From c80522ed63e3225ce1f1353581220c3296ed0590 Mon Sep 17 00:00:00 2001
From: Robin Appelman <icewind@owncloud.com>
Date: Mon, 2 Mar 2015 15:25:50 +0100
Subject: [PATCH] Expire files from the trash in the background

---
 apps/files_trashbin/command/expire.php | 55 ++++++++++++++++++++++++++
 apps/files_trashbin/lib/trashbin.php   | 33 +++++++++-------
 apps/files_trashbin/tests/trashbin.php |  2 +
 3 files changed, 75 insertions(+), 15 deletions(-)
 create mode 100644 apps/files_trashbin/command/expire.php

diff --git a/apps/files_trashbin/command/expire.php b/apps/files_trashbin/command/expire.php
new file mode 100644
index 00000000000..842e061eeb9
--- /dev/null
+++ b/apps/files_trashbin/command/expire.php
@@ -0,0 +1,55 @@
+<?php
+/**
+ * ownCloud - trash bin
+ *
+ * @author Robin Appelman
+ * @copyright 2015 Robin Appelman icewind@owncloud.com
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Files_Trashbin\Command;
+
+use OC\Command\FileAccess;
+use OCA\Files_Trashbin\Trashbin;
+use OCP\Command\ICommand;
+
+class Expire implements ICommand {
+	use FileAccess;
+
+	/**
+	 * @var string
+	 */
+	private $user;
+
+	/**
+	 * @var int
+	 */
+	private $trashBinSize;
+
+	/**
+	 * @param string $user
+	 * @param int $trashBinSize
+	 */
+	function __construct($user, $trashBinSize) {
+		$this->user = $user;
+		$this->trashBinSize = $trashBinSize;
+	}
+
+	public function handle() {
+		\OC_Util::setupFS($this->user);
+		Trashbin::expire($this->trashBinSize, $this->user);
+	}
+}
diff --git a/apps/files_trashbin/lib/trashbin.php b/apps/files_trashbin/lib/trashbin.php
index 8ce6d668d66..76395cc95d0 100644
--- a/apps/files_trashbin/lib/trashbin.php
+++ b/apps/files_trashbin/lib/trashbin.php
@@ -23,6 +23,7 @@
 namespace OCA\Files_Trashbin;
 
 use OC\Files\Filesystem;
+use OCA\Files_Trashbin\Command\Expire;
 
 class Trashbin {
 	// how long do we keep files in the trash bin if no other value is defined in the config file (unit: days)
@@ -204,13 +205,13 @@ class Trashbin {
 		}
 
 		$userTrashSize += $size;
-		$userTrashSize -= self::expire($userTrashSize, $user);
+		self::scheduleExpire($userTrashSize, $user);
 
 		// if owner !== user we also need to update the owners trash size
 		if ($owner !== $user) {
 			$ownerTrashSize = self::getTrashbinSize($owner);
 			$ownerTrashSize += $size;
-			$ownerTrashSize -= self::expire($ownerTrashSize, $owner);
+			self::scheduleExpire($ownerTrashSize, $owner);
 		}
 
 		return ($sizeOfAddedFiles === false) ? false : true;
@@ -682,26 +683,18 @@ class Trashbin {
 		$freeSpace = self::calculateFreeSpace($size, $user);
 
 		if ($freeSpace < 0) {
-			self::expire($size, $user);
+			self::scheduleExpire($size, $user);
 		}
 	}
 
 	/**
 	 * clean up the trash bin
 	 *
-	 * @param int $trashbinSize current size of the trash bin
+	 * @param int $trashBinSize current size of the trash bin
 	 * @param string $user
-	 * @return int size of expired files
 	 */
-	private static function expire($trashbinSize, $user) {
-
-		// let the admin disable auto expire
-		$autoExpire = \OC_Config::getValue('trashbin_auto_expire', true);
-		if ($autoExpire === false) {
-			return 0;
-		}
-
-		$availableSpace = self::calculateFreeSpace($trashbinSize, $user);
+	public static function expire($trashBinSize, $user) {
+		$availableSpace = self::calculateFreeSpace($trashBinSize, $user);
 		$size = 0;
 
 		$retention_obligation = \OC_Config::getValue('trashbin_retention_obligation', self::DEFAULT_RETENTION_OBLIGATION);
@@ -718,8 +711,18 @@ class Trashbin {
 
 		// delete files from trash until we meet the trash bin size limit again
 		$size += self::deleteFiles(array_slice($dirContent, $count), $user, $availableSpace);
+	}
 
-		return $size;
+	/**@param int $trashBinSize current size of the trash bin
+	 * @param string $user
+	 */
+	private static function scheduleExpire($trashBinSize, $user) {
+		// let the admin disable auto expire
+		$autoExpire = \OC_Config::getValue('trashbin_auto_expire', true);
+		if ($autoExpire === false) {
+			return;
+		}
+		\OC::$server->getCommandBus()->push(new Expire($user, $trashBinSize));
 	}
 
 	/**
diff --git a/apps/files_trashbin/tests/trashbin.php b/apps/files_trashbin/tests/trashbin.php
index 17e38015868..8bc52cc9192 100644
--- a/apps/files_trashbin/tests/trashbin.php
+++ b/apps/files_trashbin/tests/trashbin.php
@@ -210,6 +210,8 @@ class Test_Trashbin extends \Test\TestCase {
 
 		\OC\Files\Filesystem::unlink($folder . 'user1-4.txt');
 
+		$this->runCommands();
+
 		$filesInTrashUser2AfterDelete = OCA\Files_Trashbin\Helper::getTrashFiles('/', self::TEST_TRASHBIN_USER2);
 
 		// user2-1.txt should have been expired
-- 
2.39.5