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123 lines
2.9 KiB
123 lines
2.9 KiB
/*
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* $Id$
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*
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* Copyright (C) 2006 Juha Heinanen
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*
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* This file is part of Kamailio, a free SIP server.
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*
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* Kamailio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* Kamailio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*!
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* \file
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* \brief P-Preferred-Identity header parser
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* \ingroup parser
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*/
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#include "parse_ppi.h"
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#include "../../parser/parse_to.h"
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#include "../../parser/parse_uri.h"
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#include <stdlib.h>
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#include <string.h>
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#include "../../dprint.h"
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#include "../../parser/msg_parser.h"
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#include "../../ut.h"
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#include "errinfo.h"
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#include "../../mem/mem.h"
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/*!
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* \brief This method is used to parse P-Preferred-Identity header (RFC 3325).
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*
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* Currently only one name-addr / addr-spec is supported in the header
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* and it must contain a sip or sips URI.
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* \param msg sip msg
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* \return 0 on success, -1 on failure.
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*/
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int parse_ppi_header( struct sip_msg *msg )
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{
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struct to_body* ppi_b;
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if ( !msg->ppi &&
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(parse_headers(msg, HDR_PPI_F,0)==-1 || !msg->ppi)) {
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goto error;
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}
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/* maybe the header is already parsed! */
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if (msg->ppi->parsed)
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return 0;
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/* bad luck! :-( - we have to parse it */
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/* first, get some memory */
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ppi_b = pkg_malloc(sizeof(struct to_body));
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if (ppi_b == 0) {
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LM_ERR("out of pkg_memory\n");
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goto error;
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}
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/* now parse it!! */
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memset(ppi_b, 0, sizeof(struct to_body));
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parse_to(msg->ppi->body.s,
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msg->ppi->body.s + msg->ppi->body.len+1,
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ppi_b);
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if (ppi_b->error == PARSE_ERROR) {
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LM_ERR("bad P-Preferred-Identity header\n");
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free_to(ppi_b);
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goto error;
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}
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msg->ppi->parsed = ppi_b;
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return 0;
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error:
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return -1;
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}
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/*!
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* \brief Parse P-Preferred-Identity header URI
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*/
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struct sip_uri *parse_ppi_uri(struct sip_msg *msg)
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{
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struct to_body *tb = NULL;
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if(msg==NULL)
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return NULL;
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if(parse_ppi_header(msg)<0)
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{
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LM_ERR("cannot parse P-P-I header\n");
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return NULL;
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}
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if(msg->ppi==NULL || get_ppi(msg)==NULL)
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return NULL;
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tb = get_ppi(msg);
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if(tb->parsed_uri.user.s!=NULL || tb->parsed_uri.host.s!=NULL)
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return &tb->parsed_uri;
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if (parse_uri(tb->uri.s, tb->uri.len , &tb->parsed_uri)<0)
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{
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LM_ERR("failed to parse P-P-I URI\n");
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memset(&tb->parsed_uri, 0, sizeof(struct sip_uri));
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set_err_info(OSER_EC_PARSER, OSER_EL_MEDIUM, "error parsing P-P-I URI");
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set_err_reply(400, "bad P-Preferred-Identity uri");
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return NULL;
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}
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return &tb->parsed_uri;
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}
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