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1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Name : Establishing.cpp |
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15 // Part of : SIPDialogs |
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16 // Version : SIP/6.0 |
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17 // |
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18 |
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19 |
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20 |
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21 |
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22 #include "Establishing.h" |
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23 #include "MDialogContext.h" |
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24 #include "TransactionItemBase.h" |
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25 #include "siperr.h" |
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26 #include "SipAssert.h" |
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27 #include "MTransactionUser.h" |
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28 #include "MTransactionHeaders.h" |
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29 #include "siprequest.h" |
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30 #include "sipresponse.h" |
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31 #include "siptoheader.h" |
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32 #include "sipfromheader.h" |
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33 #include "sipcallidheader.h" |
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34 #include "sipcseqheader.h" |
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35 #include "CSigCompMgr.h" |
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36 #include "sipstrings.h" |
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37 #include "sipstrconsts.h" |
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38 |
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39 _LIT8(KEstablishing, "Establishing"); |
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40 const TUint K100Response = 100; |
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41 |
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42 |
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43 // ----------------------------------------------------------------------------- |
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44 // TEstablishing::TEstablishing |
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45 // ----------------------------------------------------------------------------- |
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46 // |
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47 TEstablishing::TEstablishing (MDialogContext& aDialog, |
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48 TDialogStateBase& aStateEarly, |
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49 TDialogStateBase& aStateConfirmed, |
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50 TDialogStateBase& aStateTerminated) |
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51 : TDialogStateBase(aDialog), |
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52 iTagParamName(SIPStrings::StringF(SipStrConsts::ETag)), |
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53 iStateEarly(aStateEarly), |
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54 iStateConfirmed(aStateConfirmed), |
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55 iStateTerminated(aStateTerminated) |
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56 { |
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57 } |
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58 |
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59 // ----------------------------------------------------------------------------- |
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60 // TEstablishing::Name |
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61 // ----------------------------------------------------------------------------- |
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62 // |
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63 const TDesC8& TEstablishing::Name () const |
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64 { |
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65 return KEstablishing; |
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66 } |
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67 |
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68 // ----------------------------------------------------------------------------- |
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69 // TEstablishing::RequestsWithinDialogAllowed |
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70 // ----------------------------------------------------------------------------- |
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71 // |
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72 TBool TEstablishing::RequestsWithinDialogAllowed () const |
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73 { |
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74 return EFalse; |
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75 } |
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76 |
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77 // ----------------------------------------------------------------------------- |
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78 //TEstablishing::Accept |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 TBool TEstablishing::Accept (CSIPRequest& aRequest) const |
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82 { |
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83 return (aRequest.Method() == SIPStrings::StringF(SipStrConsts::ENotify)); |
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84 } |
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85 |
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86 // ----------------------------------------------------------------------------- |
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87 // TEstablishing::SendL |
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88 // ----------------------------------------------------------------------------- |
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89 // |
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90 void TEstablishing::SendL (TTransactionId& aTransactionId, |
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91 CSIPRequest* aRequest, |
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92 CTransactionItemBase& aTransactionItem, |
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93 CURIContainer& aRemoteTarget) |
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94 |
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95 { |
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96 TSIPTransportParams params( |
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97 iDialog.TransportParams(iDialog.RegistrationId())); |
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98 |
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99 if (iDialog.CallId()) |
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100 { |
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101 // The dialog state has been reseted, the data already exists |
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102 aRequest->From()->SetParamL(SIPStrings::StringF(SipStrConsts::ETag), |
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103 iDialog.LocalTag()); |
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104 iDialog.AddCallIdHeaderInDialogL(*aRequest); |
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105 iDialog.AddCSeqHeaderInDialogL(*aRequest); |
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106 aTransactionItem.SendL(params,aTransactionId,iDialog.RegistrationId(), |
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107 aRequest,aRemoteTarget); |
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108 } |
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109 else |
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110 { |
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111 MTransactionHeaders* transactionHeaders = |
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112 aTransactionItem.SendAndGetHeadersL(params,aTransactionId, |
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113 iDialog.RegistrationId(), |
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114 aRequest,aRemoteTarget); |
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115 |
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116 TCleanupItem cleanupItem(DeleteTransactionHeaders,transactionHeaders); |
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117 CleanupStack::PushL(cleanupItem); |
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118 |
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119 __ASSERT_ALWAYS(aTransactionId != KEmptyTransactionId, |
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120 User::Leave(KErrSIPInvalidDialogRequest)); |
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121 |
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122 // Local CSeq |
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123 iDialog.SetLocalSeqNum(transactionHeaders->CSeqNumber()); |
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124 |
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125 // Call-ID |
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126 CSIPCallIDHeader* callId = transactionHeaders->CallIDHeader(); |
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127 __ASSERT_ALWAYS(callId, User::Leave(KErrSIPInvalidDialogRequest)); |
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128 iDialog.SetCallId(callId); |
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129 |
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130 // Local tag |
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131 CSIPFromHeader* from = transactionHeaders->FromHeader(); |
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132 __ASSERT_ALWAYS(from, User::Leave(KErrSIPInvalidDialogRequest)); |
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133 CleanupStack::PushL(from); |
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134 __ASSERT_ALWAYS(from->HasParam(iTagParamName), |
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135 User::Leave(KErrSIPInvalidDialogRequest)); |
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136 iDialog.SetLocalTag(from->ParamValue(iTagParamName)); |
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137 CleanupStack::PopAndDestroy(from); |
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138 |
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139 CleanupStack::PopAndDestroy(); // transactionHeaders |
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140 } |
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141 } |
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142 |
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143 // ----------------------------------------------------------------------------- |
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144 // TEstablishing::SendL |
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145 // ----------------------------------------------------------------------------- |
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146 // |
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147 void TEstablishing::SendL (CTransactionItemBase& aTransactionItem, |
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148 CSIPResponse* aResponse) |
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149 { |
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150 TSIPTransportParams params(iDialog.TransportParams(KEmptyRegistrationId)); |
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151 if (aResponse->Type() == CSIPResponse::E1XX) |
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152 { |
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153 iDialog.ChangeState(iStateEarly); |
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154 } |
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155 else |
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156 { |
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157 iDialog.ChangeState(iStateConfirmed); |
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158 } |
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159 aTransactionItem.SendL(params,aResponse,ETrue); |
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160 } |
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161 |
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162 // ----------------------------------------------------------------------------- |
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163 // TEstablishing::ReceiveL |
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164 // ----------------------------------------------------------------------------- |
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165 // |
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166 void TEstablishing::ReceiveL (CTransactionItemBase& aTransactionItem, |
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167 CSIPResponse* aResponse) |
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168 { |
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169 if (aResponse->IsErrorResponse()) |
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170 { |
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171 TUint resCode = aResponse->ResponseCode(); |
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172 if( resCode == 494 || resCode == 401 || resCode == 407) |
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173 { |
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174 delete aResponse; |
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175 PassToOwner(aTransactionItem,KErrSIPInvalidDialogResponse); |
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176 } |
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177 else |
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178 { |
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179 PassToOwnerL(aTransactionItem,aResponse); |
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180 } |
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181 iDialog.ChangeState(iStateTerminated); |
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182 } |
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183 else if (aResponse->ResponseCode() == K100Response) |
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184 { |
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185 PassToOwnerL(aTransactionItem,aResponse); |
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186 } |
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187 else // 101-299 response |
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188 { |
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189 iDialog.SetRouteSetUsingRecordRouteL( |
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190 *aResponse, ETrue, KErrSIPInvalidDialogResponse); |
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191 iDialog.SetRemoteTargetWithMsgL(*aResponse); |
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192 iDialog.SetRemoteTagL(aResponse->To()); |
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193 |
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194 if (aResponse->Type() == CSIPResponse::E1XX) // Provisional response |
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195 { |
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196 PassToOwnerL(aTransactionItem,aResponse); |
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197 iDialog.ChangeState(iStateEarly); |
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198 return; |
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199 } |
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200 |
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201 if (aTransactionItem.OverlappingRestricted()) |
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202 { |
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203 aTransactionItem.SetOverlappingRestricted(EFalse); |
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204 } |
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205 |
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206 PassToOwnerL(aTransactionItem,aResponse); |
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207 iDialog.ChangeState(iStateConfirmed); |
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208 } |
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209 } |
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210 |
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211 // ----------------------------------------------------------------------------- |
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212 // TEstablishing::ReceiveL |
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213 // ----------------------------------------------------------------------------- |
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214 // |
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215 void TEstablishing::ReceiveL (TTransactionId aTransactionId, |
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216 CSIPRequest* aRequest) |
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217 { |
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218 CSIPFromHeader* from = aRequest->From(); |
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219 __SIP_ASSERT_LEAVE (from != 0, KErrArgument); |
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220 if (iDialog.RemoteTagSet()) |
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221 { |
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222 __ASSERT_ALWAYS(iDialog.RemoteTag() == from->ParamValue(iTagParamName), |
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223 User::Leave(KErrSIPInvalidDialogRequest)); |
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224 } |
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225 else |
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226 { |
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227 iDialog.SetRemoteTagL(aRequest->From()); |
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228 } |
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229 |
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230 iDialog.SetRouteSetUsingRecordRouteL( |
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231 *aRequest, EFalse, KErrSIPInvalidDialogRequest); |
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232 iDialog.SetRemoteTargetWithMsgL(*aRequest); |
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233 |
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234 CSIPCSeqHeader* cseq = aRequest->CSeq(); |
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235 __SIP_ASSERT_LEAVE (cseq != 0, KErrArgument); |
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236 |
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237 iDialog.SetRemoteSeqNum(cseq->Seq()); |
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238 |
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239 TBool isNotify = |
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240 (aRequest->Method() == SIPStrings::StringF(SipStrConsts::ENotify)); |
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241 |
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242 PassToOwnerL(aTransactionId,aRequest); |
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243 |
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244 if (isNotify) |
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245 { |
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246 iDialog.ChangeState(iStateConfirmed); |
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247 } |
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248 } |
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249 |
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250 // ----------------------------------------------------------------------------- |
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251 // TEstablishing::EndTransaction |
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252 // ----------------------------------------------------------------------------- |
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253 // |
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254 void TEstablishing::EndTransaction (CTransactionItemBase& aTransactionItem, |
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255 TInt aReason) |
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256 { |
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257 if (aReason) |
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258 { |
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259 PassToOwner(aTransactionItem,aReason); |
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260 } |
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261 if (iDialog.FirstTransactionId() == aTransactionItem.Id()) |
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262 { |
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263 iDialog.SelfDestruct(); |
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264 } |
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265 } |
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266 |
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267 // ----------------------------------------------------------------------------- |
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268 // TEstablishing::DeleteTransactionHeaders |
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269 // ----------------------------------------------------------------------------- |
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270 // |
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271 void TEstablishing::DeleteTransactionHeaders (TAny* aTransactionHeaders) |
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272 { |
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273 MTransactionHeaders* transactionHeaders = |
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274 reinterpret_cast<MTransactionHeaders*>(aTransactionHeaders); |
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275 delete transactionHeaders; |
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276 } |
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277 |
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278 // ----------------------------------------------------------------------------- |
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279 // TEstablishing::GetState |
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280 // ----------------------------------------------------------------------------- |
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281 // |
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282 void TEstablishing::GetState (CSIPInternalStates::TState& aState) |
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283 { |
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284 aState = CSIPInternalStates::EDialogEstablishing; |
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285 } |
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286 |