/**
@file ModuleEchoLink.cpp
@brief A module that provides EchoLink connection possibility
@author Tobias Blomberg / SM0SVX
@date 2004-03-07
\verbatim
A module (plugin) for the multi purpose tranciever frontend system.
Copyright (C) 2004-2014 Tobias Blomberg / SM0SVX
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
\endverbatim
*/
/****************************************************************************
*
* System Includes
*
****************************************************************************/
#include <stdio.h>
#include <time.h>
#include <algorithm>
#include <cassert>
#include <sstream>
#include <cstdlib>
#include <vector>
/****************************************************************************
*
* Project Includes
*
****************************************************************************/
#include <AsyncTimer.h>
#include <AsyncConfig.h>
#include <AsyncAudioSplitter.h>
#include <AsyncAudioValve.h>
#include <AsyncAudioSelector.h>
#include <EchoLinkDirectory.h>
#include <EchoLinkDispatcher.h>
#include <EchoLinkProxy.h>
#include <LocationInfo.h>
#include <common.h>
/****************************************************************************
*
* Local Includes
*
****************************************************************************/
#include "version/MODULE_ECHOLINK.h"
#include "ModuleEchoLink.h"
#include "QsoImpl.h"
/****************************************************************************
*
* Namespaces to use
*
****************************************************************************/
using namespace std;
using namespace sigc;
using namespace Async;
using namespace EchoLink;
/****************************************************************************
*
* Defines & typedefs
*
****************************************************************************/
/****************************************************************************
*
* Local class definitions
*
****************************************************************************/
/****************************************************************************
*
* Prototypes
*
****************************************************************************/
/****************************************************************************
*
* Exported Global Variables
*
****************************************************************************/
/****************************************************************************
*
* Local Global Variables
*
****************************************************************************/
/****************************************************************************
*
* Pure C-functions
*
****************************************************************************/
extern "C" {
Module *module_init(void *dl_handle, Logic *logic, const char *cfg_name)
{
return new ModuleEchoLink(dl_handle, logic, cfg_name);
}
} /* extern "C" */
/****************************************************************************
*
* Public member functions
*
****************************************************************************/
ModuleEchoLink::ModuleEchoLink(void *dl_handle, Logic *logic,
const string& cfg_name)
: Module(dl_handle, logic, cfg_name), dir(0), dir_refresh_timer(0),
remote_activation(false), pending_connect_id(-1), last_message(""),
max_connections(1), max_qsos(1), talker(0), squelch_is_open(false),
state(STATE_NORMAL), cbc_timer(0), dbc_timer(0), drop_incoming_regex(0),
reject_incoming_regex(0), accept_incoming_regex(0),
reject_outgoing_regex(0), accept_outgoing_regex(0), splitter(0),
listen_only_valve(0), selector(0), num_con_max(0), num_con_ttl(5*60),
num_con_block_time(120*60), num_con_update_timer(0), reject_conf(false),
autocon_echolink_id(0), autocon_time(DEFAULT_AUTOCON_TIME),
autocon_timer(0), proxy(0)
{
cout << "\tModule EchoLink v" MODULE_ECHOLINK_VERSION " starting...\n";
} /* ModuleEchoLink */
ModuleEchoLink::~ModuleEchoLink(void)
{
moduleCleanup();
} /* ~ModuleEchoLink */
bool ModuleEchoLink::initialize(void)
{
if (!Module::initialize())
{
return false;
}
vector<string> servers;
if (!cfg().getValue(cfgName(), "SERVERS", servers))
{
string server;
if (cfg().getValue(cfgName(), "SERVER", server))
{
cerr << "*** WARNING: Config variable " << cfgName()
<< "/SERVER is deprecated. Use SERVERS instead.\n";
servers.push_back(server);
}
}
if (servers.empty())
{
cerr << "*** ERROR: Config variable " << cfgName() << "/SERVERS not set "
"or empty\n";
return false;
}
if (!cfg().getValue(cfgName(), "CALLSIGN", mycall))
{
cerr << "*** ERROR: Config variable " << cfgName() << "/CALLSIGN not set\n";
return false;
}
if (mycall == "MYCALL-L")
{
cerr << "*** ERROR: Please set the EchoLink callsign (" << cfgName()
<< "/CALLSIGN) to a real callsign\n";
return false;
}
string password;
if (!cfg().getValue(cfgName(), "PASSWORD", password))
{
cerr << "*** ERROR: Config variable " << cfgName() << "/PASSWORD not set\n";
return false;
}
if (password == "MyPass")
{
cerr << "*** ERROR: Please set the EchoLink password (" << cfgName()
<< "/PASSWORD) to a real password\n";
return false;
}
if (!cfg().getValue(cfgName(), "LOCATION", location))
{
cerr << "*** ERROR: Config variable " << cfgName() << "/LOCATION not set\n";
return false;
}
if (location.size() > Directory::MAX_DESCRIPTION_SIZE)
{
cerr << "*** WARNING: The value of " << cfgName() << "/LOCATION is too "
"long. Maximum length is " << Directory::MAX_DESCRIPTION_SIZE <<
" characters.\n";
location.resize(Directory::MAX_DESCRIPTION_SIZE);
}
if (!cfg().getValue(cfgName(), "SYSOPNAME", sysop_name))
{
cerr << "*** ERROR: Config variable " << cfgName()
<< "/SYSOPNAME not set\n";
return false;
}
if (!cfg().getValue(cfgName(), "DESCRIPTION", description))
{
cerr << "*** ERROR: Config variable " << cfgName()
<< "/DESCRIPTION not set\n";
return false;
}
string value;
if (cfg().getValue(cfgName(), "MAX_CONNECTIONS", value))
{
max_connections = atoi(value.c_str());
}
if (cfg().getValue(cfgName(), "MAX_QSOS", value))
{
max_qsos = atoi(value.c_str());
}
if (max_qsos > max_connections)
{
cerr << "*** ERROR: The value of " << cfgName() << "/MAX_CONNECTIONS ("
<< max_connections << ") must be greater or equal to the value of "
<< cfgName() << "/MAX_QSOS (" << max_qsos << ").\n";
return false;
}
cfg().getValue(cfgName(), "ALLOW_IP", allow_ip);
if (!cfg().getValue(cfgName(), "DROP_INCOMING", value))
{
value = "^$";
}
drop_incoming_regex = new regex_t;
int err = regcomp(drop_incoming_regex, value.c_str(),
REG_EXTENDED | REG_NOSUB | REG_ICASE);
if (err != 0)
{
size_t msg_size = regerror(err, drop_incoming_regex, 0, 0);
char msg[msg_size];
size_t err_size = regerror(err, drop_incoming_regex, msg, msg_size);
assert(err_size == msg_size);
cerr << "*** ERROR: Syntax error in " << cfgName() << "/DROP_INCOMING: "
<< msg << endl;
moduleCleanup();
return false;
}
// To reduce the number of senseless connects
if (cfg().getValue(cfgName(), "CHECK_NR_CONNECTS", value))
{
vector<unsigned> params;
if (SvxLink::splitStr(params, value, ",") != 3)
{
cerr << "*** ERROR: Syntax error in " << cfgName()
<< "/CHECK_NR_CONNECTS\n"
<< "Example: CHECK_NR_CONNECTS=3,300,60 where\n"
<< " 3 = max number of connects\n"
<< " 300 = time in seconds that a connection is remembered\n"
<< " 60 = time in minutes that the party is blocked\n";
return false;
}
num_con_max = params[0];
num_con_ttl = params[1];
num_con_block_time = params[2] * 60;
}
if (!cfg().getValue(cfgName(), "REJECT_INCOMING", value))
{
value = "^$";
}
reject_incoming_regex = new regex_t;
err = regcomp(reject_incoming_regex, value.c_str(),
REG_EXTENDED | REG_NOSUB | REG_ICASE);
if (err != 0)
{
size_t msg_size = regerror(err, reject_incoming_regex, 0, 0);
char msg[msg_size];
size_t err_size = regerror(err, reject_incoming_regex, msg, msg_size);
assert(err_size == msg_size);
cerr << "*** ERROR: Syntax error in " << cfgName() << "/REJECT_INCOMING: "
<< msg << endl;
moduleCleanup();
return false;
}
if (!cfg().getValue(cfgName(), "ACCEPT_INCOMING", value))
{
value = "^.*$";
}
accept_incoming_regex = new regex_t;
err = regcomp(accept_incoming_regex, value.c_str(),
REG_EXTENDED | REG_NOSUB | REG_ICASE);
if (err != 0)
{
size_t msg_size = regerror(err, accept_incoming_regex, 0, 0);
char msg[msg_size];
size_t err_size = regerror(err, accept_incoming_regex, msg, msg_size);
assert(err_size == msg_size);
cerr << "*** ERROR: Syntax error in " << cfgName() << "/ACCEPT_INCOMING: "
<< msg << endl;
moduleCleanup();
return false;
}
if (!cfg().getValue(cfgName(), "REJECT_OUTGOING", value))
{
value = "^$";
}
reject_outgoing_regex = new regex_t;
err = regcomp(reject_outgoing_regex, value.c_str(),
REG_EXTENDED | REG_NOSUB | REG_ICASE);
if (err != 0)
{
size_t msg_size = regerror(err, reject_outgoing_regex, 0, 0);
char msg[msg_size];
size_t err_size = regerror(err, reject_outgoing_regex, msg, msg_size);
assert(err_size == msg_size);
cerr << "*** ERROR: Syntax error in " << cfgName() << "/REJECT_OUTGOING: "
<< msg << endl;
moduleCleanup();
return false;
}
if (!cfg().getValue(cfgName(), "ACCEPT_OUTGOING", value))
{
value = "^.*$";
}
accept_outgoing_regex = new regex_t;
err = regcomp(accept_outgoing_regex, value.c_str(),
REG_EXTENDED | REG_NOSUB | REG_ICASE);
if (err != 0)
{
size_t msg_size = regerror(err, accept_outgoing_regex, 0, 0);
char msg[msg_size];
size_t err_size = regerror(err, accept_outgoing_regex, msg, msg_size);
assert(err_size == msg_size);
cerr << "*** ERROR: Syntax error in " << cfgName() << "/ACCEPT_OUTGOING: "
<< msg << endl;
moduleCleanup();
return false;
}
cfg().getValue(cfgName(), "REJECT_CONF", reject_conf);
cfg().getValue(cfgName(), "AUTOCON_ECHOLINK_ID", autocon_echolink_id);
int autocon_time_secs = autocon_time / 1000;
cfg().getValue(cfgName(), "AUTOCON_TIME", autocon_time_secs);
autocon_time = 1000 * max(autocon_time_secs, 5); // At least five seconds
string proxy_server;
cfg().getValue(cfgName(), "PROXY_SERVER", proxy_server);
uint16_t proxy_port = 8100;
cfg().getValue(cfgName(), "PROXY_PORT", proxy_port);
string proxy_password;
cfg().getValue(cfgName(), "PROXY_PASSWORD", proxy_password);
if (!proxy_server.empty())
{
proxy = new Proxy(proxy_server, proxy_port, mycall, proxy_password);
proxy->connect();
}
IpAddress bind_addr;
if (cfg().getValue(cfgName(), "BIND_ADDR", bind_addr) && bind_addr.isEmpty())
{
cerr << "*** ERROR: Invalid configuration value for " << cfgName()
<< "/BIND_ADDR specified.\n";
moduleCleanup();
return false;
}
if (cfg().getValue(cfgName(), "BRIDGE_PROXY", value))
{
bridge.setProxyConfiguration(value.c_str());
}
if (cfg().getValue(cfgName(), "BRIDGE_STORE", value))
{
bridge.setStoreConfiguration(value.c_str());
}
// Initialize directory server communication
dir = new Directory(servers, mycall, password, location, bind_addr);
dir->statusChanged.connect(mem_fun(*this, &ModuleEchoLink::onStatusChanged));
dir->stationListUpdated.connect(
mem_fun(*this, &ModuleEchoLink::onStationListUpdated));
dir->error.connect(mem_fun(*this, &ModuleEchoLink::onError));
dir->makeOnline();
// Start listening to the EchoLink UDP ports
Dispatcher::setBindAddr(bind_addr);
if (Dispatcher::instance() == 0)
{
cerr << "*** ERROR: Could not create EchoLink listener (Dispatcher) "
"object\n";
moduleCleanup();
return false;
}
Dispatcher::instance()->incomingConnection.connect(
mem_fun(*this, &ModuleEchoLink::onIncomingConnection));
// Create audio pipe chain for audio transmitted to the remote EchoLink
// stations: <from core> -> Valve -> Splitter (-> QsoImpl ...)
listen_only_valve = new AudioValve;
AudioSink::setHandler(listen_only_valve);
splitter = new AudioSplitter;
listen_only_valve->registerSink(splitter);
// Create audio pipe chain for audio received from the remove EchoLink
// stations: (QsoImpl -> ) Selector -> Fifo -> <to core>
selector = new AudioSelector;
AudioSource::setHandler(selector);
// Periodic updates of the "watch num connects" list
if (num_con_max > 0)
{
num_con_update_timer = new Timer(6000000); // One hour
num_con_update_timer->expired.connect(sigc::hide(
mem_fun(*this, &ModuleEchoLink::numConUpdate)));
}
if (autocon_echolink_id > 0)
{
// Initially set the timer to 15 seconds for quick activation on statup
autocon_timer = new Timer(15000, Timer::TYPE_PERIODIC);
autocon_timer->expired.connect(
mem_fun(*this, &ModuleEchoLink::checkAutoCon));
}
return true;
} /* ModuleEchoLink::initialize */
/****************************************************************************
*
* Protected member functions
*
****************************************************************************/
void ModuleEchoLink::logicIdleStateChanged(bool is_idle)
{
/*
printf("ModuleEchoLink::logicIdleStateChanged: is_idle=%s\n",
is_idle ? "TRUE" : "FALSE");
*/
if (qsos.size() > 0)
{
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
(*it)->logicIdleStateChanged(is_idle);
}
}
checkIdle();
} /* ModuleEchoLink::logicIdleStateChanged */
/****************************************************************************
*
* Private member functions
*
****************************************************************************/
void ModuleEchoLink::moduleCleanup(void)
{
//FIXME: Delete qso objects
delete num_con_update_timer;
num_con_update_timer = 0;
if (accept_incoming_regex != 0)
{
regfree(accept_incoming_regex);
delete accept_incoming_regex;
accept_incoming_regex = 0;
}
if (reject_incoming_regex != 0)
{
regfree(reject_incoming_regex);
delete reject_incoming_regex;
reject_incoming_regex = 0;
}
if (drop_incoming_regex != 0)
{
regfree(drop_incoming_regex);
delete drop_incoming_regex;
drop_incoming_regex = 0;
}
if (accept_outgoing_regex != 0)
{
regfree(accept_outgoing_regex);
delete accept_outgoing_regex;
accept_outgoing_regex = 0;
}
if (reject_outgoing_regex != 0)
{
regfree(reject_outgoing_regex);
delete reject_outgoing_regex;
reject_outgoing_regex = 0;
}
delete dir_refresh_timer;
dir_refresh_timer = 0;
Dispatcher::deleteInstance();
delete dir;
dir = 0;
delete proxy;
proxy = 0;
delete cbc_timer;
cbc_timer = 0;
delete dbc_timer;
dbc_timer = 0;
state = STATE_NORMAL;
delete autocon_timer;
autocon_timer = 0;
AudioSink::clearHandler();
delete splitter;
splitter = 0;
delete listen_only_valve;
listen_only_valve = 0;
AudioSource::clearHandler();
delete selector;
selector = 0;
} /* ModuleEchoLink::moduleCleanup */
/*
*----------------------------------------------------------------------------
* Method: activateInit
* Purpose: Called by the core system when this module is activated.
* Input: None
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::activateInit(void)
{
updateEventVariables();
state = STATE_NORMAL;
listen_only_valve->setOpen(true);
} /* activateInit */
/*
*----------------------------------------------------------------------------
* Method: deactivateCleanup
* Purpose: Called by the core system when this module is deactivated.
* Input: None
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks: Do NOT call this function directly unless you really know what
* you are doing. Use Module::deactivate() instead.
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::deactivateCleanup(void)
{
vector<QsoImpl*> qsos_tmp(qsos);
vector<QsoImpl*>::iterator it;
for (it=qsos_tmp.begin(); it!=qsos_tmp.end(); ++it)
{
if ((*it)->currentState() != Qso::STATE_DISCONNECTED)
{
(*it)->disconnect();
}
}
outgoing_con_pending.clear();
remote_activation = false;
delete cbc_timer;
cbc_timer = 0;
delete dbc_timer;
dbc_timer = 0;
state = STATE_NORMAL;
listen_only_valve->setOpen(true);
} /* deactivateCleanup */
/*
*----------------------------------------------------------------------------
* Method: dtmfDigitReceived
* Purpose: Called by the core system when a DTMF digit has been
* received.
* Input: digit - The DTMF digit received (0-9, A-D, *, #)
* duration - The length in milliseconds of the received digit
* Output: Return true if the digit is handled or false if not
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
#if 0
bool ModuleEchoLink::dtmfDigitReceived(char digit, int duration)
{
//cout << "DTMF digit received in module " << name() << ": " << digit << endl;
return false;
} /* dtmfDigitReceived */
#endif
/*
*----------------------------------------------------------------------------
* Method: dtmfCmdReceived
* Purpose: Called by the core system when a DTMF command has been
* received. A DTMF command consists of a string of digits ended
* with a number sign (#). The number sign is not included in the
* command string.
* Input: cmd - The received command.
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::dtmfCmdReceived(const string& cmd)
{
cout << "DTMF command received in module " << name() << ": " << cmd << endl;
remote_activation = false;
if (state == STATE_CONNECT_BY_CALL)
{
handleConnectByCall(cmd);
return;
}
if (state == STATE_DISCONNECT_BY_CALL)
{
handleDisconnectByCall(cmd);
return;
}
if (cmd.size() == 0) // Disconnect node or deactivate module
{
if ((qsos.size() != 0) &&
(qsos.back()->currentState() != Qso::STATE_DISCONNECTED))
{
qsos.back()->disconnect();
}
else if (outgoing_con_pending.empty())
{
deactivateMe();
}
}
/*
else if (cmd[0] == '*') // Connect by callsign
{
connectByCallsign(cmd);
}
*/
else if ((cmd.size() < 4) || (cmd[1] == '*')) // Dispatch to command handling
{
handleCommand(cmd);
}
else
{
connectByNodeId(atoi(cmd.c_str()));
}
} /* dtmfCmdReceived */
void ModuleEchoLink::dtmfCmdReceivedWhenIdle(const std::string &cmd)
{
if (cmd == "2") // Play own node id
{
stringstream ss;
ss << "play_node_id ";
const StationData *station = dir->findCall(dir->callsign());
ss << (station ? station->id() : 0);
processEvent(ss.str());
}
else
{
commandFailed(cmd);
}
} /* dtmfCmdReceivedWhenIdle */
/*
*----------------------------------------------------------------------------
* Method: squelchOpen
* Purpose: Called by the core system when activity is detected
* on the receiver.
* Input: is_open - true if the squelch is open or else false.
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::squelchOpen(bool is_open)
{
//printf("RX squelch is %s...\n", is_open ? "open" : "closed");
squelch_is_open = is_open;
if (listen_only_valve->isOpen())
{
broadcastTalkerStatus();
}
for (vector<QsoImpl*>::iterator it=qsos.begin(); it!=qsos.end(); ++it)
{
(*it)->squelchOpen(is_open);
}
} /* squelchOpen */
/*
*----------------------------------------------------------------------------
* Method: allMsgsWritten
* Purpose: Called by the core system when all audio messages queued
* for playing have been played.
* Input: None
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-05-22
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::allMsgsWritten(void)
{
if (!outgoing_con_pending.empty())
{
vector<QsoImpl*>::iterator it;
for (it=outgoing_con_pending.begin(); it!=outgoing_con_pending.end(); ++it)
{
(*it)->connect();
}
//outgoing_con_pending->connect();
updateDescription();
broadcastTalkerStatus();
outgoing_con_pending.clear();
}
} /* allMsgsWritten */
/*
*----------------------------------------------------------------------------
* Method: onStatusChanged
* Purpose: Called by the EchoLink::Directory object when the status of
* the registration is changed in the directory server.
* Input: status - The new status
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::onStatusChanged(StationData::Status status)
{
cout << "EchoLink directory status changed to "
<< StationData::statusStr(status) << endl;
// Get the directory list on first connection to the directory server
if ((status == StationData::STAT_ONLINE) ||
(status == StationData::STAT_BUSY))
{
if (dir_refresh_timer == 0)
{
getDirectoryList();
}
}
else
{
delete dir_refresh_timer;
dir_refresh_timer = 0;
}
// Update status at aprs.echolink.org
if (LocationInfo::has_instance())
{
LocationInfo::instance()->updateDirectoryStatus(status);
}
} /* onStatusChanged */
/*
*----------------------------------------------------------------------------
* Method: onStationListUpdated
* Purpose: Called by the EchoLink::Directory object when the station list
* has been updated.
* Input: None
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::onStationListUpdated(void)
{
if (pending_connect_id > 0)
{
const StationData *station = dir->findStation(pending_connect_id);
if (station != 0)
{
createOutgoingConnection(*station);
}
else
{
cout << "The EchoLink ID " << pending_connect_id
<< " could not be found.\n";
stringstream ss;
ss << "station_id_not_found " << pending_connect_id;
processEvent(ss.str());
}
pending_connect_id = -1;
}
if (dir->message() != last_message)
{
cout << "--- EchoLink directory server message: ---" << endl;
cout << dir->message() << endl;
last_message = dir->message();
}
} /* onStationListUpdated */
/*
*----------------------------------------------------------------------------
* Method: onError
* Purpose: Called by the EchoLink::Directory object when a communication
* error occurs.
* Input: msg - The error message
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::onError(const string& msg)
{
cerr << "*** ERROR: " << msg << endl;
if (pending_connect_id > 0)
{
stringstream ss;
ss << "lookup_failed " << pending_connect_id;
processEvent(ss.str());
}
} /* onError */
/*
*----------------------------------------------------------------------------
* Method: onIncomingConnection
* Purpose: Called by the EchoLink::Dispatcher object when a new remote
* connection is coming in.
* Input: callsign - The callsign of the remote station
* name - The name of the remote station
* priv - A private string for passing connection parameters
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::onIncomingConnection(const IpAddress& ip,
const string& callsign,
const string& name,
const string& priv)
{
cout << "Incoming EchoLink connection from " << callsign
<< " (" << name << ") at " << ip << "\n";
if (regexec(drop_incoming_regex, callsign.c_str(), 0, 0, 0) == 0)
{
cerr << "*** WARNING: Dropping incoming connection due to configuration.\n";
return;
}
if (qsos.size() >= max_connections)
{
cerr << "*** WARNING: Ignoring incoming connection (too many "
"connections)\n";
return;
}
const StationData *station;
StationData tmp_stn_data;
if (ip.isWithinSubet(allow_ip))
{
tmp_stn_data.setIp(ip);
tmp_stn_data.setCallsign(callsign);
station = &tmp_stn_data;
}
else
{
// Check if the incoming callsign is valid
station = dir->findCall(callsign);
if (station == 0)
{
getDirectoryList();
return;
}
}
if (station->ip() != ip)
{
cerr << "*** WARNING: Ignoring incoming connection from " << callsign
<< " since the IP address registered in the directory server "
<< "(" << station->ip() << ") is not the same as the remote IP "
<< "address (" << ip << ") of the incoming connection\n";
getDirectoryList();
return;
}
// Create a new Qso object to accept the connection
QsoImpl *qso = new QsoImpl(*station, this);
if (!qso->initOk())
{
delete qso;
cerr << "*** ERROR: Creation of Qso object failed\n";
return;
}
qsos.push_back(qso);
updateEventVariables();
qso->setRemoteCallsign(callsign);
qso->setRemoteName(name);
qso->setRemoteParams(priv);
qso->setListenOnly(!listen_only_valve->isOpen());
qso->stateChange.connect(mem_fun(*this, &ModuleEchoLink::onStateChange));
qso->chatMsgReceived.connect(
mem_fun(*this, &ModuleEchoLink::onChatMsgReceived));
qso->isReceiving.connect(mem_fun(*this, &ModuleEchoLink::onIsReceiving));
qso->audioReceivedRaw.connect(
mem_fun(*this, &ModuleEchoLink::audioFromRemoteRaw));
qso->destroyMe.connect(mem_fun(*this, &ModuleEchoLink::destroyQsoObject));
splitter->addSink(qso);
selector->addSource(qso);
selector->enableAutoSelect(qso, 0);
if (qsos.size() > max_qsos)
{
qso->reject(false);
return;
}
// Check if it is a station that connects very often senselessly
if ((num_con_max > 0) && !numConCheck(callsign))
{
qso->reject(false);
return;
}
if ((regexec(reject_incoming_regex, callsign.c_str(), 0, 0, 0) == 0) ||
(regexec(accept_incoming_regex, callsign.c_str(), 0, 0, 0) != 0) ||
(reject_conf && (name.size() > 3) &&
(name.rfind("CONF") == (name.size()-4))))
{
qso->reject(true);
return;
}
if (!isActive())
{
remote_activation = true;
}
if (!activateMe())
{
qso->reject(false);
cerr << "*** WARNING: Could not accept incoming connection from "
<< callsign
<< " since the frontend was busy doing something else.\n";
return;
}
qso->accept();
broadcastTalkerStatus();
updateDescription();
if (LocationInfo::has_instance())
{
list<string> call_list;
listQsoCallsigns(call_list);
LocationInfo::instance()->updateQsoStatus(2, callsign, name, call_list);
}
checkIdle();
} /* onIncomingConnection */
/*
*----------------------------------------------------------------------------
* Method: onStateChange
* Purpose: Called by the EchoLink::QsoImpl object when a state change has
* occured on the connection.
* Input: qso - The QSO object
* qso_state - The new QSO connection state
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2006-03-12
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::onStateChange(QsoImpl *qso, Qso::State qso_state)
{
switch (qso_state)
{
case Qso::STATE_DISCONNECTED:
{
vector<QsoImpl*>::iterator it = find(qsos.begin(), qsos.end(), qso);
assert (it != qsos.end());
qsos.erase(it);
it=qsos.begin();
qsos.insert(it,qso);
updateEventVariables();
if (!qso->connectionRejected())
{
last_disc_stn = qso->stationData();
}
if (remote_activation &&
(qsos.back()->currentState() == Qso::STATE_DISCONNECTED))
{
deactivateMe();
}
if (autocon_timer != 0)
{
autocon_timer->setTimeout(autocon_time);
}
broadcastTalkerStatus();
updateDescription();
break;
}
default:
updateEventVariables();
break;
}
} /* ModuleEchoLink::onStateChange */
/*
*----------------------------------------------------------------------------
* Method: onChatMsgReceived
* Purpose: Called by the EchoLink::Qso object when a chat message has been
* received from the remote station.
* Input: qso - The QSO object
* msg - The received message
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-05-04
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::onChatMsgReceived(QsoImpl *qso, const string& msg)
{
//cout << "--- EchoLink chat message received from " << qso->remoteCallsign()
// << " ---" << endl
// << msg << endl;
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if (*it != qso)
{
(*it)->sendChatData(msg);
}
}
// Escape TCL control characters
string escaped(msg);
replaceAll(escaped, "\\", "\\\\");
replaceAll(escaped, "{", "\\{");
replaceAll(escaped, "}", "\\}");
stringstream ss;
// FIXME: This TCL specific code should not be here
ss << "chat_received [subst -nocommands -novariables {";
ss << escaped;
ss << "}]";
bridge.handleChatMessage(escaped.c_str());
processEvent(ss.str());
} /* onChatMsgReceived */
/*
*----------------------------------------------------------------------------
* Method: onIsReceiving
* Purpose: Called by the EchoLink::Qso object to indicate whether the
* remote station is transmitting or not.
* Input: qso - The QSO object
* is_receiving - true=remote station is transmitting
* false=remote station is not transmitting
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::onIsReceiving(bool is_receiving, QsoImpl *qso)
{
//cerr << qso->remoteCallsign() << ": EchoLink receiving: "
// << (is_receiving ? "TRUE" : "FALSE") << endl;
stringstream ss;
ss << "is_receiving " << (is_receiving ? "1" : "0");
processEvent(ss.str());
if ((talker == 0) && is_receiving)
{
if (reject_conf)
{
string name = qso->remoteName();
if ((name.size() > 3) && (name.rfind("CONF") == (name.size()-4)))
{
qso->sendChatData("Connects from a conference are not allowed");
qso->disconnect();
return;
}
}
talker = qso;
broadcastTalkerStatus();
}
if (talker == qso)
{
if (!is_receiving)
{
talker = findFirstTalker();
if (talker != 0)
{
is_receiving = true;
}
broadcastTalkerStatus();
}
}
} /* onIsReceiving */
void ModuleEchoLink::destroyQsoObject(QsoImpl *qso)
{
//cout << qso->remoteCallsign() << ": Destroying QSO object" << endl;
string callsign = qso->remoteCallsign();
splitter->removeSink(qso);
selector->removeSource(qso);
vector<QsoImpl*>::iterator it = find(qsos.begin(), qsos.end(), qso);
assert (it != qsos.end());
qsos.erase(it);
updateEventVariables();
delete qso;
if (talker == qso)
{
talker = findFirstTalker();
}
it = find(outgoing_con_pending.begin(), outgoing_con_pending.end(), qso);
if (it != outgoing_con_pending.end())
{
outgoing_con_pending.erase(it);
}
qso = 0;
//broadcastTalkerStatus();
//updateDescription();
if (LocationInfo::has_instance())
{
list<string> call_list;
listQsoCallsigns(call_list);
LocationInfo::instance()->updateQsoStatus(0, callsign, "", call_list);
}
checkIdle();
} /* ModuleEchoLink::destroyQsoObject */
/*
*----------------------------------------------------------------------------
* Method: getDirectoryList
* Purpose: Initiate the process of getting a directory list from the
* directory server. A timer is also setup to automatically
* refresh the directory listing.
* Input: timer - The timer instance (not used)
* Output: None
* Author: Tobias Blomberg / SM0SVX
* Created: 2004-03-07
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::getDirectoryList(Timer *timer)
{
delete dir_refresh_timer;
dir_refresh_timer = 0;
if ((dir->status() == StationData::STAT_ONLINE) ||
(dir->status() == StationData::STAT_BUSY))
{
dir->getCalls();
dir_refresh_timer = new Timer(600000);
dir_refresh_timer->expired.connect(
mem_fun(*this, &ModuleEchoLink::getDirectoryList));
}
} /* ModuleEchoLink::getDirectoryList */
void ModuleEchoLink::createOutgoingConnection(const StationData &station)
{
if (station.callsign() == mycall)
{
cerr << "Cannot connect to myself (" << mycall << "/" << station.id()
<< ")...\n";
processEvent("self_connect");
return;
}
if ((regexec(reject_outgoing_regex, station.callsign().c_str(),
0, 0, 0) == 0) ||
(regexec(accept_outgoing_regex, station.callsign().c_str(),
0, 0, 0) != 0))
{
cerr << "Rejecting outgoing connection to " << station.callsign() << " ("
<< station.id() << ")\n";
stringstream ss;
ss << "reject_outgoing_connection " << station.callsign();
processEvent(ss.str());
return;
}
if (qsos.size() >= max_qsos)
{
cerr << "Couldn't connect to " << station.callsign() << " due to the "
<< "number of active connections (" << qsos.size() << " > "
<< max_qsos << ")" << endl;
processEvent("no_more_connections_allowed");
return;
}
cout << "Connecting to " << station.callsign() << " (" << station.id()
<< ")\n";
QsoImpl *qso = 0;
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if ((*it)->remoteCallsign() == station.callsign())
{
if ((*it)->currentState() != Qso::STATE_DISCONNECTED)
{
cerr << "*** WARNING: Already connected to " << station.callsign()
<< ". Ignoring connect request.\n";
stringstream ss;
ss << "already_connected_to " << station.callsign();
processEvent(ss.str());
return;
}
qso = *it;
qsos.erase(it);
qsos.push_back(qso);
break;
}
}
if (qso == 0)
{
qso = new QsoImpl(station, this);
if (!qso->initOk())
{
delete qso;
cerr << "*** ERROR: Creation of Qso failed\n";
processEvent("internal_error");
return;
}
qsos.push_back(qso);
updateEventVariables();
qso->setRemoteCallsign(station.callsign());
qso->setListenOnly(!listen_only_valve->isOpen());
qso->stateChange.connect(mem_fun(*this, &ModuleEchoLink::onStateChange));
qso->chatMsgReceived.connect(
mem_fun(*this, &ModuleEchoLink::onChatMsgReceived));
qso->isReceiving.connect(mem_fun(*this, &ModuleEchoLink::onIsReceiving));
qso->audioReceivedRaw.connect(
mem_fun(*this, &ModuleEchoLink::audioFromRemoteRaw));
qso->destroyMe.connect(mem_fun(*this, &ModuleEchoLink::destroyQsoObject));
splitter->addSink(qso);
selector->addSource(qso);
selector->enableAutoSelect(qso, 0);
}
stringstream ss;
ss << "connecting_to " << qso->remoteCallsign();
processEvent(ss.str());
outgoing_con_pending.push_back(qso);
if (LocationInfo::has_instance())
{
stringstream info;
info << station.id();
list<string> call_list;
listQsoCallsigns(call_list);
LocationInfo::instance()->updateQsoStatus(1, station.callsign(),
info.str(), call_list);
}
checkIdle();
} /* ModuleEchoLink::createOutgoingConnection */
void ModuleEchoLink::audioFromRemoteRaw(Qso::RawPacket *packet,
QsoImpl *qso)
{
if (!listen_only_valve->isOpen())
{
return;
}
if ((qso == talker) && !squelch_is_open)
{
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if (*it != qso)
{
(*it)->sendAudioRaw(packet);
}
}
}
} /* ModuleEchoLink::audioFromRemoteRaw */
QsoImpl *ModuleEchoLink::findFirstTalker(void) const
{
vector<QsoImpl*>::const_iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if ((*it)->receivingAudio())
{
return *it;
}
}
return 0;
} /* ModuleEchoLink::findFirstTalker */
void ModuleEchoLink::broadcastTalkerStatus(void)
{
if (max_qsos < 2)
{
return;
}
stringstream msg;
msg << "SvxLink " << SVXLINK_VERSION << " - " << mycall
<< " (" << numConnectedStations() << ")\n\n";
if (squelch_is_open && listen_only_valve->isOpen())
{
const char* sysop_name = bridge.getTalker();
msg << "> " << mycall << " " << sysop_name << "\n\n";
}
else
{
if (talker != 0)
{
msg << "> " << talker->remoteCallsign() << " "
<< talker->remoteName() << "\n\n";
bridge.setTalker(talker->remoteCallsign().c_str(), talker->remoteName().c_str());
}
msg << mycall << " ";
if (!listen_only_valve->isOpen())
{
msg << "[listen only] ";
}
msg << sysop_name << "\n";
}
vector<QsoImpl*>::const_iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if ((*it)->currentState() == Qso::STATE_DISCONNECTED)
{
continue;
}
if ((*it != talker) || squelch_is_open)
{
msg << (*it)->remoteCallsign() << " "
<< (*it)->remoteName() << "\n";
}
}
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
(*it)->sendInfoData(msg.str());
}
} /* ModuleEchoLink::broadcastTalkerStatus */
void ModuleEchoLink::updateDescription(void)
{
if (max_qsos < 2)
{
return;
}
string desc(location);
if (numConnectedStations() > 0)
{
stringstream sstr;
sstr << " (" << numConnectedStations() << ")";
desc.resize(Directory::MAX_DESCRIPTION_SIZE - sstr.str().size(), ' ');
desc += sstr.str();
}
dir->setDescription(desc);
dir->refreshRegistration();
} /* ModuleEchoLink::updateDescription */
void ModuleEchoLink::updateEventVariables(void)
{
stringstream ss;
ss << numConnectedStations();
string var_name(name());
var_name += "::num_connected_stations";
setEventVariable(var_name, ss.str());
} /* ModuleEchoLink::updateEventVariables */
void ModuleEchoLink::connectByCallsign(string cmd)
{
stringstream ss;
if (cmd.length() < 5)
{
ss << "cbc_too_short_cmd " << cmd;
processEvent(ss.str());
return;
}
string code;
bool exact;
if (cmd[cmd.size()-1] == '*')
{
code = cmd.substr(2, cmd.size() - 3);
exact = false;
}
else
{
code = cmd.substr(2);
exact = true;
}
cout << "Looking up callsign code: " << code << " "
<< (exact ? "(exact match)" : "(wildcard match)") << endl;
dir->findStationsByCode(cbc_stns, code, exact);
cout << "Found " << cbc_stns.size() << " stations:\n";
StnList::const_iterator it;
int cnt = 0;
for (it = cbc_stns.begin(); it != cbc_stns.end(); ++it)
{
cout << *it << endl;
if (++cnt >= 9)
{
break;
}
}
if (cbc_stns.size() == 0)
{
ss << "cbc_no_match " << code;
processEvent(ss.str());
return;
}
if (cbc_stns.size() > 9)
{
cout << "Too many matches. The search must be narrowed down.\n";
processEvent("cbc_too_many_matches");
return;
}
ss << "cbc_list [list";
for (it = cbc_stns.begin(); it != cbc_stns.end(); ++it)
{
ss << " " << (*it).callsign();
}
ss << "]";
processEvent(ss.str());
state = STATE_CONNECT_BY_CALL;
delete cbc_timer;
cbc_timer = new Timer(60000);
cbc_timer->expired.connect(mem_fun(*this, &ModuleEchoLink::cbcTimeout));
} /* ModuleEchoLink::connectByCallsign */
void ModuleEchoLink::handleConnectByCall(const string& cmd)
{
if (cmd.empty())
{
processEvent("cbc_aborted");
cbc_stns.clear();
delete cbc_timer;
cbc_timer = 0;
state = STATE_NORMAL;
return;
}
unsigned idx = static_cast<unsigned>(atoi(cmd.c_str()));
stringstream ss;
if (idx == 0)
{
ss << "cbc_list [list";
StnList::const_iterator it;
for (it = cbc_stns.begin(); it != cbc_stns.end(); ++it)
{
ss << " " << (*it).callsign();
}
ss << "]";
processEvent(ss.str());
cbc_timer->reset();
return;
}
if (idx > cbc_stns.size())
{
ss << "cbc_index_out_of_range " << idx;
processEvent(ss.str());
cbc_timer->reset();
return;
}
createOutgoingConnection(cbc_stns[idx-1]);
cbc_stns.clear();
delete cbc_timer;
cbc_timer = 0;
state = STATE_NORMAL;
} /* ModuleEchoLink::handleConnectByCall */
void ModuleEchoLink::cbcTimeout(Timer *t)
{
delete cbc_timer;
cbc_timer = 0;
cbc_stns.clear();
state = STATE_NORMAL;
cout << "Connect by call command timeout\n";
processEvent("cbc_timeout");
} /* ModuleEchoLink::cbcTimeout */
void ModuleEchoLink::disconnectByCallsign(const string &cmd)
{
if ((cmd.size() != 1) || qsos.empty())
{
commandFailed(cmd);
return;
}
stringstream ss;
ss << "dbc_list [list";
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if ((*it)->currentState() != Qso::STATE_DISCONNECTED)
{
ss << " " << (*it)->remoteCallsign();
}
}
ss << "]";
processEvent(ss.str());
state = STATE_DISCONNECT_BY_CALL;
delete dbc_timer;
dbc_timer = new Timer(60000);
dbc_timer->expired.connect(mem_fun(*this, &ModuleEchoLink::dbcTimeout));
} /* ModuleEchoLink::disconnectByCallsign */
void ModuleEchoLink::handleDisconnectByCall(const string& cmd)
{
if (cmd.empty())
{
processEvent("dbc_aborted");
delete dbc_timer;
dbc_timer = 0;
state = STATE_NORMAL;
return;
}
unsigned idx = static_cast<unsigned>(atoi(cmd.c_str()));
stringstream ss;
if (idx == 0)
{
ss << "dbc_list [list";
vector<QsoImpl*>::const_iterator it;
for (it = qsos.begin(); it != qsos.end(); ++it)
{
ss << " " << (*it)->remoteCallsign();
}
ss << "]";
processEvent(ss.str());
dbc_timer->reset();
return;
}
if (idx > qsos.size())
{
ss << "dbc_index_out_of_range " << idx;
processEvent(ss.str());
dbc_timer->reset();
return;
}
qsos[idx-1]->disconnect();
delete dbc_timer;
dbc_timer = 0;
state = STATE_NORMAL;
} /* ModuleEchoLink::handleDisconnectByCall */
void ModuleEchoLink::dbcTimeout(Timer *t)
{
delete dbc_timer;
dbc_timer = 0;
state = STATE_NORMAL;
cout << "Disconnect by call command timeout\n";
processEvent("dbc_timeout");
} /* ModuleEchoLink::dbcTimeout */
int ModuleEchoLink::numConnectedStations(void)
{
int cnt = 0;
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if ((*it)->currentState() != Qso::STATE_DISCONNECTED)
{
++cnt;
}
}
return cnt;
} /* ModuleEchoLink::numConnectedStations */
int ModuleEchoLink::listQsoCallsigns(list<string>& call_list)
{
call_list.clear();
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
call_list.push_back((*it)->remoteCallsign());
}
return call_list.size();
} /* ModuleEchoLink::listQsoCallsigns */
void ModuleEchoLink::handleCommand(const string& cmd)
{
if (cmd[0] == '0') // Help
{
playHelpMsg();
}
else if (cmd[0] == '1') // Connection status
{
if (cmd.size() != 1)
{
commandFailed(cmd);
return;
}
stringstream ss;
ss << "list_connected_stations [list";
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
if ((*it)->currentState() != Qso::STATE_DISCONNECTED)
{
ss << " " << (*it)->remoteCallsign();
}
}
ss << "]";
processEvent(ss.str());
}
else if (cmd[0] == '2') // Play own node id
{
if (cmd.size() != 1)
{
commandFailed(cmd);
return;
}
stringstream ss;
ss << "play_node_id ";
const StationData *station = dir->findCall(dir->callsign());
ss << (station ? station->id() : 0);
processEvent(ss.str());
}
else if (cmd[0] == '3') // Random connect
{
stringstream ss;
if (cmd.size() != 2)
{
commandFailed(cmd);
return;
}
vector<StationData> nodes;
if (cmd[1] == '1') // Random connect to link or repeater
{
const list<StationData>& links = dir->links();
const list<StationData>& repeaters = dir->repeaters();
list<StationData>::const_iterator it;
for (it=links.begin(); it!=links.end(); it++)
{
nodes.push_back(*it);
}
for (it=repeaters.begin(); it!=repeaters.end(); it++)
{
nodes.push_back(*it);
}
}
else if (cmd[1] == '2') // Random connect to conference
{
const list<StationData>& conferences = dir->conferences();
list<StationData>::const_iterator it;
for (it=conferences.begin(); it!=conferences.end(); it++)
{
nodes.push_back(*it);
}
}
else
{
commandFailed(cmd);
return;
}
double count = nodes.size();
if (count > 0)
{
srand(time(NULL));
// coverity[dont_call]
size_t random_idx = (size_t)(count * ((double)rand() / (1.0 + RAND_MAX)));
StationData station = nodes[random_idx];
cout << "Creating random connection to node:\n";
cout << station << endl;
createOutgoingConnection(station);
}
else
{
commandFailed(cmd);
return;
}
}
else if (cmd[0] == '4') // Reconnect to the last disconnected station
{
if ((cmd.size() != 1) || last_disc_stn.callsign().empty())
{
commandFailed(cmd);
return;
}
cout << "Trying to reconnect to " << last_disc_stn.callsign() << endl;
connectByNodeId(last_disc_stn.id());
}
else if (cmd[0] == '5') // Listen only
{
if (cmd.size() < 2)
{
commandFailed(cmd);
return;
}
bool activate = (cmd[1] != '0');
vector<QsoImpl*>::iterator it;
for (it=qsos.begin(); it!=qsos.end(); ++it)
{
(*it)->setListenOnly(activate);
}
stringstream ss;
ss << "listen_only " << (!listen_only_valve->isOpen() ? "1 " : "0 ")
<< (activate ? "1" : "0");
processEvent(ss.str());
listen_only_valve->setOpen(!activate);
}
else if (cmd[0] == '6') // Connect by callsign
{
connectByCallsign(cmd);
}
else if (cmd[0] == '7') // Disconnect by callsign
{
disconnectByCallsign(cmd);
}
else
{
stringstream ss;
ss << "unknown_command " << cmd;
processEvent(ss.str());
}
} /* ModuleEchoLink::handleCommand */
void ModuleEchoLink::commandFailed(const string& cmd)
{
stringstream ss;
ss << "command_failed " << cmd;
processEvent(ss.str());
} /* ModuleEchoLink::commandFailed */
void ModuleEchoLink::connectByNodeId(int node_id)
{
if ((dir->status() == StationData::STAT_OFFLINE) ||
(dir->status() == StationData::STAT_UNKNOWN))
{
cout << "*** ERROR: Directory server offline (status="
<< dir->statusStr() << "). Can't create outgoing connection.\n";
processEvent("directory_server_offline");
return;
}
const StationData *station = dir->findStation(node_id);
if (station != 0)
{
createOutgoingConnection(*station);
}
else
{
cout << "EchoLink ID " << node_id << " is not in the list. "
"Refreshing the list...\n";
getDirectoryList();
pending_connect_id = node_id;
}
} /* ModuleEchoLink::connectByNodeId */
void ModuleEchoLink::checkIdle(void)
{
setIdle(qsos.empty() &&
logicIsIdle() &&
(state == STATE_NORMAL));
} /* ModuleEchoLink::checkIdle */
/*
*----------------------------------------------------------------------------
* Method: checkAutoCon
* Purpose: Initiate the process of connecting to autocon_echolink_id
* Input: timer - the timer instance (not used)
* Output: None
* Author: Robbie De Lise / ON4SAX
* Created: 2010-07-30
* Remarks:
* Bugs:
*----------------------------------------------------------------------------
*/
void ModuleEchoLink::checkAutoCon(Timer *)
{
// Only try to activate the link if we are online and not
// currently connected to any station. A connection will only be attempted
// if module activation is successful.
if ((dir->status() == StationData::STAT_ONLINE)
&& (numConnectedStations() == 0)
&& activateMe())
{
cout << "ModuleEchoLink: Trying autoconnect to "
<< autocon_echolink_id << "\n";
connectByNodeId(autocon_echolink_id);
}
} /* ModuleEchoLink::checkAutoCon */
bool ModuleEchoLink::numConCheck(const std::string &callsign)
{
// Get current time
struct timeval con_time;
gettimeofday(&con_time, NULL);
// Refresh connect watch list
numConUpdate();
NumConMap::iterator cit = num_con_map.find(callsign);
if (cit != num_con_map.end())
{
// Get an alias (reference) to the callsign and NumConStn objects
const string &t_callsign = (*cit).first;
NumConStn &stn = (*cit).second;
// Calculate time difference from last connection
struct timeval diff_tv;
timersub(&con_time, &stn.last_con, &diff_tv);
// Bug in Win-Echolink? Number of connect requests up to 5/sec
// do not count stations if it's requesting 3-5/seconds
if (diff_tv.tv_sec > 3)
{
++stn.num_con;
stn.last_con = con_time;
cout << "### Station " << t_callsign << ", count " << stn.num_con << " of "
<< num_con_max << " possible number of connects" << endl;
}
// Number of connects are too high
if (stn.num_con > num_con_max)
{
time_t next = con_time.tv_sec + num_con_block_time;
char time_str[64];
strftime(time_str, sizeof(time_str), "%c", localtime(&next));
cerr << "*** WARNING: Ingnoring incoming connection because "
<< "the station (" << callsign << ") has connected "
<< "to often (" << stn.num_con << " times). "
<< "Next connect is possible after " << time_str << ".\n";
return false;
}
}
else
{
// Insert initial entry on first connect
cout << "### Register incoming station, count 1 of " << num_con_max
<< " possible number of connects" << endl;
num_con_map.insert(make_pair(callsign, NumConStn(1, con_time)));
}
return true;
} /* ModuleEchoLink::numConCheck */
void ModuleEchoLink::numConUpdate(void)
{
// Get current time
struct timeval now;
gettimeofday(&now, NULL);
NumConMap::iterator cit = num_con_map.begin();
while (cit != num_con_map.end())
{
// Get an alias (reference) to the callsign and NumConStn objects
const string &t_callsign = (*cit).first;
const NumConStn &stn = (*cit).second;
struct timeval remove_at = stn.last_con;
if (stn.num_con > num_con_max)
{
remove_at.tv_sec += num_con_block_time;
}
else
{
remove_at.tv_sec += num_con_ttl;
}
// If the entry have timed out, delete it
if (timercmp(&remove_at, &now, <))
{
cout << "### Delete " << t_callsign << " from watchlist" << endl;
num_con_map.erase(cit++);
}
else
{
if (stn.num_con > num_con_max)
{
cout << "### " << t_callsign << " is blocked" << endl;
}
++cit;
}
}
num_con_update_timer->reset();
} /* ModuleEchoLink::numConUpdate */
void ModuleEchoLink::replaceAll(std::string &str, const std::string &from,
const std::string &to) const
{
if(from.empty())
{
return;
}
size_t start_pos = 0;
while((start_pos = str.find(from, start_pos)) != std::string::npos)
{
str.replace(start_pos, from.length(), to);
start_pos += to.length();
}
} /* ModuleEchoLink::replaceAll */
/*
* This file has not been truncated
*/