Added dbwave module that can play or record from a binary database field.
git-svn-id: http://yate.null.ro/svn/yate/trunk@2535 acf43c95-373e-0410-b603-e72c3f656dc1
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@ -35,6 +35,7 @@ PROGS := cdrbuild.yate cdrfile.yate regexroute.yate \
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server/pbxassist.yate server/dbpbx.yate server/lateroute.yate \
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server/park.yate server/queues.yate server/queuesnotify.yate \
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server/regfile.yate server/accfile.yate server/register.yate \
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server/dbwave.yate \
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server/yradius.yate \
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server/sipfeatures.yate \
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server/heartbeat.yate server/clustering.yate \
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@ -0,0 +1,206 @@
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/**
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* dbwave.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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* Wave record+playback helper for database storage, uses wavefile
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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 <yatephone.h>
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using namespace TelEngine;
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namespace { // anonymous
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class AttachHandler : public MessageHandler
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{
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public:
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AttachHandler() : MessageHandler("chan.attach",90) { }
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virtual bool received(Message& msg);
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};
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class RecordHandler : public MessageHandler
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{
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public:
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RecordHandler() : MessageHandler("chan.record",90) { }
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virtual bool received(Message& msg);
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};
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class ExecuteHandler : public MessageHandler
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{
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public:
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ExecuteHandler() : MessageHandler("call.execute",90) { }
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virtual bool received(Message& msg);
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};
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class DbWriter : public MemoryStream, public GenObject
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{
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public:
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inline DbWriter(const char* account, const char* query)
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: m_account(account), m_query(query)
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{ }
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virtual ~DbWriter();
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virtual void* getObject(const String& name) const;
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private:
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String m_account;
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String m_query;
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};
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class DbWave : public Plugin
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{
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public:
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DbWave();
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virtual void initialize();
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private:
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bool m_init;
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};
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INIT_PLUGIN(DbWave);
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static void alterSource(Message& msg, const String& name)
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{
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const String* param = msg.getParam(name);
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if (!param)
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return;
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if (!param->startsWith("dbwave/play/"))
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return;
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const char* account = msg.getValue(name + "_account");
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const char* query = msg.getValue(name + "_query");
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String file = param->substr(2);
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if (msg.getBoolValue(name + "_fallback",true))
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msg.setParam(name,file);
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if (!(account && query))
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return;
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Message m("database");
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m.addParam("account",account);
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m.addParam("query",query);
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if (!Engine::dispatch(m) || (m.getIntValue("rows") != 1) || (m.getIntValue("columns") != 1))
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return;
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Array* a = static_cast<Array*>(m.userObject("Array"));
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if (!a)
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return;
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GenObject* obj = a->take(0,1);
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DataBlock* data = YOBJECT(DataBlock,obj);
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if (!data) {
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if (obj) {
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GenObject* col = a->get(0,0);
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Debug(DebugMild,"DbWave got on column '%s' non-binary data '%s'",
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(col ? col->toString().c_str() : ""),obj->toString().c_str());
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}
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TelEngine::destruct(obj);
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return;
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}
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DDebug(DebugInfo,"Query for '%s' account '%s' returned %u bytes",
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name.c_str(),account,data->length());
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msg.setParam(new NamedPointer(name,data,file));
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}
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static void alterConsumer(Message& msg, const String& name)
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{
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const String* param = msg.getParam(name);
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if (!param)
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return;
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if (!param->startsWith("dbwave/record/"))
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return;
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const char* account = msg.getValue(name + "_account");
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const char* query = msg.getValue(name + "_query");
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if (!(account && query)) {
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if (msg.getBoolValue(name + "_fallback",false))
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msg.setParam(name,param->substr(2));
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return;
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}
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DDebug(DebugInfo,"Creating DbWriter for '%s' account '%s' query='%s'",
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name.c_str(),account,query);
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msg.setParam(new NamedPointer(name,new DbWriter(account,query),param->substr(2)));
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}
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// chan.attach handler
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bool AttachHandler::received(Message& msg)
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{
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alterSource(msg,"source");
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alterConsumer(msg,"consumer");
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alterSource(msg,"override");
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alterSource(msg,"replace");
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return false;
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}
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// chan.record handler
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bool RecordHandler::received(Message& msg)
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{
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alterConsumer(msg,"call");
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alterConsumer(msg,"peer");
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return false;
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}
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// call.execute handler
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bool ExecuteHandler::received(Message& msg)
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{
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alterSource(msg,"callto");
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alterConsumer(msg,"callto");
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return false;
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}
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DbWriter::~DbWriter()
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{
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if (data().null()) {
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Debug(DebugNote,"DbWriter collected no data!");
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return;
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}
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NamedList params("");
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params.addParam(new NamedPointer("data",new DataBlock(data())));
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params.replaceParams(m_query,true);
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DDebug(DebugInfo,"DbWriter data size: %u query size: %u",data().length(),m_query.length());
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Message* m = new Message("database");
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m->addParam("account",m_account);
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m->addParam("query",m_query);
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Engine::enqueue(m);
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}
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void* DbWriter::getObject(const String& name) const
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{
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if (name == "Stream")
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return static_cast<Stream*>(const_cast<DbWriter*>(this));
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return GenObject::getObject(name);
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}
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DbWave::DbWave()
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: Plugin("dbwave",true), m_init(true)
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{
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Output("Loaded module DbWave");
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}
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void DbWave::initialize()
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{
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Output("Initializing module DbWave");
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if (m_init) {
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m_init = false;
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Engine::install(new AttachHandler);
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Engine::install(new RecordHandler);
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Engine::install(new ExecuteHandler);
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}
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}
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}; // anonymous namespace
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/* vi: set ts=8 sw=4 sts=4 noet: */
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