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1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Name : CSIPMessageParser.cpp |
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15 // Part of : SIP Codec |
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16 // Version : SIP/4.0 |
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17 // |
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18 |
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19 |
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20 |
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21 #include "sipmessageparser.h" |
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22 #include "CSIPPreParser.h" |
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23 #include "TSIPHeaderNameValueIter.h" |
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24 #include "CSIPHeaderNameValue.h" |
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25 #include "SIPHeaderLookup.h" |
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26 #include "sipcodecerr.h" |
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27 #include "sipmessage.h" |
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28 #include "siprequest.h" |
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29 #include "sipresponse.h" |
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30 #include "sipheaderbase.h" |
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31 #include "sipuri.h" |
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32 #include "uricontainer.h" |
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33 #include "_sipcodecdefs.h" |
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34 |
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35 _LIT8(KSIPWithSlash, "SIP/"); |
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36 |
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37 |
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38 // ----------------------------------------------------------------------------- |
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39 // CSIPMessageParser::NewL |
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40 // ----------------------------------------------------------------------------- |
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41 // |
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42 EXPORT_C CSIPMessageParser* CSIPMessageParser::NewL () |
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43 { |
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44 CSIPMessageParser* self= CSIPMessageParser::NewLC (); |
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45 CleanupStack::Pop(self); |
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46 return self; |
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47 } |
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48 |
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49 // ----------------------------------------------------------------------------- |
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50 // CSIPMessageParser::NewLC |
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51 // ----------------------------------------------------------------------------- |
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52 // |
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53 EXPORT_C CSIPMessageParser* CSIPMessageParser::NewLC () |
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54 { |
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55 CSIPMessageParser* self=new(ELeave) CSIPMessageParser; |
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56 CleanupStack::PushL(self); |
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57 self->ConstructL(); |
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58 return self; |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CSIPMessageParser::CSIPMessageParser |
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63 // ----------------------------------------------------------------------------- |
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64 // |
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65 CSIPMessageParser::CSIPMessageParser() |
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66 { |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // CSIPMessageParser::ConstructL |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 void CSIPMessageParser::ConstructL () |
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74 { |
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75 SIPHeaderLookup::OpenL (); |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CSIPMessageParser::~CSIPMessageParser |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 EXPORT_C CSIPMessageParser::~CSIPMessageParser() |
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83 { |
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84 SIPHeaderLookup::Close (); |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // CSIPMessageParser::FromText |
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89 // ----------------------------------------------------------------------------- |
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90 // |
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91 EXPORT_C TInt CSIPMessageParser::FromText (HBufC8* aInputSIPMessage, |
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92 CSIPMessage** aSIPMessage) |
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93 { |
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94 TInt parseErrorInHeaders=KErrNone; |
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95 CSIPMessage* sipMessage = 0; |
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96 TRAPD (err, sipMessage = FromTextL (aInputSIPMessage,parseErrorInHeaders)); |
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97 *aSIPMessage = sipMessage; |
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98 if (err == KErrNone) |
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99 { |
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100 err = parseErrorInHeaders; |
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101 } |
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102 return err; |
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103 } |
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104 |
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105 // ----------------------------------------------------------------------------- |
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106 // CSIPMessageParser::FromTextL |
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107 // ----------------------------------------------------------------------------- |
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108 // |
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109 CSIPMessage* CSIPMessageParser::FromTextL (HBufC8* aInputSIPMessage, |
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110 TInt& aParseErrorInHeaders) |
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111 { |
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112 __ASSERT_ALWAYS (aInputSIPMessage != 0, User::Leave(KErrArgument)); |
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113 |
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114 aParseErrorInHeaders = KErrNone; |
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115 CSIPPreParser* preParser = CSIPPreParser::NewL(aInputSIPMessage); |
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116 CleanupStack::PushL(preParser); |
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117 CSIPMessage* sipMessage = CreateSIPMessageLC (preParser->FirstLineL()); |
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118 |
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119 TSIPHeaderNameValueIter iter (*preParser); |
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120 while (!iter.End()) |
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121 { |
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122 CSIPHeaderNameValue* header = iter.NextL (); |
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123 RPointerArray<CSIPHeaderBase> headerArray; |
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124 TRAPD (err, headerArray = |
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125 SIPHeaderLookup::CreateHeaderL(header->Name(),header->Value())); |
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126 delete header; |
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127 if (err == KErrNoMemory) |
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128 { |
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129 User::Leave(KErrNoMemory); |
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130 } |
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131 if (err == KErrNone) |
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132 { |
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133 CSIPHeaderBase::PushLC(&headerArray); |
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134 for (TInt i=0; i < headerArray.Count(); i++) |
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135 { |
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136 sipMessage->AddHeaderL (headerArray[i]); |
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137 headerArray[i] = 0; |
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138 } |
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139 CleanupStack::PopAndDestroy(1); // headerArray |
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140 } |
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141 else // ignore header with syntax error |
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142 { |
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143 // Set the first error |
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144 if (aParseErrorInHeaders == KErrNone) |
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145 { |
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146 aParseErrorInHeaders = err; |
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147 } |
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148 } |
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149 } |
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150 |
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151 HBufC8* content = preParser->ContentL(); |
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152 sipMessage->SetContent (content); |
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153 CleanupStack::Pop(sipMessage); |
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154 CleanupStack::PopAndDestroy(preParser); |
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155 return sipMessage; |
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156 } |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // CSIPMessageParser::CreateSIPMessageLC |
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160 // ----------------------------------------------------------------------------- |
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161 // |
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162 CSIPMessage* CSIPMessageParser::CreateSIPMessageLC (const TDesC8& aFirstLine) |
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163 { |
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164 CSIPMessage* sipMessage = NULL; |
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165 |
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166 if (aFirstLine.FindF(KSIPWithSlash) == 0) |
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167 { |
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168 sipMessage = CreateSIPResponseLC(aFirstLine); |
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169 } |
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170 else |
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171 { |
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172 sipMessage = CreateSIPRequestLC(aFirstLine); |
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173 } |
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174 |
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175 return sipMessage; |
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176 } |
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177 |
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178 // ----------------------------------------------------------------------------- |
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179 // CSIPMessageParser::CreateSIPRequestLC |
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180 // ----------------------------------------------------------------------------- |
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181 // |
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182 CSIPRequest* CSIPMessageParser::CreateSIPRequestLC (const TDesC8& aRequestLine) |
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183 { |
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184 __ASSERT_ALWAYS (aRequestLine.Length()>0, |
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185 User::Leave(KErrSipCodecRequestLine)); |
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186 |
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187 //Method SP Request-URI SP SIP-Version |
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188 CSIPRequest* sipRequest = CSIPRequest::NewLC(); |
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189 TLex8 lex(aRequestLine); |
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190 |
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191 //Method |
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192 TPtrC8 method = lex.NextToken(); |
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193 sipRequest->SetMethodL(method); |
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194 |
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195 //Request-URI |
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196 CURIContainer* uri = CURIContainer::DecodeL(lex.NextToken()); |
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197 CleanupStack::PushL(uri); |
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198 sipRequest->SetRequestURIL (uri); |
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199 CleanupStack::Pop(uri); |
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200 |
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201 //SIP-Version |
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202 sipRequest->SetSIPVersionL(lex.NextToken()); |
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203 |
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204 return sipRequest; |
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205 } |
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206 |
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207 // ----------------------------------------------------------------------------- |
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208 // CSIPMessageParser::CreateSIPResponseLC |
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209 // ----------------------------------------------------------------------------- |
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210 // |
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211 CSIPResponse* CSIPMessageParser::CreateSIPResponseLC (const TDesC8& aStatusLine) |
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212 { |
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213 __ASSERT_ALWAYS (aStatusLine.Length()>0, |
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214 User::Leave(KErrSipCodecResponseLine)); |
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215 |
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216 //SIP-Version SP Status-Code SP Reason-Phrase |
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217 CSIPResponse* sipResponse = CSIPResponse::NewL(); |
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218 CleanupStack::PushL (sipResponse); |
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219 TLex8 lex(aStatusLine); |
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220 |
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221 sipResponse->SetSIPVersionL (lex.NextToken()); |
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222 sipResponse->SetResponseCodeL (ParseResponseCodeL(lex.NextToken())); |
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223 if (lex.Get() != ' ') |
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224 { |
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225 User::Leave(KErrSipCodecResponseLine); |
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226 } |
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227 sipResponse->SetReasonPhraseL (lex.Remainder()); |
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228 |
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229 return sipResponse; |
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230 } |
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231 |
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232 // ----------------------------------------------------------------------------- |
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233 // CSIPMessageParser::ParseResponseCodeL |
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234 // ----------------------------------------------------------------------------- |
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235 // |
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236 TUint CSIPMessageParser::ParseResponseCodeL (const TDesC8& aResponseCode) |
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237 { |
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238 __ASSERT_ALWAYS (aResponseCode.Length() > 0, |
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239 User::Leave (KErrSipCodecResponseCode)); |
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240 |
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241 TLex8 lex(aResponseCode); |
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242 TUint chrCount=0; |
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243 lex.Mark(); |
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244 TChar chr = lex.Get(); |
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245 while (chr) |
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246 { |
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247 chrCount++; |
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248 chr = lex.Get(); |
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249 } |
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250 const TInt KCharactersInResponseCode = 3; |
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251 if (chrCount != KCharactersInResponseCode) |
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252 { |
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253 User::Leave (KErrSipCodecResponseCode); |
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254 } |
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255 lex.UnGetToMark(); |
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256 TUint value=0; |
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257 if (lex.Val(value) != KErrNone) |
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258 { |
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259 User::Leave (KErrSipCodecResponseCode); |
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260 } |
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261 return value; |
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262 } |