From f224e466c5f53a662bc237baa01466b258f20f1f Mon Sep 17 00:00:00 2001
From: Tau <tau@nowhere>
Date: Sun, 14 Apr 2019 14:02:40 -0400
Subject: [PATCH] Make hostname configurable

---
 .gitignore                        |  1 +
 src/hostname.ts                   | 25 +++++++++++++++++++++++++
 src/idz/handler/loadServerList.ts |  3 +--
 src/startup.ts                    |  3 ++-
 4 files changed, 29 insertions(+), 3 deletions(-)
 create mode 100644 src/hostname.ts

diff --git a/.gitignore b/.gitignore
index 6566c9e..428e6b4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ bin/
 node_modules/
 pki/
 state/
+hostname.txt
diff --git a/src/hostname.ts b/src/hostname.ts
new file mode 100644
index 0000000..5bbf108
--- /dev/null
+++ b/src/hostname.ts
@@ -0,0 +1,25 @@
+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;
+}
diff --git a/src/idz/handler/loadServerList.ts b/src/idz/handler/loadServerList.ts
index 2ff78b5..72f2232 100644
--- a/src/idz/handler/loadServerList.ts
+++ b/src/idz/handler/loadServerList.ts
@@ -1,8 +1,7 @@
-import { hostname } from "os";
-
 import { LoadServerListRequest } from "../request/loadServerList";
 import { LoadServerListResponse } from "../response/loadServerList";
 import { World } from "../world";
+import { hostname } from "../../hostname";
 
 export function loadServerList(
   w: World,
diff --git a/src/startup.ts b/src/startup.ts
index 56324c3..1ae8cd9 100644
--- a/src/startup.ts
+++ b/src/startup.ts
@@ -2,7 +2,8 @@ import express = require("express");
 import read = require("raw-body");
 
 import { unzipSync } from "zlib";
-import { hostname } from "os";
+
+import { hostname } from "./hostname";
 
 const myHost = hostname();
 const uris = new Map<string, string>();