL
       
   291 // ----------------------------------------------------------------------------
       
   292 //
       
   293 EXPORT_C CSIPHeaderBase* CSIPAllowEventsHeader::InternalizeValueL (
       
   294     RReadStream& aReadStream)
       
   295 	{
       
   296 	CSIPAllowEventsHeader* self = new(ELeave)CSIPAllowEventsHeader;
       
   297 	CleanupStack::PushL(self);
       
   298 	self->ConstructL();
       
   299 	self->DoInternalizeValueL(aReadStream);
       
   300 	CleanupStack::Pop(self);
       
   301 	return self;
       
   302 	}
       
   303 
       
   304 // ----------------------------------------------------------------------------
       
   305 // CSIPAllowEventsHeader::DoInternalizeValueL
       
   306 // ----------------------------------------------------------------------------
       
   307 //
       
   308 void CSIPAllowEventsHeader::DoInternalizeValueL (RReadStream& aReadStream)
       
   309 	{
       
   310     iEventPackage = SIPCodecUtils::ReadDescFromStreamL(aReadStream);
       
   311     
       
   312     TUint32 templateCount = aReadStream.ReadUint32L();
       
   313 
       
   314 	for (TUint32 i=0; i < templateCount; i++)
       
   315 		{
       
   316         HBufC8* value = SIPCodecUtils::ReadDescFromStreamL(aReadStream);
       
   317         CleanupStack::PushL(value);
       
   318 		iEventTemplates->AppendL(*value);
       
   319 		CleanupStack::PopAndDestroy(value);
       
   320 		}
       
   321 	}	
       
   322 
       
   323 // ----------------------------------------------------------------------------
       
   324 // CSIPAllowEventsHeader::ExternalizeValueL
       
   325 // From CSIPHeaderBase:
       
   326 // ----------------------------------------------------------------------------
       
   327 //
       
   328 void 
       
   329 CSIPAllowEventsHeader::ExternalizeValueL (RWriteStream& aWriteStream) const
       
   330 	{
       
   331 	aWriteStream.WriteUint32L (iEventPackage->Length());
       
   332 	if (iEventPackage->Length() > 0)
       
   333 		{
       
   334 		aWriteStream.WriteL (this->EventPackage());
       
   335 		}
       
   336 	aWriteStream.WriteUint32L (iEventTemplates->MdcaCount());
       
   337 	for (TInt i=0; i < iEventTemplates->MdcaCount(); i++)
       
   338 		{
       
   339 		aWriteStream.WriteUint32L (iEventTemplates->MdcaPoint(i).Length());
       
   340 		aWriteStream.WriteL (iEventTemplates->MdcaPoint(i));
       
   341 		}
       
   342 	}
       
   343 
       
   344 // ----------------------------------------------------------------------------
       
   345 // CSIPAllowEventsHeader::PreferredPlaceInMessage
       
   346 // From CSIPHeaderBase:
       
   347 // ----------------------------------------------------------------------------
       
   348 //
       
   349 CSIPHeaderBase::TPreferredPlace
       
   350 CSIPAllowEventsHeader::PreferredPlaceInMessage () const
       
   351 	{
       
   352 	return CSIPHeaderBase::EBottom;
       
   353 	}
       
   354 
       
   355 // ----------------------------------------------------------------------------
       
   356 // CSIPAllowEventsHeader::BaseDecodeL
       
   357 // ----------------------------------------------------------------------------
       
   358 //
       
   359 RPointerArray<CSIPHeaderBase> CSIPAllowEventsHeader::BaseDecodeL (
       
   360     const TDesC8& aValue)
       
   361 	{
       
   362 	__ASSERT_ALWAYS (aValue.Length() > 0, 
       
   363 		User::Leave(KErrSipCodecAllowEventsHeader));
       
   364 
       
   365 	RPointerArray<CSIPHeaderBase> headers;
       
   366     CSIPHeaderBase::PushLC(&headers);
       
   367 	CSIPTokenizer* tokenizer = CSIPTokenizer::NewLC(aValue, ',');
       
   368 	for (TInt i=0; i < tokenizer->Tokens().Count(); i++)
       
   369 		{
       
   370 		CSIPAllowEventsHeader* allowEventsHeader = 
       
   371 						new (ELeave) CSIPAllowEventsHeader;
       
   372         CleanupStack::PushL(allowEventsHeader);
       
   373         allowEventsHeader->ConstructL();
       
   374 		allowEventsHeader->ParseL (tokenizer->Tokens()[i]);
       
   375 		User::LeaveIfError (headers.Append(allowEventsHeader));
       
   376 		CleanupStack::Pop(); // allowEventsHeader
       
   377 		}
       
   378 	CleanupStack::PopAndDestroy(tokenizer);
       
   379 	CleanupStack::Pop(); // headers 
       
   380 	return headers;
       
   381 	}
       
   382 
       
   383 // ----------------------------------------------------------------------------
       
   384 // CSIPAllowEventsHeader::ParseL
       
   385 // ----------------------------------------------------------------------------
       
   386 //
       
   387 void CSIPAllowEventsHeader::ParseL (const TDesC8& aValue)
       
   388 	{
       
   389 	__ASSERT_ALWAYS (aValue.Length() > 0, 
       
   390 		User::Leave (KErrSipCodecAllowEventsHeader));
       
   391 	HBufC8* tmp = aValue.AllocLC();
       
   392 	tmp->Des().Trim();
       
   393 
       
   394 	CSIPTokenizer* tokenizer = CSIPTokenizer::NewLC(*tmp, '.');
       
   395 	TLex8 lex(tokenizer->Tokens()[0]);
       
   396 	lex.SkipSpace();
       
   397 	this->SetEventPackageL(lex.Remainder());
       
   398 
       
   399 	for (TInt j=1; j < tokenizer->Tokens().Count(); j++)
       
   400 		{
       
   401 		CheckTemplateL((tokenizer->Tokens()[j]));
       
   402 		iEventTemplates->AppendL((tokenizer->Tokens()[j]));
       
   403 		}
       
   404 
       
   405 	CleanupStack::PopAndDestroy(tokenizer);
       
   406 	CleanupStack::PopAndDestroy(tmp);
       
   407 	}
       
   408 
       
   409 // ----------------------------------------------------------------------------
       
   410 // CSIPAllowEventsHeader::ResetAndDestroy
       
   411 // ----------------------------------------------------------------------------
       
   412 //
       
   413 void CSIPAllowEventsHeader::ResetAndDestroy (TAny* anArray)
       
   414 	{
       
   415 	(reinterpret_cast<RPointerArray<HBufC8>*> (anArray))->ResetAndDestroy();
       
   416 	}