datafeedr-api / classes / class-datafeedr-plugin-dependency.php

class-datafeedr-plugin-dependency.php in Datafeedr API 1.4.0, at classes/class-datafeedr-plugin-dependency.php

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1	<?php
2
3
4	/**
5	* Class Dfrapi_Plugin_Dependency
6	*
7	* USAGE:
8	* ++++++++++++++++++++++++++++++++++++++++
9	* $dependency = new Dfrapi_Plugin_Dependency( 'WooCommerce', 'woocommerce/woocommerce.php', '3.2.0' );
10	* $action = $dependency->action_required();
11	* if ( $action ) {
12	* echo '<div class="notice notice-error"><p>';
13	* echo $dependency->msg( 'Datafeedr API' );
14	* echo $dependency->link();
15	* echo '</p></div>';
16	* }
17	*/
18	class Dfrapi_Plugin_Dependency {
19
20	/**
21	* Name of required plugin.
22	*
23	* Example: WooCommerce
24	*
25	* @since 1.0.0
26	* @access protected
27	* @var string $name
28	*/
29	protected $name;
30
31	/**
32	* File name of plugin.
33	*
34	* Example: woocommerce/woocommerce.php
35	*
36	* @since 1.0.0
37	* @access protected
38	* @var string $file
39	*/
40	protected $file;
41
42	/**
43	* The minimum version of the plugin required.
44	*
45	* Example: 3.2.6
46	*
47	* @since 1.0.0
48	* @access protected
49	* @var string $version
50	*/
51	protected $version;
52
53	/**
54	* Whether the plugin is required.
55	*
56	* If the plugin is not required, only a version check will be performed.
57	*
58	* @since 1.0.0
59	* @access protected
60	* @var bool $required
61	*/
62	protected $required;
63
64	/**
65	* Data returned by get_plugin_data() about the required plugin.
66	*
67	* @since 1.0.0
68	* @access protected
69	* @var array $data
70	*/
71	protected $data;
72
73	/**
74	* Datafeedr_Plugin_Dependency constructor.
75	*
76	* @since 1.0.0
77	*
78	* @param string $name
79	* @param string $file
80	* @param string $version
81	* @param bool $required
82	*/
83	public function __construct( $name, $file, $version, $required = true ) {
84	$this->name = $name;
85	$this->file = $file;
86	$this->version = $version;
87	$this->required = $required;
88	$this->set_data();
89	}
90
91	/**
92	* Sets the $this->data field.
93	*
94	* @since 1.0.0
95	*/
96	protected function set_data() {
97	$this->data = ( $this->is_installed() ) ? get_plugin_data( $this->plugin_path() ) : array();
98	}
99
100	/**
101	* Returns "install", "activate" or "update" if an action is required for the required plugin.
102	*
103	* If no action is required, returns false.
104	*
105	* @since 1.0.0
106	*
107	* @return bool\|string Returns "install", "activate" or "update" or false.
108	*/
109	public function action_required() {
110
111	if ( ! $this->is_installed() && $this->required ) {
112	return 'install';
113	}
114
115	if ( ! $this->is_active() && $this->required ) {
116	return 'activate';
117	}
118
119	if ( ! $this->version_is_compatible() && $this->is_active() ) {
120	return 'update';
121	}
122
123	return false;
124	}
125
126	/**
127	* Returns the required plugin's name.
128	*
129	* @since 1.0.0
130	*
131	* @return string
132	*/
133	public function plugin_name() {
134	return $this->name;
135	}
136
137	/**
138	* Returns true if the required plugin is installed otherwise returns false.
139	*
140	* @since 1.0.0
141	*
142	* @return bool
143	*/
144	public function is_installed() {
145	return ( file_exists( $this->plugin_path() ) );
146	}
147
148	/**
149	* Returns true if the required plugin is activated otherwise returns false.
150	*
151	* @since 1.0.0
152	*
153	* @return bool
154	*/
155	public function is_active() {
156	return ( is_plugin_active( $this->file ) );
157	}
158
159	/**
160	* Returns true if the required plugin meets the minimum version required otherwise returns false.
161	*
162	* @since 1.0.0
163	*
164	* @return bool
165	*/
166	public function version_is_compatible() {
167	return ( version_compare( $this->current_version(), $this->required_version(), '>=' ) );
168	}
169
170	/**
171	* Returns the "installation" url if the user can install plugins. Otherwise returns an empty string.
172	*
173	* @since 1.0.0
174	*
175	* @return string
176	*/
177	public function install_url() {
178
179	if ( ! current_user_can( 'install_plugins' ) ) {
180	return '';
181	}
182
183	$plugin_name = $this->plugin_action_name();
184
185	$url = add_query_arg( array(
186	'action' => 'install-plugin',
187	'plugin' => $plugin_name
188	), wp_nonce_url( admin_url( 'update.php' ), 'install-plugin_' . $plugin_name ) );
189
190	return $url;
191	}
192
193	/**
194	* Returns the "activation" url if the user can activate this plugin. Otherwise returns an empty string.
195	*
196	* @since 1.0.0
197	*
198	* @return string
199	*/
200	public function activate_url() {
201
202	if ( ! current_user_can( 'activate_plugin', $this->file ) ) {
203	return '';
204	}
205
206	$url = add_query_arg( array(
207	'action' => 'activate',
208	'plugin' => urlencode( $this->file ),
209	'paged' => '1',
210	's' => '',
211	), wp_nonce_url( admin_url( 'plugins.php' ), 'activate-plugin_' . $this->file ) );
212
213	return $url;
214	}
215
216	/**
217	* Returns the "update" url if the user can update plugins. Otherwise returns an empty string.
218	*
219	* @since 1.0.0
220	*
221	* @return string
222	*/
223	public function update_url() {
224
225	if ( ! current_user_can( 'update_plugins' ) ) {
226	return '';
227	}
228
229	$url = add_query_arg( array(
230	'action' => 'upgrade-plugin',
231	'plugin' => urlencode( $this->file )
232	), wp_nonce_url( admin_url( 'update.php' ), 'upgrade-plugin_' . $this->file ) );
233
234	return $url;
235	}
236
237	/**
238	* Returns the current version of the installed plugin of 0 if plugin does not exist.
239	*
240	* @since 1.0.0
241	*
242	* @return string
243	*/
244	public function current_version() {
245	$data = $this->plugin_data();
246
247	return ( isset( $data['Version'] ) ) ? $data['Version'] : '0';
248	}
249
250	/**
251	* Returns the minimum version of the required plugin.
252	*
253	* @since 1.0.0
254	*
255	* @return string
256	*/
257	public function required_version() {
258	return $this->version;
259	}
260
261	/**
262	* Returns the message to display to the user if the required plugins needs to
263	* be installed, activated or updated.
264	*
265	* @since 1.0.0
266	*
267	* @see install_msg(), activate_msg(), update_msg()
268	*
269	* @param string $request_plugin Name of the requesting plugin.
270	*
271	* @return string
272	*/
273	public function msg( $request_plugin ) {
274
275	$action = $this->action_required();
276
277	if ( ! $action ) {
278	return '';
279	}
280
281	$func = $action . '_msg';
282
283	return $this->$func( $request_plugin );
284	}
285
286	/**
287	* Returns the full <a href="..."></a> link for an install/activate/update action.
288	*
289	* @since 1.0.0
290	*
291	* @param bool $button Whether to display the link as a button.
292	* @param string $text Override the link's anchor text.
293	*
294	* @return string HTML.
295	*/
296	public function link( $button = true, $text = '' ) {
297
298	$action = $this->action_required();
299
300	if ( ! $action ) {
301	return '';
302	}
303
304	// Calls install_url(), activate_url() or update_url().
305	$func = $action . '_url';
306	$url = $this->$func();
307
308	// Create the title attribute.
309	$title = sprintf(
310	__( '%1$s the %2$s plugin now.', 'datafeedr' ),
311	esc_attr( ucwords( strtolower( $action ) ) ),
312	esc_attr( $this->plugin_name() )
313	);
314
315	// Link CSS class.
316	$class = ( $button ) ? 'button button-small button-primary' : '';
317
318	// The anchor text for the link.
319	$text = ( ! empty( $text ) ) ? esc_html( $text ) : esc_html( ucwords( strtolower( $action ) ) );
320
321	// The HTML to return;
322	$html = ' <a href="%1$s" title="%2$s" class="%3$s">%4$s</a>';
323
324	return sprintf( $html, $url, $title, $class, $text );
325	}
326
327	/**
328	* Returns the message notifying the user that the required plugin must be installed.
329	*
330	* @since 1.0.0
331	*
332	* @param string $request_plugin Name of the requesting plugin.
333	*
334	* @return string Message to user.
335	*/
336	protected function install_msg( $request_plugin ) {
337	$msg = __(
338	'The %1$s plugin requires the <strong>%2$s</strong> plugin to be installed.',
339	'datafeedr'
340	);
341
342	return sprintf( $msg, $request_plugin, $this->wporg_link(), $this->plugin_name() );
343	}
344
345	/**
346	* Returns the message notifying the user that the required plugin must be activated.
347	*
348	* @since 1.0.0
349	*
350	* @param string $request_plugin Name of the requesting plugin.
351	*
352	* @return string Message to user.
353	*/
354	protected function activate_msg( $request_plugin ) {
355	$msg = __(
356	'The %1$s plugin requires the <strong>%2$s</strong> plugin to be activated.',
357	'datafeedr'
358	);
359
360	return sprintf( $msg, $request_plugin, $this->wporg_link() );
361	}
362
363	/**
364	* Returns the message notifying the user that the required plugin must be updated.
365	*
366	* @since 1.0.0
367	*
368	* @param string $request_plugin Name of the requesting plugin.
369	*
370	* @return string Message to user.
371	*/
372	protected function update_msg( $request_plugin ) {
373	$msg = __(
374	'The %1$s plugin requires <strong>%2$s version %3$s</strong> or greater.',
375	'datafeedr'
376	);
377
378	return sprintf( $msg, $request_plugin, $this->wporg_link( $this->plugin_name() ),
379	$this->required_version() );
380	}
381
382	/**
383	* Returns an link <a href="..." target="_blank"></a> to the required plugin on wordpress.org's site.
384	*
385	* @since 1.0.0
386	*
387	* @param string $text Optional. Override anchor text.
388	*
389	* @return string HTML
390	*/
391	public function wporg_link( $text = '' ) {
392	$url = $this->wporg_url();
393	$title = __( 'View this plugin on wordpress.org', 'datafeedr' );
394	$text = ( empty( $text ) ) ? esc_html( $this->plugin_name() ) : esc_html( $text );
395	$html = '<a href="%1$s" title="%2$s" target="_blank">%3$s</a>';
396
397	return sprintf( $html, $url, $title, $text );
398	}
399
400	/**
401	* Returns the URL to the required plugin's wordpress.org page.
402	*
403	* @since 1.0.0
404	*
405	* @return string URL
406	*/
407	public function wporg_url() {
408	return sprintf( 'https://wordpress.org/plugins/%1$s/', $this->plugin_action_name() );
409	}
410
411	/**
412	* Returns the $this->data property.
413	*
414	* @since 1.0.0
415	*
416	* @return array
417	*/
418	protected function plugin_data() {
419	return $this->data;
420	}
421
422	/**
423	* Returns the full path to the plugin file.
424	*
425	* Example: /home/username/public_html/wp-content/plugins/woocommerce/woocommerce.php
426	*
427	* @since 1.0.0
428	*
429	* @return string Full path
430	*/
431	protected function plugin_path() {
432	return $this->plugins_dir() . $this->file;
433	}
434
435	/**
436	* Returns the full path to the WordPress plugin's directory WITH trailing slash.
437	*
438	* Example: /home/username/public_html/wp-content/plugins/
439	*
440	* @since 1.0.0
441	*
442	* @return string Full path with trailing slash.
443	*/
444	protected function plugins_dir() {
445	return trailingslashit( WP_PLUGIN_DIR );
446	}
447
448	/**
449	* Returns the first part of the $this->file name.
450	*
451	* If the $this->file is "woocommerce/woocommerce.php" then this method will
452	* return "woocommerce".
453	*
454	* If the $this->file is "wordpress-seo/wp-seo.php", then this method will
455	* return "wordpress-seo".
456	*
457	* @since 1.0.0
458	*
459	* @return string
460	*/
461	protected function plugin_action_name() {
462	$name = explode( '/', $this->file );
463	$name = str_replace( '.php', '', $name[0] );
464
465	return $name;
466	}
467	}
468