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141 lines
4.0 KiB
141 lines
4.0 KiB
/*
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* Copyright (C) 2008 Raphael Coeffic
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*
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* This file is part of SEMS, a free SIP media server.
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*
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* SEMS 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. This program is released under
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* the GPL with the additional exemption that compiling, linking,
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* and/or using OpenSSL is allowed.
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*
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* For a license to use the SEMS software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* SEMS 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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#include "AmSessionContainer.h"
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#include "AmSipDialog.h"
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#include "AmUtils.h"
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#include "log.h"
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#include "AmSipDispatcher.h"
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#include "AmEventDispatcher.h"
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AmSipDispatcher *AmSipDispatcher::_instance;
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AmSipDispatcher* AmSipDispatcher::instance()
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{
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return _instance ? _instance : ((_instance = new AmSipDispatcher()));
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}
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void AmSipDispatcher::handleSipMsg(const string& dialog_id, AmSipReply &reply)
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{
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const string& id = dialog_id.empty() ? reply.from_tag : dialog_id;
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AmSipReplyEvent* ev = new AmSipReplyEvent(reply);
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if(!AmEventDispatcher::instance()->post(id,ev)){
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if ((reply.code >= 100) && (reply.code < 300)) {
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if (AmConfig::UnhandledReplyLoglevel >= 0) {
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_LOG(AmConfig::UnhandledReplyLoglevel,
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"unhandled SIP reply: %s\n", reply.print().c_str());
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}
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} else {
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WARN("unhandled SIP reply: %s\n", reply.print().c_str());
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}
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delete ev;
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}
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}
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void AmSipDispatcher::handleSipMsg(AmSipRequest &req)
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{
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string callid = req.callid;
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string remote_tag = req.from_tag;
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string local_tag = req.to_tag;
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AmEventDispatcher* ev_disp = AmEventDispatcher::instance();
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if(req.method == SIP_METH_CANCEL){
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if(ev_disp->postSipRequest(req)){
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return;
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}
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// CANCEL of a (here) non-existing dialog
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AmSipDialog::reply_error(req,481,SIP_REPLY_NOT_EXIST);
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return;
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}
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else if(!local_tag.empty()) {
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// in-dlg request
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AmSipRequestEvent* ev = new AmSipRequestEvent(req);
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// Contact-user may contain internal dialog ID (must be tried before using
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// local_tag for identification)
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if(!req.user.empty() && ev_disp->post(req.user,ev))
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return;
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if(ev_disp->post(local_tag,ev))
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return;
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delete ev;
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if(req.method != SIP_METH_ACK) {
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AmSipDialog::reply_error(req,481,
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"Call leg/Transaction does not exist");
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}
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else {
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DBG("received ACK for non-existing dialog "
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"(callid=%s;remote_tag=%s;local_tag=%s)\n",
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callid.c_str(),remote_tag.c_str(),local_tag.c_str());
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}
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return;
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}
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DBG("method: `%s' [%zd].\n", req.method.c_str(), req.method.length());
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if(req.method == SIP_METH_INVITE){
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AmSessionContainer::instance()->startSessionUAS(req);
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}
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else if(req.method == SIP_METH_BYE ||
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req.method == SIP_METH_PRACK){
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// BYE/PRACK of a (here) non-existing dialog
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AmSipDialog::reply_error(req,481,SIP_REPLY_NOT_EXIST);
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return;
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} else {
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string app_name;
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AmSessionFactory* sess_fact = AmPlugIn::instance()->findSessionFactory(req,app_name);
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if (sess_fact) {
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try {
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sess_fact->onOoDRequest(req);
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return;
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} catch (AmSession::Exception& e) {
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AmSipDialog::reply_error(req,e.code,e.reason, e.hdrs);
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ERROR("%i %s %s\n",e.code,e.reason.c_str(), e.hdrs.c_str());
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return;
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}
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}
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if (req.method == SIP_METH_OPTIONS) {
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AmSessionFactory::replyOptions(req);
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return;
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}
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AmSipDialog::reply_error(req,404,"Not found");
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}
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}
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