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1 /** @file |
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2 * Copyright (c) 2005-2006 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: CUpnpHttpFileTransferWriter is a class responsible for |
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15 * asynchronous writing to a socket owned by CUpnpTcpSession. |
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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 "upnptcpsession.h" |
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22 #include "upnphttpfiletransferwriter.h" |
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23 #include "upnphttpfileaccess.h" |
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24 #define KLogFile _L("DLNAWebServer.txt") |
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25 #include "upnpcustomlog.h" |
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26 |
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27 |
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28 // ======== MEMBER FUNCTIONS ======== |
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29 |
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30 // --------------------------------------------------------------------------- |
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31 // CUpnpHttpFileTransferWriter::NewL |
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32 // Factory method. |
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33 // --------------------------------------------------------------------------- |
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34 // |
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35 CUpnpHttpFileTransferWriter* CUpnpHttpFileTransferWriter::NewL( CUpnpTcpSession& aSession, |
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36 RSocket& aSocket, |
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37 TThreadPriority aPriority, |
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38 TInt aWriteSize ) |
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39 { |
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40 CUpnpHttpFileTransferWriter* self = new ( ELeave ) |
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41 CUpnpHttpFileTransferWriter( aSession, aSocket, aPriority, aWriteSize ); |
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42 CleanupStack::PushL( self ); |
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43 self->ConstructL(); |
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44 CleanupStack::Pop( self ); |
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45 return self; |
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46 } |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // CUpnpHttpFileTransferWriter::CUpnpHttpFileTransferWriter |
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50 // C++ constructor. |
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51 // --------------------------------------------------------------------------- |
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52 // |
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53 CUpnpHttpFileTransferWriter::CUpnpHttpFileTransferWriter( CUpnpTcpSession& aSession, |
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54 RSocket& aSocket, |
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55 TThreadPriority aPriority, |
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56 TInt aWriteSize ) |
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57 :CActive( aPriority ), |
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58 iSocket( aSocket ), |
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59 iSession( aSession ), |
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60 iState(EUnknown), |
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61 iSendPointer(NULL,0), |
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62 iWriteSize(aWriteSize) |
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63 { |
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64 LOGS1( "%i, CUpnpHttpFileTransferWriter::CUpnpHttpFileTransferWriter", iSession.Id() ); |
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65 // No implementation required |
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66 } |
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67 |
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68 // --------------------------------------------------------------------------- |
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69 // CUpnpTcpSessionReader::ConstructL |
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70 // Two-phased constructor |
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71 // constructor that can leave. Used from derived classes. |
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72 // --------------------------------------------------------------------------- |
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73 // |
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74 void CUpnpHttpFileTransferWriter::ConstructL() |
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75 { |
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76 CActiveScheduler::Add( this ); |
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77 iRetryWrite = CUpnpRetryWrite::NewL( iSession, iSocket, this, (TThreadPriority)Priority() ); |
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78 |
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79 iSendBuffer.CreateL( iWriteSize ); |
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80 } |
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81 |
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82 // --------------------------------------------------------------------------- |
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83 // CUpnpTcpSessionReader::~CUpnpTcpSessionReader |
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84 // Destructor. |
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85 // --------------------------------------------------------------------------- |
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86 // |
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87 CUpnpHttpFileTransferWriter::~CUpnpHttpFileTransferWriter() |
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88 { |
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89 Cancel(); |
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90 |
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91 iSendBuffer.Close(); |
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92 |
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93 delete iRetryWrite; |
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94 } |
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95 |
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96 // --------------------------------------------------------------------------- |
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97 // CUpnpHttpFileTransferWriter::DoCancel |
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98 // From class CActive |
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99 // Cancels issued writing request. |
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100 // --------------------------------------------------------------------------- |
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101 // |
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102 void CUpnpHttpFileTransferWriter::DoCancel() |
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103 { |
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104 LOGS1( "%i, CUpnpHttpFileTransferWriter::DoCancel", iSession.Id() ); |
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105 |
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106 iState = ECancelled; |
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107 } |
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108 |
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109 // --------------------------------------------------------------------------- |
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110 // CUpnpHttpFileTransferWriter::RunL |
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111 // From class CActive |
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112 // Function called when issued writing is completed. Function checks if there |
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113 // are any write requests left to send and if there are then it issues writing. |
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114 // If queue is empty then function informs upper layer that writing is completed. |
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115 // --------------------------------------------------------------------------- |
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116 // |
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117 void CUpnpHttpFileTransferWriter::RunL() |
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118 { |
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119 LOGS2( "%i, CUpnpHttpFileTransferWriter::RunL(), iStatus %i", |
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120 iSession.Id() , iStatus.Int() ); |
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121 |
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122 // Active object request complete handler |
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123 if ( iStatus == KErrNone ) |
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124 { |
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125 switch( iState ) |
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126 { |
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127 // Character has been written to socket |
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128 case EHeaders: |
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129 //100-continue not expected |
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130 if(!iSession.FileAccess()) |
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131 { |
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132 Cancel(); |
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133 break; |
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134 } |
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135 else |
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136 { |
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137 iState = EContent; |
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138 } |
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139 case EContent: |
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140 SendNextPortionL(); |
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141 |
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142 break; |
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143 case EFinished: |
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144 iSession.FileTransferWriterDoneL(); |
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145 |
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146 iSession.StartTimeoutTimer(EFalse); |
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147 FinishL(); |
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148 //export finished |
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149 break; |
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150 |
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151 default: |
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152 break; |
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153 }; |
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154 } |
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155 else |
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156 { |
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157 if( (iState == EHeaders || iState == EContent || iState == EFinished) && |
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158 (iStatus.Int() == KErrNoMemory || iStatus.Int() == KErrNotReady ) ) |
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159 { |
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160 iRetryWrite->IssueWriteRetry(); |
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161 } |
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162 else |
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163 { |
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164 // Error: pass it up to session |
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165 iSession.HandleErrorL( iStatus.Int() ); |
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166 iState = ECancelled; |
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167 } |
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168 } |
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169 } |
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170 |
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171 // ----------------------------------------------------------------------------- |
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172 // CUpnpHttpFileTransferWriter::RunError |
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173 // RunError is called when RunL leaves. |
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174 // ----------------------------------------------------------------------------- |
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175 // |
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176 TInt CUpnpHttpFileTransferWriter::RunError( TInt aError ) |
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177 { |
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178 LOGS2( "%i, CUpnpHttpFileTransferWriter::RunError %d" |
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179 , iSession.Id() , aError); |
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180 |
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181 iState = EFinished; |
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182 |
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183 TRAP_IGNORE( HandleErrorL() ); |
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184 iSession.StartClosingSession(); |
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185 |
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186 return KErrNone; |
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187 } |
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188 |
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189 // --------------------------------------------------------------------------- |
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190 // CUpnpHttpFileTransferWriter::SendNextWriteRequestL |
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191 // Function checks if there are any write requests left and if there are then |
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192 // issues writing and removes this request from queue. |
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193 // --------------------------------------------------------------------------- |
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194 // |
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195 void CUpnpHttpFileTransferWriter::SendNextPortionL() |
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196 { |
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197 LOGS2( "%i, CUpnpHttpFileTransferWriter::SendNextPortionL(), iState %i", |
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198 iSession.Id() , iState ); |
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199 |
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200 if( iSession.FileAccess() ) |
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201 { |
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202 if( iState == EContent ) |
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203 if( !IsActive() ) |
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204 { |
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205 iSendPointer.Set( (TUint8*)iSendBuffer.Ptr(),0,iSendBuffer.MaxLength() ); |
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206 if( iSession.FileAccess()->GetL(iSendPointer,iSendBuffer.MaxLength()) ) |
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207 { |
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208 iState = EFinished; |
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209 } |
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210 |
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211 |
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212 iSession.TimerCancel(); |
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213 WriteToSocket(); |
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214 iSession.StartTimeoutTimer(ETrue); |
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215 |
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216 } |
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217 } |
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218 else |
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219 { |
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220 Cancel(); |
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221 } |
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222 |
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223 } |
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224 |
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225 // --------------------------------------------------------------------------- |
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226 // CUpnpHttpFileTransferWriter::StartL |
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227 // Passes control to the reader |
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228 // --------------------------------------------------------------------------- |
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229 // |
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230 void CUpnpHttpFileTransferWriter::StartL() |
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231 { |
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232 iWaiting = EFalse; |
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233 switch(iState) |
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234 { |
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235 case EUnknown: |
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236 |
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237 iState = EHeaders; |
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238 SendHeadersL(); |
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239 break; |
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240 case EHeaders: |
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241 |
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242 if(iSession.FileAccess()->HeadersSent()) |
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243 { |
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244 iState = EContent; |
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245 SendNextPortionL(); |
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246 } |
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247 else |
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248 SendHeadersL(); |
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249 break; |
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250 |
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251 default: |
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252 break; |
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253 } |
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254 } |
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255 |
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256 // --------------------------------------------------------------------------- |
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257 // CUpnpHttpFileTransferWriter::StartL |
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258 // Sends the HTTP headers of the content |
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259 // --------------------------------------------------------------------------- |
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260 // |
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261 void CUpnpHttpFileTransferWriter::SendHeadersL() |
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262 { |
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263 if(iState == EHeaders) |
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264 if( iSession.FileAccess() ) |
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265 if(!IsActive()) |
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266 { |
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267 //in case session not connected,waiting... |
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268 if(!iSession.IsConnected()) |
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269 { |
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270 iWaiting = ETrue; |
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271 return; |
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272 } |
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273 iSendBuffer.Zero(); |
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274 |
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275 if ( ( iSession.FileAccess()->GetHeaders().Length() - |
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276 iSession.FileAccess()->TransferredBytes()) <= |
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277 iSendBuffer.MaxLength() ) |
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278 { |
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279 TPtrC8 headerPointer; |
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280 headerPointer.Set(iSession.FileAccess()->GetHeaders()); |
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281 headerPointer.Set( headerPointer.Right( |
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282 iSession.FileAccess()->GetHeaders().Length()- |
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283 iSession.FileAccess()->TransferredBytes()) ); |
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284 |
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285 iSendBuffer.Append( headerPointer ); |
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286 iSession.FileAccess()->SetHeadersSent(); |
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287 |
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288 // Adding file content to the header |
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289 TInt length = iSendBuffer.MaxLength()-iSendBuffer.Length(); |
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290 |
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291 HBufC8* tmpBuffer = HBufC8::NewLC(length); |
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292 |
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293 iSendPointer.Set(tmpBuffer->Des()); |
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294 if( iSession.FileAccess()->GetL(iSendPointer,length) ) |
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295 { |
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296 iState = EFinished; |
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297 } |
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298 iSendBuffer.Append(iSendPointer); |
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299 CleanupStack::PopAndDestroy( tmpBuffer ); |
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300 } |
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301 else |
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302 { |
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303 TPtrC8 headerPointer; |
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304 headerPointer.Set( iSession.FileAccess()->GetHeaders() ); |
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305 headerPointer.Set( headerPointer.Right( |
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306 iSession.FileAccess()->GetHeaders().Length() - |
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307 iSession.FileAccess()->TransferredBytes() ) ); |
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308 headerPointer.Set( headerPointer.Left( |
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309 iSendBuffer.Length() ) ); |
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310 |
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311 iSendBuffer.Append( headerPointer ); |
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312 iSession.FileAccess()->SetPosOfHeader( |
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313 iSession.FileAccess()->TransferredBytes() + headerPointer.Length() ); |
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314 } |
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315 |
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316 iSendPointer.Set((TUint8*)iSendBuffer.Ptr(),iSendBuffer.Length(),iSendBuffer.MaxLength()); |
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317 |
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318 iSession.TimerCancel(); |
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319 WriteToSocket(); |
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320 iSession.StartTimeoutTimer(ETrue); |
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321 |
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322 if(!iHttpPostStarted) |
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323 { |
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324 iSession.NotifyUpperLayersOnPostL(); |
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325 iHttpPostStarted = ETrue; |
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326 } |
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327 |
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328 } |
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329 } |
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330 |
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331 // --------------------------------------------------------------------------- |
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332 // CUpnpHttpFileTransferWriter::Reset |
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333 // Resets the state of the writer |
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334 // --------------------------------------------------------------------------- |
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335 // |
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336 void CUpnpHttpFileTransferWriter::Reset() |
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337 { |
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338 iState = EUnknown; |
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339 iHttpPostStarted = ETrue; |
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340 } |
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341 |
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342 // --------------------------------------------------------------------------- |
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343 // CUpnpHttpFileTransferWriter::WriteToSocket |
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344 // Writes data to socket |
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345 // --------------------------------------------------------------------------- |
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346 // |
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347 void CUpnpHttpFileTransferWriter::WriteToSocket() |
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348 { |
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349 Deque(); |
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350 CActiveScheduler::Add(this); |
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351 |
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352 iSocket.Write(iSendPointer,iStatus); |
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353 SetActive(); |
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354 } |
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355 |
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356 // --------------------------------------------------------------------------- |
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357 // CUpnpHttpFileTransferWriter::IsWaiting |
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358 // Checks if file transfer writer is in use |
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359 // --------------------------------------------------------------------------- |
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360 // |
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361 TBool CUpnpHttpFileTransferWriter::IsWaiting() |
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362 { |
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363 return iWaiting; |
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364 } |
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365 |
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366 // --------------------------------------------------------------------------- |
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367 // CUpnpHttpFileTransferWriter::IsActivated |
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368 // Writes data to socket |
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369 // --------------------------------------------------------------------------- |
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370 // |
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371 TBool CUpnpHttpFileTransferWriter::IsActivated() |
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372 { |
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373 return (!iWaiting && iState!=EUnknown); |
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374 } |
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375 |
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376 // --------------------------------------------------------------------------- |
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377 // CUpnpHttpFileTransferWriter::IsRetrying |
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378 // if waiting to retry writing to a socket |
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379 // --------------------------------------------------------------------------- |
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380 // |
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381 TBool CUpnpHttpFileTransferWriter::IsRetrying() |
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382 { |
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383 return (iRetryWrite->IsStarted()); |
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384 } |
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385 |
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386 // --------------------------------------------------------------------------- |
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387 // CUpnpHttpFileTransferWriter::IsCancelled |
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388 // Checks if transfer is cancelled |
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389 // --------------------------------------------------------------------------- |
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390 // |
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391 TBool CUpnpHttpFileTransferWriter::IsCancelled() |
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392 { |
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393 return (iState== ECancelled); |
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394 } |
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395 // --------------------------------------------------------------------------- |
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396 // CUpnpHttpFileTransferWriter::FinishL |
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397 // Finishes download |
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398 // --------------------------------------------------------------------------- |
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399 // |
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400 void CUpnpHttpFileTransferWriter::FinishL() |
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401 { |
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402 iSession.FileTransferWriterHandleMoreL(); |
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403 } |
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404 |
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405 // --------------------------------------------------------------------------- |
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406 // CUpnpHttpFileTransferWriter::HandleErrorL |
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407 // Handles RunL error |
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408 // --------------------------------------------------------------------------- |
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409 // |
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410 void CUpnpHttpFileTransferWriter::HandleErrorL() |
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411 { |
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412 iSession.FileTransferWriterDoneL(); // 200ok to upper layers + delete iFileServe |
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413 FinishL(); // serving uotstanding requests |
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414 } |
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415 |
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416 // --------------------------------------------------------------------------- |
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417 // CUpnpHttpFileTransferWriter::SetPostNotify |
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418 // Post notify will be sent |
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419 // --------------------------------------------------------------------------- |
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420 // |
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421 void CUpnpHttpFileTransferWriter::SetPostNotify() |
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422 { |
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423 iHttpPostStarted = EFalse; |
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424 } |
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425 |
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426 // --------------------------------------------------------------------------- |
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427 // CUpnpHttpFileTransferWriter::RetryWriteFailL |
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428 // |
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429 // --------------------------------------------------------------------------- |
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430 // |
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431 void CUpnpHttpFileTransferWriter::RetryWriteFailL( TInt aError ) |
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432 { |
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433 // Error: pass it up to session |
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434 iSession.HandleErrorL( aError ); |
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435 iState = ECancelled; |
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436 } |
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437 |
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438 // --------------------------------------------------------------------------- |
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439 // CUpnpHttpFileTransferWriter::RetryWriteSucceed |
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440 // |
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441 // --------------------------------------------------------------------------- |
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442 // |
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443 void CUpnpHttpFileTransferWriter::RetryWriteSucceed() |
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444 { |
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445 WriteToSocket(); |
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446 } |
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447 |
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448 // End of File |