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1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Name : CTcpResSender.cpp |
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15 // Part of : ConnectionMgr |
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16 // Version : SIP/4.0 |
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17 // |
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18 |
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19 |
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20 |
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21 #include "SipAssert.h" |
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22 #include "CTcpResSender.h" |
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23 #include "CSIPServerResolver.h" |
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24 #include "CSipConnection.h" |
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25 #include "COutgoingData.h" |
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26 #include "sipuri.h" |
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27 #include "sipviaheader.h" |
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28 #include "siphostport.h" |
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29 #include "CTransportBase.h" |
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30 #include "MSIPResolvingResult.h" |
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31 #include "sipstrings.h" |
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32 #include "sipstrconsts.h" |
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33 #include "TSIPTransportParams.h" |
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34 #include "siperr.h" |
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35 |
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36 const TInt CTcpResponseSender::iSenderOffset = |
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37 _FOFF(CTcpResponseSender, iSenderLink); |
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38 |
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39 |
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40 // ----------------------------------------------------------------------------- |
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41 // CTcpResponseSender::CTcpResponseSender |
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42 // ----------------------------------------------------------------------------- |
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43 // |
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44 CTcpResponseSender::CTcpResponseSender( const TSIPTransportParams& aParams, |
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45 CSIPServerResolver& aHostResolver, |
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46 CSipConnection& aOwner ) : |
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47 iTransportParams( aParams ), |
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48 iHostResolver( aHostResolver ), |
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49 iOwner( &aOwner ), |
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50 iSending( EFalse ), |
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51 iResolving( EFalse ) |
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52 { |
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53 } |
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54 |
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55 // ----------------------------------------------------------------------------- |
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56 // CTcpResponseSender::~CTcpResponseSender |
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57 // ----------------------------------------------------------------------------- |
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58 // |
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59 CTcpResponseSender::~CTcpResponseSender() |
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60 { |
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61 if ( iResolving && iData ) |
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62 { |
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63 CompleteRequest( iData->Status(), KErrCouldNotConnect ); |
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64 } |
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65 iHostResolver.Cancel( this ); |
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66 iResultArray.ResetAndDestroy(); |
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67 delete iData; |
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68 } |
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69 |
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70 // ----------------------------------------------------------------------------- |
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71 // CTcpResponseSender::ConnectionFailedL |
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72 // ----------------------------------------------------------------------------- |
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73 // |
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74 void CTcpResponseSender::ConnectionFailedL() |
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75 { |
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76 // Safety check, although shouldn't ever exceed array bounds at this point |
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77 if ( IndexWithinBounds() ) |
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78 { |
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79 iResultArray[ iCurrentIndex ]->SetFailed( ETrue ); |
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80 } |
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81 SendL(); |
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82 } |
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83 |
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84 // ----------------------------------------------------------------------------- |
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85 // CTcpResponseSender::Connected |
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86 // ----------------------------------------------------------------------------- |
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87 // |
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88 void CTcpResponseSender::Connected( const TInetAddr& aAddr ) |
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89 { |
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90 if ( iSending ) |
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91 { |
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92 if ( IndexWithinBounds() && |
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93 iResultArray[ iCurrentIndex ]->Address().CmpAddr( aAddr ) ) |
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94 { |
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95 iOwner->RemoveTcpSender( this ); |
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96 } |
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97 } |
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98 } |
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99 |
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100 // ----------------------------------------------------------------------------- |
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101 // CTcpResponseSender::IsInProgress |
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102 // ----------------------------------------------------------------------------- |
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103 // |
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104 TBool CTcpResponseSender::IsInProgress( COutgoingData& aData ) |
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105 { |
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106 return iData && aData.Status() == iData->Status(); |
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107 } |
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108 |
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109 // ----------------------------------------------------------------------------- |
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110 // CTcpResponseSender::ResolveL |
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111 // ----------------------------------------------------------------------------- |
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112 // |
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113 void CTcpResponseSender::ResolveL( COutgoingData& aData ) |
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114 { |
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115 if ( !iResolving ) |
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116 { |
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117 if ( aData.Message().HasHeader( |
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118 SIPStrings::StringF( SipStrConsts::EViaHeader ) ) ) |
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119 { |
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120 TSglQueIter< CSIPHeaderBase > iter = aData.Message().Headers( |
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121 SIPStrings::StringF( SipStrConsts::EViaHeader ) ); |
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122 CSIPHeaderBase* header = iter; |
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123 CSIPViaHeader* via = static_cast<CSIPViaHeader*>( header ); |
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124 iHostResolver.GetByViaL( *via, iResultArray, this ); |
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125 iResolving = ETrue; |
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126 } |
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127 } |
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128 } |
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129 |
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130 // ----------------------------------------------------------------------------- |
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131 // CTcpResponseSender::CancelSend |
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132 // ----------------------------------------------------------------------------- |
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133 // |
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134 TBool CTcpResponseSender::CancelSend( TRequestStatus &aStatus ) |
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135 { |
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136 if ( iResolving && iData && &aStatus == iData->Status() ) |
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137 { |
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138 CompleteRequest( iData->Status(), KErrSIPTransportFailure ); |
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139 iHostResolver.Cancel( this ); |
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140 iResolving = EFalse; |
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141 return ETrue; |
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142 } |
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143 return EFalse; |
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144 } |
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145 |
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146 // ----------------------------------------------------------------------------- |
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147 // CTcpResponseSender::SetData |
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148 // ----------------------------------------------------------------------------- |
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149 // |
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150 void CTcpResponseSender::SetData( COutgoingData* aData ) |
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151 { |
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152 __SIP_ASSERT_RETURN( !iData, KErrAlreadyExists ); |
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153 iData = aData; |
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154 } |
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155 |
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156 // ----------------------------------------------------------------------------- |
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157 // CTcpResponseSender::CompletedL |
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158 // ----------------------------------------------------------------------------- |
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159 // |
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160 void CTcpResponseSender::CompletedL() |
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161 { |
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162 iResolving = EFalse; |
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163 SendL(); |
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164 } |
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165 |
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166 // ----------------------------------------------------------------------------- |
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167 // CTcpResponseSender::ErrorOccured |
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168 // ----------------------------------------------------------------------------- |
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169 // |
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170 void CTcpResponseSender::ErrorOccured( TInt /*aError*/ ) |
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171 { |
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172 iResolving = EFalse; |
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173 if ( iData ) |
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174 { |
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175 CompleteRequest( iData->Status(), KErrCouldNotConnect ); |
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176 } |
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177 iOwner->RemoveTcpSender( this ); |
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178 } |
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179 |
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180 // ----------------------------------------------------------------------------- |
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181 // CTcpResponseSender::SendL |
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182 // ----------------------------------------------------------------------------- |
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183 // |
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184 void CTcpResponseSender::SendL() |
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185 { |
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186 __SIP_ASSERT_LEAVE( iData, KErrNotFound ); |
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187 |
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188 MSIPResolvingResult* result = FirstUnfailedResult(); |
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189 if ( result ) |
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190 { |
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191 CTransportBase* transport; |
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192 transport = iOwner->FindTransportL( iTransportParams, |
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193 &iData->Message(), |
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194 result->Address() ); |
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195 if ( transport ) |
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196 { |
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197 iSending = ETrue; |
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198 transport->Send( iTransportParams, |
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199 static_cast<CSIPResponse&>( iData->Message() ), |
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200 result->Address(), |
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201 *iData->Status() ); |
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202 } |
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203 else |
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204 { |
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205 iOwner->CreateTcpTransportPointL( iTransportParams, |
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206 result->Address() ); |
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207 |
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208 transport = iOwner->FindTransportL( iTransportParams, |
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209 &iData->Message(), |
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210 result->Address() ); |
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211 if ( transport ) |
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212 { |
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213 iSending = ETrue; |
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214 transport->Send( iTransportParams, |
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215 static_cast<CSIPResponse&>( iData->Message() ), |
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216 result->Address(), |
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217 *iData->Status() ); |
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218 } |
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219 else |
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220 { |
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221 CompleteRequest( iData->Status(), KErrCouldNotConnect ); |
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222 iOwner->RemoveTcpSender( this ); |
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223 } |
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224 } |
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225 } |
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226 else |
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227 { |
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228 // Sending to every resolved address failed, resolve more |
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229 ResolveL( *iData ); |
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230 } |
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231 } |
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232 |
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233 // ----------------------------------------------------------------------------- |
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234 // CTcpResponseSender::CompleteRequest |
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235 // ----------------------------------------------------------------------------- |
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236 // |
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237 void CTcpResponseSender::CompleteRequest( TRequestStatus* aStatus, TInt aReason ) |
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238 { |
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239 if ( aStatus != 0 && *aStatus == KRequestPending ) |
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240 { |
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241 User::RequestComplete( aStatus, aReason ); |
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242 } |
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243 } |
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244 |
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245 // ----------------------------------------------------------------------------- |
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246 // CTcpResponseSender::FirstUnfailedResult |
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247 // ----------------------------------------------------------------------------- |
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248 // |
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249 MSIPResolvingResult* CTcpResponseSender::FirstUnfailedResult() |
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250 { |
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251 for ( TInt i = 0; i < iResultArray.Count(); i++ ) |
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252 { |
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253 MSIPResolvingResult* result = iResultArray[ i ]; |
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254 if ( !result->Failed() ) |
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255 { |
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256 iCurrentIndex = i; |
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257 return result; |
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258 } |
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259 } |
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260 iCurrentIndex = KErrNotFound; |
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261 return 0; |
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262 } |
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263 |
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264 // ----------------------------------------------------------------------------- |
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265 // CTcpResponseSender::IndexWithinBounds |
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266 // ----------------------------------------------------------------------------- |
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267 // |
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268 TBool CTcpResponseSender::IndexWithinBounds() |
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269 { |
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270 return ( iCurrentIndex >= 0 && iCurrentIndex < iResultArray.Count() ); |
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271 } |