461 lines
11 KiB
C++
461 lines
11 KiB
C++
/**
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* cdrbuild.cpp
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* This file is part of the YATE Project http://YATE.null.ro
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*
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* Cdr builder
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*
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* Yet Another Telephony Engine - a fully featured software PBX and IVR
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* Copyright (C) 2004-2006 Null Team
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*
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* This program 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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* This program 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 St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <yatengine.h>
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#include <string.h>
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#include <stdio.h>
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using namespace TelEngine;
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namespace { // anonymous
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enum {
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CdrStart,
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CdrCall,
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CdrRoute,
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CdrRinging,
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CdrAnswer,
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CdrHangup,
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CdrDrop,
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EngHalt
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};
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class CdrHandler : public MessageHandler
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{
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public:
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CdrHandler(const char *name, int type, int prio = 50)
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: MessageHandler(name,prio), m_type(type) { }
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virtual bool received(Message &msg);
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private:
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int m_type;
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};
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class StatusHandler : public MessageHandler
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{
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public:
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StatusHandler() : MessageHandler("engine.status") { }
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virtual bool received(Message &msg);
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};
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class CdrBuilder : public NamedList
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{
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public:
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CdrBuilder(const char *name);
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virtual ~CdrBuilder();
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void update(int type, u_int64_t val);
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bool update(const Message& msg, int type, u_int64_t val);
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void emit(const char *operation = 0);
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String getStatus() const;
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static CdrBuilder* find(String &id);
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private:
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u_int64_t
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m_start,
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m_call,
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m_ringing,
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m_answer,
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m_hangup;
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String m_dir;
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String m_status;
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bool m_first;
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bool m_write;
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};
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class Param : public String
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{
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public:
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inline Param(const char* name, bool replace)
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: String(name), m_overwrite(replace)
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{ }
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inline bool overwrite() const
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{ return m_overwrite; }
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inline void overwrite(bool replace)
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{ m_overwrite = replace; }
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private:
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bool m_overwrite;
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};
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static ObjList s_cdrs;
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static Mutex s_mutex;
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static ObjList s_params;
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static int s_res = 1;
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// Time resolutions
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static TokenDict const s_timeRes[] = {
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{ "sec", 0 },
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{ "msec", 1 },
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{ "usec", 2 },
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{ 0, 0 },
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};
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// Default but overridable parameters
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static struct _params {
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const char* name;
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bool overwrite;
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} const s_defParams[] = {
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{ "billid", true },
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{ "reason", true },
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{ "address", false },
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{ "caller", false },
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{ "called", false },
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{ "calledfull", false },
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{ "username", false },
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{ 0, false },
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};
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// Internally built, non-overridable parameters
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static const char* const s_forbidden[] = {
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"time",
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"chan",
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"operation",
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"direction",
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"status",
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"duration",
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"billtime",
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"ringtime",
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"cdrwrite",
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0
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};
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static const char* printTime(char* buf,u_int64_t usec)
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{
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switch (s_res) {
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case 2:
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// microsecond resolution
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sprintf(buf,"%u.%06u",(unsigned int)(usec / 1000000),(unsigned int)(usec % 1000000));
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break;
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case 1:
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// millisecond resolution
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usec = (usec + 500) / 1000;
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sprintf(buf,"%u.%03u",(unsigned int)(usec / 1000),(unsigned int)(usec % 1000));
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break;
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default:
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// 1-second resolution
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usec = (usec + 500000) / 1000000;
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sprintf(buf,"%u",(unsigned int)usec);
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}
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return buf;
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}
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CdrBuilder::CdrBuilder(const char *name)
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: NamedList(name), m_dir("unknown"), m_status("unknown"),
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m_first(true), m_write(true)
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{
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m_start = m_call = m_ringing = m_answer = m_hangup = 0;
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}
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CdrBuilder::~CdrBuilder()
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{
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emit("finalize");
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}
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void CdrBuilder::emit(const char *operation)
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{
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if (null())
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return;
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u_int64_t t_hangup = m_hangup ? m_hangup : Time::now();
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u_int64_t
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t_start = m_start, t_call = m_call,
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t_ringing = m_ringing, t_answer = m_answer;
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if (!t_start)
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t_start = t_call;
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if (!t_call)
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t_call = t_start;
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if (!t_ringing)
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t_ringing = t_call;
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if (!t_answer)
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t_answer = t_hangup;
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if (t_answer > t_hangup)
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t_answer = t_hangup;
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if (t_ringing > t_answer)
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t_ringing = t_answer;
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if (!operation)
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operation = m_first ? "initialize" : "update";
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m_first = false;
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char buf[64];
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Message *m = new Message("call.cdr");
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m->addParam("time",printTime(buf,t_start));
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m->addParam("chan",c_str());
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m->addParam("operation",operation);
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m->addParam("direction",m_dir);
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m->addParam("duration",printTime(buf,t_hangup - t_start));
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m->addParam("billtime",printTime(buf,t_hangup - t_answer));
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m->addParam("ringtime",printTime(buf,t_answer - t_ringing));
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m->addParam("status",m_status);
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if (!getValue("external")) {
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const char* ext = 0;
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if (m_dir == "incoming")
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ext = getValue("caller");
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else if (m_dir == "outgoing")
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ext = getValue("called");
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if (ext)
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m->setParam("external",ext);
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}
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m->addParam("cdrwrite",String::boolText(m_write));
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unsigned int n = length();
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for (unsigned int i = 0; i < n; i++) {
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const NamedString* s = getParam(i);
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if (!s)
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continue;
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m->addParam(s->name(),*s);
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}
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Engine::enqueue(m);
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}
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String CdrBuilder::getStatus() const
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{
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String s(m_status);
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s << "|" << getValue("caller") << "|" << getValue("called");
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return s;
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}
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void CdrBuilder::update(int type, u_int64_t val)
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{
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switch (type) {
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case CdrStart:
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m_start = val;
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break;
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case CdrCall:
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m_call = val;
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break;
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case CdrRinging:
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if (!m_ringing)
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m_ringing = val;
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break;
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case CdrAnswer:
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if (!m_answer)
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m_answer = val;
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break;
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case CdrHangup:
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m_hangup = val;
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s_cdrs.remove(this);
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return;
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}
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}
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bool CdrBuilder::update(const Message& msg, int type, u_int64_t val)
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{
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if (type == CdrDrop) {
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Debug("cdrbuild",DebugNote,"%s CDR for '%s'",
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(m_first ? "Dropping" : "Closing"),c_str());
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// if we didn't generate an initialize generate no finalize
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if (m_first)
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clear();
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s_cdrs.remove(this);
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return true;
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}
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// cdrwrite must be consistent over all emitted messages so we read it once
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if (m_first)
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m_write = msg.getBoolValue("cdrwrite",true);
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unsigned int n = msg.length();
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for (unsigned int i = 0; i < n; i++) {
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const NamedString* s = msg.getParam(i);
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if (!s)
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continue;
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if (s->null())
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continue;
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if (s->name() == "status") {
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m_status = *s;
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if ((m_status == "incoming") || (m_status == "outgoing"))
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m_dir = m_status;
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}
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else if (s->name() == "direction")
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m_dir = *s;
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else {
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// search the parameter
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Lock lock(s_mutex);
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Param* p = static_cast<Param*>(s_params[s->name()]);
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if (!p)
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continue;
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bool overwrite = p->overwrite();
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lock.drop();
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NamedString* str = getParam(s->name());
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// parameter is not yet stored - store a copy
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if (!str)
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addParam(s->name(),*s);
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// parameter is stored but we should overwrite it
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else if (overwrite)
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*str = *s;
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}
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}
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update(type,val);
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if (type == CdrHangup) {
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s_cdrs.remove(this);
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return false;
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}
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emit();
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return false;
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}
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CdrBuilder* CdrBuilder::find(String &id)
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{
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return static_cast<CdrBuilder*>(s_cdrs[id]);
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}
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bool CdrHandler::received(Message &msg)
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{
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static Mutex mutex;
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Lock lock(mutex);
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if (m_type == EngHalt) {
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s_cdrs.clear();
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return false;
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}
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if (!msg.getBoolValue("cdrtrack",true))
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return false;
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String id(msg.getValue("id"));
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if (m_type == CdrDrop) {
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if (!id.startSkip("cdrbuild/",false))
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return false;
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}
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if (id.null()) {
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id = msg.getValue("module");
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id += "/";
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id += msg.getValue("span");
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id += "/";
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id += msg.getValue("channel");
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if (id == "//")
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return false;
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}
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bool rval = false;
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CdrBuilder *b = CdrBuilder::find(id);
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if (!b && ((m_type == CdrStart) || (m_type == CdrCall))) {
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b = new CdrBuilder(id);
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s_cdrs.append(b);
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}
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if (b)
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rval = b->update(msg,m_type,msg.msgTime().usec());
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else
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Debug("CdrBuilder",DebugInfo,"Got message '%s' for untracked id '%s'",
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msg.c_str(),id.c_str());
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if ((m_type == CdrRinging) || (m_type == CdrAnswer)) {
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id = msg.getValue("peerid");
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if (id && (b = CdrBuilder::find(id))) {
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b->update(m_type,msg.msgTime().usec());
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b->emit();
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}
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}
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return rval;
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};
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bool StatusHandler::received(Message &msg)
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{
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const char *sel = msg.getValue("module");
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if (sel && ::strcmp(sel,"cdrbuild"))
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return false;
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String st("name=cdrbuild,type=cdr,format=Status|Caller|Called");
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st << ";cdrs=" << s_cdrs.count();
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if (msg.getBoolValue("details",true)) {
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st << ";";
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ObjList *l = &s_cdrs;
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bool first = true;
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for (; l; l=l->next()) {
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CdrBuilder *b = static_cast<CdrBuilder *>(l->get());
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if (b) {
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if (first)
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first = false;
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else
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st << ",";
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st << *b << "=" << b->getStatus();
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}
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}
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}
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msg.retValue() << st << "\r\n";
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return false;
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}
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class CdrBuildPlugin : public Plugin
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{
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public:
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CdrBuildPlugin();
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virtual void initialize();
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private:
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bool m_first;
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};
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CdrBuildPlugin::CdrBuildPlugin()
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: m_first(true)
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{
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Output("Loaded module CdrBuild");
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}
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void CdrBuildPlugin::initialize()
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{
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Output("Initializing module CdrBuild");
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Configuration cfg(Engine::configFile("cdrbuild"));
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s_res = cfg.getIntValue("general","resolution",s_timeRes,1);
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s_mutex.lock();
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s_params.clear();
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const struct _params* params = s_defParams;
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for (; params->name; params++)
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s_params.append(new Param(params->name,params->overwrite));
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const NamedList* sect = cfg.getSection("parameters");
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if (sect) {
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unsigned int n = sect->length();
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for (unsigned int i = 0; i < n; i++) {
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const NamedString* p = sect->getParam(i);
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if (!p)
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continue;
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const char* const* f = s_forbidden;
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for (; *f; f++)
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if (p->name() == *f)
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break;
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if (*f) {
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Debug("cdrbuild",DebugWarn,"Cannot override parameter '%s'",p->name().c_str());
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continue;
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}
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Param* par = static_cast<Param*>(s_params[p->name()]);
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if (par)
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par->overwrite(p->toBoolean(par->overwrite()));
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else
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s_params.append(new Param(p->name(),p->toBoolean(false)));
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}
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}
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s_mutex.unlock();
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if (m_first) {
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m_first = false;
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Engine::install(new CdrHandler("chan.startup",CdrStart));
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Engine::install(new CdrHandler("call.route",CdrRoute));
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Engine::install(new CdrHandler("call.execute",CdrCall));
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Engine::install(new CdrHandler("call.ringing",CdrRinging));
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Engine::install(new CdrHandler("call.answered",CdrAnswer));
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Engine::install(new CdrHandler("chan.hangup",CdrHangup));
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Engine::install(new CdrHandler("call.drop",CdrDrop));
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Engine::install(new CdrHandler("engine.halt",EngHalt,150));
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Engine::install(new StatusHandler);
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}
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}
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INIT_PLUGIN(CdrBuildPlugin);
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}; // anonymous namespace
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/* vi: set ts=8 sw=4 sts=4 noet: */
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