webengine/osswebengine/WebCore/platform/network/symbian/UnknownContentHandler.cpp
author Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
Fri, 08 May 2009 08:25:06 +0300
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  UnknownContentHandler
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*
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*/
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#include "UnknownContentHandler.h"
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#include "HttpConnection.h"
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#include "PlatformString.h"
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#include <Uri8.h>
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#include <apgcli.h>
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using namespace WebCore;
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UnknownContentHandler::UnknownContentHandler(HttpConnection* connection)
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{
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    m_connection = connection;
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    m_response = NULL;
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}
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UnknownContentHandler::~UnknownContentHandler()
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{
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    delete m_response;
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}
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UnknownContentHandler* UnknownContentHandler::NewL(HttpConnection* connection, WebCore::ResourceResponse& response)
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{
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    UnknownContentHandler* self = NULL;
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    self = new(ELeave) UnknownContentHandler(connection);
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    CleanupStack::PushL(self);
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    self->ConstructL(response);
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    CleanupStack::Pop(self);
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    return self;
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}
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bool UnknownContentHandler::isUnknownContent(ResourceResponse& response)
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{
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    const String& mimeType = response.mimeType();
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    const KURL& url = response.url();
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    if( equalIgnoringCase(mimeType, "application/octet-stream")) {
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        TUriParser8 parser;
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        if( parser.Parse(url.des()) == KErrNone ) {
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            TPtrC8 path = parser.Extract( EUriPath );
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            int length = path.Length();
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            if( length > 4 ) {
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                if (path.Find(_L8(".html")) != KErrNotFound || path.Find(_L8(".htm")) != KErrNotFound) {
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                    response.setMimeType("text/html");
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                    return false; // good chance of being html content
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                }
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                if (path.Find(_L8(".xhtml")) != KErrNotFound ) {
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                    response.setMimeType("application/xhtml+xml");
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                    return false; // good chance of being xhtml content
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                }
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                if (path.Find(_L8(".wml")) != KErrNotFound) {
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                    response.setMimeType("text/vnd.wap.wml");
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                    return false; // good chance of being wml content
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                }
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            }
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        }
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        return true; // could be html
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    }
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    return false;
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}
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void UnknownContentHandler::updateContentTypeL(TPtrC8& chunkPtr)
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{
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    RApaLsSession apaSession;
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    TInt ret;
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    User::LeaveIfError( apaSession.Connect() );
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    TDataRecognitionResult dataType;
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    ret = apaSession.RecognizeData( KNullDesC, chunkPtr, dataType );
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    apaSession.Close();
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    if( ret == KErrNone &&
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      ( dataType.iConfidence == CApaDataRecognizerType::ECertain ) ||
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      ( dataType.iConfidence == CApaDataRecognizerType::EProbable ) ) {       
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        // "text/plain" shouldn't be treated as a strong type
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        if (dataType.iDataType.Des8().FindF(_L8("text/plain")) == KErrNotFound) {
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            m_response->setMimeType(dataType.iDataType.Des8());
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        }
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    }
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}
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ResourceResponse* UnknownContentHandler::handOffResponse()
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{
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    ResourceResponse* response = m_response;
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    m_response = NULL;
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    return response;
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}
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void UnknownContentHandler::ConstructL(ResourceResponse& response)
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{
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    m_response = new(ELeave) ResourceResponse(response.url(), response.mimeType(), response.expectedContentLength(), response.textEncodingName(), response.suggestedFilename());
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}
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// end of file