Allow installs to require email verification

Summary:
Allow installs to require users to verify email addresses before they can use Phabricator. If a user logs in without a verified email address, they're given instructions to verify their address.

This isn't too useful on its own since we don't actually have arbitrary email registration, but the next step is to allow installs to restrict email to only some domains (e.g., @mycompany.com).

Test Plan:
  - Verification
    - Set verification requirement to `true`.
    - Tried to use Phabricator with an unverified account, was told to verify.
    - Tried to use Conduit, was given a verification error.
    - Verified account, used Phabricator.
    - Unverified account, reset password, verified implicit verification, used Phabricator.
  - People Admin Interface
    - Viewed as admin. Clicked "Administrate User".
    - Viewed as non-admin
  - Sanity Checks
    - Used Conduit normally from web/CLI with a verified account.
    - Logged in/out.
    - Sent password reset email.
    - Created a new user.
    - Logged in with an unverified user but with the configuration set to off.

Reviewers: btrahan, vrana, jungejason

Reviewed By: btrahan

CC: aran, csilvers

Maniphest Tasks: T1184

Differential Revision: https://secure.phabricator.com/D2520

src/applications/auth/controller/logout/PhabricatorLogoutController.php

@@ -23,6 +23,11 @@ final class PhabricatorLogoutController
     return true;
   }
 
+  public function shouldRequireEmailVerification() {
+    // Allow unverified users to logout.
+    return false;
+  }
+
   public function shouldRequireEnabledUser() {
     // Allow disabled users to logout.
     return false;

src/applications/auth/controller/mustverify/PhabricatorMustVerifyEmailController.php

@@ -0,0 +1,90 @@
+<?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.
+ */
+
+final class PhabricatorMustVerifyEmailController
+  extends PhabricatorAuthController {
+
+  public function shouldRequireLogin() {
+    return false;
+  }
+
+  public function shouldRequireEmailVerification() {
+    // NOTE: We don't technically need this since PhabricatorController forces
+    // us here in either case, but it's more consistent with intent.
+    return false;
+  }
+
+  public function processRequest() {
+    $request = $this->getRequest();
+    $user = $request->getUser();
+
+    $email = $user->loadPrimaryEmail();
+
+    if ($email->getIsVerified()) {
+      return id(new AphrontRedirectResponse())->setURI('/');
+    }
+
+    $email_address = $email->getAddress();
+
+    $sent = null;
+    if ($request->isFormPost()) {
+      $email->sendVerificationEmail($user);
+      $sent = new AphrontErrorView();
+      $sent->setSeverity(AphrontErrorView::SEVERITY_NOTICE);
+      $sent->setTitle('Email Sent');
+      $sent->appendChild(
+        '<p>Another verification email was sent to <strong>'.
+        phutil_escape_html($email_address).'</strong>.</p>');
+    }
+
+    $error_view = new AphrontRequestFailureView();
+    $error_view->setHeader('Check Your Email');
+    $error_view->appendChild(
+      '<p>You must verify your email address to login. You should have a new '.
+      'email message from Phabricator with verification instructions in your '.
+      'inbox (<strong>'.phutil_escape_html($email_address).'</strong>).</p>');
+    $error_view->appendChild(
+      '<p>If you did not receive an email, you can click the button below '.
+      'to try sending another one.</p>');
+    $error_view->appendChild(
+      '<div class="aphront-failure-continue">'.
+        phabricator_render_form(
+          $user,
+          array(
+            'action' => '/login/mustverify/',
+            'method' => 'POST',
+          ),
+          phutil_render_tag(
+            'button',
+            array(
+            ),
+            'Send Another Email')).
+      '</div>');
+
+
+    return $this->buildStandardPageResponse(
+      array(
+        $sent,
+        $error_view,
+      ),
+      array(
+        'title' => 'Must Verify Email',
+      ));
+  }
+
+}

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

@@ -0,0 +1,19 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'aphront/response/redirect');
+phutil_require_module('phabricator', 'applications/auth/controller/base');
+phutil_require_module('phabricator', 'infrastructure/javelin/markup');
+phutil_require_module('phabricator', 'view/form/error');
+phutil_require_module('phabricator', 'view/page/failure');
+
+phutil_require_module('phutil', 'markup');
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('PhabricatorMustVerifyEmailController.php');