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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: CXcapRetrieval |
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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 // INCLUDES |
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22 #include "XcapCache.h" |
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23 #include "XcapAppUsage.h" |
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24 #include "XcapDocument.h" |
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25 #include "XcapProtocol.h" |
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26 #include "XcapRetrieval.h" |
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27 #include "XcapUriParser.h" |
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28 #include "XdmXmlParser.h" |
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29 #include "XcapHttpReqGet.h" |
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30 #include "XcapHttpTransport.h" |
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31 #include "XcapOperationFactory.h" |
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32 |
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33 // ================= MEMBER FUNCTIONS ======================= |
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34 |
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35 // --------------------------------------------------------- |
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36 // C++ constructor can NOT contain any code, that |
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37 // might leave. |
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38 // --------------------------------------------------------- |
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39 // |
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40 CXcapRetrieval::CXcapRetrieval( CXcapDocument& aParentDoc, |
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41 CXcapDocumentNode* aTargetNode, |
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42 CXcapOperationFactory& aOperationFactory ) : |
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43 CXcapHttpOperation( aParentDoc, aTargetNode, aOperationFactory ), |
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44 iCacheOperation( EFalse ), |
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45 iOperationType( aTargetNode == NULL ? |
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46 EXdmDocument : EXdmPartialDocument ) |
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47 { |
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48 } |
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49 |
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50 // --------------------------------------------------------- |
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51 // CXcapRetrieval::NewL |
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52 // |
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53 // --------------------------------------------------------- |
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54 // |
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55 CXcapRetrieval* CXcapRetrieval::NewL( CXcapDocument& aParentDoc, |
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56 CXcapDocumentNode* aTargetNode, |
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57 CXcapOperationFactory& aOperationFactory ) |
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58 { |
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59 CXcapRetrieval* self = new ( ELeave ) CXcapRetrieval( aParentDoc, aTargetNode, aOperationFactory ); |
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60 CleanupStack::PushL( self ); |
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61 self->BaseConstructL(); |
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62 self->ConstructL(); |
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63 CleanupStack::Pop(); |
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64 return self; |
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65 } |
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66 |
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67 // --------------------------------------------------------- |
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68 // CXcapRetrieval::ConstructL |
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69 // |
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70 // --------------------------------------------------------- |
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71 // |
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72 void CXcapRetrieval::ConstructL() |
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73 { |
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74 #ifdef _DEBUG |
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75 iOperationFactory.WriteToLog( _L8( "-> CXcapRetrieval::ConstructL" ) ); |
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76 #endif |
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77 CXcapHttpReqGet* request = Transport().GetL( iTargetDoc.Name() ); |
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78 CleanupStack::PushL( request ); |
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79 User::LeaveIfError( iRequestQueue.Append( request ) ); |
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80 request->SetExpiryTimeL( NULL, KDefaultHttpRequestTimeout * 1000000 ); |
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81 CleanupStack::Pop(); //request |
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82 if( iOperationType != EXdmDocument && iDocumentSubset != NULL ) |
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83 { |
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84 iUriParser->SetDocumentSubset( iDocumentSubset ); |
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85 //Add namespace mappings |
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86 User::LeaveIfError( iTargetDoc.ApplicationUsage().Validate( |
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87 *iDocumentSubset, iUriParser, ETrue ) ); |
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88 } |
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89 #ifdef _DEBUG |
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90 iOperationFactory.WriteToLog( _L8( "<- CXcapRetrieval::ConstructL" ) ); |
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91 #endif |
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92 } |
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93 |
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94 // --------------------------------------------------------- |
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95 // CXcapRetrieval::ExecuteL |
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96 // |
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97 // --------------------------------------------------------- |
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98 // |
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99 void CXcapRetrieval::ExecuteL() |
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100 { |
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101 #ifdef _DEBUG |
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102 iOperationFactory.WriteToLog( _L8( "CXcapRetrieval::ExecuteL()" ) ); |
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103 #endif |
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104 TPtrC8 eTag = iTargetDoc.ETag(); |
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105 if( eTag.Length() > 0 ) |
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106 { |
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107 #ifdef _DEBUG |
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108 iOperationFactory.WriteToLog( _L8( " Using ETag \"%S\" - Length: %d" ), |
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109 &eTag, eTag.Length() ); |
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110 #endif |
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111 //iActiveRequest->SetHeaderL( KHttpHeaderIfNoneMatch, eTag ); |
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112 } |
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113 TRAPD( error, iUriParser->ParseL( iActiveRequest->RequestUriL() ) ); |
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114 if( error == KErrNone ) |
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115 { |
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116 TPtrC8 uri = iUriParser->DesC8(); |
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117 HBufC8* escape = CXcapHttpOperation::EscapeLC( uri ); |
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118 iActiveRequest->UpdateRequestUriL( escape->Des() ); |
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119 CleanupStack::PopAndDestroy(); //escape |
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120 #ifdef _DEBUG |
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121 iOperationFactory.WriteToLog( _L8( " New URI: %S" ), &uri ); |
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122 #endif |
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123 } |
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124 } |
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125 |
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126 // --------------------------------------------------------- |
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127 // CXcapRetrieval::OperationCompleteL |
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128 // |
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129 /* const TDesC8& aETag, |
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130 const TDesC& aDocumentName, |
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131 const TDesC8& aRootLocation, |
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132 const TDesC8& aResponseData*/ |
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133 // --------------------------------------------------------- |
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134 // |
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135 void CXcapRetrieval::OperationCompleteL() |
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136 { |
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137 #ifdef _DEBUG |
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138 iOperationFactory.WriteToLog( _L8( "CXcapRetrieval::OperationCompleteL()" ) ); |
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139 #endif |
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140 TInt generalErr = ReinterpretStatus( iRequestData->iHttpStatus ); |
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141 if( generalErr == KErrNone ) |
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142 { |
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143 #ifdef _DEBUG |
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144 iOperationFactory.WriteToLog( _L8( " No general errors found" ) ); |
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145 #endif |
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146 iCacheOperation ? HandleCacheOperationL() : HandleNetworkOperationL(); |
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147 } |
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148 else |
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149 { |
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150 #ifdef _DEBUG |
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151 iOperationFactory.WriteToLog( _L8( " General errors found - Status: %d Error: %d" ), |
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152 iRequestData->iHttpStatus, generalErr ); |
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153 #endif |
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154 iCompleted = ETrue; |
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155 iResult = generalErr; |
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156 } |
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157 } |
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158 |
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159 // --------------------------------------------------------- |
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160 // CXcapRetrieval::HandleCacheOperationL |
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161 // |
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162 // --------------------------------------------------------- |
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163 // |
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164 void CXcapRetrieval::HandleCacheOperationL() |
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165 { |
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166 #ifdef _DEBUG |
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167 iOperationFactory.WriteToLog( _L8( "CXcapRetrieval::HandleCacheOperationL() - Operation type: %d Target node: %x" ), |
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168 iOperationType, iDocumentSubset ); |
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169 #endif |
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170 TPtrC8 responseData = Descriptor( iRequestData->iResponseData ); |
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171 iOperationType == EXdmDocument && iDocumentSubset == NULL ? |
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172 iXmlParser->ParseDocumentL( &iTargetDoc, responseData ) : |
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173 iXmlParser->ParseDocumentL( &iTargetDoc, responseData, iDocumentSubset ); |
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174 iCompleted = ETrue; |
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175 } |
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176 |
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177 // --------------------------------------------------------- |
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178 // CXcapRetrieval::HandleNetworkOperationL |
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179 // |
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180 // --------------------------------------------------------- |
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181 // |
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182 void CXcapRetrieval::HandleNetworkOperationL() |
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183 { |
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184 #ifdef _DEBUG |
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185 iOperationFactory.WriteToLog( _L8( "CXcapRetrieval::HandleNetworkOperationL()" ) ); |
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186 #endif |
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187 TPtrC name = iTargetDoc.Name(); |
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188 TPtrC8 root = Transport().RootUri(); |
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189 switch( iRequestData->iHttpStatus ) |
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190 { |
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191 case 200: //ETag was stale |
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192 { |
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193 #ifdef _DEBUG |
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194 iOperationFactory.WriteToLog( _L8( " Status 200 - ETag was stale" ) ); |
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195 #endif |
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196 TPtrC8 responseData = Descriptor( iRequestData->iResponseData ); |
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197 if( responseData.Length() <= 0 ) |
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198 break; |
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199 if( iOperationType == EXdmDocument ) |
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200 { |
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201 TPtrC8 eTag = Descriptor( iRequestData->iETag ); |
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202 //If the ETag has not changed, server should return |
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203 //304 (Not modified), but just in case, let's check the |
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204 //ETag value, anyway. |
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205 if( eTag.Length() > 0 && eTag.Compare( iTargetDoc.ETag() ) != 0 ) |
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206 { |
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207 iTargetDoc.SetETag( eTag ); |
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208 RXcapCache* cache = iTargetDoc.Protocol().Cache(); |
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209 if( cache && !( iOptionFlags & KNoCache ) ) |
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210 cache->Store( iTargetDoc.ETag(), name, root, responseData ); |
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211 } |
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212 else |
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213 { |
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214 #ifdef _DEBUG |
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215 iOperationFactory.WriteToLog( _L8( " ETag values match, do not update cache" ) ); |
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216 #endif |
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217 } |
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218 iXmlParser->ParseDocumentL( &iTargetDoc, responseData ); |
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219 } |
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220 else if( iOperationType == EXdmPartialDocument ) |
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221 { |
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222 #ifdef _DEBUG |
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223 iOperationFactory.WriteToLog( _L8( " Parse a partial document" ) ); |
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224 #endif |
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225 //The target node must be emptied before inserting new content |
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226 iDocumentSubset->SetEmptyNode( ETrue ); |
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227 iDocumentSubset->SetEmptyNode( EFalse ); |
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228 iXmlParser->ParseDocumentL( responseData, iDocumentSubset ); |
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229 } |
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230 iCompleted = ETrue; |
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231 } |
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232 break; |
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233 case 304: |
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234 { |
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235 RXcapCache* cache = iTargetDoc.Protocol().Cache(); |
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236 if( cache ) |
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237 { |
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238 #ifdef _DEBUG //ETag is up to date - cache still valid |
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239 iOperationFactory.WriteToLog( _L8( " Status 304 - Cached version is valid" ) ); |
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240 #endif |
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241 TInt length = iTargetDoc.DataLength(); |
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242 __ASSERT_DEBUG( length > 0, User::Panic( _L( "CXcapRetrieval" ), 1 ) ); |
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243 delete iRequestData->iResponseData; |
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244 iRequestData->iResponseData = NULL; |
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245 iRequestData->iResponseData = HBufC8::NewL( length ); |
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246 TPtr8 desc( iRequestData->iResponseData->Des() ); |
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247 cache->FetchDocumentContent( desc, name, root ); |
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248 if( iOperationType == EXdmDocument && !iTargetDoc.DocumentRoot() ) |
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249 { |
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250 #ifdef _DEBUG |
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251 iOperationFactory.WriteToLog( _L8( " No content => parse cached document" ) ); |
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252 #endif |
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253 iXmlParser->ParseDocumentL( &iTargetDoc, desc ); |
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254 } |
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255 else if( iOperationType == EXdmPartialDocument ) |
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256 { |
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257 #ifdef _DEBUG |
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258 iOperationFactory.WriteToLog( _L8( " Parse a partial document" ) ); |
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259 #endif |
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260 iXmlParser->ParseDocumentL( &iTargetDoc, desc, iDocumentSubset ); |
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261 } |
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262 } |
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263 iCompleted = ETrue; |
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264 } |
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265 break; |
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266 default: |
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267 #ifdef _DEBUG |
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268 iOperationFactory.WriteToLog( _L8( " Default case - Status: %d" ), |
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269 iRequestData->iHttpStatus ); |
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270 #endif |
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271 iCompleted = ETrue; |
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272 break; |
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273 } |
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274 } |
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275 |
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276 // --------------------------------------------------------- |
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277 // CXcapRetrieval::OperationFailedL |
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278 // |
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279 // --------------------------------------------------------- |
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280 // |
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281 void CXcapRetrieval::OperationFailedL() |
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282 { |
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283 #ifdef _DEBUG |
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284 iOperationFactory.WriteToLog( _L8( "CXcapRetrieval::OperationFailedL() - Error: %d" ), |
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285 iStatus.Int() ); |
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286 #endif |
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287 if( iStatus.Int() >= KErrNone ) |
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288 { |
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289 TInt status = iActiveRequest->ResponseData()->iHttpStatus; |
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290 TInt completion = iActiveRequest->ResponseData()->iCompletion; |
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291 iResult = status < KErrNone || completion < KErrNone ? status : ReinterpretStatus( status ); |
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292 } |
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293 else iResult = iStatus.Int(); |
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294 iCompleted = ETrue; |
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295 } |
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296 |
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297 // --------------------------------------------------------- |
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298 // CXcapRetrieval::Result |
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299 // |
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300 // --------------------------------------------------------- |
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301 // |
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302 TInt CXcapRetrieval::Result() const |
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303 { |
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304 return iRequestData->iCompletion; |
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305 } |
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306 |
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307 // --------------------------------------------------------- |
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308 // CXcapRetrieval::~CXcapRetrieval |
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309 // |
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310 // --------------------------------------------------------- |
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311 // |
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312 CXcapRetrieval::~CXcapRetrieval() |
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313 { |
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314 #ifdef _DEBUG |
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315 iOperationFactory.WriteToLog( _L8( "CXcapRetrieval::~CXcapRetrieval()" ) ); |
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316 #endif |
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317 } |
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318 |
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319 // End of File |
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320 |