Contain fallout from overheating feed queries on user profile pages

Summary: Fixes T13349. If the user profile page feed query overheats, it currently takes the whole page with it. Contain the blast to a smaller radius.

Test Plan: {F6633322}

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13349

Differential Revision: https://secure.phabricator.com/D20678

src/applications/people/controller/PhabricatorPeopleProfileViewController.php

@@ -252,15 +252,30 @@ final class PhabricatorPeopleProfileViewController
     PhabricatorUser $user,
     $viewer) {
 
-    $query = new PhabricatorFeedQuery();
-    $query->withFilterPHIDs(
-      array(
-        $user->getPHID(),
-      ));
-    $query->setLimit(100);
-    $query->setViewer($viewer);
+    $query = id(new PhabricatorFeedQuery())
+      ->setViewer($viewer)
+      ->withFilterPHIDs(array($user->getPHID()))
+      ->setLimit(100)
+      ->setReturnPartialResultsOnOverheat(true);
+
     $stories = $query->execute();
 
+    $overheated_view = null;
+    $is_overheated = $query->getIsOverheated();
+    if ($is_overheated) {
+      $overheated_message =
+        PhabricatorApplicationSearchController::newOverheatedError(
+          (bool)$stories);
+
+      $overheated_view = id(new PHUIInfoView())
+        ->setSeverity(PHUIInfoView::SEVERITY_WARNING)
+        ->setTitle(pht('Query Overheated'))
+        ->setErrors(
+          array(
+            $overheated_message,
+          ));
+    }
+
     $builder = new PhabricatorFeedBuilder($stories);
     $builder->setUser($viewer);
     $builder->setShowHovercards(true);
@@ -268,8 +283,10 @@ final class PhabricatorPeopleProfileViewController
       'requires but just a single step.'));
     $view = $builder->buildView();
 
-    return $view->render();
-
+    return array(
+      $overheated_view,
+      $view->render(),
+    );
   }
 
 }