pjsip-pjproject/pjsip/include/pjsip-simple/mwi.h

212 lines
8.0 KiB
C

/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PJSIP_SIMPLE_MWI_H__
#define __PJSIP_SIMPLE_MWI_H__
/**
* @file mwi.h
* @brief SIP Extension for MWI (RFC 3842)
*/
#include <pjsip-simple/evsub.h>
#include <pjsip/sip_msg.h>
PJ_BEGIN_DECL
/**
* @defgroup mwi SIP Message Summary and Message Waiting Indication (RFC 3842)
* @ingroup PJSIP_SIMPLE
* @brief Support for SIP MWI Extension (RFC 3842)
* @{
*
* This module implements RFC 3842: A Message Summary and Message Waiting
* Indication Event Package for the Session Initiation Protocol (SIP).
* It uses the SIP Event Notification framework (evsub.h) and extends the
* framework by implementing "message-summary" event package.
*/
/**
* Initialize the MWI module and register it as endpoint module and
* package to the event subscription module.
*
* @param endpt The endpoint instance.
* @param mod_evsub The event subscription module instance.
*
* @return PJ_SUCCESS if the module is successfully
* initialized and registered to both endpoint
* and the event subscription module.
*/
PJ_DECL(pj_status_t) pjsip_mwi_init_module(pjsip_endpoint *endpt,
pjsip_module *mod_evsub);
/**
* Get the MWI module instance.
*
* @return The MWI module instance.
*/
PJ_DECL(pjsip_module*) pjsip_mwi_instance(void);
/**
* Create MWI client subscription session.
*
* @param dlg The underlying dialog to use.
* @param user_cb Pointer to callbacks to receive MWI subscription
* events.
* @param options Option flags. Currently only PJSIP_EVSUB_NO_EVENT_ID
* is recognized.
* @param p_evsub Pointer to receive the MWI subscription
* session.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_mwi_create_uac( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
unsigned options,
pjsip_evsub **p_evsub );
/**
* Create MWI server subscription session.
*
* @param dlg The underlying dialog to use.
* @param user_cb Pointer to callbacks to receive MWI subscription
* events.
* @param rdata The incoming SUBSCRIBE request that creates the event
* subscription.
* @param p_evsub Pointer to receive the MWI subscription
* session.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_mwi_create_uas( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
pjsip_rx_data *rdata,
pjsip_evsub **p_evsub );
/**
* Forcefully destroy the MWI subscription. This function should only
* be called on special condition, such as when the subscription
* initialization has failed. For other conditions, application MUST terminate
* the subscription by sending the appropriate un(SUBSCRIBE) or NOTIFY.
*
* @param sub The MWI subscription.
* @param notify Specify whether the state notification callback
* should be called.
*
* @return PJ_SUCCESS if subscription session has been destroyed.
*/
PJ_DECL(pj_status_t) pjsip_mwi_terminate( pjsip_evsub *sub,
pj_bool_t notify );
/**
* Call this function to create request to initiate MWI subscription, to
* refresh subcription, or to request subscription termination.
*
* @param sub Client subscription instance.
* @param expires Subscription expiration. If the value is set to zero,
* this will request unsubscription. If the value is
* PJSIP_EXPIRES_NOT_SPECIFIED, default expiration
* as defined by the package will be used.
* @param p_tdata Pointer to receive the request.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_mwi_initiate( pjsip_evsub *sub,
pj_uint32_t expires,
pjsip_tx_data **p_tdata);
/**
* Accept the incoming subscription request by sending 2xx response to
* incoming SUBSCRIBE request.
*
* @param sub Server subscription instance.
* @param rdata The incoming subscription request message.
* @param st_code Status code, which MUST be final response.
* @param hdr_list Optional list of headers to be added in the response.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_mwi_accept( pjsip_evsub *sub,
pjsip_rx_data *rdata,
int st_code,
const pjsip_hdr *hdr_list );
/**
* For notifier, create NOTIFY request to subscriber, and set the state
* of the subscription.
*
* @param sub The server subscription (notifier) instance.
* @param state New state to set.
* @param state_str The state string name, if state contains value other
* than active, pending, or terminated. Otherwise this
* argument is ignored.
* @param reason Specify reason if new state is terminated, otherwise
* put NULL.
* @param mime_type MIME type/content type of the message body.
* @param body Message body to be included in the NOTIFY request,
* if NULL, the last body will be used. Note that
* the mime_type must also be set when body is not NULL.
* @param p_tdata Pointer to receive the request.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_mwi_notify( pjsip_evsub *sub,
pjsip_evsub_state state,
const pj_str_t *state_str,
const pj_str_t *reason,
const pjsip_media_type *mime_type,
const pj_str_t *body,
pjsip_tx_data **p_tdata);
/**
* Create NOTIFY request containing message body from the last NOITFY
* message created.
*
* @param sub Server subscription object.
* @param p_tdata Pointer to receive request.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_mwi_current_notify( pjsip_evsub *sub,
pjsip_tx_data **p_tdata );
/**
* Send request message that was previously created with initiate(), notify(),
* or current_notify(). Application may also send request created with other
* functions, e.g. authentication. But the request MUST be either request
* that creates/refresh subscription or NOTIFY request.
*
* @param sub The subscription object.
* @param tdata Request message to be sent.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_mwi_send_request( pjsip_evsub *sub,
pjsip_tx_data *tdata );
/**
* @}
*/
PJ_END_DECL
#endif /* __PJSIP_SIMPLE_MWI_H__ */