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Jetpack – WP Security, Backup, Speed, & Growth / 4.9.3
Jetpack – WP Security, Backup, Speed, & Growth v4.9.3
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jetpack / class.jetpack-network.php

class.jetpack-network.php in Jetpack – WP Security, Backup, Speed, & Growth 4.9.3, at class.jetpack-network.php

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1 <?php
2
3 /**
4 * Used to manage Jetpack installation on Multisite Network installs
5 *
6 * SINGLETON: To use call Jetpack_Network::init()
7 *
8 * DO NOT USE ANY STATIC METHODS IN THIS CLASS!!!!!!
9 *
10 * @since 2.9
11 */
12 class Jetpack_Network {
13
14 /**
15 * Holds a static copy of Jetpack_Network for the singleton
16 *
17 * @since 2.9
18 * @var Jetpack_Network
19 */
20 private static $instance = null;
21
22 /**
23 * Name of the network wide settings
24 *
25 * @since 2.9
26 * @var string
27 */
28 private $settings_name = 'jetpack-network-settings';
29
30 /**
31 * Defaults for settings found on the Jetpack > Settings page
32 *
33 * @since 2.9
34 * @var array
35 */
36 private $setting_defaults = array(
37 'auto-connect' => 0,
38 'sub-site-connection-override' => 1,
39 //'manage_auto_activated_modules' => 0,
40 );
41
42 /**
43 * Constructor
44 *
45 * @since 2.9
46 */
47 private function __construct() {
48 require_once( ABSPATH . '/wp-admin/includes/plugin.php' ); // For the is_plugin... check
49 require_once( JETPACK__PLUGIN_DIR . 'modules/protect/shared-functions.php' ); // For managing the global whitelist
50 /*
51 * Sanity check to ensure the install is Multisite and we
52 * are in Network Admin
53 */
54 if ( is_multisite() && is_network_admin() ) {
55 add_action( 'network_admin_menu', array( $this, 'add_network_admin_menu' ) );
56 add_action( 'network_admin_edit_jetpack-network-settings', array( $this, 'save_network_settings_page' ), 10, 0 );
57 add_filter( 'admin_body_class', array( $this, 'body_class' ) );
58
59 if ( isset( $_GET['page'] ) && 'jetpack' == $_GET['page'] ) {
60 add_action( 'admin_init', array( $this, 'jetpack_sites_list' ) );
61 }
62 }
63
64 /*
65 * Things that should only run on multisite
66 */
67 if ( is_multisite() && is_plugin_active_for_network( 'jetpack/jetpack.php' ) ) {
68 add_action( 'wp_before_admin_bar_render', array( $this, 'add_to_menubar' ) );
69
70 /*
71 * If admin wants to automagically register new sites set the hook here
72 *
73 * This is a hacky way because xmlrpc is not available on wpmu_new_blog
74 */
75 if ( $this->get_option( 'auto-connect' ) == 1 ) {
76 add_action( 'wpmu_new_blog', array( $this, 'do_automatically_add_new_site' ) );
77 }
78 }
79
80 // Remove the toggles for 2.9, re-evaluate how they're done and added for a 3.0 release. They don't feel quite right yet.
81 // add_filter( 'jetpack_get_default_modules', array( $this, 'set_auto_activated_modules' ) );
82 }
83
84 /**
85 * Sets which modules get activated by default on subsite connection.
86 * Modules can be set in Network Admin > Jetpack > Settings
87 *
88 * @since 2.9
89 *
90 * @param array $modules
91 *
92 * @return array
93 **/
94 public function set_auto_activated_modules( $modules ) {
95 return $modules;
96
97 /* Remove the toggles for 2.9, re-evaluate how they're done and added for a 3.0 release. They don't feel quite right yet.
98 if( 1 == $this->get_option( 'manage_auto_activated_modules' ) ) {
99 return (array) $this->get_option( 'modules' );
100 } else {
101 return $modules;
102 }
103 */
104 }
105
106 /**
107 * Registers new sites upon creation
108 *
109 * @since 2.9
110 * @uses wpmu_new_blog
111 *
112 * @param int $blog_id
113 **/
114 public function do_automatically_add_new_site( $blog_id ) {
115 $this->do_subsiteregister( $blog_id );
116 }
117
118 /**
119 * Adds .network-admin class to the body tag
120 * Helps distinguish network admin JP styles from regular site JP styles
121 *
122 * @since 2.9
123 */
124 public function body_class( $classes ) {
125 return trim( $classes ) . ' network-admin ';
126 }
127
128 /**
129 * Provides access to an instance of Jetpack_Network
130 *
131 * This is how the Jetpack_Network object should *always* be accessed
132 *
133 * @since 2.9
134 * @return Jetpack_Network
135 */
136 public static function init() {
137 if ( ! self::$instance || ! is_a( self::$instance, 'Jetpack_Network' ) ) {
138 self::$instance = new Jetpack_Network;
139 }
140
141 return self::$instance;
142 }
143
144 /**
145 * Registers the Multisite admin bar menu item shortcut.
146 * This shortcut helps users quickly and easily navigate to the Jetpack Network Admin
147 * menu from anywhere in their network.
148 *
149 * @since 2.9
150 */
151 public function register_menubar() {
152 add_action( 'wp_before_admin_bar_render', array( $this, 'add_to_menubar' ) );
153 }
154
155 /**
156 * Runs when Jetpack is deactivated from the network admin plugins menu.
157 * Each individual site will need to have Jetpack::disconnect called on it.
158 * Site that had Jetpack individually enabled will not be disconnected as
159 * on Multisite individually activated plugins are still activated when
160 * a plugin is deactivated network wide.
161 *
162 * @since 2.9
163 **/
164 public function deactivate() {
165 // Only fire if in network admin
166 if ( ! is_network_admin() ) {
167 return;
168 }
169
170 $sites = get_sites();
171
172 foreach ( $sites as $s ) {
173 switch_to_blog( $s->blog_id );
174 $active_plugins = get_option( 'active_plugins' );
175
176 /*
177 * If this plugin was activated in the subsite individually
178 * we do not want to call disconnect. Plugins activated
179 * individually (before network activation) stay activated
180 * when the network deactivation occurs
181 */
182 if ( ! in_array( 'jetpack/jetpack.php', $active_plugins ) ) {
183 Jetpack::disconnect();
184 }
185 }
186 restore_current_blog();
187 }
188
189 /**
190 * Adds a link to the Jetpack Network Admin page in the network admin menu bar.
191 *
192 * @since 2.9
193 **/
194 public function add_to_menubar() {
195 global $wp_admin_bar;
196 // Don't show for logged out users or single site mode.
197 if ( ! is_user_logged_in() || ! is_multisite() ) {
198 return;
199 }
200
201 $wp_admin_bar->add_node( array(
202 'parent' => 'network-admin',
203 'id' => 'network-admin-jetpack',
204 'title' => __( 'Jetpack', 'jetpack' ),
205 'href' => $this->get_url( 'network_admin_page' ),
206 ) );
207 }
208
209 /**
210 * Returns various URL strings. Factory like
211 *
212 * $args can be a string or an array.
213 * If $args is an array there must be an element called name for the switch statement
214 *
215 * Currently supports:
216 * - subsiteregister: Pass array( 'name' => 'subsiteregister', 'site_id' => SITE_ID )
217 * - network_admin_page: Provides link to /wp-admin/network/JETPACK
218 * - subsitedisconnect: Pass array( 'name' => 'subsitedisconnect', 'site_id' => SITE_ID )
219 *
220 * @since 2.9
221 *
222 * @param Mixed $args
223 *
224 * @return String
225 **/
226 public function get_url( $args ) {
227 $url = null; // Default url value
228
229 if ( is_string( $args ) ) {
230 $name = $args;
231 } else {
232 $name = $args['name'];
233 }
234
235 switch ( $name ) {
236 case 'subsiteregister':
237 if ( ! isset( $args['site_id'] ) ) {
238 break; // If there is not a site id present we cannot go further
239 }
240 $url = network_admin_url(
241 'admin.php?page=jetpack&action=subsiteregister&site_id='
242 . $args['site_id']
243 );
244 break;
245
246 case 'network_admin_page':
247 $url = network_admin_url( 'admin.php?page=jetpack' );
248 break;
249
250 case 'subsitedisconnect':
251 if ( ! isset( $args['site_id'] ) ) {
252 break; // If there is not a site id present we cannot go further
253 }
254 $url = network_admin_url(
255 'admin.php?page=jetpack&action=subsitedisconnect&site_id='
256 . $args['site_id']
257 );
258 break;
259 }
260
261 return $url;
262 }
263
264 /**
265 * Adds the Jetpack menu item to the Network Admin area
266 *
267 * @since 2.9
268 */
269 public function add_network_admin_menu() {
270 add_menu_page( __( 'Jetpack', 'jetpack' ), __( 'Jetpack', 'jetpack' ), 'jetpack_network_admin_page', 'jetpack', array( $this, 'network_admin_page' ), 'div', 3 );
271 add_submenu_page( 'jetpack', __( 'Jetpack Sites', 'jetpack' ), __( 'Sites', 'jetpack' ), 'jetpack_network_sites_page', 'jetpack', array( $this, 'network_admin_page' ) );
272 add_submenu_page( 'jetpack', __( 'Settings', 'jetpack' ), __( 'Settings', 'jetpack' ), 'jetpack_network_settings_page', 'jetpack-settings', array( $this, 'render_network_admin_settings_page' ) );
273
274 /**
275 * As jetpack_register_genericons is by default fired off a hook,
276 * the hook may have already fired by this point.
277 * So, let's just trigger it manually.
278 */
279 require_once( JETPACK__PLUGIN_DIR . '_inc/genericons.php' );
280 jetpack_register_genericons();
281
282 if ( ! wp_style_is( 'jetpack-icons', 'registered' ) ) {
283 wp_register_style( 'jetpack-icons', plugins_url( 'css/jetpack-icons.min.css', JETPACK__PLUGIN_FILE ), false, JETPACK__VERSION );
284 }
285
286 add_action( 'admin_enqueue_scripts', array( $this, 'admin_menu_css' ) );
287 }
288
289 /**
290 * Adds JP menu icon
291 *
292 * @since 2.9
293 **/
294 function admin_menu_css() {
295 wp_enqueue_style( 'jetpack-icons' );
296 }
297
298 /**
299 * Provides functionality for the Jetpack > Sites page.
300 * Does not do the display!
301 *
302 * @since 2.9
303 */
304 public function jetpack_sites_list() {
305 Jetpack::init();
306
307 if ( isset( $_GET['action'] ) ) {
308 switch ( $_GET['action'] ) {
309 case 'subsiteregister':
310 /*
311 * @todo check_admin_referer( 'jetpack-subsite-register' );
312 */
313 Jetpack::log( 'subsiteregister' );
314
315 // If !$_GET['site_id'] stop registration and error
316 if ( ! isset( $_GET['site_id'] ) || empty( $_GET['site_id'] ) ) {
317 // Log error to state cookie for display later
318 /**
319 * @todo Make state messages show on Jetpack NA pages
320 **/
321 Jetpack::state( 'missing_site_id', esc_html__( 'Site ID must be provided to register a sub-site.', 'jetpack' ) );
322 break;
323 }
324
325 // Send data to register endpoint and retrieve shadow blog details
326 $result = $this->do_subsiteregister();
327 $url = $this->get_url( 'network_admin_page' );
328
329 if ( is_wp_error( $result ) ) {
330 $url = add_query_arg( 'action', 'connection_failed', $url );
331 } else {
332 $url = add_query_arg( 'action', 'connected', $url );
333 }
334
335 wp_safe_redirect( $url );
336 break;
337
338 case 'subsitedisconnect':
339 Jetpack::log( 'subsitedisconnect' );
340
341 if ( ! isset( $_GET['site_id'] ) || empty( $_GET['site_id'] ) ) {
342 Jetpack::state( 'missing_site_id', esc_html__( 'Site ID must be provided to disconnect a sub-site.', 'jetpack' ) );
343 break;
344 }
345
346 $this->do_subsitedisconnect();
347 break;
348
349 case 'connected':
350 case 'connection_failed':
351 add_action( 'jetpack_notices', array( $this, 'show_jetpack_notice' ) );
352 break;
353 }
354 }
355 }
356
357 public function show_jetpack_notice() {
358 if ( isset( $_GET['action'] ) && 'connected' == $_GET['action'] ) {
359 $notice = __( 'Site successfully connected.', 'jetpack' );
360 } else if ( isset( $_GET['action'] ) && 'connection_failed' == $_GET['action'] ) {
361 $notice = __( 'Site connection <strong>failed</strong>', 'jetpack' );
362 }
363
364 Jetpack::init()->load_view( 'admin/network-admin-alert.php', array( 'notice' => $notice ) );
365 }
366
367 /**
368 * Disconnect functionality for an individual site
369 *
370 * @since 2.9
371 * @see Jetpack_Network::jetpack_sites_list()
372 */
373 public function do_subsitedisconnect( $site_id = null ) {
374 if ( ! current_user_can( 'jetpack_disconnect' ) ) {
375 return;
376 }
377 $site_id = ( is_null( $site_id ) ) ? $_GET['site_id'] : $site_id;
378 switch_to_blog( $site_id );
379 Jetpack::disconnect();
380 restore_current_blog();
381 }
382
383 /**
384 * Registers a subsite with the Jetpack servers
385 *
386 * @since 2.9
387 * @todo Break apart into easier to manage chunks that can be unit tested
388 * @see Jetpack_Network::jetpack_sites_list();
389 */
390 public function do_subsiteregister( $site_id = null ) {
391 if ( ! current_user_can( 'jetpack_disconnect' ) ) {
392 return;
393 }
394
395 if ( Jetpack::is_development_mode() ) {
396 return;
397 }
398
399 $jp = Jetpack::init();
400
401 // Figure out what site we are working on
402 $site_id = ( is_null( $site_id ) ) ? $_GET['site_id'] : $site_id;
403
404 // Remote query timeout limit
405 $timeout = $jp->get_remote_query_timeout_limit();
406
407 // The blog id on WordPress.com of the primary network site
408 $network_wpcom_blog_id = Jetpack_Options::get_option( 'id' );
409
410 /*
411 * Here we need to switch to the subsite
412 * For the registration process we really only hijack how it
413 * works for an individual site and pass in some extra data here
414 */
415 switch_to_blog( $site_id );
416
417 // Save the secrets in the subsite so when the wpcom server does a pingback it
418 // will be able to validate the connection
419 $secrets = $jp->generate_secrets( 'register' );
420 @list( $secret_1, $secret_2, $secret_eol ) = explode( ':', $secrets );
421 if ( empty( $secret_1 ) || empty( $secret_2 ) || empty( $secret_eol ) || $secret_eol < time() ) {
422 return new Jetpack_Error( 'missing_secrets' );
423 }
424
425 // Gra info for gmt offset
426 $gmt_offset = get_option( 'gmt_offset' );
427 if ( ! $gmt_offset ) {
428 $gmt_offset = 0;
429 }
430
431 /*
432 * Get the stats_option option from the db.
433 * It looks like the server strips this out so maybe it is not necessary?
434 * Does it match the Jetpack site with the old stats plugin id?
435 *
436 * @todo Find out if sending the stats_id is necessary
437 */
438 $stat_options = get_option( 'stats_options' );
439 $stat_id = $stat_options = isset( $stats_options['blog_id'] ) ? $stats_options['blog_id'] : null;
440 $user_id = get_current_user_id();
441
442 /**
443 * Both `state` and `user_id` need to be sent in the request, even though they are the same value.
444 * Connecting via the network admin combines `register()` and `authorize()` methods into one step,
445 * because we assume the main site is already authorized. `state` is used to verify the `register()`
446 * request, while `user_id()` is used to create the token in the `authorize()` request.
447 */
448 $args = array(
449 'method' => 'POST',
450 'body' => array(
451 'network_url' => $this->get_url( 'network_admin_page' ),
452 'network_wpcom_blog_id' => $network_wpcom_blog_id,
453 'siteurl' => site_url(),
454 'home' => home_url(),
455 'gmt_offset' => $gmt_offset,
456 'timezone_string' => (string) get_option( 'timezone_string' ),
457 'site_name' => (string) get_option( 'blogname' ),
458 'secret_1' => $secret_1,
459 'secret_2' => $secret_2,
460 'site_lang' => get_locale(),
461 'timeout' => $timeout,
462 'stats_id' => $stat_id, // Is this still required?
463 'user_id' => $user_id,
464 'state' => $user_id
465 ),
466 'headers' => array(
467 'Accept' => 'application/json',
468 ),
469 'timeout' => $timeout,
470 );
471
472 // Attempt to retrieve shadow blog details
473 $response = Jetpack_Client::_wp_remote_request(
474 Jetpack::fix_url_for_bad_hosts( Jetpack::api_url( 'subsiteregister' ) ), $args, true
475 );
476
477 /*
478 * $response should either be invalid or contain:
479 * - jetpack_id => id
480 * - jetpack_secret => blog_token
481 * - jetpack_public
482 *
483 * Store the wpcom site details
484 */
485 $valid_response = $jp->validate_remote_register_response( $response );
486
487 if ( is_wp_error( $valid_response ) || ! $valid_response ) {
488 restore_current_blog();
489 return $valid_response;
490 }
491
492 // Grab the response values to work with
493 $code = wp_remote_retrieve_response_code( $response );
494 $entity = wp_remote_retrieve_body( $response );
495 if ( $entity ) {
496 $json = json_decode( $entity );
497 } else {
498 $json = false;
499 }
500
501 if ( empty( $json->jetpack_secret ) || ! is_string( $json->jetpack_secret ) ) {
502 restore_current_blog();
503 return new Jetpack_Error( 'jetpack_secret', '', $code );
504 }
505
506 if ( isset( $json->jetpack_public ) ) {
507 $jetpack_public = (int) $json->jetpack_public;
508 } else {
509 $jetpack_public = false;
510 }
511
512 Jetpack_Options::update_options( array(
513 'id' => (int) $json->jetpack_id,
514 'blog_token' => (string) $json->jetpack_secret,
515 'public' => $jetpack_public,
516 ) );
517
518 /*
519 * Update the subsiteregister method on wpcom so that it also sends back the
520 * token in this same request
521 */
522 $is_master_user = ! Jetpack::is_active();
523 Jetpack::update_user_token(
524 get_current_user_id(),
525 sprintf( '%s.%d', $json->token->secret, get_current_user_id() ),
526 $is_master_user
527 );
528
529 Jetpack::activate_default_modules();
530
531 restore_current_blog();
532 }
533
534 /**
535 * Handles the displaying of all sites on the network that are
536 * dis/connected to Jetpack
537 *
538 * @since 2.9
539 * @see Jetpack_Network::jetpack_sites_list()
540 */
541 function network_admin_page() {
542 global $current_site;
543 $this->network_admin_page_header();
544
545 $jp = Jetpack::init();
546
547 // We should be, but ensure we are on the main blog
548 switch_to_blog( $current_site->blog_id );
549 $main_active = $jp->is_active();
550 restore_current_blog();
551
552 // If we are in dev mode, just show the notice and bail
553 if ( Jetpack::is_development_mode() ) {
554 Jetpack::show_development_mode_notice();
555 return;
556 }
557
558 /*
559 * Ensure the main blog is connected as all other subsite blog
560 * connections will feed off this one
561 */
562 if ( ! $main_active ) {
563 $url = $this->get_url( array(
564 'name' => 'subsiteregister',
565 'site_id' => 1,
566 ) );
567 $data = array( 'url' => $jp->build_connect_url() );
568 Jetpack::init()->load_view( 'admin/must-connect-main-blog.php', $data );
569
570 return;
571 }
572
573 require_once( 'class.jetpack-network-sites-list-table.php' );
574 $myListTable = new Jetpack_Network_Sites_List_Table();
575 echo '<div class="wrap"><h2>' . __( 'Sites', 'jetpack' ) . '</h2>';
576 echo '<form method="post">';
577 $myListTable->prepare_items();
578 $myListTable->display();
579 echo '</form></div>';
580
581 $this->network_admin_page_footer();
582 }
583
584 /**
585 * Stylized JP header formatting
586 *
587 * @since 2.9
588 */
589 function network_admin_page_header() {
590 global $current_user;
591
592 $is_connected = Jetpack::is_active();
593
594 $data = array(
595 'is_connected' => $is_connected
596 );
597 Jetpack::init()->load_view( 'admin/network-admin-header.php', $data );
598 }
599
600 /**
601 * Stylized JP footer formatting
602 *
603 * @since 2.9
604 */
605 function network_admin_page_footer() {
606 Jetpack::init()->load_view( 'admin/network-admin-footer.php' );
607 }
608
609 /**
610 * Fires when the Jetpack > Settings page is saved.
611 *
612 * @since 2.9
613 */
614 public function save_network_settings_page() {
615
616 if ( ! wp_verify_nonce( $_POST['_wpnonce'], 'jetpack-network-settings' ) ) {
617 // no nonce, push back to settings page
618 wp_safe_redirect(
619 add_query_arg(
620 array( 'page' => 'jetpack-settings' ),
621 network_admin_url( 'admin.php' )
622 )
623 );
624 exit();
625 }
626
627 // try to save the Protect whitelist before anything else, since that action can result in errors
628 $whitelist = str_replace( ' ', '', $_POST['global-whitelist'] );
629 $whitelist = explode( PHP_EOL, $whitelist );
630 $result = jetpack_protect_save_whitelist( $whitelist, $global = true );
631 if ( is_wp_error( $result ) ) {
632 wp_safe_redirect(
633 add_query_arg(
634 array( 'page' => 'jetpack-settings', 'error' => 'jetpack_protect_whitelist' ),
635 network_admin_url( 'admin.php' )
636 )
637 );
638 exit();
639 }
640
641 /*
642 * Fields
643 *
644 * auto-connect - Checkbox for global Jetpack connection
645 * sub-site-connection-override - Allow sub-site admins to (dis)reconnect with their own Jetpack account
646 */
647 $auto_connect = 0;
648 if ( isset( $_POST['auto-connect'] ) ) {
649 $auto_connect = 1;
650 }
651
652 $sub_site_connection_override = 0;
653 if ( isset( $_POST['sub-site-connection-override'] ) ) {
654 $sub_site_connection_override = 1;
655 }
656
657 /* Remove the toggles for 2.9, re-evaluate how they're done and added for a 3.0 release. They don't feel quite right yet.
658 $manage_auto_activated_modules = 0;
659 if ( isset( $_POST['manage_auto_activated_modules'] ) ) {
660 $manage_auto_activated_modules = 1;
661 }
662
663 $modules = array();
664 if ( isset( $_POST['modules'] ) ) {
665 $modules = $_POST['modules'];
666 }
667 */
668
669 $data = array(
670 'auto-connect' => $auto_connect,
671 'sub-site-connection-override' => $sub_site_connection_override,
672 //'manage_auto_activated_modules' => $manage_auto_activated_modules,
673 //'modules' => $modules,
674 );
675
676 update_site_option( $this->settings_name, $data );
677 wp_safe_redirect(
678 add_query_arg(
679 array( 'page' => 'jetpack-settings', 'updated' => 'true' ),
680 network_admin_url( 'admin.php' )
681 )
682 );
683 exit();
684 }
685
686 public function render_network_admin_settings_page() {
687 $this->network_admin_page_header();
688 $options = wp_parse_args( get_site_option( $this->settings_name ), $this->setting_defaults );
689
690 $modules = array();
691 $module_slugs = Jetpack::get_available_modules();
692 foreach ( $module_slugs as $slug ) {
693 $module = Jetpack::get_module( $slug );
694 $module['module'] = $slug;
695 $modules[] = $module;
696 }
697
698 usort( $modules, array( 'Jetpack', 'sort_modules' ) );
699
700 if ( ! isset( $options['modules'] ) ) {
701 $options['modules'] = $modules;
702 }
703
704 $data = array(
705 'modules' => $modules,
706 'options' => $options,
707 'jetpack_protect_whitelist' => jetpack_protect_format_whitelist(),
708 );
709
710 Jetpack::init()->load_view( 'admin/network-settings.php', $data );
711 $this->network_admin_page_footer();
712 }
713
714 /**
715 * Updates a site wide option
716 *
717 * @since 2.9
718 *
719 * @param string $key
720 * @param mixed $value
721 *
722 * @return boolean
723 **/
724 public function update_option( $key, $value ) {
725 $options = get_site_option( $this->settings_name, $this->setting_defaults );
726 $options[ $key ] = $value;
727
728 return update_site_option( $this->settings_name, $options );
729 }
730
731 /**
732 * Retrieves a site wide option
733 *
734 * @since 2.9
735 *
736 * @param string $name - Name of the option in the database
737 **/
738 public function get_option( $name ) {
739 $options = get_site_option( $this->settings_name, $this->setting_defaults );
740 $options = wp_parse_args( $options, $this->setting_defaults );
741
742 if ( ! isset( $options[ $name ] ) ) {
743 $options[ $name ] = null;
744 }
745
746 return $options[ $name ];
747 }
748
749 }
750
751 // end class
752