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