Convert bunch of utils to TS

src/utils/IdentityServerUtils.ts

@@ -0,0 +1,53 @@
+/*
+Copyright 2019 - 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { SERVICE_TYPES } from 'matrix-js-sdk/src/service-types';
+
+import SdkConfig from '../SdkConfig';
+import {MatrixClientPeg} from '../MatrixClientPeg';
+
+export function getDefaultIdentityServerUrl(): string {
+    return SdkConfig.get()['validated_server_config']['isUrl'];
+}
+
+export function useDefaultIdentityServer(): void {
+    const url = getDefaultIdentityServerUrl();
+    // Account data change will update localstorage, client, etc through dispatcher
+    MatrixClientPeg.get().setAccountData("m.identity_server", {
+        base_url: url,
+    });
+}
+
+export async function doesIdentityServerHaveTerms(fullUrl: string): Promise<boolean> {
+    let terms;
+    try {
+        terms = await MatrixClientPeg.get().getTerms(SERVICE_TYPES.IS, fullUrl);
+    } catch (e) {
+        console.error(e);
+        if (e.cors === "rejected" || e.httpStatus === 404) {
+            terms = null;
+        } else {
+            throw e;
+        }
+    }
+
+    return terms && terms["policies"] && (Object.keys(terms["policies"]).length > 0);
+}
+
+export function doesAccountDataHaveIdentityServer(): boolean {
+    const event = MatrixClientPeg.get().getAccountData("m.identity_server");
+    return event && event.getContent() && event.getContent()['base_url'];
+}