/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not, 

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:  Service IPC Session

*

*/

#include <e32capability.h> 

#include "xqservicelog.h"

#include <xqserviceclientinfo.h>

#include "xqserviceipcobserver.h"

#include "xqserviceipcrequest.h"

#include "xqserviceipcserver_symbiansession.h"

#include "xqrequestutil.h"

namespace QtService

{

// Constants for the IPC operation id

const TInt KIPCNewOperation = 0;

const TInt KIPCGetData = 1;

const TInt KIPCCancelAsync = 2;

const TInt KIPCOperationWithSharableFile = 3;  // Sharable file support

/*!

    \class CServiceSymbianSession

    \brief Symbian Session class

*/

/*!

    Constructor.

    \param aObserver Observer to the server.

*/

CServiceSymbianSession::CServiceSymbianSession(MServiceIPCObserver* aObserver) :

    ServiceIPCSession(aObserver)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::CServiceSymbianSession");

}

/*!

    2nd phased constructor.

*/

void CServiceSymbianSession::ConstructL()

{

}

/*!

    Two-Phased Constructor.

    \param aObserver Observer to the server.

*/

CServiceSymbianSession* CServiceSymbianSession::NewL(MServiceIPCObserver* aObserver)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::NewL");

    CServiceSymbianSession* self =

                    new (ELeave) CServiceSymbianSession(aObserver);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

}

/*!

    Destructor.

*/

CServiceSymbianSession::~CServiceSymbianSession()

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::~CServiceSymbianSession");

    if (iCurRequest) {

        iObserver->handleDeleteRequest(iCurRequest); 

        delete iCurRequest;

    }

    iCurRequest = NULL;

}

/*!

    Write some data in response to a request.

    \param aData Some data to write as response.

    \return bool if write was successful.

*/

bool CServiceSymbianSession::write(const QByteArray& aData)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::write");

    XQSERVICE_DEBUG_PRINT("aData: %s", aData.constData());

    // Implicitly shared

    iData = aData;

    return false;

}

/*!

    Complete a Request.

    \return bool if request completed 

*/

bool CServiceSymbianSession::completeRequest()

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::completeRequest");

    XQSERVICE_DEBUG_PRINT("iData: %s", iData.constData());

    TPtrC8 data(reinterpret_cast<const TUint8*> (iData.constData()), iData.length());

    iMessage.Complete(data.Length());

    return true;

}

/*!

    Close a session and gracefully shutdown.

*/

void CServiceSymbianSession::close()

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::close");

    // Symbian doens't really do anything

}

/*!

    From CSession2.

    Service request.

    \param aMessage Message object.

*/

void CServiceSymbianSession::ServiceL(const RMessage2& aMessage)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::ServiceL");

    // Default ServiceErrorL() will complete the message if this method leaves

    TInt operation(aMessage.Function());

    XQSERVICE_DEBUG_PRINT("operation: %d", operation);

    switch (operation) {

    case KIPCNewOperation:

    case KIPCOperationWithSharableFile:

    {

        handleRequestL(aMessage);

        break;

    }

    case KIPCGetData: {

        handleGetBufferL(aMessage);

        break;

    }

    case KIPCCancelAsync: {

        if (iCurRequest) {

            // Inform also observer, that current pending  request is about to go

            iObserver->handleCancelRequest(iCurRequest);

            iCurRequest->completeRequest();

        }

        aMessage.Complete(KErrCancel);

        break;

    }

    default: {

        aMessage.Complete(KErrNotFound);

        break;

    }

    }

}

/*!

    From CSession2.

    Handle any disconnection from the client.

    \param aMessage Message object.

*/

void CServiceSymbianSession::Disconnect(const RMessage2 &aMessage)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::Disconnect");

    CSession2::Disconnect(aMessage);

}

/*!

    Handle an IPC request.

    \param aMessage Message object.

*/

void CServiceSymbianSession::handleRequestL(const RMessage2& aMessage)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::handleRequestL");

    // Store the message

    iMessage = aMessage;

    // Convert from Symbian to QT

    HBufC* request = ReadDesLC(aMessage, 0);

    HBufC8* data = ReadDes8LC(aMessage, 1);

    XQSharableFile *file = 0;

    if (aMessage.Function() == KIPCOperationWithSharableFile)

    {

        // Only one file support now !

        file = new XQSharableFile();

        AdoptSharableFile(aMessage, file);

    }

    // Shallow copy only, we want a deep copy

    QString d = QString::fromUtf16(request->Ptr(), request->Length());

    QString operation;

    operation += d;

    XQSERVICE_DEBUG_PRINT("operation: %s", qPrintable(operation));

    //QByteArray convertData;

    TPtr8 ptr8(data->Des());

    const char* ptrz = reinterpret_cast<const char*> (ptr8.PtrZ());

    //convertData.append(ptrz);

	QByteArray convertData(ptrz,data->Length());

	XQSERVICE_DEBUG_PRINT("convertData: %s", convertData.constData());

    // New request

    if (iCurRequest) {

        iObserver->handleDeleteRequest(iCurRequest); 

        delete iCurRequest;

    }

    iCurRequest = NULL;

    iCurRequest = new ServiceIPCRequest(this, 0, operation);

    iData.clear();

    // Get client info

    ClientInfo *client = new ClientInfo();

    client->setProcessId(aMessage.SecureId().iId);

    client->setVendorId(aMessage.VendorId().iId);

    RThread clientThread;

    aMessage.ClientL(clientThread);

    RProcess clientProc;

    clientThread.Process(clientProc);

    client->setName(QString::fromUtf16(clientProc.Name().Ptr(), 

                                       clientProc.Name().Length()));

    client->setCapabilities(ClientCapabilities(aMessage));

    clientThread.Close();

    // Set the picked sharable file if any

    if (file != 0)

    {

        // Support only one sharable file

        iCurRequest->addSharableFile(file, 0);

    }

    // Add data and callback to the observer

    // 

    iCurRequest->addRequestdata(convertData);

    iCurRequest->setClientInfo(client); // ownership passed

    iObserver->handleRequest(iCurRequest);

    CleanupStack::PopAndDestroy(2, request);

}

/*!

    Handle getting the result buffer.

    \param aMessage Message object.

*/

void CServiceSymbianSession::handleGetBufferL(const RMessage2& aMessage)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::handleGetBufferL");

    XQSERVICE_DEBUG_PRINT("iData: %s", iData.constData());

    TPtrC8 data(reinterpret_cast<const TUint8*> (iData.constData()), iData.length());

    TInt err = aMessage.Write(0, data);

    aMessage.Complete(err);

}

/*!

    Read a 16 bit descriptor from the message.

    \param aMessage Message to read from.

    \param aMsgSlot Slot to read from.

 */

HBufC* CServiceSymbianSession::ReadDesLC(const RMessage2& aMessage,

                                         TInt aMsgSlot)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::ReadDesLC");

    TInt length = aMessage.GetDesLengthL(aMsgSlot);

    HBufC* des = HBufC::NewLC(length);

    TPtr ptr = des->Des();

    aMessage.ReadL(aMsgSlot, ptr);

    return des;

}

/*!

    Read a 8 bit descriptor from the message.

    \param aMessage Message to read from.

    \param aMsgSlot Slot to read from.

*/

HBufC8* CServiceSymbianSession::ReadDes8LC(const RMessage2& aMessage,

                                           TInt aMsgSlot)

{

    XQSERVICE_DEBUG_PRINT("CServiceSymbianSession::ReadDes8LC");

    TInt length = aMessage.GetDesLengthL(aMsgSlot);

    HBufC8* des = HBufC8::NewLC(length + 1); // 1 more for null terminator

    TPtr8 ptr = des->Des();

    aMessage.ReadL(aMsgSlot, ptr);

    return des;

}

// Sharable file utility

const TInt KRFsSlot = 2;

const TInt KRFileSlot = 3;

bool AdoptSharableFile(const RMessage2& aMsg, XQSharableFile *file)

{

    XQSERVICE_DEBUG_PRINT("AdoptSharableFile");

    RFile handle;

    TInt err = handle.AdoptFromClient(aMsg, KRFsSlot, KRFileSlot);

    bool ret = (err == KErrNone);

     if (ret)

    {

        file->setHandle(handle);

    }

    // On error the handle remains invalid !

    return ret;

}

/*!

    Get client capabilities from the IPC request.

*/

quint32 ClientCapabilities(const RMessage2& aMsg)

{

    quint32 caps = 0;

    for(int i = 0; i < ECapability_Limit; i++)

    {

        if (aMsg.HasCapability(static_cast<TCapability>(i)))

        {

            caps |= 1 << i;

        }

    }

    return caps;

}

}

// END OF FILE