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1 /* |
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2 * Copyright (c) 2002-2004 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: $Description: $ |
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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 // INCLUDE FILES |
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21 #include "FileCoderB64.h" |
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22 #include <f32file.h> |
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23 #include <imcvcodc.h> |
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24 |
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25 |
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26 // ----------------------------------------------------------------------------- |
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27 // TFileCoderB64::EncodeL() |
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28 // Encode file content to memory |
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29 // ----------------------------------------------------------------------------- |
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30 // |
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31 TInt TFileCoderB64::EncodeL( const TDesC8& aFileName, CBufFlat &aData ) const |
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32 { |
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33 TInt err( KErrNone ); |
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34 TInt size( 0 ); |
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35 |
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36 RFs fs ; |
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37 CleanupClosePushL( fs ); |
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38 |
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39 RFile f ; |
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40 CleanupClosePushL( f ); |
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41 |
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42 User::LeaveIfError ( fs.Connect() ); |
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43 |
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44 TFileName fileName; |
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45 fileName.Copy( aFileName ); // Convert from TDesC8 to TDes16 |
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46 err = f.Open ( fs, fileName, EFileRead ); |
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47 User::LeaveIfError( err ); |
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48 if ( err == KErrNone ) |
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49 { |
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50 err = f.Size( size ); |
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51 } |
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52 |
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53 if ( err == KErrNone ) |
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54 { |
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55 aData.ResizeL( ( size * 4 + 2 ) / 3 ); |
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56 HBufC8 *data = HBufC8::NewLC( size ); |
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57 |
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58 TPtr8 dataPtr( data->Des() ); |
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59 err = f.Read( dataPtr ); |
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60 |
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61 TImCodecB64 B64Coder; |
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62 |
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63 TPtr8 targetPtr( aData.Ptr( 0 ) ); |
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64 B64Coder.Encode( *data, targetPtr ); //target->Des() ); |
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65 |
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66 CleanupStack::PopAndDestroy( data ); // data |
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67 } |
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68 |
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69 CleanupStack::PopAndDestroy( &f ); // f |
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70 CleanupStack::PopAndDestroy( &fs ); // fs |
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71 |
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72 return err; |
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73 } |
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74 |
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75 TInt TFileCoderB64::EncodeL( const TDesC8& aFileName, HBufC8* &aData ) const |
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76 { |
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77 TInt err( KErrNone ); |
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78 TInt size( 0 ); |
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79 |
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80 RFs fs ; |
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81 CleanupClosePushL( fs ); |
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82 |
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83 RFile f ; |
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84 CleanupClosePushL( f ); |
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85 |
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86 User::LeaveIfError ( fs.Connect() ); |
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87 |
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88 TFileName fileName; |
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89 fileName.Copy( aFileName ); // Convert from TDesC8 to TDes16 |
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90 err = f.Open ( fs, fileName, EFileRead ); |
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91 User::LeaveIfError( err ); |
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92 if ( err == KErrNone ) |
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93 { |
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94 err = f.Size( size ); |
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95 } |
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96 |
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97 if ( err == KErrNone ) |
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98 { |
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99 aData = HBufC8::NewLC( ( size * 4 + 2 ) / 3 ); |
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100 HBufC8 *data = HBufC8::NewLC( size ); |
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101 |
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102 TPtr8 dataPtr( data->Des() ); |
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103 err = f.Read( dataPtr ); |
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104 |
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105 TImCodecB64 B64Coder; |
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106 |
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107 TPtr8 targetPtr( aData->Des() ); |
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108 B64Coder.Encode( dataPtr, targetPtr ); //target->Des() ); |
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109 |
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110 CleanupStack::PopAndDestroy( data ); // data |
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111 CleanupStack::Pop( aData ); // aData |
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112 } |
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113 |
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114 CleanupStack::PopAndDestroy( &f ); // f |
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115 CleanupStack::PopAndDestroy( &fs ); // fs |
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116 |
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117 return err; |
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118 } |
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119 |
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120 // ----------------------------------------------------------------------------- |
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121 // TFileCoderB64::DecodeL() |
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122 // Create temporay file and decode data to it |
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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 void TFileCoderB64::DecodeL( const TDesC8& aData, TDes& aFileName ) const |
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128 { |
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129 TInt err( KErrNone ); |
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130 |
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131 RFs fs ; |
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132 CleanupClosePushL( fs ); |
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133 |
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134 RFile f ; |
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135 CleanupClosePushL( f ); |
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136 |
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137 User::LeaveIfError ( fs.Connect() ); |
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138 |
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139 _LIT(KTmpFilePath, "c:\\system\\temp\\"); |
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140 |
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141 err = fs.MkDirAll( KTmpFilePath ); |
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142 //sf- err = f.Temp(fs, KTmpFilePath, aFileName, EFileWrite); |
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143 TFileName buf; |
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144 err = f.Temp(fs, KTmpFilePath, buf, EFileWrite); |
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145 User::LeaveIfError( err ); |
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146 aFileName = buf; |
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147 |
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148 if ( err == KErrNone ) |
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149 { |
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150 } |
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151 |
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152 if ( err == KErrNone ) |
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153 { |
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154 TImCodecB64 B64Coder; |
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155 HBufC8 *target = HBufC8::NewLC( ( aData.Length() * 3 ) / 4 ); |
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156 TPtr8 targetPtr( target->Des() ); |
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157 TBool result = B64Coder.Decode( aData, targetPtr ); |
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158 if( result ) |
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159 { |
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160 User::Leave( KErrNotSupported ); |
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161 } |
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162 |
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163 f.Write ( targetPtr ); |
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164 f.Flush(); |
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165 f.Close(); |
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166 |
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167 CleanupStack::PopAndDestroy( target ); |
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168 } |
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169 |
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170 CleanupStack::PopAndDestroy( &f ); // f |
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171 CleanupStack::PopAndDestroy( &fs ); // fs |
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172 } |
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173 |
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174 |
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175 // ----------------------------------------------------------------------------- |
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176 // TFileCoderB64::DecodeToL() |
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177 // Open/Create/Replace file and decode data to it |
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178 // ----------------------------------------------------------------------------- |
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179 // |
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180 void TFileCoderB64::DecodeToL( const TDesC8& aData, const TDesC& aFileName ) const |
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181 { |
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182 TInt err( KErrNone ); |
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183 |
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184 RFs fs ; |
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185 CleanupClosePushL( fs ); |
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186 |
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187 RFile f ; |
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188 CleanupClosePushL( f ); |
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189 |
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190 User::LeaveIfError ( fs.Connect() ); |
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191 |
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192 err = fs.MkDirAll( aFileName ); |
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193 err = f.Replace( fs, aFileName, EFileWrite ); |
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194 User::LeaveIfError( err ); |
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195 |
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196 if ( err == KErrNone ) |
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197 { |
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198 TImCodecB64 B64Coder; |
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199 HBufC8 *target = HBufC8::NewLC( ( aData.Length() * 3 ) / 4 ); |
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200 TPtr8 targetPtr( target->Des() ); |
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201 TBool result = B64Coder.Decode( aData, targetPtr ); |
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202 if( result ) |
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203 { |
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204 User::Leave( KErrNotSupported ); |
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205 } |
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206 |
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207 f.Write ( targetPtr ); |
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208 f.Flush(); |
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209 f.Close(); |
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210 |
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211 CleanupStack::PopAndDestroy( target ); |
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212 } |
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213 |
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214 CleanupStack::PopAndDestroy( &f ); // f |
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215 CleanupStack::PopAndDestroy( &fs ); // fs |
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216 } |
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217 |
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218 |
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219 TBool TFileCoderB64::CheckB64Encode( const TDesC8& aData ) |
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220 { |
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221 TInt inputIndex = 0; |
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222 TInt inputLen = aData.Length(); |
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223 |
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224 while (inputIndex < inputLen) |
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225 { |
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226 const TUint8& p = aData[ inputIndex ]; |
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227 |
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228 if ((p >= 48 && p <= 57) || |
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229 (p >= 65 && p <= 90) || |
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230 (p >= 97 && p <= 122) || |
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231 p == 43 || p == 47 || |
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232 p == 61 || p == 10 || p == 13 ) |
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233 { |
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234 } |
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235 else |
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236 { |
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237 return EFalse; |
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238 } |
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239 |
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240 inputIndex++; |
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241 |
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242 } |
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243 |
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244 return ETrue; |
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245 } |
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246 // End of File |