@showbridge/lib/dist/lib/protocols/udp-protocol.js

Main library for showbridge protocol router

import { createSocket } from 'dgram';
import { fromBuffer } from 'osc-min';
import { OSCMessage, UDPMessage } from '../messages/index.js';
import { disabled, logger } from '../utils/index.js';
import Protocol from './protocol.js';
class UDPProtocol extends Protocol {
    constructor() {
        super(...arguments);
        this.oscBundleTag = Buffer.from('#bundle');
    }
    reload(params) {
        if (this.server !== undefined) {
            this.server.close();
            delete this.server;
        }
        this.server = createSocket('udp4');
        this.server.bind({
            address: params.address ? params.address : '0.0.0.0',
            port: params.port,
        }, () => {
            this.stopped = false;
            logger.debug(`udp: server setup on port ${this.server.address().address}:${this.server.address().port}`);
            this.server.on('message', (msg, rinfo) => {
                const sender = {
                    protocol: 'udp',
                    address: rinfo.address,
                    port: rinfo.port,
                };
                let message;
                // NOTE(jwetzell): starts with a '/' or #bundle
                if (msg[0] === 0x2f || msg.includes(this.oscBundleTag)) {
                    try {
                        message = new OSCMessage(fromBuffer(msg, true), sender);
                    }
                    catch (error) {
                        message = new UDPMessage(msg, sender);
                    }
                }
                else {
                    message = new UDPMessage(msg, sender);
                }
                this.emit('messageIn', message);
            });
            this.emit('started');
        });
        this.server.on('close', () => {
            this.stopped = true;
            this.emit('stopped');
        });
    }
    send(msg, port, host) {
        if (this.server === undefined) {
            logger.error('udp: server no longer exists');
            return;
        }
        this.server.send(msg, port, host);
    }
    stop() {
        if (this.server) {
            this.server.close();
        }
        else {
            this.emit('stopped');
        }
    }
    get status() {
        return {
            enabled: !disabled.protocols.has('udp'),
            listening: !this.stopped,
            address: this.server ? this.server.address() : {},
        };
    }
}
export default UDPProtocol;