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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 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: |
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15 * Implementation of class CCodSaver. |
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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 FILES |
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22 |
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23 #include "CodSaver.h" |
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24 #include "CodPanic.h" |
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25 #include "CodLogger.h" |
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26 #include "CodError.h" |
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27 #include "FileExt.h" |
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28 #include "bautils.h" |
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29 |
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30 |
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31 // ================= CONSTANTS ======================= |
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32 |
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33 /// Response size upper bound multiplier. Used in SetMaxSize(). |
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34 LOCAL_D const TReal KCodOversizeFactor = 1.4; |
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35 /// Response upper bound of response size (10k). Used in SetMaxSize(). |
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36 LOCAL_D const TInt KCodMinUpperBound = 10240; |
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37 |
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38 const TInt KMaxIndexStringLength = 16; // max size of index string "(4294967296)" |
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39 _LIT( KIndexString, "(%d)" ); |
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40 const TInt KDownloadNameMaxSize = 120; |
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41 #define MIN( a, b ) ( (a) < (b) ? (a) : (b) ) |
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42 |
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43 |
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44 // ================= MEMBER FUNCTIONS ======================= |
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45 |
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46 // --------------------------------------------------------- |
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47 // CCodSaver::ConstructL() |
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48 // --------------------------------------------------------- |
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49 // |
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50 void CCodSaver::ConstructL() |
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51 { |
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52 iSourceUri = HBufC8::NewL( 0 ); |
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53 } |
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54 |
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55 // --------------------------------------------------------- |
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56 // CCodSaver::~CCodSaver() |
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57 // --------------------------------------------------------- |
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58 // |
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59 CCodSaver::~CCodSaver() |
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60 { |
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61 delete iSourceUri; |
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62 } |
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63 |
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64 // --------------------------------------------------------- |
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65 // CCodSaver::SetObserver() |
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66 // --------------------------------------------------------- |
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67 // |
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68 void CCodSaver::SetObserver( MCodLoadObserver* aObserver ) |
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69 { |
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70 CLOG(( ECodEng, 2, _L("CCodSaver::SetObserver(0x%x)"), aObserver )); |
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71 //TODO: __ASSERT_ALWAYS( !(aObserver && iObserver), \ |
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72 // CodPanic( ECodObserverAlreadySet ) ); |
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73 iObserver = aObserver; |
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74 } |
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75 |
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76 // --------------------------------------------------------- |
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77 // CCodSaver::CheckMaxSize() |
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78 // --------------------------------------------------------- |
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79 // |
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80 TInt CCodSaver::CheckMaxSize( TInt aDataChunkSize ) |
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81 { |
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82 __ASSERT_DEBUG( aDataChunkSize >= 0, CodPanic( ECodInternal ) ); |
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83 TInt err( KErrNone ); |
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84 if ( iMaxSize && iSize + aDataChunkSize > iMaxSize ) |
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85 { |
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86 err = KErrCodAttributeMismatch; |
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87 CLOG(( ECodEng, 2, _L("CCodSaver::CheckMaxSize %d+%d>%d, fail"), \ |
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88 iSize, aDataChunkSize, iMaxSize )); |
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89 } |
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90 return err; |
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91 } |
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92 |
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93 // --------------------------------------------------------- |
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94 // CCodSaver::SetMaxSize() |
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95 // --------------------------------------------------------- |
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96 // |
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97 void CCodSaver::SetMaxSize( TInt aSize ) |
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98 { |
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99 __ASSERT_DEBUG( aSize >= 0, CodPanic( ECodInternal ) ); |
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100 // Max size is set with allowance, to compensate transport encodings, |
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101 // packaging, and packaging headers. |
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102 iMaxSize = Max( (TInt)(KCodOversizeFactor * aSize), KCodMinUpperBound ); |
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103 } |
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104 |
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105 |
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106 void CCodSaver::AppendStorageInfoL(TPtr8& aBuf)const |
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107 { |
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108 AppendBufL(aBuf,iSourceUri); |
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109 APPEND_BUF_INT(aBuf,iFname); |
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110 APPEND_BUF_INT(aBuf,iSize); |
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111 APPEND_BUF_INT(aBuf,iState); |
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112 APPEND_BUF_INT(aBuf,iHandler); |
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113 } |
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114 |
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115 |
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116 // ----------------------------------------------------------------------------- |
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117 // CCodSaver::ConvertDownloadNameUniqueL |
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118 // ----------------------------------------------------------------------------- |
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119 // |
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120 void CCodSaver::ConvertDownloadNameUniqueL( HBufC*& filePath, |
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121 HBufC*& fileName, |
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122 HBufC*& fileExtn) |
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123 { |
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124 TBool bFound( EFalse ); |
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125 TInt index( 0 ); |
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126 HBufC* uniqueName = NULL; |
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127 HBufC* fullNameTemp = HBufC::NewLC(KMaxFileName); |
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128 TPtr fullNameTempPtr( fullNameTemp->Des() ); |
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129 |
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130 RFs rFs; |
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131 User::LeaveIfError( rFs.Connect() ); |
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132 CleanupClosePushL(rFs); |
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133 |
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134 do |
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135 { |
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136 bFound = EFalse; |
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137 //Generate Unique name. |
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138 CreateIndexedNameL( uniqueName, *fileName, index ); |
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139 |
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140 //Name in \\system\\temp. |
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141 fullNameTempPtr.Copy( *filePath ); |
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142 fullNameTempPtr.Append( *uniqueName ); |
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143 fullNameTempPtr.Append( *fileExtn ); |
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144 |
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145 if( BaflUtils::FileExists( rFs , fullNameTempPtr ) ) |
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146 //Check if file name exist in Destination path. |
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147 { |
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148 bFound =ETrue; |
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149 } |
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150 |
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151 }while( bFound ); |
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152 |
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153 CleanupStack::PopAndDestroy(&rFs); |
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154 CleanupStack::PopAndDestroy(fullNameTemp); |
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155 |
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156 // This is the unique name that we were looking for. |
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157 CleanupStack::PopAndDestroy(fileName); |
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158 fileName = uniqueName; |
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159 CleanupStack::PushL(fileName); |
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160 } |
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161 |
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162 // ----------------------------------------------------------------------------- |
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163 // CCodSaver::CreateIndexedNameL |
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164 // ----------------------------------------------------------------------------- |
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165 // |
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166 void CCodSaver::CreateIndexedNameL( HBufC*& aUniqueName, |
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167 TDesC& aOrgName, |
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168 TInt& aIndex ) |
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169 { |
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170 TPtrC left; |
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171 TBuf<KMaxIndexStringLength> indexStr; |
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172 |
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173 delete aUniqueName; aUniqueName = NULL; |
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174 |
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175 if( aIndex ) |
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176 { |
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177 indexStr.Format( KIndexString, aIndex ); |
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178 } |
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179 |
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180 TInt fullLength = aOrgName.Length() + indexStr.Length(); |
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181 if( fullLength > KMaxPath ) |
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182 // name is longer than KMaxPath. |
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183 { |
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184 User::Leave( KErrGeneral ); |
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185 } |
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186 |
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187 left.Set( aOrgName.Left( KDownloadNameMaxSize - indexStr.Length() )); |
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188 |
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189 aUniqueName = HBufC::NewL( fullLength ); |
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190 aUniqueName->Des().Format( _L("%S%S"), &left, |
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191 &indexStr ); |
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192 |
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193 ++aIndex; |
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194 } |
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195 |
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196 // ----------------------------------------------------------------------------- |
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197 // CCodSaver::FindUniqueDestinationFileNameL |
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198 // ----------------------------------------------------------------------------- |
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199 // |
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200 void CCodSaver::FindUniqueDestinationFileNameL( TDesC& srcFile, HBufC*& destPath ) |
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201 { |
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202 HBufC* fileExtention = HBufC::NewLC(KMaxFileName); |
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203 HBufC* fileName = HBufC::NewLC(KMaxFileName); |
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204 TPtr fileNamePtr( fileName->Des() ); |
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205 |
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206 fileNamePtr = srcFile; |
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207 // Retrieve the file extention. |
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208 TInt dotInd = srcFile.LocateReverse( '.' ); |
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209 if( dotInd != KErrNotFound ) |
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210 // Filename extension found. |
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211 { |
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212 fileExtention->Des().Copy( srcFile.Right( srcFile.Length() - dotInd ) ); |
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213 fileNamePtr.Copy( srcFile.Left( dotInd ) ); |
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214 } |
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215 |
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216 // Retrieve the file name (excluding file extention). |
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217 TInt lastSlashPos = fileNamePtr.LocateReverse( '\\' ); |
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218 if( lastSlashPos != KErrNotFound ) |
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219 // Filename found. |
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220 { |
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221 fileNamePtr.Copy( fileNamePtr.Right( fileNamePtr.Length() - lastSlashPos - 1 ) ); |
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222 } |
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223 |
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224 // Find a unique file name. |
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225 ConvertDownloadNameUniqueL( destPath, fileName, fileExtention ); |
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226 |
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227 // Found. Append file name and extention to destination path. |
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228 destPath->Des().Append( *fileName ); |
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229 destPath->Des().Append( *fileExtention ); |
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230 |
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231 CleanupStack::PopAndDestroy( fileName ); |
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232 CleanupStack::PopAndDestroy( fileExtention ); |
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233 } |