--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/omadrm/drmengine/utils/src/MultipartHandler.cpp	Thu Dec 17 08:52:27 2009 +0200
@@ -0,0 +1,335 @@
+/*
+* Copyright (c) 2005 - 2008 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:  utility class for handling multipart/related HTTP responses
+*                in ROAP
+*
+*/
+
+
+
+// INCLUDE FILES
+#include <e32base.h>
+#include <hash.h>
+#include "Base64.h"
+#include "MultipartHandler.h"
+
+#ifdef _DEBUG
+
+#include <e32debug.h>
+#define MULTIPART_DEBUGLIT( a ) RDebug::Print( _L ( a ) );
+
+#else // DEBUG
+
+#define MULTIPART_DEBUGLIT( a )
+
+#endif // DEBUG
+
+// CONSTANTS
+
+_LIT8( KBoundaryPrefix, "--" );
+_LIT8( KCrLf, "\r\n" );
+_LIT8( KCrLfCrLf, "\r\n\r\n" );
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::TMultipartHandler
+// ---------------------------------------------------------------------------
+//
+TMultipartHandler::TMultipartHandler():
+    iState( EPreamble )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::TMultipartHandler -->" )
+    iBuffer.SetLength( 0 );
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::TMultipartHandler" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::WriteL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::WriteL(
+    const TDesC8& aData )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::WriteL -->" )
+    switch ( iState )
+        {
+        case EPreamble:
+            MULTIPART_DEBUGLIT( "EPreamble" )
+            HandlePreambleL( aData );
+            break;
+        case EBodyPartHeaders:
+            MULTIPART_DEBUGLIT( "EBodyPartHeaders" )
+            HandleBodyPartHeadersL( aData );
+            break;
+        case EBodyPart:
+            MULTIPART_DEBUGLIT( "EBodyPart" )
+            HandleBodyPartL( aData );
+            break;
+        case EEpilog:
+            MULTIPART_DEBUGLIT( "EEpilog" )
+            break;
+        }
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::WriteL" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::FindDashBoundary
+// ---------------------------------------------------------------------------
+//
+TBool TMultipartHandler::FindDashBoundary(
+    const TDesC8& aBuffer,
+    TInt& aStart,
+    TInt& aEnd )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::FindDashBoundary -->" )
+    TBool r( EFalse );
+    const TInt KBoundaryPrefixLength( KBoundaryPrefix().Length() );
+    const TInt KCrLfLength( KCrLf().Length() );
+    aStart = aBuffer.Find( KBoundaryPrefix );
+    if ( aStart >= 0 )
+        {
+        MULTIPART_DEBUGLIT( "TMultipartHandler::FindDashBoundary aStart nonnegative" )
+        aEnd = aBuffer.Mid( aStart ).Find( KCrLf );
+        aEnd += aStart;
+        if ( aEnd > aStart + KBoundaryPrefixLength )
+            {
+            MULTIPART_DEBUGLIT( "TMultipartHandler::FindDashBoundary  aEnd > aStart + (boundary prefix length)" )
+            const TInt delimiterLength( aEnd - aStart + KCrLfLength );
+            __ASSERT_ALWAYS( KMaxBoundaryLength  >= delimiterLength, User::Invariant() );
+            iDelimiter.Copy( KCrLf );
+            iDelimiter.Append( KBoundaryPrefix );
+            iDelimiter.Append( aBuffer.Mid(
+                aStart + KBoundaryPrefixLength,
+                aEnd - aStart - KBoundaryPrefixLength ) );
+            r = ETrue;
+            MULTIPART_DEBUGLIT( "TMultipartHandler::FindDashBoundary  found dash boundary" )
+            }
+        }
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::FindDashBoundary" )
+    return r;
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::FindHeaderEnd
+// ---------------------------------------------------------------------------
+//
+TBool TMultipartHandler::FindHeaderEnd(
+    const TDesC8& aBuffer,
+    TInt& aStart,
+    TInt& aEnd )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::FindHeaderEnd -->" )
+    TBool r( EFalse );
+
+    aStart = aBuffer.Find( KCrLfCrLf );
+    if ( aStart >= 0 )
+        {
+        aEnd = aStart + KCrLfCrLf().Length();
+        r = ETrue;
+        }
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::FindHeaderEnd" )
+    return r;
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::FindDelimiter
+// ---------------------------------------------------------------------------
+//
+TBool TMultipartHandler::FindDelimiter(
+    const TDesC8& aBuffer,
+    TInt& aStart,
+    TInt& aEnd )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::FindDelimiter -->" )
+    TBool r( EFalse );
+
+    aStart = aBuffer.Find( iDelimiter );
+    if ( aStart >= 0 )
+        {
+        aEnd = aStart + iDelimiter.Length();
+        r = ETrue;
+        }
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::FindDelimiter" )
+    return r;
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::HandlePreambleL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::HandlePreambleL(
+    const TDesC8& aData )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::HandlePreambleL -->" )
+    TInt bStart( 0 );
+    TInt bEnd( 0 );
+    HBufC8* buffer( NULL );
+
+    buffer = HBufC8::NewLC( iBuffer.Length() + aData.Length() );
+    buffer->Des().Copy( iBuffer );
+    buffer->Des().Append( aData );
+    if ( !FindDashBoundary( *buffer, bStart, bEnd ) )
+        {
+        iBuffer.Copy( buffer->Right( Min(
+                    KMaxBoundaryLength, buffer->Length() ) ) );
+        }
+    else
+        {
+        iBuffer.SetLength( 0 );
+        iState = EBodyPartHeaders;
+        StartBodyPartHeadersL();
+        HandleBodyPartHeadersL( buffer->Mid( bEnd + KCrLf().Length() ) );
+        }
+    CleanupStack::PopAndDestroy( buffer );
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::HandlePreambleL" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::HandleBodyPartHeadersL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::HandleBodyPartHeadersL(
+    const TDesC8& aData )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::HandleBodyPartHeadersL -->" )
+    TInt bStart( 0 );
+    TInt bEnd( 0 );
+    HBufC8* buffer( HBufC8::NewLC( iBuffer.Length() + aData.Length() ) );
+    buffer->Des().Copy( iBuffer );
+    buffer->Des().Append( aData );
+    iBuffer.Copy( buffer->Right( Min(
+                KMaxBoundaryLength, buffer->Length() ) ) );
+    if ( !FindHeaderEnd( *buffer, bStart, bEnd ) )
+        {
+        const TInt lengthNoBoundary( buffer->Length() - KMaxBoundaryLength );
+        if (  lengthNoBoundary > 0 )
+            {
+            HandleBodyHeaderDataL( buffer->Left( lengthNoBoundary ) );
+            }
+        }
+    else
+        {
+        HandleBodyHeaderDataL( buffer->Left( bStart ) );
+        iBuffer.SetLength( 0 );
+        iState = EBodyPart;
+        StartBodyPartL();
+        HandleBodyPartL( buffer->Mid( bEnd ) );
+        }
+    CleanupStack::PopAndDestroy( buffer );
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::HandleBodyPartHeadersL" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::HandleBodyPartL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::HandleBodyPartL(
+    const TDesC8& aData )
+    {
+    MULTIPART_DEBUGLIT( "TMultipartHandler::HandleBodyPartL -->" )
+    TInt bStart( 0 );
+    TInt bEnd( 0 );
+
+    HBufC8* buffer( HBufC8::NewLC( iBuffer.Length() + aData.Length() ) );
+    buffer->Des().Copy( iBuffer );
+    buffer->Des().Append( aData );
+
+    iBuffer.Copy( buffer->Right( Min(
+                KMaxBoundaryLength, buffer->Length() ) ) );
+
+    if ( !FindDelimiter( *buffer, bStart, bEnd ) )
+        {
+        const TInt lengthNoBoundary( buffer->Length() - KMaxBoundaryLength );
+        if ( lengthNoBoundary > 0 )
+            {
+            HandleBodyDataL( buffer->Left( lengthNoBoundary ) );
+            }
+        }
+    else
+        {
+        HandleBodyDataL( buffer->Left( bStart ) );
+        iBuffer.SetLength( 0 );
+        if ( ( *buffer )[ bEnd ] == '-' && ( *buffer )[ bEnd + 1 ] == '-' )
+            {
+            EndBodyPartL();
+            iState = EEpilog;
+            }
+        else
+            {
+            iState = EBodyPartHeaders;
+            StartBodyPartHeadersL();
+            HandleBodyPartHeadersL( buffer->Mid( bEnd + KCrLf().Length() ) );
+            }
+        }
+    CleanupStack::PopAndDestroy( buffer );
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::HandleBodyPartL" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::StartBodyPartHeadersL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::StartBodyPartHeadersL()
+    {
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::StartBodyPartHeadersL -->" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::EndBodyPartHeadersL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::EndBodyPartHeadersL()
+    {
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::EndBodyPartHeadersL -->" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::HandleBodyHeaderDataL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::HandleBodyHeaderDataL(
+    const TDesC8& /*aData*/ )
+    {
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::HandleBodyHeaderDataL -->" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::StartBodyPartL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::StartBodyPartL()
+    {
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::StartBodyPartL -->" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::EndBodyPartL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::EndBodyPartL()
+    {
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::EndBodyPartL -->" )
+    }
+
+// ---------------------------------------------------------------------------
+// TMultipartHandler::HandleBodyDataL
+// ---------------------------------------------------------------------------
+//
+void TMultipartHandler::HandleBodyDataL(
+    const TDesC8& /*aData*/ )
+    {
+    MULTIPART_DEBUGLIT( "--> TMultipartHandler::HandleBodyDataL -->" )
+    }