Use ManiphestTaskQuery in nearly all interfaces

Summary:
Ref T603. Make almost every task read policy-aware. Notable exceptions are:

  - Edge editor -- this stuff is prescreened and should be moved to ApplicationTransactions eventually anyway.
  - Search/attach stuff -- this stuff needs some general work. The actual list should be fine since you can't pull handles. There may be a very indirect hole here where you could attach an object you can't see (but do know the ID of) to an object you can see. Pretty fluff.
  - The "Tasks" field in Differential will let you reference objects you can't see. Possibly this is desirable, in the case of commandeering revisions. Mostly, it was inconvenient to get a viewer (I think).

Test Plan:
  - Called `maniphest.info`.
  - Called `maniphest.update`.
  - Batch edited tasks.
  - Dragged and dropped tasks to change subpriority.
  - Subscribed and unsubscribed from a task.
  - Edited a task.
  - Created a task.
  - Created a task with a parent.
  - Created a task with a template.
  - Previewed a task update.
  - Commented on a task.
  - Added a dependency.
  - Searched for "T33" in object search dialog.
  - Created a branch "T33", ran `arc diff`, verified link.
  - Pushed a commit with "Fixes T33", verified close.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7119

src/applications/differential/field/specification/DifferentialBranchFieldSpecification.php

@@ -56,7 +56,10 @@ final class DifferentialBranchFieldSpecification
     $match = null;
     if (preg_match('/^T(\d+)/i', $branch, $match)) { // No $ to allow T123_demo.
       list(, $task_id) = $match;
-      $task = id(new ManiphestTask())->load($task_id);
+      $task = id(new ManiphestTaskQuery())
+        ->setViewer($editor->requireActor())
+        ->withIDs(array($task_id))
+        ->executeOne();
       if ($task) {
         id(new PhabricatorEdgeEditor())
           ->setActor($this->getUser())

src/applications/differential/field/specification/DifferentialFreeformFieldSpecification.php

@@ -150,8 +150,10 @@ abstract class DifferentialFreeformFieldSpecification
 
     $tasks = $this->findMentionedTasks($message);
     if ($tasks) {
-      $tasks = id(new ManiphestTask())
-        ->loadAllWhere('id IN (%Ld)', array_keys($tasks));
+      $tasks = id(new ManiphestTaskQuery())
+        ->setViewer($editor->getActor())
+        ->withIDs(array_keys($tasks))
+        ->execute();
       $this->saveFieldEdges(
         $editor->getRevision(),
         PhabricatorEdgeConfig::TYPE_DREV_HAS_RELATED_TASK,

src/applications/differential/field/specification/DifferentialManiphestTasksFieldSpecification.php

@@ -128,6 +128,7 @@ final class DifferentialManiphestTasksFieldSpecification
       return array();
     }
 
+    // TODO: T603 Get a viewer here so we can issue the right query.
 
     $task_ids = $matches[1];
     $tasks = id(new ManiphestTask())

src/applications/maniphest/conduit/ConduitAPI_maniphest_info_Method.php

@@ -30,7 +30,10 @@ final class ConduitAPI_maniphest_info_Method
   protected function execute(ConduitAPIRequest $request) {
     $task_id = $request->getValue('task_id');
 
-    $task = id(new ManiphestTask())->load($task_id);
+    $task = id(new ManiphestTaskQuery())
+      ->setViewer($request->getUser())
+      ->withIDs(array($task_id))
+      ->executeOne();
     if (!$task) {
       throw new ConduitException('ERR_BAD_TASK');
     }

src/applications/maniphest/conduit/ConduitAPI_maniphest_update_Method.php

@@ -35,11 +35,15 @@ final class ConduitAPI_maniphest_update_Method
     }
 
     if ($id) {
-      $task = id(new ManiphestTask())->load($id);
+      $task = id(new ManiphestTaskQuery())
+        ->setViewer($request->getUser())
+        ->withIDs(array($id))
+        ->executeOne();
     } else {
-      $task = id(new ManiphestTask())->loadOneWhere(
-        'phid = %s',
-        $phid);
+      $task = id(new ManiphestTaskQuery())
+        ->setViewer($request->getUser())
+        ->withPHIDs(array($phid))
+        ->executeOne();
     }
 
     $params = $request->getAllParameters();

src/applications/maniphest/controller/ManiphestBatchEditController.php

@@ -11,9 +11,15 @@ final class ManiphestBatchEditController extends ManiphestController {
     $user = $request->getUser();
 
     $task_ids = $request->getArr('batch');
-    $tasks = id(new ManiphestTask())->loadAllWhere(
-      'id IN (%Ld)',
-      $task_ids);
+    $tasks = id(new ManiphestTaskQuery())
+      ->setViewer($user)
+      ->withIDs($task_ids)
+      ->requireCapabilities(
+        array(
+          PhabricatorPolicyCapability::CAN_VIEW,
+          PhabricatorPolicyCapability::CAN_EDIT,
+        ))
+      ->execute();
 
     $actions = $request->getStr('actions');
     if ($actions) {

src/applications/maniphest/controller/ManiphestSubpriorityController.php

@@ -13,13 +13,24 @@ final class ManiphestSubpriorityController extends ManiphestController {
       return new Aphront403Response();
     }
 
-    $task = id(new ManiphestTask())->load($request->getInt('task'));
+    $task = id(new ManiphestTaskQuery())
+      ->setViewer($user)
+      ->withIDs(array($request->getInt('task')))
+      ->requireCapabilities(
+        array(
+          PhabricatorPolicyCapability::CAN_VIEW,
+          PhabricatorPolicyCapability::CAN_EDIT,
+        ))
+      ->executeOne();
     if (!$task) {
       return new Aphront404Response();
     }
 
     if ($request->getInt('after')) {
-      $after_task = id(new ManiphestTask())->load($request->getInt('after'));
+      $after_task = id(new ManiphestTaskQuery())
+        ->setViewer($user)
+        ->withIDs(array($request->getInt('after')))
+        ->executeOne();
       if (!$after_task) {
         return new Aphront404Response();
       }

src/applications/maniphest/controller/ManiphestSubscribeController.php

@@ -15,7 +15,10 @@ final class ManiphestSubscribeController extends ManiphestController {
     $request = $this->getRequest();
     $user = $request->getUser();
 
-    $task = id(new ManiphestTask())->load($this->id);
+    $task = id(new ManiphestTaskQuery())
+      ->setViewer($user)
+      ->withIDs(array($this->id))
+      ->executeOne();
     if (!$task) {
       return new Aphront404Response();
     }

src/applications/maniphest/controller/ManiphestTaskDetailController.php

@@ -20,7 +20,10 @@ final class ManiphestTaskDetailController extends ManiphestController {
 
     $priority_map = ManiphestTaskPriority::getTaskPriorityMap();
 
-    $task = id(new ManiphestTask())->load($this->id);
+    $task = id(new ManiphestTaskQuery())
+      ->setViewer($user)
+      ->withIDs(array($this->id))
+      ->executeOne();
     if (!$task) {
       return new Aphront404Response();
     }
@@ -28,7 +31,10 @@ final class ManiphestTaskDetailController extends ManiphestController {
     $workflow = $request->getStr('workflow');
     $parent_task = null;
     if ($workflow && is_numeric($workflow)) {
-      $parent_task = id(new ManiphestTask())->load($workflow);
+      $parent_task = id(new ManiphestTaskQuery())
+        ->setViewer($user)
+        ->withIDs(array($workflow))
+        ->executeOne();
     }
 
     $transactions = id(new ManiphestTransactionQuery())

src/applications/maniphest/controller/ManiphestTaskEditController.php

@@ -21,7 +21,15 @@ final class ManiphestTaskEditController extends ManiphestController {
     $template_id = null;
 
     if ($this->id) {
-      $task = id(new ManiphestTask())->load($this->id);
+      $task = id(new ManiphestTaskQuery())
+        ->setViewer($user)
+        ->requireCapabilities(
+          array(
+            PhabricatorPolicyCapability::CAN_VIEW,
+            PhabricatorPolicyCapability::CAN_EDIT,
+          ))
+        ->withIDs(array($this->id))
+        ->executeOne();
       if (!$task) {
         return new Aphront404Response();
       }
@@ -74,7 +82,10 @@ final class ManiphestTaskEditController extends ManiphestController {
       // You can only have a parent task if you're creating a new task.
       $parent_id = $request->getInt('parent');
       if ($parent_id) {
-        $parent_task = id(new ManiphestTask())->load($parent_id);
+        $parent_task = id(new ManiphestTaskQuery())
+          ->setViewer($user)
+          ->withIDs(array($parent_id))
+          ->executeOne();
         if (!$template_id) {
           $template_id = $parent_id;
         }
@@ -274,7 +285,10 @@ final class ManiphestTaskEditController extends ManiphestController {
           $user->getPHID(),
         ));
         if ($template_id) {
-          $template_task = id(new ManiphestTask())->load($template_id);
+          $template_task = id(new ManiphestTaskQuery())
+            ->setViewer($user)
+            ->withIDs(array($template_id))
+            ->executeOne();
           if ($template_task) {
             $task->setCCPHIDs($template_task->getCCPHIDs());
             $task->setProjectPHIDs($template_task->getProjectPHIDs());

src/applications/maniphest/controller/ManiphestTransactionPreviewController.php

@@ -18,7 +18,10 @@ final class ManiphestTransactionPreviewController extends ManiphestController {
 
     $comments = $request->getStr('comments');
 
-    $task = id(new ManiphestTask())->load($this->id);
+    $task = id(new ManiphestTaskQuery())
+      ->setViewer($user)
+      ->withIDs(array($this->id))
+      ->executeOne();
     if (!$task) {
       return new Aphront404Response();
     }

src/applications/maniphest/controller/ManiphestTransactionSaveController.php

@@ -9,7 +9,14 @@ final class ManiphestTransactionSaveController extends ManiphestController {
     $request = $this->getRequest();
     $user = $request->getUser();
 
-    $task = id(new ManiphestTask())->load($request->getStr('taskID'));
+    // TODO: T603 This doesn't require CAN_EDIT because non-editors can still
+    // leave comments, probably? For now, this just nondisruptive. Smooth this
+    // out once policies are more clear.
+
+    $task = id(new ManiphestTaskQuery())
+      ->setViewer($user)
+      ->withIDs(array($request->getStr('taskID')))
+      ->executeOne();
     if (!$task) {
       return new Aphront404Response();
     }

src/applications/maniphest/editor/ManiphestTransactionEditor.php

@@ -15,6 +15,9 @@ final class ManiphestTransactionEditor extends PhabricatorEditor {
 
   public static function getNextSubpriority($pri, $sub) {
 
+    // TODO: T603 Figure out what the policies here should be once this gets
+    // cleaned up.
+
     if ($sub === null) {
       $next = id(new ManiphestTask())->loadOneWhere(
         'priority = %d ORDER BY subpriority ASC LIMIT 1',

src/applications/maniphest/event/ManiphestEdgeEventListener.php

@@ -36,6 +36,9 @@ final class ManiphestEdgeEventListener extends PhutilEventListener {
     $edges = $this->loadAllEdges($event);
     $tasks = array();
     if ($edges) {
+      // TODO: T603 This should probably all get nuked. Until then, this isn't
+      // realllllly a policy issue since callers are (or should be) doing
+      // policy checks anyway.
       $tasks = id(new ManiphestTask())->loadAllWhere(
         'phid IN (%Ls)',
         array_keys($edges));

src/applications/search/controller/PhabricatorSearchAttachController.php

@@ -149,9 +149,10 @@ final class PhabricatorSearchAttachController
       return $response;
     }
 
-    $targets = id(new ManiphestTask())->loadAllWhere(
-      'phid in (%Ls) ORDER BY id ASC',
-      array_keys($phids));
+    $targets = id(new ManiphestTaskQuery())
+      ->setViewer($user)
+      ->withPHIDs(array_keys($phids))
+      ->execute();
 
     if (empty($targets)) {
       return $response;

src/applications/search/controller/PhabricatorSearchSelectController.php

@@ -98,6 +98,8 @@ final class PhabricatorSearchSelectController
           $object_ids);
         break;
       case ManiphestPHIDTypeTask::TYPECONST:
+        // TODO: (T603) Clean this up. This should probably all run through
+        // ObjectQuery?
         $objects = id(new ManiphestTask())->loadAllWhere(
           'id IN (%Ld)',
           $object_ids);

src/infrastructure/PhabricatorEditor.php

@@ -10,11 +10,11 @@ abstract class PhabricatorEditor extends Phobject {
     return $this;
   }
 
-  final protected function getActor() {
+  final public function getActor() {
     return $this->actor;
   }
 
-  final protected function requireActor() {
+  final public function requireActor() {
     $actor = $this->getActor();
     if (!$actor) {
       throw new Exception('You must setActor()!');