wmdrm/wmdrmengine/wmdrmfileserver/client/src/wmdrmfileserverclient.cpp
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     1 /*
       
     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  WMDRM Fileserver Client implementation
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include "wmdrmfileserverclient.h"
       
    20 #include "wmdrmfsclientserver.h"
       
    21 
       
    22 //#define _LOGGING_FILE L"wmdrmfileserver.txt"
       
    23 
       
    24 //#include "logfn.h"
       
    25 
       
    26 // Message slots a client can have open: taken from the global slot pool
       
    27 const TInt KServerDefaultMessageSlots = -1;
       
    28 
       
    29 // Number of times the server is attempted to start if it is not running
       
    30 const TInt KServerRetryCount = 3;
       
    31 
       
    32 // ======== LOCAL FUNCTIONS ========
       
    33 
       
    34 // ---------------------------------------------------------------------------
       
    35 // Try to start the server if it is not running
       
    36 // ---------------------------------------------------------------------------
       
    37 //
       
    38 static TInt StartServer()
       
    39 	{
       
    40 	RProcess server;
       
    41 	TInt r = server.Create( KWmDrmFileServerImg, KNullDesC );
       
    42 	if ( r != KErrNone )
       
    43 		return r;
       
    44 	TRequestStatus stat;
       
    45 	server.Rendezvous( stat );
       
    46 	if ( stat != KRequestPending )
       
    47 	    {
       
    48 		server.Kill( 0 );
       
    49 		}
       
    50 	else
       
    51 	    {
       
    52 		server.Resume();
       
    53 		}
       
    54 	User::WaitForRequest( stat );
       
    55 	r = ( server.ExitType() == EExitPanic ) ? KErrGeneral : stat.Int();
       
    56 	server.Close();
       
    57 	return r;
       
    58 	}
       
    59 
       
    60 // ======== MEMBER FUNCTIONS ========
       
    61 
       
    62 EXPORT_C TInt RWmDrmFileServerClient::Open( const TDesC& aFilename )
       
    63     {
       
    64     TInt r = KErrNone;
       
    65 
       
    66     //LOGFNR( "RWmDrmFileServerClient::Open", r );
       
    67     r = SendReceive( EFsOpen, TIpcArgs( &aFilename ) );
       
    68     return r;
       
    69     }
       
    70 
       
    71 EXPORT_C TInt RWmDrmFileServerClient::Create( const TDesC& aFilename )
       
    72     {
       
    73     TInt r = KErrNone;
       
    74 
       
    75     //LOGFNR( "RWmDrmFileServerClient::Create", r );
       
    76     r = SendReceive( EFsCreate, TIpcArgs( &aFilename ) );
       
    77     return r;
       
    78     }
       
    79 
       
    80 EXPORT_C TInt RWmDrmFileServerClient::Read( TDes8& aBuffer )
       
    81     {
       
    82     TInt r = KErrNone;
       
    83     TInt amountRead;
       
    84     TPckg<TInt> amountPckg( amountRead );
       
    85 
       
    86     //LOGFNR( "RWmDrmFileServerClient::Read", r );
       
    87     r = SendReceive( EFsRead, TIpcArgs( &aBuffer, &amountPckg ) );
       
    88     if ( r == KErrNone )
       
    89         {
       
    90         aBuffer.SetLength( amountRead );
       
    91         }
       
    92     return r;
       
    93     }
       
    94 
       
    95 EXPORT_C TInt RWmDrmFileServerClient::Write( const TDesC8& aBuffer )
       
    96     {
       
    97     TInt r = KErrNone;
       
    98 
       
    99     //LOGFNR( "RWmDrmFileServerClient::Write", r );
       
   100     r = SendReceive( EFsWrite, TIpcArgs( &aBuffer ) );
       
   101     return r;
       
   102     }
       
   103 
       
   104 EXPORT_C TInt RWmDrmFileServerClient::Size( TInt& aSize )
       
   105     {
       
   106     TInt r = KErrNone;
       
   107     TPckg<TInt> sizePckg( aSize );
       
   108 
       
   109     //LOGFNR( "RWmDrmFileServerClient::Size", r );
       
   110     r = SendReceive( EFsSize, TIpcArgs( &sizePckg ) );
       
   111     return r;
       
   112     }
       
   113 
       
   114 EXPORT_C TInt RWmDrmFileServerClient::Delete( const TDesC& aFilename )
       
   115     {
       
   116     TInt r = KErrNone;
       
   117 
       
   118     //LOGFNR( "RWmDrmFileServerClient::Delete", r );
       
   119     r = SendReceive( EFsDelete, TIpcArgs( &aFilename ) );
       
   120     return r;
       
   121     }
       
   122 
       
   123 EXPORT_C TBool RWmDrmFileServerClient::IsOpen()
       
   124     {
       
   125     TInt r = KErrNone;
       
   126 
       
   127     //LOGFNR( "RWmDrmFileServerClient::IsOpen", r );
       
   128     r = SendReceive( EFsIsOpen );
       
   129     return (r == KErrNone ? ETrue : EFalse);
       
   130     }
       
   131 
       
   132 EXPORT_C void RWmDrmFileServerClient::CloseFile()
       
   133     {
       
   134     //LOGFN( "RWmDrmFileServerClient::CloseFile" );
       
   135     SendReceive( EFsCloseFile );
       
   136     }
       
   137 
       
   138 EXPORT_C TInt RWmDrmFileServerClient::MkDirAll( const TDesC& aPath, TBool aCreateIfMissing )
       
   139     {
       
   140     TInt r = KErrNone;
       
   141     
       
   142     //LOGFNR( "RWmDrmFileServerClient::MkDirAll", r );
       
   143     r = SendReceive( EFsMkDirAll, TIpcArgs( &aPath, aCreateIfMissing ) );
       
   144     return r;
       
   145     }
       
   146 
       
   147 EXPORT_C TInt RWmDrmFileServerClient::RmDirAll( const TDesC& aPath )
       
   148     {
       
   149     TInt r = KErrNone;
       
   150     
       
   151     //LOGFNR( "RWmDrmFileServerClient::RmDirAll", r );
       
   152     r = SendReceive( EFsRmDirAll, TIpcArgs( &aPath ) );
       
   153     return r;
       
   154     }
       
   155 
       
   156 EXPORT_C TInt RWmDrmFileServerClient::RmDir( const TDesC& aPath )
       
   157     {
       
   158     TInt r = KErrNone;
       
   159     
       
   160     //LOGFNR( "RWmDrmFileServerClient::RmDir", r );
       
   161     r = SendReceive( EFsRmDir, TIpcArgs( &aPath ) );
       
   162     return r;
       
   163     }
       
   164 
       
   165 EXPORT_C TInt RWmDrmFileServerClient::DeleteRights()
       
   166     {
       
   167     TInt r = KErrNone;
       
   168     
       
   169     //LOGFNR( "RWmDrmFileServerClient::DeleteRights", r );
       
   170     r = SendReceive( EFsDeleteRights );
       
   171     return r;
       
   172     }
       
   173 
       
   174 EXPORT_C TInt RWmDrmFileServerClient::Connect()
       
   175 	{
       
   176 	TInt r = KErrNone;
       
   177 	
       
   178 	//LOGFNR( "RWmDrmFileServerClient::Connect", r );
       
   179 	TInt retry = KServerRetryCount;
       
   180 	for ( ;; )
       
   181 		{
       
   182 		r = CreateSession( KWmDrmFileServerName, TVersion( 0, 0, 0 ), KServerDefaultMessageSlots );
       
   183 		if ( r != KErrNotFound && r != KErrServerTerminated )
       
   184 		    {
       
   185 			return r;
       
   186 			}
       
   187 		if ( --retry == 0 )
       
   188 		    {
       
   189 			return r;
       
   190 			}
       
   191 		r = StartServer();
       
   192 		if ( r != KErrNone && r != KErrAlreadyExists )
       
   193 		    {
       
   194 			return r;
       
   195 			}
       
   196 		}
       
   197 	}
       
   198 
       
   199 
       
   200 EXPORT_C TInt RWmDrmFileServerClient::UpdateSecureTime( TTime& aHomeTime, TTime& aUTCTime )
       
   201     {
       
   202     TInt r = KErrNone;
       
   203     TPckg<TTime> homeTime( aHomeTime );
       
   204     TPckg<TTime> utcTime( aUTCTime );
       
   205     
       
   206     //LOGFNR( "RWmDrmFileServerClient::UpdateSecureTime", r );
       
   207     r = SendReceive( EFsUpdateSecureTime, TIpcArgs( &homeTime, &utcTime ) );
       
   208     return r;    
       
   209     }