Version 4.1.19

applications/core/tasks/imageproxy.php

@@ -0,0 +1,81 @@
+<?php
+/**
+ * @brief		imageproxy Task
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - 2016 Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Community Suite
+ * @since		20 Nov 2015
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPS\core\tasks;
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
+	exit;
+}
+
+/**
+ * imageproxy Task
+ */
+class _imageproxy extends \IPS\Task
+{
+	/**
+	 * Execute
+	 *
+	 * If ran successfully, should return anything worth logging. Only log something
+	 * worth mentioning (don't log "task ran successfully"). Return NULL (actual NULL, not '' or 0) to not log (which will be most cases).
+	 * If an error occurs which means the task could not finish running, throw an \IPS\Task\Exception - do not log an error as a normal log.
+	 * Tasks should execute within the time of a normal HTTP request.
+	 *
+	 * @return	mixed	Message to log or NULL
+	 * @throws	\IPS\Task\Exception
+	 */
+	public function execute()
+	{
+		if ( !\IPS\Settings::i()->remote_image_proxy or !\IPS\Settings::i()->image_proxy_cache_period )
+		{
+			\IPS\Db::i()->update( 'core_tasks', array( 'enabled' => 0 ), array( '`key`=?', 'imageproxy' ) );
+			return NULL;
+		}
+		
+		$this->runUntilTimeout(function()
+		{
+			$select = \IPS\Db::i()->select( 'location', 'core_image_proxy', array( 'cache_time<?', \IPS\DateTime::create()->sub( new \DateInterval( 'P' . \IPS\Settings::i()->image_proxy_cache_period . 'D' ) )->getTimestamp() ), 'cache_time ASC', 10 );
+			if ( !$select->count() )
+			{
+				return FALSE;
+			}
+			
+			foreach ( $select as $location )
+			{
+				try
+				{
+					\IPS\File::get( 'core_Imageproxycache', $location )->delete();
+				}
+				catch ( \Exception $e ) { }
+				
+				\IPS\Db::i()->delete( 'core_image_proxy', array( 'location=?', $location ) );
+			}
+			
+			return TRUE;
+		});
+	}
+	
+	/**
+	 * Cleanup
+	 *
+	 * If your task takes longer than 15 minutes to run, this method
+	 * will be called before execute(). Use it to clean up anything which
+	 * may not have been done
+	 *
+	 * @return	void
+	 */
+	public function cleanup()
+	{
+		
+	}
+}