vpnengine/ikev1lib/src/credentialcache.cpp
branchRCL_3
changeset 41 e06095241a65
parent 38 9f4e37332ce5
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/ikev1lib/src/credentialcache.cpp	Wed Sep 01 12:23:21 2010 +0100
@@ -0,0 +1,260 @@
+ /*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Cache for authentication credentials
+*
+*/
+
+#include <f32file.h>
+
+#include "credentialcache.h"
+#include "ikedebug.h"
+#include "cmutils.h"
+
+
+_LIT( KFileName, "cache" );
+
+
+CCredentialCache* CCredentialCache::NewL( MIkeDebug& aDebug )
+{
+    CCredentialCache* cache = new (ELeave) CCredentialCache( aDebug );
+
+    CleanupStack::PushL( cache );
+
+    cache->ConstructL();
+
+    CleanupStack::Pop();
+
+    return cache;
+}
+
+
+CCredentialCache::CCredentialCache( MIkeDebug& aDebug )
+  : iDebug( aDebug )
+{
+}
+
+
+void CCredentialCache::ConstructL()
+{
+    User::LeaveIfError( iFs.Connect() );
+        
+    DEBUG_LOG( _L( "CCredentialCache::ConstructL" ) );
+}
+
+
+CCredentialCache::~CCredentialCache()
+{
+    iFs.Close();
+}
+
+
+void CCredentialCache::SetUserName( const TDesC8& aUser )
+{
+    if( KErrNone != CheckCredential( aUser ) )
+    {
+        return;   
+    }
+
+    iBuf.iUser.Copy( aUser );
+}
+
+
+void CCredentialCache::SetSecret( const TDesC8& aSecret )
+{
+    if( KErrNone != CheckCredential( aSecret ) )
+    {
+        return;   
+    }
+
+    iBuf.iSecret.Copy( aSecret );
+}
+
+
+TInt CCredentialCache::GetCredentials(
+    const TUint32 aVpnApId, HBufC8*& aUser, HBufC8*& aSecret )
+{
+    TInt ret = KErrNone;
+    
+    TRAPD( err, ret = GetCredentialsL( aVpnApId, aUser, aSecret ) );
+    
+    if( KErrNone != err )
+    {
+        DEBUG_LOG1( _L("CCredentialCache::GetCredentials, err=%d"), err );
+        return err;
+    }
+    
+    return ret;
+}
+
+
+TInt CCredentialCache::GetCredentialsL(
+    const TUint32 aVpnApId, HBufC8*& aUser, HBufC8*& aSecret )
+{
+    TInt ret = ReadFile();
+
+    if( KErrNone != ret )
+    {
+        return ret;   
+    }
+
+    TVpnPolicyId id;
+    
+    CmUtils::GetPolicyIdL( aVpnApId, id );
+
+    if( id != iBuf.iId )
+    {
+        DEBUG_LOG1(
+            _L("CCredentialCache::GetCredentialsL, pol=%S"), &iBuf.iId
+        );
+        
+        return KErrNotFound;
+    }
+
+    aUser   = iBuf.iUser.AllocL();
+    aSecret = iBuf.iSecret.AllocL();
+    
+    return KErrNone;
+}
+
+
+void CCredentialCache::Store( const TUint32 aVpnApId )
+{
+    TRAPD( err, StoreL( aVpnApId ) );
+    
+    if( KErrNone != err )
+    {
+        DEBUG_LOG1( _L("CCredentialCache::Store, err=%d"), err );
+    }
+}
+
+
+void CCredentialCache::StoreL( const TUint32 aVpnApId )
+{
+    CmUtils::GetPolicyIdL( aVpnApId, iBuf.iId );
+
+    StoreToFileL();
+}
+
+
+void CCredentialCache::Clear()
+{
+    TInt ret = CreateFileNameAndPath();
+    
+    if( KErrNone != ret )
+    {
+        return;
+    }
+
+    ret = iFs.Delete( iFileName );
+    
+    if( KErrNone != ret )
+    {
+        DEBUG_LOG1( _L("CCredentialCache::Clear, ret=%d"), ret );
+    }
+}
+
+
+TInt CCredentialCache::CheckCredential( const TDesC8& cr )
+{
+    TInt len = cr.Length();
+    
+    if( 0 == len || KCredentialMaxLen < len )
+    {
+        DEBUG_LOG1( _L("CCredentialCache::CheckCredential, len=%d"), len );
+        return KErrArgument;
+    }
+
+    return KErrNone;
+}
+
+
+void CCredentialCache::StoreToFileL()
+{
+    RFile cache;
+
+    User::LeaveIfError( CreateFileNameAndPath() );
+
+    User::LeaveIfError( cache.Replace(
+        iFs, iFileName, EFileShareExclusive | EFileWrite
+    ) );
+
+    CleanupClosePushL( cache );
+
+    TPckg< TCacheBuffer > data( iBuf );
+
+    User::LeaveIfError( cache.Write( data ) );
+
+    CleanupStack::PopAndDestroy( &cache );
+}
+
+
+TInt CCredentialCache::ReadFile()
+{
+    RFile cache;
+    
+    TInt ret = cache.Open( iFs, KFileName, EFileRead );
+    
+    if( KErrNone != ret )
+    {
+      return ret;   
+    }
+
+    TInt size = 0;
+    
+    ret = cache.Size( size );
+
+    TPckg< TCacheBuffer > data( iBuf );
+
+    if( size != data.Size() )
+    {
+        DEBUG_LOG1( _L("CCredentialCache::ReadFile, size=%d"), size );
+        cache.Close();
+        Clear();
+        return KErrCorrupt;
+    }
+
+    ret = cache.Read( data );
+
+    cache.Close();
+    
+    return ret;
+}
+
+
+TInt CCredentialCache::CreateFileNameAndPath()
+{
+    TInt ret = iFs.CreatePrivatePath( RFs::GetSystemDrive() );
+
+    if( KErrNone          != ret &&
+        KErrAlreadyExists != ret )
+    {
+        DEBUG_LOG1( _L("CCredentialCache, CreatePrivatePath ret=%d"), ret );
+        return ret;
+    }
+ 
+    ret = iFs.PrivatePath( iFileName );
+
+    if( KErrNone != ret )
+    {
+        DEBUG_LOG1( _L("CCredentialCache, PrivatePath ret=%d"), ret );
+        return ret;
+    }
+
+    iFileName.Append( KFileName );
+    
+    return KErrNone;
+}
+
+
+/***/