enigma-bbs/core/bbs.js

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/* jslint node: true */
'use strict';
// ENiGMA½
var conf = require('./config.js');
var logger = require('./logger.js');
var miscUtil = require('./misc_util.js');
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var database = require('./database.js');
var clientConns = require('./client_connections.js');
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var paths = require('path');
var async = require('async');
var util = require('util');
var _ = require('lodash');
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exports.bbsMain = bbsMain;
function bbsMain() {
async.waterfall(
[
function processArgs(callback) {
var args = parseArgs();
var configPath;
if(args.indexOf('--help') > 0) {
// :TODO: display help
} else {
var argCount = args.length;
for(var i = 0; i < argCount; ++i) {
var arg = args[i];
if('--config' == arg) {
configPath = args[i + 1];
}
}
}
var configPathSupplied = _.isString(configPath);
callback(null, configPath || conf.getDefaultPath(), configPathSupplied);
},
function initConfig(configPath, configPathSupplied, callback) {
conf.init(configPath, function configInit(err) {
//
// If the user supplied a path and we can't read/parse it
// then it's a fatal error
//
if(configPathSupplied && err) {
if('ENOENT' === err.code) {
console.error('Configuration file does not existing: ' + configPath);
} else {
console.error('Failed parsing configuration: ' + configPath);
}
callback(err);
} else {
callback(null);
}
});
},
function initSystem(callback) {
initialize(function init(err) {
if(err) {
console.error('Error initializing: ' + util.inspect(err));
}
callback(err);
});
}
],
function complete(err) {
if(!err) {
startListening();
}
}
);
}
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function parseArgs() {
var args = [];
process.argv.slice(2).forEach(function(val, index, array) {
args.push(val);
});
return args;
}
function initialize(cb) {
async.series(
[
function basicInit(callback) {
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();
});
// Init some extensions
require('iconv-lite').extendNodeEncodings();
require('string-format').extend(String.prototype, require('./string_util.js').stringFormatExtensions);
callback(null);
},
function initDatabases(callback) {
database.initializeDatabases();
callback(null);
},
function initThemes(callback) {
// Have to pull in here so it's after Config init
var theme = require('./theme.js');
theme.initAvailableThemes(function onThemesInit(err, themeCount) {
logger.log.info({ themeCount : themeCount }, 'Themes initialized');
callback(err);
});
},
function loadSysOpInformation(callback) {
//
// If user 1 has been created, we have a SysOp. Cache some information
// into Config.
//
var user = require('./user.js'); // must late load
user.getUserName(1, function unLoaded(err, sysOpUsername) {
if(err) {
callback(null); // non-fatal here
} else {
//
// Load some select properties to cache
//
var propLoadOpts = {
userId : 1,
names : [ 'real_name', 'sex', 'email_address' ],
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};
user.loadProperties(propLoadOpts, function propsLoaded(err, props) {
if(!err) {
conf.config.general.sysOp = {
username : sysOpUsername,
properties : props,
};
logger.log.info( { sysOp : conf.config.general.sysOp }, 'System Operator information cached');
}
callback(null); // any error is again, non-fatal here
});
}
});
}
],
function onComplete(err) {
cb(err);
}
);
}
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function startListening() {
if(!conf.config.servers) {
// :TODO: Log error ... output to stderr as well. We can do it all with the logger
logger.log.error('No servers configured');
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return [];
}
var moduleUtil = require('./module_util.js'); // late load so we get Config
moduleUtil.loadModulesForCategory('servers', function onServerModule(err, module) {
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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 moduleInst = new module.getModule();
var server = moduleInst.createServer();
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// :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(_.isUndefined(client.runtime)) {
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client.runtime = {};
}
clientConns.addNewClient(client);
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client.on('ready', function onClientReady() {
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// Go to module -- use default error handler
prepareClient(client, function onPrepared() {
require('./connect.js').connectEntry(client);
});
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});
client.on('end', function onClientEnd() {
clientConns.removeClient(client);
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});
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;
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l( { clientId : client.runtime.id }, 'Connection closed');
clientConns.removeClient(client);
});
client.on('idle timeout', function idleTimeout() {
client.log.info('User idle timeout expired');
client.gotoMenuModule( { name : 'idleLogoff' }, function goMenuRes(err) {
if(err) {
// likely just doesn't exist
client.term.write('\nIdle timeout expired. Goodbye!\n');
client.end();
}
});
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});
});
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server.on('error', function serverErr(err) {
logger.log.info(err); // 'close' should be handled after
});
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server.listen(port);
logger.log.info({ server : module.moduleInfo.name, port : port }, 'Listening for connections');
});
}
function prepareClient(client, cb) {
// :TODO: it feels like this should go somewhere else... and be a bit more elegant.
if('*' === conf.config.preLoginTheme) {
var theme = require('./theme.js');
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client.user.properties.theme_id = theme.getRandomTheme() || '';
theme.loadTheme(client.user.properties.theme_id, function themeLoaded(err, theme) {
client.currentTheme = theme;
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cb(null);
});
} else {
client.user.properties.theme_id = conf.config.preLoginTheme;
cb(null);
}
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}