(core) Delete my account button

Summary:
Adding new "Delete my account" button to the profile page that allows users to remove completely
their accounts as long as they don't own any team site.

Test Plan: Added

Reviewers: georgegevoian, paulfitz

Reviewed By: georgegevoian, paulfitz

Subscribers: paulfitz

Differential Revision: https://phab.getgrist.com/D4037

app/client/models/gristUrlState.ts

@@ -87,6 +87,11 @@ export function getLogoutUrl(): string {
   return _getLoginLogoutUrl('logout');
 }
 
+// Get the URL that users are redirect to after deleting their account.
+export function getAccountDeletedUrl(): string {
+  return _getLoginLogoutUrl('account-deleted', {nextUrl: ''});
+}
+
 // Get URL for the signin page.
 export function getLoginOrSignupUrl(options: GetLoginOrSignupUrlOptions = {}): string {
   return _getLoginLogoutUrl('signin', options);
@@ -96,19 +101,21 @@ export function getWelcomeHomeUrl() {
   return _buildUrl('welcome/home').href;
 }
 
+const FINAL_PATHS = ['/signed-out', '/account-deleted'];
+
 // Returns the relative URL (i.e. path) of the current page, except when it's the
-// "/signed-out" page, in which case it returns the home page ("/").
+// "/signed-out" page or "/account-deleted", in which case it returns the home page ("/").
 // This is a good URL to use for a post-login redirect.
 function _getCurrentUrl(): string {
   const {hash, pathname, search} = new URL(window.location.href);
-  if (pathname.endsWith('/signed-out')) { return '/'; }
+  if (FINAL_PATHS.some(final => pathname.endsWith(final))) { return '/'; }
 
   return parseFirstUrlPart('o', pathname).path + search + hash;
 }
 
 // Returns the URL for the given login page.
 function _getLoginLogoutUrl(
-  page: 'login'|'logout'|'signin'|'signup',
+  page: 'login'|'logout'|'signin'|'signup'|'account-deleted',
   options: GetLoginOrSignupUrlOptions = {}
 ): string {
   const {srcDocId, nextUrl = _getCurrentUrl()} = options;

app/client/ui/AccountPage.ts

@@ -1,9 +1,12 @@
+import {detectCurrentLang, makeT} from 'app/client/lib/localization';
 import {AppModel, reportError} from 'app/client/models/AppModel';
 import {urlState} from 'app/client/models/gristUrlState';
 import * as css from 'app/client/ui/AccountPageCss';
 import {ApiKey} from 'app/client/ui/ApiKey';
 import {AppHeader} from 'app/client/ui/AppHeader';
 import {buildChangePasswordDialog} from 'app/client/ui/ChangePasswordDialog';
+import {DeleteAccountDialog} from 'app/client/ui/DeleteAccountDialog';
+import {translateLocale} from 'app/client/ui/LanguageMenu';
 import {leftPanelBasic} from 'app/client/ui/LeftPanelCommon';
 import {MFAConfig} from 'app/client/ui/MFAConfig';
 import {pagePanels} from 'app/client/ui/PagePanels';
@@ -14,11 +17,9 @@ import {cssBreadcrumbs, separator} from 'app/client/ui2018/breadcrumbs';
 import {labeledSquareCheckbox} from 'app/client/ui2018/checkbox';
 import {cssLink} from 'app/client/ui2018/links';
 import {select} from 'app/client/ui2018/menus';
+import {getPageTitleSuffix} from 'app/common/gristUrls';
 import {getGristConfig} from 'app/common/urlUtils';
 import {FullUser} from 'app/common/UserAPI';
-import {detectCurrentLang, makeT} from 'app/client/lib/localization';
-import {translateLocale} from 'app/client/ui/LanguageMenu';
-import {getPageTitleSuffix} from 'app/common/gristUrls';
 import {Computed, Disposable, dom, domComputed, makeTestId, Observable, styled, subscribe} from 'grainjs';
 
 const testId = makeTestId('test-account-page-');
@@ -161,7 +162,10 @@ designed to ensure that you're the only person who can access your account, even
             inputArgs: [{size: '5'}], // Lower size so that input can shrink below ~152px.
           })
         )),
-      ),
+        !getGristConfig().canCloseAccount ? null : [
+            dom.create(DeleteAccountDialog, user),
+        ],
+),
       testId('body'),
     )));
   }

app/client/ui/errorPages.ts

@@ -1,6 +1,6 @@
 import {makeT} from 'app/client/lib/localization';
 import {AppModel} from 'app/client/models/AppModel';
-import {getLoginUrl, getMainOrgUrl, urlState} from 'app/client/models/gristUrlState';
+import {getLoginUrl, getMainOrgUrl, getSignupUrl, urlState} from 'app/client/models/gristUrlState';
 import {AppHeader} from 'app/client/ui/AppHeader';
 import {leftPanelBasic} from 'app/client/ui/LeftPanelCommon';
 import {pagePanels} from 'app/client/ui/PagePanels';
@@ -21,7 +21,8 @@ export function createErrPage(appModel: AppModel) {
   return gristConfig.errPage === 'signed-out' ? createSignedOutPage(appModel) :
     gristConfig.errPage === 'not-found' ? createNotFoundPage(appModel, message) :
     gristConfig.errPage === 'access-denied' ? createForbiddenPage(appModel, message) :
-    createOtherErrorPage(appModel, message);
+    gristConfig.errPage === 'account-deleted' ? createAccountDeletedPage(appModel) :
+        createOtherErrorPage(appModel, message);
 }
 
 /**
@@ -67,6 +68,20 @@ export function createSignedOutPage(appModel: AppModel) {
   ]);
 }
 
+/**
+ * Creates a page that shows the user is logged out.
+ */
+export function createAccountDeletedPage(appModel: AppModel) {
+  document.title = t("Account deleted{{suffix}}", {suffix: getPageTitleSuffix(getGristConfig())});
+
+  return pagePanelsError(appModel, t("Account deleted{{suffix}}", {suffix: ''}), [
+    cssErrorText(t("Your account has been deleted.")),
+    cssButtonWrap(bigPrimaryButtonLink(
+      t("Sign up"), {href: getSignupUrl()}, testId('error-signin')
+    ))
+  ]);
+}
+
 /**
  * Creates a "Page not found" page.
  */

app/client/ui2018/cssVars.ts

@@ -168,6 +168,7 @@ export const theme = {
   lightText: new CustomProp('theme-text-light', undefined, colors.slate),
   darkText: new CustomProp('theme-text-dark', undefined, 'black'),
   errorText: new CustomProp('theme-text-error', undefined, colors.error),
+  errorTextHover: new CustomProp('theme-text-error-hover', undefined, '#BF0A31'),
   dangerText: new CustomProp('theme-text-danger', undefined, '#FFA500'),
   disabledText: new CustomProp('theme-text-disabled', undefined, colors.slate),
 

app/client/ui2018/modals.ts

@@ -341,6 +341,8 @@ export interface ConfirmModalOptions {
   hideCancel?: boolean;
   extraButtons?: DomContents;
   modalOptions?: IModalOptions;
+  saveDisabled?: Observable<boolean>;
+  width?: ModalWidth;
 }
 
 /**
@@ -352,7 +354,7 @@ export function confirmModal(
   title: DomElementArg,
   btnText: DomElementArg,
   onConfirm: () => Promise<void>,
-  {explanation, hideCancel, extraButtons, modalOptions}: ConfirmModalOptions = {},
+  {explanation, hideCancel, extraButtons, modalOptions, saveDisabled, width}: ConfirmModalOptions = {},
 ): void {
   return saveModal((ctl, owner): ISaveModalOptions => ({
     title,
@@ -360,8 +362,9 @@ export function confirmModal(
     saveLabel: btnText,
     saveFunc: onConfirm,
     hideCancel,
-    width: 'normal',
+    width: width ?? 'normal',
     extraButtons,
+    saveDisabled,
   }), modalOptions);
 }
 

app/common/ThemePrefs-ti.ts

@@ -29,6 +29,7 @@ export const ThemeColors = t.iface([], {
   "text-light": "string",
   "text-dark": "string",
   "text-error": "string",
+  "text-error-hover": "string",
   "text-danger": "string",
   "text-disabled": "string",
   "page-bg": "string",

app/common/ThemePrefs.ts

@@ -27,6 +27,7 @@ export interface ThemeColors {
   'text-light': string;
   'text-dark': string;
   'text-error': string;
+  'text-error-hover': string;
   'text-danger': string;
   'text-disabled': string;
 

app/common/UserAPI.ts

@@ -405,6 +405,20 @@ export interface UserAPI {
   getBaseUrl(): string;  // Get the prefix for all the endpoints this object wraps.
   forRemoved(): UserAPI; // Get a version of the API that works on removed resources.
   getWidgets(): Promise<ICustomWidget[]>;
+  /**
+   * Deletes account and personal org with all documents. Note: deleteUser doesn't clear documents, and this method
+   * is specific to Grist installation, and might not be supported. Pass current user's id so that we can verify
+   * that the user is deleting their own account. This is just to prevent accidental deletion from multiple tabs.
+   *
+   * @returns true if the account was deleted, false if there was a mismatch with the current user's id, and the
+   * account was probably already deleted.
+   */
+  closeAccount(userId: number): Promise<boolean>;
+  /**
+   * Deletes current non personal org with all documents. Note: deleteOrg doesn't clear documents, and this method
+   * is specific to Grist installation, and might not be supported.
+   */
+  closeOrg(): Promise<void>;
 }
 
 /**
@@ -813,6 +827,14 @@ export class UserAPIImpl extends BaseAPI implements UserAPI {
                         body: JSON.stringify({name})});
   }
 
+  public async closeAccount(userId: number): Promise<boolean> {
+    return await this.requestJson(`${this._url}/api/doom/account?userid=` + userId, {method: 'DELETE'});
+  }
+
+  public async closeOrg() {
+    await this.request(`${this._url}/api/doom/org`, {method: 'DELETE'});
+  }
+
   public getBaseUrl(): string { return this._url; }
 
   // Recomputes the URL on every call to pick up changes in the URL when switching orgs.
@@ -1047,7 +1069,7 @@ export class DocAPIImpl extends BaseAPI implements DocAPI {
 
   public async uploadAttachment(value: string | Blob, filename?: string): Promise<number> {
     const formData = this.newFormData();
-    formData.append('upload', value, filename);
+    formData.append('upload', value as Blob, filename);
     const response = await this.requestAxios(`${this._url}/attachments`, {
       method: 'POST',
       data: formData,

app/common/gristUrls.ts

@@ -694,6 +694,9 @@ export interface GristLoadConfig {
 
   // The org containing public templates and tutorials.
   templateOrg?: string|null;
+
+  // Whether to show the "Delete Account" button in the account page.
+  canCloseAccount?: boolean;
 }
 
 export const Features = StringUnion(

app/common/themes/GristDark.ts

@@ -5,7 +5,8 @@ export const GristDark: ThemeColors = {
   'text': '#EFEFEF',
   'text-light': '#A4A4B1',
   'text-dark': '#FFFFFF',
-  'text-error': '#FF6666',
+  'text-error': '#E63946',
+  'text-error-hover': '#FF5C5C',
   'text-danger': '#FFA500',
   'text-disabled': '#A4A4B1',
 

app/common/themes/GristLight.ts

@@ -6,6 +6,7 @@ export const GristLight: ThemeColors = {
   'text-light': '#929299',
   'text-dark': 'black',
   'text-error': '#D0021B',
+  'text-error-hover': '#A10000',
   'text-danger': '#FFA500',
   'text-disabled': '#929299',
 

app/gen-server/ApiServer.ts

@@ -177,7 +177,7 @@ export class ApiServer {
       return sendReply(req, res, query);
     }));
 
-    // // DELETE /api/orgs/:oid
+    // DELETE /api/orgs/:oid
     // Delete the specified org and all included workspaces and docs.
     this._app.delete('/api/orgs/:oid', expressWrap(async (req, res) => {
       const org = getOrgKey(req);

app/gen-server/lib/HomeDBManager.ts

@@ -837,7 +837,7 @@ export class HomeDBManager extends EventEmitter {
     }
     await this._connection.transaction(async manager => {
       const user = await manager.findOne(User, {where: {id: userIdToDelete},
-                                                relations: ["logins", "personalOrg"]});
+                                                relations: ["logins", "personalOrg", "prefs"]});
       if (!user) { throw new ApiError('user not found', 404); }
       if (name) {
         if (user.name !== name) {
@@ -853,6 +853,7 @@ export class HomeDBManager extends EventEmitter {
         .from('group_users')
         .where('user_id = :userId', {userId: userIdToDelete})
         .execute();
+
       await manager.delete(User, userIdToDelete);
     });
     return {

app/server/lib/FlexServer.ts

@@ -5,7 +5,7 @@ import {encodeUrl, getSlugIfNeeded, GristDeploymentType, GristDeploymentTypes,
         GristLoadConfig, IGristUrlState, isOrgInPathOnly, parseSubdomain,
         sanitizePathTail} from 'app/common/gristUrls';
 import {getOrgUrlInfo} from 'app/common/gristUrls';
-import {safeJsonParse} from 'app/common/gutil';
+import {isAffirmative, safeJsonParse} from 'app/common/gutil';
 import {InstallProperties} from 'app/common/InstallAPI';
 import {UserProfile} from 'app/common/LoginSessionAPI';
 import {tbind} from 'app/common/tbind';
@@ -17,6 +17,7 @@ import {Workspace} from 'app/gen-server/entity/Workspace';
 import {Activations} from 'app/gen-server/lib/Activations';
 import {DocApiForwarder} from 'app/gen-server/lib/DocApiForwarder';
 import {getDocWorkerMap} from 'app/gen-server/lib/DocWorkerMap';
+import {Doom} from 'app/gen-server/lib/Doom';
 import {HomeDBManager} from 'app/gen-server/lib/HomeDBManager';
 import {Housekeeper} from 'app/gen-server/lib/Housekeeper';
 import {Usage} from 'app/gen-server/lib/Usage';
@@ -52,7 +53,7 @@ import {getAppPathTo, getAppRoot, getUnpackedAppRoot} from 'app/server/lib/place
 import {addPluginEndpoints, limitToPlugins} from 'app/server/lib/PluginEndpoint';
 import {PluginManager} from 'app/server/lib/PluginManager';
 import * as ProcessMonitor from 'app/server/lib/ProcessMonitor';
-import {adaptServerUrl, getOrgUrl, getOriginUrl, getScope, isDefaultUser, optStringParam,
+import {adaptServerUrl, getOrgUrl, getOriginUrl, getScope, integerParam, isDefaultUser, optStringParam,
         RequestWithGristInfo, sendOkReply, stringArrayParam, stringParam, TEST_HTTPS_OFFSET,
         trustOrigin} from 'app/server/lib/requestUtils';
 import {ISendAppPageOptions, makeGristConfig, makeMessagePage, makeSendAppPage} from 'app/server/lib/sendAppPage';
@@ -971,8 +972,7 @@ export class FlexServer implements GristServer {
 
     // TODO: We could include a third mock provider of login/logout URLs for better tests. Or we
     // could create a mock SAML identity provider for testing this using the SAML flow.
-    const loginSystem = await (process.env.GRIST_TEST_LOGIN ? getTestLoginSystem() :
+    const loginSystem = await this.resolveLoginSystem();
-      (this._getLoginSystem?.() || getLoginSystem()));
     this._loginMiddleware = await loginSystem.getMiddleware(this);
     this._getLoginRedirectUrl = tbind(this._loginMiddleware.getLoginRedirectUrl, this._loginMiddleware);
     this._getSignUpRedirectUrl = tbind(this._loginMiddleware.getSignUpRedirectUrl, this._loginMiddleware);
@@ -1082,22 +1082,9 @@ export class FlexServer implements GristServer {
       }));
     }
 
-    const logoutMiddleware = this._loginMiddleware.getLogoutMiddleware ?
+    this.app.get('/logout', ...this._logoutMiddleware(), expressWrap(async (req, resp) => {
-      this._loginMiddleware.getLogoutMiddleware() :
-      [];
-    this.app.get('/logout', ...logoutMiddleware, expressWrap(async (req, resp) => {
-      const scopedSession = this._sessions.getOrCreateSessionFromRequest(req);
       const signedOutUrl = new URL(getOrgUrl(req) + 'signed-out');
       const redirectUrl = await this._getLogoutRedirectUrl(req, signedOutUrl);
-
-      // Clear session so that user needs to log in again at the next request.
-      // SAML logout in theory uses userSession, so clear it AFTER we compute the URL.
-      // Express-session will save these changes.
-      const expressSession = (req as RequestWithLogin).session;
-      if (expressSession) { expressSession.users = []; expressSession.orgToUser = {}; }
-      await scopedSession.clearScopedSession(req);
-      // TODO: limit cache clearing to specific user.
-      this._sessions.clearCacheIfNeeded();
       resp.redirect(redirectUrl);
     }));
 
@@ -1220,6 +1207,81 @@ export class FlexServer implements GristServer {
     this.app.get('/account', ...middleware, expressWrap(async (req, resp) => {
       return this._sendAppPage(req, resp, {path: 'app.html', status: 200, config: {}});
     }));
+
+    const createDoom = async (req: express.Request) => {
+      const dbManager = this.getHomeDBManager();
+      const permitStore = this.getPermitStore();
+      const notifier = this.getNotifier();
+      const loginSystem = await this.resolveLoginSystem();
+      const homeUrl = this.getHomeUrl(req).replace(/\/$/, '');
+      return new Doom(dbManager, permitStore, notifier, loginSystem, homeUrl);
+    };
+
+    if (isAffirmative(process.env.GRIST_ACCOUNT_CLOSE)) {
+      this.app.delete('/api/doom/account', expressWrap(async (req, resp) => {
+        // Make sure we have a valid user authenticated user here.
+        const userId = getUserId(req);
+
+        // Make sure we are deleting the correct user account (and not the anonymous user)
+        const requestedUser = integerParam(req.query.userid, 'userid');
+        if (requestedUser !== userId || isAnonymousUser(req))  {
+          // This probably shouldn't happen, but if user has already deleted the account and tries to do it
+          // once again in a second tab, we might end up here. In that case we are returning false to indicate
+          // that account wasn't deleted.
+          return resp.status(200).json(false);
+        }
+
+        // We are a valid user, we can proceed with the deletion. Note that we will
+        // delete user as an admin, as we need to remove other resources that user
+        // might not have access to.
+
+        // First make sure user is not a member of any team site. We don't know yet
+        // what to do with orphaned documents.
+        const result = await this._dbManager.getOrgs(userId, null);
+        this._dbManager.checkQueryResult(result);
+        const orgs = this._dbManager.unwrapQueryResult(result);
+        if (orgs.some(org => !org.ownerId)) {
+          throw new ApiError("Cannot delete account with team sites", 400);
+        }
+
+        // Reuse Doom cli tool for account deletion.
+        const doom = await createDoom(req);
+        await doom.deleteUser(userId);
+        return resp.status(200).json(true);
+      }));
+
+      this.app.get('/account-deleted', ...this._logoutMiddleware(), expressWrap((req, resp) => {
+        return this._sendAppPage(req, resp, {path: 'error.html', status: 200, config: {errPage: 'account-deleted'}});
+      }));
+
+      this.app.delete('/api/doom/org', expressWrap(async (req, resp) => {
+        const mreq = req as RequestWithLogin;
+        const orgDomain = getOrgFromRequest(req);
+        if (!orgDomain) { throw new ApiError("Cannot determine organization", 400); }
+
+        if (this._dbManager.isMergedOrg(orgDomain)) {
+          throw new ApiError("Cannot delete a personal site", 400);
+        }
+
+        // Get org from the server.
+        const query = await this._dbManager.getOrg(getScope(mreq), orgDomain);
+        const org = this._dbManager.unwrapQueryResult(query);
+
+        if (!org || org.ownerId) {
+          // This shouldn't happen, but just in case test it.
+          throw new ApiError("Cannot delete an org with an owner", 400);
+        }
+
+        if (!org.billingAccount.isManager) {
+          throw new ApiError("Only billing manager can delete a team site", 403);
+        }
+
+        // Reuse Doom cli tool for org deletion. Note, this removes everything as a super user.
+        const doom = await createDoom(req);
+        await doom.deleteOrg(org.id);
+        return resp.status(200).send();
+      }));
+    }
   }
 
   public addBillingPages() {
@@ -1557,6 +1619,10 @@ export class FlexServer implements GristServer {
     }
   }
 
+  public resolveLoginSystem() {
+    return process.env.GRIST_TEST_LOGIN ? getTestLoginSystem() : (this._getLoginSystem?.() || getLoginSystem());
+  }
+
   // Adds endpoints that support imports and exports.
   private _addSupportPaths(docAccessMiddleware: express.RequestHandler[]) {
     if (!this._docWorker) { throw new Error("need DocWorker"); }
@@ -2001,6 +2067,29 @@ export class FlexServer implements GristServer {
     });
     return await response.json();
   }
+
+  /**
+   * Creates set of middleware for handling logout requests and clears session. Used in any endpoint
+   * or a page that needs to log out the user and clear the session.
+   */
+  private _logoutMiddleware() {
+    const sessionClearMiddleware = expressWrap(async (req, resp, next) => {
+      const scopedSession = this._sessions.getOrCreateSessionFromRequest(req);
+      // Clear session so that user needs to log in again at the next request.
+      // SAML logout in theory uses userSession, so clear it AFTER we compute the URL.
+      // Express-session will save these changes.
+      const expressSession = (req as RequestWithLogin).session;
+      if (expressSession) { expressSession.users = []; expressSession.orgToUser = {}; }
+      await scopedSession.clearScopedSession(req);
+      // TODO: limit cache clearing to specific user.
+      this._sessions.clearCacheIfNeeded();
+      next();
+    });
+    const pluggedMiddleware = this._loginMiddleware.getLogoutMiddleware ?
+      this._loginMiddleware.getLogoutMiddleware() :
+      [];
+    return [...pluggedMiddleware, sessionClearMiddleware];
+  }
 }
 
 /**

app/server/lib/GristServer.ts

@@ -52,6 +52,7 @@ export interface GristServer {
   getTag(): string;
   sendAppPage(req: express.Request, resp: express.Response, options: ISendAppPageOptions): Promise<void>;
   getAccessTokens(): IAccessTokens;
+  resolveLoginSystem(): Promise<GristLoginSystem>;
 }
 
 export interface GristLoginSystem {
@@ -133,6 +134,7 @@ export function createDummyGristServer(): GristServer {
     getTag() { return 'tag'; },
     sendAppPage() { return Promise.resolve(); },
     getAccessTokens() { throw new Error('no access tokens'); },
+    resolveLoginSystem() { throw new Error('no login system'); },
   };
 }
 

app/server/lib/ICreate.ts

@@ -96,7 +96,7 @@ export function makeSimpleCreator(opts: {
     Notifier(dbManager, gristConfig) {
       return notifier?.create(dbManager, gristConfig) ?? {
         get testPending() { return false; },
-        deleteUser()      { throw new Error('deleteUser unavailable'); },
+        async deleteUser()      { /* do nothing */ },
       };
     },
     ExternalStorage(purpose, extraPrefix) {

app/server/lib/sendAppPage.ts

@@ -84,6 +84,7 @@ export function makeGristConfig(options: MakeGristConfigOptons): GristLoadConfig
     telemetry: server?.getTelemetry().getTelemetryConfig(),
     deploymentType: server?.getDeploymentType(),
     templateOrg: getTemplateOrg(),
+    canCloseAccount: isAffirmative(process.env.GRIST_ACCOUNT_CLOSE),
     ...extra,
   };
 }

stubs/app/client/ui/DeleteAccountDialog.ts

@@ -0,0 +1,11 @@
+import {FullUser} from 'app/common/UserAPI';
+import {Disposable} from 'grainjs';
+
+export class DeleteAccountDialog extends Disposable {
+  constructor(appModel: FullUser) {
+    super();
+  }
+  public buildDom() {
+    return null;
+  }
+}

test/nbrowser/gristUtils.ts

@@ -953,6 +953,14 @@ export async function sendActions(actions: UserAction[]) {
   await waitForServer();
 }
 
+export async function getDocId() {
+  const docId = await driver.wait(() => driver.executeScript(`
+    return window.gristDocPageModel.currentDocId.get()
+  `)) as string;
+  if (!docId) { throw new Error('could not find doc'); }
+  return docId;
+}
+
 /**
  * Confirms dialog for removing rows. In the future, can be used for other dialogs.
  */