D-Modem/pjproject-2.11.1/pjsip/include/pjsip/sip_multipart.h
2021-10-29 14:41:03 -04:00

194 lines
5.2 KiB
C

/* $Id$ */
/*
* 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_SIP_MULTIPART_H__
#define __PJSIP_SIP_MULTIPART_H__
/**
* @file pjsip/sip_multipart.h
* @brief Multipart support.
*/
#include <pjsip/sip_msg.h>
PJ_BEGIN_DECL
/**
* @defgroup PJSIP_MULTIPART Multipart message bodies.
* @ingroup PJSIP_MSG
* @brief Support for multipart message bodies.
* @{
*/
/**
* This structure describes the individual body part inside a multipart
* message body. It mainly contains the message body itself and optional
* headers.
*/
typedef struct pjsip_multipart_part
{
/**
* Standard list element.
*/
PJ_DECL_LIST_MEMBER(struct pjsip_multipart_part);
/**
* Optional message headers.
*/
pjsip_hdr hdr;
/**
* Pointer to the message body.
*/
pjsip_msg_body *body;
} pjsip_multipart_part;
/**
* Create an empty multipart body.
*
* @param pool Memory pool to allocate memory from.
* @param ctype Optional MIME media type of the multipart
* bodies. If not specified, "multipart/mixed"
* will be used.
* @param boundary Optional string to be set as part boundary.
* The boundary string excludes the leading
* hyphens. If this parameter is NULL or empty,
* a random boundary will be generated.
*
* @return Multipart body instance with no part.
*/
PJ_DECL(pjsip_msg_body*) pjsip_multipart_create(pj_pool_t *pool,
const pjsip_media_type *ctype,
const pj_str_t *boundary);
/**
* Create an empty multipart part.
*
* @param pool The memory pool.
*
* @return The multipart part.
*/
PJ_DECL(pjsip_multipart_part*) pjsip_multipart_create_part(pj_pool_t *pool);
/**
* Perform a deep clone to a multipart part.
*
* @param pool The memory pool.
* @param part The part to be duplicated.
*
* @return Copy of the multipart part.
*/
PJ_DECL(pjsip_multipart_part*)
pjsip_multipart_clone_part(pj_pool_t *pool,
const pjsip_multipart_part *part);
/**
* Add a part into multipart bodies.
*
* @param pool The memory pool.
* @param mp The multipart bodies.
* @param part The part to be added into the bodies.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_multipart_add_part(pj_pool_t *pool,
pjsip_msg_body *mp,
pjsip_multipart_part *part);
/**
* Get the first part of multipart bodies.
*
* @param mp The multipart bodies.
*
* @return The first part, or NULL if the multipart
* bodies currently doesn't hold any elements.
*/
PJ_DECL(pjsip_multipart_part*)
pjsip_multipart_get_first_part(const pjsip_msg_body *mp);
/**
* Get the next part after the specified part.
*
* @param mp The multipart bodies.
* @param part The part.
*
* @return The next part, or NULL if there is no other part after
* the part.
*/
PJ_DECL(pjsip_multipart_part*)
pjsip_multipart_get_next_part(const pjsip_msg_body *mp,
pjsip_multipart_part *part);
/**
* Find a body inside multipart bodies which has the specified content type.
*
* @param mp The multipart body.
* @param content_type Content type to find.
* @param start If specified, the search will begin at
* start->next. Otherwise it will begin at
* the first part in the multipart bodies.
*
* @return The first part with the specified content type
* if found, or NULL.
*/
PJ_DECL(pjsip_multipart_part*)
pjsip_multipart_find_part( const pjsip_msg_body *mp,
const pjsip_media_type *content_type,
const pjsip_multipart_part *start);
/**
* Parse multipart message.
*
* @param pool Memory pool.
* @param buf Input buffer.
* @param len The buffer length.
* @param ctype Content type of the multipart body.
* @param options Parsing options, must be zero for now.
*
* @return Multipart message body.
*/
PJ_DECL(pjsip_msg_body*) pjsip_multipart_parse(pj_pool_t *pool,
char *buf, pj_size_t len,
const pjsip_media_type *ctype,
unsigned options);
/**
* Get the boundary string and the raw message body of the specified
* multipart message body. Note that raw message body will only be available
* if the multipart message body is generated by pjsip_multipart_parse().
*
* @param mp The multipart message body.
* @param boundary Optional parameter to receive the boundary string.
* @param raw_data Optional parameter to receive the raw message body.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_multipart_get_raw(pjsip_msg_body *mp,
pj_str_t *boundary,
pj_str_t *raw_data);
/**
* @} PJSIP_MULTIPART
*/
PJ_END_DECL
#endif /* __PJSIP_SIP_MULTIPART_H__ */