Show the customized "Login" message on the login screen

Summary: Depends on D19992. Ref T13222. If administrators provide a custom login message, show it on the login screen.

Test Plan:
{F6137930}

  - Viewed login screen with and without a custom message.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13222

Differential Revision: https://secure.phabricator.com/D19994

resources/celerity/map.php

@@ -9,7 +9,7 @@ return array(
   'names' => array(
     'conpherence.pkg.css' => '3c8a0668',
     'conpherence.pkg.js' => '020aebcf',
-    'core.pkg.css' => '7fa376a9',
+    'core.pkg.css' => 'e94cc920',
     'core.pkg.js' => '5c737607',
     'differential.pkg.css' => 'b8df73d4',
     'differential.pkg.js' => '67c9ea4c',
@@ -36,7 +36,7 @@ return array(
     'rsrc/css/aphront/typeahead-browse.css' => 'b7ed02d2',
     'rsrc/css/aphront/typeahead.css' => '8779483d',
     'rsrc/css/application/almanac/almanac.css' => '2e050f4f',
-    'rsrc/css/application/auth/auth.css' => '9f6e4ed8',
+    'rsrc/css/application/auth/auth.css' => 'add92fd8',
     'rsrc/css/application/base/main-menu-view.css' => '8e2d9a28',
     'rsrc/css/application/base/notification-menu.css' => 'e6962e89',
     'rsrc/css/application/base/phui-theme.css' => '35883b37',
@@ -524,7 +524,7 @@ return array(
     'aphront-tooltip-css' => 'e3f2412f',
     'aphront-typeahead-control-css' => '8779483d',
     'application-search-view-css' => '0f7c06d8',
-    'auth-css' => '9f6e4ed8',
+    'auth-css' => 'add92fd8',
     'bulk-job-css' => '73af99f5',
     'conduit-api-css' => 'ce2cfc41',
     'config-options-css' => '16c920ae',

src/applications/auth/controller/PhabricatorAuthLoginController.php

@@ -17,6 +17,7 @@ final class PhabricatorAuthLoginController
     if ($parameter_name == 'code') {
       return true;
     }
+
     return parent::shouldAllowRestrictedParameter($parameter_name);
   }
 

src/applications/auth/controller/PhabricatorAuthStartController.php

@@ -194,6 +194,8 @@ final class PhabricatorAuthStartController
       $invite_message = $this->renderInviteHeader($invite);
     }
 
+    $custom_message = $this->newCustomStartMessage();
+
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb(pht('Login'));
     $crumbs->setBorder(true);
@@ -202,6 +204,7 @@ final class PhabricatorAuthStartController
     $view = array(
       $header,
       $invite_message,
+      $custom_message,
       $out,
     );
 
@@ -305,4 +308,25 @@ final class PhabricatorAuthStartController
       ->setURI($auto_uri);
   }
 
+  private function newCustomStartMessage() {
+    $viewer = $this->getViewer();
+
+    $text = PhabricatorAuthMessage::loadMessageText(
+      $viewer,
+      PhabricatorAuthLoginMessageType::MESSAGEKEY);
+
+    if (!strlen($text)) {
+      return null;
+    }
+
+    $remarkup_view = new PHUIRemarkupView($viewer, $text);
+
+    return phutil_tag(
+      'div',
+      array(
+        'class' => 'auth-custom-message',
+      ),
+      $remarkup_view);
+  }
+
 }

src/applications/auth/storage/PhabricatorAuthMessage.php

@@ -61,6 +61,22 @@ final class PhabricatorAuthMessage
     return $this->getMessageType()->getDisplayName();
   }
 
+  public static function loadMessageText(
+    PhabricatorUser $viewer,
+    $message_key) {
+
+    $message = id(new PhabricatorAuthMessageQuery())
+      ->setViewer($viewer)
+      ->withMessageKeys(array($message_key))
+      ->executeOne();
+
+    if (!$message) {
+      return null;
+    }
+
+    return $message->getMessageText();
+  }
+
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 

webroot/rsrc/css/application/auth/auth.css

@@ -55,3 +55,12 @@
 .auth-account-view-account-uri {
   word-break: break-word;
 }
+
+.auth-custom-message {
+  margin: 32px auto 64px;
+  max-width: 548px;
+  background: #fff;
+  padding: 16px;
+  border: 1px solid {$lightblueborder};
+  border-radius: 4px;
+}