Add option to allow ICE server fallback

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

.env.example

@@ -6,6 +6,7 @@
 
 # Used for determining the homeserver to use for short urls etc.
 # VITE_DEFAULT_HOMESERVER=http://localhost:8008
+# VITE_FALLBACK_ICE_ALLOWED=true
 
 # Used for submitting debug logs to an external rageshake server
 # VITE_RAGESHAKE_SUBMIT_URL=http://localhost:9110/api/submit

src/ClientContext.tsx

@@ -34,6 +34,7 @@ import {
   initClient,
   defaultHomeserver,
   CryptoStoreIntegrityError,
+  fallbackICEServerAllowed,
 } from "./matrix-utils";
 import { widget } from "./widget";
 import { translatedError } from "./TranslatedError";
@@ -130,6 +131,7 @@ export const ClientProvider: FC<Props> = ({ children }) => {
                   accessToken: access_token,
                   userId: user_id,
                   deviceId: device_id,
+                  fallbackICEServerAllowed: fallbackICEServerAllowed,
                 },
                 true
               ),
@@ -145,6 +147,7 @@ export const ClientProvider: FC<Props> = ({ children }) => {
                     accessToken: access_token,
                     userId: user_id,
                     deviceId: device_id,
+                    fallbackICEServerAllowed: fallbackICEServerAllowed,
                   },
                   false // Don't need the crypto store just to log out
                 );

src/matrix-utils.ts

@@ -24,6 +24,8 @@ import { getUrlParams } from "./UrlParams";
 export const defaultHomeserver =
   (import.meta.env.VITE_DEFAULT_HOMESERVER as string) ??
   `${window.location.protocol}//${window.location.host}`;
+export const fallbackICEServerAllowed =
+  import.meta.env.VITE_FALLBACK_ICE_ALLOWED === "true";
 
 export const defaultHomeserverHost = new URL(defaultHomeserver).host;
 
@@ -152,6 +154,7 @@ export async function initClient(
     // so we don't want API calls taking ages, we'd rather they just fail.
     localTimeoutMs: 5000,
     useE2eForGroupCall: e2eEnabled,
+    fallbackICEServerAllowed: fallbackICEServerAllowed,
   });
 
   try {