Add host/port "switchboard" module

Centrally list all hostnames and port numbers here. Need to push
this into IDZ further but I'm a bit short on time (so what else is
new).

src/hostname.ts

@@ -1,25 +0,0 @@
-import { existsSync, readFileSync } from "fs";
-import * as os from "os";
-
-const path = "./hostname.txt";
-let myHostname: string;
-
-if (!existsSync(path)) {
-  const osHostname = os.hostname();
-
-  console.log(
-    `Hostname: ${path} does not exist, sending OS hostname "${osHostname}" to clients. This may be unreliable!`
-  );
-
-  myHostname = osHostname;
-} else {
-  myHostname = readFileSync(path, { encoding: "ascii" }).trim();
-
-  console.log(
-    `Hostname: Sending configured hostname "${myHostname}" to clients`
-  );
-}
-
-export function hostname(): string {
-  return myHostname;
-}

src/idz/handler/loadServerList.ts

@@ -1,23 +1,21 @@
 import { LoadServerListRequest } from "../request/loadServerList";
 import { LoadServerListResponse } from "../response/loadServerList";
 import { Repositories } from "../repo";
-import { hostname } from "../../hostname";
+import { HOST_EXT, PORT_IDZ } from "../../switchboard";
 
 export function loadServerList(
   w: Repositories,
   req: LoadServerListRequest
 ): LoadServerListResponse {
-  const myHost = hostname();
-
   return {
     type: "load_server_list_res",
     status: 1,
     userDb: {
-      addr: myHost,
+      addr: HOST_EXT,
       tcp: 10000,
       http: 10001,
     },
-    matchAddr: myHost,
+    matchAddr: HOST_EXT,
     matchPort: {
       tcp: 10002,
       udpSend: 10003,
@@ -29,23 +27,23 @@ export function loadServerList(
       udpRecv: 10007,
     },
     event: {
-      addr: myHost,
+      addr: HOST_EXT,
       tcp: 10008,
     },
     screenshot: {
-      addr: myHost,
+      addr: HOST_EXT,
       tcp: 10009,
     },
-    pingReturn: myHost,
+    pingReturn: HOST_EXT,
     echo1: {
-      addr: myHost,
+      addr: HOST_EXT,
       udp: 10010,
     },
     echo2: {
-      addr: myHost,
+      addr: HOST_EXT,
       udp: 10011,
     },
-    newsUrl: `http://${myHost}:10012/news`,
+    newsUrl: `http://${HOST_EXT}:10012/news`,
-    reportErrorUrl: `http://${myHost}:10013/error`,
+    reportErrorUrl: `http://${HOST_EXT}:10013/error`,
   };
 }

src/idz/ping.ts

@@ -1,9 +1,9 @@
 import { createSocket } from "dgram";
 
-export default function createPing(port: number) {
+export default function createPing(port: number, host: string) {
   const socket = createSocket("udp4");
 
-  socket.bind(port);
+  socket.bind(port, host);
   socket.on("message", (msg, rinfo) => {
     console.log(`Idz Ping: Ping from ${rinfo.address}:${rinfo.port}`);
     socket.send(msg, rinfo.port, rinfo.address);

src/index.ts

@@ -12,23 +12,24 @@ import diva from "./diva";
 import idz from "./idz";
 import idzPing from "./idz/ping";
 import startup from "./startup";
+import * as Swb from "./switchboard";
 
 const tls = {
   cert: fs.readFileSync("pki/server.pem"),
   key: fs.readFileSync("pki/server.key"),
 };
 
-net.createServer(aimedb).listen(22345);
+net.createServer(aimedb).listen(Swb.PORT_AIMEDB, Swb.HOST_INT);
-http.createServer(startup).listen(80);
+http.createServer(startup).listen(Swb.PORT_STARTUP, Swb.HOST_INT);
-https.createServer(tls, billing).listen(8443);
+https.createServer(tls, billing).listen(Swb.PORT_BILLING, Swb.HOST_INT);
 
-http.createServer(chunithm).listen(9000);
+http.createServer(chunithm).listen(Swb.PORT_CHUNITHM, Swb.HOST_INT);
-http.createServer(diva).listen(9001);
+http.createServer(diva).listen(Swb.PORT_DIVA, Swb.HOST_INT);
 
-net.createServer(idz).listen(10000);
+net.createServer(idz).listen(Swb.PORT_IDZ.USERDB.TCP, Swb.HOST_INT);
-idzPing(10001);
+idzPing(10001, Swb.HOST_INT); // ?? tbd
-idzPing(10003);
+idzPing(Swb.PORT_IDZ.MATCH.UDP_SEND, Swb.HOST_INT);
-idzPing(10010);
+idzPing(Swb.PORT_IDZ.ECHO1, Swb.HOST_INT);
-idzPing(10011);
+idzPing(Swb.PORT_IDZ.ECHO2, Swb.HOST_INT);
 
 console.log("Startup OK");

src/startup.ts

@@ -5,19 +5,9 @@ import read = require("raw-body");
 
 import { unzipSync } from "zlib";
 
-import { hostname } from "./hostname";
+import { startupHost, startupUri } from "./switchboard";
 
 const hourDelta = parseInt(process.env.HOUR_DELTA || "0");
-const myHost = hostname();
-const uris = new Map<string, string>();
-
-uris.set("SDBT", `http://${myHost}:9000/`); // Chunithm
-uris.set("SBZV", `http://${myHost}:9001/`); // Project Diva Future Tone
-
-const hosts = new Map<string, string>();
-
-hosts.set("SDDF", `${myHost}:10000`); // Initial D Zero
-
 const app = express();
 
 // Startup request is url-encoded-ish... except it's also zlibed and base64ed.
@@ -80,8 +70,8 @@ app.post("/sys/servlet/PowerOn", function(req, resp) {
 
   const resParams = {
     stat: 1,
-    uri: uris.get(req.body.game_id) || "",
+    uri: startupUri(req.body.game_id),
-    host: hosts.get(req.body.game_id) || "",
+    host: startupHost(req.body.game_id),
     place_id: "123",
     name: process.env.SHOP_NAME,
     nickname: process.env.SHOP_NAME,

src/switchboard.ts

@@ -0,0 +1,84 @@
+import * as os from "os";
+
+const cfgHostExt: string | undefined = process.env.HOST_EXT;
+const cfgHostInt: string | undefined = process.env.HOST_INT;
+
+export const HOST_EXT = cfgHostExt !== undefined ? cfgHostExt : os.hostname();
+export const HOST_INT = cfgHostInt !== undefined ? cfgHostInt : "127.0.0.1";
+
+//
+// Core services. These ports cannot be changed
+//
+
+export const PORT_AIMEDB = 22345;
+export const PORT_BILLING = 8443;
+export const PORT_STARTUP = 80;
+
+//
+// Title services. These can be freely chosen.
+//
+
+export const PORT_CHUNITHM = 9001;
+export const PORT_DIVA = 9000;
+export const PORT_IDZ = {
+  // Most of these seem to be unused relics
+
+  USERDB: {
+    TCP: 10000,
+    HTTP: 10001,
+  },
+  MATCH: {
+    TCP: 10002,
+    UDP_SEND: 10003,
+    UDP_RECV: 10004,
+  },
+  TAG_MATCH: {
+    TCP: 10005,
+    UDP_SEND: 10006,
+    UDP_RECV: 10007,
+  },
+  EVENT: 10008,
+  SCREENSHOT: 10009,
+  ECHO1: 10010,
+  ECHO2: 10011,
+};
+
+//
+// Startup responses
+//
+
+const startupHosts = new Map<string, string>();
+
+startupHosts.set("SDDF", `${HOST_EXT}:${PORT_IDZ.USERDB.TCP}`);
+
+const startupUris = new Map<string, string>();
+
+startupUris.set("SDBT", `http://${HOST_EXT}:${PORT_CHUNITHM}/`);
+startupUris.set("SBZV", `http://${HOST_EXT}:${PORT_DIVA}/`);
+
+export function startupHost(model: string): string {
+  const val = startupHosts.get(model);
+
+  return val !== undefined ? val : "";
+}
+
+export function startupUri(model: string): string {
+  const val = startupUris.get(model);
+
+  return val !== undefined ? val : "";
+}
+
+//
+// Diagnostic dump
+//
+
+console.log(
+  `Switchboard: HOST_EXT: ${HOST_EXT} (Service host name sent to clients)`
+);
+console.log(`Switchboard: HOST_INT: ${HOST_INT} (Bind address)`);
+
+if (cfgHostExt === undefined || cfgHostInt === undefined) {
+  console.log(
+    "Switchboard: Warning: Check .env and env vars! Using unreliable fallback."
+  );
+}