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https://github.com/NuSkooler/enigma-bbs.git
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ENiGMA 1/2 WILL USE SPACES FROM THIS POINT ON VS TABS
* Really just to make GitHub formatting happy. Arg.
This commit is contained in:
Bryan Ashby
parent
5ddf04c882
commit
e9787cee3e
135 changed files with 27397 additions and 27397 deletions
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@ -28,191 +28,191 @@ const buffers = require('buffers');
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// :TODO: ENH: Support nodeMax and tooManyArt
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exports.moduleInfo = {
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name : 'Telnet Bridge',
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desc : 'Connect to other Telnet Systems',
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author : 'Andrew Pamment',
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name : 'Telnet Bridge',
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desc : 'Connect to other Telnet Systems',
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author : 'Andrew Pamment',
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};
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const IAC_DO_TERM_TYPE = Buffer.from( [ 255, 253, 24 ] );
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class TelnetClientConnection extends EventEmitter {
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constructor(client) {
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super();
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constructor(client) {
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super();
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this.client = client;
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}
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this.client = client;
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}
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restorePipe() {
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if(!this.pipeRestored) {
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this.pipeRestored = true;
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restorePipe() {
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if(!this.pipeRestored) {
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this.pipeRestored = true;
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// client may have bailed
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if(null !== _.get(this, 'client.term.output', null)) {
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if(this.bridgeConnection) {
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this.client.term.output.unpipe(this.bridgeConnection);
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}
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this.client.term.output.resume();
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}
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}
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}
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// client may have bailed
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if(null !== _.get(this, 'client.term.output', null)) {
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if(this.bridgeConnection) {
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this.client.term.output.unpipe(this.bridgeConnection);
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}
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this.client.term.output.resume();
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}
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}
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}
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connect(connectOpts) {
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this.bridgeConnection = net.createConnection(connectOpts, () => {
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this.emit('connected');
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connect(connectOpts) {
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this.bridgeConnection = net.createConnection(connectOpts, () => {
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this.emit('connected');
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this.pipeRestored = false;
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this.client.term.output.pipe(this.bridgeConnection);
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});
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this.pipeRestored = false;
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this.client.term.output.pipe(this.bridgeConnection);
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});
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this.bridgeConnection.on('data', data => {
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this.client.term.rawWrite(data);
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this.bridgeConnection.on('data', data => {
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this.client.term.rawWrite(data);
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//
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// Wait for a terminal type request, and send it eactly once.
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// This is enough (in additional to other negotiations handled in telnet.js)
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// to get us in on most systems
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//
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if(!this.termSent && data.indexOf(IAC_DO_TERM_TYPE) > -1) {
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this.termSent = true;
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this.bridgeConnection.write(this.getTermTypeNegotiationBuffer());
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}
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});
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//
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// Wait for a terminal type request, and send it eactly once.
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// This is enough (in additional to other negotiations handled in telnet.js)
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// to get us in on most systems
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//
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if(!this.termSent && data.indexOf(IAC_DO_TERM_TYPE) > -1) {
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this.termSent = true;
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this.bridgeConnection.write(this.getTermTypeNegotiationBuffer());
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}
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});
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this.bridgeConnection.once('end', () => {
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this.restorePipe();
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this.emit('end');
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});
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this.bridgeConnection.once('end', () => {
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this.restorePipe();
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this.emit('end');
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});
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this.bridgeConnection.once('error', err => {
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this.restorePipe();
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this.emit('end', err);
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});
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}
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this.bridgeConnection.once('error', err => {
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this.restorePipe();
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this.emit('end', err);
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});
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}
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disconnect() {
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if(this.bridgeConnection) {
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this.bridgeConnection.end();
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}
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}
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disconnect() {
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if(this.bridgeConnection) {
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this.bridgeConnection.end();
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}
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}
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destroy() {
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if(this.bridgeConnection) {
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this.bridgeConnection.destroy();
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this.bridgeConnection.removeAllListeners();
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this.restorePipe();
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this.emit('end');
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}
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}
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destroy() {
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if(this.bridgeConnection) {
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this.bridgeConnection.destroy();
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this.bridgeConnection.removeAllListeners();
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this.restorePipe();
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this.emit('end');
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}
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}
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getTermTypeNegotiationBuffer() {
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//
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// Create a TERMINAL-TYPE sub negotiation buffer using the
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// actual/current terminal type.
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//
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let bufs = buffers();
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getTermTypeNegotiationBuffer() {
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//
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// Create a TERMINAL-TYPE sub negotiation buffer using the
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// actual/current terminal type.
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//
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let bufs = buffers();
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bufs.push(Buffer.from(
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[
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255, // IAC
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250, // SB
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24, // TERMINAL-TYPE
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0, // IS
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]
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));
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bufs.push(Buffer.from(
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[
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255, // IAC
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250, // SB
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24, // TERMINAL-TYPE
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0, // IS
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]
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));
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bufs.push(
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Buffer.from(this.client.term.termType), // e.g. "ansi"
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Buffer.from( [ 255, 240 ] ) // IAC, SE
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);
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bufs.push(
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Buffer.from(this.client.term.termType), // e.g. "ansi"
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Buffer.from( [ 255, 240 ] ) // IAC, SE
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);
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return bufs.toBuffer();
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}
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return bufs.toBuffer();
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}
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}
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exports.getModule = class TelnetBridgeModule extends MenuModule {
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constructor(options) {
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super(options);
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constructor(options) {
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super(options);
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this.config = Object.assign({}, _.get(options, 'menuConfig.config'), options.extraArgs);
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this.config.port = this.config.port || 23;
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}
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this.config = Object.assign({}, _.get(options, 'menuConfig.config'), options.extraArgs);
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this.config.port = this.config.port || 23;
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}
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initSequence() {
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let clientTerminated;
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const self = this;
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initSequence() {
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let clientTerminated;
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const self = this;
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async.series(
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[
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function validateConfig(callback) {
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if(_.isString(self.config.host) &&
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async.series(
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[
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function validateConfig(callback) {
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if(_.isString(self.config.host) &&
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_.isNumber(self.config.port))
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{
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callback(null);
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} else {
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callback(new Error('Configuration is missing required option(s)'));
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}
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},
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function createTelnetBridge(callback) {
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const connectOpts = {
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port : self.config.port,
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host : self.config.host,
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};
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{
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callback(null);
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} else {
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callback(new Error('Configuration is missing required option(s)'));
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}
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},
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function createTelnetBridge(callback) {
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const connectOpts = {
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port : self.config.port,
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host : self.config.host,
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};
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self.client.term.write(resetScreen());
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self.client.term.write(
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` Connecting to ${connectOpts.host}, please wait...\n (Press ESC to cancel)\n`
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);
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self.client.term.write(resetScreen());
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self.client.term.write(
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` Connecting to ${connectOpts.host}, please wait...\n (Press ESC to cancel)\n`
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);
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const telnetConnection = new TelnetClientConnection(self.client);
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const telnetConnection = new TelnetClientConnection(self.client);
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const connectionKeyPressHandler = (ch, key) => {
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if('escape' === key.name) {
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self.client.removeListener('key press', connectionKeyPressHandler);
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telnetConnection.destroy();
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}
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};
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const connectionKeyPressHandler = (ch, key) => {
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if('escape' === key.name) {
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self.client.removeListener('key press', connectionKeyPressHandler);
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telnetConnection.destroy();
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}
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};
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self.client.on('key press', connectionKeyPressHandler);
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self.client.on('key press', connectionKeyPressHandler);
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telnetConnection.on('connected', () => {
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self.client.removeListener('key press', connectionKeyPressHandler);
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self.client.log.info(connectOpts, 'Telnet bridge connection established');
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telnetConnection.on('connected', () => {
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self.client.removeListener('key press', connectionKeyPressHandler);
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self.client.log.info(connectOpts, 'Telnet bridge connection established');
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if(self.config.font) {
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self.client.term.rawWrite(setSyncTermFontWithAlias(self.config.font));
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}
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if(self.config.font) {
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self.client.term.rawWrite(setSyncTermFontWithAlias(self.config.font));
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}
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self.client.once('end', () => {
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self.client.log.info('Connection ended. Terminating connection');
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clientTerminated = true;
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telnetConnection.disconnect();
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});
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});
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self.client.once('end', () => {
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self.client.log.info('Connection ended. Terminating connection');
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clientTerminated = true;
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telnetConnection.disconnect();
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});
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});
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telnetConnection.on('end', err => {
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self.client.removeListener('key press', connectionKeyPressHandler);
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telnetConnection.on('end', err => {
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self.client.removeListener('key press', connectionKeyPressHandler);
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if(err) {
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self.client.log.info(`Telnet bridge connection error: ${err.message}`);
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}
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if(err) {
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self.client.log.info(`Telnet bridge connection error: ${err.message}`);
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}
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callback(clientTerminated ? new Error('Client connection terminated') : null);
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});
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callback(clientTerminated ? new Error('Client connection terminated') : null);
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});
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telnetConnection.connect(connectOpts);
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}
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],
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err => {
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if(err) {
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self.client.log.warn( { error : err.message }, 'Telnet connection error');
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}
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telnetConnection.connect(connectOpts);
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}
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],
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err => {
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if(err) {
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self.client.log.warn( { error : err.message }, 'Telnet connection error');
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}
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if(!clientTerminated) {
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self.prevMenu();
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}
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}
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);
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}
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if(!clientTerminated) {
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self.prevMenu();
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}
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}
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);
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}
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};
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