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Added Google Voice support module that sends DTMF at answer time. 

git-svn-id: http://yate.null.ro/svn/yate/trunk@5016 acf43c95-373e-0410-b603-e72c3f656dc1
This commit is contained in:
paulc 2012-04-20 17:24:58 +00:00
parent c66d765aa5
commit 1094d10b84
3 changed files with 288 additions and 0 deletions
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26
conf.d/gvoice.conf.sample Normal file
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@ -0,0 +1,26 @@
[general]
; Global settings for the Google Voice(TM) support module
; call.execute: int: Priority of the call.execute message handler
;call.execute=20
; call.answered: int: Priority of the call.answered message handler
;call.answered=50
; chan.hangup: int: Priority of the chan.hangup message handler
;chan.hangup=50
; dtmf_delay: int: Delay until first DTMF is sent, in seconds
;dtmf_delay=2
; dtmf_outbound: boolean: Send the DTMF to the outbound instead of inbound
;dtmf_outbound=no
; dtmf_text: string: Sequence of DTMFs to send, one per second
;dtmf_text=1
; match_param: string: Parameter to match in call.execute message
;match_param=calleruri
; match_rule: regexp: Regular expression to match the message parameter
;match_rule=^jingle:.*@voice.google.com/

1
modules/Makefile.in
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@ -58,6 +58,7 @@ PROGS := cdrbuild.yate cdrfile.yate regexroute.yate \
yiaxchan.yate \
yjinglechan.yate jabber/jabberserver.yate jabber/jbfeatures.yate \
ysockschan.yate filetransfer.yate \
gvoice.yate \
javascript.yate \
server/pbxassist.yate server/dbpbx.yate server/lateroute.yate \
server/park.yate server/queues.yate server/queuesnotify.yate \

261
modules/gvoice.cpp Normal file
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/**
* gvoice.cpp
* This file is part of the YATE Project http://YATE.null.ro
*
* Google Voice(TM) auxiliary module - send DTMF on answer
*
* Yet Another Telephony Engine - a fully featured software PBX and IVR
* Copyright (C) 2012 Null Team
*
* This program 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.
*
* This program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <yatephone.h>
using namespace TelEngine;
namespace { // anonymous
class GVChanData : public GenObject
{
public:
GVChanData(const char* id, const char* tones, const NamedList& params);
~GVChanData();
inline const String& id() const
{ return m_id; }
inline void replaceId(const String& value)
{ m_id = value; }
virtual const String& toString() const
{ return id(); }
// Start the timer
void start(const String& peerId);
// Send DTMFs. Return false if no more data to send
bool sendDtmf(unsigned int time);
protected:
String m_id;
String m_peerId;
String m_tones;
unsigned int m_delay;
bool m_outbound;
unsigned int m_sendTime;
};
class GVModule : public Module
{
public:
enum Relay {
ChanHangup = Private,
};
GVModule();
~GVModule();
virtual void initialize();
virtual bool received(Message& msg, int id);
// Clear data
void stop();
// Retrieve an object from send dtmf list
// Return a referrenced object
GVChanData* findChanDtmfData(const String& id);
private:
void onTimer(unsigned int time);
void onExecute(Message& msg);
void onAnswered(Message& msg);
void onHangup(Message& msg);
ObjList m_sendDtmf; // List of items to send dtmf
String m_dtmfText; // Default DTMFs to send
String m_matchParam; // Parameter to match
Regexp m_matchRule; // Rule for matched parameter
};
// Module data
INIT_PLUGIN(GVModule);
static unsigned int s_dtmfDelay = 2; // Default delay
static bool s_dtmfOutbound = false; // Send to outbound call leg
static unsigned int s_time = 0;
//
// GVChanData
//
GVChanData::GVChanData(const char* id, const char* tones, const NamedList& params)
: m_id(id), m_tones(tones), m_delay(0), m_outbound(false), m_sendTime(0)
{
DDebug(&__plugin,DebugAll,"GVChanData '%s' '%s' [%p]",m_id.c_str(),m_tones.c_str(),this);
m_delay = params.getIntValue(YSTRING("postanm_dtmf_delay"),s_dtmfDelay);
if (m_delay > 60000)
m_delay = 60000;
m_outbound = params.getBoolValue(YSTRING("postanm_dtmf_outbound"),s_dtmfOutbound);
}
GVChanData::~GVChanData()
{
DDebug(&__plugin,DebugAll,"GVChanData '%s' destroyed [%p]",m_id.c_str(),this);
}
// Start the timer
void GVChanData::start(const String& peerId)
{
if (m_sendTime)
return;
Debug(&__plugin,DebugNote,"GVChanData '%s' starting in %u s [%p]",
m_id.c_str(),m_delay,this);
m_peerId = peerId;
m_sendTime = s_time + m_delay;
}
// Send DTMFs. Return false if no more data to send
bool GVChanData::sendDtmf(unsigned int time)
{
if (!m_sendTime || m_sendTime > time)
return true;
if (m_tones) {
String tone = m_tones.substr(0,1);
m_tones = m_tones.substr(1);
char t = tone.at(0);
if (('0' <= t && t <= '9') || '*' == t || '#' == t || ('A' <= t && t <= 'D')) {
Debug(&__plugin,DebugAll,"GVChanData '%s' sending '%s' [%p]",
m_id.c_str(),tone.c_str(),this);
Message* m = new Message("chan.masquerade");
m->addParam("module",__plugin.name());
m->addParam("id",m_outbound ? m_id : m_peerId);
m->addParam("message","chan.dtmf");
m->addParam("text",tone);
m->addParam("detected","generated");
Engine::enqueue(m);
}
}
if (m_tones.null())
return false;
m_sendTime = time + 1;
return true;
}
//
// GVModule
//
GVModule::GVModule()
: Module("gvoice","misc")
{
Output("Loaded module GVoice");
}
GVModule::~GVModule()
{
Output("Unloading module GVoice");
}
bool GVModule::received(Message& msg, int id)
{
switch (id) {
case Timer:
onTimer(msg.getIntValue(YSTRING("time")));
break;
case Execute:
onExecute(msg);
return false;
case Answered:
onAnswered(msg);
return false;
case ChanHangup:
onHangup(msg);
return false;
}
return Module::received(msg,id);
}
// Send DTMFs for all active calls
void GVModule::onTimer(unsigned int time)
{
lock();
s_time = time + 1;
ListIterator iter(m_sendDtmf);
while (GVChanData* c = static_cast<GVChanData*>(iter.get())) {
if (!c->sendDtmf(time))
m_sendDtmf.remove(c);
}
unlock();
}
void GVModule::onExecute(Message& msg)
{
const String& id = msg[YSTRING("id")];
if (id.null())
return;
bool match = true;
const String& enable = msg[YSTRING("postanm_dtmf")];
if (enable.toBoolean(false))
match = false;
else if (!enable.toBoolean(true))
return;
Lock mylock(this);
if (match && !m_matchRule.matches(msg[m_matchParam]))
return;
String text = msg.getValue(YSTRING("postanm_dtmf_text"),m_dtmfText);
if (text.null()) {
Debug(this,DebugNote,"Missing DTMFs for chan=%s",id.c_str());
return;
}
m_sendDtmf.append(new GVChanData(id,text,msg));
}
void GVModule::onAnswered(Message& msg)
{
lock();
GVChanData* c = static_cast<GVChanData*>(m_sendDtmf[msg[YSTRING("peerid")]]);
if (c)
c->start(msg[YSTRING("id")]);
unlock();
}
void GVModule::onHangup(Message& msg)
{
const String& id = msg[YSTRING("id")];
if (id.null())
return;
Lock mylock(this);
m_sendDtmf.remove(id);
}
void GVModule::initialize()
{
static bool s_init = true;
Output("Initializing module GVoice");
Configuration cfg(Engine::configFile("gvoice"));
if (s_init) {
setup();
installRelay(Execute,cfg.getIntValue("general","call.execute",20));
installRelay(Answered,cfg.getIntValue("general","call.answered",50));
installRelay(ChanHangup,"chan.hangup",cfg.getIntValue("general","chan.hangup",50));
s_init = false;
}
s_dtmfDelay = cfg.getIntValue("general","dtmf_delay",2);
s_dtmfOutbound = cfg.getBoolValue("general","dtmf_outbound",false);
lock();
m_dtmfText = cfg.getValue("general","dtmf_text","1");
m_matchParam = cfg.getValue("general","match_param","calleruri");
m_matchRule = cfg.getValue("general","match_rule","^jingle:.*@voice.google.com/");
m_matchRule.compile();
unlock();
}
}; // anonymous namespace
/* vi: set ts=8 sw=4 sts=4 noet: */