realtimenetprots/sipfw/SIP/Codec/src/CSIPViaHeaderParams.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          : CSIPViaHeaderParams.cpp
       
    15 // Part of       : SIP Codec
       
    16 // Version       : SIP/4.0 
       
    17 //
       
    18 
       
    19 
       
    20 
       
    21 #include "CSIPViaHeaderParams.h"
       
    22 #include "sipcodecerr.h"
       
    23 #include "SIPSyntaxCheck.h"
       
    24 #include "sipstrings.h"
       
    25 #include "sipstrconsts.h"
       
    26 
       
    27 
       
    28 // -----------------------------------------------------------------------------
       
    29 // CSIPViaHeaderParams::DecodeL
       
    30 // -----------------------------------------------------------------------------
       
    31 //
       
    32 CSIPViaHeaderParams* CSIPViaHeaderParams::DecodeL(const TDesC8& aValue)
       
    33 	{
       
    34 	__ASSERT_ALWAYS (aValue.Length() > 0, User::Leave(KErrSipCodecViaHeader));
       
    35 
       
    36 	CSIPViaHeaderParams* params = new(ELeave)CSIPViaHeaderParams;
       
    37 	CleanupStack::PushL (params);
       
    38 	params->ParseL(aValue);
       
    39 	CleanupStack::Pop(params);
       
    40 	return params;
       
    41 	}
       
    42 
       
    43 // -----------------------------------------------------------------------------
       
    44 // CSIPViaHeaderParams::NewL
       
    45 // -----------------------------------------------------------------------------
       
    46 //
       
    47 CSIPViaHeaderParams* CSIPViaHeaderParams::NewL(
       
    48     const CSIPViaHeaderParams& aParams)
       
    49 	{
       
    50 	CSIPViaHeaderParams* self = CSIPViaHeaderParams::NewLC (aParams);
       
    51 	CleanupStack::Pop(self);
       
    52 	return self;
       
    53 	}
       
    54 
       
    55 // -----------------------------------------------------------------------------
       
    56 // CSIPViaHeaderParams::NewLC
       
    57 // -----------------------------------------------------------------------------
       
    58 //
       
    59 CSIPViaHeaderParams* CSIPViaHeaderParams::NewLC(
       
    60     const CSIPViaHeaderParams& aParams)
       
    61 	{
       
    62 	CSIPViaHeaderParams* self = new(ELeave)CSIPViaHeaderParams;
       
    63 	CleanupStack::PushL(self);
       
    64 	self->ConstructL(aParams);
       
    65 	return self;
       
    66 	}	
       
    67 
       
    68 // -----------------------------------------------------------------------------
       
    69 // CSIPViaHeaderParams::CSIPViaHeaderParams
       
    70 // -----------------------------------------------------------------------------
       
    71 //
       
    72 CSIPViaHeaderParams::CSIPViaHeaderParams ()
       
    73  : CSIPParamContainerBase(';')
       
    74 	{
       
    75 	}
       
    76 
       
    77 // -----------------------------------------------------------------------------
       
    78 // CSIPViaHeaderParams::~CSIPViaHeaderParams
       
    79 // -----------------------------------------------------------------------------
       
    80 //
       
    81 CSIPViaHeaderParams::~CSIPViaHeaderParams ()
       
    82 	{
       
    83 	}
       
    84 
       
    85 // -----------------------------------------------------------------------------
       
    86 // CSIPViaHeaderParams::operator==
       
    87 // -----------------------------------------------------------------------------
       
    88 //
       
    89 TBool CSIPViaHeaderParams::operator==(const CSIPViaHeaderParams& aParams) const
       
    90 	{
       
    91 	// All parameters in a Via-header must be present in the other one
       
    92 	// and their values must match.
       
    93 	for (TInt i=0; i < iParams.Count(); i++)
       
    94 		{
       
    95 		TInt index = aParams.FindParamIndex(iParams[i]->Name());
       
    96 		if (index < 0)
       
    97 			{
       
    98 			return EFalse;
       
    99 			}
       
   100 		if (!(*(aParams.iParams[index]) == *(iParams[i])))
       
   101 			{
       
   102 			return EFalse;
       
   103 			}
       
   104 		}
       
   105 	for (TInt j=0; j < aParams.iParams.Count(); j++)
       
   106 		{
       
   107 		TInt index = FindParamIndex(aParams.iParams[j]->Name());
       
   108 		if (index < 0)
       
   109 			{
       
   110 			return EFalse;
       
   111 			}
       
   112 		}
       
   113 	return ETrue;
       
   114 	}
       
   115 
       
   116 // -----------------------------------------------------------------------------
       
   117 // CSIPViaHeaderParams::CheckParamL
       
   118 // -----------------------------------------------------------------------------
       
   119 //
       
   120 void CSIPViaHeaderParams::CheckParamL (CSIPParam& aParam) const
       
   121 	{
       
   122 	RStringF name = aParam.Name();
       
   123 	TPtrC8 value = aParam.Value().DesC(); 	
       
   124 	// ttl
       
   125 	if (name == SIPStrings::StringF(SipStrConsts::ETtl))
       
   126 		{
       
   127 		if (!SIPSyntaxCheck::TtlValue(value))
       
   128 			{
       
   129 			User::Leave(KErrSipCodecViaHeader);
       
   130 			}
       
   131 		return;
       
   132 		}
       
   133 	// maddr
       
   134 	if (name == SIPStrings::StringF(SipStrConsts::EMaddr))
       
   135 		{
       
   136 		if (!SIPSyntaxCheck::Host(value))
       
   137 			{
       
   138 			User::Leave(KErrSipCodecViaHeader);
       
   139 			}
       
   140 		return;
       
   141 		}
       
   142 	// received
       
   143 	if (name == SIPStrings::StringF(SipStrConsts::EReceived))
       
   144 		{
       
   145 		CSIPHostPort::TType hostType;
       
   146 		if (SIPSyntaxCheck::HostType(value,hostType) != KErrNone)
       
   147 			{
       
   148 			User::Leave(KErrSipCodecViaHeader);
       
   149 			}
       
   150 		if (!(hostType == CSIPHostPort::ESIPIpv4 || 
       
   151 		      hostType == CSIPHostPort::ESIPIpv6))
       
   152 			{
       
   153 			User::Leave(KErrSipCodecViaHeader);
       
   154 			}
       
   155 		return;
       
   156 		}
       
   157 	// branch
       
   158 	if (name == SIPStrings::StringF(SipStrConsts::EBranch))
       
   159 		{
       
   160 		if (!SIPSyntaxCheck::Token(value))
       
   161 			{
       
   162 			User::Leave(KErrSipCodecViaHeader);
       
   163 			}
       
   164 		return;
       
   165 		}
       
   166     // generic-param
       
   167     CheckGenericParamL(aParam, KErrSipCodecViaHeader);
       
   168 	}