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./othercms/ips_4.3.4/applications/core/extensions/core/FileStorage/Imageproxycache.php
<?php
/**
 * @brief        File Storage Extension: Image proxy cache
 * @author        <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
 * @copyright    (c) Invision Power Services, Inc.
 * @license        https://www.invisioncommunity.com/legal/standards/
 * @package        Invision Community
 * @since        7 Nov 2016
 */

namespace IPS\core\extensions\core\FileStorage;

/* 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;
}

/**
 * File Storage Extension: Image proxy cache
 */
class _Imageproxycache
{
   
/**
     * Count stored files
     *
     * @return    int
     */
   
public function count()
    {
        return \
IPS\Db::i()->select( 'COUNT(*)', 'core_image_proxy' )->first();
    }
   
   
/**
     * Move stored files
     *
     * @param    int            $offset                    This will be sent starting with 0, increasing to get all files stored by this extension
     * @param    int            $storageConfiguration    New storage configuration ID
     * @param    int|NULL    $oldConfiguration        Old storage configuration ID
     * @throws    \UnderflowException                    When file record doesn't exist. Indicating there are no more files to move
     * @return    void|int                            An offset integer to use on the next cycle, or nothing
     */
   
public function move( $offset, $storageConfiguration, $oldConfiguration=NULL )
    {
       
$cache = \IPS\Db::i()->select( '*', 'core_image_proxy', array(), 'md5_url', array( $offset, 1 ) )->first();

       
/* Don't move a file if it doesn't have a filename */
       
if( $cache['location'] === NULL )
        {
            return;
        }

        try
        {
           
$file = \IPS\File::get( $oldConfiguration ?: 'core_Imageproxycache', $cache['location'] )->move( $storageConfiguration );

            if ( (string)
$file != $cache['location'] )
            {
                \
IPS\Db::i()->update( 'core_image_proxy', array( 'location' => (string) $file ), array( 'md5_url=?', $cache['md5_url'] ) );
            }
        }
        catch( \
Exception $e )
        {
           
/* Any issues are logged and the \IPS\Db::i()->update not run as the exception is thrown */
       
}
    }

   
/**
     * Check if a file is valid
     *
     * @param    string    $file        The file path to check
     * @return    bool
     */
   
public function isValidFile( $file )
    {
        try
        {
            \
IPS\Db::i()->select( '*', 'core_image_proxy', array( 'location=?', (string) $file ) )->first();

            return
TRUE;
        }
        catch ( \
UnderflowException $e )
        {
            return
FALSE;
        }
    }

   
/**
     * Delete all stored files
     *
     * @return    void
     */
   
public function delete()
    {
        foreach( \
IPS\Db::i()->select( '*', 'core_image_proxy', 'location IS NOT NULL' ) as $cache )
        {
            try
            {
                \
IPS\File::get( 'core_Imageproxycache', $cache['location'] )->delete();
            }
            catch( \
Exception $e ){}
        }
    }
   
   
/**
     * Fix all URLs
     *
     * @param    int            $offset                    This will be sent starting with 0, increasing to get all files stored by this extension
     * @return void
     */
   
public function fixUrls( $offset )
    {
       
$cache = \IPS\Db::i()->select( '*', 'core_image_proxy', array(), 'md5_url', array( $offset, 1 ) )->first();

        try
        {
            if (
$new = \IPS\File::repairUrl( $cache['location'] ) )
            {
                \
IPS\Db::i()->update( 'core_image_proxy', array( 'location' => (string) $new ), array( 'md5_url=?', $cache['location'] ) );
            }
        }
        catch( \
Exception $e )
        {
           
/* Any issues are logged and the \IPS\Db::i()->update not run as the exception is thrown */
       
}
    }
}