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sems/apps/examples/pinauthconference/PinAuthConference.cpp

244 lines
7.0 KiB

/*
* $Id: PinAuthConference.cpp 288 2007-03-28 16:32:02Z sayer $
*
* Copyright (C) 2007 iptego GmbH
*
* This file is part of sems, a free SIP media server.
*
* sems 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.
*
* For a license to use the sems software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* sems 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
*/
#include "PinAuthConference.h"
#include "AmConferenceStatus.h"
#include "AmUtils.h"
#include "log.h"
#define APP_NAME "pinauthconference"
EXPORT_SESSION_FACTORY(PinAuthConferenceFactory,APP_NAME);
PinAuthConferenceFactory::PinAuthConferenceFactory(const string& _app_name)
: AmSessionFactory(_app_name)
{
}
string PinAuthConferenceFactory::DigitsDir;
PlayoutType PinAuthConferenceFactory::m_PlayoutType = ADAPTIVE_PLAYOUT;
int PinAuthConferenceFactory::onLoad()
{
AmConfigReader cfg;
if(cfg.loadFile(AmConfig::ModConfigPath + string(APP_NAME)+ ".conf"))
return -1;
// get application specific global parameters
configureModule(cfg);
// get prompts
AM_PROMPT_START;
AM_PROMPT_ADD(FIRST_PARTICIPANT, ANNOUNCE_PATH "first_paricipant.wav");
AM_PROMPT_ADD(JOIN_SOUND, ANNOUNCE_PATH "beep.wav");
AM_PROMPT_ADD(DROP_SOUND, ANNOUNCE_PATH "beep.wav");
AM_PROMPT_ADD(ENTER_PIN, ANNOUNCE_PATH "enter_pin.wav");
AM_PROMPT_ADD(WRONG_PIN, ANNOUNCE_PATH "wrong_pin.wav");
AM_PROMPT_ADD(ENTERING_CONFERENCE, ANNOUNCE_PATH "entering_conference.wav");
AM_PROMPT_END(prompts, cfg, APP_NAME);
DigitsDir = cfg.getParameter("digits_dir");
if (DigitsDir.length() && DigitsDir[DigitsDir.length()-1]!='/')
DigitsDir+='/';
if (!DigitsDir.length()) {
WARN("No digits_dir specified in configuration.\n");
}
for (int i=0;i<10;i++)
prompts.setPrompt(int2str(i), DigitsDir+int2str(i)+".wav", APP_NAME);
string playout_type = cfg.getParameter("playout_type");
if (playout_type == "simple") {
m_PlayoutType = SIMPLE_PLAYOUT;
DBG("Using simple (fifo) buffer as playout technique.\n");
} else if (playout_type == "adaptive_jb") {
m_PlayoutType = JB_PLAYOUT;
DBG("Using adaptive jitter buffer as playout technique.\n");
} else {
DBG("Using adaptive playout buffer as playout technique.\n");
}
return 0;
}
// incoming calls - req is INVITE
AmSession* PinAuthConferenceFactory::onInvite(const AmSipRequest& req)
{
return new PinAuthConferenceDialog(prompts);
}
// outgoing calls - rep is 200 class response to INVITE
AmSession* PinAuthConferenceFactory::onInvite(const AmSipReply& rep)
{
return new PinAuthConferenceDialog(prompts);
}
PinAuthConferenceDialog::PinAuthConferenceDialog(AmPromptCollection& prompts)
: play_list(this), separator(this, 0), prompts(prompts), state(None)
{
// set configured playout type
rtp_str.setPlayoutType(PinAuthConferenceFactory::m_PlayoutType);
}
PinAuthConferenceDialog::~PinAuthConferenceDialog()
{
play_list.close(false);
prompts.cleanup((long)this);
}
void PinAuthConferenceDialog::connectConference(const string& room) {
// set the conference id ('conference room')
conf_id = room;
// disconnect in/out for safety
setInOut(NULL, NULL);
// we need to be in the same callgroup as the other
// people in the conference (important if we have multiple
// MediaProcessor threads
changeCallgroup(conf_id);
// get a channel from the status
channel.reset(AmConferenceStatus::getChannel(conf_id,getLocalTag()));
// clear the playlist
play_list.close(false);
// add the channel to our playlist
play_list.addToPlaylist(new AmPlaylistItem(channel.get(),
channel.get()));
// set the playlist as input and output
setInOut(&play_list,&play_list);
}
void PinAuthConferenceDialog::onSessionStart(const AmSipRequest& req)
{
state = EnteringPin;
prompts.addToPlaylist(ENTER_PIN, (long)this, play_list);
// set the playlist as input and output
setInOut(&play_list,&play_list);
}
void PinAuthConferenceDialog::onBye(const AmSipRequest& req)
{
play_list.close();
setInOut(NULL,NULL);
channel.reset(NULL);
setStopped();
}
void PinAuthConferenceDialog::process(AmEvent* ev)
{
// check conference events
ConferenceEvent* ce = dynamic_cast<ConferenceEvent*>(ev);
if(ce && (conf_id == ce->conf_id)){
switch(ce->event_id){
case ConfNewParticipant: {
DBG("########## new participant #########\n");
if(ce->participants == 1){
prompts.addToPlaylist(FIRST_PARTICIPANT, (long)this, play_list, true);
} else {
prompts.addToPlaylist(JOIN_SOUND, (long)this, play_list, true);
}
} break;
case ConfParticipantLeft: {
DBG("########## participant left ########\n");
prompts.addToPlaylist(DROP_SOUND, (long)this, play_list, true);
} break;
default:
break;
}
return;
}
// our item will fire this event
AmPlaylistSeparatorEvent* sep_ev = dynamic_cast<AmPlaylistSeparatorEvent*>(ev);
if (NULL != sep_ev) {
// don't care for the id here
if (EnteringConference == state) {
state = InConference;
connectConference(pin_str);
DBG("connectConference. **********************\n");
}
}
// audio events
AmAudioEvent* audio_ev = dynamic_cast<AmAudioEvent*>(ev);
if (audio_ev &&
audio_ev->event_id == AmAudioEvent::noAudio) {
DBG("received noAudio event. **********************\n");
return;
}
AmSession::process(ev);
}
void PinAuthConferenceDialog::onDtmf(int event, int duration)
{
DBG("PinAuthConferenceDialog::onDtmf: event %d duration %d\n",
event, duration);
if (EnteringPin == state) {
// not yet in conference
if (event<10) {
pin_str += int2str(event);
DBG("added '%s': PIN is now '%s'.\n",
int2str(event).c_str(), pin_str.c_str());
} else if (event==10 || event==11) {
// pound and star key
// if required add checking of pin here...
if (!pin_str.length()) {
prompts.addToPlaylist(WRONG_PIN, (long)this, play_list, true);
} else {
state = EnteringConference;
setInOut(NULL, NULL);
play_list.close();
for (size_t i=0;i<pin_str.length();i++) {
string num = "";
num[0] = pin_str[i];
DBG("adding '%s' to playlist.\n", num.c_str());
prompts.addToPlaylist(num,
(long)this, play_list);
}
setInOut(&play_list,&play_list);
prompts.addToPlaylist(ENTERING_CONFERENCE,
(long)this, play_list);
play_list.addToPlaylist(new AmPlaylistItem(&separator, NULL));
}
}
}
}