enigma-bbs/core/bbs.js

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2014-10-17 02:21:06 +00:00
/* jslint node: true */
'use strict';
// ENiGMA½
var conf = require('./config.js');
var modules = require('./modules.js');
var logger = require('./logger.js');
var miscUtil = require('./misc_util.js');
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var database = require('./database.js');
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var iconv = require('iconv-lite');
var paths = require('path');
exports.bbsMain = function() {
var mainArgs = parseArgs();
var configPathSupplied = false;
var configPath = conf.defaultPath();
if(mainArgs.indexOf('--help') > 0) {
// :TODO: display help
} else {
var argCount = mainArgs.length;
for(var i = 0; i < argCount; ++i) {
var arg = mainArgs[i];
if('--config' == arg) {
configPathSupplied = true;
configPath = mainArgs[i + 1];
}
}
}
try {
conf.initFromFile(configPath);
} catch(e) {
//
// If the user supplied a config and we can't read, parse, whatever
// then output a error and bail.
//
if(configPathSupplied) {
if(e.code === 'ENOENT') {
console.error('Configuration file does not exist: ' + configPath);
}
return;
}
console.log('No configuration file found, creating defaults.');
conf.createDefault();
}
logger.init();
process.on('SIGINT', function onSigInt() {
// :TODO: for any client in |clientConnections|, if 'ready', send a "Server Disconnecting" + semi-gracefull hangup
// e.g. client.disconnectNow()
logger.log.info('Process interrupted, shutting down');
process.exit();
});
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database.initializeDatabases();
preServingInit();
startListening();
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};
function parseArgs() {
var args = [];
process.argv.slice(2).forEach(function(val, index, array) {
args.push(val);
});
return args;
}
function preServingInit() {
iconv.extendNodeEncodings();
}
var clientConnections = [];
function startListening() {
if(!conf.config.servers) {
// :TODO: Log error ... output to stderr as well. We can do it all with the logger
return [];
}
modules.loadModulesForCategory('servers', function onServerModule(err, module) {
if(err) {
logger.log.info(err);
return;
}
var port = parseInt(module.runtime.config.port);
if(isNaN(port)) {
logger.log.error({ port : module.runtime.config.port, server : module.moduleInfo.name }, 'Cannot load server (Invalid port)');
return;
}
var server = module.createServer();
// :TODO: handle maxConnections, e.g. conf.maxConnections
server.on('client', function onClient(client) {
//
// Start tracking the client. We'll assign it an ID which is
// just the index in our connections array.
//
if(typeof client.runtime === 'undefined') {
client.runtime = {};
}
addNewClient(client);
//client.runtime.id = clientConnections.push(client) - 1;
//logger.log.info({ clientId : client.runtime.id, from : client.address(), server : module.moduleInfo.name }, 'Client connected');
client.on('ready', function onClientReady() {
// Go to module -- use default error handler
modules.goto(conf.config.entryMod, client);
});
client.on('end', function onClientEnd() {
logger.log.info({ clientId : client.runtime.id }, 'Client disconnected');
removeClient(client);
});
client.on('error', function onClientError(err) {
logger.log.info({ clientId : client.runtime.id }, 'Connection error: %s' % err.message);
});
client.on('close', function onClientClose(hadError) {
var l = hadError ? logger.log.info : logger.log.debug;
l({ clientId : client.runtime.id }, 'Connection closed');
removeClient(client);
});
});
server.listen(port);
logger.log.info({ server : module.moduleInfo.name, port : port }, 'Listening for connections');
});
}
function addNewClient(client) {
var id = client.runtime.id = clientConnections.push(client) - 1;
logger.log.debug('Connection count is now %d', clientConnections.length);
return id;
}
function removeClient(client) {
var i = clientConnections.indexOf(client);
if(i > -1) {
clientConnections.splice(i, 1);
logger.log.debug('Connection count is now %d', clientConnections.length);
}
}