terminalsecurity/SCP/SCPServer/src/SCPPluginEventHandler.cpp
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     1 /*
       
     2 * Copyright (c) 2000 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: Implementation of terminalsecurity components
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include <e32debug.h>
       
    21 #include <f32file.h>
       
    22 #include <e32math.h>
       
    23 #include <SCPParamObject.h>
       
    24 #include <hash.h>
       
    25 
       
    26 #include "SCPServer.h"
       
    27 #include "SCPPluginEventHandler.h"
       
    28 #include "SCP_IDs.h"
       
    29 
       
    30 // ================= MEMBER FUNCTIONS =======================
       
    31 
       
    32 // ---------------------------------------------------------
       
    33 // void CSCPPluginEventHandler::CSCPPluginEventHandler()
       
    34 // C++ default constructor
       
    35 // 
       
    36 // Status : Approved
       
    37 // ---------------------------------------------------------
       
    38 //
       
    39 CSCPPluginEventHandler::CSCPPluginEventHandler( RFs* aRfs ):
       
    40     iPluginConfiguration( NULL ),
       
    41     iRfs( aRfs )
       
    42 	{
       
    43 	Dprint( (_L("--> CSCPPluginEventHandler::CSCPPluginEventHandler()") ));
       
    44  
       
    45     // No implementation required    
       
    46 	
       
    47 	Dprint( (_L("<-- CSCPPluginEventHandler::CSCPPluginEventHandler()") ));
       
    48 	}
       
    49 
       
    50 
       
    51 // ---------------------------------------------------------
       
    52 // void CSCPPluginEventHandler::NewL()
       
    53 // Static constructor
       
    54 // 
       
    55 // Status : Approved
       
    56 // ---------------------------------------------------------
       
    57 //
       
    58 CSCPPluginEventHandler* CSCPPluginEventHandler::NewL( RFs* aRfs )
       
    59 	{
       
    60 	CSCPPluginEventHandler* self = CSCPPluginEventHandler::NewLC( aRfs );
       
    61 	CleanupStack::Pop( self ); 
       
    62 	
       
    63 	return self;	
       
    64 	}
       
    65 	
       
    66 // ---------------------------------------------------------
       
    67 // void CSCPPluginEventHandler::NewLC()
       
    68 // Static constructor, leaves object pointer to the cleanup stack.
       
    69 // 
       
    70 // Status : Approved
       
    71 // ---------------------------------------------------------
       
    72 //
       
    73 CSCPPluginEventHandler* CSCPPluginEventHandler::NewLC( RFs* aRfs )
       
    74 	{
       
    75 	CSCPPluginEventHandler* self = new (ELeave) CSCPPluginEventHandler( aRfs );
       
    76 
       
    77     CleanupStack::PushL( self );
       
    78     self->ConstructL();	
       
    79         
       
    80     return self;	
       
    81     }
       
    82 
       
    83 // ---------------------------------------------------------
       
    84 // void CSCPPluginEventHandler::ConstructL()
       
    85 // Symbian 2nd phase constructor
       
    86 // 
       
    87 // Status : Approved
       
    88 // ---------------------------------------------------------
       
    89 //
       
    90 void CSCPPluginEventHandler::ConstructL()
       
    91     {    
       
    92     // Read the configuration path            
       
    93     iConfigurationPath.Zero();
       
    94     User::LeaveIfError( iRfs->PrivatePath( iConfigurationPath ) );
       
    95     
       
    96     // Fetch the configuration for the plugins from disk
       
    97     
       
    98     iPluginConfiguration = CSCPParamObject::NewL();
       
    99         
       
   100     // Build the configuration file name
       
   101     TFileName cfgFileName = iConfigurationPath;                    
       
   102     cfgFileName.Append( KSCPPluginConfigFilename );
       
   103         
       
   104     TRAPD( err, iPluginConfiguration->ReadFromFileL( cfgFileName, iRfs ) );
       
   105     
       
   106     if ( ( err != KErrNotFound ) && ( err != KErrNone ) )
       
   107         {
       
   108         Dprint( (_L("CSCPPluginEventHandler::ConstructL(): WARNING:\
       
   109             failed to read plugin configuration: %d"), err )); 
       
   110         }            
       
   111     }
       
   112     
       
   113 
       
   114     
       
   115 // ---------------------------------------------------------
       
   116 // void CSCPPluginEventHandler::GetParameters()
       
   117 // Return the stored object pointer.
       
   118 // 
       
   119 // Status : Approved
       
   120 // ---------------------------------------------------------
       
   121 //
       
   122 CSCPParamObject& CSCPPluginEventHandler::GetParameters()
       
   123     {
       
   124     return *iPluginConfiguration;
       
   125     }
       
   126     
       
   127 
       
   128 
       
   129 // ---------------------------------------------------------
       
   130 // void CSCPPluginEventHandler::GetRfsSession()
       
   131 // Return the stored RFs reference
       
   132 // 
       
   133 // Status : Approved
       
   134 // ---------------------------------------------------------
       
   135 //
       
   136 RFs& CSCPPluginEventHandler::GetFsSession()
       
   137     {
       
   138     return *iRfs;  
       
   139     }
       
   140  
       
   141  
       
   142  
       
   143 // ---------------------------------------------------------
       
   144 // void CSCPPluginEventHandler::WritePluginConfigurationL()
       
   145 // Get the param buffer from the object and write it to disk
       
   146 // 
       
   147 // Status : Approved
       
   148 // ---------------------------------------------------------
       
   149 //
       
   150 TInt CSCPPluginEventHandler::WritePluginConfigurationL()
       
   151     {   
       
   152     // Build the configuration file name
       
   153     TFileName cfgFileName;
       
   154     TInt ret = GetStoragePathL( cfgFileName );
       
   155     if ( ret != KErrNone )
       
   156         {
       
   157         Dprint( (_L("CSCPPluginEventHandler::WritePluginConfigurationL():\
       
   158             ERROR: Failed to get storage path: %d"), ret ));             
       
   159         User::Leave( ret );
       
   160         }
       
   161         
       
   162     cfgFileName.Append( KSCPPluginConfigFilename );   
       
   163         
       
   164     TRAP( ret, iPluginConfiguration->WriteToFileL( cfgFileName, iRfs ) );
       
   165         
       
   166     return ret;
       
   167     }
       
   168 
       
   169 
       
   170 // ---------------------------------------------------------
       
   171 // void CSCPPluginEventHandler::GetStoragePath()
       
   172 // Retrieve the private path and fill it in aPath
       
   173 // 
       
   174 // Status : Approved
       
   175 // ---------------------------------------------------------
       
   176 //
       
   177 TInt CSCPPluginEventHandler::GetStoragePathL( TDes& aPath )
       
   178     {    
       
   179     aPath.Copy( iConfigurationPath );
       
   180                 
       
   181     return KErrNone;
       
   182     }    
       
   183     
       
   184     
       
   185     
       
   186 // ---------------------------------------------------------
       
   187 // CSCPPluginEventHandler::HashInput()
       
   188 // Use the symbian Crypto API to hash the input buffer.
       
   189 // 
       
   190 // Status : Approved
       
   191 // ---------------------------------------------------------
       
   192 //
       
   193 TInt CSCPPluginEventHandler::HashInput( TDes& aInput, TDes& aOutput )
       
   194     {
       
   195     TInt ret = KErrNone;
       
   196     
       
   197     CMD5* hashObject = NULL;
       
   198     TRAP( ret, hashObject = CMD5::NewL() );    
       
   199     
       
   200 #ifdef UNICODE
       
   201     TUint16* inputPtr = const_cast<TUint16*>( aInput.Ptr() ); 
       
   202     TPtrC8 inputData( reinterpret_cast<TUint8*>(inputPtr), aInput.Length()*2 );
       
   203 #else // !UNICODE
       
   204     TPtrC8 inputData = aInput;
       
   205 #endif
       
   206     
       
   207     if ( hashObject != NULL )
       
   208         {
       
   209         TPtrC8 hash = hashObject->Final( inputData );
       
   210         aOutput.Copy( hash );
       
   211         delete hashObject;
       
   212         }
       
   213     
       
   214     return ret;
       
   215     }
       
   216 
       
   217 
       
   218 // ---------------------------------------------------------
       
   219 // CSCPPluginEventHandler::ResetConfigurationL()
       
   220 // Reset the common parameter storage by resetting the ParamObject.
       
   221 // 
       
   222 // Status : Approved
       
   223 // ---------------------------------------------------------
       
   224 //
       
   225 void CSCPPluginEventHandler::ResetConfigurationL()
       
   226     {
       
   227     iPluginConfiguration->Reset();
       
   228         
       
   229     WritePluginConfigurationL();
       
   230     }
       
   231 
       
   232 // ---------------------------------------------------------
       
   233 // void CSCPPluginEventHandler::~CSCPPluginEventHandler()
       
   234 // Destructor
       
   235 // 
       
   236 // Status : Approved
       
   237 // ---------------------------------------------------------
       
   238 //
       
   239 CSCPPluginEventHandler::~CSCPPluginEventHandler()
       
   240 	{
       
   241 	Dprint( (_L("--> CSCPPluginEventHandler::~CSCPPluginEventHandler()") )); 
       
   242 			
       
   243 	TRAPD( err, WritePluginConfigurationL() );
       
   244     if ( err != KErrNone )
       
   245         {
       
   246         Dprint( (_L("CSCPPluginEventHandler::~CSCPPluginEventHandler():\
       
   247             WARNING: Failed to store plugin configuration: %d"), err ));        
       
   248         }	
       
   249 	delete iPluginConfiguration;  
       
   250                   
       
   251 	Dprint( (_L("<-- CSCPPluginEventHandler::~CSCPPluginEventHandler()") ));
       
   252 	}
       
   253 
       
   254 
       
   255 //  End of File  
       
   256