server-side client configuration

5 files changed, 34 insertions, 17 deletions

diff --git a/client-web/source/index.ts b/client-web/source/index.ts
index 4772f94..4590625 100644
--- a/client-web/source/index.ts
+++ b/client-web/source/index.ts
@@ -17,18 +17,14 @@ import { Room } from "./room.ts"
 export const VERSION = "0.1.12"
 export const ROOM_CONTAINER = esection({ class: "room", aria_label: "user list" })
 
-export const RTC_CONFIG: RTCConfiguration = {
-    iceServers: [
-        {
-            urls: [
-                "turn:meet.metamuffin.org:16900",
-                "stun:meet.metamuffin.org:16900"
-            ],
-            username: "keksmeet",
-            credential: "ujCmetg6bm0"
-        },
-    ],
-    iceCandidatePoolSize: 10,
+export interface ClientConfig {
+    appearance: { accent: string }
+    webrtc: {
+        stun: string,
+        turn?: string,
+        turn_user?: string,
+        turn_cred?: string
+    }
 }
 
 export interface User {
@@ -51,7 +47,12 @@ window.onbeforeunload = ev => {
 let r: Room;
 export async function main() {
     document.body.append(LOGGER_CONTAINER)
-    log("*", "starting up")
+    log("*", "loading client config")
+    const config_res = await fetch("/config.json")
+    if (!config_res.ok) return log({ scope: "*", error: true }, "cannot load config")
+    const config: ClientConfig = await config_res.json()
+    log("*", "config loaded. starting")
+
     document.body.querySelectorAll("p").forEach(e => e.remove())
     const room_secret = load_params().rsecret
 
@@ -64,7 +65,16 @@ export async function main() {
     if (PREFS.warn_redirect) log({ scope: "crypto", warn: true }, "You were redirected from the old URL format. The server knows the room secret now - e2ee is insecure!")
 
     const conn = await (new SignalingConnection().connect(room_secret))
-    r = new Room(conn)
+    const rtc_config: RTCConfiguration = {
+        iceCandidatePoolSize: 10,
+        iceServers: [{
+            urls: [config.webrtc.stun, ...(config.webrtc.turn ? [config.webrtc.turn] : [])],
+            credential: config.webrtc.turn_cred,
+            username: config.webrtc.turn_user,
+        }]
+    }
+
+    r = new Room(conn, rtc_config)
 
     setup_keybinds(r)
     r.on_ready = () => {
diff --git a/client-web/source/preferences/decl.ts b/client-web/source/preferences/decl.ts
index f3f8e84..68cb9ee 100644
--- a/client-web/source/preferences/decl.ts
+++ b/client-web/source/preferences/decl.ts
@@ -18,7 +18,13 @@ export const PREF_DECLS = {
     username: { type: string, default: "guest-" + hex_id(), description: "Username", allow_url: true },
     warn_redirect: { type: bool, hidden: true, default: false, description: "Internal option that is set by a server redirect.", allow_url: true },
     image_view_popup: { type: bool, default: true, description: "Open image in popup instead of new tab" },
+
+    // TODO!
+    /* WEBRTC */
     webrtc_debug: { type: bool, default: false, description: "Show additional information for WebRTC related stuff" },
+    webrtc_stun: { type: string, default: "stun:meet.metamuffin.org:16900", description: "Custom STUN server (all participants must use the same server)" },
+    webrtc_turn: { type: optional(string), default: "turn:meet.metamuffin.org:16900", description: "Custom TURN server (all participants must use the same server)" },
+    webrtc_turn_cred: { type: optional(string), description: "TURN server credentials" },
 
     /* MEDIA */
     microphone_enabled: { type: bool, default: false, description: "Add one microphone track on startup" },
diff --git a/client-web/source/preferences/mod.ts b/client-web/source/preferences/mod.ts
index 04fae2c..8aefb0f 100644
--- a/client-web/source/preferences/mod.ts
+++ b/client-web/source/preferences/mod.ts
@@ -15,6 +15,7 @@ export interface PrefDecl<T> {
     optional?: boolean,
     hidden?: boolean
     allow_url?: boolean
+    require_reload?: boolean,
 }
 
 type Type = "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function";
diff --git a/client-web/source/room.ts b/client-web/source/room.ts
index a685f1d..27d2327 100644
--- a/client-web/source/room.ts
+++ b/client-web/source/room.ts
@@ -20,7 +20,7 @@ export class Room {
 
     public on_ready = () => { };
 
-    constructor(public signaling: SignalingConnection) {
+    constructor(public signaling: SignalingConnection, public rtc_config: RTCConfiguration) {
         this.signaling.control_handler = (a) => this.control_handler(a)
         this.signaling.relay_handler = (a, b) => this.relay_handler(a, b)
     }
diff --git a/client-web/source/user/remote.ts b/client-web/source/user/remote.ts
index bd89e0e..5e81cf7 100644
--- a/client-web/source/user/remote.ts
+++ b/client-web/source/user/remote.ts
@@ -7,7 +7,7 @@
 
 import { RelayMessage } from "../../../common/packets.d.ts";
 import { notify } from "../helper.ts";
-import { ROOM_CONTAINER, RTC_CONFIG } from "../index.ts"
+import { ROOM_CONTAINER } from "../index.ts"
 import { log } from "../logger.ts"
 import { PREFS } from "../preferences/mod.ts";
 import { new_remote_resource, RemoteResource } from "../resource/mod.ts";
@@ -28,7 +28,7 @@ export class RemoteUser extends User {
         room.remote_users.set(id, this)
 
         log("usermodel", `added remote user: ${this.display_name}`)
-        this.pc = new RTCPeerConnection(RTC_CONFIG)
+        this.pc = new RTCPeerConnection(room.rtc_config)
         this.pc.onicecandidate = ev => {
             if (!ev.candidate) return
             room.signaling.send_relay({ ice_candidate: ev.candidate.toJSON() }, this.id)