stream / classes / class-uninstall.php

class-uninstall.php in Stream – Activity Log & Audit Trail 3.1, at classes/class-uninstall.php

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1	<?php
2	namespace WP_Stream;
3
4	class Uninstall {
5	/**
6	* Hold Plugin class
7	* @var Plugin
8	*/
9	public $plugin;
10
11	/**
12	* Hold the array of option keys to uninstall
13	*
14	* @var array
15	*/
16	public $options;
17
18	/**
19	* Hold the array of user meta keys to uninstall
20	*
21	* @var array
22	*/
23	public $user_meta;
24
25	function __construct( $plugin ) {
26	$this->plugin = $plugin;
27
28	$this->user_meta = array(
29	'edit_stream_per_page',
30	'stream_last_read', // Deprecated
31	'stream_unread_count', // Deprecated
32	'stream_user_feed_key', // Deprecated
33	);
34	}
35
36	/**
37	* Uninstall Stream by deleting its data
38	*/
39	public function uninstall() {
40	//check_ajax_referer( 'stream_nonce', 'wp_stream_nonce' );
41
42	$this->options = array(
43	$this->plugin->install->option_key,
44	$this->plugin->settings->option_key,
45	$this->plugin->settings->network_options_key,
46	);
47
48	// Verify current user's permissions before proceeding
49	if ( ! current_user_can( $this->plugin->admin->settings_cap ) ) {
50	wp_die(
51	esc_html__( "You don't have sufficient privileges to do this action.", 'stream' )
52	);
53	}
54
55	// Prevent this action from firing
56	remove_action( 'deactivate_plugin', array( 'Connector_Installer', 'callback' ), null );
57
58	// Just in case
59	if ( ! function_exists( 'is_plugin_active_for_network' ) ) {
60	require_once ABSPATH . '/wp-admin/includes/plugin.php';
61	}
62
63	// Drop everything on single site installs or when network activated
64	// Otherwise only delete data relative to the current blog
65	if ( ! is_multisite() \|\| is_plugin_active_for_network( $this->plugin->locations['plugin'] ) ) {
66	$this->delete_all_records();
67	$this->delete_all_options();
68	$this->delete_all_user_meta();
69	} else {
70	$blog_id = get_current_blog_id();
71
72	$this->delete_blog_records( $blog_id );
73	$this->delete_blog_options( $blog_id );
74	$this->delete_blog_user_meta( $blog_id );
75	}
76
77	$this->delete_all_cron_events();
78
79	$this->deactivate();
80	}
81
82	/**
83	* Delete the Stream database tables
84	*/
85	private function delete_all_records() {
86	global $wpdb;
87
88	$wpdb->query( "DROP TABLE {$wpdb->stream}" );
89	$wpdb->query( "DROP TABLE {$wpdb->streammeta}" );
90	}
91
92	/**
93	* Delete records and record meta from a specific blog
94	*
95	* @param int $blog_id (optional)
96	*/
97	private function delete_blog_records( $blog_id = 1 ) {
98	if ( empty( $blog_id ) \|\| ! is_int( $blog_id ) ) {
99	return;
100	}
101
102	global $wpdb;
103
104	$wpdb->query(
105	$wpdb->prepare(
106	"DELETE `records`, `meta`
107	FROM {$wpdb->stream} AS `records`
108	LEFT JOIN {$wpdb->streammeta} AS `meta`
109	ON `meta`.`record_id` = `records`.`ID`
110	WHERE blog_id = %d;",
111	$blog_id
112	)
113	);
114	}
115
116	/**
117	* Delete all options
118	*/
119	private function delete_all_options() {
120	global $wpdb;
121
122	// Wildcard matches
123	$wpdb->query( "DELETE FROM {$wpdb->options} WHERE option_name LIKE '%wp_stream%';" );
124
125	// Specific options
126	foreach ( $this->options as $option ) {
127	delete_site_option( $option ); // Supports both multisite and single site installs
128	}
129
130	// Single site installs can stop here
131	if ( ! is_multisite() ) {
132	return;
133	}
134
135	// Wildcard matches on network options
136	$wpdb->query( "DELETE FROM {$wpdb->sitemeta} WHERE meta_key LIKE '%wp_stream%';" );
137
138	// Delete options from each blog on network
139	foreach ( wp_stream_get_sites() as $blog ) {
140	$this->delete_blog_options( absint( $blog->blog_id ) );
141	}
142	}
143
144	/**
145	* Delete options from a specific blog
146	*
147	* @param int $blog_id (optional)
148	*/
149	private function delete_blog_options( $blog_id = 1 ) {
150	if ( empty( $blog_id ) \|\| ! is_int( $blog_id ) ) {
151	return;
152	}
153
154	global $wpdb;
155
156	// Wildcard matches
157	$wpdb->query( "DELETE FROM {$wpdb->prefix}options WHERE option_name LIKE '%wp_stream%';" );
158
159	// Specific options
160	foreach ( $this->options as $option ) {
161	delete_blog_option( $blog_id, $option );
162	}
163	}
164
165	/**
166	* Delete all user meta
167	*/
168	private function delete_all_user_meta() {
169	global $wpdb;
170
171	// Wildcard matches
172	$wpdb->query( "DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE '%wp_stream%';" );
173
174	// Specific user meta
175	foreach ( $this->user_meta as $meta_key ) {
176	$wpdb->query(
177	$wpdb->prepare( "DELETE FROM {$wpdb->usermeta} WHERE meta_key = %s;", $meta_key )
178	);
179	}
180	}
181
182	/**
183	* Delete user meta from a specific blog
184	*
185	* @param int $blog_id (optional)
186	*/
187	private function delete_blog_user_meta( $blog_id = 1 ) {
188	if ( empty( $blog_id ) \|\| ! is_int( $blog_id ) ) {
189	return;
190	}
191
192	global $wpdb;
193
194	// Wildcard matches
195	$wpdb->query( "DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE '{$wpdb->prefix}%wp_stream%';" );
196
197	// Specific user meta
198	foreach ( $this->user_meta as $meta_key ) {
199	$wpdb->query(
200	$wpdb->prepare( "DELETE FROM {$wpdb->usermeta} WHERE meta_key = '{$wpdb->prefix}%s';", $meta_key )
201	);
202	}
203	}
204
205	/**
206	* Delete scheduled cron event hooks
207	*/
208	private function delete_all_cron_events() {
209	wp_clear_scheduled_hook( 'wp_stream_auto_purge' );
210	}
211
212	/**
213	* Deactivate the plugin and redirect to the plugins screen
214	*/
215	private function deactivate() {
216	deactivate_plugins( $this->plugin->locations['plugin'] );
217
218	wp_safe_redirect(
219	add_query_arg(
220	array(
221	'deactivate' => true,
222	),
223	self_admin_url( 'plugins.php' )
224	)
225	);
226
227	exit;
228	}
229	}
230