svcctrl.h

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/*
 * svcctrl.h
 *
 * H.225 Service Control protocol handler
 *
 * Open H323 Library
 *
 * Copyright (c) 2003 Equivalence Pty. Ltd.
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Open H323 Library.
 *
 * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
 * Contributor(s): ______________________________________.
 */

#ifndef OPAL_H323_SVCCTRL_H
#define OPAL_H323_SVCCTRL_H

#ifdef P_USE_PRAGMA
#pragma interface
#endif

#include <opal_config.h>

#if OPAL_H323

class H225_ServiceControlDescriptor;
class H225_ServiceControlIndication;
class H225_ServiceControlResponse;

class H248_SignalsDescriptor;
class H248_SignalRequest;

class H323EndPoint;
class H323Connection;



class H323ServiceControlSession : public PObject
{
    PCLASSINFO(H323ServiceControlSession, PObject);
  public:
    H323ServiceControlSession();

    virtual PBoolean IsValid() const = 0;

    virtual PString GetServiceControlType() const;

    virtual PBoolean OnReceivedPDU(
      const H225_ServiceControlDescriptor & descriptor
    ) = 0;

    virtual PBoolean OnSendingPDU(
      H225_ServiceControlDescriptor & descriptor
    ) const = 0;

    enum ChangeType {
      OpenSession,    // H225_ServiceControlSession_reason::e_open
      RefreshSession, // H225_ServiceControlSession_reason::e_refresh
      CloseSession    // H225_ServiceControlSession_reason::e_close
    };

    virtual void OnChange(
      unsigned type,
      unsigned sessionId,
      H323EndPoint & endpoint,
      H323Connection * connection
    ) const = 0;
};


class H323HTTPServiceControl : public H323ServiceControlSession
{
    PCLASSINFO(H323HTTPServiceControl, H323ServiceControlSession);
  public:
    H323HTTPServiceControl(
      const PString & url
    );

    H323HTTPServiceControl(
      const H225_ServiceControlDescriptor & contents
    );

    virtual PBoolean IsValid() const;

    virtual PString GetServiceControlType() const;

    virtual PBoolean OnReceivedPDU(
      const H225_ServiceControlDescriptor & contents
    );

    virtual PBoolean OnSendingPDU(
      H225_ServiceControlDescriptor & contents
    ) const;

    virtual void OnChange(
      unsigned type,
      unsigned sessionId,
      H323EndPoint & endpoint,
      H323Connection * connection
    ) const;

  protected:
    PString url;
};


class H323H248ServiceControl : public H323ServiceControlSession
{
    PCLASSINFO(H323H248ServiceControl, H323ServiceControlSession);
  public:
    H323H248ServiceControl();

    H323H248ServiceControl(
      const H225_ServiceControlDescriptor & contents
    );

    virtual PBoolean OnReceivedPDU(
      const H225_ServiceControlDescriptor & contents
    );

    virtual PBoolean OnSendingPDU(
      H225_ServiceControlDescriptor & contents
    ) const;

    virtual PBoolean OnReceivedPDU(
      const H248_SignalsDescriptor & descriptor
    );

    virtual PBoolean OnSendingPDU(
      H248_SignalsDescriptor & descriptor
    ) const;

    virtual PBoolean OnReceivedPDU(
      const H248_SignalRequest & request
    ) = 0;

    virtual PBoolean OnSendingPDU(
      H248_SignalRequest & request
    ) const = 0;
};


class H323CallCreditServiceControl : public H323ServiceControlSession
{
    PCLASSINFO(H323CallCreditServiceControl, H323ServiceControlSession);
  public:
    H323CallCreditServiceControl(
      const PString & amount,
      PBoolean mode,
      unsigned duration = 0
    );

    H323CallCreditServiceControl(
      const H225_ServiceControlDescriptor & contents
    );

    virtual PBoolean IsValid() const;

    virtual PBoolean OnReceivedPDU(
      const H225_ServiceControlDescriptor & contents
    );

    virtual PBoolean OnSendingPDU(
      H225_ServiceControlDescriptor & contents
    ) const;

    virtual void OnChange(
      unsigned type,
      unsigned sessionId,
      H323EndPoint & endpoint,
      H323Connection * connection
    ) const;

    const PString & GetAmount() const { return amount; }

    bool GetMode() const { return mode; }

    unsigned GetDurationLimit() const { return durationLimit; }

  protected:
    PString  amount;
    bool     mode;
    unsigned durationLimit;
};


#endif // OPAL_H323

#endif // OPAL_H323_SVCCTRL_H