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This commit is contained in:
Bryan Ashby
2022-06-05 14:04:25 -06:00
parent eecfb33ad5
commit 4881c2123a
172 changed files with 23696 additions and 18029 deletions
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111
core/servers/login/telnet.js
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@@ -9,17 +9,17 @@ const { Errors } = require('../../enig_error');
const net = require('net');
const {
TelnetSocket,
TelnetSpec: { Options, Commands }
TelnetSpec: { Options, Commands },
} = require('telnet-socket');
const { inherits } = require('util');
const ModuleInfo = exports.moduleInfo = {
name : 'Telnet',
desc : 'Telnet Server v2',
author : 'NuSkooler',
isSecure : false,
packageName : 'codes.l33t.enigma.telnet.server.v2',
};
const ModuleInfo = (exports.moduleInfo = {
name: 'Telnet',
desc: 'Telnet Server v2',
author: 'NuSkooler',
isSecure: false,
packageName: 'codes.l33t.enigma.telnet.server.v2',
});
class TelnetClient {
constructor(socket) {
@@ -36,14 +36,14 @@ class TelnetClient {
this._clientReady();
}, 3000);
this.dataHandler = function(data) {
this.dataHandler = function (data) {
this.emit('data', data);
}.bind(this);
this.socket.on('data', this.dataHandler);
this.socket.on('error', err => {
this._logDebug({ error : err.message }, 'Socket error');
this._logDebug({ error: err.message }, 'Socket error');
return this.emit('end');
});
@@ -52,7 +52,7 @@ class TelnetClient {
});
this.socket.on('command error', (command, err) => {
this._logDebug({ command, error : err.message }, 'Command error');
this._logDebug({ command, error: err.message }, 'Command error');
});
this.socket.on('DO', command => {
@@ -61,12 +61,12 @@ class TelnetClient {
// the banner - some terminals will ask over and over
// if we respond to a DO with a WILL, so just don't
// do anything...
case Options.SGA :
case Options.ECHO :
case Options.TRANSMIT_BINARY :
case Options.SGA:
case Options.ECHO:
case Options.TRANSMIT_BINARY:
break;
default :
default:
return this.socket.command(Commands.WONT, command.option);
}
});
@@ -77,15 +77,18 @@ class TelnetClient {
this.socket.on('WILL', command => {
switch (command.option) {
case Options.TTYPE :
case Options.TTYPE:
return this.socket.sb.send.ttype();
case Options.NEW_ENVIRON :
return this.socket.sb.send.new_environ(
[ 'ROWS', 'COLUMNS', 'TERM', 'TERM_PROGRAM' ]
);
case Options.NEW_ENVIRON:
return this.socket.sb.send.new_environ([
'ROWS',
'COLUMNS',
'TERM',
'TERM_PROGRAM',
]);
default :
default:
break;
}
});
@@ -96,23 +99,29 @@ class TelnetClient {
this.socket.on('SB', command => {
switch (command.option) {
case Options.TTYPE :
case Options.TTYPE:
this.setTermType(command.optionData.ttype);
return this._clientReady();
case Options.NEW_ENVIRON :
case Options.NEW_ENVIRON:
{
this._logDebug(
{ vars : command.optionData.vars, uservars : command.optionData.uservars },
{
vars: command.optionData.vars,
uservars: command.optionData.uservars,
},
'New environment received'
);
// get a value from vars with fallback of user vars
const getValue = (name) => {
return command.optionData.vars &&
const getValue = name => {
return (
command.optionData.vars &&
(command.optionData.vars.find(nv => nv.name === name) ||
command.optionData.uservars.find(nv => nv.name === name)
);
command.optionData.uservars.find(
nv => nv.name === name
))
);
};
if ('unknown' === this.term.termType) {
@@ -124,13 +133,15 @@ class TelnetClient {
}
if (0 === this.term.termHeight || 0 === this.term.termWidth) {
const updateTermSize = (what) => {
const updateTermSize = what => {
const value = parseInt(getValue(what));
if (value) {
this.term[what === 'ROWS' ? 'termHeight' : 'termWidth'] = value;
this.term[
what === 'ROWS' ? 'termHeight' : 'termWidth'
] = value;
this._logDebug(
{ [ what ] : value, source : 'NEW-ENVIRON' },
{ [what]: value, source: 'NEW-ENVIRON' },
'Window size updated'
);
}
@@ -142,12 +153,12 @@ class TelnetClient {
}
break;
case Options.NAWS :
case Options.NAWS:
{
const { width, height } = command.optionData;
this.term.termWidth = width;
this.term.termHeight = height;
this.term.termWidth = width;
this.term.termHeight = height;
if (width) {
this.term.env.COLUMNS = width;
@@ -158,13 +169,13 @@ class TelnetClient {
}
this._logDebug(
{ width, height, source : 'NAWS' },
{ width, height, source: 'NAWS' },
'Windows size updated'
);
}
break;
default :
default:
return this._logTrace(command, 'SB');
}
});
@@ -197,8 +208,8 @@ class TelnetClient {
}
banner() {
this.socket.dont.echo(); // don't echo characters
this.socket.will.echo(); // ...we'll echo them back
this.socket.dont.echo(); // don't echo characters
this.socket.will.echo(); // ...we'll echo them back
this.socket.will.sga();
this.socket.do.sga();
@@ -229,7 +240,7 @@ class TelnetClient {
}
this.clientReadyHandled = true;
this.emit('ready', { firstMenu : Config().loginServers.telnet.firstMenu } );
this.emit('ready', { firstMenu: Config().loginServers.telnet.firstMenu });
}
}
@@ -241,14 +252,14 @@ exports.getModule = class TelnetServerModule extends LoginServerModule {
}
createServer(cb) {
this.server = net.createServer( socket => {
this.server = net.createServer(socket => {
const client = new TelnetClient(socket);
client.banner(); // start negotiations
client.banner(); // start negotiations
this.handleNewClient(client, socket, ModuleInfo);
});
this.server.on('error', err => {
Log.info( { error : err.message }, 'Telnet server error');
Log.info({ error: err.message }, 'Telnet server error');
});
return cb(null);
@@ -257,18 +268,24 @@ exports.getModule = class TelnetServerModule extends LoginServerModule {
listen(cb) {
const config = Config();
const port = parseInt(config.loginServers.telnet.port);
if(isNaN(port)) {
Log.error( { server : ModuleInfo.name, port : config.loginServers.telnet.port }, 'Cannot load server (invalid port)' );
if (isNaN(port)) {
Log.error(
{ server: ModuleInfo.name, port: config.loginServers.telnet.port },
'Cannot load server (invalid port)'
);
return cb(Errors.Invalid(`Invalid port: ${config.loginServers.telnet.port}`));
}
this.server.listen(port, config.loginServers.telnet.address, err => {
if(!err) {
Log.info( { server : ModuleInfo.name, port : port }, 'Listening for connections' );
if (!err) {
Log.info(
{ server: ModuleInfo.name, port: port },
'Listening for connections'
);
}
return cb(err);
});
}
};
exports.TelnetClient = TelnetClient; // WebSockets is a wrapper on top of this
exports.TelnetClient = TelnetClient; // WebSockets is a wrapper on top of this