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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 |
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21 #include <sipdialogassocbase.h> |
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22 #include <sipdialog.h> |
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23 #include <sipclienttransaction.h> |
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24 #include <sipresponseelements.h> |
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25 #include <sipcseqheader.h> |
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26 #include "mcestateoffering.h" |
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27 #include "mcesipsession.h" |
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28 #include "mcesipextensions.h" |
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29 #include "mceactionset.h" |
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30 #include "mcefcactionset.h" |
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31 #include "mceclientserver.h" |
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32 #include "mcesip.h" |
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33 #include "mcesipsession.h" |
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34 #include "mcenatmacros.h" |
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35 #include "mcesdpsession.h" |
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36 #include "mcesrvlogs.h" |
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37 |
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38 // ----------------------------------------------------------------------------- |
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39 // CMceStateOffering::CMceStateOffering |
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40 // ----------------------------------------------------------------------------- |
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41 // |
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42 CMceStateOffering::CMceStateOffering () |
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43 : CMceState( KMceStateOffering ) |
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44 { |
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45 } |
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46 |
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47 |
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48 // ----------------------------------------------------------------------------- |
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49 // CMceStateOffering::~CMceStateOffering |
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50 // ----------------------------------------------------------------------------- |
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51 // |
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52 CMceStateOffering::~CMceStateOffering() |
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53 { |
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54 } |
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55 |
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56 |
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57 // ----------------------------------------------------------------------------- |
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58 // CMceStateOffering::DoAcceptL |
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59 // ----------------------------------------------------------------------------- |
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60 // |
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61 TBool CMceStateOffering::DoAcceptL( TMceStateTransitionEvent& aEvent ) |
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62 { |
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63 |
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64 User::LeaveIfError( |
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65 aEvent.Code() == EMceUpdate || |
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66 aEvent.Code() == EMceResponse || |
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67 aEvent.Code() == EMceProvisionalResponse || |
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68 aEvent.Code() == EMceRedirectionResponse || |
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69 aEvent.Code() == EMceErrorResponse || |
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70 aEvent.Code() == EMceMediaUpdated || |
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71 aEvent.Code() == EMceItcCancel || |
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72 aEvent.Code() == EMceBye || |
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73 aEvent.Code() == EMceItcEnable || |
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74 aEvent.Code() == EMceItcDisable || |
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75 IsExtensionRequestEvent( aEvent ) |
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76 |
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77 ? KErrNone : KErrTotalLossOfPrecision ); |
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78 |
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79 return ETrue; |
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80 |
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81 } |
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82 |
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83 // ----------------------------------------------------------------------------- |
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84 // CMceStateOffering::EntryL |
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85 // ----------------------------------------------------------------------------- |
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86 // |
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87 void CMceStateOffering::EntryL( TMceStateTransitionEvent& aEvent ) |
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88 { |
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89 |
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90 if ( IsExtensionRequestEvent( aEvent )) |
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91 { |
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92 HandleExtensionRequestEventL( aEvent ); |
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93 } |
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94 |
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95 else |
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96 { |
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97 switch( aEvent.Code() ) |
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98 { |
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99 case EMceUpdate: |
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100 { |
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101 EntryUpdateL( aEvent ); |
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102 break; |
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103 } |
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104 case EMceProvisionalResponse: |
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105 { |
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106 EntryProvisionalResponseL( aEvent ); |
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107 break; |
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108 } |
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109 //200 OK |
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110 case EMceResponse: |
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111 { |
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112 EntryResponseL( aEvent ); |
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113 break; |
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114 } |
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115 //error |
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116 case EMceRedirectionResponse: |
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117 { |
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118 EntryRedirectionResponseL( aEvent ); |
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119 break; |
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120 } |
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121 case EMceErrorResponse: |
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122 { |
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123 EntryErrorResponseL( aEvent ); |
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124 break; |
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125 } |
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126 //if client cancels, send CANCEL |
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127 case EMceItcCancel: |
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128 { |
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129 EntryCancelL( aEvent ); |
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130 break; |
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131 } |
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132 case EMceMediaUpdated: |
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133 { |
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134 CMceSipSession& session = aEvent.Session(); |
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135 CSIPServerTransaction* update = &session.Request(); |
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136 |
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137 if ( update && update->Type() == |
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138 SIPStrings::StringF( SipStrConsts::EUpdate ) ) |
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139 { |
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140 EntryMediaUpdatedL( aEvent ); |
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141 } |
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142 else |
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143 { |
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144 if ( aEvent.Session().SubState() == CMceSipSession::EUpdating ) |
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145 { |
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146 EntryAnswerToUpdateDecodedL( aEvent ); |
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147 } |
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148 else |
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149 { |
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150 EntryAnswerToOfferDecodedL( aEvent ); |
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151 } |
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152 } |
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153 break; |
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154 } |
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155 |
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156 case EMceItcEnable: |
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157 case EMceItcDisable: |
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158 { |
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159 aEvent.Session().Actions().ControlMediaL( aEvent.ParamIDs(), |
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160 (TMceItcFunctions)aEvent.Code() ); |
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161 break; |
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162 } |
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163 case EMceBye: |
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164 { |
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165 EntryByeL( aEvent ); |
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166 break; |
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167 } |
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168 default: |
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169 { |
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170 //NOP |
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171 break; |
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172 } |
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173 } |
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174 } |
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175 } |
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176 |
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177 // ----------------------------------------------------------------------------- |
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178 // CMceStateOffering::EntryUpdateL |
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179 // ----------------------------------------------------------------------------- |
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180 // |
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181 void CMceStateOffering::EntryUpdateL( TMceStateTransitionEvent& aEvent ) |
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182 { |
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183 CMceSipSession& session = aEvent.Session(); |
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184 if ( MceSip::HasContent( session.Request() ) ) |
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185 { |
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186 // UPDATE carries SDP |
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187 User::LeaveIfError( session.Actions().CreateSDP( session.Request() ) ); |
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188 |
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189 session.Actions().DecodeL(); |
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190 TMceReturnStatus status = session.Actions().UpdateL(); |
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191 aEvent.ParamStatus() = status; |
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192 if ( MCE_IS_ERROR( status ) ) |
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193 { |
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194 // TBD: update failed, reject |
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195 } |
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196 else if ( status == KMceAsync ) |
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197 { |
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198 // NOP |
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199 } |
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200 else // ready |
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201 { |
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202 aEvent.Code() = EMceMediaUpdated; |
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203 EntryMediaUpdatedL( aEvent ); |
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204 } |
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205 } |
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206 else |
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207 { |
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208 // TBD: handle UPDATE without content |
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209 } |
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210 |
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211 } |
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212 |
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213 // ----------------------------------------------------------------------------- |
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214 // CMceStateOffering::EntryProvisionalResponseL |
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215 // ----------------------------------------------------------------------------- |
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216 // |
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217 void CMceStateOffering::EntryMediaUpdatedL( TMceStateTransitionEvent& aEvent ) |
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218 { |
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219 CMceSipSession& session = aEvent.Session(); |
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220 |
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221 TMceReturnStatus status = session.Actions().ReserveL(); |
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222 aEvent.ParamStatus() = status; |
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223 if ( MCE_IS_ERROR( status )) |
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224 { |
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225 // TBD: reservation failed |
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226 } |
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227 else |
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228 if (status == KMceAsync) |
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229 { |
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230 // NOP |
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231 } |
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232 else // ready, send 2xx to update |
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233 { |
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234 CSIPServerTransaction* update= NULL; |
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235 RStringF trx = session.Request().Type(); |
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236 if (trx == SIPStrings::StringF(SipStrConsts::EUpdate) ) |
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237 { |
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238 update = &session.Request(); |
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239 } |
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240 |
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241 if (update) |
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242 { |
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243 session.Actions().EncodeL(); |
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244 session.FCActions().UpdateFCAnswerL( *session.Offer() ); |
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245 session.Actions().SendAnswerL( *update); |
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246 } |
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247 else |
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248 { |
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249 User::Leave(KErrTotalLossOfPrecision); |
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250 } |
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251 } |
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252 } |
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253 |
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254 // ----------------------------------------------------------------------------- |
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255 // CMceStateOffering::EntryProvisionalResponseL |
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256 // ----------------------------------------------------------------------------- |
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257 // |
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258 void CMceStateOffering::EntryProvisionalResponseL( |
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259 TMceStateTransitionEvent& aEvent ) |
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260 { |
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261 TInt status = KErrNone; |
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262 CMceSipSession& session = aEvent.Session(); |
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263 CSIPClientTransaction& response = session.Response(); |
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264 |
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265 session.Extensions().UpdateL( response ); |
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266 session.Actions().CheckContactIsSecureL( response ); |
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267 |
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268 session.ActiveBody().AnswerType() = KMceNegotiationAnswerTypeIntermediate; |
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269 |
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270 TBool IsFork = EFalse; |
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271 if ( MceSip::ResponseCode( session.Response() ) == KMceSipSessionProgress && |
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272 session.ForkedDialogsCount() ) |
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273 { |
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274 IsFork = ETrue; |
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275 } |
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276 if ( session.Actions().NeedToProcessL( aEvent ) || IsFork ) |
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277 { |
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278 if ( MCE_NEED_TO_SEND( session, NULL ) || IsFork ) |
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279 { |
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280 if ( MceSip::HasContent( response ) ) |
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281 { |
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282 // create SDP answer |
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283 //status = session.Actions().CreateSDP( response ); |
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284 NAT_WAIT_NO_EXEC( session, (status = session.Actions().CreateSDP( response ))); |
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285 |
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286 // handle SDP content |
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287 if ( !MCE_IS_ERROR( status ) ) |
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288 { |
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289 // process session timer |
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290 session.Actions().ProcessSessionTimerClientL( response ); |
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291 // update FC |
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292 session.FCActions().PeekFCDocumentL( *session.Offer() ); |
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293 |
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294 //decode answer, ignore warning code |
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295 if ( session.ActiveBody().SecureSession()) |
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296 { |
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297 session.ActiveBody().SecureSession()->iLSReadyToBind = EFalse; |
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298 } |
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299 session.Actions().DecodeL(); |
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300 |
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301 |
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302 // update media |
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303 status = session.Actions().UpdateL(); |
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304 } |
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305 } |
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306 |
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307 //if there was an error |
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308 if ( MCE_IS_ERROR( status ) ) |
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309 { |
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310 EntryCancelL( aEvent ); |
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311 //transition exit is performed here |
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312 session.Actions().StateChanged( KMceStateCanceled ); |
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313 session.Actions().ClientStateChangedL( CMceSession::ECancelling, |
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314 aEvent.ParamStatus() ); |
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315 } |
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316 else if ( status == KMceAsync ) |
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317 { |
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318 aEvent.Session().SetWaitingMediaCallback( ETrue ); |
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319 } |
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320 else // KMceReady |
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321 { |
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322 EntryAnswerToOfferDecodedL( aEvent ); |
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323 } |
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324 } |
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325 else |
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326 { |
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327 EntryAnswerToOfferDecodedL( aEvent ); |
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328 } |
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329 } |
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330 aEvent.ParamStatus() = status; |
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331 } |
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332 |
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333 // ----------------------------------------------------------------------------- |
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334 // CMceStateOffering::EntryRedirectionResponseL |
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335 // ----------------------------------------------------------------------------- |
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336 // |
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337 void CMceStateOffering::EntryRedirectionResponseL( |
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338 TMceStateTransitionEvent& aEvent ) |
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339 { |
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340 MCESRV_DEBUG("CMceStateOffering::EntryRedirectionResponseL, Entry"); |
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341 |
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342 CMceSipSession& session = aEvent.Session(); |
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343 |
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344 session.ResetSdpCounts(); |
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345 |
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346 switch ( MceSip::ResponseCode( session.Response() ) ) |
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347 { |
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348 case KMceSipMovedTemporarily: |
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349 { |
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350 // any 3xx response for updating will be handled as |
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351 // a error situation |
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352 if ( session.SubState() != CMceSipSession::EUpdating ) |
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353 { |
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354 // get remoteUri information from response |
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355 session.AddRemoteUriFromResponseL( |
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356 *const_cast<CSIPResponseElements*>(session.Response().ResponseElements()) ); |
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357 // create a new inviteAssociationDialog |
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358 session.CreateDialogFrom3XXResponseL(); |
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359 // send the invite again |
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360 session.Actions().SendInviteL(); |
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361 } |
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362 break; |
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363 } |
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364 // include KMceSipUseProxy, KMceSipAlternativeService, |
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365 // KMceSipMultipleChoices, KMceSipMovedPermanently |
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366 default: |
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367 { |
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368 // error situation |
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369 break; |
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370 } |
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371 } |
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372 |
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373 MCESRV_DEBUG("CMceStateOffering::EntryRedirectionResponseL, Exit"); |
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374 } |
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375 |
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376 // ----------------------------------------------------------------------------- |
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377 // CMceStateOffering::ExitRedirectionEventL |
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378 // ----------------------------------------------------------------------------- |
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379 // |
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380 void CMceStateOffering::ExitRedirectionEventL( |
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381 TMceStateTransitionEvent& aEvent ) |
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382 { |
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383 MCESRV_DEBUG("CMceStateOffering::RedirectionErrorResponseL, Entry"); |
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384 |
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385 CMceSipSession& session = aEvent.Session(); |
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386 CMceSipSession::TSubState subState = session.SubState(); |
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387 TUint responseCode = MceSip::ResponseCode( session.Response() ); |
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388 |
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389 if ( subState == CMceSipSession::EOffering ) |
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390 { |
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391 if ( responseCode == KMceSipMovedTemporarily ) |
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392 { |
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393 session.Actions().ClientStateChangedL( |
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394 CMceSession::EOffering, *session.Body(), session.Response() ); |
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395 } |
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396 else |
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397 { |
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398 session.Actions().StopMedia(); |
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399 session.FCActions().ReleaseFC(); |
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400 session.Actions().StateChanged( KMceStateTerminated ); |
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401 session.Actions().ClientStateChangedL( |
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402 CMceSession::ETerminated, *session.Body(), session.Response() ); |
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403 } |
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404 } |
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405 else if ( session.SubState() == CMceSipSession::EUpdating ) |
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406 { |
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407 session.Actions().StopUpdatingMedia(); |
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408 session.Actions().UpdateFailed(); |
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409 session.Actions().StateChanged( CMceSession::EEstablished ); |
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410 session.Actions().ClientStateChangedL( |
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411 CMceSession::EEstablished, *session.Body(), |
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412 session.Response(), KErrGeneral ); |
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413 } |
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414 else |
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415 { |
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416 // do nothing |
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417 } |
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418 |
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419 MCESRV_DEBUG("CMceStateOffering::RedirectionErrorResponseL, Exit"); |
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420 } |
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421 |
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422 // ----------------------------------------------------------------------------- |
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423 // CMceStateOffering::EntryResponseL |
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424 // ----------------------------------------------------------------------------- |
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425 // |
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426 void CMceStateOffering::EntryResponseL( TMceStateTransitionEvent& aEvent ) |
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427 { |
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428 TInt status = KErrNone; |
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429 CMceSipSession& session = aEvent.Session(); |
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430 CMceSipSession::TSubState subState = session.SubState(); |
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431 |
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432 //send ACK |
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433 session.Actions().SendACKL( session.Response() ); |
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434 session.Actions().CheckContactIsSecureL( session.Response() ); |
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435 session.ActiveBody().AnswerType() = KMceNegotiationAnswerTypeFinal; |
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436 |
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437 // Handle the answer only if the media processing is not |
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438 // already ongoing |
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439 if ( !session.WaitingMediaCallback() ) |
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440 { |
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441 if ( MceSip::HasContent( session.Response() ) ) |
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442 { |
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443 //process session timer |
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444 session.Actions().ProcessSessionTimerClientL( session.Response() ); |
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445 |
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446 if ( subState != CMceSipSession::ERefreshing ) |
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447 { |
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448 //create SDP answer |
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449 NAT_WAIT_NO_EXEC( session, (status = session.Actions().CreateSDP( session.Response() ) )); |
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450 |
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451 if ( !MCE_IS_ERROR( status ) ) |
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452 { |
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453 //update FC |
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454 session.FCActions().PeekFCDocumentL( *session.Offer() ); |
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455 |
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456 //decode answer, ignore warning code |
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457 if ( session.ActiveBody().SecureSession()) |
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458 { |
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459 session.ActiveBody().SecureSession()->iLSReadyToBind = ETrue; |
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460 } |
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461 status = session.Actions().Decode(); |
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462 |
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463 // update media and start waiting EMceMediaUpdated (if needed) |
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464 if ( !MCE_IS_ERROR( status ) ) |
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465 { |
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466 status = session.Actions().UpdateL(); |
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467 //if everything OK, starts floor control |
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468 if ( !MCE_IS_ERROR( status ) ) |
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469 { |
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470 //check should wait EMceMediaUpdated |
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471 aEvent.Code() = status == KMceReady ? |
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472 EMceMediaUpdated : EMceResponse; |
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473 if ( subState == CMceSipSession::EOffering ) |
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474 { |
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475 // start floor control only for the initial INVITE |
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476 session.FCActions().StartFCL(); |
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477 } |
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478 } |
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479 } |
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480 } |
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481 } |
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482 } |
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483 else // no content |
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484 { |
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485 if ( !MCE_NEED_TO_RECEIVE( session ) ) |
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486 { |
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487 status = session.Actions().UpdateL(); |
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488 // SDP answer was received before |
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489 // go to established state |
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490 session.Actions().StateChanged( KMceStateEstablished ); |
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491 //session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
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492 // session.Response() ); |
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493 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
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494 *session.Body(), |
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495 session.Response(), |
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496 status ); |
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497 } |
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498 else |
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499 { |
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500 // SDP answer is not received |
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501 User::Leave( KErrNotReady ); |
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502 } |
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503 } |
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504 |
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505 aEvent.ParamStatus() = status; |
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506 |
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507 //if there was an error |
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508 if ( MCE_IS_ERROR( status ) ) |
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509 { |
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510 //if first invite |
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511 if ( subState == CMceSipSession::EOffering ) |
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512 { |
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513 //send BYE and stop media |
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514 session.Actions().SendBYEL(); |
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515 session.Actions().StopMedia(); |
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516 } |
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517 //if updating |
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518 else if ( subState == CMceSipSession::EUpdating ) |
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519 { |
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520 //do rollback |
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521 session.Actions().UpdateFailed(); |
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522 if ( session.Body() && &session.Body()->SdpSession() && |
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523 session.Body()->SdpSession().iOOldSchoolCompleted ) |
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524 { |
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525 session.Actions().ClientStateChangedL( |
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526 CMceSession::EEstablished, *( session.Body() ), status ); |
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527 } |
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528 } |
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529 else |
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530 { |
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531 //NOP |
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532 } |
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533 } |
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534 else if ( status == KMceAsync ) |
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535 { |
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536 // set session waiting for media callback |
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537 aEvent.Session().SetWaitingMediaCallback( ETrue ); |
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538 } |
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539 else if ( status == KMceReady && subState == CMceSipSession::EUpdating ) |
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540 { |
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541 session.Actions().UpdateSucceed(); |
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542 } |
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543 else |
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544 { |
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545 // NOP |
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546 } |
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547 } |
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548 } |
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549 |
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550 |
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551 // ----------------------------------------------------------------------------- |
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552 // CMceStateOffering::EntryErrorResponseL |
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553 // ----------------------------------------------------------------------------- |
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554 // |
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555 void CMceStateOffering::EntryErrorResponseL( TMceStateTransitionEvent& aEvent ) |
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556 { |
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557 CMceSipSession& session = aEvent.Session(); |
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558 |
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559 session.ResetSdpCounts(); |
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560 |
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561 CMceSipSession::TSubState subState = session.SubState(); |
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562 |
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563 TUint code = MceSip::ResponseCode( session.Response() ); |
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564 TInt errorCode = KErrNone; |
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565 |
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566 if ( code == KMceSipSessionIntervalTooSmall ) |
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567 { |
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568 if ( session.Dialog()->Dialog().State() == CSIPDialog::EConfirmed ) |
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569 { |
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570 //sending re-INVITE after 422 for re-INVITE |
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571 session.Actions().ProcessSessionTimerClientL( session.Response() ); |
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572 //send again |
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573 session.Actions().SendSessionRefreshL(); |
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574 } |
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575 |
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576 else if ( session.Dialog()->Dialog().State() == CSIPDialog::ETerminated ) |
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577 { |
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578 //sending re-INVITE after 422 for INVITE |
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579 errorCode = session.ReUseDialog(); |
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580 if ( errorCode == KErrNone ) |
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581 { |
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582 session.Actions().ProcessSessionTimerClientL( session.Response() ); |
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583 session.Actions().SendInviteL(); |
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584 } |
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585 } |
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586 } |
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587 else if ( code == KMceSipExtensionRequired ) |
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588 { |
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589 session.Extensions().UpdateL( session.Response() ); |
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590 session.ReCreateOutgoingDialogL(); |
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591 session.Actions().SendInviteL(); |
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592 } |
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593 //if first invite, stop media and FC |
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594 else if ( subState == CMceSipSession::EOffering ) |
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595 { |
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596 session.Actions().StopMedia(); |
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597 session.FCActions().ReleaseFC(); |
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598 } |
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599 //if update, reject update |
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600 else if ( subState == CMceSipSession::EUpdating || |
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601 subState == CMceSipSession::ERefreshing ) |
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602 { |
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603 if ( code == KMceSipCallOrTransactionDoesNotExist || |
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604 code == KMceSipRequestTimeout ) |
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605 { |
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606 session.Actions().UpdateFailed(); |
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607 session.Actions().SendBYEL(); |
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608 session.Actions().StopMedia(); |
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609 session.FCActions().ReleaseFC(); |
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610 session.Actions().StateChanged( KMceStateTerminated ); |
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611 session.Actions().ClientStateChangedL( CMceSession::ETerminated, |
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612 session.Response() ); |
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613 } |
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614 else |
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615 { |
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616 session.Actions().UpdateFailed(); |
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617 session.Actions().StateChanged( KMceStateEstablished ); |
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618 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
|
619 *session.Body(), |
|
620 session.Response(), |
|
621 KErrCancel ); |
|
622 } |
|
623 } |
|
624 else |
|
625 { |
|
626 //NOP |
|
627 } |
|
628 } |
|
629 |
|
630 // ----------------------------------------------------------------------------- |
|
631 // CMceStateOffering::EntryCancelL |
|
632 // ----------------------------------------------------------------------------- |
|
633 // |
|
634 void CMceStateOffering::EntryCancelL( TMceStateTransitionEvent& aEvent ) |
|
635 { |
|
636 CMceSipSession& session = aEvent.Session(); |
|
637 CMceSipSession::TSubState subState = session.SubState(); |
|
638 |
|
639 //(try) send CANCEL |
|
640 session.Actions().SendCancelL(); |
|
641 |
|
642 if ( subState == CMceSipSession::EOffering ) |
|
643 { |
|
644 session.Actions().StopMedia(); |
|
645 session.FCActions().ReleaseFC(); |
|
646 } |
|
647 else if ( subState == CMceSipSession::EUpdating ) |
|
648 { |
|
649 session.Actions().UpdateFailed(); |
|
650 } |
|
651 |
|
652 } |
|
653 |
|
654 // ----------------------------------------------------------------------------- |
|
655 // CMceStateOffering::EntryAnswerToUpdateDecodedL |
|
656 // ----------------------------------------------------------------------------- |
|
657 // |
|
658 void CMceStateOffering::EntryAnswerToUpdateDecodedL( TMceStateTransitionEvent& aEvent ) |
|
659 { |
|
660 CMceSipSession& session = aEvent.Session(); |
|
661 |
|
662 //if media error, media unusable -> send BYE, stop media and FC |
|
663 if ( aEvent.ParamStatus() == KErrNone ) |
|
664 { |
|
665 session.Actions().UpdateSucceed(); |
|
666 } |
|
667 else |
|
668 { |
|
669 session.Actions().UpdateFailed(); |
|
670 } |
|
671 |
|
672 } |
|
673 |
|
674 // ----------------------------------------------------------------------------- |
|
675 // CMceStateOffering::EntryAnswerToOfferDecodedL |
|
676 // ----------------------------------------------------------------------------- |
|
677 // |
|
678 void CMceStateOffering::EntryAnswerToOfferDecodedL( TMceStateTransitionEvent& aEvent ) |
|
679 { |
|
680 CMceSipSession& session = aEvent.Session(); |
|
681 CSIPClientTransaction* response = &session.Response(); |
|
682 |
|
683 TInt status = KErrNone; |
|
684 |
|
685 if ( MceSip::ResponseType( *response ) == E1XX && |
|
686 session.Extensions().LevelL( *response, CMceSipExtensions::E100rel ) |
|
687 == CMceSipExtensions::ERequired ) |
|
688 |
|
689 { |
|
690 TBool hasContent = MceSip::HasContent( *response ); |
|
691 |
|
692 // TBD: Quick Fix: Need to have Support in MediaManager to ask do we need |
|
693 // to send SDP or not, decision must be based on conf line, and 2ndly |
|
694 // based on weither negotiation has completed or not. |
|
695 TBool sendSdp = hasContent && |
|
696 ( MCE_NEED_TO_SEND( session, NULL ) || |
|
697 session.Extensions().RemoteIMSRel5() || |
|
698 session.ActiveBody().Modifier( KMceSecPreconditions ) == |
|
699 KMcePreconditionsE2ESupported ); |
|
700 //if there is required header for precodition but no precondition |
|
701 //Prack should indicate precondition failure |
|
702 if ( MceSip::ResponseType( *response ) == E1XX && |
|
703 session.Extensions().LevelL( *response, CMceSipExtensions::ESecPreconds ) |
|
704 == CMceSipExtensions::ERequired ) |
|
705 { |
|
706 session.ActiveBody().iRemoteSecPreconditionsRequired = ETrue; |
|
707 } |
|
708 if ( sendSdp ) |
|
709 { |
|
710 status = session.Actions().UpdateL(); |
|
711 __ASSERT_ALWAYS( status == KMceReady, User::Leave( KErrArgument ) ); |
|
712 //need not to change secure keys |
|
713 if ( session.ActiveBody().SecureSession() && |
|
714 MceSip:: ResponseCode( *response ) == KMceSipSessionProgress) |
|
715 { |
|
716 session.ActiveBody().SecureSession()->iKeyNeedUpdated = EFalse; |
|
717 } |
|
718 NAT_WAIT_NO_EXEC( session, session.Actions().EncodeL() ) |
|
719 //session, session.Actions().EncodeL(); |
|
720 } |
|
721 |
|
722 |
|
723 session.Actions().SendPrackL( sendSdp ); |
|
724 |
|
725 aEvent.Code() = EMceProvisionalResponse; |
|
726 } |
|
727 |
|
728 } |
|
729 |
|
730 |
|
731 // ----------------------------------------------------------------------------- |
|
732 // CMceStateOffering::EntryByeL |
|
733 // ----------------------------------------------------------------------------- |
|
734 // |
|
735 void CMceStateOffering::EntryByeL( TMceStateTransitionEvent& aEvent ) |
|
736 { |
|
737 CMceSipSession& session = aEvent.Session(); |
|
738 |
|
739 //send 200OK and stop media and FC |
|
740 session.Actions().Send200OKL( session.Request() ); |
|
741 session.Actions().StopMedia(); |
|
742 session.FCActions().ReleaseFC(); |
|
743 |
|
744 } |
|
745 |
|
746 // ----------------------------------------------------------------------------- |
|
747 // CMceStateOffering::ExitL |
|
748 // ----------------------------------------------------------------------------- |
|
749 // |
|
750 void CMceStateOffering::ExitL( TMceStateTransitionEvent& aEvent ) |
|
751 { |
|
752 |
|
753 if ( IsExtensionRequestEvent( aEvent )) |
|
754 { |
|
755 //Do Nothing; |
|
756 } |
|
757 |
|
758 |
|
759 else |
|
760 { |
|
761 CMceSipSession& session = aEvent.Session(); |
|
762 CSIPClientTransaction* response = &session.Response(); |
|
763 TInt status = aEvent.ParamStatus(); |
|
764 |
|
765 switch( aEvent.Code() ) |
|
766 { |
|
767 //received BYE causes server & client to terminated state |
|
768 case EMceBye: |
|
769 { |
|
770 session.Actions().StateChanged( KMceStateTerminated ); |
|
771 session.Actions().ClientStateChangedL( |
|
772 CMceSession::ETerminated, session.Request() ); |
|
773 break; |
|
774 } |
|
775 case EMceMediaUpdated: |
|
776 { |
|
777 if ( MceSip::ResponseType( *response ) == E2XX && |
|
778 response->ResponseElements()->CSeqHeader()->Method() == |
|
779 SIPStrings::StringF( SipStrConsts::EInvite ) ) |
|
780 { |
|
781 //server and client state established, |
|
782 //if update was successful Body() returns previous BodyCandidate(), |
|
783 //if update was failed Body() returns original body |
|
784 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
|
785 *session.Body(), |
|
786 session.Response(), |
|
787 status ); |
|
788 session.Actions().StateChanged( KMceStateEstablished ); |
|
789 } |
|
790 break; |
|
791 } |
|
792 case EMceResponse: |
|
793 case EMceErrorResponse: |
|
794 case EMceProvisionalResponse: |
|
795 case EMceRedirectionResponse: |
|
796 { |
|
797 ExitSIPEventL( aEvent ); |
|
798 break; |
|
799 } |
|
800 |
|
801 case EMceItcCancel: |
|
802 { |
|
803 session.Actions().StateChanged( KMceStateCanceled ); |
|
804 session.Actions().ClientStateChanged( aEvent.ParamIDs(), |
|
805 CMceSession::ECancelling ); |
|
806 break; |
|
807 } |
|
808 |
|
809 default: |
|
810 { |
|
811 //NOP |
|
812 } |
|
813 |
|
814 } |
|
815 } |
|
816 |
|
817 } |
|
818 |
|
819 |
|
820 // ----------------------------------------------------------------------------- |
|
821 // CMceStateOffering::ExitSIPEventL |
|
822 // ----------------------------------------------------------------------------- |
|
823 // |
|
824 void CMceStateOffering::ExitSIPEventL( TMceStateTransitionEvent& aEvent ) |
|
825 { |
|
826 |
|
827 CMceSipSession& session = aEvent.Session(); |
|
828 TInt status = aEvent.ParamStatus(); |
|
829 CMceSipSession::TSubState subState = session.SubState(); |
|
830 |
|
831 if ( aEvent.Code() == EMceResponse ) |
|
832 { |
|
833 //error in response handling |
|
834 if ( status < KErrNone && subState == CMceSipSession::EOffering )//failed |
|
835 { |
|
836 //no need to update body to client |
|
837 session.Actions().StateChanged( KMceStateTerminating ); |
|
838 session.Actions().ClientStateChangedL( CMceSession::ETerminating, |
|
839 session.Response(), |
|
840 status ); |
|
841 } |
|
842 else if ( status < KErrNone && subState == CMceSipSession::EUpdating )//failed |
|
843 { |
|
844 //original body is updated to client |
|
845 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
|
846 *session.Body(), |
|
847 session.Response(), |
|
848 status ); |
|
849 session.Actions().StateChanged( KMceStateEstablished ); |
|
850 } |
|
851 else if ( subState == CMceSipSession::ERefreshing ) |
|
852 { |
|
853 session.Actions().StateChanged( KMceStateEstablished ); |
|
854 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
|
855 session.Response() ); |
|
856 } |
|
857 else |
|
858 { |
|
859 // SDP Answer was received previously, ignore the contents if any |
|
860 // Get into established state. |
|
861 if ( !session.WaitingMediaCallback() && |
|
862 !MCE_NEED_TO_RECEIVE( session ) ) |
|
863 { |
|
864 session.Actions().StateChanged( KMceStateEstablished ); |
|
865 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
|
866 session.Response() ); |
|
867 } |
|
868 else |
|
869 { |
|
870 //wait EMceAnswerDecoded or EMceAnswerToUpdateDecoded |
|
871 } |
|
872 } |
|
873 } |
|
874 else if ( aEvent.Code() == EMceErrorResponse ) |
|
875 { |
|
876 if ( subState == CMceSipSession::EOffering ) |
|
877 { |
|
878 TUint code = MceSip::ResponseCode( session.Response() ); |
|
879 if ( code != KMceSipExtensionRequired && code != KMceSipSessionIntervalTooSmall ) |
|
880 { |
|
881 session.Actions().StateChanged( KMceStateTerminated ); |
|
882 session.Actions().ClientStateChangedL( CMceSession::ETerminated, |
|
883 session.Response() ); |
|
884 } |
|
885 } |
|
886 else if ( subState == CMceSipSession::EUpdating ) |
|
887 { |
|
888 if ( MceSip::ResponseCode( |
|
889 session.Response() ) == KMceSipCallOrTransactionDoesNotExist || |
|
890 MceSip::ResponseCode( |
|
891 session.Response() ) == KMceSipRequestTimeout ) |
|
892 { |
|
893 session.Actions().StateChanged( KMceStateTerminating ); |
|
894 session.Actions().ClientStateChangedL( CMceSession::ETerminating, |
|
895 session.Response() ); |
|
896 } |
|
897 else |
|
898 { |
|
899 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
|
900 *session.Body(), |
|
901 session.Response(), |
|
902 KErrCancel ); |
|
903 session.Actions().StateChanged( KMceStateEstablished ); |
|
904 } |
|
905 } |
|
906 else |
|
907 {//MediaUpdated |
|
908 if ( session.PendingTransaction( SIPStrings::StringF( SipStrConsts::EPrack ) ) ) |
|
909 { |
|
910 session.Actions().StateChanged( KMceStateConfirming ); |
|
911 } |
|
912 else |
|
913 { |
|
914 session.Actions().ClientStateChangedL( CMceSession::EEstablished, |
|
915 session.Response() ); |
|
916 session.Actions().StateChanged( KMceStateEstablished ); |
|
917 } |
|
918 } |
|
919 } |
|
920 else if ( aEvent.Code() == EMceRedirectionResponse ) |
|
921 { |
|
922 ExitRedirectionEventL( aEvent ); |
|
923 } |
|
924 |
|
925 |
|
926 else//EMceProvisionalResponse |
|
927 { |
|
928 if ( MceSip::ResponseCode( session.Response() ) > KMceSipTrying && |
|
929 session.Actions().NeedToProcessL( aEvent ) ) |
|
930 { |
|
931 // update RSeq of a handled response to the session if it contains |
|
932 TInt rseqValueOfLatestResponse = KErrNotFound; |
|
933 |
|
934 rseqValueOfLatestResponse = MceSip::RSeq( *session.Response().ResponseElements() ); |
|
935 |
|
936 if ( rseqValueOfLatestResponse != KErrNotFound ) |
|
937 { |
|
938 session.SetRSeq( rseqValueOfLatestResponse ); |
|
939 } |
|
940 |
|
941 session.Actions().ClientStateChangedL( CMceSession::EOffering, |
|
942 *session.Body(), session.Response() ); |
|
943 } |
|
944 |
|
945 if ( session.PendingTransaction( SIPStrings::StringF( SipStrConsts::EPrack ) ) ) |
|
946 { |
|
947 session.Actions().StateChanged( KMceStateConfirming ); |
|
948 } |
|
949 } |
|
950 |
|
951 } |
|
952 |
|
953 |
|
954 |
|
955 // End of File |
|
956 |