AlkantarClanX12
Your IP : 216.73.217.24
<?php if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Class NF_FU_Helper
*
* The Static Helper Class
*
* Provides helper functionality for File Uploads
*/
final class NF_FU_Helper {
public static function random_string( $length = 10 ) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$random_string = '';
for ( $i = 0; $i < $length; $i++ ) {
$random_string .= $characters[ rand( 0, strlen( $characters ) - 1 ) ];
}
return $random_string;
}
/**
* Get the max chunk size for uploads to the server and services.
*
* @return bool|mixed|void
*/
public static function get_max_chunk_size() {
return apply_filters( 'ninja_forms_upload_max_chunk_size', round( self::max_upload_bytes_int() * 0.9 ) );
}
/**
* Get the lowest integer in MB for upload max size.
*
* @return float|int|mixed
*/
public static function max_upload_bytes_int() {
$u_bytes = wp_convert_hr_to_bytes( ini_get( 'upload_max_filesize' ) );
$p_bytes = wp_convert_hr_to_bytes( ini_get( 'post_max_size' ) );
return min( $u_bytes, $p_bytes );
}
/**
* Get the lowest integer in MB for upload max size.
*
* @return float|int|mixed
*/
public static function max_upload_mb_int() {
$max = self::max_upload_bytes_int();
$max = $max / MB_IN_BYTES;
return $max;
}
/**
* Fix for overflowing signed 32 bit integers,
* works for sizes up to 2^32-1 bytes (4 GiB - 1):
*
* @param $size
*
* @return float
*/
public static function fix_integer_overflow( $size ) {
if ( $size < 0 ) {
$size += 2.0 * ( PHP_INT_MAX + 1 );
}
return $size;
}
public static function get_file_size( $file_path, $clear_stat_cache = false ) {
if ( $clear_stat_cache ) {
if ( version_compare( PHP_VERSION, '5.3.0' ) >= 0 ) {
clearstatcache( true, $file_path );
} else {
clearstatcache();
}
}
return self::fix_integer_overflow( filesize( $file_path ) );
}
/**
* Are we on the FU page?
*
* @param string $tab
* @param array $args
*
* @return bool
*/
public static function is_page( $tab = '', $args = array() ) {
global $pagenow;
if ( 'admin.php' !== $pagenow ) {
return false;
}
$defaults = array( 'page' => 'ninja-forms-uploads' );
if ( $tab ) {
$defaults['tab'] = $tab;
}
$args = array_merge( $args, $defaults );
foreach ( $args as $key => $value ) {
if ( ! isset( $_GET[ $key ] ) ) {
return false;
}
if ( false !== $value && $value !== $_GET[ $key ] ) {
return false;
}
}
return true;
}
public static function remove_directory_from_file( $file ) {
$file_dir = dirname( $file );
if ( $file_dir != '.' ) {
$file = str_replace( $file_dir, '', $file ); // Stop traversal exploits
}
$file = ltrim( $file, DIRECTORY_SEPARATOR );
return $file;
}
} // End Class WPN_Helper