Move default homeserver to config file

src/ClientContext.tsx

@@ -32,7 +32,6 @@ import { useTranslation } from "react-i18next";
 import { ErrorView } from "./FullScreenView";
 import {
   initClient,
-  defaultHomeserver,
   CryptoStoreIntegrityError,
   fallbackICEServerAllowed,
 } from "./matrix-utils";
@@ -40,6 +39,7 @@ import { widget } from "./widget";
 import { PosthogAnalytics, RegistrationType } from "./PosthogAnalytics";
 import { translatedError } from "./TranslatedError";
 import { useEventTarget } from "./useEvents";
+import { Config } from "./config/Config";
 
 declare global {
   interface Window {
@@ -139,7 +139,7 @@ export const ClientProvider: FC<Props> = ({ children }) => {
             return {
               client: await initClient(
                 {
-                  baseUrl: defaultHomeserver,
+                  baseUrl: Config.defaultHomeserverUrl(),
                   accessToken: access_token,
                   userId: user_id,
                   deviceId: device_id,
@@ -155,7 +155,7 @@ export const ClientProvider: FC<Props> = ({ children }) => {
               try {
                 const client = await initClient(
                   {
-                    baseUrl: defaultHomeserver,
+                    baseUrl: Config.defaultHomeserverUrl(),
                     accessToken: access_token,
                     userId: user_id,
                     deviceId: device_id,

src/auth/LoginPage.tsx

@@ -29,11 +29,11 @@ import { ReactComponent as Logo } from "../icons/LogoLarge.svg";
 import { useClient } from "../ClientContext";
 import { FieldRow, InputField, ErrorMessage } from "../input/Input";
 import { Button } from "../button";
-import { defaultHomeserver, defaultHomeserverHost } from "../matrix-utils";
 import styles from "./LoginPage.module.css";
 import { useInteractiveLogin } from "./useInteractiveLogin";
 import { usePageTitle } from "../usePageTitle";
 import { PosthogAnalytics } from "../PosthogAnalytics";
+import { Config } from "../config/Config";
 
 export const LoginPage: FC = () => {
   const { t } = useTranslation();
@@ -41,7 +41,7 @@ export const LoginPage: FC = () => {
 
   const { setClient } = useClient();
   const login = useInteractiveLogin();
-  const homeserver = defaultHomeserver; // TODO: Make this configurable
+  const homeserver = Config.defaultHomeserverUrl(); // TODO: Make this configurable
   const usernameRef = useRef<HTMLInputElement>();
   const passwordRef = useRef<HTMLInputElement>();
   const history = useHistory();
@@ -76,11 +76,9 @@ export const LoginPage: FC = () => {
   );
 
   const homeserverHost = useMemo(() => {
-    try {
+    // XXX: This isn't really correct: the server name of an HS may not
+    // be the same as the hostname of the client API endpoint.
     return new URL(homeserver).host;
-    } catch (error) {
-      return defaultHomeserverHost;
-    }
   }, [homeserver]);
 
   return (

src/auth/RegisterPage.tsx

@@ -31,7 +31,6 @@ import { Trans, useTranslation } from "react-i18next";
 import { FieldRow, InputField, ErrorMessage } from "../input/Input";
 import { Button } from "../button";
 import { useClient } from "../ClientContext";
-import { defaultHomeserverHost } from "../matrix-utils";
 import { useInteractiveRegistration } from "./useInteractiveRegistration";
 import styles from "./LoginPage.module.css";
 import { ReactComponent as Logo } from "../icons/LogoLarge.svg";
@@ -40,6 +39,7 @@ import { useRecaptcha } from "./useRecaptcha";
 import { Caption, Link } from "../typography/Typography";
 import { usePageTitle } from "../usePageTitle";
 import { PosthogAnalytics } from "../PosthogAnalytics";
+import { Config } from "../config/Config";
 
 export const RegisterPage: FC = () => {
   const { t } = useTranslation();
@@ -165,7 +165,7 @@ export const RegisterPage: FC = () => {
                   autoCorrect="off"
                   autoCapitalize="none"
                   prefix="@"
-                  suffix={`:${defaultHomeserverHost}`}
+                  suffix={`:${Config.defaultServerName()}`}
                 />
               </FieldRow>
               <FieldRow>

src/auth/useInteractiveLogin.ts

@@ -18,7 +18,7 @@ import { useCallback } from "react";
 import { InteractiveAuth } from "matrix-js-sdk/src/interactive-auth";
 import { createClient, MatrixClient } from "matrix-js-sdk/src/matrix";
 
-import { initClient, defaultHomeserver } from "../matrix-utils";
+import { initClient } from "../matrix-utils";
 import { Session } from "../ClientContext";
 
 export const useInteractiveLogin = () =>
@@ -59,7 +59,7 @@ export const useInteractiveLogin = () =>
 
     const client = await initClient(
       {
-        baseUrl: defaultHomeserver,
+        baseUrl: homeserver,
         accessToken: access_token,
         userId: user_id,
         deviceId: device_id,

src/auth/useInteractiveRegistration.ts

@@ -18,8 +18,9 @@ import { useState, useEffect, useCallback, useRef } from "react";
 import { InteractiveAuth } from "matrix-js-sdk/src/interactive-auth";
 import { createClient, MatrixClient } from "matrix-js-sdk/src/matrix";
 
-import { initClient, defaultHomeserver } from "../matrix-utils";
+import { initClient } from "../matrix-utils";
 import { Session } from "../ClientContext";
+import { Config } from "../config/Config";
 
 export const useInteractiveRegistration = (): [
   string,
@@ -37,7 +38,9 @@ export const useInteractiveRegistration = (): [
 
   const authClient = useRef<MatrixClient>();
   if (!authClient.current) {
-    authClient.current = createClient({ baseUrl: defaultHomeserver });
+    authClient.current = createClient({
+      baseUrl: Config.defaultHomeserverUrl(),
+    });
   }
 
   useEffect(() => {
@@ -92,7 +95,7 @@ export const useInteractiveRegistration = (): [
 
       const client = await initClient(
         {
-          baseUrl: defaultHomeserver,
+          baseUrl: Config.defaultHomeserverUrl(),
           accessToken: access_token,
           userId: user_id,
           deviceId: device_id,

src/config/Config.ts

@@ -14,11 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import {
-  DEFAULT_CONFIG,
-  ConfigOptions,
-  ResolvedConfigOptions,
-} from "./ConfigOptions";
+import { DEFAULT_CONFIG, ConfigOptions } from "./ConfigOptions";
 
 export class Config {
   private static internalInstance: Config;
@@ -41,7 +37,26 @@ export class Config {
     return Config.internalInstance.initPromise;
   }
 
-  public config: ResolvedConfigOptions;
+  // Convenience accessors
+  public static defaultHomeserverUrl(): string | undefined {
+    const defaultServerConfig = Config.instance.config.default_server_config;
+    if (!defaultServerConfig) {
+      return undefined;
+    }
+
+    return defaultServerConfig["m.homeserver"]?.base_url;
+  }
+
+  public static defaultServerName(): string | undefined {
+    const defaultServerConfig = Config.instance.config.default_server_config;
+    if (!defaultServerConfig) {
+      return undefined;
+    }
+
+    return defaultServerConfig["m.homeserver"]?.server_name;
+  }
+
+  public config: ConfigOptions;
   private initPromise: Promise<void>;
 }
 
@@ -59,7 +74,7 @@ async function downloadConfig(
     // Lack of a config isn't an error, we should just use the defaults.
     // Also treat a blank config as no config, assuming the status code is 0, because we don't get 404s from file:
     // URIs so this is the only way we can not fail if the file doesn't exist when loading from a file:// URI.
-    return {};
+    return DEFAULT_CONFIG;
   }
 
   return res.json();

src/config/ConfigOptions.ts

@@ -19,21 +19,24 @@ export interface ConfigOptions {
   rageshake?: {
     submit_url: string;
   };
-}
 
-export interface ResolvedConfigOptions extends ConfigOptions {
-  sentry: {
-    DSN: string;
-    environment: string;
+  // Describes the default homeserver to use. The same format as Element Web
+  // (without identity servers as we don't use them).
+  default_server_config: {
+    ["m.homeserver"]: {
+      base_url: string;
+      server_name: string;
     };
-  rageshake: {
-    submit_url: string;
   };
 }
 
-export const DEFAULT_CONFIG: ResolvedConfigOptions = {
-  sentry: { DSN: "", environment: "production" },
-  rageshake: {
-    submit_url: "https://element.io/bugreports/submit",
+export const DEFAULT_CONFIG: ConfigOptions = {
+  default_server_config: {
+    ["m.homeserver"]: {
+      // These are probably poor guesses - we may want to just not work without
+      // a config file.
+      base_url: `${window.location.protocol}//${window.location.host}`,
+      server_name: window.location.host,
+    },
   },
 };

src/initializer.tsx

@@ -23,7 +23,6 @@ import * as Sentry from "@sentry/react";
 
 import { getUrlParams } from "./UrlParams";
 import { Config } from "./config/Config";
-import { DEFAULT_CONFIG } from "./config/ConfigOptions";
 
 enum LoadState {
   None,
@@ -193,10 +192,8 @@ export class Initializer {
       this.loadStates.config === LoadState.Loaded
     ) {
       Sentry.init({
-        dsn: Config.instance.config.sentry?.DSN ?? DEFAULT_CONFIG.sentry.DSN,
-        environment:
-          Config.instance.config.sentry.environment ??
-          DEFAULT_CONFIG.sentry.environment,
+        dsn: Config.instance.config.sentry?.DSN,
+        environment: Config.instance.config.sentry?.environment,
         integrations: [
           new Integrations.BrowserTracing({
             routingInstrumentation:

src/matrix-utils.ts

@@ -19,15 +19,11 @@ import type { Room } from "matrix-js-sdk/src/models/room";
 import IndexedDBWorker from "./IndexedDBWorker?worker";
 import { getUrlParams } from "./UrlParams";
 import { loadOlm } from "./olm";
+import { Config } from "./config/Config";
 
-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_STUN_ALLOWED === "true";
 
-export const defaultHomeserverHost = new URL(defaultHomeserver).host;
-
 export class CryptoStoreIntegrityError extends Error {
   constructor() {
     super("Crypto store data was expected, but none was found");
@@ -206,7 +202,7 @@ export function roomNameFromRoomId(roomId: string): string {
     .toLowerCase();
 }
 
-export function isLocalRoomId(roomId: string): boolean {
+export function isLocalRoomId(roomId: string, client: MatrixClient): boolean {
   if (!roomId) {
     return false;
   }
@@ -217,7 +213,7 @@ export function isLocalRoomId(roomId: string): boolean {
     return false;
   }
 
-  return parts[1] === defaultHomeserverHost;
+  return parts[1] === client.getDomain();
 }
 
 export async function createRoom(
@@ -291,11 +287,12 @@ export async function createRoom(
   return [fullAliasFromRoomName(name, client), result.room_id];
 }
 
+// Returns a URL to that will load Element Call with the given room
 export function getRoomUrl(roomIdOrAlias: string): string {
   if (roomIdOrAlias.startsWith("#")) {
     const [localPart, host] = roomIdOrAlias.replace("#", "").split(":");
 
-    if (host !== defaultHomeserverHost) {
+    if (host !== Config.defaultServerName()) {
       return `${window.location.protocol}//${window.location.host}/room/${roomIdOrAlias}`;
     } else {
       return `${window.location.protocol}//${window.location.host}/${localPart}`;

src/room/RoomRedirect.tsx

@@ -17,9 +17,11 @@ limitations under the License.
 import React, { useEffect } from "react";
 import { useLocation, useHistory } from "react-router-dom";
 
-import { defaultHomeserverHost } from "../matrix-utils";
+import { Config } from "../config/Config";
 import { LoadingView } from "../FullScreenView";
 
+// A component that, when loaded, redirects the client to a full room URL
+// based on the current URL being an abbreviated room URL
 export function RoomRedirect() {
   const { pathname } = useLocation();
   const history = useHistory();
@@ -32,7 +34,7 @@ export function RoomRedirect() {
     }
 
     if (!roomId.startsWith("#") && !roomId.startsWith("!")) {
-      roomId = `#${roomId}:${defaultHomeserverHost}`;
+      roomId = `#${roomId}:${Config.defaultServerName()}`;
     }
 
     history.replace(`/room/${roomId.toLowerCase()}`);

src/room/useLoadGroupCall.ts

@@ -61,7 +61,7 @@ export const useLoadGroupCall = (
         return room;
       } catch (error) {
         if (
-          isLocalRoomId(roomIdOrAlias) &&
+          isLocalRoomId(roomIdOrAlias, client) &&
           (error.errcode === "M_NOT_FOUND" ||
             (error.message &&
               error.message.indexOf("Failed to fetch alias") !== -1))

src/usePageTitle.ts

@@ -18,7 +18,7 @@ import { useEffect } from "react";
 
 export function usePageTitle(title: string): void {
   useEffect(() => {
-    const productName = import.meta.env.VITE_PRODUCT_NAME || "Element Call";
+    const productName = "Element Call";
     document.title = title ? `${productName} | ${title}` : productName;
   }, [title]);
 }

vite.config.js

@@ -31,7 +31,7 @@ export default defineConfig(({ mode }) => {
       svgrPlugin(),
       htmlTemplate.default({
         data: {
-          title: env.VITE_PRODUCT_NAME || "Element Call",
+          title: "Element Call",
         },
       }),
     ],