FCL/sf/mw/drm: comparison commondrm/drmutility/src/DrmUtility.cpp

equal deleted inserted replaced

-:e16d72588c28
+:8a03a285ab14
 *
 */
 // INCLUDE FILES
-#include <Oma2Dcf.h>
+#include <oma2dcf.h>
 #include <drmagents.h>
 #include <drmutility.h>
 #include <centralrepository.h>
-#include <UTF.h>
+#include <utf.h>
 #include "Oma1Dcf.h"
 #include "DrmUtilityInternalcrkeys.h"      // Cenrep extension for OmaBased
 }
 for ( i = 6; i < 8; i++ )
 {
 copyGUID[i] = aGUID[13 - i];
 }
 for ( i = 8; i < 16 ; i++)
 {
 copyGUID[i] = aGUID[i];
 }
 aGUID.Delete( 0, 32 );
 for ( i = 0; i < 16; i++ )
 // ============================ MEMBER FUNCTIONS ===============================
 // -----------------------------------------------------------------------------
 // Default constructor
 // -----------------------------------------------------------------------------
 //
 DRM::CDrmUtility::CDrmUtility()
 {
 }
 // -----------------------------------------------------------------------------
 // Destructor
 // -----------------------------------------------------------------------------
 //
 DRM::CDrmUtility::~CDrmUtility()
 {
 delete iOmaBasedAgentName;
 delete iOmaBasedMimeType;
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::NewLC
 // First phase constructor
 // -----------------------------------------------------------------------------
 //
 EXPORT_C DRM::CDrmUtility* DRM::CDrmUtility::NewLC()
 {
 DRM::CDrmUtility* self( new( ELeave ) CDrmUtility );
 CleanupStack::PushL( self );
 self->ConstructL();
 // -----------------------------------------------------------------------------
 // CDrmUtility::NewL
 // First phase constructor
 // -----------------------------------------------------------------------------
 //
 EXPORT_C DRM::CDrmUtility* DRM::CDrmUtility::NewL()
 {
 DRM::CDrmUtility* self( NewLC() );
 CleanupStack::Pop();
 return self;
 }
 void DRM::CDrmUtility::ConstructL()
 {
 TInt err( KErrNone );
 TRAP(err, FetchOmaBasedInfoL() );
 if( err)
 {
 if( iOmaBasedAgentName )
 {
 if( iOmaBasedMimeType )
 {
 delete iOmaBasedMimeType;
 }
 iOmaBasedMimeType = NULL;
 }
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::FetchOmaBasedInfoL
 // -----------------------------------------------------------------------------
 {
 TInt err = KErrNone;
 CRepository* repository( NULL );
 RBuf bOmaBasedAgentName;
 RBuf bOmaBasedMimeType;
 CleanupClosePushL(bOmaBasedAgentName);
 CleanupClosePushL(bOmaBasedMimeType);
 bOmaBasedAgentName.CreateL( KCenRepDataLength );
 bOmaBasedMimeType.CreateL( KCenRepDataLength );
 TRAP( err, repository = CRepository::NewL( KCRUidOmaBased ) );
 if ( !err )
 {
 CleanupStack::PushL( repository );
 err = repository->Get( KDrmOmaBasedName, bOmaBasedAgentName );
 if( !err )
 {
 iOmaBasedAgentName = bOmaBasedAgentName.AllocL();
 }
 err = repository->Get( KOmaBasedMimeType, bOmaBasedMimeType );
 if( !err )
 {
 iOmaBasedMimeType = CnvUtfConverter::ConvertFromUnicodeToUtf8L( bOmaBasedMimeType );
 }
 CleanupStack::PopAndDestroy( repository );
 }
 CleanupStack::PopAndDestroy(2);
 User::LeaveIfError( err );
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::GetDrmInfoL
 // -----------------------------------------------------------------------------
 //
 EXPORT_C TBool DRM::CDrmUtility::GetDrmInfoL(
 RFile& aFileHandle,
 TPtrC& aAgent,
 DRM::TDrmProtectionStatus& aProtected ) const
 {
 TInt r( KErrNone );
 RFile file;
 TBuf8< 32 > header;
 TInt64 headerSize( 0 );
 TBool isDrmFile( EFalse );
 TPtr8 headerPtr( NULL, 0 );
 aProtected = DRM::EUUnprotected;
 aAgent.Set( KNullDesC );
 CheckFileHandleL( aFileHandle );
 User::LeaveIfError( file.Duplicate( aFileHandle ) );
 CleanupClosePushL( file );
 User::LeaveIfError( file.Seek( ESeekStart, pos ) );
 // Check if the file is an ASF file
 // To be Checked on runtime wether WM DRM is supporeted or not
 User::LeaveIfError( file.Read( 0, header, KMinContentLength ) );
 if ( header.Length() < KMinContentLength )
 {
 User::Leave( KErrArgument );
 }
 FormatGUID( header );
 if ( header == KASFHeaderObject )
 {
 // It's ASF, check still whether it's WM DRM protected or not
 file.Read( header, KWMHeaderObjectLength );
 headerSize = ConvertToInt64( header );
 if( headerSize <= KWMTopLevelHeaderObjectLength ||
 headerSize > KMaxWMHeaderLength )
 {
 User::Leave( KErrArgument );
 }
 buffer = HBufC8::NewLC( headerSize );
 headerPtr.Set( buffer->Des() );
 User::LeaveIfError( file.Read( headerPtr,
 headerSize - ( KMinContentLength + KWMHeaderObjectLength ) ) );
 r = headerPtr.Find( KWrmHeader );
 if ( r == KErrNotFound )
 {
 aProtected = DRM::EUUnprotected;
 }
 else
 {
 isDrmFile = ETrue;
 aProtected = DRM::EUProtected;
 aAgent.Set( DRM::KDrmWMAgentName );
 }
 CleanupStack::PopAndDestroy( buffer ); // buffer
 }
 else
 {
 // Check whether it's OMA DRM protected or not
 buffer = HBufC8::NewLC( KOmaHeaderLength );
 headerPtr.Set( buffer->Des() );
 User::LeaveIfError( file.Read( 0, headerPtr ));
 if ( COma1Dcf::IsValidDcf( headerPtr ) )
 {
 isDrmFile = ETrue;
 aProtected = DRM::EUProtected;
 aAgent.Set( DRM::KDrmOmaAgentName );
 }
 else if ( COma2Dcf::IsValidDcf( headerPtr ) )
 {
 isDrmFile = ETrue;
 _LIT8( KCommonHeadersBox, "ohdr" );
 pos = headerPtr.Find( KCommonHeadersBox );
 // If no box can be found or if there isn't enough data
 // set protection as unknown
 if( pos == KErrNotFound ||
 headerPtr.Length() < pos + KOma2EncryptionFieldOffset )
 {
 aProtected = DRM::EUUnknown;
 }
 // If encryption field is 0, then content isn't protected
 aProtected = DRM::EUUnprotected;
 }
 else
 {
 aProtected = DRM::EUProtected;
 }
 aAgent.Set( DRM::KDrmOmaAgentName );
 }
 else if ( (buffer->Des())[0] == 1)
 {
 // set the mimetype from the buffer which is in the beginning
 // starting from byte 3 with the length specified at position 2
 TPtrC8 mimeType( buffer->Des().Mid(3, (buffer->Des())[1]) );
 if( !mimeType.CompareF( *iOmaBasedMimeType ) )
 {
 aAgent.Set( *DRM::CDrmUtility::iOmaBasedAgentName );
 isDrmFile = ETrue;
 }
 }
 CleanupStack::PopAndDestroy( buffer );
 }
 CleanupStack::PopAndDestroy( &file ); // file
 return isDrmFile;
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::GetDrmInfoL
 // -----------------------------------------------------------------------------
 //
 EXPORT_C TBool DRM::CDrmUtility::GetDrmInfoL(
 const TDesC8& aContent,
 TPtrC& aAgent,
 DRM::TDrmProtectionStatus& aProtected ) const
 {
 TInt r( KErrNone );
 RFile file;
 TPtr8 asfPtr( NULL, 0 );
 TBuf8< 32 > asfGuidHex;
 TBool isDrmFile( EFalse );
 aProtected = DRM::EUUnprotected;
 aAgent.Set( KNullDesC );
 if ( aContent.Length() < KMinContentLength )
 {
 User::Leave( KErrArgument );
 }
 // Check if the file is an ASF file
 asfPtr.Set(
 const_cast<TUint8*>( asfGuidHex.Ptr() ), 0, KMinContentLength * 2 );
 asfPtr.Copy( aContent.Left( KMinContentLength ) );
 FormatGUID( asfPtr );
 if ( asfPtr == KASFHeaderObject )
 {
 // It's ASF, check still whether it's WM DRM protected or not
 r = aContent.Find( KWrmHeader );
 if ( r == KErrNotFound )
 {
 aProtected = DRM::EUUnprotected;
 }
 else
 {
 isDrmFile = ETrue;
 aProtected = DRM::EUProtected;
 aAgent.Set( DRM::KDrmWMAgentName );
 }
 }
 else
 {
 // Check whether it's OMA DRM protected or not.
 if ( ( aContent.Length() >= KMinContentLengthOma1Based ) &&
 ( COma1Dcf::IsValidDcf( aContent ) ) )
 {
 isDrmFile = ETrue;
 aProtected = DRM::EUProtected;
 aAgent.Set( DRM::KDrmOmaAgentName );
 }
 else if ( COma2Dcf::IsValidDcf( aContent ) )
 {
 isDrmFile = ETrue;
 _LIT8( KCommonHeadersBox, "ohdr" );
 TInt pos( aContent.Find( KCommonHeadersBox ) );
 // If no box can be found or if there isn't enough data
 // set protection as unknown
 if ( pos == KErrNotFound ||
 aContent.Length() < pos + KOma2EncryptionFieldOffset )
 {
 aProtected = DRM::EUUnknown;
 }
 // If encryption field is 0, then content isn't protected
 else if ( !aContent[pos + KOma2EncryptionFieldOffset] )
 {
 aProtected = DRM::EUUnprotected;
 }
 else
 {
 aProtected = DRM::EUProtected;
 }
 aAgent.Set( DRM::KDrmOmaAgentName );
 }
 else if ( (aContent)[0] == 1)
 {
 // set the mimetype from the buffer which is in the beginning
 // starting from byte 3 with the length specified at position 2
 TPtrC8 mimeType( aContent.Mid(3, (aContent)[1]) );
 if( !mimeType.CompareF( *iOmaBasedMimeType ) )
 {
 aAgent.Set( *DRM::CDrmUtility::iOmaBasedAgentName );
 isDrmFile = ETrue;
 aProtected = DRM::EUProtected;
 }
 }
 }
 return isDrmFile;
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::IsProtectedL
 // -----------------------------------------------------------------------------
 //
 EXPORT_C TBool DRM::CDrmUtility::IsProtectedL( RFile& aFileHandle ) const
 {
 DRM::TDrmProtectionStatus protection( DRM::EUUnknown );
 TPtrC agent( KNullDesC );
 TBool isDrmFile( EFalse );
 TBool isProtected( EFalse );
 isDrmFile = GetDrmInfoL( aFileHandle, agent, protection );
 if ( isDrmFile && protection == DRM::EUProtected )
 {
 isProtected = ETrue;
 }
 return isProtected;
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::IsProtectedL
 // -----------------------------------------------------------------------------
 //
 EXPORT_C TBool DRM::CDrmUtility::IsProtectedL( const TDesC8& aContent ) const
 {
 DRM::TDrmProtectionStatus protection( DRM::EUUnknown );
 TPtrC agent( KNullDesC );
 TBool isDrmFile( EFalse );
 TBool isProtected( EFalse );
 isDrmFile = GetDrmInfoL( aContent, agent, protection );
 if( isDrmFile && protection == DRM::EUProtected )
 {
 isProtected = ETrue;
 }
 return isProtected;
 // -----------------------------------------------------------------------------
 // CDrmUtility::GetAgentL
 // -----------------------------------------------------------------------------
 //
 EXPORT_C TBool DRM::CDrmUtility::GetAgentL(
 RFile& aFileHandle,
 TPtrC& aAgent ) const
 {
 DRM::TDrmProtectionStatus protection( DRM::EUUnknown );
 TBool isDrmFile( EFalse );
 isDrmFile = GetDrmInfoL( aFileHandle, aAgent, protection );
 return isDrmFile;
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::GetAgentL
 // -----------------------------------------------------------------------------
 //
 EXPORT_C TBool DRM::CDrmUtility::GetAgentL(
 const TDesC8& aContent,
 TPtrC& aAgent ) const
 {
 DRM::TDrmProtectionStatus protection( DRM::EUUnknown );
 TBool isDrmFile( EFalse );
 isDrmFile = GetDrmInfoL( aContent, aAgent, protection );
 return isDrmFile;
 }
 // -----------------------------------------------------------------------------
 // CDrmUtility::CheckFileHandlerL
 // Checks whether given filehandle is valid if not leaves with KErrArgument
 // (other items were commented in a header).
 // -----------------------------------------------------------------------------
 //
 EXPORT_C void DRM::CDrmUtility::CheckFileHandleL( RFile& aFileHandle ) const
 {
 if ( !aFileHandle.SubSessionHandle() )
 {
 User::Leave( KErrBadHandle );
 }
 }
 //  End of File

branch	RCL_3
changeset 18	8a03a285ab14
parent 0	95b198f216e5
child 82	a117e284a2c6