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1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #include <badesca.h> |
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21 #include <sipservertransaction.h> |
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22 #include <sipclienttransaction.h> |
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23 #include <sipstrings.h> |
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24 #include <sipstrconsts.h> |
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25 #include <sipmessageelements.h> |
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26 #include <siprequireheader.h> |
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27 #include "mcesipextensions.h" |
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28 #include "mcedictionary.h" |
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29 #include "mcesip.h" |
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30 #include "mcecomsession.h" |
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31 |
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32 // ----------------------------------------------------------------------------- |
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33 // CMceSipExtensions::CMceSipExtensions |
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34 // ----------------------------------------------------------------------------- |
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35 // |
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36 CMceSipExtensions* CMceSipExtensions::NewL() |
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37 { |
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38 CMceSipExtensions* self = new( ELeave ) CMceSipExtensions(); |
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39 CleanupStack::PushL( self ); |
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40 self->ConstructL(); |
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41 CleanupStack::Pop( self ); |
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42 return self; |
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43 } |
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44 |
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45 // ----------------------------------------------------------------------------- |
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46 // CMceSipExtensions::CMceSipExtensions |
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47 // ----------------------------------------------------------------------------- |
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48 // |
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49 CMceSipExtensions::CMceSipExtensions() |
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50 { |
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51 } |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // CMceSipExtensions::ConstructL |
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55 // ----------------------------------------------------------------------------- |
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56 // |
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57 void CMceSipExtensions::ConstructL() |
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58 { |
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59 iLocal = new( ELeave ) CMceDictionary(); |
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60 AddDefaultsL( *iLocal ); |
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61 iRemote = new( ELeave ) CMceDictionary(); |
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62 AddDefaultsL( *iRemote ); |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // CMceSipExtensions::~CMceSipExtensions |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 CMceSipExtensions::~CMceSipExtensions() |
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70 { |
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71 delete iLocal; |
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72 delete iRemote; |
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73 } |
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74 |
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75 // ----------------------------------------------------------------------------- |
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76 // CMceSipExtensions::Local |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 CMceSipExtensions::TLevel CMceSipExtensions::Local( TExtension aExtension ) |
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80 { |
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81 return Level( *iLocal, aExtension ); |
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82 } |
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83 |
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84 // ----------------------------------------------------------------------------- |
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85 // CMceSipExtensions::Remote |
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86 // ----------------------------------------------------------------------------- |
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87 // |
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88 CMceSipExtensions::TLevel CMceSipExtensions::Remote( TExtension aExtension ) |
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89 { |
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90 return Level( *iRemote, aExtension ); |
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91 } |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 // CMceSipExtensions::SetLocal |
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95 // ----------------------------------------------------------------------------- |
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96 // |
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97 void CMceSipExtensions::SetLocal( TExtension aExtension, TLevel aLevel ) |
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98 { |
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99 SetLevel( *iLocal, aExtension, aLevel ); |
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100 } |
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101 |
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102 // ----------------------------------------------------------------------------- |
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103 // CMceSipExtensions::SetRemote |
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104 // ----------------------------------------------------------------------------- |
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105 // |
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106 void CMceSipExtensions::SetRemote( TExtension aExtension, TLevel aLevel ) |
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107 { |
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108 SetLevel( *iRemote, aExtension, aLevel ); |
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109 } |
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110 |
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111 // ----------------------------------------------------------------------------- |
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112 // CMceSipExtensions::AddDefaultsL |
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113 // ----------------------------------------------------------------------------- |
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114 // |
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115 void CMceSipExtensions::AddDefaultsL( CMceDictionary& aDictionary ) |
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116 { |
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117 // Addin all the MCE extension headers Update, Subscribe, Prack, Refer, Notify |
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118 RArray< TExtension > extMethods; |
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119 CleanupClosePushL( extMethods ); |
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120 LocalSipExtensionsL( extMethods ); |
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121 |
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122 for (TInt index=0; index < extMethods.Count(); index++ ) |
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123 { |
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124 CMceDictionaryItem* extObj = |
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125 new( ELeave ) CMceKeyTValuePair<TLevel>( |
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126 static_cast<TInt>(extMethods[ index ]), ESupported ); |
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127 CleanupStack::PushL( extObj ); |
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128 aDictionary.AddL( extObj ); |
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129 CleanupStack::Pop( extObj ); |
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130 } |
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131 CleanupStack::PopAndDestroy( &extMethods ); |
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132 |
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133 // 100rel |
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134 CMceDictionaryItem* item100rel = |
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135 new( ELeave ) CMceKeyTValuePair<TLevel>( E100rel, ESupported ); |
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136 CleanupStack::PushL( item100rel ); |
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137 aDictionary.AddL( item100rel ); |
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138 CleanupStack::Pop( item100rel ); |
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139 |
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140 // QOS preconditions |
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141 CMceDictionaryItem* itemQosPreconds = |
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142 new( ELeave ) CMceKeyTValuePair<TLevel>( EQosPreconds, ESupported ); |
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143 CleanupStack::PushL( itemQosPreconds ); |
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144 aDictionary.AddL( itemQosPreconds ); |
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145 CleanupStack::Pop( itemQosPreconds ); |
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146 |
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147 //SEC precondition |
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148 CMceDictionaryItem* itemSecPreconds = |
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149 new( ELeave ) CMceKeyTValuePair<TLevel>( ESecPreconds, ESupported ); |
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150 CleanupStack::PushL( itemSecPreconds ); |
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151 aDictionary.AddL( itemSecPreconds ); |
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152 CleanupStack::Pop( itemSecPreconds ); |
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153 |
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154 } |
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155 |
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156 // ----------------------------------------------------------------------------- |
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157 // CMceSipExtensions::Level |
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158 // ----------------------------------------------------------------------------- |
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159 // |
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160 CMceSipExtensions::TLevel CMceSipExtensions::Level( |
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161 const CMceDictionary& aDictionary, |
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162 TExtension aExtension ) const |
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163 { |
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164 TLevel ret = ENotSupported; |
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165 CMceKeyTValuePair<TLevel>* pair = static_cast<CMceKeyTValuePair<TLevel>*> |
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166 ( aDictionary.Pair( aExtension ) ); |
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167 if ( pair ) |
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168 { |
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169 ret = pair->Value(); |
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170 } |
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171 return ret; |
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172 } |
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173 |
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174 // ----------------------------------------------------------------------------- |
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175 // CMceSipExtensions::SetLevel |
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176 // ----------------------------------------------------------------------------- |
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177 // |
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178 void CMceSipExtensions::SetLevel( CMceDictionary& aDictionary, |
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179 TExtension aExtension, |
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180 TLevel aLevel ) |
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181 { |
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182 CMceKeyTValuePair<TLevel>* pair = static_cast<CMceKeyTValuePair<TLevel>*> |
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183 ( aDictionary.Pair( aExtension ) ); |
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184 if ( pair ) |
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185 { |
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186 pair->SetValue( aLevel ); |
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187 } |
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188 } |
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189 |
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190 // ----------------------------------------------------------------------------- |
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191 // CMceSipExtensions::LevelL |
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192 // ----------------------------------------------------------------------------- |
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193 // |
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194 CMceSipExtensions::TLevel CMceSipExtensions::LevelL( |
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195 CSIPTransactionBase& aTransaction, |
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196 CMceSipExtensions::TExtension aExtension ) |
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197 { |
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198 CMceSipExtensions::TLevel level = CMceSipExtensions::ENotSupported; |
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199 TInt reqInd = SipStrConsts::ERequireHeader; |
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200 TInt suppInd = SipStrConsts::ESupportedHeader; |
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201 TInt allowInd = SipStrConsts::EAllowHeader; |
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202 |
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203 const CSIPMessageElements* elements = MceSip::ToMessageElements( aTransaction ); |
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204 if ( elements ) |
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205 { |
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206 switch ( aExtension ) |
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207 { |
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208 case CMceSipExtensions::E100rel: |
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209 { |
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210 if ( MceSip::HasHeaderValueL( *elements, reqInd, KMceSip100Rel ) ) |
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211 { |
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212 level = CMceSipExtensions::ERequired; |
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213 } |
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214 else if ( MceSip::HasHeaderValueL( *elements, |
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215 suppInd, |
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216 KMceSip100Rel ) ) |
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217 { |
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218 level = CMceSipExtensions::ESupported; |
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219 } |
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220 else |
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221 { |
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222 // NOP |
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223 } |
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224 break; |
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225 } |
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226 case CMceSipExtensions::EQosPreconds: |
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227 case CMceSipExtensions::ESecPreconds: |
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228 { |
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229 if ( MceSip::HasHeaderValueL( *elements, reqInd, KMceSipPrecondition ) ) |
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230 { |
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231 level = CMceSipExtensions::ERequired; |
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232 } |
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233 else if ( MceSip::HasHeaderValueL( *elements, |
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234 suppInd, |
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235 KMceSipPrecondition ) ) |
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236 { |
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237 level = CMceSipExtensions::ESupported; |
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238 } |
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239 else |
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240 { |
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241 // NOP |
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242 } |
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243 break; |
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244 } |
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245 case CMceSipExtensions::EUpdate: |
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246 { |
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247 if ( MceSip::HasHeaderValueL( *elements, allowInd, |
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248 SIPStrings::StringF( SipStrConsts::EUpdate ).DesC() ) ) |
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249 { |
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250 level = CMceSipExtensions::ESupported; |
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251 } |
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252 break; |
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253 } |
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254 case CMceSipExtensions::ESubscribe: |
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255 { |
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256 if ( MceSip::HasHeaderValueL( *elements, allowInd, |
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257 SIPStrings::StringF( SipStrConsts::ESubscribe ).DesC() ) ) |
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258 { |
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259 level = CMceSipExtensions::ESupported; |
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260 } |
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261 break; |
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262 } |
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263 case CMceSipExtensions::ERefer: |
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264 { |
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265 if ( MceSip::HasHeaderValueL( *elements, allowInd, |
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266 SIPStrings::StringF( SipStrConsts::ERefer ).DesC() ) ) |
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267 { |
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268 level = CMceSipExtensions::ESupported; |
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269 } |
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270 break; |
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271 } |
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272 case CMceSipExtensions::ENotify: |
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273 { |
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274 if ( MceSip::HasHeaderValueL( *elements, allowInd, |
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275 SIPStrings::StringF( SipStrConsts::ENotify ).DesC() ) ) |
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276 { |
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277 level = CMceSipExtensions::ESupported; |
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278 } |
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279 break; |
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280 } |
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281 case CMceSipExtensions::EPrack: |
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282 { |
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283 if ( MceSip::HasHeaderValueL( *elements, allowInd, |
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284 SIPStrings::StringF( SipStrConsts::EPrack ).DesC() ) ) |
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285 { |
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286 level = CMceSipExtensions::ESupported; |
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287 } |
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288 break; |
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289 } |
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290 default: |
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291 { |
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292 // NOP |
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293 break; |
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294 } |
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295 } |
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296 } |
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297 return level; |
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298 } |
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299 |
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300 // ----------------------------------------------------------------------------- |
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301 // CMceSipExtensions::UpdateL |
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302 // ----------------------------------------------------------------------------- |
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303 // |
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304 void CMceSipExtensions::UpdateL( CSIPServerTransaction& aTransaction ) |
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305 { |
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306 const CSIPMessageElements* msg = MceSip::ToMessageElements( aTransaction ); |
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307 User::LeaveIfError( msg ? KErrNone : KErrArgument ); |
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308 |
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309 // Get the values before updating anything. If a leave happens, the |
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310 // values remain not modified. |
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311 TLevel remote100rel = LevelL( aTransaction, CMceSipExtensions::E100rel ); |
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312 |
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313 TLevel remoteQosPrecond = LevelL( aTransaction, |
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314 CMceSipExtensions::EQosPreconds ); |
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315 TLevel remoteSecPrecond = LevelL( aTransaction, |
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316 CMceSipExtensions::ESecPreconds ); |
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317 |
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318 // Check if the local valus will be modified |
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319 TLevel local100rel = Local( CMceSipExtensions::E100rel ); |
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320 if ( remote100rel == CMceSipExtensions::ERequired ) |
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321 { |
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322 if ( local100rel == CMceSipExtensions::ENotSupported ) |
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323 { |
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324 User::Leave( KErrNotSupported ); |
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325 } |
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326 else |
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327 { |
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328 local100rel = remote100rel; |
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329 } |
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330 } |
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331 |
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332 TLevel localQosPrecond = Local( CMceSipExtensions::EQosPreconds ); |
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333 if ( remoteQosPrecond == CMceSipExtensions::ERequired ) |
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334 { |
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335 if ( localQosPrecond == CMceSipExtensions::ENotSupported ) |
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336 { |
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337 User::Leave( KErrNotSupported ); |
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338 } |
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339 else |
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340 { |
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341 localQosPrecond = remoteQosPrecond; |
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342 } |
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343 } |
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344 |
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345 TLevel localSecPrecond = Local( CMceSipExtensions::ESecPreconds ); |
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346 if ( remoteSecPrecond == CMceSipExtensions::ERequired ) |
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347 { |
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348 if ( localSecPrecond == CMceSipExtensions::ENotSupported && |
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349 localQosPrecond == CMceSipExtensions::ENotSupported ) |
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350 { |
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351 User::Leave( KErrNotSupported ); |
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352 } |
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353 else |
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354 { |
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355 localSecPrecond = remoteSecPrecond; |
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356 } |
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357 } |
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358 |
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359 // Finally set the values, first local |
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360 // 100rel |
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361 SetLocal( CMceSipExtensions::E100rel, local100rel ); |
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362 |
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363 // precond |
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364 SetLocal( CMceSipExtensions::EQosPreconds, localQosPrecond ); |
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365 |
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366 // sec precond |
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367 SetLocal( CMceSipExtensions::ESecPreconds, localSecPrecond ); |
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368 |
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369 // then remote |
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370 // 100rel |
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371 SetRemote( CMceSipExtensions::E100rel, remote100rel ); |
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372 |
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373 // precond |
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374 SetRemote( CMceSipExtensions::EQosPreconds, remoteQosPrecond ); |
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375 |
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376 //sec precond |
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377 SetRemote( CMceSipExtensions::ESecPreconds, remoteSecPrecond ); |
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378 |
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379 // MCE sipextension allow header : UPDATE, PRACk, Subscribe, REfer, Notify |
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380 |
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381 SetExtensionAllowHeadersL( msg ); |
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382 } |
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383 |
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384 // ----------------------------------------------------------------------------- |
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385 // CMceSipExtensions::UpdateL |
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386 // ----------------------------------------------------------------------------- |
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387 // |
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388 void CMceSipExtensions::UpdateL( CSIPClientTransaction& aTransaction ) |
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389 { |
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390 const CSIPMessageElements* msg = MceSip::ToMessageElements( aTransaction ); |
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391 User::LeaveIfError( msg ? KErrNone : KErrArgument ); |
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392 |
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393 if ( MceSip::ResponseCode( aTransaction ) == KMceSipExtensionRequired ) |
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394 { |
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395 TBool reqPreconds = MceSip::HasHeaderValueL( |
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396 *msg, |
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397 SipStrConsts::ERequireHeader, |
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398 KMceSipPrecondition ); |
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399 if ( reqPreconds ) |
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400 { |
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401 // needs to require preconditions locally, if possible |
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402 if ( Local( CMceSipExtensions::EQosPreconds ) != |
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403 CMceSipExtensions::ENotSupported ) |
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404 { |
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405 SetLocal( CMceSipExtensions::EQosPreconds, |
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406 CMceSipExtensions::ERequired ); |
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407 } |
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408 else if (Local( CMceSipExtensions::ESecPreconds ) != |
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409 CMceSipExtensions::ENotSupported && |
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410 Local( CMceSipExtensions::EQosPreconds ) == |
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411 CMceSipExtensions::ENotSupported ) |
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412 { |
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413 SetLocal( CMceSipExtensions::ESecPreconds, |
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414 CMceSipExtensions::ERequired ); |
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415 } |
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416 else |
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417 { |
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418 User::Leave( KErrNotSupported ); |
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419 } |
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420 } |
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421 else |
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422 { |
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423 // "Require: precondition" is the only extension required in 421 response |
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424 // that may lead to a retried INVITE. |
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425 // All the other required extensions to the initial INVITE terminate the |
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426 // session. |
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427 User::Leave( KErrNotSupported ); |
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428 } |
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429 } |
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430 else if ( MceSip::ResponseType( aTransaction ) == E1XX || |
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431 MceSip::ResponseType( aTransaction ) == E2XX ) |
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432 { |
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433 if ( MceSip::ResponseType( aTransaction ) == E1XX && |
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434 Local( CMceSipExtensions::E100rel ) == |
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435 CMceSipExtensions::ERequired ) |
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436 { |
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437 // use of 100rel extension is required locally, |
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438 // check, that provisional response is sent reliably |
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439 TBool req100Rel = MceSip::HasHeaderValueL( |
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440 *msg, |
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441 SipStrConsts::ERequireHeader, |
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442 KMceSip100Rel ); |
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443 User::LeaveIfError( req100Rel ? KErrNone : KErrNotSupported ); |
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444 } |
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445 |
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446 SetExtensionAllowHeadersL( msg ); |
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447 } |
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448 else |
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449 { |
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450 // NOP |
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451 } |
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452 } |
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453 |
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454 // ----------------------------------------------------------------------------- |
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455 // CMceSipExtensions::Update |
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456 // ----------------------------------------------------------------------------- |
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457 // |
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458 void CMceSipExtensions::Update( CMceComSession& aBody ) |
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459 { |
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460 for ( TInt i = 0; i< aBody.iSessionModifiers.Count(); i++ ) |
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461 { |
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462 Update( i, aBody.Modifier( i ) ); |
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463 } |
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464 } |
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465 |
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466 // ----------------------------------------------------------------------------- |
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467 // CMceSipExtensions::Update |
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468 // ----------------------------------------------------------------------------- |
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469 // |
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470 void CMceSipExtensions::Update( TMceSessionModifier aModifier, TUint aValue ) |
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471 { |
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472 TInt extension = KErrNotFound; |
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473 TInt level = KErrNotFound; |
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474 |
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475 switch ( aModifier ) |
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476 { |
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477 case KMcePreconditions: |
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478 { |
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479 extension = CMceSipExtensions::EQosPreconds; |
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480 if ( aValue == KMcePreconditionsNotUsed ) |
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481 { |
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482 level = CMceSipExtensions::ENotSupported; |
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483 } |
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484 else if ( aValue == KMcePreconditionsSupported ) |
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485 { |
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486 level = CMceSipExtensions::ESupported; |
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487 } |
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488 else |
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489 { |
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490 // NOP |
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491 } |
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492 break; |
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493 } |
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494 case KMceSecPreconditions: |
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495 { |
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496 extension = CMceSipExtensions::ESecPreconds; |
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497 if ( aValue == KMcePreconditionsNotUsed ) |
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498 { |
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499 level = CMceSipExtensions::ENotSupported; |
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500 } |
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501 else if ( aValue == KMcePreconditionsE2ESupported ) |
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502 { |
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503 level = CMceSipExtensions::ESupported; |
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504 } |
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505 else |
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506 { |
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507 // NOP |
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508 } |
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509 break; |
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510 } |
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511 case KMce100Rel: |
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512 { |
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513 extension = CMceSipExtensions::E100rel; |
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514 if ( aValue == KMce100RelNotUsed ) |
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515 { |
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516 level = CMceSipExtensions::ENotSupported; |
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517 } |
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518 else if ( aValue == KMce100RelSupported ) |
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519 { |
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520 level = CMceSipExtensions::ESupported; |
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521 } |
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522 else if ( aValue == KMce100RelRequired ) |
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523 { |
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524 level = CMceSipExtensions::ERequired; |
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525 } |
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526 else |
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527 { |
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528 // NOP |
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529 } |
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530 break; |
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531 } |
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532 default: |
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533 { |
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534 // NOP |
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535 break; |
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536 } |
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537 } |
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538 if ( extension != KErrNotFound && level != KErrNotFound ) |
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539 { |
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540 SetLocal( ( CMceSipExtensions::TExtension ) ( extension ), |
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541 ( CMceSipExtensions::TLevel ) ( level ) ); |
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542 } |
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543 } |
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544 // ----------------------------------------------------------------------------- |
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545 // CMceSipExtensions::RemoteIMSRel5 |
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546 // ----------------------------------------------------------------------------- |
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547 // |
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548 TBool CMceSipExtensions::RemoteIMSRel5() |
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549 { |
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550 CMceSipExtensions::TLevel localQos = |
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551 Local( CMceSipExtensions::EQosPreconds ); |
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552 |
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553 return ( localQos == CMceSipExtensions::ERequired ); |
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554 } |
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555 |
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556 // ----------------------------------------------------------------------------- |
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557 // CMceSipExtensions::ExtensionAllowMethods |
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558 // ----------------------------------------------------------------------------- |
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559 // |
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560 void CMceSipExtensions::ExtensionAllowMethodsL( RArray<TInt>& aArray ) |
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561 { |
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562 User::LeaveIfError( aArray.Append( SipStrConsts::EUpdate )); |
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563 User::LeaveIfError( aArray.Append( SipStrConsts::EPrack )); |
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564 User::LeaveIfError( aArray.Append( SipStrConsts::ESubscribe )); |
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565 User::LeaveIfError( aArray.Append( SipStrConsts::ERefer )); |
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566 User::LeaveIfError( aArray.Append( SipStrConsts::ENotify )); |
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567 } |
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568 |
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569 // ----------------------------------------------------------------------------- |
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570 // CMceSipExtensions::LocalSipExtensions |
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571 // ----------------------------------------------------------------------------- |
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572 // |
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573 void CMceSipExtensions::LocalSipExtensionsL( RArray<TExtension>& aArray ) |
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574 { |
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575 User::LeaveIfError( aArray.Append( CMceSipExtensions::EUpdate )); |
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576 User::LeaveIfError( aArray.Append( CMceSipExtensions::EPrack )); |
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577 User::LeaveIfError( aArray.Append( CMceSipExtensions::ESubscribe )); |
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578 User::LeaveIfError( aArray.Append( CMceSipExtensions::ERefer )); |
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579 User::LeaveIfError( aArray.Append( CMceSipExtensions::ENotify )); |
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580 } |
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581 |
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582 // ----------------------------------------------------------------------------- |
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583 // CMceSipExtensions::SetExtensionAllowHeaders |
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584 // ----------------------------------------------------------------------------- |
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585 // |
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586 void CMceSipExtensions::SetExtensionAllowHeadersL( const CSIPMessageElements* aMessage ) |
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587 { |
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588 RArray< TExtension > localExts; |
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589 CleanupClosePushL( localExts ); |
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590 RArray< TInt> extMethods; |
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591 CleanupClosePushL( extMethods ); |
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592 TInt index = 0; |
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593 LocalSipExtensionsL( localExts ); |
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594 ExtensionAllowMethodsL( extMethods ); |
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595 |
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596 for ( index=0; index < extMethods.Count(); index++ ) |
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597 { |
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598 |
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599 TBool extMethod = MceSip::HasHeaderValueL( |
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600 *aMessage, |
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601 SipStrConsts::EAllowHeader, |
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602 SIPStrings::StringF( extMethods[index] ).DesC() ); |
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603 |
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604 SetRemote( localExts[ index ], extMethod ? |
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605 ESupported : ENotSupported ); |
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606 } |
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607 CleanupStack::PopAndDestroy( &extMethods ); |
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608 CleanupStack::PopAndDestroy( &localExts ); |
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609 } |
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610 // End of file |