diff --git a/src/applications/files/controller/PhabricatorFileCommentController.php b/src/applications/files/controller/PhabricatorFileCommentController.php
--- a/src/applications/files/controller/PhabricatorFileCommentController.php
+++ b/src/applications/files/controller/PhabricatorFileCommentController.php
@@ -2,23 +2,17 @@
 
 final class PhabricatorFileCommentController extends PhabricatorFileController {
 
-  private $id;
-
-  public function willProcessRequest(array $data) {
-    $this->id = idx($data, 'id');
-  }
-
-  public function processRequest() {
-    $request = $this->getRequest();
-    $user = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $id = $request->getURIData('id');
 
     if (!$request->isFormPost()) {
       return new Aphront400Response();
     }
 
     $file = id(new PhabricatorFileQuery())
-      ->setViewer($user)
-      ->withIDs(array($this->id))
+      ->setViewer($viewer)
+      ->withIDs(array($id))
       ->executeOne();
     if (!$file) {
       return new Aphront404Response();
@@ -37,7 +31,7 @@
           ->setContent($request->getStr('comment')));
 
     $editor = id(new PhabricatorFileEditor())
-      ->setActor($user)
+      ->setActor($viewer)
       ->setContinueOnNoEffect($request->isContinueRequest())
       ->setContentSourceFromRequest($request)
       ->setIsPreview($is_preview);
@@ -56,7 +50,7 @@
 
     if ($request->isAjax() && $is_preview) {
       return id(new PhabricatorApplicationTransactionResponse())
-        ->setViewer($user)
+        ->setViewer($viewer)
         ->setTransactions($xactions)
         ->setIsPreview($is_preview);
     } else {
diff --git a/src/applications/files/controller/PhabricatorFileComposeController.php b/src/applications/files/controller/PhabricatorFileComposeController.php
--- a/src/applications/files/controller/PhabricatorFileComposeController.php
+++ b/src/applications/files/controller/PhabricatorFileComposeController.php
@@ -3,9 +3,8 @@
 final class PhabricatorFileComposeController
   extends PhabricatorFileController {
 
-  public function processRequest() {
-    $request = $this->getRequest();
-    $viewer = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
 
     $colors = array(
       'red' => pht('Verbillion'),
diff --git a/src/applications/files/controller/PhabricatorFileDataController.php b/src/applications/files/controller/PhabricatorFileDataController.php
--- a/src/applications/files/controller/PhabricatorFileDataController.php
+++ b/src/applications/files/controller/PhabricatorFileDataController.php
@@ -7,19 +7,15 @@
   private $token;
   private $file;
 
-  public function willProcessRequest(array $data) {
-    $this->phid = $data['phid'];
-    $this->key  = $data['key'];
-    $this->token = idx($data, 'token');
-  }
-
   public function shouldRequireLogin() {
     return false;
   }
 
-  public function processRequest() {
-    $request = $this->getRequest();
-    $viewer = $this->getViewer();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $this->phid = $request->getURIData('phid');
+    $this->key = $request->getURIData('key');
+    $this->token = $request->getURIData('token');
 
     $alt = PhabricatorEnv::getEnvConfig('security.alternate-file-domain');
     $base_uri = PhabricatorEnv::getEnvConfig('phabricator.base-uri');
diff --git a/src/applications/files/controller/PhabricatorFileDeleteController.php b/src/applications/files/controller/PhabricatorFileDeleteController.php
--- a/src/applications/files/controller/PhabricatorFileDeleteController.php
+++ b/src/applications/files/controller/PhabricatorFileDeleteController.php
@@ -2,19 +2,13 @@
 
 final class PhabricatorFileDeleteController extends PhabricatorFileController {
 
-  private $id;
-
-  public function willProcessRequest(array $data) {
-    $this->id = $data['id'];
-  }
-
-  public function processRequest() {
-    $request = $this->getRequest();
-    $user = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $id = $request->getURIData('id');
 
     $file = id(new PhabricatorFileQuery())
-      ->setViewer($user)
-      ->withIDs(array($this->id))
+      ->setViewer($viewer)
+      ->withIDs(array($id))
       ->requireCapabilities(
         array(
           PhabricatorPolicyCapability::CAN_VIEW,
@@ -25,8 +19,8 @@
       return new Aphront404Response();
     }
 
-    if (($user->getPHID() != $file->getAuthorPHID()) &&
-        (!$user->getIsAdmin())) {
+    if (($viewer->getPHID() != $file->getAuthorPHID()) &&
+        (!$viewer->getIsAdmin())) {
       return new Aphront403Response();
     }
 
@@ -36,7 +30,7 @@
     }
 
     $dialog = new AphrontDialogView();
-    $dialog->setUser($user);
+    $dialog->setUser($viewer);
     $dialog->setTitle(pht('Really delete file?'));
     $dialog->appendChild(hsprintf(
       '<p>%s</p>',
diff --git a/src/applications/files/controller/PhabricatorFileDropUploadController.php b/src/applications/files/controller/PhabricatorFileDropUploadController.php
--- a/src/applications/files/controller/PhabricatorFileDropUploadController.php
+++ b/src/applications/files/controller/PhabricatorFileDropUploadController.php
@@ -6,9 +6,8 @@
   /**
    * @phutil-external-symbol class PhabricatorStartup
    */
-  public function processRequest() {
-    $request = $this->getRequest();
-    $viewer = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
 
     // NOTE: Throws if valid CSRF token is not present in the request.
     $request->validateCSRF();
diff --git a/src/applications/files/controller/PhabricatorFileEditController.php b/src/applications/files/controller/PhabricatorFileEditController.php
--- a/src/applications/files/controller/PhabricatorFileEditController.php
+++ b/src/applications/files/controller/PhabricatorFileEditController.php
@@ -2,19 +2,13 @@
 
 final class PhabricatorFileEditController extends PhabricatorFileController {
 
-  private $id;
-
-  public function willProcessRequest(array $data) {
-    $this->id = $data['id'];
-  }
-
-  public function processRequest() {
-    $request = $this->getRequest();
-    $viewer = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $id = $request->getURIData('id');
 
     $file = id(new PhabricatorFileQuery())
       ->setViewer($viewer)
-      ->withIDs(array($this->id))
+      ->withIDs(array($id))
       ->requireCapabilities(
         array(
           PhabricatorPolicyCapability::CAN_VIEW,
diff --git a/src/applications/files/controller/PhabricatorFileInfoController.php b/src/applications/files/controller/PhabricatorFileInfoController.php
--- a/src/applications/files/controller/PhabricatorFileInfoController.php
+++ b/src/applications/files/controller/PhabricatorFileInfoController.php
@@ -2,26 +2,19 @@
 
 final class PhabricatorFileInfoController extends PhabricatorFileController {
 
-  private $phid;
-  private $id;
-
   public function shouldAllowPublic() {
     return true;
   }
 
-  public function willProcessRequest(array $data) {
-    $this->phid = idx($data, 'phid');
-    $this->id = idx($data, 'id');
-  }
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $id = $request->getURIData('id');
+    $phid = $request->getURIData('phid');
 
-  public function processRequest() {
-    $request = $this->getRequest();
-    $user = $request->getUser();
-
-    if ($this->phid) {
+    if ($phid) {
       $file = id(new PhabricatorFileQuery())
-        ->setViewer($user)
-        ->withPHIDs(array($this->phid))
+        ->setViewer($viewer)
+        ->withPHIDs(array($phid))
         ->executeOne();
 
       if (!$file) {
@@ -30,8 +23,8 @@
       return id(new AphrontRedirectResponse())->setURI($file->getInfoURI());
     }
     $file = id(new PhabricatorFileQuery())
-      ->setViewer($user)
-      ->withIDs(array($this->id))
+      ->setViewer($viewer)
+      ->withIDs(array($id))
       ->executeOne();
     if (!$file) {
       return new Aphront404Response();
@@ -40,7 +33,7 @@
     $phid = $file->getPHID();
 
     $header = id(new PHUIHeaderView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->setPolicyObject($file)
       ->setHeader($file->getName());
 
@@ -87,7 +80,7 @@
   }
 
   private function buildTransactionView(PhabricatorFile $file) {
-    $user = $this->getRequest()->getUser();
+    $viewer = $this->getViewer();
 
     $timeline = $this->buildTransactionTimeline(
       $file,
@@ -99,10 +92,10 @@
       ? pht('Add Comment')
       : pht('Question File Integrity');
 
-    $draft = PhabricatorDraft::newFromUserAndKey($user, $file->getPHID());
+    $draft = PhabricatorDraft::newFromUserAndKey($viewer, $file->getPHID());
 
     $add_comment_form = id(new PhabricatorApplicationTransactionCommentView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->setObjectPHID($file->getPHID())
       ->setDraft($draft)
       ->setHeaderText($add_comment_header)
@@ -116,8 +109,7 @@
   }
 
   private function buildActionView(PhabricatorFile $file) {
-    $request = $this->getRequest();
-    $viewer = $request->getUser();
+    $viewer = $this->getViewer();
 
     $id = $file->getID();
 
@@ -184,7 +176,7 @@
     PhabricatorFile $file,
     PhabricatorActionListView $actions) {
     $request = $this->getRequest();
-    $user = $request->getUser();
+    $viewer = $request->getUser();
 
     $properties = id(new PHUIPropertyListView());
     $properties->setActionList($actions);
@@ -193,12 +185,12 @@
     if ($file->getAuthorPHID()) {
       $properties->addProperty(
         pht('Author'),
-        $user->renderHandle($file->getAuthorPHID()));
+        $viewer->renderHandle($file->getAuthorPHID()));
     }
 
     $properties->addProperty(
       pht('Created'),
-      phabricator_datetime($file->getDateCreated(), $user));
+      phabricator_datetime($file->getDateCreated(), $viewer));
 
 
     $finfo = id(new PHUIPropertyListView());
@@ -276,7 +268,7 @@
 
       $attached->addProperty(
         pht('Attached To'),
-        $user->renderHandleList($phids));
+        $viewer->renderHandleList($phids));
     }
 
     if ($file->isViewableImage()) {
@@ -330,7 +322,7 @@
         $box->addPropertyList($chunkinfo, pht('Chunks'));
 
         $chunks = id(new PhabricatorFileChunkQuery())
-          ->setViewer($user)
+          ->setViewer($viewer)
           ->withChunkHandles(array($file->getStorageHandle()))
           ->execute();
         $chunks = msort($chunks, 'getByteStart');
diff --git a/src/applications/files/controller/PhabricatorFileUploadDialogController.php b/src/applications/files/controller/PhabricatorFileUploadDialogController.php
--- a/src/applications/files/controller/PhabricatorFileUploadDialogController.php
+++ b/src/applications/files/controller/PhabricatorFileUploadDialogController.php
@@ -3,12 +3,11 @@
 final class PhabricatorFileUploadDialogController
   extends PhabricatorFileController {
 
-  public function processRequest() {
-    $request = $this->getRequest();
-    $user = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
 
     $dialog = id(new AphrontDialogView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->setTitle(pht('Upload File'))
       ->appendChild(pht(
         'To add files, drag and drop them into the comment text area.'))