image-optimization.php — Image Optimizer – Optimize Images and Convert to WebP or AVIF 1.5.4

image-optimization / image-optimization.php

image-optimization Last commit date

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image-optimization.php

205 lines

1	<?php
2	/**
3	* Plugin Name: Image Optimizer - Compress, Resize and Optimize Images
4	* Description: Automatically resize, optimize, and convert images to WebP and AVIF. Compress images in bulk or on upload to boost your WordPress site performance.
5	* Plugin URI: https://go.elementor.com/wp-repo-description-tab-io-product-page/
6	* Version: 1.5.4
7	* Author: Elementor.com
8	* Author URI: https://go.elementor.com/author-uri-io/
9	* Text Domain: image-optimization
10	* License: GPL-3
11	* License URI: https://www.gnu.org/licenses/gpl-3.0.en.html
12	*/
13
14	if ( ! defined( 'ABSPATH' ) ) {
15	exit; // Exit if accessed directly.
16	}
17
18	define( 'IMAGE_OPTIMIZATION_VERSION', '1.5.4' );
19	define( 'IMAGE_OPTIMIZATION_PATH', plugin_dir_path( __FILE__ ) );
20	define( 'IMAGE_OPTIMIZATION_URL', plugins_url( '/', __FILE__ ) );
21	define( 'IMAGE_OPTIMIZATION_ASSETS_PATH', IMAGE_OPTIMIZATION_PATH . 'assets/' );
22	define( 'IMAGE_OPTIMIZATION_ASSETS_URL', IMAGE_OPTIMIZATION_URL . 'assets/' );
23	define( 'IMAGE_OPTIMIZATION_PLUGIN_FILE', basename( __FILE__ ) );
24
25	/**
26	* ImageOptimization Class
27	*/
28	final class ImageOptimization {
29	private $requirements_errors = [];
30	const REQUIRED_EXTENSIONS = [
31	'exif',
32	'fileinfo',
33	'gd',
34	];
35
36	/**
37	* Constructor
38	*
39	* @access public
40	*/
41	public function __construct() {
42	// Load translation
43	add_action( 'plugins_loaded', [ $this, 'i18n' ] );
44
45	// Init Plugin
46	add_action( 'plugins_loaded', [ $this, 'init' ], -11 );
47	}
48
49	/**
50	* Load plugin localization files.
51	*
52	* Fired by `plugins_loaded` action hook.
53	*
54	* @access public
55	*/
56	public function i18n() {
57	load_plugin_textdomain( 'image-optimization' );
58	}
59
60	/**
61	* Checks if all requirements met to safely start the plugin and renders admin notices
62	* if something is not right.
63	*
64	* @access public
65	* @return bool
66	*/
67	public function plugin_can_start(): bool {
68	$can_start = true;
69
70	if ( ! version_compare( PHP_VERSION, '7.4', '>=' ) ) {
71	$this->requirements_errors[] = sprintf(
72	'%1$s <a href="https://go.elementor.com/wp-dash-update-php/" target="_blank">%2$s</a>',
73	sprintf(
74	/* translators: %s: PHP version. */
75	esc_html__( 'Update to PHP version %s and get back to optimizing!', 'image-optimization' ),
76	'7.4',
77	),
78	esc_html__( 'Show me how', 'image-optimization' )
79	);
80
81	$can_start = false;
82	}
83
84	if ( count( $this->get_missing_extensions_list() ) ) {
85	$missed_extensions = $this->get_missing_extensions_list();
86
87	$this->requirements_errors[] = sprintf(
88	esc_html__( 'The following required PHP extensions are missing: %s', 'image-optimization' ),
89	implode( ', ', $missed_extensions )
90	);
91
92	$can_start = false;
93	}
94
95	if ( ! $this->is_db_json_supported() ) {
96	$this->requirements_errors[] = sprintf(
97	/* translators: 1: MySQL minimum version. 2: MariaDB minimum version. */
98	esc_html__(
99	'The database server version is outdated. Update to MySQL version %1$s or MariaDB version %2$s.',
100	'image-optimization'
101	),
102	'5.7',
103	'10.2'
104	);
105
106	$can_start = false;
107	}
108
109	$upload_dir = wp_upload_dir();
110
111	if ( ! wp_is_writable( $upload_dir['basedir'] ) ) {
112	$this->requirements_errors[] = esc_html__(
113	'Your site doesn’t have the necessary read/write permissions for your file system to use this plugin. Please contact your hosting provider to resolve this matter.',
114	'image-optimization',
115	);
116
117	$can_start = false;
118	}
119
120	return $can_start;
121	}
122
123	/**
124	* Retrieve an array of missing extensions mentioned in self::REQUIRED_EXTENSIONS.
125	*
126	* @access private
127	* @return array Missing extensions.
128	*/
129	private function get_missing_extensions_list(): array {
130	$output = [];
131
132	foreach ( self::REQUIRED_EXTENSIONS as $extension ) {
133	if ( ! extension_loaded( $extension ) ) {
134	$output[] = $extension;
135	}
136	}
137
138	return $output;
139	}
140
141	public function is_db_json_supported(): bool {
142	global $wpdb;
143
144	$result = $wpdb->query("
145	SELECT JSON_EXTRACT('[1, 2]', '$[1]');
146	");
147
148	return false !== $result;
149	}
150
151	/**
152	* Renders an admin notice if the setup did not meet requirements.
153	*
154	* Fired by `admin_notices` action hook.
155	*
156	* @access public
157	* @return void
158	*/
159	public function add_requirements_error() {
160	$message = sprintf(
161	'<h3>%s</h3>',
162	esc_html__( 'Image Optimizer isn’t running because:', 'image-optimization' )
163	);
164
165	$message .= '<ul>';
166
167	foreach ( $this->requirements_errors as $error ) {
168	$message .= sprintf(
169	'%s%s%s',
170	'<li>',
171	$error,
172	'</li>'
173	);
174	}
175
176	$message .= '</ul>';
177
178	$html_message = sprintf( '<div class="error">%s</div>', wpautop( $message ) );
179
180	echo wp_kses_post( $html_message );
181	}
182
183	/**
184	* Initialize the plugin.
185	*
186	* Validates that PHP version is sufficient. Checks for basic plugin requirements,
187	* if one check fail don't continue, if all check have passed include the plugin class.
188	*
189	* Fired by `plugins_loaded` action hook.
190	*
191	* @access public
192	*/
193	public function init() {
194	if ( ! $this->plugin_can_start() ) {
195	add_action( 'admin_notices', [ $this, 'add_requirements_error' ] );
196	} else {
197	// Once we get here, We have passed all validation checks, so we can safely include our plugin
198	require_once 'plugin.php';
199	}
200	}
201	}
202
203	// Instantiate ImageOptimization.
204	new ImageOptimization();
205