Allow configuration of a minimum password length, unify password reset

interfaces

Summary:
  - We have a hard-coded minimum length of 3 right now (and 1 in the other
interface), which is sort of silly.
  - Provide a more reasonable default, and allow it to be configured.
  - We have two password reset interfaces, one of which no longer actually
requires you to verify you own the account. This is more than a bit derp.
  - Merge the interfaces into one, using either an email token or the account's
current password to let you change the password.

Test Plan:
  - Reset password on an account.
  - Changed password on an account.
  - Created a new account, logged in, set the password.
  - Tried to set a too-short password, got an error.

Reviewers: btrahan, jungejason, nh

Reviewed By: jungejason

CC: aran, jungejason

Maniphest Tasks: T766

Differential Revision: https://secure.phabricator.com/D1374

conf/default.conf.php

@@ -327,6 +327,10 @@ return array(
   // information remains consistent across both systems.
   'account.editable'            => true,
 
+  // When users set or reset a password, it must have at least this many
+  // characters.
+  'account.minimum-password-length'  => 8,
+
 
 // --  Facebook  ------------------------------------------------------------ //
 

src/__phutil_library_map__.php

@@ -642,7 +642,6 @@ phutil_register_library_map(array(
     'PhabricatorRepositorySymbol' => 'applications/repository/storage/symbol',
     'PhabricatorRepositoryTestCase' => 'applications/repository/storage/repository/__tests__',
     'PhabricatorRepositoryType' => 'applications/repository/constants/repositorytype',
-    'PhabricatorResetPasswordController' => 'applications/auth/controller/resetpassword',
     'PhabricatorS3FileStorageEngine' => 'applications/files/engine/s3',
     'PhabricatorSQLPatchList' => 'infrastructure/setup/sql',
     'PhabricatorSearchAbstractDocument' => 'applications/search/index/abstractdocument',
@@ -1292,7 +1291,6 @@ phutil_register_library_map(array(
     'PhabricatorRepositorySvnCommitMessageParserWorker' => 'PhabricatorRepositoryCommitMessageParserWorker',
     'PhabricatorRepositorySymbol' => 'PhabricatorRepositoryDAO',
     'PhabricatorRepositoryTestCase' => 'PhabricatorTestCase',
-    'PhabricatorResetPasswordController' => 'PhabricatorAuthController',
     'PhabricatorS3FileStorageEngine' => 'PhabricatorFileStorageEngine',
     'PhabricatorSearchAttachController' => 'PhabricatorSearchController',
     'PhabricatorSearchBaseController' => 'PhabricatorController',

src/aphront/default/configuration/AphrontDefaultApplicationConfiguration.php

@@ -134,7 +134,6 @@ class AphrontDefaultApplicationConfiguration
         'email/$' => 'PhabricatorEmailLoginController',
         'etoken/(?P<token>\w+)/$' => 'PhabricatorEmailTokenController',
         'refresh/$' => 'PhabricatorRefreshCSRFController',
-        'reset/$' => 'PhabricatorResetPasswordController',
         'validate/$' => 'PhabricatorLoginValidateController',
       ),
 

src/applications/auth/controller/emailtoken/PhabricatorEmailTokenController.php

@@ -81,11 +81,17 @@ class PhabricatorEmailTokenController extends PhabricatorAuthController {
     $request->setCookie('phusr', $target_user->getUsername());
     $request->setCookie('phsid', $session_key);
 
+    if (PhabricatorEnv::getEnvConfig('account.editable')) {
+      $next = '/settings/page/password/?token='.$token;
+    } else {
+      $next = '/';
+    }
+
     $uri = new PhutilURI('/login/validate/');
     $uri->setQueryParams(
       array(
         'phusr' => $target_user->getUsername(),
-        'next'  => '/login/reset/',
+        'next'  => $next,
       ));
 
     return id(new AphrontRedirectResponse())

src/applications/auth/controller/resetpassword/PhabricatorResetPasswordController.php

@@ -1,108 +0,0 @@
-<?php
-
-/*
- * Copyright 2012 Facebook, Inc.
- *
- * 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.
- */
-
-class PhabricatorResetPasswordController extends PhabricatorAuthController {
-
-  public function processRequest() {
-    $request = $this->getRequest();
-    $user = $request->getUser();
-
-    if (!PhabricatorEnv::getEnvConfig('auth.password-auth-enabled')) {
-      return new Aphront400Response();
-    }
-
-    $errors = array();
-
-    $e_pass = true;
-    $e_confirm = true;
-
-    if ($request->isFormPost()) {
-      $e_pass = 'Error';
-      $e_confirm = 'Error';
-
-      $pass = $request->getStr('password');
-      $confirm = $request->getStr('confirm');
-
-      if (strlen($pass) < 3) {
-        $errors[] = 'That password is ridiculously short.';
-      }
-
-      if ($pass !== $confirm) {
-        $errors[] = "Passwords do not match.";
-      }
-
-      if (!$errors) {
-
-        // The CSRF token depends on the user's password hash. When we change
-        // it, we cause the CSRF check to fail. We don't need to do a CSRF
-        // check here because we've already performed one in the isFormPost()
-        // call earlier.
-
-        $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
-          $user->setPassword($pass);
-          $user->save();
-        unset($unguarded);
-
-        return id(new AphrontRedirectResponse())
-          ->setURI('/');
-      }
-    }
-
-    if ($errors) {
-      $error_view = new AphrontErrorView();
-      $error_view->setTitle('Password Reset Failed');
-      $error_view->setErrors($errors);
-    } else {
-      $error_view = null;
-    }
-
-    $form = new AphrontFormView();
-    $form
-      ->setUser($user)
-      ->setAction('/login/reset/')
-      ->appendChild(
-        id(new AphrontFormPasswordControl())
-          ->setLabel('New Password')
-          ->setName('password')
-          ->setError($e_pass))
-      ->appendChild(
-        id(new AphrontFormPasswordControl())
-          ->setLabel('Confirm Password')
-          ->setName('confirm')
-          ->setError($e_confirm))
-      ->appendChild(
-        id(new AphrontFormSubmitControl())
-          ->setValue('Reset Password')
-          ->addCancelButton('/', 'Skip'));
-
-    $panel = new AphrontPanelView();
-    $panel->setWidth(AphrontPanelView::WIDTH_FORM);
-    $panel->setHeader('Reset Password');
-    $panel->appendChild($form);
-
-    return $this->buildStandardPageResponse(
-      array(
-        $error_view,
-        $panel,
-      ),
-      array(
-        'title' => 'Reset Password',
-      ));
-  }
-
-}

src/applications/auth/controller/resetpassword/__init__.php

@@ -1,23 +0,0 @@
-<?php
-/**
- * This file is automatically generated. Lint this module to rebuild it.
- * @generated
- */
-
-
-
-phutil_require_module('phabricator', 'aphront/response/400');
-phutil_require_module('phabricator', 'aphront/response/redirect');
-phutil_require_module('phabricator', 'aphront/writeguard');
-phutil_require_module('phabricator', 'applications/auth/controller/base');
-phutil_require_module('phabricator', 'infrastructure/env');
-phutil_require_module('phabricator', 'view/form/base');
-phutil_require_module('phabricator', 'view/form/control/password');
-phutil_require_module('phabricator', 'view/form/control/submit');
-phutil_require_module('phabricator', 'view/form/error');
-phutil_require_module('phabricator', 'view/layout/panel');
-
-phutil_require_module('phutil', 'utils');
-
-
-phutil_require_source('PhabricatorResetPasswordController.php');

src/applications/people/controller/settings/panels/password/PhabricatorUserPasswordSettingsPanelController.php

@@ -32,31 +32,65 @@ class PhabricatorUserPasswordSettingsPanelController
       return new Aphront400Response();
     }
 
+    $min_len = PhabricatorEnv::getEnvConfig('account.minimum-password-length');
+    $min_len = (int)$min_len;
+
+    // NOTE: To change your password, you need to prove you own the account,
+    // either by providing the old password or by carrying a token to
+    // the workflow from a password reset email.
+
+    $token = $request->getStr('token');
+    if ($token) {
+      $valid_token = $user->validateEmailToken($token);
+    } else {
+      $valid_token = false;
+    }
+
+    $e_old = true;
+    $e_new = true;
+    $e_conf = true;
+
     $errors = array();
     if ($request->isFormPost()) {
-      if ($user->comparePassword($request->getStr('old_pw'))) {
-        $pass = $request->getStr('new_pw');
-        $conf = $request->getStr('conf_pw');
-        if ($pass === $conf) {
-          if (strlen($pass)) {
-            $user->setPassword($pass);
-            // This write is unguarded because the CSRF token has already
-            // been checked in the call to $request->isFormPost() and
-            // the CSRF token depends on the password hash, so when it
-            // is changed here the CSRF token check will fail.
-            $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
-            $user->save();
-            unset($unguarded);
-            return id(new AphrontRedirectResponse())
-              ->setURI('/settings/page/password/?saved=true');
-          } else {
-            $errors[] = 'Your new password is too short.';
-          }
-        } else {
-          $errors[] = 'New password and confirmation do not match.';
+      if (!$valid_token) {
+        if (!$user->comparePassword($request->getStr('old_pw'))) {
+          $errors[] = 'The old password you entered is incorrect.';
+          $e_old = 'Invalid';
         }
-      } else {
-        $errors[] = 'The old password you entered is incorrect.';
+      }
+
+      $pass = $request->getStr('new_pw');
+      $conf = $request->getStr('conf_pw');
+
+      if (strlen($pass) < $min_len) {
+        $errors[] = 'Your new password is too short.';
+        $e_new = 'Too Short';
+      }
+
+      if ($pass !== $conf) {
+        $errors[] = 'New password and confirmation do not match.';
+        $e_conf = 'Invalid';
+      }
+
+      if (!$errors) {
+        $user->setPassword($pass);
+        // This write is unguarded because the CSRF token has already
+        // been checked in the call to $request->isFormPost() and
+        // the CSRF token depends on the password hash, so when it
+        // is changed here the CSRF token check will fail.
+        $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
+        $user->save();
+        unset($unguarded);
+
+        if ($valid_token) {
+          // If this is a password set/reset, kick the user to the home page
+          // after we update their account.
+          $next = '/';
+        } else {
+          $next = '/settings/page/password/?saved=true';
+        }
+
+        return id(new AphrontRedirectResponse())->setURI($next);
       }
     }
 
@@ -74,22 +108,36 @@ class PhabricatorUserPasswordSettingsPanelController
       $notice->setErrors($errors);
     }
 
+    $len_caption = null;
+    if ($min_len) {
+      $len_caption = 'Minimum password length: '.$min_len.' characters.';
+    }
+
     $form = new AphrontFormView();
     $form
       ->setUser($user)
-      ->appendChild(
+      ->addHiddenInput('token', $token);
+
+    if (!$valid_token) {
+      $form->appendChild(
         id(new AphrontFormPasswordControl())
           ->setLabel('Old Password')
+          ->setError($e_old)
           ->setName('old_pw'));
+    }
+
     $form
       ->appendChild(
         id(new AphrontFormPasswordControl())
           ->setLabel('New Password')
+          ->setError($e_new)
           ->setName('new_pw'));
     $form
       ->appendChild(
         id(new AphrontFormPasswordControl())
           ->setLabel('Confirm Password')
+          ->setCaption($len_caption)
+          ->setError($e_conf)
           ->setName('conf_pw'));
     $form
       ->appendChild(