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Bring in some of the good parts of dropfile-updates branch

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This commit is contained in:
Bryan Ashby 2018-06-22 23:06:01 -06:00
commit ef12cc0cfb
4 changed files with 207 additions and 236 deletions
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185
core/door.js
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@ -1,149 +1,122 @@
/* jslint node: true */
'use strict';
const stringFormat = require('./string_format.js');
const { Errors } = require('./enig_error.js');
const events = require('events');
const _ = require('lodash');
const pty = require('node-pty');
const decode = require('iconv-lite').decode;
const createServer = require('net').createServer;
exports.Door = Door;
module.exports = class Door {
constructor(client) {
this.client = client;
this.restored = false;
}
function Door(client, exeInfo) {
events.EventEmitter.call(this);
prepare(ioType, cb) {
this.io = ioType;
const self = this;
this.client = client;
this.exeInfo = exeInfo;
this.exeInfo.encoding = (this.exeInfo.encoding || 'cp437').toLowerCase();
let restored = false;
//
// Members of exeInfo:
// cmd
// args[]
// env{}
// cwd
// io
// encoding
// dropFile
// node
// inhSocket
//
this.doorDataHandler = function(data) {
self.client.term.write(decode(data, self.exeInfo.encoding));
};
this.restoreIo = function(piped) {
if(!restored && self.client.term.output) {
self.client.term.output.unpipe(piped);
self.client.term.output.resume();
restored = true;
}
};
this.prepareSocketIoServer = function(cb) {
if('socket' === self.exeInfo.io) {
const sockServer = createServer(conn => {
sockServer.getConnections( (err, count) => {
// We expect only one connection from our DOOR/emulator/etc.
if(!err && count <= 1) {
self.client.term.output.pipe(conn);
conn.on('data', self.doorDataHandler);
conn.once('end', () => {
return self.restoreIo(conn);
});
conn.once('error', err => {
self.client.log.info( { error : err.toString() }, 'Door socket server connection');
return self.restoreIo(conn);
});
}
});
});
sockServer.listen(0, () => {
return cb(null, sockServer);
});
} else {
// we currently only have to do any real setup for 'socket'
if('socket' !== ioType) {
return cb(null);
}
};
this.doorExited = function() {
self.emit('finished');
};
}
this.sockServer = createServer(conn => {
this.sockServer.getConnections( (err, count) => {
require('util').inherits(Door, events.EventEmitter);
// We expect only one connection from our DOOR/emulator/etc.
if(!err && count <= 1) {
this.client.term.output.pipe(conn);
Door.prototype.run = function() {
const self = this;
conn.on('data', this.doorDataHandler.bind(this));
this.prepareSocketIoServer( (err, sockServer) => {
if(err) {
this.client.log.warn( { error : err.toString() }, 'Failed executing door');
return self.doorExited();
}
conn.once('end', () => {
return this.restoreIo(conn);
});
// Expand arg strings, e.g. {dropFile} -> DOOR32.SYS
// :TODO: Use .map() here
let args = _.clone(self.exeInfo.args); // we need a copy so the original is not modified
for(let i = 0; i < args.length; ++i) {
args[i] = stringFormat(self.exeInfo.args[i], {
dropFile : self.exeInfo.dropFile,
node : self.exeInfo.node.toString(),
srvPort : sockServer ? sockServer.address().port.toString() : '-1',
userId : self.client.user.userId.toString(),
conn.once('error', err => {
this.client.log.info( { error : err.message }, 'Door socket server connection');
return this.restoreIo(conn);
});
}
});
});
this.sockServer.listen(0, () => {
return cb(null);
});
}
run(exeInfo, cb) {
this.encoding = (exeInfo.encoding || 'cp437').toLowerCase();
if('socket' === this.io && !this.sockServer) {
return cb(Errors.UnexpectedState('Socket server is not running'));
}
const door = pty.spawn(self.exeInfo.cmd, args, {
cols : self.client.term.termWidth,
rows : self.client.term.termHeight,
const formatObj = {
dropFile : exeInfo.dropFile,
dropFilePath : exeInfo.dropFilePath,
node : exeInfo.node.toString(),
srvPort : this.sockServer ? this.sockServer.address().port.toString() : '-1',
userId : this.client.user.userId.toString(),
};
const args = exeInfo.args.map( arg => stringFormat(arg, formatObj) );
const door = pty.spawn(exeInfo.cmd, args, {
cols : this.client.term.termWidth,
rows : this.client.term.termHeight,
// :TODO: cwd
env : self.exeInfo.env,
env : exeInfo.env,
encoding : null, // we want to handle all encoding ourself
});
if('stdio' === self.exeInfo.io) {
self.client.log.debug('Using stdio for door I/O');
if('stdio' === this.io) {
this.client.log.debug('Using stdio for door I/O');
self.client.term.output.pipe(door);
this.client.term.output.pipe(door);
door.on('data', self.doorDataHandler);
door.on('data', this.doorDataHandler.bind(this));
door.once('close', () => {
return self.restoreIo(door);
return this.restoreIo(door);
});
} else if('socket' === self.exeInfo.io) {
self.client.log.debug( { port : sockServer.address().port }, 'Using temporary socket server for door I/O');
} else if('socket' === this.io) {
this.client.log.debug(
{ srvPort : this.sockServer.address().port, srvSocket : this.sockServerSocket },
'Using temporary socket server for door I/O'
);
}
door.once('exit', exitCode => {
self.client.log.info( { exitCode : exitCode }, 'Door exited');
this.client.log.info( { exitCode : exitCode }, 'Door exited');
if(sockServer) {
sockServer.close();
if(this.sockServer) {
this.sockServer.close();
}
// we may not get a close
if('stdio' === self.exeInfo.io) {
self.restoreIo(door);
if('stdio' === this.io) {
this.restoreIo(door);
}
door.removeAllListeners();
return self.doorExited();
return cb(null);
});
});
}
doorDataHandler(data) {
this.client.term.write(decode(data, this.encoding));
}
restoreIo(piped) {
if(!this.restored && this.client.term.output) {
this.client.term.output.unpipe(piped);
this.client.term.output.resume();
this.restored = true;
}
}
};