<?php
/**
* @brief File Storage Extension: FileField
* @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
* @subpackage Downloads
* @since 29 Aug 2014
*/
namespace IPS\downloads\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: FileField
*/
class _FileField
{
/**
* Count stored files
*
* @return int
*/
public function count()
{
$count = 0;
foreach( \IPS\Db::i()->select( '*', 'downloads_cfields', array( 'cf_type=?', 'Upload' ) ) AS $field )
{
$count += \IPS\Db::i()->select( 'COUNT(*)', 'downloads_ccontent', array( "field_{$field['cf_id']}<>? OR field_{$field['cf_id']} IS NOT NULL", '' ) )->first();
}
return $count;
}
/**
* 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 FALSE when there are no more files to move
*/
public function move( $offset, $storageConfiguration, $oldConfiguration=NULL )
{
if( !\IPS\Db::i()->select( 'COUNT(*)', 'downloads_cfields', array( 'cf_type=?', 'Upload' ) )->first() )
{
throw new \Underflowexception;
}
foreach( \IPS\Db::i()->select( '*', 'downloads_cfields', array( 'cf_type=?', 'Upload' ) ) AS $field )
{
$cfield = \IPS\Db::i()->select( '*', 'downloads_ccontent', array( "field_{$field['cf_id']}<>? OR field_{$field['cf_id']} IS NOT NULL", '' ), 'file_id', array( $offset, 1 ) )->first();
try
{
$file = \IPS\File::get( $oldConfiguration ?: 'downloads_FileField', $cfield[ 'field_' . $field['cf_id'] ] )->move( $storageConfiguration );
if ( (string) $file != $cfield[ 'field_' . $field['cf_id'] ] )
{
\IPS\Db::i()->update( 'downloads_ccontent', array( "field_{$field['cf_id']}=?", (string) $file ), array( 'file_id=?', $cfield['file_id'] ) );
}
}
catch( \Exception $e )
{
/* Any issues are logged */
}
}
}
/**
* 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 )
{
if( !\IPS\Db::i()->select( 'COUNT(*)', 'downloads_cfields', array( 'cf_type=?', 'Upload' ) )->first() )
{
throw new \Underflowexception;
}
foreach( \IPS\Db::i()->select( '*', 'downloads_cfields', array( 'cf_type=?', 'Upload' ) ) AS $field )
{
$cfield = \IPS\Db::i()->select( '*', 'downloads_ccontent', array( "field_{$field['cf_id']}<>? OR field_{$field['cf_id']} IS NOT NULL", '' ), 'file_id', array( $offset, 1 ) )->first();
if ( $new = \IPS\File::repairUrl( $cfield[ 'field_' . $field['cf_id'] ] ) )
{
\IPS\Db::i()->update( 'downloads_ccontent', array( "field_{$field['cf_id']}=?", $new ), array( 'file_id=?', $cfield['file_id'] ) );
}
}
}
/**
* Check if a file is valid
*
* @param string $file The file path to check
* @return bool
*/
public function isValidFile( $file )
{
$valid = FALSE;
foreach( \IPS\Db::i()->select( '*', 'downloads_cfields', array( 'cf_type=?', 'Upload' ) ) AS $field )
{
try
{
\IPS\Db::i()->select( '*', 'downloads_ccontent', array( "field_{$field['cf_id']}=?", (string) $file ) )->first();
$valid = TRUE;
break;
}
catch( \UnderflowException $e ) {}
}
return $valid;
}
/**
* Delete all stored files
*
* @return void
*/
public function delete()
{
foreach( \IPS\Db::i()->select( '*', 'downloads_cfields', array( 'cf_type=?', 'Upload' ) ) AS $field )
{
try
{
foreach( \IPS\Db::i()->select( '*', 'downloads_ccontent', array( "field_{$field['cf_id']}<>? OR field_{$field['cf_id']} IS NOT NULL", '' ) ) as $cfield )
{
\IPS\File::get( 'downloads_FileField', $cfield[ 'field_' . $field['cf_id'] ] )->delete();
}
}
catch( \Exception $e ){}
}
}
}