Add support for redirecting to external pages after logout

src/@types/global.d.ts

@@ -52,6 +52,7 @@ import { ConsoleLogger, IndexedDBLogStore } from "../rageshake/rageshake";
 import ActiveWidgetStore from "../stores/ActiveWidgetStore";
 import { Skinner } from "../Skinner";
 import AutoRageshakeStore from "../stores/AutoRageshakeStore";
+import { ConfigOptions } from "../SdkConfig";
 
 /* eslint-disable @typescript-eslint/naming-convention */
 
@@ -62,6 +63,7 @@ declare global {
         Olm: {
             init: () => Promise<void>;
         };
+        mxReactSdkConfig: ConfigOptions;
 
         // Needed for Safari, unknown to TypeScript
         webkitAudioContext: typeof AudioContext;

src/Lifecycle.ts

@@ -58,6 +58,7 @@ import LazyLoadingDisabledDialog from "./components/views/dialogs/LazyLoadingDis
 import SessionRestoreErrorDialog from "./components/views/dialogs/SessionRestoreErrorDialog";
 import StorageEvictedDialog from "./components/views/dialogs/StorageEvictedDialog";
 import { setSentryUser } from "./sentry";
+import SdkConfig from "./SdkConfig";
 
 const HOMESERVER_URL_KEY = "mx_hs_url";
 const ID_SERVER_URL_KEY = "mx_is_url";
@@ -845,6 +846,13 @@ export async function onLoggedOut(): Promise<void> {
     stopMatrixClient();
     await clearStorage({ deleteEverything: true });
     LifecycleCustomisations.onLoggedOutAndStorageCleared?.();
+
+    // Do this last so we can make sure all storage has been cleared and all
+    // customisations got the memo.
+    if (SdkConfig.get().logout_redirect_url) {
+        console.log("Redirecting to external provider to finish logout");
+        window.location.href = SdkConfig.get().logout_redirect_url;
+    }
 }
 
 /**

src/SdkConfig.ts

@@ -20,13 +20,17 @@ export interface ISsoRedirectOptions {
     on_welcome_page?: boolean; // eslint-disable-line camelcase
 }
 
+/* eslint-disable camelcase */
 export interface ConfigOptions {
     [key: string]: any;
 
+    logout_redirect_url?: string;
+
     // sso_immediate_redirect is deprecated in favour of sso_redirect_options.immediate
-    sso_immediate_redirect?: boolean;  // eslint-disable-line camelcase
-    sso_redirect_options?: ISsoRedirectOptions; // eslint-disable-line camelcase
+    sso_immediate_redirect?: boolean;
+    sso_redirect_options?: ISsoRedirectOptions;
 }
+/* eslint-enable camelcase*/
 
 export const DEFAULTS: ConfigOptions = {
     // Brand name of the app
@@ -56,14 +60,14 @@ export default class SdkConfig {
         SdkConfig.instance = i;
 
         // For debugging purposes
-        (<any>window).mxReactSdkConfig = i;
+        window.mxReactSdkConfig = i;
     }
 
-    static get() {
+    public static get() {
         return SdkConfig.instance || {};
     }
 
-    static put(cfg: ConfigOptions) {
+    public static put(cfg: ConfigOptions) {
         const defaultKeys = Object.keys(DEFAULTS);
         for (let i = 0; i < defaultKeys.length; ++i) {
             if (cfg[defaultKeys[i]] === undefined) {
@@ -73,11 +77,11 @@ export default class SdkConfig {
         SdkConfig.setInstance(cfg);
     }
 
-    static unset() {
+    public static unset() {
         SdkConfig.setInstance({});
     }
 
-    static add(cfg: ConfigOptions) {
+    public static add(cfg: ConfigOptions) {
         const liveConfig = SdkConfig.get();
         const newConfig = Object.assign({}, liveConfig, cfg);
         SdkConfig.put(newConfig);

test/end-to-end-tests/Windows.md

@@ -6,26 +6,31 @@ and start following these steps to get going:
 1. Navigate to your working directory (`cd /mnt/c/users/travisr/whatever/matrix-react-sdk` for example).
 2. Run `sudo apt-get install unzip python3 virtualenv dos2unix`
 3. Run `dos2unix ./test/end-to-end-tests/*.sh ./test/end-to-end-tests/synapse/*.sh ./test/end-to-end-tests/element/*.sh`
-4. Install NodeJS for ubuntu: 
+4. Install NodeJS for ubuntu:
    ```bash
-   curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
+   curl -sL https://deb.nodesource.com/setup_16.x | sudo -E bash -
    sudo apt-get update
    sudo apt-get install nodejs
    ```
-5. Start Element on Windows through `yarn start`
-6. While that builds... Run:
+5. Run `yarn link` and `yarn install` for all layers from WSL if you haven't already. If you want to switch back to
+   your Windows host after your tests then you'll need to re-run `yarn install` (and possibly `yarn link`) there too.
+   Though, do note that you can access `http://localhost:8080` in your Windows-based browser when running webpack in
+   the WSL environment (it does *not* work the other way around, annoyingly).
+6. In WSL, run `yarn start` at the element-web layer to get things going.
+7. While that builds... Run:
    ```bash
    sudo apt-get install x11-apps
    wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
    sudo dpkg -i google-chrome-stable_current_amd64.deb
    sudo apt -f install
    ```
-7. Run: 
+8. Get the IP of your host machine out of WSL: `cat /etc/resolv.conf` - use the nameserver IP.
+9. Run:
    ```bash
    cd ./test/end-to-end-tests
    ./synapse/install.sh
    ./install.sh
-   ./run.sh --app-url http://localhost:8080 --no-sandbox
+   ./run.sh --app-url http://localhost:8080 --log-directory ./logs
    ```
 
 Note that using `yarn test:e2e` probably won't work for you. You might also have to use the config.json from the
@@ -38,3 +43,4 @@ could probably fix this with enough effort, or you could run a headless Chrome i
 Reference material that isn't fully represented in the steps above (but snippets have been borrowed):
 * https://virtualizationreview.com/articles/2017/02/08/graphical-programs-on-windows-subsystem-on-linux.aspx
 * https://gist.github.com/drexler/d70ab957f964dbef1153d46bd853c775
+* https://docs.microsoft.com/en-us/windows/wsl/networking#accessing-windows-networking-apps-from-linux-host-ip

test/end-to-end-tests/src/scenario.ts

@@ -1,5 +1,6 @@
 /*
 Copyright 2018 New Vector Ltd
+Copyright 2022 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.
@@ -26,6 +27,7 @@ import { RestMultiSession } from "./rest/multi";
 import { spacesScenarios } from './scenarios/spaces';
 import { RestSession } from "./rest/session";
 import { stickerScenarios } from './scenarios/sticker';
+import { ssoCustomisationScenarios } from "./scenarios/sso-customisations";
 
 export async function scenario(createSession: (s: string) => Promise<ElementSession>,
     restCreator: RestSessionCreator): Promise<void> {
@@ -50,7 +52,7 @@ export async function scenario(createSession: (s: string) => Promise<ElementSess
     console.log("create REST users:");
     const charlies = await createRestUsers(restCreator);
     await lazyLoadingScenarios(alice, bob, charlies);
-    // do spaces scenarios last as the rest of the tests may get confused by spaces
+    // do spaces scenarios last as the rest of the alice/bob tests may get confused by spaces
     await spacesScenarios(alice, bob);
 
     // we spawn another session for stickers, partially because it involves injecting
@@ -61,6 +63,12 @@ export async function scenario(createSession: (s: string) => Promise<ElementSess
     // closing them as we go rather than leaving them all open until the end).
     const stickerSession = await createSession("sally");
     await stickerScenarios("sally", "ilikestickers", stickerSession, restCreator);
+
+    // we spawn yet another session for SSO stuff because it involves authentication and
+    // logout, which can/does affect other tests dramatically. See notes above regarding
+    // stickers for the performance loss of doing this.
+    const ssoSession = await createUser("enterprise_erin");
+    await ssoCustomisationScenarios(ssoSession);
 }
 
 async function createRestUsers(restCreator: RestSessionCreator): Promise<RestMultiSession> {

test/end-to-end-tests/src/scenarios/sso-customisations.ts

@@ -0,0 +1,49 @@
+/*
+Copyright 2022 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 { ElementSession } from "../session";
+import { logout } from "../usecases/logout";
+import { strict as assert } from "assert";
+import { applyConfigChange } from "../util";
+
+export async function ssoCustomisationScenarios(session: ElementSession): Promise<void> {
+    console.log(" injecting logout customisations for SSO scenarios:");
+
+    await session.delay(1000); // wait for dialogs to close
+    await applyConfigChange(session, {
+        // we redirect to config.json because it's a predictable page that isn't Element
+        // itself. We could use example.org, matrix.org, or something else, however this
+        // puts dependency of external infrastructure on our tests. In the same vein, we
+        // don't really want to figure out how to ship a `test-landing.html` page when
+        // running with an uncontrolled Element (via `./run.sh --app-url http://localhost:8080`).
+        // Using the config.json is just as fine, and we can search for strategic names.
+        'logout_redirect_url': '/config.json',
+    });
+
+    await logoutCanCauseRedirect(session);
+}
+
+async function logoutCanCauseRedirect(session: ElementSession): Promise<void> {
+    await logout(session, false); // we'll check the login page ourselves, so don't assert
+
+    session.log.step("waits for redirect to config.json (as external page)");
+    const foundLoginUrl = await session.poll(async () => {
+        const url = session.page.url();
+        return url === session.url('/config.json');
+    });
+    assert(foundLoginUrl);
+    session.log.done();
+}

test/end-to-end-tests/src/usecases/logout.ts

@@ -0,0 +1,43 @@
+/*
+Copyright 2022 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 { strict as assert } from 'assert';
+
+import { ElementSession } from "../session";
+
+export async function logout(session: ElementSession, assertLoginPage = true): Promise<void> {
+    session.log.startGroup("logs out");
+
+    session.log.step("navigates to user menu");
+    const userButton = await session.query('.mx_UserMenu > div.mx_AccessibleButton');
+    await userButton.click();
+    session.log.done();
+
+    session.log.step("clicks the 'Sign Out' button");
+    const signOutButton = await session.query('.mx_UserMenu_contextMenu .mx_UserMenu_iconSignOut');
+    await signOutButton.click();
+    session.log.done();
+
+    if (assertLoginPage) {
+        const foundLoginUrl = await session.poll(async () => {
+            const url = session.page.url();
+            return url === session.url('/#/login');
+        });
+        assert(foundLoginUrl);
+    }
+
+    session.log.endGroup();
+}

test/end-to-end-tests/src/util.ts

@@ -1,6 +1,6 @@
 /*
 Copyright 2018 New Vector Ltd
-Copyright 2019 The Matrix.org Foundation C.I.C.
+Copyright 2019 - 2022 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.
@@ -40,3 +40,14 @@ export const measureStop = function(session: ElementSession, name: string): Prom
         window.mxPerformanceMonitor.stop(_name);
     }, name);
 };
+
+// TODO: Proper types on `config` - for some reason won't accept an import of ConfigOptions.
+export async function applyConfigChange(session: ElementSession, config: any): Promise<void> {
+    await session.page.evaluate((_config) => {
+        // note: we can't *set* the object because the window version is effectively a pointer.
+        for (const [k, v] of Object.entries(_config)) {
+            // @ts-ignore - for some reason it's not picking up on global.d.ts types.
+            window.mxReactSdkConfig[k] = v;
+        }
+    }, config);
+}