syslog-portal/dist/services/tcpServer.js

A portal for ingesting syslog data

import { randomUUID } from 'node:crypto';
import { BaseServer } from './baseServer.js';
import { createServer } from 'node:net';
export class TCPServer extends BaseServer {
    _server;
    _connections = new Set();
    _checkIn;
    startListening() {
        this._server = createServer();
        this._server?.listen(this._port);
        this._server?.on('connection', (clientSocket) => {
            this._connections.add(clientSocket);
            clientSocket.on('close', () => {
                this._connections.delete(clientSocket);
            });
            clientSocket.on('end', () => {
                clientSocket.end();
            });
            clientSocket.on('data', (buffer) => {
                this.parseMessage(buffer, {
                    address: clientSocket.remoteAddress,
                    port: clientSocket.remotePort,
                    family: clientSocket.remoteFamily,
                });
            });
        });
        this._entityId = randomUUID();
        this._healthMonitor.register(this._entityId, 'TCPServer', 20000);
        this._checkIn = setInterval(this.pingMonitor.bind(this), 15000);
        return Promise.resolve();
    }
    close() {
        if (this._checkIn)
            clearInterval(this._checkIn);
        this._healthMonitor.unregister(this._entityId);
        return new Promise((resolve, reject) => {
            this._server?.close((err) => {
                if (err)
                    return reject(err);
                return resolve();
            });
            this._connections.forEach((c) => c.end());
        });
    }
}
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