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1 /* |
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2 * Copyright (c) 2002 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: Implementation of the CFLDDRMImplementation. |
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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 // CLASS HEADER |
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21 #include "CFLDDRMImplementation.h" |
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22 |
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23 // INTERNAL INCLUDES |
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24 #include "CFLDRingingTonePlayer.h" // KFLDResourceFileName |
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25 |
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26 // EXTERNAL INCLUDES |
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27 #include <DRMCommon.h> |
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28 #include <DRMHelper.h> |
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29 #include <filelist.rsg> |
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30 #include <MProfilesLocalFeatures.h> |
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31 #include <MProfileUtilitySingleton.h> |
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32 |
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33 #ifdef RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM |
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34 #include <drmutility.h> |
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35 #include <drmagents.h> |
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36 #endif |
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37 |
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38 // CONSTANTS |
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39 namespace |
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40 { |
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41 _LIT( KFLDROMDriveLetter, "Z:" ); |
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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 // CFLDDRMImplementation::ConstructL |
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48 // Symbian 2nd phase constructor can leave. |
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49 // ----------------------------------------------------------------------------- |
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50 // |
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51 void CFLDDRMImplementation::ConstructL() |
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52 { |
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53 iProfilesFeatures = &( ProfileUtilityInstanceL().ProfilesLocalFeatures() ); |
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54 iDRMCommon = DRMCommon::NewL(); |
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55 User::LeaveIfError( iDRMCommon->Connect() ); |
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56 iDRMHelper = CDRMHelper::NewL( *CCoeEnv::Static() ); |
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57 } |
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58 |
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59 // Destructor |
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60 CFLDDRMImplementation::~CFLDDRMImplementation() |
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61 { |
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62 delete iDRMHelper; |
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63 |
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64 if( iDRMCommon ) |
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65 { |
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66 iDRMCommon->Disconnect(); // ignore possible error |
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67 delete iDRMCommon; |
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68 } |
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69 ReleaseProfileUtility(); |
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70 } |
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71 |
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72 // ----------------------------------------------------------------------------- |
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73 // CFLDDRMImplementation::SetAutomatedType |
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74 // (other items were commented in a header). |
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75 // ----------------------------------------------------------------------------- |
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76 // |
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77 void CFLDDRMImplementation::SetAutomatedType( |
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78 CDRMHelper::TDRMHelperAutomatedType aAutomatedType ) |
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79 { |
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80 iAutomatedType = aAutomatedType; |
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81 } |
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82 |
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83 // ----------------------------------------------------------------------------- |
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84 // CFLDDRMImplementation::IsFileValidL |
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85 // (other items were commented in a header). |
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86 // ----------------------------------------------------------------------------- |
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87 // |
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88 TBool CFLDDRMImplementation::IsFileValidL( |
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89 const TDesC& aFileName, TIntention aIntention ) |
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90 { |
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91 // If the destructor is empty, return that it's valid |
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92 if( aFileName.Compare( KNullDesC ) == 0 ) |
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93 { |
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94 return ETrue; |
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95 } |
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96 |
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97 // Tone files on ROM are always valid |
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98 if( ( aFileName.Left( KFLDROMDriveLetter().Length() ).CompareF( |
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99 KFLDROMDriveLetter ) == 0 ) ) |
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100 { |
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101 return ETrue; |
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102 } |
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103 |
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104 // Check if file is WMDRM protected |
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105 TBool prot( EFalse ); |
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106 TRAPD( err, prot = IsFileWMDRMProtectedL( aFileName ) ); |
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107 if( err != KErrNone ) |
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108 { |
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109 ShowErrorNoteL( R_FLD_QTN_FILE_FORMAT_ERROR ); |
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110 return EFalse; |
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111 } |
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112 if( prot ) |
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113 { |
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114 ShowErrorNoteL( R_FLD_QTN_PROFILES_INFO_TONE_DRM_PROTECTED ); |
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115 return EFalse; |
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116 } |
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117 |
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118 ContentAccess::TVirtualPathPtr path( aFileName, |
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119 ContentAccess::KDefaultContentObject ); |
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120 CData* data = CData::NewLC( path, EContentShareReadWrite ); |
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121 TInt isProtected; |
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122 TInt error = data->GetAttribute( EIsProtected, isProtected ); |
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123 CleanupStack::PopAndDestroy(); // data |
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124 |
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125 if( error != DRMCommon::EOk ) |
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126 { |
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127 // DRM Helper class knows at least rights db corrupted error message. |
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128 // Leaves on system-wide error code. |
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129 iDRMHelper->HandleErrorL( error, aFileName ); |
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130 return EFalse; |
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131 } |
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132 |
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133 // Obtain information whether the file can be set as automated content |
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134 TBool canSetAutomated( EFalse ); |
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135 TInt canSetAutomatedErr( iDRMHelper->CanSetAutomated( aFileName, canSetAutomated ) ); |
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136 |
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137 if( !isProtected && canSetAutomated ) |
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138 { |
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139 // The file in question is not DRM protected. |
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140 // Return ETrue if file is also Ok unprotected, otherwise EFalse. |
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141 return IsFileValidUnprotectedL( aFileName, aIntention ); |
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142 } |
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143 |
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144 // Operator requirement: Check restrictions if file is mp4 audio |
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145 TBuf<KMaxDataTypeLength> dataType( DataTypeL( aFileName ).Des() ); |
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146 if( iProfilesFeatures->IsBlockedProtectedType( dataType ) ) |
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147 { |
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148 ShowErrorNoteL( R_FLD_QTN_PROFILES_INFO_TONE_DRM_PROTECTED ); |
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149 return EFalse; |
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150 } |
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151 |
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152 if ( canSetAutomatedErr == DRMCommon::ERightsExpired || |
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153 canSetAutomatedErr == DRMCommon::ENoRights ) |
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154 { |
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155 // Rights are expired, future rights or missing |
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156 iDRMHelper->HandleErrorL( canSetAutomatedErr, aFileName ); |
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157 return EFalse; |
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158 } |
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159 |
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160 // Operator requirement: Check DRM v2 tones |
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161 if( !canSetAutomated ) |
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162 { |
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163 // This is DRM v2 file OR count based v1 tone |
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164 ShowErrorNoteL( aIntention == EPlay ? |
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165 R_FLD_QTN_DRM_PREV_RIGHTS_USE : R_FLD_QTN_DRM_PREV_RIGHTS_SET); |
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166 return EFalse; |
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167 } |
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168 |
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169 TInt32 infoBits( 0x00000000 ); |
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170 |
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171 // Find out rights information |
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172 if( !CFLDDRMImplementation::GetFileInfoL( |
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173 aFileName, infoBits ) ) |
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174 { |
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175 // Corrupted file or "No rights" situation |
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176 return EFalse; |
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177 } |
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178 |
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179 // Operator requirement: Check CFM protection |
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180 if ( infoBits & ENoRingingTone ) |
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181 { |
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182 // This is CFM protected file, ringingtone is set to "no" |
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183 ShowErrorNoteL( aIntention == EPlay ? |
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184 R_FLD_QTN_DRM_PREV_RIGHTS_USE : R_FLD_QTN_DRM_PREV_RIGHTS_SET); |
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185 return EFalse; |
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186 } |
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187 |
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188 if( aIntention == ESelect ) |
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189 { |
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190 // Rights are good to go, and intention is selection |
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191 // call SetAutomatedPassive to show 'activation query' |
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192 iDRMHelper->SetAutomatedType( iAutomatedType ); |
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193 error = iDRMHelper->SetAutomatedPassive( aFileName ); |
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194 if( error != KErrCancel ) |
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195 { |
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196 // User accepted dialog |
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197 User::LeaveIfError( error ); |
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198 // New way, does not require DRM capability |
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199 data = CData::NewLC( path, EContentShareReadWrite ); |
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200 error = data->ExecuteIntent( ContentAccess::EPlay ); |
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201 // Wrongly requires DRM after all. According to Risto Vilkman |
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202 // from DRM, KErrAccessDenied can be ignored, since if |
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203 // CanSetAutomated says the tone is OK, it's OK. |
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204 if ( error != KErrNone && error != KErrAccessDenied ) |
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205 { |
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206 User::Leave( error ); |
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207 } |
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208 CleanupStack::PopAndDestroy(); // data |
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209 } |
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210 else |
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211 { |
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212 // User canceled dialog |
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213 return EFalse; |
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214 } |
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215 } |
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216 |
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217 return ETrue; |
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218 } |
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219 |
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220 // ----------------------------------------------------------------------------- |
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221 // CFLDDRMImplementation::GetFileInfo |
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222 // (other items were commented in a header). |
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223 // ----------------------------------------------------------------------------- |
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224 // |
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225 TBool CFLDDRMImplementation::GetFileInfoL( |
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226 const TDesC& aFileName, TInt32& aInfoBits ) const |
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227 { |
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228 DRMCommon::TContentProtection contentProtection; // ignored |
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229 HBufC8* mimeType = NULL; // ignored |
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230 TUint dataLength( 0 ); // ignored |
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231 HBufC8* contentURI( NULL ); |
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232 |
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233 // Obtain content URI |
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234 TInt error = iDRMCommon->GetFileInfo( |
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235 aFileName, contentProtection, mimeType, contentURI, dataLength ); |
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236 delete mimeType; |
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237 |
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238 if( error != DRMCommon::EOk ) |
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239 { |
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240 delete contentURI; |
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241 // Handle possible corrupt file situation |
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242 iDRMHelper->HandleErrorL( error, aFileName ); |
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243 return EFalse; |
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244 } |
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245 |
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246 // Obtain rights object |
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247 CDRMRights* rights = NULL; |
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248 error = iDRMCommon->GetActiveRights( *contentURI, DRMCommon::EPlay, rights ); |
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249 delete contentURI; |
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250 |
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251 if( error == DRMCommon::ENoRights ) |
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252 { |
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253 delete rights; |
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254 // There is no rights for given file |
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255 // Should never arrive here, ENoRights is handled |
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256 // already in IsFileValidL() |
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257 iDRMHelper->HandleErrorL( error, aFileName ); |
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258 return EFalse; |
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259 } |
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260 |
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261 // Obtain infobits ( needed only for CFM case ) |
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262 aInfoBits = rights->GetPermission().iInfoBits; |
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263 delete rights; |
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264 return ETrue; |
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265 } |
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266 |
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267 |
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268 // ----------------------------------------------------------------------------- |
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269 // |
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270 // Functions related to WMDRM protection check |
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271 // |
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272 // ----------------------------------------------------------------------------- |
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273 |
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274 #ifndef RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM |
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275 |
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276 // Some magic constants |
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277 static const TInt KMinContentLength( 16 ); |
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278 //_LIT8( KContentProtectionType, "DRM" ); |
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279 _LIT8( KASFHeaderObject, "75B22630668E11CFA6D900AA0062CE6C" ); |
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280 _LIT8( KWrmHeader, "W\0R\0M\0H\0E\0A\0D\0E\0R\0" ); |
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281 |
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282 // ----------------------------------------------------------------------------- |
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283 // FormatGUID |
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284 // ----------------------------------------------------------------------------- |
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285 // |
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286 LOCAL_C void FormatGUID( TDes8& aGUID ) |
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287 { |
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288 TBuf8<16> copyGUID( aGUID ); |
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289 TInt i; |
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290 for( i = 0; i < 4; i++ ) |
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291 { |
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292 copyGUID[i] = aGUID[3-i]; |
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293 } |
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294 for( i = 4; i < 6; i++ ) |
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295 { |
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296 copyGUID[i] = aGUID[9 - i]; |
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297 } |
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298 for( i = 6; i < 8; i++ ) |
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299 { |
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300 copyGUID[i] = aGUID[13 - i]; |
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301 } |
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302 for( i = 8; i < 16 ; i++ ) |
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303 { |
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304 copyGUID[i] = aGUID[i]; |
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305 } |
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306 aGUID.Delete( 0, 32 ); |
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307 for( i = 0; i <16; i++ ) |
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308 { |
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309 aGUID.AppendNumFixedWidthUC( copyGUID[i], EHex, 2 ); |
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310 } |
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311 } |
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312 |
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313 // ----------------------------------------------------------------------------- |
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314 // ConvertToInt64 |
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315 // ----------------------------------------------------------------------------- |
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316 // |
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317 LOCAL_C TInt64 ConvertToInt64( TDesC8& aDes ) |
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318 { |
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319 TInt64 num = 0; |
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320 TInt i; |
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321 for( i = 7 ; i >= 0; i-- ) |
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322 { |
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323 num <<= 8; |
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324 num |= aDes[i]; |
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325 } |
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326 return num; |
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327 } |
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328 |
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329 |
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330 // ----------------------------------------------------------------------------- |
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331 // IsProtectedWmDrmL |
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332 // returns ETrue, if file is protected WMDRM file |
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333 // EFalse if file is not protected WMDRM file |
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334 // Leaves with KErrUnderflow if file has too little data to decide |
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335 // whether WmDrm or not |
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336 // may also leave with other system wide error code |
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337 // ----------------------------------------------------------------------------- |
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338 // |
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339 LOCAL_C TBool IsProtectedWmDrmL( RFile& aFileHandle ) |
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340 { |
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341 TInt r( KErrNone ); |
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342 HBufC8* buffer( NULL ); |
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343 TInt pos( 0 ); |
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344 RFile file; |
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345 TBuf8< 32 > header; |
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346 |
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347 TInt64 headerSize( 0 ); |
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348 TBool isProtectedWmDrm( EFalse ); |
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349 TPtr8 headerPtr( NULL, 0 ); |
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350 |
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351 // Leave if given handle is invalid |
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352 if( !aFileHandle.SubSessionHandle() ) |
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353 { |
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354 User::Leave( KErrBadHandle ); |
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355 } |
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356 |
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357 User::LeaveIfError( file.Duplicate( aFileHandle ) ); |
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358 CleanupClosePushL( file ); |
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359 |
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360 User::LeaveIfError( file.Seek( ESeekStart, pos ) ); |
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361 |
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362 // Check if the file is an ASF file |
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363 // : Check on runtime wether WM DRM is supporeted or not |
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364 |
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365 User::LeaveIfError( file.Read( 0, header, KMinContentLength ) ); |
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366 if( header.Length() < KMinContentLength ) |
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367 { |
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368 User::Leave( KErrUnderflow ); |
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369 } |
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370 |
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371 FormatGUID( header ); |
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372 |
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373 if( header == KASFHeaderObject ) |
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374 { |
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375 // It's ASF, check still whether it's WM DRM protected or not |
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376 file.Read( header,8 ); |
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377 headerSize = ConvertToInt64( header ); |
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378 if( headerSize <= 30 ) |
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379 { |
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380 User::Leave( KErrUnderflow ); |
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381 } |
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382 if ( headerSize > ( ( KMaxTInt32 / 2 ) - 1 ) ) |
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383 { |
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384 User::Leave( KErrOverflow ); |
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385 } |
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386 buffer = HBufC8::NewLC( headerSize ); |
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387 |
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388 headerPtr.Set( buffer->Des() ); |
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389 User::LeaveIfError( file.Read( headerPtr, headerSize - 24 ) ); |
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390 |
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391 r = headerPtr.Find( KWrmHeader ); |
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392 if ( KErrNotFound != r ) |
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393 { |
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394 isProtectedWmDrm = ETrue; |
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395 } |
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396 CleanupStack::PopAndDestroy( buffer ); // buffer |
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397 } |
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398 CleanupStack::PopAndDestroy(); // file |
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399 |
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400 return isProtectedWmDrm; |
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401 } |
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402 |
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403 #endif // RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM |
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404 |
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405 // ----------------------------------------------------------------------------- |
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406 // CFLDDRMImplementation::IsFileWMDRMProtectedL |
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407 // ----------------------------------------------------------------------------- |
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408 // |
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409 TBool CFLDDRMImplementation::IsFileWMDRMProtectedL( const TDesC& aFileName ) const |
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410 { |
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411 TBool res = EFalse; |
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412 RFs& fsSession( CCoeEnv::Static()->FsSession() ); |
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413 RFile hFile; |
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414 |
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415 TInt err = hFile.Open( fsSession, aFileName, |
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416 EFileRead | EFileStream | EFileShareReadersOnly ); |
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417 if( err == KErrInUse ) |
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418 { |
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419 err = hFile.Open( fsSession, aFileName, |
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420 EFileRead | EFileStream | EFileShareAny ); |
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421 } |
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422 if( err != KErrNone ) |
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423 { |
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424 User::Leave( err ); |
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425 } |
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426 CleanupClosePushL( hFile ); |
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427 |
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428 #ifdef RD_DRM_COMMON_INTERFACE_FOR_OMA_AND_WMDRM |
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429 TPtrC agent( KNullDesC ); |
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430 DRM::CDrmUtility* drmUtil( DRM::CDrmUtility::NewLC() ); |
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431 drmUtil->GetAgentL( hFile, agent ); |
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432 if( agent.Compare( DRM::KDrmWMAgentName ) == 0 ) |
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433 { |
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434 res = ETrue; |
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435 } |
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436 CleanupStack::PopAndDestroy( drmUtil ); |
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437 #else |
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438 res = IsProtectedWmDrmL( hFile ); |
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439 #endif |
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440 |
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441 CleanupStack::PopAndDestroy( &hFile ); |
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442 return res; |
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443 } |
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444 |
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445 // ----------------------------------------------------------------------------- |
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446 // |
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447 // End of Functions related to WMDRM protection check |
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448 // |
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449 // ----------------------------------------------------------------------------- |
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450 |
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451 // End of File |