[ui] When your token expires and you sign in again, redirect to your original route.

.changelog/24374.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+ui: When your token expires, upon signing back in, redirect to your original route
+```

ui/app/components/forbidden-message.js

@@ -11,6 +11,7 @@ import { inject as service } from '@ember/service';
 export default class ForbiddenMessage extends Component {
   @service token;
   @service store;
+  @service router;
 
   get authMethods() {
     return this.store.findAll('auth-method');

ui/app/controllers/application.js

@@ -22,6 +22,7 @@ export default class ApplicationController extends Controller {
   @service system;
   @service token;
   @service notifications;
+  @service router;
 
   /**
    * @type {KeyboardService}

ui/app/controllers/settings/tokens.js

@@ -24,6 +24,7 @@ export default class Tokens extends Controller {
   @service store;
   @service router;
   @service system;
+  @service notifications;
   queryParams = ['code', 'state', 'jwtAuthMethod'];
 
   @tracked secret = this.token.secret;
@@ -145,6 +146,7 @@ export default class Tokens extends Controller {
           this.token.get('fetchSelfTokenAndPolicies').perform().catch();
 
           this.signInStatus = 'success';
+          this.optionallyRedirectPathAfterSignIn();
         },
         () => {
           this.token.set('secret', undefined);
@@ -174,6 +176,7 @@ export default class Tokens extends Controller {
 
           this.signInStatus = 'success';
           this.token.set('tokenNotFound', false);
+          this.optionallyRedirectPathAfterSignIn();
         },
         () => {
           this.token.set('secret', undefined);
@@ -183,6 +186,26 @@ export default class Tokens extends Controller {
     }
   }
 
+  /**
+   * If the user was redirected to the login page because their token expired,
+   * redirect them back to the page they were on.
+   */
+  optionallyRedirectPathAfterSignIn() {
+    if (this.token.postExpiryPath) {
+      this.router.transitionTo(this.token.postExpiryPath);
+      this.token.postExpiryPath = null;
+
+      // Because they won't be on the page to see "Successfully signed in", use a toast.
+      this.notifications.add({
+        title: 'Successfully signed in',
+        message:
+          'You were redirected back to the page you were on before you were signed out.',
+        color: 'success',
+        timeout: 10000,
+      });
+    }
+  }
+
   // Generate a 20-char nonce, using window.crypto to
   // create a sufficiently-large output then trimming
   generateNonce() {
@@ -270,6 +293,7 @@ export default class Tokens extends Controller {
 
       this.signInStatus = 'success';
       this.token.set('tokenNotFound', false);
+      this.optionallyRedirectPathAfterSignIn();
     } else {
       this.state = 'failure';
       this.code = null;

ui/app/routes/application.js

@@ -153,6 +153,7 @@ export default class ApplicationRoute extends Route {
             e.detail === 'ACL token not found'
         )
       ) {
+        this.token.postExpiryPath = this.router.currentURL;
         this.router.transitionTo('settings.tokens');
       } else {
         this.controllerFor('application').set('error', error);

ui/app/services/token.js

@@ -196,6 +196,8 @@ export default class TokenService extends Service {
               title: 'Your access has expired',
               message: `Your token will need to be re-authenticated`,
             });
+            const currentPath = this.router.currentURL;
+            this.postExpiryPath = currentPath;
           }
           this.monitorTokenTime.cancelAll(); // Stop updating time left after expiration
         }

ui/app/templates/application.hbs

@@ -20,7 +20,7 @@
         queue
           (action close)
           (action (optional flash.customCloseAction))
-        
+
       }}
     as |T|>
       {{#if flash.title}}
@@ -80,12 +80,12 @@
         <h1 data-test-error-title class="title is-spaced">Not Authorized</h1>
         {{#if this.token.secret}}
           <p data-test-error-message class="subtitle">Your
-            <LinkTo @route="settings.tokens" data-test-error-acl-link>ACL token</LinkTo>
+            <LinkTo @route="settings.tokens" data-test-error-acl-link {{on "click" (action (mut this.token.postExpiryPath) this.router.currentURL)}}>ACL token</LinkTo>
             does not provide the required permissions. Contact your
             administrator if this is an error.</p>
         {{else}}
           <p data-test-error-message class="subtitle">Provide an
-            <LinkTo @route="settings.tokens" data-test-error-acl-link>ACL token</LinkTo>
+            <LinkTo @route="settings.tokens" data-test-error-acl-link {{on "click" (action (mut this.token.postExpiryPath) this.router.currentURL)}}>ACL token</LinkTo>
             with requisite permissions to view this.</p>
         {{/if}}
       {{else}}
@@ -108,6 +108,7 @@
         @route="settings.tokens"
         data-test-error-signin-link
         class="button is-white"
+        {{on "click" (action (mut this.token.postExpiryPath) this.router.currentURL)}}
       >Go to Sign In</LinkTo>
     </div>
   </div>

ui/app/templates/components/forbidden-message.hbs

@@ -13,12 +13,12 @@
       {{else}}
         required
       {{/if}}
-      <LinkTo @route="settings.tokens">permission</LinkTo> for this resource.<br /> Contact your administrator if this is an error.
+      <LinkTo data-test-permission-link @route="settings.tokens" {{on "click" (action (mut this.token.postExpiryPath) this.router.currentURL)}}>permission</LinkTo> for this resource.<br /> Contact your administrator if this is an error.
     {{else}}
       {{#if this.authMethods}}
         Sign in with
         {{#each this.authMethods as |authMethod|}}
-          <LinkTo @route="settings.tokens">{{authMethod.name}}</LinkTo>, 
+          <LinkTo @route="settings.tokens">{{authMethod.name}}</LinkTo>,
         {{/each}}
         or
       {{/if}}

ui/tests/acceptance/token-test.js

@@ -36,6 +36,8 @@ let job;
 let node;
 let managementToken;
 let clientToken;
+let recentlyExpiredToken;
+let soonExpiringToken;
 
 module('Acceptance | tokens', function (hooks) {
   setupApplicationTest(hooks);
@@ -53,6 +55,12 @@ module('Acceptance | tokens', function (hooks) {
     job = server.create('job');
     managementToken = server.create('token');
     clientToken = server.create('token');
+    recentlyExpiredToken = server.create('token', {
+      expirationTime: moment().add(-5, 'm').toDate(),
+    });
+    soonExpiringToken = server.create('token', {
+      expirationTime: moment().add(1, 's').toDate(),
+    });
   });
 
   test('it passes an accessibility audit', async function (assert) {
@@ -757,6 +765,109 @@ module('Acceptance | tokens', function (hooks) {
     window.localStorage.nomadTokenSecret = null;
   });
 
+  // Note: this differs from the 500-throwing errors above.
+  // In Nomad 1.5, errors for expired tokens moved from 500 "ACL token expired" to 403 "Permission Denied"
+  // In practice, the UI handles this differently: 403s can be either ACL-policy-denial or token-expired-denial related.
+  // As such, instead of an automatic redirect to the tokens page, like we did for a 500, we prompt the user with in-app
+  // error messages but otherwise keep them on their route, with actions to re-authenticate.
+  test('When a token expires with permission denial, the user is prompted to redirect to the token page (jobs page)', async function (assert) {
+    assert.expect(4);
+    window.localStorage.clear();
+
+    window.localStorage.nomadTokenSecret = recentlyExpiredToken.secretId; // simulate refreshing the page with an expired token
+    server.pretender.get('/v1/jobs/statuses', function () {
+      return [403, {}, 'Permission Denied'];
+    });
+
+    await visit('/jobs');
+
+    assert
+      .dom('[data-test-error]')
+      .exists('Error message is shown on the Jobs page');
+    await click('[data-test-permission-link]');
+    assert.equal(
+      currentURL(),
+      '/settings/tokens',
+      'Redirected to the tokens page'
+    );
+
+    server.pretender.get('/v1/jobs/statuses', function () {
+      return [200, {}, null];
+    });
+    await Tokens.visit();
+
+    await Tokens.secret(recentlyExpiredToken.secretId).submit();
+    assert.equal(currentURL(), '/jobs');
+
+    assert.dom('.flash-message.alert-success').exists();
+  });
+
+  // Evaluations page (and others) fall back to application.hbs handling of error messages
+  test('When a token expires with permission denial, the user is prompted to redirect to the token page (evaluations page)', async function (assert) {
+    window.localStorage.clear();
+    window.localStorage.nomadTokenSecret = recentlyExpiredToken.secretId; // simulate refreshing the page with an expired token
+    server.pretender.get('/v1/evaluations', function () {
+      return [403, {}, 'Permission Denied'];
+    });
+
+    await visit('/evaluations');
+
+    assert
+      .dom('[data-test-error]')
+      .exists('Error message is shown on the Evaluations page');
+    await click('[data-test-error-acl-link]');
+    assert.equal(
+      currentURL(),
+      '/settings/tokens',
+      'Redirected to the tokens page'
+    );
+
+    server.pretender.get('/v1/evaluations', function () {
+      return [200, {}, JSON.stringify([])];
+    });
+
+    await Tokens.secret(managementToken.secretId).submit();
+
+    assert.equal(currentURL(), '/evaluations');
+
+    assert.dom('.flash-message.alert-success').exists();
+  });
+
+  module('Token Expiry and redirect', function (hooks) {
+    hooks.beforeEach(function () {
+      window.localStorage.nomadTokenSecret = soonExpiringToken.secretId;
+    });
+
+    test('When a token expires while the user is on a page, the notification saves redirect route', async function (assert) {
+      // window.localStorage.nomadTokenSecret = soonExpiringToken.secretId;
+      await Jobs.visit();
+      assert.equal(currentURL(), '/jobs');
+
+      assert
+        .dom('.flash-message.alert-warning button')
+        .exists('A global alert exists and has a clickable button');
+
+      await click('.flash-message.alert-warning button');
+
+      assert.equal(
+        currentURL(),
+        '/settings/tokens',
+        'Redirected to tokens page on notification action'
+      );
+
+      assert
+        .dom('[data-test-token-expired]')
+        .exists('Notification is rendered');
+
+      await Tokens.secret(managementToken.secretId).submit();
+      assert.equal(
+        currentURL(),
+        '/jobs',
+        'Redirected to initial route on manager sign in'
+      );
+    });
+  });
+
   function getHeader({ requestHeaders }, name) {
     // Headers are case-insensitive, but object property look up is not
     return (