imagify / inc / classes / class-imagify-files-recursive-iterator.php

class-imagify-files-recursive-iterator.php in Imagify Image Optimization: Optimize Images | Compress & Convert to WebP/AVIF 1.7, at inc/classes/class-imagify-files-recursive-iterator.php

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1	<?php
2	defined( 'ABSPATH' ) \|\| die( 'Cheatin\' uh?' );
3
4	/**
5	* Class allowing to filter RecursiveDirectoryIterator, to return only files that Imagify can optimize.
6	* It also allows to remove forbidden folders.
7	*
8	* @since 1.7
9	* @author Grégory Viguier
10	*/
11	class Imagify_Files_Recursive_Iterator extends RecursiveFilterIterator {
12
13	/**
14	* Class version.
15	*
16	* @var string
17	* @since 1.7
18	* @author Grégory Viguier
19	*/
20	const VERSION = '1.0';
21
22	/**
23	* Check whether the current element of the iterator is acceptable.
24	*
25	* @since 1.7
26	* @access public
27	* @author Grégory Viguier
28	*
29	* @return bool Returns whether the current element of the iterator is acceptable through this filter.
30	*/
31	public function accept() {
32	static $extensions, $has_extension_method;
33
34	// Forbidden file/folder paths and names.
35	$file_path = $this->current()->getPathname();
36
37	if ( Imagify_Files_Scan::is_path_forbidden( $file_path ) ) {
38	return false;
39	}
40
41	// OK for folders.
42	if ( $this->hasChildren() ) {
43	return true;
44	}
45
46	// Only files.
47	if ( ! $this->current()->isFile() ) {
48	return false;
49	}
50
51	// Only files with the required extension.
52	if ( ! isset( $extensions ) ) {
53	$extensions = array_keys( imagify_get_mime_types() );
54	$extensions = implode( '\|', $extensions );
55	}
56
57	if ( ! isset( $has_extension_method ) ) {
58	// This method was introduced in php 5.3.6.
59	$has_extension_method = method_exists( $this->current(), 'getExtension' );
60	}
61
62	if ( $has_extension_method ) {
63	$file_extension = strtolower( $this->current()->getExtension() );
64	} else {
65	$file_extension = strtolower( pathinfo( $file_path, PATHINFO_EXTENSION ) );
66	}
67
68	return preg_match( '@^' . $extensions . '$@', $file_extension );
69	}
70	}
71