wp-optimize / webp / class-wpo-webp-test-run.php

class-wpo-webp-test-run.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 4.5.3, at webp/class-wpo-webp-test-run.php

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1	<?php
2
3	if (!defined('ABSPATH')) die('No direct access allowed');
4
5	if (!class_exists('WPO_WebP_Test_Run')) :
6	/**
7	* Test run
8	*/
9	class WPO_WebP_Test_Run {
10
11	/**
12	* List of working coverters
13	*
14	* @var array
15	*/
16	private static $working_converters = array();
17
18	/**
19	* Errors array
20	*
21	* @var array
22	*/
23	private static $errors = array();
24
25	/**
26	* Get a list of converters that don't use shell functions
27	*
28	* @return array
29	*/
30	public static function get_converters_without_shell() {
31	return apply_filters('wpo_converters_without_shell', array(
32	'vips',
33	'wpc',
34	'ewww',
35	'imagick',
36	'gmagick',
37	'gd',
38	));
39	}
40
41	/**
42	* Get a list of converters that use shell functions
43	*
44	* @return array
45	*/
46	public static function get_converters_with_shell() {
47	return apply_filters('wpo_converters_with_shell', array(
48	// 'cwebp',
49	'imagemagick',
50	'graphicsmagick',
51	'ffmpeg',
52	));
53	}
54
55	/**
56	* Get an array of working and non-working converters list
57	*
58	* @return array
59	*/
60	public static function get_converter_status() {
61
62	$converters_without_shell = self::get_converters_without_shell();
63	$converters_with_shell = self::get_converters_with_shell();
64
65	self::$working_converters = array();
66	self::$errors = array();
67
68	self::try_converters($converters_without_shell);
69
70	if (empty(self::$working_converters)) {
71	if (WP_Optimize_WebP::get_instance()->shell_functions_available()) {
72	self::try_converters($converters_with_shell);
73	} else {
74	// If no working converters that don’t require shell access are found,
75	// and shell functions are unavailable, store the errors.
76	foreach ($converters_with_shell as $converter_id) {
77	self::$errors[$converter_id] = __('Required WebP shell functions are not available on the server.', 'wp-optimize');
78	}
79	}
80	}
81
82	return array(
83	'working_converters' => self::$working_converters,
84	'errors' => self::$errors,
85	);
86	}
87
88	/**
89	* Tries each converter from the list to convert to WebP
90	*
91	* @param array $converters
92	* @return void
93	*/
94	private static function try_converters($converters) {
95	$source = WPO_PLUGIN_MAIN_PATH . 'images/logo/wpo_logo_small.png';
96	$upload_dir = wp_upload_dir();
97	$destination = $upload_dir['basedir']. '/wpo/images/wpo_logo_small.png.webp';
98
99	foreach ($converters as $converter_id) {
100	$conversion_result = self::try_converter($converter_id, $source, $destination, $upload_dir['basedir']);
101
102	if (true === $conversion_result) {
103	self::$working_converters[] = $converter_id;
104	} else {
105	self::$errors[$converter_id] = $conversion_result;
106	}
107	}
108	}
109
110	/**
111	* Tries to convert to WebP and returns true if the conversion finishes successfully.
112	*
113	* @param string $converter_id
114	* @param string $source
115	* @param string $destination
116	* @param string $target_dir
117	* @return true\|string
118	*/
119	private static function try_converter($converter_id, $source, $destination, $target_dir) {
120	try {
121	WPO_WebP_Utils::perform_webp_conversion($converter_id, $source, $destination);
122	// Copying source file to `uploads` folder. To be used test redirection
123	// We're doing it here, to make sure folders already exists `/wpo/images/`
124	copy($source, $target_dir. '/wpo/images/wpo_logo_small.png');
125	return true;
126	} catch (\Exception $e) {
127	return $e->getMessage();
128	}
129	}
130	}
131
132	endif;
133