feat: Add Parse Server option resetPasswordSuccessOnInvalidEmail to choose success or error response on password reset with invalid email

spec/ValidationAndPasswordsReset.spec.js

@@ -1082,4 +1082,43 @@ describe('Custom Pages, Email Verification, Password Reset', () => {
         done();
       });
   });
+
+  it('should throw on an invalid reset password', async () => {
+    await reconfigureServer({
+      appName: 'coolapp',
+      publicServerURL: 'http://localhost:1337/1',
+      emailAdapter: MockEmailAdapterWithOptions({
+        fromAddress: 'parse@example.com',
+        apiKey: 'k',
+        domain: 'd',
+      }),
+      passwordPolicy: {
+        resetPasswordSuccessOnInvalidEmail: false,
+      },
+    });
+
+    await expectAsync(Parse.User.requestPasswordReset('test@example.com')).toBeRejectedWith(
+      new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'A user with that email does not exist.')
+    );
+  });
+
+  it('validate resetPasswordSuccessonInvalidEmail', async () => {
+    const invalidValues = [[], {}, 1, 'string'];
+    for (const value of invalidValues) {
+      await expectAsync(
+        reconfigureServer({
+          appName: 'coolapp',
+          publicServerURL: 'http://localhost:1337/1',
+          emailAdapter: MockEmailAdapterWithOptions({
+            fromAddress: 'parse@example.com',
+            apiKey: 'k',
+            domain: 'd',
+          }),
+          passwordPolicy: {
+            resetPasswordSuccessOnInvalidEmail: value,
+          },
+        })
+      ).toBeRejectedWith('resetPasswordSuccessOnInvalidEmail must be a boolean value');
+    }
+  });
 });

src/Config.js

@@ -376,6 +376,13 @@ export class Config {
       if (passwordPolicy.resetTokenReuseIfValid && !passwordPolicy.resetTokenValidityDuration) {
         throw 'You cannot use resetTokenReuseIfValid without resetTokenValidityDuration';
       }
+
+      if (
+        passwordPolicy.resetPasswordSuccessOnInvalidEmail &&
+        typeof passwordPolicy.resetPasswordSuccessOnInvalidEmail !== 'boolean'
+      ) {
+        throw 'resetPasswordSuccessOnInvalidEmail must be a boolean value';
+      }
     }
   }
 

src/Options/Definitions.js

@@ -907,6 +907,13 @@ module.exports.PasswordPolicyOptions = {
       'Set the number of previous password that will not be allowed to be set as new password. If the option is not set or set to `0`, no previous passwords will be considered.<br><br>Valid values are >= `0` and <= `20`.<br>Default is `0`.',
     action: parsers.numberParser('maxPasswordHistory'),
   },
+  resetPasswordSuccessOnInvalidEmail: {
+    env: 'PARSE_SERVER_PASSWORD_POLICY_RESET_PASSWORD_SUCCESS_ON_INVALID_EMAIL',
+    help:
+      'Set to true if password resets should return success if the email is invalid<br><br>Default is `true`.',
+    action: parsers.booleanParser,
+    default: true,
+  },
   resetTokenReuseIfValid: {
     env: 'PARSE_SERVER_PASSWORD_POLICY_RESET_TOKEN_REUSE_IF_VALID',
     help:

src/Options/index.js

@@ -525,6 +525,11 @@ export interface PasswordPolicyOptions {
   Default is `false`.
   :DEFAULT: false */
   resetTokenReuseIfValid: ?boolean;
+  /* Set to `true` if a request to reset the password should return a success response even if the provided email address is invalid, or `false` if the request should return an error response if the email address is invalid.
+  <br><br>
+  Default is `true`.
+  :DEFAULT: true */
+  resetPasswordSuccessOnInvalidEmail: ?boolean;
 }
 
 export interface FileUploadOptions {

src/Routers/UsersRouter.js

@@ -414,7 +414,7 @@ export class UsersRouter extends ClassesRouter {
     }
   }
 
-  handleResetRequest(req) {
+  async handleResetRequest(req) {
     this._throwOnBadEmailConfig(req);
 
     const { email } = req.body;
@@ -428,24 +428,22 @@ export class UsersRouter extends ClassesRouter {
       );
     }
     const userController = req.config.userController;
-    return userController.sendPasswordResetEmail(email).then(
-      () => {
-        return Promise.resolve({
-          response: {},
-        });
-      },
-      err => {
-        if (err.code === Parse.Error.OBJECT_NOT_FOUND) {
-          // Return success so that this endpoint can't
-          // be used to enumerate valid emails
-          return Promise.resolve({
+    try {
+      await userController.sendPasswordResetEmail(email);
+      return {
+        response: {},
+      };
+    } catch (err) {
+      if (err.code === Parse.Error.OBJECT_NOT_FOUND) {
+        if (req.config.passwordPolicy?.resetPasswordSuccessOnInvalidEmail ?? true) {
+          return {
             response: {},
-          });
-        } else {
-          throw err;
+          };
         }
+        err.message = `A user with that email does not exist.`;
       }
-    );
+      throw err;
+    }
   }
 
   handleVerificationEmailRequest(req) {