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146 lines
4.0 KiB
146 lines
4.0 KiB
/*
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* Copyright (C) 2002-2003 Fhg Fokus
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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.
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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 "AnnounceB2B.h"
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#include "AmSessionContainer.h"
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#include "AmConfig.h"
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#include "AmUtils.h"
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#include "AmApi.h"
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#include "AmMediaProcessor.h"
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#include "sems.h"
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#include "log.h"
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#define MOD_NAME "ann_b2b"
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EXPORT_SESSION_FACTORY(AnnounceB2BFactory,MOD_NAME);
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string AnnounceB2BFactory::AnnouncePath;
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string AnnounceB2BFactory::AnnounceFile;
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AnnounceB2BFactory::AnnounceB2BFactory(const string& _app_name)
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: AmSessionFactory(_app_name)
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{
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}
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int AnnounceB2BFactory::onLoad()
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{
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AmConfigReader cfg;
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if(cfg.loadFile(AmConfig::ModConfigPath + string(MOD_NAME ".conf")))
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return -1;
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// get application specific global parameters
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configureModule(cfg);
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AnnouncePath = cfg.getParameter("announce_path",ANNOUNCE_PATH);
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if( !AnnouncePath.empty()
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&& AnnouncePath[AnnouncePath.length()-1] != '/' )
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AnnouncePath += "/";
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AnnounceFile = cfg.getParameter("default_announce",ANNOUNCE_FILE);
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DBG("AnnounceFile = %s\n",AnnounceFile.c_str());
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string announce_file = AnnouncePath + AnnounceFile;
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if(!file_exists(announce_file)){
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ERROR("default file for ann_b2b module does not exist ('%s').\n",
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announce_file.c_str());
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return -1;
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}
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return 0;
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}
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AmSession* AnnounceB2BFactory::onInvite(const AmSipRequest& req, const string& app_name,
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const map<string,string>& app_params)
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{
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string announce_path = AnnouncePath;
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string announce_file = announce_path + req.domain
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+ "/" + req.user + ".wav";
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DBG("trying '%s'\n",announce_file.c_str());
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if(file_exists(announce_file))
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return new AnnounceCallerDialog(announce_file);
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announce_file = announce_path + req.user + ".wav";
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DBG("trying '%s'\n",announce_file.c_str());
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if(file_exists(announce_file))
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return new AnnounceCallerDialog(announce_file);
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announce_file = AnnouncePath + AnnounceFile;
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return new AnnounceCallerDialog(announce_file);
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}
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AnnounceCallerDialog::AnnounceCallerDialog(const string& filename)
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: filename(filename),
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AmB2BCallerSession()
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{
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// we want to answer
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// the call ourself
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set_sip_relay_only(false);
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}
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void AnnounceCallerDialog::onInvite(const AmSipRequest& req)
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{
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callee_addr = req.to;
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callee_uri = req.r_uri;
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AmB2BCallerSession::onInvite(req);
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}
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void AnnounceCallerDialog::onSessionStart()
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{
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// we can drop all received packets
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// this disables DTMF detection as well
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setReceiving(false);
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if(wav_file.open(filename,AmAudioFile::Read))
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throw string("AnnouncementDialog::onSessionStart: Cannot open file\n");
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setOutput(&wav_file);
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AmB2BCallerSession::onSessionStart();
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}
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void AnnounceCallerDialog::process(AmEvent* event)
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{
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AmAudioEvent* audio_event = dynamic_cast<AmAudioEvent*>(event);
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if(audio_event && (audio_event->event_id == AmAudioEvent::cleared)){
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if (getCalleeStatus() != None)
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return;
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// detach this session from the media
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// because we will stay in signaling only
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AmMediaProcessor::instance()->removeSession(this);
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connectCallee(callee_addr, callee_uri);
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return;
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}
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AmB2BCallerSession::process(event);
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}
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