request_winfo.c

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/*
 * $Id: request_winfo.c 1666 2007-03-02 13:40:09Z anca_vamanu $
 *
 * pua_xmpp module - presence SIP - XMPP Gateway
 *
 * Copyright (C) 2007 Voice Sistem S.R.L.
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio 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
 *
 * Kamailio 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
 *
 * History:
 * --------
 *  2007-03-29  initial version (anca)
 */

/*! \file
 * \brief Kamailio pua_xmpp :: Winfo support
 */

#include <stdio.h>
#include <stdlib.h>
#include <libxml/parser.h>

#include "pua_xmpp.h"
#include "request_winfo.h"

#define PRINTBUF_SIZE 256

int request_winfo(struct sip_msg* msg, char* uri, char* expires)
{
   subs_info_t subs;
   struct sip_uri puri;
   int printbuf_len;
   char buffer[PRINTBUF_SIZE];
   str uri_str;

   memset(&puri, 0, sizeof(struct sip_uri));
   if(uri)
   {
      printbuf_len = PRINTBUF_SIZE-1;
      if(pv_printf(msg, (pv_elem_t*)uri, buffer, &printbuf_len)<0)
      {
         LM_ERR("cannot print the format\n");
         return -1;
      }
      if(parse_uri(buffer, printbuf_len, &puri)!=0)
      {
         LM_ERR("bad owner SIP address!\n");
         goto error;
      } else
      {
         LM_DBG("using user id [%.*s]\n", printbuf_len,
               buffer);
      }
   } 
   if(puri.user.len<=0 || puri.user.s==NULL
         || puri.host.len<=0 || puri.host.s==NULL)
   {
      LM_ERR("bad owner URI!\n");
      goto error;
   }
   uri_str.s= buffer;
   uri_str.len=  printbuf_len;
   LM_DBG("uri= %.*s:\n", uri_str.len, uri_str.s);

   memset(&subs, 0, sizeof(subs_info_t));
   
   subs.pres_uri= &uri_str;

   subs.watcher_uri= &uri_str;

   subs.contact= &server_address;
   
   if(strncmp(expires, "0", 1 )== 0)
   {
      subs.expires= 0;
   }
   else
   {
      subs.expires= -1;
   
   }
   /* -1 - for a subscription with no time limit */
   /*  0  -for unsubscribe */

   subs.source_flag |= XMPP_SUBSCRIBE;
   subs.event= PWINFO_EVENT;

   if(pua_send_subscribe(&subs)< 0)
   {
      LM_ERR("while sending subscribe\n");
      goto error;
   }

   return 1;

error:
   return 0;
}