imagify / inc / classes / class-imagify-requirements-check.php

class-imagify-requirements-check.php in Imagify Image Optimization: Optimize Images | Compress & Convert to WebP/AVIF 2.3.0, at inc/classes/class-imagify-requirements-check.php

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1	<?php
2	/**
3	* Class to check if the current WordPress and PHP versions meet our requirements.
4	*
5	* @since 1.9
6	* @source Based on class WP_Rocket_Requirements_Check from WP Rocket plugin.
7	* @author Grégory Viguier
8	* @author Remy Perona
9	*/
10	class Imagify_Requirements_Check {
11	/**
12	* Plugin Name.
13	*
14	* @var string
15	* @since 1.9
16	* @access private
17	* @author Grégory Viguier
18	*/
19	private $plugin_name;
20
21	/**
22	* Plugin filepath.
23	*
24	* @var string
25	* @since 1.9
26	* @access private
27	* @author Grégory Viguier
28	*/
29	private $plugin_file;
30
31	/**
32	* Plugin version.
33	*
34	* @var string
35	* @since 1.9
36	* @access private
37	* @author Grégory Viguier
38	*/
39	private $plugin_version;
40
41	/**
42	* Last plugin version handling the current version of WP.
43	*
44	* @var string
45	* @since 1.9
46	* @access private
47	* @author Grégory Viguier
48	*/
49	private $wp_last_version;
50
51	/**
52	* Last plugin version handling the current version of PHP.
53	*
54	* @var string
55	* @since 1.9
56	* @access private
57	* @author Grégory Viguier
58	*/
59	private $php_last_version;
60
61	/**
62	* Required WordPress version.
63	*
64	* @var string
65	* @since 1.9
66	* @access private
67	* @author Grégory Viguier
68	*/
69	private $wp_version;
70
71	/**
72	* Required PHP version.
73	*
74	* @var string
75	* @since 1.9
76	* @access private
77	* @author Grégory Viguier
78	*/
79	private $php_version;
80
81	/**
82	* Constructor.
83	*
84	* @since 1.9
85	* @access public
86	* @author Grégory Viguier
87	*
88	* @param array $args {
89	* Arguments to populate the class properties.
90	*
91	* @type string $plugin_name Plugin name.
92	* @type string $plugin_file Plugin filepath.
93	* @type string $plugin_version Plugin version.
94	* @type string $wp_last_version Last plugin version handling the current version of WP.
95	* @type string $php_last_version Last plugin version handling the current version of PHP.
96	* @type string $wp_version Required WordPress version.
97	* @type string $php_version Required PHP version.
98	* }
99	*/
100	public function __construct( $args ) {
101	foreach ( [ 'plugin_name', 'plugin_file', 'plugin_version', 'wp_last_version', 'php_last_version', 'wp_version', 'php_version' ] as $setting ) {
102	if ( isset( $args[ $setting ] ) ) {
103	$this->$setting = $args[ $setting ];
104	}
105	}
106
107	if ( empty( $this->wp_last_version ) ) {
108	$this->wp_last_version = '1.6.14.2';
109	}
110
111	if ( empty( $this->php_last_version ) ) {
112	$this->php_last_version = '1.8.4.1';
113	}
114	}
115
116	/**
117	* Check if all requirements are ok, if not, display a notice and the rollback.
118	*
119	* @since 1.9
120	* @access public
121	* @author Grégory Viguier
122	*
123	* @return bool
124	*/
125	public function check() {
126	if ( ! $this->php_passes() \|\| ! $this->wp_passes() ) {
127	add_action( 'admin_notices', [ $this, 'print_notice' ] );
128	add_action( 'admin_post_imagify_rollback', [ $this, 'rollback' ] );
129
130	return false;
131	}
132
133	return true;
134	}
135
136	/**
137	* Check if the current PHP version is equal or superior to the required PHP version.
138	*
139	* @since 1.9
140	* @access private
141	* @author Grégory Viguier
142	*
143	* @return bool
144	*/
145	private function php_passes() {
146	return version_compare( PHP_VERSION, $this->php_version ) >= 0;
147	}
148
149	/**
150	* Check if the current WordPress version is equal or superior to the required PHP version.
151	*
152	* @since 1.9
153	* @access private
154	* @author Grégory Viguier
155	*
156	* @return bool
157	*/
158	private function wp_passes() {
159	global $wp_version;
160
161	return version_compare( $wp_version, $this->wp_version ) >= 0;
162	}
163
164	/**
165	* Get the last version of the plugin that can run with the current WP and PHP versions.
166	*
167	* @since 1.9
168	* @access private
169	* @author Grégory Viguier
170	*
171	* @return string
172	*/
173	private function get_last_version() {
174	$last_version = '';
175
176	if ( ! $this->php_passes() ) {
177	$last_version = $this->php_last_version;
178	}
179
180	if ( ! $this->wp_passes() ) {
181	$last_version = ! $last_version \|\| version_compare( $last_version, $this->wp_last_version ) > 0 ? $this->wp_last_version : $last_version;
182	}
183
184	return $last_version;
185	}
186
187	/**
188	* Tell if the current user can rollback.
189	*
190	* @since 1.9
191	* @access private
192	* @author Grégory Viguier
193	*
194	* @return bool
195	*/
196	private function current_user_can() {
197	$describer = 'manage';
198	$capacity = $this->is_active_for_network() ? 'manage_network_options' : 'manage_options';
199	// This filter is documented in classes/Context/AbstractContext.php.
200	$capacity = (string) apply_filters( 'imagify_capacity', $capacity, $describer, 'wp' );
201
202	$user_can = current_user_can( $capacity );
203	// This filter is documented in classes/Context/AbstractContext.php.
204	$user_can = (bool) apply_filters( 'imagify_current_user_can', $user_can, $capacity, $describer, null, 'wp' );
205
206	return $user_can;
207	}
208
209	/**
210	* Tell if Imagify is activated on the network.
211	*
212	* @since 1.9
213	* @access private
214	* @author Grégory Viguier
215	*
216	* return bool True if Imagify is activated on the network.
217	*/
218	private function is_active_for_network() {
219	if ( ! is_multisite() ) {
220	return false;
221	}
222
223	if ( ! function_exists( 'is_plugin_active_for_network' ) ) {
224	require_once ABSPATH . 'wp-admin/includes/plugin.php';
225	}
226
227	return is_plugin_active_for_network( plugin_basename( $this->plugin_file ) );
228	}
229
230	/**
231	* Warn if PHP version is less than 5.4 and offers to rollback.
232	*
233	* @since 1.9
234	*/
235	public function print_notice() {
236	if ( ! $this->current_user_can() ) {
237	return;
238	}
239
240	$message = [];
241	$required = [];
242	$rollback_url = wp_nonce_url( admin_url( 'admin-post.php?action=imagify_rollback' ), 'imagify_rollback' );
243
244	if ( ! $this->php_passes() ) {
245	/* translators: %1$s = Plugin name, %2$s = PHP version required. */
246	$message[] = sprintf( esc_html__( 'To use this %1$s version, please ask your web host how to upgrade your server to PHP %2$s or higher.', 'imagify' ), $this->plugin_name, $this->php_version );
247	$required[] = 'PHP ' . $this->php_version;
248	}
249
250	if ( ! $this->wp_passes() ) {
251	/* translators: %1$s = Plugin name, %2$s = WordPress version required. */
252	$message[] = sprintf( esc_html__( 'To use this %1$s version, please upgrade WordPress to version %2$s or higher.', 'imagify' ), $this->plugin_name, $this->wp_version );
253	$required[] = 'WordPress ' . $this->wp_version;
254	}
255
256	$message = '<p>' . implode( '<br/>', $message ) . "</p>\n";
257	$required = wp_sprintf_l( '%l', $required );
258
259	/* translators: %1$s = Plugin name, %2$s = Plugin version, $3$s is something like "PHP 5.4" or "PHP 5.4 and WordPress 4.0". */
260	$message = '<p>' . sprintf( esc_html__( 'To function properly, %1$s %2$s requires at least %3$s.', 'imagify' ), '<strong>' . $this->plugin_name . '</strong>', $this->plugin_version, $required ) . "</p>\n" . $message;
261
262	$message .= '<p>' . esc_html__( 'If you are not able to upgrade, you can rollback to the previous version by using the button below.', 'imagify' ) . "</p>\n";
263	/* translators: %s = Previous plugin version. */
264	$message .= '<p class="submit"><a href="' . esc_url( $rollback_url ) . '" class="button">' . sprintf( __( 'Re-install version %s', 'imagify' ), $this->get_last_version() ) . '</a></p>';
265
266	echo '<div class="notice notice-error">' . $message . '</div>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
267	}
268
269	/**
270	* Do the rollback.
271	*
272	* @since 1.9
273	*/
274	public function rollback() {
275	check_ajax_referer( 'imagify_rollback' );
276
277	if ( ! $this->current_user_can() ) {
278	wp_die();
279	}
280
281	$plugin_transient = get_site_transient( 'update_plugins' );
282	$plugin_basename = plugin_basename( $this->plugin_file );
283	$plugin_folder = dirname( $plugin_basename );
284	$last_version = $this->get_last_version();
285	$package_filename = $plugin_folder . '.' . $last_version . '.zip';
286
287	$plugin_transient->checked[ $plugin_basename ] = $last_version;
288
289	if ( ! empty( $plugin_transient->response[ $plugin_basename ] ) ) {
290	$tmp_obj = $plugin_transient->response[ $plugin_basename ];
291	} elseif ( ! empty( $plugin_transient->no_update[ $plugin_basename ] ) ) {
292	$tmp_obj = $plugin_transient->no_update[ $plugin_basename ];
293	} else {
294	$tmp_obj = (object) [
295	'id' => 'w.org/plugins/' . $plugin_folder,
296	'slug' => $plugin_folder,
297	'plugin' => $plugin_basename,
298	'new_version' => $last_version,
299	'url' => 'https://wordpress.org/plugins/' . $plugin_folder . '/',
300	'package' => 'https://downloads.wordpress.org/plugin/' . $package_filename,
301	'icons' => [],
302	'banners' => [],
303	'banners_rtl' => [],
304	];
305	}
306
307	$tmp_obj->new_version = $last_version;
308	$tmp_obj->package = preg_replace( '@/[^/]+$@', '/' . $package_filename, $tmp_obj->package );
309
310	$plugin_transient->response[ $plugin_basename ] = $tmp_obj;
311	unset( $plugin_transient->no_update[ $plugin_basename ] );
312
313	set_site_transient( 'update_plugins', $plugin_transient );
314
315	require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
316
317	/* translators: %s is the plugin name. */
318	$title = sprintf( __( '%s Update Rollback', 'imagify' ), $this->plugin_name );
319	$nonce = 'upgrade-plugin_' . $plugin_basename;
320	$url = 'update.php?action=upgrade-plugin&plugin=' . rawurlencode( $plugin_basename );
321	$upgrader_skin = new Plugin_Upgrader_Skin( compact( 'title', 'nonce', 'url', 'plugin' ) );
322	$upgrader = new Plugin_Upgrader( $upgrader_skin );
323
324	$upgrader->upgrade( $plugin_basename );
325
326	wp_die(
327	'',
328	// translators: %s is the plugin name.
329	sprintf( esc_html__( '%s Update Rollback', 'imagify' ), esc_html( $this->plugin_name ) ),
330	[ 'response' => 200 ]
331	);
332	}
333	}
334