lowlevellibsandfws/pluginfw/Framework/frame/EComEntryBase.cpp
changeset 0 e4d67989cc36
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     1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 #include <e32uid.h>
       
    17 #include <bautils.h>
       
    18 #include <barsread2.h>
       
    19 #include <baspi.h>
       
    20 #include <ecom/ecomerrorcodes.h>
       
    21 
       
    22 #include "Discoverer.h"
       
    23 #include "EComEntryBase.h"
       
    24 #include "EComUidCodes.h"
       
    25 #include "DriveInfo.h"
       
    26 
       
    27 const TInt KEcomResourceIndex=1;
       
    28 const TInt KEComDllExtensionLength=4;
       
    29 
       
    30 CPluginBase::CPluginBase():CBase()
       
    31 {
       
    32 }
       
    33 
       
    34 CPluginBase::~CPluginBase()
       
    35 {
       
    36 	delete iDllName;
       
    37 	delete iRscFile;
       
    38 }
       
    39 
       
    40 //
       
    41 CSecurePlugin::CSecurePlugin(const TEntry& aEntry):CPluginBase()
       
    42 {
       
    43 	//only needs to copy the modified time here and construct the dll name
       
    44 	iDllModifiedTime=aEntry.iModified;
       
    45 }
       
    46 
       
    47 CSecurePlugin* CSecurePlugin::NewL(RFs& aFs,const TEntry& aEntry,const TDriveName& aDriveName, TBool aIsRO)
       
    48 {
       
    49 	CSecurePlugin* self=new (ELeave) CSecurePlugin(aEntry);
       
    50 	CleanupStack::PushL(self);
       
    51 	self->ConstructL(aFs,aEntry,aDriveName, aIsRO);
       
    52 	CleanupStack::Pop();
       
    53 	return self;
       
    54 }
       
    55 
       
    56 void CSecurePlugin::ConstructL(RFs& aFs,const TEntry& aEntry,const TDriveName& aDriveName, TBool aIsRO)
       
    57 {
       
    58 	TInt resourceNameOnlyLength=aEntry.iName.Length()-KExtensionLength;
       
    59 	TPtrC resourceNameOnly(aEntry.iName.Left(resourceNameOnlyLength));
       
    60 
       
    61 	//constructing the dll file name	
       
    62 	iDllName=HBufC::NewL(KEComDllExtensionLength+resourceNameOnlyLength);
       
    63 	TPtr namePtr=iDllName->Des();
       
    64 	namePtr.Append(resourceNameOnly);
       
    65 	namePtr.Append(KDllExtension);	
       
    66 
       
    67 	//Constructing the rsc file name
       
    68 	TFileName rscFileName;
       
    69 	rscFileName.Append(aDriveName);
       
    70 	rscFileName.Append(KResourcePlugins);
       
    71 	rscFileName.Append(resourceNameOnly);
       
    72 	rscFileName.Append(KRscExtension);
       
    73 
       
    74 	//Construct the CResourceFile
       
    75 	BaflUtils::NearestLanguageFile(aFs,rscFileName);
       
    76 	iRscFile=CResourceFile::NewL(aFs,rscFileName,0,0);
       
    77 
       
    78 	//Now get the secure id from resource and store in iDllThirdUid
       
    79 	//In addition, store the correct Interface Implementation Collection Uid in iDllSecondUid
       
    80 	RResourceReader theReader;
       
    81 	theReader.OpenLC(iRscFile,KEcomResourceIndex);
       
    82 	const TUid uid={theReader.ReadInt32L()};
       
    83 	if (uid == KUidEComResourceFormatV3)		
       
    84 		{
       
    85 		// If the resource format is version 3, then the dll type must
       
    86 		// be of type "plugin3".
       
    87 		iDllSecondUid = KUidInterfaceImplementationCollection3;
       
    88 		}
       
    89 	else
       
    90 		{
       
    91 		iDllSecondUid = KUidInterfaceImplementationCollection;	
       
    92 		}
       
    93 			
       
    94 	if (uid==KUidEComResourceFormatV2 || uid==KUidEComResourceFormatV3)
       
    95 		{
       
    96 		iDllThirdUid.iUid=theReader.ReadInt32L();
       
    97 		}
       
    98 	else
       
    99 		iDllThirdUid=uid;
       
   100 
       
   101 	//Construct resource file extension
       
   102 	if(!aIsRO)
       
   103 		{
       
   104 		// rscFileName is sane so we can use TParsePtrC instead of TParse
       
   105 		TParsePtrC fileNameParser(rscFileName);
       
   106 		TPtrC fileNameParserPtr = fileNameParser.Ext();
       
   107 		iRscFileExt = fileNameParserPtr.AllocL();
       
   108 		}
       
   109 	
       
   110 	//Perform cleanup now
       
   111 	CleanupStack::PopAndDestroy(&theReader);
       
   112 }
       
   113 
       
   114 CSecurePlugin::~CSecurePlugin()
       
   115 {
       
   116 	delete iRscFileExt;
       
   117 }
       
   118 
       
   119 //	
       
   120 CSpiPlugin::CSpiPlugin():CPluginBase()
       
   121 {
       
   122 }
       
   123 
       
   124 CSpiPlugin* CSpiPlugin::NewL(RResourceArchive& aRscArchive)
       
   125 {
       
   126 	CSpiPlugin* self=new (ELeave) CSpiPlugin();
       
   127 	CleanupStack::PushL(self);
       
   128 	self->ConstructL(aRscArchive);
       
   129 	CleanupStack::Pop();
       
   130 	return self;
       
   131 }
       
   132 
       
   133 void CSpiPlugin::ConstructL(RResourceArchive& aRscArchive)
       
   134 {
       
   135 	HBufC* resourceName = NULL;
       
   136 	iRscFile=aRscArchive.NextL(resourceName);
       
   137 	CleanupStack::PushL(resourceName);
       
   138 	
       
   139 	//Now set the iDllName
       
   140 	iDllName=HBufC::NewL(KEComDllExtensionLength+resourceName->Length());
       
   141 	TPtr namePtr(iDllName->Des());	
       
   142 	namePtr.Append(*resourceName);
       
   143 	namePtr.Append(KDllExtension);
       
   144 		
       
   145 	//Now get the secure id from resource and store the uid in iDllThirdUid
       
   146 	RResourceReader theReader;
       
   147 	theReader.OpenLC(iRscFile,KEcomResourceIndex);
       
   148 	const TUid uid={theReader.ReadInt32L()};
       
   149 	if (uid == KUidEComResourceFormatV3)		
       
   150 		{
       
   151 		// If the resource format is version 3, then the dll type must
       
   152 		// be of type "plugin3".
       
   153 		iDllSecondUid = KUidInterfaceImplementationCollection3;
       
   154 		}
       
   155 	else
       
   156 		{
       
   157 		iDllSecondUid = KUidInterfaceImplementationCollection;		
       
   158 		}
       
   159 	
       
   160 	TUid dllUid;	
       
   161 	if (uid==KUidEComResourceFormatV2 || uid==KUidEComResourceFormatV3)
       
   162 		{
       
   163 		dllUid.iUid=theReader.ReadInt32L();
       
   164 		}
       
   165 	else
       
   166 		dllUid=uid;
       
   167 	iDllThirdUid=dllUid;
       
   168 	CleanupStack::PopAndDestroy(&theReader);
       
   169 		
       
   170 	//Now perform the necessary cleanup
       
   171 	CleanupStack::PopAndDestroy(resourceName);
       
   172 }
       
   173 
       
   174 
       
   175