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* Doors can now optionally spawn a temporary server for I/O (e.g. to be used for virtual serial port for QEMU/etc.)

This commit is contained in:
Bryan Ashby 2015-12-02 22:10:45 -07:00
parent d90b754caf
commit 5087467eeb
2 changed files with 127 additions and 51 deletions
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130
core/door.js
View File

@ -7,6 +7,8 @@ var events = require('events');
var _ = require('lodash');
var pty = require('ptyw.js');
var decode = require('iconv-lite').decode;
var net = require('net');
var async = require('async');
exports.Door = Door;
@ -18,12 +20,18 @@ function Door(client, exeInfo) {
this.exeInfo.encoding = this.exeInfo.encoding || 'cp437';
// exeInfo.cmd
// exeInfo.args[]
// exeInfo.env{}
// exeInfo.cwd
// exeInfo.encoding
//
// Members of exeInfo:
// cmd
// args[]
// env{}
// cwd
// io
// encoding
// dropFile
// node
// inhSocket
//
}
require('util').inherits(Door, events.EventEmitter);
@ -34,39 +42,95 @@ Door.prototype.run = function() {
var self = this;
var door = pty.spawn(self.exeInfo.cmd, self.exeInfo.args, {
cols : self.client.term.termWidth,
rows : self.client.term.termHeight,
// :TODO: cwd
env : self.exeInfo.env,
//encoding : self.client.term.outputEncoding,
});
var doorData = function(data) {
self.client.term.write(decode(data, self.exeInfo.encoding));
};
// :TODO: can we pause the stream, write our own "Loading...", then on resume?
var sockServer;
//door.pipe(self.client.term.output);
self.client.term.output.pipe(door);
// :TODO: do this with pluggable pipe/filter classes
async.series(
[
function prepareServer(callback) {
if('socket' === self.exeInfo.io) {
sockServer = net.createServer(function connected(conn) {
// :TODO: This causes an error to be thrown when e.g. 'cp437' is used due to Node buffer changes
//door.setEncoding(this.exeInfo.encoding);
sockServer.getConnections(function connCount(err, count) {
door.on('data', function doorData(data) {
self.client.term.write(decode(data, self.client.term.outputEncoding));
});
// We expect only one connection from our DOOR/emulator/etc.
if(!err && count <= 1) {
self.client.term.output.pipe(conn);
conn.on('data', doorData);
door.on('close', function closed() {
self.client.term.output.unpipe(door);
self.client.term.output.resume();
});
conn.on('end', function ended() {
self.client.term.output.unpipe(conn);
self.client.term.output.resume();
});
}
});
});
door.on('exit', function exited(code) {
self.client.log.info( { code : code }, 'Door exited');
sockServer.listen(0, function listening() {
callback(null);
});
} else {
callback(null);
}
},
function launch(callback) {
// Expand arg strings, e.g. {dropFile} -> DOOR32.SYS
var args = _.clone(self.exeInfo.args); // we need a copy so the original is not modified
door.removeAllListeners();
for(var i = 0; i < args.length; ++i) {
args[i] = self.exeInfo.args[i].format({
dropFile : self.exeInfo.dropFile,
node : self.exeInfo.node.toString(),
inhSocket : self.exeInfo.inhSocket.toString(),
srvPort : sockServer ? sockServer.address().port.toString() : '-1',
});
}
self.emit('finished');
});
var door = pty.spawn(self.exeInfo.cmd, args, {
cols : self.client.term.termWidth,
rows : self.client.term.termHeight,
// :TODO: cwd
env : self.exeInfo.env,
});
if('stdio' === self.exeInfo.io) {
self.client.log.debug('Using stdio for door I/O');
self.client.term.output.pipe(door);
door.on('data', doorData);
door.on('close', function closed() {
self.client.term.output.unpipe(door);
self.client.term.output.resume();
});
} else if('socket' === self.exeInfo.io) {
self.client.log.debug(
{ port : sockServer.address().port },
'Using temporary socket server for door I/O');
}
door.on('exit', function exited(code) {
self.client.log.info( { code : code }, 'Door exited');
if(sockServer) {
sockServer.close();
}
door.removeAllListeners();
self.emit('finished');
});
}
],
function complete(err) {
if(err) {
self.client.log.warn( { error : err.toString() }, 'Failed executing door');
}
}
);
};

48
mods/abracadabra.js
View File

@ -12,6 +12,7 @@ var assert = require('assert');
var mkdirp = require('mkdirp');
var paths = require('path');
var _ = require('lodash');
var net = require('net');
// :TODO: This should really be a system module... needs a little work to allow for such
@ -30,6 +31,25 @@ exports.moduleInfo = {
/*
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",
@ -129,27 +149,19 @@ function AbracadabraModule(options) {
);
};
this.runDosEmuDoor = function() {
};
this.runDoor = function() {
var exeInfo = {
cmd : this.config.cmd,
args : this.config.args,
cmd : self.config.cmd,
args : self.config.args,
io : self.config.io || 'stdio',
encoding : self.config.encoding || self.client.term.outputEncoding,
dropFile : self.dropFile.fileName,
node : self.client.node,
inhSocket : self.client.output._handle.fd,
};
for(var i = 0; i < exeInfo.args.length; ++i) {
exeInfo.args[i] = exeInfo.args[i].format( {
dropFile : self.dropFile.fileName,
node : self.client.node.toString(),
socket : self.client.output._handle.fd.toString(), // ugg!
});
}
var doorInstance = new door.Door(this.client, exeInfo);
var doorInstance = new door.Door(self.client, exeInfo);
doorInstance.on('finished', function doorFinished() {
self.prevMenu();
@ -163,10 +175,11 @@ function AbracadabraModule(options) {
require('util').inherits(AbracadabraModule, MenuModule);
/*
AbracadabraModule.prototype.enter = function(client) {
AbracadabraModule.super_.prototype.enter.call(this, client);
};
*/
AbracadabraModule.prototype.leave = function() {
AbracadabraModule.super_.prototype.leave.call(this);
@ -177,6 +190,5 @@ AbracadabraModule.prototype.leave = function() {
};
AbracadabraModule.prototype.finishedLoading = function() {
this.runDoor();
};