2nd

2025-09-11 20:50:34 +00:00
parent 500166b0bc
commit de69b3d4de
18 changed files with 2427 additions and 0 deletions
@@ -0,0 +1,108 @@
+const yargs = require('yargs')   
+const ws = require('ws')
+const fs = require('fs')
+const RedisConnexion = require('./redisConnexion')
+const urlparser = require('url');
+const wssServer = require('./wssServer')
+const configHelper = require('./configHelper')
+
+
+const argv = yargs.command('wssGateway', 'Redis <=> Websocket message bus gateway', {})
+    .options({
+        'argv.debug': {
+            description: 'shows debug info',
+            alias: 'd',
+            type: 'boolean'
+        },
+    }).help().version('1.1').argv
+
+const debug = Boolean(process.env.DEBUG) || argv.debug
+
+const cfgh = new configHelper({
+    localfile: './wssGatewayConfig.json',
+    onAws: typeof(process.env.AWS_EXECUTION_ENV)=='string',
+    awsRegion: 'eu-west-1',
+    awsTable: 'bus-config',
+    awsServiceName: 'wssGateway',
+})
+
+async function startRedis(wssGatewayConfig) {
+    let REDIScnx = new RedisConnexion({
+        debug: debug,
+        config: wssGatewayConfig,
+    });
+    if(debug) console.log('Starting REDIS...');
+    await REDIScnx.redisLogin();
+    if(debug) console.log('REDIS Login OK');
+    await REDIScnx.redisChansStart();
+    if(debug) console.log('REDIS ChansStart OK');
+    return (REDIScnx);
+}
+
+
+cfgh.fetchConfig().then( wssGatewayConfig => {
+
+    if((!wssGatewayConfig) || (Object.keys(wssGatewayConfig).length<4)) {
+        console.error('Cannot get a valid configuration ! Aaarrghhh...')
+        process.exit()
+    }    
+    let httpLib
+    if(wssGatewayConfig.server.unsecure) httpLib = require('http')
+    else httpLib = require('https')
+
+
+    /////////////////////// Create & Start servers \\\\\\\\\\\\\\\\\\\\\\
+    console.log(`Debug mode : ${debug ? 'ON' : 'OFF'}`)
+    let options
+    if(!wssGatewayConfig.server.unsecure) {
+        options = {
+            key: fs.readFileSync(wssGatewayConfig.server.certKeyFile),
+            cert: fs.readFileSync(wssGatewayConfig.server.certFile),
+        };
+    } else options = {}
+
+    const httpRequestsHandler = function(request, res) {
+        let parsedUrl
+        try{
+            parsedUrl = new urlparser.URL(request.url, `http${wssGatewayConfig.server.unsecure ? '': 's'}://${request.headers.host}`);
+        } catch(e) { 
+            res.end()
+            return
+        }
+        if(parsedUrl.pathname === wssGatewayConfig.server.healthCheckPath) {
+            //if(debug) console.log('Got a  Health-Check Request')
+            res.end(JSON.stringify({
+                status: 'Healthy!',
+            }))
+        }
+    }
+
+    const HTTPserver = httpLib.createServer(options, httpRequestsHandler)
+        .listen(Number(wssGatewayConfig.server.listenPort),
+                wssGatewayConfig.server.listenHost ? wssGatewayConfig.server.listenHost : undefined,
+                function (req, res) {
+                    console.log(`HTTP${wssGatewayConfig.server.unsecure ? '': 'S'} now listening on ${wssGatewayConfig.server.listenHost}:${wssGatewayConfig.server.listenPort}\n`+
+                                `Websocket served at ${wssGatewayConfig.server.listenPath}\n`+
+                                `Healthcheck served at ${wssGatewayConfig.server.healthCheckPath}`)
+                });
+
+    // Start serving WSS
+    const wssServerOptions = {
+        server: HTTPserver,
+        path: wssGatewayConfig.server.listenPath,
+    }
+    if(!wssGatewayConfig.server.unsecure) {
+        wssServerOptions['key'] = fs.readFileSync(wssGatewayConfig.server.certKeyFile)
+        wssServerOptions['cert'] = fs.readFileSync(wssGatewayConfig.server.certFile)
+    }
+    const WSSServer = new ws.WebSocketServer(wssServerOptions);
+    console.log(`WS${wssGatewayConfig.server.unsecure ? '': 'S'}  server created for ${wssGatewayConfig.server.listenHost}:${wssGatewayConfig.server.listenPort}`)
+
+    startRedis(wssGatewayConfig).then((rediscnx) => {
+        if(debug) console.log('Redis started & logged in !');
+        const wssSrv = new wssServer(cfgh, WSSServer, rediscnx, debug);
+    });
+
+
+})
+