Make most file reads policy-aware

Summary: Ref T603. Swaps out most `PhabricatorFile` loads for `PhabricatorFileQuery`.

Test Plan:
  - Viewed Differential changesets.
  - Used `file.info`.
  - Used `file.download`.
  - Viewed a file.
  - Deleted a file.
  - Used `/Fnnnn` to access a file.
  - Uploaded an image, verified a thumbnail generated.
  - Created and edited a macro.
  - Added a meme.
  - Did old-school attach-a-file-to-a-task.
  - Viewed a paste.
  - Viewed a mock.
  - Embedded a mock.
  - Profiled a page.
  - Parsed a commit with image files linked to a revision with image files.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7178

src/applications/differential/controller/DifferentialChangesetViewController.php

@@ -296,6 +296,8 @@ final class DifferentialChangesetViewController extends DifferentialController {
     DifferentialChangeset $changeset,
     $is_new) {
 
+    $viewer = $this->getRequest()->getUser();
+
     if ($is_new) {
       $key = 'raw:new:phid';
     } else {
@@ -307,9 +309,13 @@ final class DifferentialChangesetViewController extends DifferentialController {
     $file = null;
     $phid = idx($metadata, $key);
     if ($phid) {
-      $file = id(new PhabricatorFile())->loadOneWhere(
+      $file = id(new PhabricatorFileQuery())
-        'phid = %s',
+        ->setViewer($viewer)
-        $phid);
+        ->withPHIDs(array($phid))
+        ->execute();
+      if ($file) {
+        $file = head($file);
+      }
     }
 
     if (!$file) {

src/applications/differential/controller/DifferentialRevisionViewController.php

@@ -887,6 +887,7 @@ final class DifferentialRevisionViewController extends DifferentialController {
    * @return mixed (@{class:PhabricatorFile} if found, null if not)
    */
   public function loadFileByPHID($phid) {
+    // TODO: (T603) Factor this and the other one out.
     $file = id(new PhabricatorFile())->loadOneWhere(
       'phid = %s',
       $phid);

src/applications/differential/mail/DifferentialReviewRequestMail.php

@@ -104,6 +104,7 @@ abstract class DifferentialReviewRequestMail extends DifferentialMail {
   }
 
   public function loadFileByPHID($phid) {
+    // TODO: (T603) Factor this and the other one out.
     $file = id(new PhabricatorFile())->loadOneWhere(
       'phid = %s',
       $phid);

src/applications/differential/parser/DifferentialChangesetParser.php

@@ -851,6 +851,7 @@ final class DifferentialChangesetParser {
             $file_phids[] = $new_phid;
           }
 
+          // TODO: (T603) Probably fine to use omnipotent viewer here?
           $files = id(new PhabricatorFile())->loadAllWhere(
             'phid IN (%Ls)',
             $file_phids);

src/applications/files/conduit/ConduitAPI_file_download_Method.php

@@ -29,9 +29,10 @@ final class ConduitAPI_file_download_Method
   protected function execute(ConduitAPIRequest $request) {
     $phid = $request->getValue('phid');
 
-    $file = id(new PhabricatorFile())->loadOneWhere(
+    $file = id(new PhabricatorFileQuery())
-      'phid = %s',
+      ->setViewer($request->getUser())
-      $phid);
+      ->withPHIDs(array($phid))
+      ->executeOne();
     if (!$file) {
       throw new ConduitException('ERR-BAD-PHID');
     }

src/applications/files/conduit/ConduitAPI_file_info_Method.php

@@ -30,14 +30,16 @@ final class ConduitAPI_file_info_Method extends ConduitAPI_file_Method {
     $phid = $request->getValue('phid');
     $id   = $request->getValue('id');
 
+    $query = id(new PhabricatorFileQuery())
+      ->setViewer($request->getUser());
     if ($id) {
-      $file = id(new PhabricatorFile())->load($id);
+      $query->withIDs(array($id));
     } else {
-      $file = id(new PhabricatorFile())->loadOneWhere(
+      $query->withPHIDs(array($phid));
-        'phid = %s',
-        $phid);
     }
 
+    $file = $query->executeOne();
+
     if (!$file) {
       throw new ConduitException('ERR-NOT-FOUND');
     }

src/applications/files/controller/PhabricatorFileDataController.php

@@ -25,9 +25,10 @@ final class PhabricatorFileDataController extends PhabricatorFileController {
         ->setURI($uri->setPath($request->getPath()));
     }
 
-    $file = id(new PhabricatorFile())->loadOneWhere(
+    $file = id(new PhabricatorFileQuery())
-      'phid = %s',
+      ->setViewer($request->getUser())
-      $this->phid);
+      ->withPHIDs(array($this->phid))
+      ->executeOne();
     if (!$file) {
       return new Aphront404Response();
     }

src/applications/files/controller/PhabricatorFileDeleteController.php

@@ -9,13 +9,18 @@ final class PhabricatorFileDeleteController extends PhabricatorFileController {
   }
 
   public function processRequest() {
-
     $request = $this->getRequest();
     $user = $request->getUser();
 
-    $file = id(new PhabricatorFile())->loadOneWhere(
+    $file = id(new PhabricatorFileQuery())
-      'id = %d',
+      ->setViewer($user)
-      $this->id);
+      ->withIDs(array($this->id))
+      ->requireCapabilities(
+        array(
+          PhabricatorPolicyCapability::CAN_VIEW,
+          PhabricatorPolicyCapability::CAN_EDIT,
+        ))
+      ->executeOne();
     if (!$file) {
       return new Aphront404Response();
     }

src/applications/files/controller/PhabricatorFileShortcutController.php

@@ -10,10 +10,14 @@ final class PhabricatorFileShortcutController
   }
 
   public function processRequest() {
-    $file = id(new PhabricatorFile())->load($this->id);
+    $file = id(new PhabricatorFileQuery())
+      ->setViewer($this->getRequest()->getUser())
+      ->withIDs(array($this->id))
+      ->executeOne();
     if (!$file) {
       return new Aphront404Response();
     }
+
     return id(new AphrontRedirectResponse())->setURI($file->getBestURI());
   }
 

src/applications/files/controller/PhabricatorFileTransformController.php

@@ -18,8 +18,12 @@ final class PhabricatorFileTransformController
   }
 
   public function processRequest() {
+    $viewer = $this->getRequest()->getUser();
 
-    $file = id(new PhabricatorFile())->loadOneWhere('phid = %s', $this->phid);
+    $file = id(new PhabricatorFileQuery())
+      ->setViewer($viewer)
+      ->withPHIDs(array($this->phid))
+      ->executeOne();
     if (!$file) {
       return new Aphront404Response();
     }
@@ -125,20 +129,17 @@ final class PhabricatorFileTransformController
   private function buildTransformedFileResponse(
     PhabricatorTransformedFile $xform) {
 
-    $file = id(new PhabricatorFile())->loadOneWhere(
+    $file = id(new PhabricatorFileQuery())
-      'phid = %s',
+      ->setViewer($this->getRequest()->getUser())
-      $xform->getTransformedPHID());
+      ->withPHIDs(array($xform->getTransformedPHID()))
-    if ($file) {
+      ->executeOne();
-      $uri = $file->getBestURI();
+    if (!$file) {
-    } else {
+      return new Aphront404Response();
-      $bad_phid = $xform->getTransformedPHID();
-      throw new Exception(
-        "Unable to load file with phid {$bad_phid}."
-      );
     }
 
     // TODO: We could just delegate to the file view controller instead,
     // which would save the client a roundtrip, but is slightly more complex.
+    $uri = $file->getBestURI();
     return id(new AphrontRedirectResponse())->setURI($uri);
   }
 

src/applications/files/management/PhabricatorFilesManagementWorkflow.php

@@ -19,6 +19,8 @@ abstract class PhabricatorFilesManagementWorkflow
     if ($args->getArg('names')) {
       $iterator = array();
 
+      // TODO: (T603) Convert this to ObjectNameQuery.
+
       foreach ($args->getArg('names') as $name) {
         $name = trim($name);
 

src/applications/files/remarkup/PhabricatorRemarkupRuleEmbedFile.php

@@ -21,6 +21,8 @@ final class PhabricatorRemarkupRuleEmbedFile
     $file = null;
     if ($matches[1]) {
       // TODO: This is pretty inefficient if there are a bunch of files.
+      // TODO: (T603) This isn't policy-aware and should be extending
+      // PhabricatorRemarkupRuleObject.
       $file = id(new PhabricatorFile())->load($matches[1]);
     }
 

src/applications/files/storage/PhabricatorFile.php

@@ -828,6 +828,7 @@ final class PhabricatorFile extends PhabricatorFileDAO
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
+      PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 

src/applications/macro/controller/PhabricatorMacroEditController.php

@@ -82,9 +82,10 @@ final class PhabricatorMacroEditController
           $errors[] = pht('Could not fetch URL: %s', $ex->getMessage());
         }
       } else if ($request->getStr('phid')) {
-        $file = id(new PhabricatorFile())->loadOneWhere(
+        $file = id(new PhabricatorFileQuery())
-          'phid = %s',
+          ->setViewer($user)
-          $request->getStr('phid'));
+          ->withPHIDs(array($request->getStr('phid')))
+          ->executeOne();
       }
 
       if ($file) {

src/applications/macro/controller/PhabricatorMacroMemeController.php

@@ -38,10 +38,15 @@ final class PhabricatorMacroMemeController
         $file->getPHID(), $hash);
 
     if ($xform) {
-      $memefile = id(new PhabricatorFile())->loadOneWhere(
+      $memefile = id(new PhabricatorFileQuery())
-      'phid = %s', $xform->getTransformedPHID());
+        ->setViewer($user)
+        ->withPHIDs(array($xform->getTransformedPHID()))
+        ->executeOne();
+      if ($memefile) {
         return $memefile->getBestURI();
       }
+    }
+
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
     $transformers = (new PhabricatorImageTransformer());
     $newfile = $transformers

src/applications/maniphest/controller/ManiphestTaskDetailController.php

@@ -611,9 +611,12 @@ final class ManiphestTaskDetailController extends ManiphestController {
     if ($file_infos) {
       $file_phids = array_keys($file_infos);
 
-      $files = id(new PhabricatorFile())->loadAllWhere(
+      // TODO: These should probably be handles or something; clean this up
-        'phid IN (%Ls)',
+      // as we sort out file attachments.
-        $file_phids);
+      $files = id(new PhabricatorFileQuery())
+        ->setViewer($viewer)
+        ->withPHIDs($file_phids)
+        ->execute();
 
       $file_view = new PhabricatorFileLinkListView();
       $file_view->setFiles($files);

src/applications/maniphest/controller/ManiphestTaskEditController.php

@@ -72,9 +72,10 @@ final class ManiphestTaskEditController extends ManiphestController {
       }
 
       if ($file_phids) {
-        $files = id(new PhabricatorFile())->loadAllWhere(
+        $files = id(new PhabricatorFileQuery())
-          'phid IN (%Ls)',
+          ->setViewer($user)
-          $file_phids);
+          ->withPHIDs($file_phids)
+          ->execute();
       }
 
       $template_id = $request->getInt('template');

src/applications/maniphest/controller/ManiphestTransactionSaveController.php

@@ -33,9 +33,10 @@ final class ManiphestTransactionSaveController extends ManiphestController {
     // Look for drag-and-drop uploads first.
     $file_phids = $request->getArr('files');
     if ($file_phids) {
-      $files = id(new PhabricatorFile())->loadAllWhere(
+      $files = id(new PhabricatorFileQuery())
-        'phid in (%Ls)',
+        ->setViewer($user)
-        $file_phids);
+        ->withPHIDs(array($file_phids))
+        ->execute();
     }
 
     // This means "attach a file" even though we store other types of data

src/applications/metamta/replyhandler/PhabricatorMailReplyHandler.php

@@ -315,6 +315,7 @@ EOBODY;
       return $body;
     }
 
+    // TODO: (T603) What's the policy here?
     $files = id(new PhabricatorFile())
       ->loadAllWhere('phid in (%Ls)', $attachments);
 

src/applications/paste/controller/PhabricatorPasteViewController.php

@@ -44,9 +44,10 @@ final class PhabricatorPasteViewController extends PhabricatorPasteController {
       return new Aphront404Response();
     }
 
-    $file = id(new PhabricatorFile())->loadOneWhere(
+    $file = id(new PhabricatorFileQuery())
-      'phid = %s',
+      ->setViewer($user)
-      $paste->getFilePHID());
+      ->withPHIDs(array($paste->getFilePHID()))
+      ->executeOne();
     if (!$file) {
       return new Aphront400Response();
     }

src/applications/paste/query/PhabricatorPasteQuery.php

@@ -162,9 +162,10 @@ final class PhabricatorPasteQuery
 
   private function loadRawContent(array $pastes) {
     $file_phids = mpull($pastes, 'getFilePHID');
-    $files = id(new PhabricatorFile())->loadAllWhere(
+    $files = id(new PhabricatorFileQuery())
-      'phid IN (%Ls)',
+      ->setViewer($this->getViewer())
-      $file_phids);
+      ->withPHIDs($file_phids)
+      ->execute();
     $files = mpull($files, null, 'getPHID');
 
     foreach ($pastes as $key => $paste) {

src/applications/people/storage/PhabricatorUser.php

@@ -746,6 +746,8 @@ EOBODY;
     $src_phid = $this->getProfileImagePHID();
 
     if ($src_phid) {
+      // TODO: (T603) Can we get rid of this entirely and move it to
+      // PeopleQuery with attach/attachable?
       $file = id(new PhabricatorFile())->loadOneWhere('phid = %s', $src_phid);
       if ($file) {
         $this->profileImage = $file->getBestURI();

src/applications/pholio/controller/PholioInlineThumbController.php

@@ -34,9 +34,14 @@ final class PholioInlineThumbController extends PholioController {
       return new Aphront404Response();
     }
 
-    $file = id(new PhabricatorFile())->loadOneWhere(
+    $file = id(new PhabricatorFileQuery())
-      'phid = %s',
+      ->setViewer($user)
-      $image->getFilePHID());
+      ->witHPHIDs(array($image->getFilePHID()))
+      ->executeOne();
+
+    if (!$file) {
+      return new Aphront404Response();
+    }
 
     return id(new AphrontRedirectResponse())->setURI($file->getThumb60x45URI());
   }

src/applications/pholio/query/PholioImageQuery.php

@@ -104,9 +104,12 @@ final class PholioImageQuery
     assert_instances_of($images, 'PholioImage');
 
     $file_phids = mpull($images, 'getFilePHID');
-    $all_files = mpull(id(new PhabricatorFile())->loadAllWhere(
+
-      'phid IN (%Ls)',
+    $all_files = id(new PhabricatorFileQuery())
-      $file_phids), null, 'getPHID');
+      ->setViewer($this->getViewer())
+      ->withPHIDs($file_phids)
+      ->execute();
+    $all_files = mpull($all_files, null, 'getPHID');
 
     if ($this->needInlineComments) {
       $all_inline_comments = id(new PholioTransactionComment())

src/applications/pholio/query/PholioMockQuery.php

@@ -132,9 +132,12 @@ final class PholioMockQuery
   private function loadCoverFiles(array $mocks) {
     assert_instances_of($mocks, 'PholioMock');
     $cover_file_phids = mpull($mocks, 'getCoverPHID');
-    $cover_files = mpull(id(new PhabricatorFile())->loadAllWhere(
+    $cover_files = id(new PhabricatorFileQuery())
-      'phid IN (%Ls)',
+      ->setViewer($this->getViewer())
-      $cover_file_phids), null, 'getPHID');
+      ->withPHIDs($cover_file_phids)
+      ->execute();
+
+    $cover_files = mpull($cover_files, null, 'getPHID');
 
     foreach ($mocks as $mock) {
       $file = idx($cover_files, $mock->getCoverPHID());

src/applications/project/storage/PhabricatorProjectProfile.php

@@ -9,6 +9,7 @@ final class PhabricatorProjectProfile extends PhabricatorProjectDAO {
   public function loadProfileImageURI() {
     $src_phid = $this->getProfileImagePHID();
 
+    // TODO: (T603) Can we get rid of this and move it to a Query?
     $file = id(new PhabricatorFile())->loadOneWhere('phid = %s', $src_phid);
     if ($file) {
       return $file->getBestURI();

src/applications/repository/worker/commitmessageparser/PhabricatorRepositoryCommitMessageParserWorker.php

@@ -329,9 +329,10 @@ abstract class PhabricatorRepositoryCommitMessageParserWorker
 
     $files = array();
     if ($file_phids) {
-      $files = id(new PhabricatorFile())->loadAllWhere(
+      $files = id(new PhabricatorFileQuery())
-        'phid IN (%Ls)',
+        ->setViewer(PhabricatorUser::getOmnipotentUser())
-        $file_phids);
+        ->withPHIDs($file_phids)
+        ->execute();
       $files = mpull($files, null, 'getPHID');
     }
 

src/applications/xhprof/controller/PhabricatorXHProfProfileController.php

@@ -10,11 +10,12 @@ final class PhabricatorXHProfProfileController
   }
 
   public function processRequest() {
+    $request = $this->getRequest();
 
-    $file = id(new PhabricatorFile())->loadOneWhere(
+    $file = id(new PhabricatorFileQuery())
-      'phid = %s',
+      ->setViewer($request->getUser())
-      $this->phid);
+      ->withPHIDs(array($this->phid))
-
+      ->executeOne();
     if (!$file) {
       return new Aphront404Response();
     }
@@ -25,7 +26,6 @@ final class PhabricatorXHProfProfileController
       throw new Exception("Failed to unserialize XHProf profile!");
     }
 
-    $request = $this->getRequest();
     $symbol = $request->getStr('symbol');
 
     $is_framed = $request->getBool('frame');