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1 /* |
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2 * Copyright (c) 2007 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: Class used to check the protection of the |
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15 * media files. |
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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 |
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22 // INCLUDE FILES |
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23 |
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24 #include "mediafileprotection.h" |
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25 #include "mediafilelist.h" |
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26 #include "mediafilelistdebug.h" |
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27 #include <mediafilelist.rsg> |
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28 |
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29 #include <DRMCommon.h> |
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30 #include <drmutility.h> |
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31 #include <drmagents.h> |
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32 #include <bautils.h> |
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33 #include <StringLoader.h> |
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34 |
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35 |
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36 |
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37 /****************************************************************************** |
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38 * class CMFProtectionHandler |
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39 ******************************************************************************/ |
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40 |
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41 // ----------------------------------------------------------------------------- |
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42 // CMFProtectionHandler::NewL |
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43 // |
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44 // ----------------------------------------------------------------------------- |
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45 CMFProtectionHandler* CMFProtectionHandler::NewL() |
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46 { |
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47 CMFProtectionHandler* self = new (ELeave) CMFProtectionHandler(); |
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48 CleanupStack::PushL(self); |
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49 self->ConstructL(); |
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50 CleanupStack::Pop(self); |
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51 |
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52 return self; |
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53 } |
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54 |
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55 |
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56 // ----------------------------------------------------------------------------- |
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57 // CMFProtectionHandler::CMFProtectionHandler |
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58 // |
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59 // ----------------------------------------------------------------------------- |
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60 // |
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61 CMFProtectionHandler::CMFProtectionHandler() |
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62 { |
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63 iMaxFileSize = KErrNotFound; |
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64 } |
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65 |
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66 |
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67 // ----------------------------------------------------------------------------- |
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68 // CMFProtectionHandler::CMFProtectionHandler |
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69 // |
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70 // ----------------------------------------------------------------------------- |
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71 // |
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72 void CMFProtectionHandler::ConstructL() |
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73 { |
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74 iDriveUtil = CDriveUtil::NewL(); |
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75 iVariation = CMediaFileDialogVariation::NewL(); |
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76 |
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77 iDRMHelper = CDRMHelper::NewL( *CCoeEnv::Static() ); |
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78 |
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79 iDRMCommon = DRMCommon::NewL(); |
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80 User::LeaveIfError( iDRMCommon->Connect() ); |
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81 |
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82 iExcludedMimeTypes = CMimeTypeList::NewL(); |
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83 |
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84 User::LeaveIfError( iApaLsSession.Connect() ); |
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85 User::LeaveIfError( iFsSession.Connect() ); |
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86 } |
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87 |
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88 |
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89 // ---------------------------------------------------------------------------- |
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90 // Destructor |
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91 // |
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92 // ---------------------------------------------------------------------------- |
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93 // |
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94 CMFProtectionHandler::~CMFProtectionHandler() |
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95 { |
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96 delete iDriveUtil; |
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97 delete iVariation; |
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98 |
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99 delete iDRMHelper; |
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100 |
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101 if ( iDRMCommon ) |
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102 { |
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103 iDRMCommon->Disconnect(); // ignore possible error |
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104 delete iDRMCommon; |
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105 } |
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106 |
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107 delete iExcludedMimeTypes; |
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108 iApaLsSession.Close(); |
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109 iFsSession.Close(); |
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110 } |
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111 |
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112 |
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113 // ----------------------------------------------------------------------------- |
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114 // CMFProtectionHandler::SetAttr |
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115 // |
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116 // ----------------------------------------------------------------------------- |
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117 void CMFProtectionHandler::SetAttrL( TInt aAttr, TInt aValue ) |
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118 { |
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119 switch ( aAttr ) |
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120 { |
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121 case CMediaFileList::EAttrFileSize: |
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122 { |
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123 iMaxFileSize = aValue; |
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124 break; |
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125 } |
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126 case CMediaFileList::EAttrAutomatedType: |
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127 { |
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128 iAutomatedType = (CDRMHelper::TDRMHelperAutomatedType) aValue; |
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129 break; |
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130 } |
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131 |
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132 default: |
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133 { |
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134 break; |
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135 } |
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136 } |
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137 } |
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138 |
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139 |
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140 // ----------------------------------------------------------------------------- |
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141 // CMFProtectionHandler::SetAttrL |
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142 // |
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143 // ----------------------------------------------------------------------------- |
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144 void CMFProtectionHandler::SetAttrL( TInt aAttr, const TDesC& aValue ) |
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145 { |
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146 if ( aAttr == CMediaFileList::EAttrExcludeMimeType ) |
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147 { |
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148 if ( aValue.Length() > KMaxFileName || aValue.Length() == 0 ) |
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149 { |
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150 User::Leave( KErrArgument ); |
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151 } |
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152 |
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153 iExcludedMimeTypes->AddMimeTypeL( aValue ); |
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154 } |
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155 } |
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156 |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // CMFProtectionHandler::IsVideoValid |
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160 // |
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161 // ----------------------------------------------------------------------------- |
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162 // |
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163 TBool CMFProtectionHandler::IsVideoValid( const TDesC& aFileName, |
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164 TIntention aIntention ) |
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165 { |
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166 TInt err = KErrNone; |
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167 TBool ret = EFalse; |
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168 |
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169 TRAP( err, ret = IsVideoValidL (aFileName, aIntention ) ) |
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170 |
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171 if ( err != KErrNone ) |
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172 { |
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173 return EFalse; // in case of error file is not valid |
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174 } |
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175 |
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176 return ret; |
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177 } |
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178 |
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179 |
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180 // ----------------------------------------------------------------------------- |
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181 // CMFProtectionHandler::IsVideoValidL |
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182 // |
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183 // ----------------------------------------------------------------------------- |
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184 // |
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185 TBool CMFProtectionHandler::IsVideoValidL( const TDesC& aFileName, |
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186 TIntention /*aIntention*/ ) |
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187 { |
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188 TBuf<KMaxDataTypeLength> dataType( DataTypeL( aFileName ).Des() ); |
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189 |
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190 if ( iExcludedMimeTypes->FindMimeTypeL( dataType ) ) |
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191 { |
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192 return EFalse; |
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193 } |
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194 |
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195 CContent* content = CContent::NewLC( aFileName, |
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196 EContentShareReadWrite ); |
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197 TInt deliveryMethod = 0; |
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198 content->GetAttribute( EDeliveryMethod, deliveryMethod ); |
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199 |
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200 CleanupStack::PopAndDestroy( content ); |
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201 |
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202 if( deliveryMethod == EOmaDrm2 ) |
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203 { |
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204 // if video it is OMA DRM 2 protected, it cannot be previewed |
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205 return EFalse; |
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206 } |
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207 return ETrue; |
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208 } |
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209 |
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210 |
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211 // ----------------------------------------------------------------------------- |
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212 // CMFProtectionHandler::IsFileValid |
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213 // |
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214 // Checks protection state of media file. If this function returns EFalse, |
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215 // media file cannot be used for playing/selection. |
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216 // |
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217 // ----------------------------------------------------------------------------- |
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218 // |
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219 TBool CMFProtectionHandler::IsFileValid( const TDesC& aFileName, |
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220 TIntention aIntention ) |
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221 { |
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222 TInt err = KErrNone; |
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223 TBool ret = EFalse; |
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224 |
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225 TRAP( err, ret = IsFileValidL (aFileName, aIntention ) ) |
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226 |
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227 if ( err != KErrNone ) |
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228 { |
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229 return EFalse; // in case of error file is not valid |
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230 } |
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231 |
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232 return ret; |
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233 } |
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234 |
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235 |
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236 // ----------------------------------------------------------------------------- |
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237 // CMFProtectionHandler::IsFlieDRMExpired |
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238 // |
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239 // Check if the DRM protect file is expired or have no rights. |
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240 // ----------------------------------------------------------------------------- |
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241 // |
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242 TBool CMFProtectionHandler::IsFlieDRMExpired( const TDesC& aFileName ) |
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243 { |
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244 // Check whether the file can be set as automated content or not |
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245 TBool canSetAutomated = EFalse; |
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246 TInt canSetAutomatedErr = iDRMHelper->CanSetAutomated( aFileName, canSetAutomated ); |
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247 |
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248 // Check if rights expried or no rights to use |
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249 if ( canSetAutomatedErr == DRMCommon::ERightsExpired || |
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250 canSetAutomatedErr == DRMCommon::ENoRights ) |
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251 { |
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252 return ETrue; |
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253 } |
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254 return EFalse; |
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255 } |
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256 |
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257 |
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258 // ----------------------------------------------------------------------------- |
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259 // CMFProtectionHandler::IsFileValidL |
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260 // |
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261 // Function is copy from CFLDDRMImplementation.cpp. |
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262 // ----------------------------------------------------------------------------- |
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263 // |
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264 TBool CMFProtectionHandler::IsFileValidL( const TDesC& aFileName, |
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265 TIntention aIntention ) |
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266 { |
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267 TInt err = KErrNone; |
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268 TBuf<KMaxDataTypeLength> dataType( DataTypeL( aFileName ).Des() ); |
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269 |
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270 if ( aFileName.Length() == 0 ) |
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271 { |
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272 return ETrue; // empty filename is valid?? |
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273 } |
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274 |
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275 if ( iExcludedMimeTypes->FindMimeTypeL( dataType ) ) |
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276 { |
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277 ShowErrorNoteL( R_QTN_INFO_FILE_FORMAT_ERROR ); |
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278 return EFalse; |
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279 } |
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280 |
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281 if ( aIntention == CMFProtectionHandler::ESelect && |
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282 !CheckFileSize( aFileName, dataType ) ) |
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283 { |
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284 HBufC* hBuf = StringLoader::LoadLC( R_QTN_INFO_FILE_SIZE_ERROR, iMaxFileSize ); |
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285 TMFDialogUtil::ShowInformationNoteL( *hBuf ); |
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286 CleanupStack::PopAndDestroy( hBuf ); |
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287 return EFalse; |
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288 } |
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289 |
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290 if ( iDriveUtil->IsRom( aFileName ) ) |
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291 { |
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292 return ETrue; // files in ROM are always valid |
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293 } |
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294 |
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295 // check if file is WMDRM protected |
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296 TBool prot = EFalse; |
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297 TRAP( err, prot = IsFileWMDRMProtectedL( aFileName ) ); |
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298 if ( err != KErrNone ) |
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299 { |
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300 ShowErrorNoteL( R_QTN_INFO_FILE_FORMAT_ERROR ); |
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301 return EFalse; |
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302 } |
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303 if ( prot ) |
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304 { |
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305 if ( aIntention == EPlay ) |
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306 { |
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307 ShowErrorNoteL( R_QTN_INFO_DRM_PREV_RIGHTS_USE ); |
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308 } |
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309 else |
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310 { |
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311 ShowErrorNoteL( R_QTN_INFO_DRM_PROTECTED ); |
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312 } |
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313 return EFalse; |
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314 } |
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315 |
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316 ContentAccess::TVirtualPathPtr path( aFileName, |
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317 ContentAccess::KDefaultContentObject ); |
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318 CData* data = CData::NewLC( path, EContentShareReadWrite ); |
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319 TInt isProtected; |
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320 err = data->GetAttribute( EIsProtected, isProtected ); |
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321 CleanupStack::PopAndDestroy( data ); |
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322 |
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323 if ( err != DRMCommon::EOk ) |
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324 { |
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325 // DRM Helper class knows at least rights db corrupted error message. |
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326 // Leaves on system-wide error code. |
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327 iDRMHelper->HandleErrorL( err, aFileName ); |
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328 return EFalse; |
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329 } |
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330 |
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331 // Obtain information whether the file can be set as automated content |
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332 TBool canSetAutomated = EFalse; |
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333 TInt canSetAutomatedErr = |
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334 iDRMHelper->CanSetAutomated( aFileName, canSetAutomated ); |
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335 |
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336 if ( !isProtected && canSetAutomated ) |
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337 { |
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338 // The file in question is not DRM protected. |
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339 // Return ETrue if file is also Ok unprotected, otherwise EFalse. |
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340 TBool ret = IsFileValidUnprotectedL( aFileName, aIntention ); |
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341 return ret; |
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342 } |
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343 |
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344 // Operator requirement: Check restrictions if file is mp4 audio |
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345 if ( iVariation->IsBlockedProtectedType( dataType ) ) |
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346 { |
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347 ShowErrorNoteL( R_QTN_INFO_DRM_PROTECTED ); |
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348 return EFalse; |
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349 } |
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350 |
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351 if ( canSetAutomatedErr == DRMCommon::ERightsExpired || |
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352 canSetAutomatedErr == DRMCommon::ENoRights ) |
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353 { |
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354 // Rights are expired, future rights or missing |
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355 iDRMHelper->HandleErrorL( canSetAutomatedErr, aFileName ); |
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356 return EFalse; |
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357 } |
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358 |
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359 // Operator requirement: Check DRM v2 tones |
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360 if ( !canSetAutomated ) |
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361 { |
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362 // This is DRM v2 file OR count based v1 tone |
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363 if ( aIntention == EPlay ) |
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364 { |
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365 ShowErrorNoteL( R_QTN_INFO_DRM_PREV_RIGHTS_USE ); |
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366 } |
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367 else |
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368 { |
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369 ShowErrorNoteL( R_QTN_INFO_DRM_PROTECTED ); |
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370 } |
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371 return EFalse; |
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372 } |
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373 |
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374 TInt32 infoBits( 0x00000000 ); |
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375 |
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376 // Find out rights information |
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377 if ( !GetFileInfoL( aFileName, infoBits ) ) |
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378 { |
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379 // Corrupted file or "No rights" situation |
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380 return EFalse; |
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381 } |
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382 |
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383 // Operator requirement: Check CFM protection |
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384 if ( infoBits & ENoRingingTone ) |
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385 { |
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386 // This is CFM protected file, ringingtone is set to "no" |
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387 if ( aIntention == EPlay ) |
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388 { |
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389 ShowErrorNoteL( R_QTN_INFO_DRM_PREV_RIGHTS_USE ); |
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390 } |
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391 else |
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392 { |
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393 ShowErrorNoteL( R_QTN_INFO_DRM_PREV_RIGHTS_SET ); |
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394 } |
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395 return EFalse; |
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396 } |
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397 |
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398 if ( aIntention == ESelect ) |
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399 { |
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400 // Rights are good to go, and intention is selection |
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401 // call SetAutomatedPassive to show 'activation query' |
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402 iDRMHelper->SetAutomatedType( iAutomatedType ); |
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403 err = iDRMHelper->SetAutomatedPassive( aFileName ); |
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404 if ( err != KErrCancel ) |
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405 { |
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406 // User accepted dialog |
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407 User::LeaveIfError( err ); |
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408 // New way, does not require DRM capability |
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409 data = CData::NewLC( path, EContentShareReadWrite ); |
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410 err = data->ExecuteIntent( ContentAccess::EPlay ); |
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411 // Wrongly requires DRM after all. According to Risto Vilkman |
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412 // from DRM, KErrAccessDenied can be ignored, since if |
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413 // CanSetAutomated says the tone is OK, it's OK. |
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414 if ( err != KErrNone && err != KErrAccessDenied ) |
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415 { |
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416 User::Leave( err ); |
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417 } |
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418 CleanupStack::PopAndDestroy( data ); |
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419 } |
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420 else |
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421 { |
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422 // User canceled dialog |
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423 return EFalse; |
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424 } |
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425 } |
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426 |
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427 return ETrue; |
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428 } |
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429 |
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430 |
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431 // ----------------------------------------------------------------------------- |
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432 // CMFProtectionHandler::GetFileInfo |
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433 // |
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434 // Function is copy from CFLDDRMImplementation.cpp. |
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435 // ----------------------------------------------------------------------------- |
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436 // |
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437 TBool CMFProtectionHandler::GetFileInfoL( const TDesC& aFileName, |
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438 TInt32& aInfoBits ) |
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439 { |
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440 DRMCommon::TContentProtection contentProtection; // ignored |
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441 HBufC8* mimeType = NULL; // ignored |
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442 TUint dataLength = 0; // ignored |
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443 HBufC8* contentURI = NULL; |
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444 |
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445 // Obtain content URI |
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446 TInt error = iDRMCommon->GetFileInfo( |
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447 aFileName, contentProtection, mimeType, contentURI, dataLength ); |
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448 delete mimeType; |
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449 |
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450 if ( error != DRMCommon::EOk ) |
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451 { |
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452 delete contentURI; |
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453 // Handle possible corrupt file situation |
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454 iDRMHelper->HandleErrorL( error, aFileName ); |
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455 return EFalse; |
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456 } |
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457 |
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458 // Obtain rights object |
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459 CDRMRights* rights = NULL; |
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460 error = iDRMCommon->GetActiveRights( *contentURI, DRMCommon::EPlay, rights ); |
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461 delete contentURI; |
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462 |
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463 if ( error == DRMCommon::ENoRights ) |
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464 { |
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465 delete rights; |
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466 // There is no rights for given file |
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467 // Should never arrive here, ENoRights is handled |
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468 // already in IsFileValidL() |
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469 iDRMHelper->HandleErrorL( error, aFileName ); |
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470 return EFalse; |
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471 } |
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472 |
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473 // Obtain infobits ( needed only for CFM case ) |
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474 aInfoBits = rights->GetPermission().iInfoBits; |
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475 delete rights; |
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476 return ETrue; |
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477 } |
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478 |
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479 |
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480 // ----------------------------------------------------------------------------- |
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481 // CMFProtectionHandler::IsFileWMDRMProtectedL |
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482 // |
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483 // Function is copy from CFLDDRMImplementation.cpp. |
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484 // ----------------------------------------------------------------------------- |
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485 // |
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486 TBool CMFProtectionHandler::IsFileWMDRMProtectedL( const TDesC& aFileName ) |
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487 { |
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488 TBool res = EFalse; |
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489 RFile hFile; |
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490 |
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491 TInt err = hFile.Open( iFsSession, aFileName, |
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492 EFileRead | EFileStream | EFileShareReadersOnly ); |
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493 if ( err == KErrInUse ) |
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494 { |
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495 err = hFile.Open( iFsSession, aFileName, |
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496 EFileRead | EFileStream | EFileShareAny ); |
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497 } |
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498 if ( err != KErrNone ) |
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499 { |
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500 User::Leave( err ); |
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501 } |
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502 CleanupClosePushL( hFile ); |
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503 |
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504 TPtrC agent( KNullDesC ); |
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505 DRM::CDrmUtility* drmUtil = DRM::CDrmUtility::NewLC(); |
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506 drmUtil->GetAgentL( hFile, agent ); |
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507 if ( agent.Compare( DRM::KDrmWMAgentName ) == 0 ) |
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508 { |
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509 res = ETrue; |
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510 } |
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511 CleanupStack::PopAndDestroy( drmUtil ); |
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512 |
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513 CleanupStack::PopAndDestroy( &hFile ); |
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514 return res; |
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515 } |
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516 |
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517 |
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518 // ----------------------------------------------------------------------------- |
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519 // CMFProtectionHandler::DataTypeL |
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520 // |
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521 // Function is copy from CFLDDRMImplementationCommon.cpp. |
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522 // ----------------------------------------------------------------------------- |
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523 // |
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524 TDataType CMFProtectionHandler::DataTypeL( const TDesC& aFileName ) |
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525 { |
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526 TUid dummyUid = { 0 }; |
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527 TDataType dataType( dummyUid ); |
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528 User::LeaveIfError( |
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529 iApaLsSession.AppForDocument( aFileName, dummyUid, dataType ) ); |
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530 |
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531 return dataType; |
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532 } |
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533 |
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534 |
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535 // ----------------------------------------------------------------------------- |
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536 // CMFProtectionHandler::IsFileValidUnprotectedL |
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537 // |
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538 // Function is copy from CFLDDRMImplementationCommon.cpp. |
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539 // ----------------------------------------------------------------------------- |
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540 // |
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541 TBool CMFProtectionHandler::IsFileValidUnprotectedL( const TDesC& aFileName, |
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542 TIntention aIntention ) |
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543 { |
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544 TDataType dataType = DataTypeL( aFileName ); |
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545 TBuf<KMaxDataTypeLength> mimeType; |
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546 |
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547 mimeType = dataType.Des(); |
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548 |
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549 if ( iVariation->IsBlockedType( mimeType ) ) |
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550 { |
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551 if ( aIntention == ESelect ) |
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552 { |
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553 ShowErrorNoteL( R_QTN_INFO_TEXT_NOT_ALLOWED ); |
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554 } |
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555 return EFalse; |
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556 } |
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557 |
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558 // Operator requirement. Check if DRM is required with tones. |
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559 if ( aIntention == EPlay ) |
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560 { |
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561 if ( iVariation->IsBlockedDemoPlayType( mimeType ) ) |
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562 { |
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563 return EFalse; |
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564 } |
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565 } |
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566 else |
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567 { |
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568 if ( iVariation->IsBlockedUnprotectedType( mimeType ) ) |
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569 { |
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570 ShowErrorNoteL( R_QTN_INFO_NO_DRM ); |
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571 return EFalse; |
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572 } |
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573 } |
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574 |
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575 return ETrue; |
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576 } |
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577 |
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578 |
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579 // ----------------------------------------------------------------------------- |
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580 // CMFProtectionHandler::CheckFileSize |
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581 // |
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582 // ----------------------------------------------------------------------------- |
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583 // |
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584 TBool CMFProtectionHandler::CheckFileSize( const TDesC& aFile, const TDesC& aMimeType ) |
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585 { |
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586 _LIT( KVideo, "video" ); |
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587 const TInt KKiloByte = 1024; |
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588 const TInt KSmallSize = 10; |
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589 |
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590 if ( iMaxFileSize < KSmallSize ) |
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591 { |
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592 return ETrue; // too small size limit |
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593 } |
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594 if ( aMimeType.Find( KVideo ) != KErrNotFound ) |
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595 { |
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596 return ETrue; // only audio files are checked |
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597 } |
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598 |
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599 TEntry entry; |
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600 TInt err = iFsSession.Entry( aFile, entry ); |
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601 if ( err == KErrNone && iMaxFileSize != KErrNotFound ) |
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602 { |
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603 TInt size = iMaxFileSize * KKiloByte; // KBytes -> Bytes |
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604 if ( entry.iSize > size ) |
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605 { |
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606 return EFalse; |
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607 } |
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608 } |
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609 |
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610 return ETrue; |
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611 } |
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612 |
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613 |
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614 // ----------------------------------------------------------------------------- |
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615 // CMFProtectionHandler::ShowErrorNoteL |
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616 // |
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617 // ----------------------------------------------------------------------------- |
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618 // |
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619 void CMFProtectionHandler::ShowErrorNoteL( TInt aResourceId ) |
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620 { |
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621 TMFDialogUtil::ShowInformationNoteL( aResourceId ); |
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622 } |
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623 |
|
624 |
|
625 // End of File |