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1 /* |
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2 * Copyright (c) 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 the License "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: Implementation of CHttpCacheStreamHandler |
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15 * |
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16 */ |
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17 |
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18 // INCLUDE FILES |
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19 #include <f32file.h> |
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20 #include "HttpCacheStreamHandler.h" |
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21 #include "HttpCacheEntry.h" |
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22 #include "HttpCacheUtil.h" |
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23 #include "HttpCacheHandler.h" |
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24 #include <centralrepository.h> |
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25 #include <SysUtilDomainCRKeys.h> |
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26 |
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27 // EXTERNAL DATA STRUCTURES |
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28 |
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29 // EXTERNAL FUNCTION PROTOTYPES |
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30 |
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31 // CONSTANTS |
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32 const TInt KHttpCacheActiveCount = 20; |
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33 const TInt KBufferSize = 32768; |
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34 #if 0 |
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35 const TInt KHttpCacheChunkSize = 2048; |
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36 #endif // 0 |
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37 // MACROS |
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38 |
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39 // LOCAL CONSTANTS AND MACROS |
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40 |
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41 // MODULE DATA STRUCTURES |
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42 |
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43 // LOCAL FUNCTION PROTOTYPES |
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44 |
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45 // FORWARD DECLARATIONS |
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46 |
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47 // ============================= LOCAL FUNCTIONS =============================== |
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48 |
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49 // ============================ MEMBER FUNCTIONS =============================== |
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50 |
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51 // ----------------------------------------------------------------------------- |
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52 // CHttpCacheStreamEntry::CHttpCacheStreamEntry |
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53 // C++ default constructor can NOT contain any code, that |
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54 // might leave. |
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55 // ----------------------------------------------------------------------------- |
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56 // |
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57 CHttpCacheStreamEntry::CHttpCacheStreamEntry( |
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58 RFs& aRfs, |
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59 CHttpCacheEntry& aHttpCacheEntry, |
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60 TDriveUnit aDrive, |
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61 TInt64 aCriticalLevel ) |
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62 : iRfs( aRfs ), iHttpCacheEntry( &aHttpCacheEntry ), iDrive( aDrive ), iCriticalLevel( aCriticalLevel ) |
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63 { |
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64 } |
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65 |
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66 // ----------------------------------------------------------------------------- |
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67 // CHttpCacheStreamEntry::ConstructL |
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68 // Symbian 2nd phase constructor can leave. |
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69 // ----------------------------------------------------------------------------- |
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70 // |
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71 void CHttpCacheStreamEntry::ConstructL() |
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72 { |
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73 // consistency check on header/body files |
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74 // open the file or create one |
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75 iFileOk = ( iHttpCacheEntry->State() == CHttpCacheEntry::ECacheUninitialized ? CreateNewFilesL() : OpenCacheFiles() ); |
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76 if( !iFileOk ) |
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77 { |
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78 User::Leave( KErrCorrupt ); |
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79 } |
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80 else if( iFileOk && iHttpCacheEntry->State() == CHttpCacheEntry::ECacheUninitialized ) |
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81 { |
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82 iHttpCacheEntry->SetState( CHttpCacheEntry::ECacheInitialized ); |
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83 } |
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84 iCacheBuffer = HBufC8::NewL( KBufferSize ); |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // CHttpCacheStreamEntry::NewL |
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89 // Two-phased constructor. |
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90 // ----------------------------------------------------------------------------- |
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91 // |
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92 CHttpCacheStreamEntry* CHttpCacheStreamEntry::NewL( |
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93 RFs& aRfs, |
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94 CHttpCacheEntry& aHttpCacheEntry, |
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95 TDriveUnit aDrive, |
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96 TInt64 aCriticalLevel ) |
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97 { |
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98 CHttpCacheStreamEntry* self = new( ELeave ) CHttpCacheStreamEntry( aRfs, |
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99 aHttpCacheEntry, aDrive, aCriticalLevel ); |
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100 |
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101 CleanupStack::PushL( self ); |
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102 self->ConstructL(); |
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103 CleanupStack::Pop(); |
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104 |
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105 return self; |
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106 } |
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107 |
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108 // Destructor |
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109 CHttpCacheStreamEntry::~CHttpCacheStreamEntry() |
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110 { |
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111 // commit changes |
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112 if( iFileOk ) |
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113 { |
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114 iHeaderFile.Close(); |
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115 iBodyFile.Close(); |
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116 } |
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117 delete iCacheBuffer; |
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118 } |
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119 |
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120 // ----------------------------------------------------------------------------- |
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121 // CHttpCacheStreamEntry::Erase |
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122 // |
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123 // ----------------------------------------------------------------------------- |
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124 // |
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125 void CHttpCacheStreamEntry::Erase() |
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126 { |
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127 // |
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128 HttpCacheUtil::WriteUrlToLog( 0, _L( "erase files associated with" ), iHttpCacheEntry->Url() ); |
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129 iHeaderFile.Close(); |
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130 iBodyFile.Close(); |
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131 // dont care about return vales |
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132 // as we cannot do much |
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133 TFileName bodyFileName; |
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134 // get body filename |
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135 BodyFileName( bodyFileName ); |
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136 |
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137 TFileName headerFileName; |
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138 HttpCacheUtil::GetHeaderFileName( bodyFileName, headerFileName ); |
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139 // |
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140 TInt status; |
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141 status = iRfs.Delete( bodyFileName ); |
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142 HttpCacheUtil::WriteLog( 0, bodyFileName, status ); |
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143 // |
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144 status = iRfs.Delete( headerFileName ); |
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145 HttpCacheUtil::WriteLog( 0, headerFileName, status ); |
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146 // do not close them twice |
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147 iFileOk = EFalse; |
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148 } |
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149 |
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150 // ----------------------------------------------------------------------------- |
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151 // CHttpCacheStreamEntry::HeadersL |
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152 // |
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153 // ----------------------------------------------------------------------------- |
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154 // |
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155 HBufC8* CHttpCacheStreamEntry::HeadersL() |
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156 { |
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157 // |
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158 HBufC8* headerStr = NULL; |
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159 TInt headerLen( 0 ); |
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160 TInt err( iHeaderFile.Size( headerLen ) ); |
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161 // |
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162 if( err == KErrNone && headerLen > 0 ) |
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163 { |
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164 headerStr = HBufC8::NewL( headerLen ); |
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165 TPtr8 ptr( headerStr->Des() ); |
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166 // read headers |
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167 iHeaderFile.Read( 0, ptr, headerLen ); |
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168 } |
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169 return headerStr; |
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170 } |
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171 |
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172 // ----------------------------------------------------------------------------- |
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173 // CHttpCacheStreamEntry::NextChunkL |
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174 // |
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175 // ----------------------------------------------------------------------------- |
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176 // |
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177 HBufC8* CHttpCacheStreamEntry::NextChunkL( |
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178 TBool& aLastChunk ) |
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179 { |
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180 HBufC8* bodyStr = NULL; |
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181 #if 0 |
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182 // incremental chunk handling |
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183 TInt size; |
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184 TInt contentSize( iBodyFile.Size( size ) ); |
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185 size = Min( KHttpCacheChunkSize, contentSize ); |
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186 |
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187 bodyStr = HBufC8::NewL( size ); |
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188 TPtr8 ptr( bodyStr->Des() ); |
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189 // |
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190 iBodyFile.Read( ptr, size ); |
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191 // check if we are at the end of the file |
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192 aLastChunk = ( bodyStr->Length() != size ); |
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193 #else // 0 |
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194 // read body |
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195 TInt size; |
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196 TInt err( iBodyFile.Size( size ) ); |
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197 if( err == KErrNone && size > 0 ) |
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198 { |
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199 bodyStr = HBufC8::NewL( size ); |
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200 TPtr8 ptr( bodyStr->Des() ); |
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201 // |
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202 iBodyFile.Read( ptr, size ); |
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203 } |
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204 aLastChunk = ETrue; |
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205 #endif // 0 |
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206 return bodyStr; |
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207 } |
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208 |
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209 // ----------------------------------------------------------------------------- |
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210 // CHttpCacheStreamEntry::SaveHeaders |
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211 // |
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212 // ----------------------------------------------------------------------------- |
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213 // |
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214 TInt CHttpCacheStreamEntry::SaveHeaders( |
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215 const TDesC8& aHeaderStr ) |
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216 { |
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217 TInt save( KErrNone ); |
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218 |
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219 if( aHeaderStr.Length() ) |
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220 { |
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221 // below critical level |
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222 TBool below( ETrue ); |
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223 |
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224 below = DiskSpaceBelowCriticalLevel( aHeaderStr.Length() ); |
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225 |
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226 if( !below ) |
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227 { |
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228 // save headers |
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229 // Don't force a flush, as the File Server takes care of write and read consistency. |
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230 iHttpCacheEntry->SetHeaderSize( aHeaderStr.Length() ); |
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231 save = iHeaderFile.Write( aHeaderStr ); |
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232 } |
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233 else |
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234 { |
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235 save = KErrDiskFull; |
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236 } |
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237 } |
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238 return save; |
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239 } |
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240 |
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241 // ----------------------------------------------------------------------------- |
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242 // CHttpCacheStreamEntry::RemoveHeaders |
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243 // |
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244 // ----------------------------------------------------------------------------- |
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245 // |
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246 void CHttpCacheStreamEntry::RemoveHeaders() |
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247 { |
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248 // destroy data |
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249 iHeaderFile.SetSize( 0 ); |
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250 iHttpCacheEntry->SetHeaderSize( 0 ); |
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251 } |
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252 |
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253 // ----------------------------------------------------------------------------- |
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254 // CHttpCacheStreamEntry::SaveBodyData |
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255 // |
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256 // ----------------------------------------------------------------------------- |
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257 // |
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258 TInt CHttpCacheStreamEntry::SaveBodyData( |
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259 const TDesC8& aBodyStr ) |
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260 { |
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261 TBool save( KErrNone ); |
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262 TInt bodyLength( aBodyStr.Length() ); |
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263 |
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264 if( bodyLength ) |
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265 { |
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266 TPtr8 buffer( iCacheBuffer->Des() ); |
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267 if( buffer.Length() + bodyLength > buffer.MaxLength() ) |
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268 { |
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269 // |
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270 HBufC8* overflowBuffer = NULL; |
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271 TInt cut( -1 ); |
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272 // running out of space |
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273 TPtrC8 writePtr; |
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274 if( buffer.Length() == 0 ) |
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275 { |
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276 // buffer is empty and the body is bigger than the buffer |
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277 writePtr.Set( aBodyStr ); |
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278 } |
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279 else |
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280 { |
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281 cut = buffer.MaxLength() - buffer.Length(); |
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282 // enough space for the leftover? |
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283 if( bodyLength - cut > buffer.MaxLength() ) |
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284 { |
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285 // not enough |
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286 // put the buffer and the body together and |
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287 // write it in one go. |
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288 overflowBuffer = HBufC8::New( buffer.Length() + bodyLength ); |
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289 if( !overflowBuffer ) |
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290 { |
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291 return KErrNoMemory; |
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292 } |
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293 TPtr8 overflowPtr( overflowBuffer->Des() ); |
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294 overflowPtr.Copy( buffer ); |
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295 overflowPtr.Append( aBodyStr ); |
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296 writePtr.Set( overflowBuffer->Des() ); |
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297 // empty buffer |
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298 buffer.Zero(); |
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299 // no leftover left |
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300 cut = -1; |
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301 } |
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302 else |
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303 { |
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304 // fill the 32k |
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305 buffer.Append( aBodyStr.Left( cut ) ); |
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306 writePtr.Set( buffer ); |
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307 } |
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308 } |
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309 |
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310 // write to the disk |
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311 TBool below; |
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312 below = DiskSpaceBelowCriticalLevel( writePtr.Length() ); |
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313 |
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314 if( !below ) |
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315 { |
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316 // write body |
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317 save = iBodyFile.Write( writePtr ); |
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318 } |
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319 else |
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320 { |
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321 save = KErrDiskFull; |
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322 // reset buffers |
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323 buffer.Zero(); |
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324 } |
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325 // |
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326 if( save == KErrNone && cut >= 0 ) |
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327 { |
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328 // copy the leftover in to the buffer |
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329 buffer.Copy( aBodyStr.Mid( cut ) ); |
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330 } |
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331 delete overflowBuffer; |
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332 } |
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333 else |
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334 { |
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335 buffer.Append( aBodyStr ); |
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336 save = KErrNone; |
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337 } |
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338 // update size information |
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339 iHttpCacheEntry->SetSize( iHttpCacheEntry->Size() + bodyLength ); |
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340 } |
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341 return save; |
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342 } |
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343 |
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344 // ----------------------------------------------------------------------------- |
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345 // CHttpCacheStreamEntry::RemoveBodyData |
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346 // |
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347 // ----------------------------------------------------------------------------- |
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348 // |
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349 void CHttpCacheStreamEntry::RemoveBodyData() |
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350 { |
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351 // destroy data |
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352 iCacheBuffer->Des().Zero(); |
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353 iBodyFile.SetSize( 0 ); |
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354 iHttpCacheEntry->SetSize( 0 ); |
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355 } |
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356 |
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357 // ----------------------------------------------------------------------------- |
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358 // CHttpCacheStreamEntry::Flush |
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359 // |
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360 // ----------------------------------------------------------------------------- |
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361 // |
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362 TInt CHttpCacheStreamEntry::Flush() |
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363 { |
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364 TInt saveOk( KErrNone ); |
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365 |
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366 if( iCacheBuffer->Length() ) |
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367 { |
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368 TPtr8 bufferPtr( iCacheBuffer->Des() ); |
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369 |
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370 TBool below; |
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371 below = DiskSpaceBelowCriticalLevel( bufferPtr.Length() ); |
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372 |
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373 if( !below ) |
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374 { |
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375 // append body |
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376 saveOk = iBodyFile.Write( bufferPtr ); |
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377 } |
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378 else |
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379 { |
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380 saveOk = KErrDiskFull; |
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381 } |
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382 bufferPtr.Zero(); |
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383 } |
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384 return saveOk; |
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385 } |
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386 |
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387 // ----------------------------------------------------------------------------- |
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388 // CHttpCacheStreamEntry::OpenCacheFiles |
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389 // |
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390 // ----------------------------------------------------------------------------- |
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391 // |
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392 TBool CHttpCacheStreamEntry::OpenCacheFiles() |
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393 { |
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394 TInt statusHeader; |
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395 TInt statusBody; |
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396 // |
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397 TFileName bodyFileName; |
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398 // get body filename |
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399 BodyFileName( bodyFileName ); |
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400 // header filename |
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401 TFileName headerFileName; |
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402 // |
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403 HttpCacheUtil::GetHeaderFileName( bodyFileName, headerFileName ); |
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404 |
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405 statusHeader = iHeaderFile.Open( iRfs, headerFileName, EFileShareExclusive | EFileWrite ); |
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406 statusBody = iBodyFile.Open( iRfs, bodyFileName, EFileShareExclusive | EFileWrite ); |
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407 return ( statusHeader == KErrNone && statusBody == KErrNone ); |
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408 } |
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409 |
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410 // ----------------------------------------------------------------------------- |
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411 // CHttpCacheStreamEntry::CreateNewFilesL |
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412 // |
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413 // ----------------------------------------------------------------------------- |
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414 // |
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415 TBool CHttpCacheStreamEntry::CreateNewFilesL() |
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416 { |
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417 TInt statusHeader( KErrNotFound ); |
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418 TInt statusBody( KErrNotFound ); |
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419 TPath sessionPath; |
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420 User::LeaveIfError( iRfs.SessionPath( sessionPath ) ); |
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421 |
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422 //Given the full URL, generates a fully qualified path for saving the HTTP response |
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423 HBufC* bodyFileName = HttpCacheUtil::GenerateNameLC( iHttpCacheEntry->Url(), sessionPath ); |
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424 TPtrC bodyFileNamePtr( *bodyFileName ); |
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425 // get header file name |
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426 TFileName headerFileName; |
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427 HttpCacheUtil::GetHeaderFileName( bodyFileNamePtr, headerFileName ); |
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428 |
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429 // create a file or replace if it exists. |
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430 statusBody = iBodyFile.Replace( iRfs, bodyFileNamePtr, EFileShareExclusive | EFileWrite ); |
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431 if( statusBody == KErrNone ) |
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432 { |
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433 // header file should not fail |
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434 statusHeader = iHeaderFile.Replace( iRfs, headerFileName, EFileShareExclusive | EFileWrite ); |
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435 } |
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436 // |
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437 TBool fileOk( statusHeader == KErrNone && statusBody == KErrNone ); |
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438 #ifdef __CACHELOG__ |
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439 HttpCacheUtil::WriteUrlToLog( 0, bodyFileNamePtr, iHttpCacheEntry->Url() ); |
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440 #endif |
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441 |
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442 // |
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443 if( fileOk ) |
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444 { |
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445 iHttpCacheEntry->SetFileNameL( bodyFileNamePtr ); |
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446 #ifdef __CACHELOG__ |
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447 HttpCacheUtil::WriteUrlToLog( 0, _L8("files are fine") ); |
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448 #endif |
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449 } |
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450 else |
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451 { |
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452 // corrupt entry. delete the file |
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453 if( statusBody == KErrNone ) |
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454 { |
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455 iRfs.Delete( bodyFileNamePtr ); |
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456 } |
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457 // ??? |
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458 __ASSERT_DEBUG( EFalse, |
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459 User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
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460 } |
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461 CleanupStack::PopAndDestroy( bodyFileName ); |
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462 return fileOk; |
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463 } |
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464 |
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465 // ----------------------------------------------------------------------------- |
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466 // CHttpCacheStreamEntry::BodyFileName |
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467 // |
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468 // ----------------------------------------------------------------------------- |
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469 // |
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470 void CHttpCacheStreamEntry::BodyFileName( |
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471 TFileName& aBodyFileName ) |
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472 { |
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473 TFileName bodyFileName; |
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474 aBodyFileName.Copy( iHttpCacheEntry->Filename() ); |
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475 } |
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476 |
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477 // ----------------------------------------------------------------------------- |
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478 // CHttpCacheStreamEntry::BodyFileName |
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479 // |
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480 // ----------------------------------------------------------------------------- |
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481 // |
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482 TBool CHttpCacheStreamEntry::DiskSpaceBelowCriticalLevel( |
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483 TInt aContentSize ) |
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484 { |
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485 TVolumeInfo vinfo; |
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486 TInt errorCode = iRfs.Volume( vinfo, iDrive ); |
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487 |
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488 return( errorCode != KErrNone || ( vinfo.iFree - aContentSize ) <= iCriticalLevel ); |
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489 } |
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490 |
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491 // ----------------------------------------------------------------------------- |
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492 // CHttpCacheStreamHandler::CHttpCacheStreamHandler |
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493 // C++ default constructor can NOT contain any code, that |
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494 // might leave. |
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495 // ----------------------------------------------------------------------------- |
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496 // |
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497 CHttpCacheStreamHandler::CHttpCacheStreamHandler() : iDiskFull( EFalse ) |
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498 { |
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499 // change the iDiskFull back to false if somebody freed some disk space. |
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500 } |
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501 |
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502 // ----------------------------------------------------------------------------- |
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503 // CHttpCacheStreamHandler::ConstructL |
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504 // Symbian 2nd phase constructor can leave. |
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505 // ----------------------------------------------------------------------------- |
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506 // |
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507 void CHttpCacheStreamHandler::ConstructL( |
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508 const TDesC& aDirectory, |
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509 TInt aCriticalLevel ) |
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510 { |
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511 User::LeaveIfError( iRfs.Connect() ); |
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512 // set path for the entries |
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513 iRfs.SetSessionPath( aDirectory ); |
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514 iActiveEntries = new( ELeave )CArrayPtrFlat<CHttpCacheStreamEntry>( KHttpCacheActiveCount ); |
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515 // get drive letter for sysutil |
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516 TParsePtrC pathParser( aDirectory ); |
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517 iDrive = pathParser.Drive(); |
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518 iCriticalLevel = aCriticalLevel; |
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519 } |
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520 |
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521 // ----------------------------------------------------------------------------- |
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522 // CHttpCacheStreamHandler::NewL |
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523 // Two-phased constructor. |
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524 // ----------------------------------------------------------------------------- |
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525 // |
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526 CHttpCacheStreamHandler* CHttpCacheStreamHandler::NewL( |
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527 const TDesC& aDirectory , |
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528 TInt aCriticalLevel) |
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529 { |
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530 CHttpCacheStreamHandler* self = new( ELeave ) CHttpCacheStreamHandler(); |
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531 |
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532 CleanupStack::PushL( self ); |
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533 self->ConstructL( aDirectory , aCriticalLevel); |
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534 CleanupStack::Pop(); |
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535 |
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536 return self; |
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537 } |
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538 |
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539 // Destructor |
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540 CHttpCacheStreamHandler::~CHttpCacheStreamHandler() |
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541 { |
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542 if( iActiveEntries ) |
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543 { |
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544 iActiveEntries->ResetAndDestroy(); |
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545 } |
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546 delete iActiveEntries; |
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547 iRfs.Close(); |
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548 } |
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549 |
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550 // ----------------------------------------------------------------------------- |
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551 // CHttpCacheStreamHandler::AttachL |
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552 // |
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553 // ----------------------------------------------------------------------------- |
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554 // |
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555 TBool CHttpCacheStreamHandler::AttachL( |
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556 CHttpCacheEntry& aCacheEntry ) |
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557 { |
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558 #ifdef __CACHELOG__ |
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559 // check for duplicates |
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560 for( TInt i = 0; i < iActiveEntries->Count(); i++ ) |
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561 { |
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562 __ASSERT_DEBUG( iActiveEntries->At( i )->CacheEntry() != &aCacheEntry, |
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563 User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
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564 } |
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565 #endif // __CACHELOG__ |
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566 TBool attached( ETrue ); |
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567 // create and save stream entry |
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568 CHttpCacheStreamEntry* streamEntry = NULL; |
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569 |
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570 TRAPD( err, streamEntry = CHttpCacheStreamEntry::NewL( iRfs, aCacheEntry, iDrive, iCriticalLevel ) ); |
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571 if( err == KErrCorrupt ) |
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572 { |
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573 // |
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574 attached = EFalse; |
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575 } |
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576 else if( err == KErrNoMemory ) |
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577 { |
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578 User::Leave( err ); |
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579 } |
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580 else if( streamEntry ) |
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581 { |
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582 iActiveEntries->AppendL( streamEntry ); |
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583 } |
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584 return attached; |
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585 } |
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586 |
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587 // ----------------------------------------------------------------------------- |
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588 // CHttpCacheStreamHandler::Detach |
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589 // |
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590 // ----------------------------------------------------------------------------- |
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591 // |
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592 void CHttpCacheStreamHandler::Detach( |
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593 const CHttpCacheEntry& aCacheEntry ) |
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594 { |
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595 TInt index; |
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596 CHttpCacheStreamEntry* streamEntry = FindStreamEntry( aCacheEntry, &index ); |
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597 __ASSERT_DEBUG( streamEntry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
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598 |
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599 if( streamEntry ) |
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600 { |
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601 delete streamEntry; |
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602 iActiveEntries->Delete( index ); |
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603 } |
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604 } |
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605 |
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606 // ----------------------------------------------------------------------------- |
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607 // CHttpCacheStreamHandler::Erase |
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608 // |
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609 // ----------------------------------------------------------------------------- |
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610 // |
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611 void CHttpCacheStreamHandler::Erase( |
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612 const CHttpCacheEntry& aCacheEntry ) |
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613 { |
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614 TInt index; |
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615 CHttpCacheStreamEntry* streamEntry = FindStreamEntry( aCacheEntry, &index ); |
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616 __ASSERT_DEBUG( streamEntry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
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617 |
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618 if( streamEntry ) |
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619 { |
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620 streamEntry->Erase(); |
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621 // |
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622 iContentSize-=aCacheEntry.Size(); |
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623 iContentSize-=aCacheEntry.HeaderSize(); |
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624 } |
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625 } |
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626 |
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627 // ----------------------------------------------------------------------------- |
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628 // CHttpCacheStreamHandler::HeadersL |
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629 // |
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630 // ----------------------------------------------------------------------------- |
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631 // |
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632 HBufC8* CHttpCacheStreamHandler::HeadersL( |
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633 CHttpCacheEntry& aCacheEntry ) |
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634 { |
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635 CHttpCacheStreamEntry* entry = FindStreamEntry( aCacheEntry ); |
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636 HBufC8* headerStr = NULL; |
|
637 // |
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638 __ASSERT_DEBUG( entry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
|
639 // |
|
640 if( entry ) |
|
641 { |
|
642 headerStr = entry->HeadersL(); |
|
643 } |
|
644 return headerStr; |
|
645 } |
|
646 |
|
647 // ----------------------------------------------------------------------------- |
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648 // CHttpCacheStreamHandler::NextChunkL |
|
649 // |
|
650 // ----------------------------------------------------------------------------- |
|
651 // |
|
652 HBufC8* CHttpCacheStreamHandler::NextChunkL( |
|
653 CHttpCacheEntry& aCacheEntry, |
|
654 TBool& aLastChunk ) |
|
655 { |
|
656 // |
|
657 CHttpCacheStreamEntry* entry = FindStreamEntry( aCacheEntry ); |
|
658 HBufC8* bodyStr = NULL; |
|
659 // |
|
660 __ASSERT_DEBUG( entry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
|
661 // |
|
662 if( entry ) |
|
663 { |
|
664 bodyStr = entry->NextChunkL( aLastChunk ); |
|
665 } |
|
666 return bodyStr; |
|
667 } |
|
668 |
|
669 // ----------------------------------------------------------------------------- |
|
670 // CHttpCacheStreamHandler::SaveHeaders |
|
671 // |
|
672 // ----------------------------------------------------------------------------- |
|
673 // |
|
674 TBool CHttpCacheStreamHandler::SaveHeaders( |
|
675 CHttpCacheEntry& aCacheEntry, |
|
676 const TDesC8& aHeaderStr ) |
|
677 { |
|
678 TBool saved( KErrGeneral ); |
|
679 if( !iDiskFull ) |
|
680 { |
|
681 CHttpCacheStreamEntry* entry = FindStreamEntry( aCacheEntry ); |
|
682 // |
|
683 __ASSERT_DEBUG( entry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
|
684 // |
|
685 if( entry ) |
|
686 { |
|
687 saved = entry->SaveHeaders( aHeaderStr ); |
|
688 // update content size in cache |
|
689 if( saved == KErrNone ) |
|
690 { |
|
691 iContentSize+=aHeaderStr.Length(); |
|
692 } |
|
693 else if( saved == KErrDiskFull ) |
|
694 { |
|
695 iDiskFull = ETrue; |
|
696 } |
|
697 } |
|
698 } |
|
699 return( saved == KErrNone ); |
|
700 } |
|
701 |
|
702 // ----------------------------------------------------------------------------- |
|
703 // CHttpCacheStreamHandler::RemoveHeaders |
|
704 // |
|
705 // ----------------------------------------------------------------------------- |
|
706 // |
|
707 void CHttpCacheStreamHandler::RemoveHeaders( |
|
708 CHttpCacheEntry& aCacheEntry ) |
|
709 { |
|
710 CHttpCacheStreamEntry* entry = FindStreamEntry( aCacheEntry ); |
|
711 // |
|
712 __ASSERT_DEBUG( entry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
|
713 // |
|
714 if( entry ) |
|
715 { |
|
716 iContentSize-=aCacheEntry.HeaderSize(); |
|
717 entry->RemoveHeaders(); |
|
718 } |
|
719 } |
|
720 |
|
721 // ----------------------------------------------------------------------------- |
|
722 // CHttpCacheStreamHandler::SaveBodyData |
|
723 // |
|
724 // ----------------------------------------------------------------------------- |
|
725 // |
|
726 TBool CHttpCacheStreamHandler::SaveBodyData( |
|
727 CHttpCacheEntry& aCacheEntry, |
|
728 const TDesC8& aBodyStr ) |
|
729 { |
|
730 TInt saved( KErrGeneral ); |
|
731 if( !iDiskFull ) |
|
732 { |
|
733 CHttpCacheStreamEntry* entry = FindStreamEntry( aCacheEntry ); |
|
734 // |
|
735 __ASSERT_DEBUG( entry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
|
736 // |
|
737 if( entry ) |
|
738 { |
|
739 saved = entry->SaveBodyData( aBodyStr ); |
|
740 if( saved == KErrNone ) |
|
741 { |
|
742 iContentSize+=aBodyStr.Length(); |
|
743 } |
|
744 else if( saved == KErrDiskFull ) |
|
745 { |
|
746 iDiskFull = ETrue; |
|
747 } |
|
748 } |
|
749 } |
|
750 return( saved == KErrNone ); |
|
751 } |
|
752 |
|
753 // ----------------------------------------------------------------------------- |
|
754 // CHttpCacheStreamHandler::RemoveBodyData |
|
755 // |
|
756 // ----------------------------------------------------------------------------- |
|
757 // |
|
758 void CHttpCacheStreamHandler::RemoveBodyData( |
|
759 CHttpCacheEntry& aCacheEntry ) |
|
760 { |
|
761 CHttpCacheStreamEntry* entry = FindStreamEntry( aCacheEntry ); |
|
762 // |
|
763 __ASSERT_DEBUG( entry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
|
764 // |
|
765 if( entry ) |
|
766 { |
|
767 iContentSize-=aCacheEntry.Size(); |
|
768 entry->RemoveBodyData(); |
|
769 } |
|
770 } |
|
771 |
|
772 // ----------------------------------------------------------------------------- |
|
773 // CHttpCacheStreamHandler::Flush |
|
774 // |
|
775 // ----------------------------------------------------------------------------- |
|
776 // |
|
777 TBool CHttpCacheStreamHandler::Flush( |
|
778 CHttpCacheEntry& aCacheEntry ) |
|
779 { |
|
780 TInt saved( KErrGeneral ); |
|
781 if( !iDiskFull ) |
|
782 { |
|
783 CHttpCacheStreamEntry* entry = FindStreamEntry( aCacheEntry ); |
|
784 // |
|
785 __ASSERT_DEBUG( entry != NULL, User::Panic( _L("cacheHandler Panic"), KErrCorrupt ) ); |
|
786 // |
|
787 if( entry ) |
|
788 { |
|
789 saved = entry->Flush(); |
|
790 // |
|
791 if( saved == KErrDiskFull ) |
|
792 { |
|
793 iDiskFull = ETrue; |
|
794 } |
|
795 } |
|
796 } |
|
797 return( saved == KErrNone ); |
|
798 } |
|
799 |
|
800 // ----------------------------------------------------------------------------- |
|
801 // CHttpCacheStreamHandler::FindStreamEntry |
|
802 // |
|
803 // ----------------------------------------------------------------------------- |
|
804 // |
|
805 CHttpCacheStreamEntry* CHttpCacheStreamHandler::FindStreamEntry( |
|
806 const CHttpCacheEntry& aCacheEntry, |
|
807 TInt* aIndex ) |
|
808 { |
|
809 CHttpCacheStreamEntry* streamEntry = NULL; |
|
810 |
|
811 for( TInt i = 0; i < iActiveEntries->Count(); i++ ) |
|
812 { |
|
813 CHttpCacheStreamEntry* entry = iActiveEntries->At( i ); |
|
814 |
|
815 if( entry && entry->CacheEntry() == &aCacheEntry ) |
|
816 { |
|
817 streamEntry = entry; |
|
818 if( aIndex ) |
|
819 { |
|
820 *aIndex = i; |
|
821 } |
|
822 break; |
|
823 } |
|
824 } |
|
825 return streamEntry; |
|
826 } |
|
827 |
|
828 // End of File |