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298 lines
6.4 KiB
298 lines
6.4 KiB
/*
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* XMPP Module
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* This file is part of Kamailio, a free SIP server.
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*
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* Copyright (C) 2006 Voice Sistem S.R.L.
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Author: Andreea Spirea
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*
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*/
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/*! \file
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* \brief Kamailio XMPP module - utilities
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* \ingroup xmpp
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "xmpp.h"
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#include "../../parser/parse_uri.h"
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#include "../../parser/parse_param.h"
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extern param_t *_xmpp_gwmap_list;
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/*! \brief decode sip:user*domain1\@domain2 -> user\@domain1
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* or based on gwmap sip:user\@sipdomain -> user\@xmppdomain
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* \note In many kinds of gateway scenarios, the % sign is a common character used
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* See the MSN XMPP transports for an example.
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*/
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char *decode_uri_sip_xmpp(char *uri)
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{
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sip_uri_t puri;
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static char buf[512];
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char *p;
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param_t *it = NULL;
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if (!uri)
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return NULL;
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if (parse_uri(uri, strlen(uri), &puri) < 0) {
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LM_ERR("failed to parse URI\n");
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return NULL;
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}
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if(_xmpp_gwmap_list==0)
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{
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strncpy(buf, puri.user.s, sizeof(buf));
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buf[puri.user.len] = 0;
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/* replace domain separator */
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if ((p = strchr(buf, domain_separator)))
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*p = '@';
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} else {
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for(it=_xmpp_gwmap_list; it; it=it->next)
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{
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if(it->name.len==puri.host.len
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&& strncasecmp(it->name.s, puri.host.s, it->name.len)==0)
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{
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break;
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}
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}
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if(it && it->body.len>0)
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{
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snprintf(buf, 512, "%.*s@%.*s", puri.user.len, puri.user.s,
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it->body.len, it->body.s);
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} else {
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snprintf(buf, 512, "%.*s@%.*s", puri.user.len, puri.user.s,
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puri.host.len, puri.host.s);
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}
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}
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return buf;
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}
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/*! \brief encode sip:user\@domain -> user*domain\@xmpp_domain
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* or based on gwmap sip:user\@sipdomain -> user\@xmppdomain
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*/
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char *encode_uri_sip_xmpp(char *uri)
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{
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sip_uri_t puri;
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static char buf[512];
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param_t *it = NULL;
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if (!uri)
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return NULL;
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if (parse_uri(uri, strlen(uri), &puri) < 0) {
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LM_ERR("failed to parse URI\n");
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return NULL;
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}
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if(_xmpp_gwmap_list==0)
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{
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snprintf(buf, sizeof(buf), "%.*s%c%.*s@%s",
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puri.user.len, puri.user.s,
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domain_separator,
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puri.host.len, puri.host.s,
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xmpp_domain);
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} else {
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for(it=_xmpp_gwmap_list; it; it=it->next)
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{
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if(it->name.len==puri.host.len
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&& strncasecmp(it->name.s, puri.host.s, it->name.len)==0)
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{
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break;
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}
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}
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if(it && it->body.len>0)
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{
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snprintf(buf, 512, "%.*s@%.*s", puri.user.len, puri.user.s,
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it->body.len, it->body.s);
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} else {
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snprintf(buf, 512, "%.*s@%.*s", puri.user.len, puri.user.s,
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puri.host.len, puri.host.s);
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}
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}
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return buf;
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}
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/*! \brief decode user*domain1\@domain2 -> sip:user\@domain1
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* or based on gwmap sip:user\@xmppdomain -> user\@sipdomain
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*/
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char *decode_uri_xmpp_sip(char *jid)
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{
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static char buf[512];
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char *p;
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char tbuf[512];
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sip_uri_t puri;
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str sd;
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param_t *it = NULL;
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if (!jid)
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return NULL;
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if(_xmpp_gwmap_list==0)
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{
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snprintf(buf, sizeof(buf), "sip:%s", jid);
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/* strip off resource */
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if ((p = strchr(buf, '/')))
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*p = 0;
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/* strip off domain */
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if ((p = strchr(buf, '@')))
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*p = 0;
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/* replace domain separator */
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if ((p = strchr(buf, domain_separator)))
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*p = '@';
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} else {
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snprintf(tbuf, sizeof(tbuf), "sip:%s", jid);
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/* strip off resource */
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if ((p = strchr(tbuf, '/')))
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*p = 0;
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if (parse_uri(tbuf, strlen(tbuf), &puri) < 0) {
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LM_ERR("failed to parse URI\n");
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return NULL;
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}
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for(it=_xmpp_gwmap_list; it; it=it->next)
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{
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if(it->body.len>0)
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{
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sd = it->body;
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} else {
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sd = it->name;
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}
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if(sd.len==puri.host.len
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&& strncasecmp(sd.s, puri.host.s, sd.len)==0)
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{
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break;
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}
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}
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if(it)
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{
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snprintf(buf, 512, "sip:%.*s@%.*s", puri.user.len, puri.user.s,
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it->name.len, it->name.s);
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} else {
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snprintf(buf, 512, "sip:%.*s@%.*s", puri.user.len, puri.user.s,
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puri.host.len, puri.host.s);
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}
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}
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return buf;
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}
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/*! \brief encode user\@domain -> sip:user*domain\@gateway_domain
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* or based on gwmap sip:user\@xmppdomain -> user\@sipdomain
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*/
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char *encode_uri_xmpp_sip(char *jid)
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{
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static char buf[512];
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char *p;
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char tbuf[512];
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sip_uri_t puri;
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str sd;
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param_t *it = NULL;
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if (!jid)
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return NULL;
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if(_xmpp_gwmap_list==0)
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{
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/* TODO: maybe not modify jid? */
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if ((p = strchr(jid, '/')))
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*p = 0;
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if ((p = strchr(jid, '@')))
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*p = domain_separator;
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snprintf(buf, sizeof(buf), "sip:%s@%s", jid, gateway_domain);
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} else {
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snprintf(tbuf, sizeof(tbuf), "sip:%s", jid);
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/* strip off resource */
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if ((p = strchr(tbuf, '/')))
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*p = 0;
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if (parse_uri(tbuf, strlen(tbuf), &puri) < 0) {
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LM_ERR("failed to parse URI\n");
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return NULL;
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}
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for(it=_xmpp_gwmap_list; it; it=it->next)
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{
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if(it->body.len>0)
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{
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sd = it->body;
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} else {
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sd = it->name;
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}
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if(sd.len==puri.host.len
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&& strncasecmp(sd.s, puri.host.s, sd.len)==0)
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{
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break;
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}
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}
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if(it)
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{
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snprintf(buf, 512, "sip:%.*s@%.*s", puri.user.len, puri.user.s,
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it->name.len, it->name.s);
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} else {
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snprintf(buf, 512, "sip:%.*s@%.*s", puri.user.len, puri.user.s,
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puri.host.len, puri.host.s);
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}
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}
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return buf;
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}
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char *extract_domain(char *jid)
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{
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char *p;
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if ((p = strchr(jid, '/')))
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*p = 0;
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if ((p = strchr(jid, '@'))) {
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*p++ = 0;
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return p;
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}
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return p;
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}
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char *random_secret(void)
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{
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static char secret[41];
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int i, r;
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for (i = 0; i < 40; i++) {
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r = (int) (36.0 * rand() / RAND_MAX);
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secret[i] = (r >= 0 && r <= 9) ? (r + 48) : (r + 87);
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}
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secret[40] = '\0';
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return secret;
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}
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char *db_key(char *secret, char *domain, char *id)
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{
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char buf[1024];
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char *hash;
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snprintf(buf, sizeof(buf), "%s", secret);
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hash = shahash(buf);
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snprintf(buf, sizeof(buf), "%s%s", hash, domain);
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hash = shahash(buf);
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snprintf(buf, sizeof(buf), "%s%s", hash, id);
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hash = shahash(buf);
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return hash;
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}
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