/*

* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

//  INCLUDE FILES

#include "satdatadownload.h"    // sat datadownload class

#include "satmesshandler.h"     // sat message handler class

#include "satmessaging.h"       // sat messaging class

#include "ber_tlv.h"            // sat ber-tlv classes

#include "satutil.h"            // sat utility class

#include <pn_const.h>           // server id constants

#include <tisi.h>               // isi message

#include <smsisi.h>             // sms server

#include <etelmm.h>             // etel multimode api

#include <uiccisi.h>            // UICC server

#ifdef OST_TRACE_COMPILER_IN_USE

#endif

// CONSTANTS

// Temporary TPDU data store buffer

const TUint8 KTtpduMaxSize               = 255;

// Cell Broadcast isi msg length

const TUint8 KCbsMsgMaxLength           = 92;

// Max address length

const TUint8 KAddrMaxLength             = 255;

// ParamIndicator value

const TUint8 KParamIndicators           = 7;

// ParamIndicator length

const TUint8 KParamIndicatorsLength     = 1;

// Max Info Length

const TUint8 KMaxInfoLength             = 82;

// SMS Delivery report buffer size

const TUint8 KDeliveryReportSize        = 248;

// ==================== MEMBER FUNCTIONS ====================================

// -----------------------------------------------------------------------------

// CSatDataDownload::CSatDataDownload

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CSatDataDownload::CSatDataDownload

        (

        CSatMessHandler* aSatMessHandler,

        CTsySatMessaging* aSatMessaging

        )

        :

        iSatMessHandler( aSatMessHandler ),

        iSatMessaging( aSatMessaging ),

        iSmsPpProtocolId( KZero ),

        iSmsPpDcs( KZero ),

        iSmsPpTransactionId( KZero ),

        iSmsPpDdOngoing( EFalse ), // No SMS PP DD on going during construction

        iSmsPpDdSupported( ETrue ) // Most likely SIM supports SMS PP DD

    {

    OstTrace0( TRACE_NORMAL, CSATDATADOWNLOAD_CSATDATADOWNLOAD, "CSatDataDownload::CSatDataDownload" );

    }

// -----------------------------------------------------------------------------

// CSatDataDownload::ConstructL

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void CSatDataDownload::ConstructL()

    {

    OstTrace0( TRACE_NORMAL, CSATDATADOWNLOAD_CONSTRUCTL, "CSatDataDownload::ConstructL" );

    }

// -----------------------------------------------------------------------------

// CSatDataDownload::NewL

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CSatDataDownload* CSatDataDownload::NewL

        (

        CSatMessHandler*    aSatMessHandler,

        CTsySatMessaging*   aSatMessaging

        )

    {

    OstTrace0( TRACE_NORMAL, CSATDATADOWNLOAD_NEWL, "CSatDataDownload::NewL" );

    TFLOGSTRING("TSY: CSatDataDownload::NewL");

    CSatDataDownload* self =

        new ( ELeave ) CSatDataDownload( aSatMessHandler, aSatMessaging );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// -----------------------------------------------------------------------------

// CSatDataDownload::~CSatDataDownload

// C++ destructor

// -----------------------------------------------------------------------------

//

CSatDataDownload::~CSatDataDownload()

    {

    OstTrace0( TRACE_NORMAL, DUP1_CSATDATADOWNLOAD_CSATDATADOWNLOAD, "CSatDataDownload::~CSatDataDownload" );

    TFLOGSTRING("TSY: CSatDataDownload::~CSatDataDownload");

    }

// -----------------------------------------------------------------------------

// CSatDataDownload::UiccCatRespEnvelopeReceived

// Breaks a ISI message data notification from Sim server

// -----------------------------------------------------------------------------

//

void CSatDataDownload::UiccCatRespEnvelopeReceived(

    const TIsiReceiveC& aIsiMessage

    )

    {

    OstTrace0( TRACE_NORMAL, CSATDATADOWNLOAD_UICCCATRESPENVELOPERECEIVED, "CSatDataDownload::UiccCatRespEnvelopeReceived" );

    TFLOGSTRING("TSY:CSatDataDownload::UiccCatRespEnvelopeReceived");

    TUint8 status( aIsiMessage.Get8bit(

        ISI_HEADER_SIZE + UICC_CAT_RESP_OFFSET_STATUS ) );

    TUint8 sw1( 0 );

    TUint8 sw2( 0 );

    TPtrC8 apduData;

    if ( UICC_STATUS_OK == status )

        {

        TUint uiccSbApduOffset( 0 );

        if ( KErrNone == aIsiMessage.FindSubBlockOffsetById(

            ISI_HEADER_SIZE + SIZE_UICC_CAT_RESP,

            UICC_SB_APDU,

            EIsiSubBlockTypeId16Len16,

            uiccSbApduOffset ) )

            {

            TUint16 apduLength( aIsiMessage.Get16bit(

                uiccSbApduOffset + UICC_SB_APDU_OFFSET_APDULENGTH ) );

            apduData.Set( aIsiMessage.GetData(

                uiccSbApduOffset + UICC_SB_APDU_OFFSET_APDU,

                apduLength ) );

            // Status bytes are two last bytes in APDU

            TUint8 sw1( apduData[apduLength - 2] );

            TUint8 sw2( apduData[apduLength - 1] );

            }

        else // Subblock is mandatory

            {

            TFLOGSTRING("TSY: CSatMessHandler::UiccCatRespEnvelopeReceived - Mandatory subblock UICC_SB_APDU not found");

            OstTrace0( TRACE_NORMAL, DUP1_CSATDATADOWNLOAD_UICCCATRESPENVELOPERECEIVED, "CSatDataDownload::UiccCatRespEnvelopeReceived- Mandatory subblock UICC_SB_APDU not found" );

            }

        }

    // Create delivery report according to SW result

    if ( KError != TSatUtility::Sw1Sw2Check( sw1, sw2 ) )

        {

        TFLOGSTRING("TSY: CSatDataDownload::UiccCatRespEnvelopeReceived, OK");

        OstTrace0( TRACE_NORMAL, DUP2_CSATDATADOWNLOAD_UICCCATRESPENVELOPERECEIVED, "CSatDataDownload::UiccCatRespEnvelopeReceived" );

        BuildSimMsgReport( ENone, apduData );

        }

    else if ( KAtkSwDataNtfSw1busy == sw1 )

        {

        TFLOGSTRING("TSY:CSatDataDownload::UiccCatRespEnvelopeReceived, SIM Busy");

        OstTrace0( TRACE_NORMAL, DUP3_CSATDATADOWNLOAD_UICCCATRESPENVELOPERECEIVED, "CSatDataDownload::UiccCatRespEnvelopeReceived" );

        BuildSimMsgReport( ESatBusy, apduData );

        }

    else

        {

        TFLOGSTRING("TSY:CSatDataDownload::UiccCatRespEnvelopeReceived, Data Download Error");

        OstTrace0( TRACE_NORMAL, DUP4_CSATDATADOWNLOAD_UICCCATRESPENVELOPERECEIVED, "CSatDataDownload::UiccCatRespEnvelopeReceived" );

        BuildSimMsgReport( ESatDlError, apduData );

        }

    }

// -----------------------------------------------------------------------------

// CSatDataDownload::BuildSmsSimReport

// Creates a SMS PP DD delivery report

// -----------------------------------------------------------------------------

//

void CSatDataDownload::BuildSimMsgReport

        (

        const TTpFailure aTpFailure,

        const TDesC8& aUserData

        )

    {

    OstTraceExt2( TRACE_NORMAL, CSATDATADOWNLOAD_BUILDSIMMSGREPORT, "CSatDataDownload::BuildSimMsgReport TpFailure: %{TTpFailure}, UserDataLen: %d", aTpFailure, aUserData.Length() );

    TFLOGSTRING3("TSY:CSatDataDownload::BuildSimMsgReport TpFailure: %x, UserDataLen: %d", aTpFailure, aUserData.Length() );

    // Select Cause and CauseType according to routing result

    TUint8 causeType( ENone == aTpFailure ?

        SMS_CAUSE_TYPE_COMMON : SMS_CAUSE_TYPE_EXT );

    TUint8 smsCause( ENone == aTpFailure ?

        SMS_OK : SMS_ERR_PP_RESERVED );

    TUint16 dataLen( aUserData.Length() );

    // SMS_RECEIVED_MSG_REPORT_REQ- first subblock is needed when:

    //  1) Delivery of SMS PP failed

    // second and third subblock is added when

    //  2)  SIM provided data in AtkSwDataNtf

    // Create SMS_RECEIVED_MSG_REPORT_REQ message

    TBuf8<KDeliveryReportSize> msgBuffer;

    TIsiSend reportReq( msgBuffer );

    // Report has following structure:

    // SMS_RECEIVED_MSG_REPORT_REQ   (Minimum, OK case AND no SIM Data)

    // + SMS_SB_DELIVER_REPORT       (optional  Added when reception is not OK)

    //   + SMS_SB_PARAM_INDICATOR    (optional, Added when user data is not empty )

    //     + SMS_SB_USER_DATA        (optional, Response user data is put here)

    // SMS_RECEIVED_MSG_REPORT_REQ header

    msgBuffer.Append( causeType );

    msgBuffer.Append( smsCause );

    msgBuffer.AppendFill( KPadding, 3 );

    msgBuffer.Append( 0 );           // no of sublocks

    // Add SMS_SB_DELIVER_REPORT subblock if any failure is there

    if( ENone != aTpFailure )

        {

        TFLOGSTRING("TSY:CSatDataDownload::BuildSimMsgReport \

                 Adding SMS_SB_DELIVER_REPORT" );

        OstTrace0( TRACE_NORMAL, DUP1_CSATDATADOWNLOAD_BUILDSIMMSGREPORT, "CSatDataDownload::BuildSimMsgReport Adding SMS_SB_DELIVER_REPORT" );

        TIsiSubBlock deliverReport( msgBuffer, SMS_SB_DELIVER_REPORT,EIsiSubBlockTypeId16Len16 );

        // set message parameters zero as in S40 ATK server also

        // First octet of SMS-Deliver-Report TPDU. Contains TP-UDHI and TP-MTI

        // elements. See 3GPP TS 23.040 chapter 9.2.2.1a (i) and (ii)

        // SMS-DELIVER-REPORT for RP-ACK and RP-ERROR.

        msgBuffer.Append( 0x00 ); // SMS_MTI_DELIVER_REPORT

        msgBuffer.Append( aTpFailure ); // GSM-TP Failure cause

        msgBuffer.AppendFill( KPadding, 2);

        // Increment number of subblock

        msgBuffer[5]++;

        deliverReport.CompleteSubBlock();

        }

    // Add SMS_SB_PRSM_INDICATOR and SMS_SB_USER_DATA subblock

    if ( dataLen )

        {

        TFLOGSTRING("TSY:CSatDataDownload::BuildSimMsgReport \

              Adding SMS_SB_PARAM_INDICATOR & SMS_SB_USER_DATA" );

        OstTrace0( TRACE_NORMAL, DUP2_CSATDATADOWNLOAD_BUILDSIMMSGREPORT, "CSatDataDownload::BuildSimMsgReport Adding SMS_SB_PARAM_INDICATOR AND SMS_SB_USER_DATA" );

        // Add two more Sublock:

        // SMS_SB_PARAM_INDICATOR

        /////////////////////////

        TIsiSubBlock paramInd( msgBuffer, SMS_SB_PARAM_INDICATOR,

                EIsiSubBlockTypeId16Len16 );

        msgBuffer.Append( iSmsPpProtocolId );

        msgBuffer.Append( iSmsPpDcs );

        msgBuffer.Append( KParamIndicatorsLength ); // = 1

        msgBuffer.Append( KParamIndicators ); // All selected (=7)

        // Increment number of subblock

        msgBuffer[5]++;

        paramInd.CompleteSubBlock();

        // SMS_SB_USER_DATA (subblock for TPDU data)

        //////////////////

        TIsiSubBlock userData( msgBuffer, SMS_SB_USER_DATA,

                EIsiSubBlockTypeId16Len16 );

        // data length

        // to append MSB byte

        msgBuffer.Append( dataLen >> 8 );

        msgBuffer.Append( dataLen );

        // Append for character count on basis of DCS used

        TUint16 dataLengthInOctets = 0;

        TUint8 aDefaultAlphabet = ( iSmsPpDcs && 0x0C) ;

        if( !aDefaultAlphabet )

            {

            dataLengthInOctets =  ( ( dataLen + 1 ) * 7 ) / 8 ;

            }

        else

            {

            dataLengthInOctets = dataLen;

            }

        // To append MSB byte

        msgBuffer.Append( dataLengthInOctets >> 8 );

        msgBuffer.Append( dataLengthInOctets );

        // Append whole msg or SMS_GSM_DELIVER_ACK_UD_MAX_LEN bytes

        msgBuffer.Append( aUserData.Left(Min( dataLen,

                SMS_COMMAND_DATA_MAX_LEN ) ) );

        // Increment number of subblock

        msgBuffer[5]++;

        userData.CompleteSubBlock();

        }

    iSatMessHandler->SendSmsReportReq( iSatMessaging->GetTransactionId(),

            msgBuffer );

    }

// -----------------------------------------------------------------------------

// CSatDataDownload::CellBroadcastReceived

// Breaks a cell broadcast isi message coming from network.

// Calls SendEnvelopeForCellBroadcast in order to send the envelope to

// SIM server

// -----------------------------------------------------------------------------

//

void CSatDataDownload::CellBroadcastReceived

        (

        const TIsiReceiveC& aIsiMessage // SMS_GSM(_TEMP)_CB_ROUTING_NTF

        )

    {

    OstTrace0( TRACE_NORMAL, CSATDATADOWNLOAD_CELLBROADCASTRECEIVED, "CSatDataDownload::CellBroadcastReceived" );

    TFLOGSTRING( "TSY:CSatDataDownload::CellBroadcastReceived" );

    TBuf8<KCbsMsgMaxLength> cbsMsg;

    // For each subblock i

    //     Check whether the CB message id of this subblock is allowed:

    //     if allowed,

    //          - Retrieve the infoLenght byte B

    //          - if B==0xFF, then this is a GSM CB DDL message

    //          - otherwise this is a WCDMA CD DDL message (0<B<83)

    //              and the content of message must be truncated to B bytes,

    //              the unused bytes (B+1 to 82) must be filled with zeros.

    //          - send envelope containing Page data

    // End

    TInt sbNumber( aIsiMessage.Get8bit(

        ISI_HEADER_SIZE + SMS_CB_SIM_ROUTING_IND_OFFSET_SUBBLOCKCOUNT ) );

    TUint startsbOffset( 0 );

    if ( KErrNone == aIsiMessage.FindSubBlockOffsetById(

            ISI_HEADER_SIZE + SIZE_SMS_CB_SIM_ROUTING_IND ,

            SMS_SB_CB_MESSAGE,

            EIsiSubBlockTypeId16Len16,

            startsbOffset ) )

        {

        TUint sbOffset( 0 );

        for ( TInt sb( 1 ); sb < sbNumber; sb++ )

            {

            // fill cbsMsg block with 0

            cbsMsg.Zero();

            if ( KErrNone == aIsiMessage.FindSubBlockOffsetByIndex(

                    startsbOffset ,

                    sb,

                    EIsiSubBlockTypeId16Len16,

                    sbOffset ) )

                {

                //Append Serial number

                cbsMsg.Append( ( aIsiMessage.Get16bit(

                        sbOffset + SMS_SB_CB_MESSAGE_OFFSET_SERIALNUMBER )>> 8) );

                cbsMsg.Append( aIsiMessage.Get16bit(

                        sbOffset + SMS_SB_CB_MESSAGE_OFFSET_SERIALNUMBER ) );

                // Append CB Message id

                cbsMsg.Append( aIsiMessage.Get16bit(

                        sbOffset + SMS_SB_CB_MESSAGE_OFFSET_CBMESSAGEID )>> 8 );

                cbsMsg.Append( aIsiMessage.Get16bit(

                        sbOffset + SMS_SB_CB_MESSAGE_OFFSET_CBMESSAGEID ) );

                // Append Data Coding scheme

                cbsMsg.Append( aIsiMessage.Get8bit(

                        sbOffset + SMS_SB_CB_MESSAGE_OFFSET_DATACODINGSCHEME ) );

                // Append Page

                cbsMsg.Append( aIsiMessage.Get8bit(

                        sbOffset + SMS_SB_CB_MESSAGE_OFFSET_PAGE ) );

                // Append data length

                TUint8 infoLength( aIsiMessage.Get8bit(

                        sbOffset + SMS_SB_CB_MESSAGE_OFFSET_INFOLENGTH ) );

                if ( KMaxInfoLength < infoLength )

                    {

                    // CB message max length is 82. Info length may contain

                    // value 0xFF, which means that length should be ignored.

                    // Inthis case maximum is used.

                    infoLength = SMS_CB_MESSAGE_CONTENT_SIZE; // 82

                    }

                // Append the message content and fill with zeroes if necessary

                cbsMsg.AppendJustify( aIsiMessage.GetData( sbOffset +

                        SMS_SB_CB_MESSAGE_OFFSET_CONTENTOFMESSAGE, infoLength ),

                        SMS_CB_MESSAGE_CONTENT_SIZE, ELeft, KPadding );

                SendCellBroadcastDdlEnvelope(

                        iSatMessaging->GetTransactionId(),

                        cbsMsg );

                }

            }

        }

    }

// -----------------------------------------------------------------------------

// CSatDataDownload::SmsSimMsgIndReceived

// Breaks a sms point to point isi message

// Sends envelope

// -----------------------------------------------------------------------------

//

void CSatDataDownload::SmsSimMsgIndReceived

        (

         const TIsiReceiveC& aIsiMessage

        )

    {

    OstTrace0( TRACE_NORMAL, CSATDATADOWNLOAD_SMSSIMMSGINDRECEIVED, "CSatDataDownload::SmsSimMsgIndReceived" );

    TFLOGSTRING( "TSY:CSatDataDownload::SmsSimMsgIndReceived" );

    TBuf8<KAddrMaxLength> bcdSmscAddress;          // to store Service centre number

    TBuf8<KTtpduMaxSize> smsTpdu;                  // Temporary buffer to store TPDU data

    TUint sbDeliver( 0 );

    // Check for correct subblock SMS_SB_ADDRESS

    if( KErrNone == aIsiMessage.FindSubBlockOffsetById(

         ISI_HEADER_SIZE + SIZE_SMS_RECEIVED_SIM_MSG_IND,

         SMS_SB_ADDRESS,

         EIsiSubBlockTypeId16Len16,

         sbDeliver ) )

        {

        TUint8 addressLen( aIsiMessage.Get8bit(

            sbDeliver + SMS_SB_ADDRESS_OFFSET_ADDRESSDATALENGTH ) );

        // Service centre Address  append in bcdSmscAddress buffer

        // If address type is SMS_SMSC_ADDRESS, addtional length is

        // included in addres data. Let's omit that.

        TUint8 addressType( aIsiMessage.Get8bit(

            sbDeliver + SMS_SB_ADDRESS_OFFSET_ADDRESSTYPE ) );

        if ( SMS_SMSC_ADDRESS == addressType )

            {

             bcdSmscAddress.Append( aIsiMessage.GetData(

                 sbDeliver + SMS_SB_ADDRESS_OFFSET_ADDRESSDATA + 1,

                 addressLen - 1 ) );

            }

        }

    // Check for correct Subblock SMS_SB_TPDU

    if ( KErrNone == aIsiMessage.FindSubBlockOffsetById(

            ISI_HEADER_SIZE + SIZE_SMS_RECEIVED_SIM_MSG_IND,

            SMS_SB_TPDU,

            EIsiSubBlockTypeId16Len16,

            sbDeliver ) )

        {

        // Read user data length

        TUint8 userDataLen( aIsiMessage.Get8bit(

            sbDeliver + SMS_SB_TPDU_OFFSET_DATALENGTH ) );

        // SMS_SB_TPDU subblock,

        // which contain the message payload data.

        smsTpdu.Append( aIsiMessage.GetData(

            sbDeliver + SMS_SB_TPDU_OFFSET_DATABYTES, userDataLen ));

        // Destination Address Length

        // 1st Byte of destination address contains no os semioctets 

        //in address bytes

        // +1 to calculate correct nos of bytes in address

        // divide by 2 to convert semioctets to no of octets

        // +2 to add type of address byte and no of

        TUint8 tpduIndexCalc( ( ( smsTpdu[1] + 1 )/2 ) + 2 ); 

        // Storing protocol id and datacoding scheme from TPDU data buffer

        iSmsPpProtocolId = smsTpdu[ tpduIndexCalc + 1 ];

        iSmsPpDcs = smsTpdu[ tpduIndexCalc + 2 ];

        }

    // Either Envelope sending or SMS storing is going on

    iSmsPpDdOngoing = ETrue;

    if( iSmsPpDdSupported ) // Check for SMS PP-DATA Download supported

        {

        TFLOGSTRING( "TSY:CSatDataDownload::SmsSimMsgIndReceived SMS SIM Supported, sending Envelope..." );

        OstTrace0( TRACE_NORMAL, DUP1_CSATDATADOWNLOAD_SMSSIMMSGINDRECEIVED, "CSatDataDownload::SmsSimMsgIndReceived SMS Sim Supported, sending Envelope..." );

        iSmsPpTransactionId = iSatMessaging->GetTransactionId();

        // Data Download supported, send envelope

        SendSmsPpDdlEnvelope(

            iSmsPpTransactionId,

            bcdSmscAddress,

            smsTpdu );

        }

    else

        {

        TFLOGSTRING( "TSY:CSatDataDownload::SmsSimMsgIndReceived SMS SIM not supported, storing SMS..." );

        OstTrace0( TRACE_NORMAL, DUP2_CSATDATADOWNLOAD_SMSSIMMSGINDRECEIVED, "CSatDataDownload::SmsSimMsgIndReceived SMS SIM not supported, storing SMS..." );

        // Save the SMS instead.

        RMobileSmsStore::TMobileGsmSmsEntryV1 smsEntry;

        // if SMSC present

        if ( bcdSmscAddress.Length() )

            {

            // TON & NPI, stored in first index

            TSatUtility::GetTonAndNpi(

                bcdSmscAddress[0],

                smsEntry.iServiceCentre.iTypeOfNumber,

                smsEntry.iServiceCentre.iNumberPlan );

            // SMSC Address, exclude TON/NPI

            TBuf8<KAddrMaxLength> scAscii;

            TSatUtility::BCDToAscii( bcdSmscAddress.Mid( 1 ), scAscii );

             smsEntry.iServiceCentre.iTelNumber.Copy( scAscii );

            }

        //  TPDU data

        smsEntry.iMsgData.Copy( smsTpdu );

        // Store SMS