realtimenetprots/sipfw/SIP/Codec/src/CSIPCallIDHeader.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          : CSIPCallIDHeader.cpp
       
    15 // Part of       : SIP Codec
       
    16 // Version       : SIP/4.0 
       
    17 //
       
    18 
       
    19 
       
    20 
       
    21 #include "sipcallidheader.h"
       
    22 #include "sipcodecerr.h"
       
    23 #include "SIPSyntaxCheck.h"
       
    24 #include "sipcodecutils.h"
       
    25 #include "sipstrings.h"
       
    26 #include "sipstrconsts.h"
       
    27 #include "_sipcodecdefs.h"
       
    28 
       
    29 
       
    30 // ----------------------------------------------------------------------------
       
    31 // CSIPCallIDHeader::DecodeL
       
    32 // ----------------------------------------------------------------------------
       
    33 //
       
    34 EXPORT_C CSIPCallIDHeader* CSIPCallIDHeader::DecodeL (const TDesC8& aValue)
       
    35 	{
       
    36 	TLex8 lex(aValue);
       
    37 	lex.SkipSpace();
       
    38 	TPtrC8 value(lex.Remainder());
       
    39 	__ASSERT_ALWAYS(value.Length() > 0, User::Leave(KErrSipCodecCallIdHeader));
       
    40 	
       
    41 	CSIPCallIDHeader* self = new(ELeave)CSIPCallIDHeader;
       
    42 	CleanupStack::PushL(self);		
       
    43 	self->ParseL (value);
       
    44 	self->iCallID = value.AllocL();
       
    45 	CleanupStack::Pop(self);
       
    46 	return self;
       
    47 	}
       
    48 
       
    49 // ----------------------------------------------------------------------------
       
    50 // CSIPCallIDHeader::CSIPCallIDHeader
       
    51 // ----------------------------------------------------------------------------
       
    52 //
       
    53 CSIPCallIDHeader::CSIPCallIDHeader()
       
    54 	{
       
    55 	}
       
    56 
       
    57 // ----------------------------------------------------------------------------
       
    58 // CSIPCallIDHeader::~CSIPCallIDHeader
       
    59 // ----------------------------------------------------------------------------
       
    60 //
       
    61 EXPORT_C CSIPCallIDHeader::~CSIPCallIDHeader()
       
    62 	{
       
    63 	delete iCallID;
       
    64 	}
       
    65 
       
    66 // ----------------------------------------------------------------------------
       
    67 // CSIPCallIDHeader::CloneL
       
    68 // From CSIPHeaderBase:
       
    69 // ----------------------------------------------------------------------------
       
    70 //
       
    71 EXPORT_C CSIPHeaderBase* CSIPCallIDHeader::CloneL () const
       
    72 	{
       
    73 	CSIPCallIDHeader* clone = new(ELeave)CSIPCallIDHeader;
       
    74 	CleanupStack::PushL(clone);
       
    75 	clone->iCallID = iCallID->AllocL();
       
    76 	CleanupStack::Pop(clone);
       
    77 	return clone;
       
    78 	}
       
    79 
       
    80 // ----------------------------------------------------------------------------
       
    81 // CSIPCallIDHeader::operator==
       
    82 // ----------------------------------------------------------------------------
       
    83 //
       
    84 EXPORT_C TBool 
       
    85 CSIPCallIDHeader::operator==(const CSIPCallIDHeader& aCallIDHeader)
       
    86 	{
       
    87 	return (iCallID->Compare(*(aCallIDHeader.iCallID)) == 0);
       
    88 	}
       
    89 	
       
    90 // -----------------------------------------------------------------------------
       
    91 // CSIPCSeqHeader::InternalizeValueL
       
    92 // -----------------------------------------------------------------------------
       
    93 //
       
    94 EXPORT_C CSIPHeaderBase* 
       
    95 CSIPCallIDHeader::InternalizeValueL (RReadStream& aReadStream)
       
    96 	{
       
    97 	CSIPCallIDHeader* self = new(ELeave)CSIPCallIDHeader;
       
    98 	CleanupStack::PushL(self);
       
    99 	self->iCallID = SIPCodecUtils::ReadDescFromStreamL(aReadStream);
       
   100 	CleanupStack::Pop(self);
       
   101 	return self;
       
   102 	}	
       
   103 
       
   104 // ----------------------------------------------------------------------------
       
   105 // CSIPCallIDHeader::Name
       
   106 // From CSIPHeaderBase:
       
   107 // ----------------------------------------------------------------------------
       
   108 //
       
   109 EXPORT_C RStringF CSIPCallIDHeader::Name() const
       
   110 	{
       
   111 	return SIPStrings::StringF(SipStrConsts::ECallIDHeader);
       
   112 	}
       
   113 
       
   114 // ----------------------------------------------------------------------------
       
   115 // CSIPCallIDHeader::HasCompactName
       
   116 // From CSIPHeaderBase:
       
   117 // ----------------------------------------------------------------------------
       
   118 //
       
   119 TBool CSIPCallIDHeader::HasCompactName () const
       
   120 	{
       
   121 	return ETrue;
       
   122 	}
       
   123 
       
   124 // ----------------------------------------------------------------------------
       
   125 // CSIPCallIDHeader::CompactName
       
   126 // From CSIPHeaderBase:
       
   127 // ----------------------------------------------------------------------------
       
   128 //
       
   129 RStringF CSIPCallIDHeader::CompactName () const
       
   130 	{
       
   131 	return SIPStrings::StringF(SipStrConsts::ECallIDHeaderCompact);
       
   132 	}
       
   133 
       
   134 // ----------------------------------------------------------------------------
       
   135 // CSIPCallIDHeader::ToTextValueL
       
   136 // From CSIPHeaderBase:
       
   137 // ----------------------------------------------------------------------------
       
   138 //
       
   139 EXPORT_C HBufC8* CSIPCallIDHeader::ToTextValueL () const
       
   140 	{
       
   141 	return iCallID->AllocL();
       
   142 	}
       
   143 
       
   144 // ----------------------------------------------------------------------------
       
   145 // CSIPCallIDHeader::PreferredPlaceInMessage
       
   146 // From CSIPHeaderBase:
       
   147 // ----------------------------------------------------------------------------
       
   148 //
       
   149 CSIPHeaderBase::TPreferredPlace
       
   150 CSIPCallIDHeader::PreferredPlaceInMessage () const
       
   151 	{
       
   152 	return CSIPHeaderBase::EMiddle;
       
   153 	}
       
   154 	
       
   155 // ----------------------------------------------------------------------------
       
   156 // CSIPCallIDHeader::BaseDecodeL
       
   157 // ----------------------------------------------------------------------------
       
   158 //
       
   159 RPointerArray<CSIPHeaderBase> 
       
   160 CSIPCallIDHeader::BaseDecodeL (const TDesC8& aValue)
       
   161 	{
       
   162 	CSIPCallIDHeader* header = DecodeL(aValue);
       
   163 	CleanupStack::PushL(header);
       
   164 	RPointerArray<CSIPHeaderBase> headers;
       
   165 	User::LeaveIfError (headers.Append(header));
       
   166 	CleanupStack::Pop(header);
       
   167 	return headers;	
       
   168 	}	
       
   169 
       
   170 // -----------------------------------------------------------------------------
       
   171 // CSIPCSeqHeader::ExternalizeValueL
       
   172 // From CSIPHeaderBase:
       
   173 // -----------------------------------------------------------------------------
       
   174 //
       
   175 void CSIPCallIDHeader::ExternalizeValueL (RWriteStream& aWriteStream) const
       
   176 	{
       
   177 	aWriteStream.WriteUint32L(iCallID->Length());
       
   178 	aWriteStream.WriteL(*iCallID);
       
   179 	}
       
   180 
       
   181 // ----------------------------------------------------------------------------
       
   182 // CSIPCallIDHeader::ParseL
       
   183 // ----------------------------------------------------------------------------
       
   184 //
       
   185 void CSIPCallIDHeader::ParseL (const TDesC8& aValue)
       
   186 	{
       
   187 	__ASSERT_ALWAYS (aValue.Length() > 0, 
       
   188 		User::Leave(KErrSipCodecCallIdHeader));
       
   189     
       
   190     TLex8 lex(aValue);
       
   191     TPtrC8 value(lex.NextToken());
       
   192     lex.SkipSpace();
       
   193     if (lex.Remainder().Length() > 0) 
       
   194 		{
       
   195 		User::Leave(KErrSipCodecCallIdHeader);
       
   196 		}
       
   197 
       
   198 	TInt atPos = value.Locate('@');
       
   199 	if (atPos == 0 || atPos == value.Length()-1)
       
   200 		{
       
   201 		User::Leave(KErrSipCodecCallIdHeader);
       
   202 		}
       
   203 
       
   204 	if (atPos < 0) // word
       
   205 		{
       
   206 		if (!SIPSyntaxCheck::Word(value))
       
   207 			{
       
   208 			User::Leave(KErrSipCodecCallIdHeader);
       
   209 			}
       
   210 		}
       
   211 	else // word@word
       
   212 		{
       
   213 		if (!SIPSyntaxCheck::Word(value.Left(atPos)))
       
   214 			{
       
   215 			User::Leave(KErrSipCodecCallIdHeader);
       
   216 			}
       
   217 		if (!SIPSyntaxCheck::Word(value.Mid(atPos+1)))
       
   218 			{
       
   219 			User::Leave(KErrSipCodecCallIdHeader);
       
   220 			}
       
   221 		}
       
   222 	}