allow custom port for API server (#204)

* allow custom port for API server

* add .editorconfig

.editorconfig

@@ -0,0 +1,3 @@
+[*.js]
+indent_style = space
+indent_size = 2

api/IMPLEMENTATION.md

@@ -1,5 +1,5 @@
 # esmBot Image API
-The esmBot image API is a combined HTTP and WebSocket API running on port 3762. The API supports very basic authentication, which is defined on the server via the PASS environment variable and is sent from the client via the Authentication header in both HTTP and WS requests.
+The esmBot image API is a combined HTTP and WebSocket API. 3762 is the default port to access the API. The API supports very basic authentication, which is defined on the server via the PASS environment variable and is sent from the client via the Authentication header in both HTTP and WS requests.
 
 ## HTTP
 

api/index.js

@@ -230,8 +230,8 @@ httpServer.on("upgrade", (req, sock, head) => {
 httpServer.on("error", (e) => {
   console.error("An HTTP error occurred: ", e);
 });
-
-httpServer.listen(3762, () => {
+const port = parseInt(process.env.PORT) || 3762;
+httpServer.listen(port, () => {
   log("HTTP and WS listening on port 3762");
 });
 

package-lock.json

@@ -1166,6 +1166,7 @@
     "node_modules/erlpack": {
       "version": "0.1.3",
       "resolved": "git+ssh://git@github.com/abalabahaha/erlpack.git#f7d730debe32c416d1b55b4217f8aef2ade05874",
+      "hasInstallScript": true,
       "license": "MIT",
       "optional": true,
       "dependencies": {

utils/imageConnection.js

@@ -25,8 +25,10 @@ const Rinit = 0x08;
 class ImageConnection {
   constructor(host, auth, tls = false) {
     this.requests = new Map();
+    if(!host.includes(":")){
+      host += ":3762";
+    }
     this.host = host;
-    this.port = 3762;
     this.auth = auth;
     this.tag = null;
     this.disconnected = false;
@@ -39,19 +41,19 @@ class ImageConnection {
     } else {
       this.wsproto = "ws";
     }
-    this.sockurl = `${this.wsproto}://${host}:${this.port}/sock`;
-    this.conn = new WebSocket(this.sockurl, {
-      headers: {
-        "Authentication": auth && auth !== "" ? auth : undefined
+    this.sockurl = `${this.wsproto}://${host}/sock`;
+    let headers = {};
+    if(auth){
+      headers.Authentication = auth;
     }
-    });
+    this.conn = new WebSocket(this.sockurl, {headers});
     let httpproto;
     if (tls) {
       httpproto = "https";
     } else {
       httpproto = "http";
     }
-    this.httpurl = `${httpproto}://${host}:${this.port}/image`;
+    this.httpurl = `${httpproto}://${host}/image`;
     this.conn.on("message", (msg) => this.onMessage(msg));
     this.conn.once("error", (err) => this.onError(err));
     this.conn.once("close", () => this.onClose());
@@ -87,7 +89,7 @@ class ImageConnection {
     }
     this.requests.clear();
     if (!this.disconnected) {
-      logger.warn(`Lost connection to ${this.host}:${this.port}, attempting to reconnect in 5 seconds...`);
+      logger.warn(`Lost connection to ${this.host}, attempting to reconnect in 5 seconds...`);
       await setTimeout(5000);
       this.conn = new WebSocket(this.sockurl, {
         headers: {

utils/misc.js

@@ -27,8 +27,8 @@ export async function clean(text) {
   const imageServers = JSON.parse(fs.readFileSync("./servers.json", { encoding: "utf8" })).image;
 
   for (const { server, auth } of imageServers) {
-    text = text.replaceAll(server, "<redacted>");
-    text = text.replaceAll(auth, "<redacted>");
+    text = optionalReplace(server);
+    text = optionalReplace(auth);
   }
 
   for (const env of Object.keys(parsed)) {