enigma-bbs/core/abracadabra.js

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/* jslint node: true */
'use strict';
2017-11-24 23:23:15 +00:00
const MenuModule = require('./menu_module.js').MenuModule;
const DropFile = require('./dropfile.js').DropFile;
const door = require('./door.js');
const theme = require('./theme.js');
const ansi = require('./ansi_term.js');
const async = require('async');
const assert = require('assert');
const paths = require('path');
const _ = require('lodash');
const mkdirs = require('fs-extra').mkdirs;
// :TODO: This should really be a system module... needs a little work to allow for such
const activeDoorNodeInstances = {};
exports.moduleInfo = {
name : 'Abracadabra',
desc : 'External BBS Door Module',
author : 'NuSkooler',
};
/*
Example configuration for LORD under DOSEMU:
{
config: {
name: PimpWars
dropFileType: DORINFO
cmd: qemu-system-i386
args: [
"-localtime",
"freedos.img",
"-chardev",
"socket,port={srvPort},nowait,host=localhost,id=s0",
"-device",
"isa-serial,chardev=s0"
]
io: socket
}
}
listen: socket | stdio
{
"config" : {
"name" : "LORD",
"dropFileType" : "DOOR",
"cmd" : "/usr/bin/dosemu",
"args" : [ "-quiet", "-f", "/etc/dosemu/dosemu.conf", "X:\\PW\\START.BAT {dropfile} {node}" ] ],
"nodeMax" : 32,
"tooManyArt" : "toomany-lord.ans"
}
}
:TODO: See Mystic & others for other arg options that we may need to support
*/
exports.getModule = class AbracadabraModule extends MenuModule {
constructor(options) {
super(options);
this.config = options.menuConfig.config;
// :TODO: MenuModule.validateConfig(cb) -- validate config section gracefully instead of asserts! -- { key : type, key2 : type2, ... }
assert(_.isString(this.config.name, 'Config \'name\' is required'));
assert(_.isString(this.config.dropFileType, 'Config \'dropFileType\' is required'));
assert(_.isString(this.config.cmd, 'Config \'cmd\' is required'));
this.config.nodeMax = this.config.nodeMax || 0;
this.config.args = this.config.args || [];
}
/*
:TODO:
* disconnecting wile door is open leaves dosemu
* http://bbslink.net/sysop.php support
* Font support ala all other menus... or does this just work?
*/
initSequence() {
const self = this;
async.series(
[
function validateNodeCount(callback) {
if(self.config.nodeMax > 0 &&
_.isNumber(activeDoorNodeInstances[self.config.name]) &&
activeDoorNodeInstances[self.config.name] + 1 > self.config.nodeMax)
{
self.client.log.info(
{
name : self.config.name,
activeCount : activeDoorNodeInstances[self.config.name]
},
'Too many active instances');
if(_.isString(self.config.tooManyArt)) {
theme.displayThemeArt( { client : self.client, name : self.config.tooManyArt }, function displayed() {
self.pausePrompt( () => {
callback(new Error('Too many active instances'));
});
});
} else {
self.client.term.write('\nToo many active instances. Try again later.\n');
// :TODO: Use MenuModule.pausePrompt()
self.pausePrompt( () => {
callback(new Error('Too many active instances'));
});
}
} else {
// :TODO: JS elegant way to do this?
if(activeDoorNodeInstances[self.config.name]) {
activeDoorNodeInstances[self.config.name] += 1;
} else {
activeDoorNodeInstances[self.config.name] = 1;
}
callback(null);
}
},
function generateDropfile(callback) {
self.dropFile = new DropFile(self.client, self.config.dropFileType);
var fullPath = self.dropFile.fullPath;
mkdirs(paths.dirname(fullPath), function dirCreated(err) {
if(err) {
callback(err);
} else {
self.dropFile.createFile(function created(err) {
callback(err);
});
}
});
}
],
function complete(err) {
if(err) {
self.client.log.warn( { error : err.toString() }, 'Could not start door');
self.lastError = err;
self.prevMenu();
} else {
self.finishedLoading();
}
}
);
}
runDoor() {
const exeInfo = {
cmd : this.config.cmd,
args : this.config.args,
io : this.config.io || 'stdio',
encoding : this.config.encoding || this.client.term.outputEncoding,
dropFile : this.dropFile.fileName,
node : this.client.node,
//inhSocket : this.client.output._handle.fd,
};
const doorInstance = new door.Door(this.client, exeInfo);
doorInstance.once('finished', () => {
//
// Try to clean up various settings such as scroll regions that may
// have been set within the door
//
this.client.term.rawWrite(
ansi.normal() +
ansi.goto(this.client.term.termHeight, this.client.term.termWidth) +
ansi.setScrollRegion() +
ansi.goto(this.client.term.termHeight, 0) +
'\r\n\r\n'
);
this.prevMenu();
});
this.client.term.write(ansi.resetScreen());
doorInstance.run();
}
leave() {
super.leave();
if(!this.lastError) {
activeDoorNodeInstances[this.config.name] -= 1;
}
}
finishedLoading() {
this.runDoor();
}
};