Allow files to be deleted

Summary:
A couple of people mentioned that they've had users accidentally upload
sensitive files. Allow files to be deleted.

(At some point it might be nice to keep the file handle around and log who
deleted it, but this addresses the immediate problem without needing too much
work.)

Test Plan: Deleted some files.

Reviewers: btrahan, jungejason

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T780

Differential Revision: https://secure.phabricator.com/D1423

src/__phutil_library_map__.php

@@ -469,6 +469,7 @@ phutil_register_library_map(array(
     'PhabricatorFileAltViewController' => 'applications/files/controller/altview',
     'PhabricatorFileController' => 'applications/files/controller/base',
     'PhabricatorFileDAO' => 'applications/files/storage/base',
+    'PhabricatorFileDeleteController' => 'applications/files/controller/delete',
     'PhabricatorFileDropUploadController' => 'applications/files/controller/dropupload',
     'PhabricatorFileImageMacro' => 'applications/files/storage/imagemacro',
     'PhabricatorFileListController' => 'applications/files/controller/list',
@@ -1150,6 +1151,7 @@ phutil_register_library_map(array(
     'PhabricatorFileAltViewController' => 'PhabricatorFileController',
     'PhabricatorFileController' => 'PhabricatorController',
     'PhabricatorFileDAO' => 'PhabricatorLiskDAO',
+    'PhabricatorFileDeleteController' => 'PhabricatorFileController',
     'PhabricatorFileDropUploadController' => 'PhabricatorFileController',
     'PhabricatorFileImageMacro' => 'PhabricatorFileDAO',
     'PhabricatorFileListController' => 'PhabricatorFileController',

src/aphront/default/configuration/AphrontDefaultApplicationConfiguration.php

@@ -54,6 +54,7 @@ class AphrontDefaultApplicationConfiguration
         'filter/(?P<filter>\w+)/$' => 'PhabricatorFileListController',
         'upload/$' => 'PhabricatorFileUploadController',
         'dropupload/$' => 'PhabricatorFileDropUploadController',
+        'delete/(?P<id>\d+)/$' => 'PhabricatorFileDeleteController',
         '(?P<view>info)/(?P<phid>[^/]+)/' => 'PhabricatorFileViewController',
         '(?P<view>view)/(?P<phid>[^/]+)/' => 'PhabricatorFileViewController',
         '(?P<view>download)/(?P<phid>[^/]+)/' => 'PhabricatorFileViewController',

src/applications/files/controller/delete/PhabricatorFileDeleteController.php

@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class PhabricatorFileDeleteController extends PhabricatorFileController {
+
+  private $id;
+
+  public function willProcessRequest(array $data) {
+    $this->id = $data['id'];
+  }
+
+  public function processRequest() {
+
+    $request = $this->getRequest();
+    $user = $request->getUser();
+
+    $file = id(new PhabricatorFile())->loadOneWhere(
+      'id = %d',
+      $this->id);
+    if (!$file) {
+      return new Aphront404Response();
+    }
+
+    if (($user->getPHID() != $file->getAuthorPHID()) &&
+        (!$user->getIsAdmin())) {
+      return new Aphront403Response();
+    }
+
+    if ($request->isFormPost()) {
+      $file->delete();
+      return id(new AphrontRedirectResponse())->setURI('/file/');
+    }
+
+    $dialog = new AphrontDialogView();
+    $dialog->setUser($user);
+    $dialog->setTitle('Really delete file?');
+    $dialog->appendChild(
+      "<p>Permanently delete '".phutil_escape_html($file->getName())."'? This ".
+      "action can not be undone.");
+    $dialog->addSubmitButton('Delete');
+    $dialog->addCancelButton($file->getInfoURI());
+
+    return id(new AphrontDialogResponse())->setDialog($dialog);
+  }
+}

src/applications/files/controller/delete/__init__.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'aphront/response/403');
+phutil_require_module('phabricator', 'aphront/response/404');
+phutil_require_module('phabricator', 'aphront/response/dialog');
+phutil_require_module('phabricator', 'aphront/response/redirect');
+phutil_require_module('phabricator', 'applications/files/controller/base');
+phutil_require_module('phabricator', 'applications/files/storage/file');
+phutil_require_module('phabricator', 'view/dialog');
+
+phutil_require_module('phutil', 'markup');
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('PhabricatorFileDeleteController.php');

src/applications/files/controller/view/PhabricatorFileViewController.php

@@ -109,12 +109,21 @@ class PhabricatorFileViewController extends PhabricatorFileController {
 
     $form = new AphrontFormView();
 
+    $submit = new AphrontFormSubmitControl();
+
     if ($file->isViewableInBrowser()) {
       $form->setAction($file->getViewURI());
-      $button_name = 'View File';
+      $submit->setValue('View File');
     } else {
       $form->setAction('/file/download/'.$file->getPHID().'/');
-      $button_name = 'Download File';
+      $submit->setValue('Download File');
+    }
+
+    if (($user->getPHID() == $file->getAuthorPHID()) ||
+        ($user->getIsAdmin())) {
+      $submit->addCancelButton(
+        '/file/delete/'.$file->getID().'/',
+        'Delete File');
     }
 
     $file_id = 'F'.$file->getID();
@@ -171,8 +180,7 @@ class PhabricatorFileViewController extends PhabricatorFileController {
           ->setName('storageHandle')
           ->setValue($file->getStorageHandle()))
       ->appendChild(
-        id(new AphrontFormSubmitControl())
-          ->setValue($button_name));
+        id($submit));
 
     $panel = new AphrontPanelView();
     $panel->setHeader('File Info - '.$file->getName());