Building RPM and DEB packages with pkg and fpm

src/bin/www

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+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+const app = require('../app');
+const debug = require('debug')('ztncui:server');
+const http = require('http');
+const https = require('https');
+const fs = require('fs');
+
+const options = {
+  cert: fs.readFileSync('etc/tls/fullchain.pem'),
+  key: fs.readFileSync('etc/tls/privkey.pem')
+}
+
+/**
+ * Get ports from environment and store in Express.
+ */
+
+const http_port = normalizePort(process.env.HTTP_PORT || '3000');
+app.set('http_port', http_port);
+const https_port = normalizePort(process.env.HTTPS_PORT || null);
+app.set('https_port', https_port);
+
+/**
+ * Get interface address on which to listen for HTTPS requests from env.
+ */
+const https_host = process.env.HTTPS_HOST || null;
+app.set('https_host', https_host);
+
+/**
+ * Create HTTPS server and listen on localhost only for HTTP and
+ * on all network interfaces for HTTPS if HTTPS_PORT is set in env,
+ * or on specific interface if HTTPS_HOST is set in env.
+ */
+
+app.listen(http_port, 'localhost');
+const server = https.createServer(options, app);
+
+if (https_port) {
+  if (https_host) {
+    console.log('Listening for HTTPS requests on port ' + https_port + ' on address ' + https_host);
+  } else {
+    console.log('Listening for HTTPS requests on port ' + https_port + ' on all interfaces');
+  }
+  server.listen(https_port, https_host);
+}
+
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+  const port = parseInt(val, 10);
+
+  if (isNaN(port)) {
+    // named pipe
+    return val;
+  }
+
+  if (port >= 0) {
+    // port number
+    return port;
+  }
+
+  return false;
+}
+
+/**
+ * Event listener for HTTP/S server "error" event.
+ */
+
+function onError(error) {
+  if (error.syscall !== 'listen') {
+    throw error;
+  }
+
+  const bind = typeof http_port === 'string'
+    ? 'Pipe ' + http_port
+    : 'Port ' + http_port;
+
+  const sbind = typeof https_port === 'string'
+    ? 'Pipe ' + https_port
+    : 'Port ' + https_port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case 'EACCES':
+      console.error(bind + ' and ' + sbind + ' require elevated privileges');
+      process.exit(1);
+      break;
+    case 'EADDRINUSE':
+      console.error(bind + ' and/or ' + sbind + ' already in use');
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
+}
+
+/**
+ * Event listener for HTTPS server "listening" event.
+ */
+
+function onListening() {
+  const addr = server.address();
+  const bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
+  debug('Listening on ' + bind);
+}