[feature/plupload/cron] Add cronjob for cleaning plupload temporary directory.

PHPBB3-10929

phpBB/config/cron_tasks.yml

@@ -65,6 +65,16 @@ services:
         tags:
             - { name: cron.task }
 
+    cron.task.core.tidy_plupload:
+        class: phpbb_cron_task_core_tidy_plupload
+        arguments:
+            - %core.root_path%
+            - @config
+        calls:
+            - [set_name, [cron.task.core.tidy_plupload]]
+        tags:
+            - { name: cron.task }
+
     cron.task.core.tidy_search:
         class: phpbb\cron\task\core\tidy_search
         arguments:

phpBB/language/en/acp/common.php

@@ -666,6 +666,8 @@ $lang = array_merge($lang, array(
 	'LOG_U_ROLE_EDIT'		=> '<strong>User role edited</strong><br />» %s',
 	'LOG_U_ROLE_REMOVED'	=> '<strong>User role removed</strong><br />» %s',
 
+	'LOG_PLUPLOAD_TIDY_FAILED'		=> '<strong>Unable to open %1$s for tidying, check permissions.</strong><br />Exception: %2$s<br />Trace: %3$s',
+
 	'LOG_PROFILE_FIELD_ACTIVATE'	=> '<strong>Profile field activated</strong><br />» %s',
 	'LOG_PROFILE_FIELD_CREATE'		=> '<strong>Profile field added</strong><br />» %s',
 	'LOG_PROFILE_FIELD_DEACTIVATE'	=> '<strong>Profile field deactivated</strong><br />» %s',

phpBB/phpbb/cron/task/core/tidy_plupload.php

@@ -0,0 +1,122 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* Cron task for cleaning plupload's temporary upload directory.
+*
+* @package phpBB3
+*/
+class phpbb_cron_task_core_tidy_plupload extends phpbb_cron_task_base
+{
+	/**
+	* How old a file must be (in seconds) before it is deleted.
+	* @var int
+	*/
+	protected $max_file_age = 86400;
+
+	/**
+	* How often we run the cron (in seconds).
+	* @var int
+	*/
+	protected $cron_frequency = 86400;
+
+	/**
+	* phpBB root path
+	* @var string
+	*/
+	protected $phpbb_root_path;
+
+	/**
+	* Config object
+	* @var phpbb_config
+	*/
+	protected $config;
+
+	/**
+	* Directory where plupload stores temporary files.
+	* @var string
+	*/
+	protected $plupload_upload_path;
+
+	/**
+	* Constructor.
+	*
+	* @param string $phpbb_root_path The root path
+	* @param phpbb_config $config The config
+	*/
+	public function __construct($phpbb_root_path, phpbb_config $config)
+	{
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->config = $config;
+
+		$this->plupload_upload_path = $this->phpbb_root_path . $this->config['upload_path'] . '/plupload';
+	}
+
+	/**
+	* {@inheritDoc}
+	*/
+	public function run()
+	{
+		// Remove old temporary file (perhaps failed uploads?)
+		$last_valid_timestamp = time() - $this->max_file_age;
+		try
+		{
+			$iterator = new DirectoryIterator($this->plupload_upload_path);
+			foreach ($iterator as $file)
+			{
+				if (strpos($file->getBasename(), $this->config['plupload_salt']) !== 0)
+				{
+					// Skip over any non-plupload files.
+					continue;
+				}
+
+				if ($file->getMTime() < $last_valid_timestamp)
+				{
+					@unlink($file->getPathname());
+				}
+			}
+		}
+		catch (UnexpectedValueException $e)
+		{
+			add_log(
+				'critical',
+				'LOG_PLUPLOAD_TIDY_FAILED',
+				$this->plupload_upload_path,
+				$e->getMessage(),
+				$e->getTraceAsString()
+			);
+		}
+
+		$this->config->set('plupload_last_gc', time(), true);
+	}
+
+	/**
+	* {@inheritDoc}
+	*/
+	public function is_runnable()
+	{
+		return !empty($this->config['plupload_salt']) && is_dir($this->plupload_upload_path);
+	}
+
+	/**
+	* {@inheritDoc}
+	*/
+	public function should_run()
+	{
+		return $this->config['plupload_last_gc'] < time() - $this->cron_frequency;
+	}
+}