source: trunk/www.guidonia.net/wp/wp-admin/includes/plugin.php@ 44

Last change on this file since 44 was 44, checked in by luciano, 14 years ago
File size: 36.1 KB
Line 
1<?php
2/**
3 * WordPress Plugin Administration API
4 *
5 * @package WordPress
6 * @subpackage Administration
7 */
8
9/**
10 * Parse the plugin contents to retrieve plugin's metadata.
11 *
12 * The metadata of the plugin's data searches for the following in the plugin's
13 * header. All plugin data must be on its own line. For plugin description, it
14 * must not have any newlines or only parts of the description will be displayed
15 * and the same goes for the plugin data. The below is formatted for printing.
16 *
17 * <code>
18 * /*
19 * Plugin Name: Name of Plugin
20 * Plugin URI: Link to plugin information
21 * Description: Plugin Description
22 * Author: Plugin author's name
23 * Author URI: Link to the author's web site
24 * Version: Must be set in the plugin for WordPress 2.3+
25 * Text Domain: Optional. Unique identifier, should be same as the one used in
26 * plugin_text_domain()
27 * Domain Path: Optional. Only useful if the translations are located in a
28 * folder above the plugin's base path. For example, if .mo files are
29 * located in the locale folder then Domain Path will be "/locale/" and
30 * must have the first slash. Defaults to the base folder the plugin is
31 * located in.
32 * * / # Remove the space to close comment
33 * </code>
34 *
35 * Plugin data returned array contains the following:
36 * 'Name' - Name of the plugin, must be unique.
37 * 'Title' - Title of the plugin and the link to the plugin's web site.
38 * 'Description' - Description of what the plugin does and/or notes
39 * from the author.
40 * 'Author' - The author's name
41 * 'AuthorURI' - The authors web site address.
42 * 'Version' - The plugin version number.
43 * 'PluginURI' - Plugin web site address.
44 * 'TextDomain' - Plugin's text domain for localization.
45 * 'DomainPath' - Plugin's relative directory path to .mo files.
46 *
47 * Some users have issues with opening large files and manipulating the contents
48 * for want is usually the first 1kiB or 2kiB. This function stops pulling in
49 * the plugin contents when it has all of the required plugin data.
50 *
51 * The first 8kiB of the file will be pulled in and if the plugin data is not
52 * within that first 8kiB, then the plugin author should correct their plugin
53 * and move the plugin data headers to the top.
54 *
55 * The plugin file is assumed to have permissions to allow for scripts to read
56 * the file. This is not checked however and the file is only opened for
57 * reading.
58 *
59 * @link http://trac.wordpress.org/ticket/5651 Previous Optimizations.
60 * @link http://trac.wordpress.org/ticket/7372 Further and better Optimizations.
61 * @since 1.5.0
62 *
63 * @param string $plugin_file Path to the plugin file
64 * @param bool $markup If the returned data should have HTML markup applied
65 * @param bool $translate If the returned data should be translated
66 * @return array See above for description.
67 */
68function get_plugin_data( $plugin_file, $markup = true, $translate = true ) {
69 // We don't need to write to the file, so just open for reading.
70 $fp = fopen($plugin_file, 'r');
71
72 // Pull only the first 8kiB of the file in.
73 $plugin_data = fread( $fp, 8192 );
74
75 // PHP will close file handle, but we are good citizens.
76 fclose($fp);
77
78 preg_match( '|Plugin Name:(.*)$|mi', $plugin_data, $name );
79 preg_match( '|Plugin URI:(.*)$|mi', $plugin_data, $uri );
80 preg_match( '|Version:(.*)|i', $plugin_data, $version );
81 preg_match( '|Description:(.*)$|mi', $plugin_data, $description );
82 preg_match( '|Author:(.*)$|mi', $plugin_data, $author_name );
83 preg_match( '|Author URI:(.*)$|mi', $plugin_data, $author_uri );
84 preg_match( '|Text Domain:(.*)$|mi', $plugin_data, $text_domain );
85 preg_match( '|Domain Path:(.*)$|mi', $plugin_data, $domain_path );
86
87 foreach ( array( 'name', 'uri', 'version', 'description', 'author_name', 'author_uri', 'text_domain', 'domain_path' ) as $field ) {
88 if ( !empty( ${$field} ) )
89 ${$field} = _cleanup_header_comment(${$field}[1]);
90 else
91 ${$field} = '';
92 }
93
94 $plugin_data = array(
95 'Name' => $name, 'Title' => $name, 'PluginURI' => $uri, 'Description' => $description,
96 'Author' => $author_name, 'AuthorURI' => $author_uri, 'Version' => $version,
97 'TextDomain' => $text_domain, 'DomainPath' => $domain_path
98 );
99 if ( $markup || $translate )
100 $plugin_data = _get_plugin_data_markup_translate($plugin_file, $plugin_data, $markup, $translate);
101
102 return $plugin_data;
103}
104
105function _get_plugin_data_markup_translate($plugin_file, $plugin_data, $markup = true, $translate = true) {
106
107 //Translate fields
108 if( $translate && ! empty($plugin_data['TextDomain']) ) {
109 if( ! empty( $plugin_data['DomainPath'] ) )
110 load_plugin_textdomain($plugin_data['TextDomain'], dirname($plugin_file). $plugin_data['DomainPath']);
111 else
112 load_plugin_textdomain($plugin_data['TextDomain'], dirname($plugin_file));
113
114 foreach ( array('Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version') as $field )
115 $plugin_data[ $field ] = translate($plugin_data[ $field ], $plugin_data['TextDomain']);
116 }
117
118 //Apply Markup
119 if ( $markup ) {
120 if ( ! empty($plugin_data['PluginURI']) && ! empty($plugin_data['Name']) )
121 $plugin_data['Title'] = '<a href="' . $plugin_data['PluginURI'] . '" title="' . __( 'Visit plugin homepage' ) . '">' . $plugin_data['Name'] . '</a>';
122 else
123 $plugin_data['Title'] = $plugin_data['Name'];
124
125 if ( ! empty($plugin_data['AuthorURI']) && ! empty($plugin_data['Author']) )
126 $plugin_data['Author'] = '<a href="' . $plugin_data['AuthorURI'] . '" title="' . __( 'Visit author homepage' ) . '">' . $plugin_data['Author'] . '</a>';
127
128 $plugin_data['Description'] = wptexturize( $plugin_data['Description'] );
129 if( ! empty($plugin_data['Author']) )
130 $plugin_data['Description'] .= ' <cite>' . sprintf( __('By %s'), $plugin_data['Author'] ) . '.</cite>';
131 }
132
133 $plugins_allowedtags = array('a' => array('href' => array(),'title' => array()),'abbr' => array('title' => array()),'acronym' => array('title' => array()),'code' => array(),'em' => array(),'strong' => array());
134
135 // Sanitize all displayed data
136 $plugin_data['Title'] = wp_kses($plugin_data['Title'], $plugins_allowedtags);
137 $plugin_data['Version'] = wp_kses($plugin_data['Version'], $plugins_allowedtags);
138 $plugin_data['Description'] = wp_kses($plugin_data['Description'], $plugins_allowedtags);
139 $plugin_data['Author'] = wp_kses($plugin_data['Author'], $plugins_allowedtags);
140
141 return $plugin_data;
142}
143
144/**
145 * Get a list of a plugin's files.
146 *
147 * @since 2.8.0
148 *
149 * @param string $plugin Plugin ID
150 * @return array List of files relative to the plugin root.
151 */
152function get_plugin_files($plugin) {
153 $plugin_file = WP_PLUGIN_DIR . '/' . $plugin;
154 $dir = dirname($plugin_file);
155 $plugin_files = array($plugin);
156 if ( is_dir($dir) && $dir != WP_PLUGIN_DIR ) {
157 $plugins_dir = @ opendir( $dir );
158 if ( $plugins_dir ) {
159 while (($file = readdir( $plugins_dir ) ) !== false ) {
160 if ( substr($file, 0, 1) == '.' )
161 continue;
162 if ( is_dir( $dir . '/' . $file ) ) {
163 $plugins_subdir = @ opendir( $dir . '/' . $file );
164 if ( $plugins_subdir ) {
165 while (($subfile = readdir( $plugins_subdir ) ) !== false ) {
166 if ( substr($subfile, 0, 1) == '.' )
167 continue;
168 $plugin_files[] = plugin_basename("$dir/$file/$subfile");
169 }
170 @closedir( $plugins_subdir );
171 }
172 } else {
173 if ( plugin_basename("$dir/$file") != $plugin )
174 $plugin_files[] = plugin_basename("$dir/$file");
175 }
176 }
177 @closedir( $plugins_dir );
178 }
179 }
180
181 return $plugin_files;
182}
183
184/**
185 * Check the plugins directory and retrieve all plugin files with plugin data.
186 *
187 * WordPress only supports plugin files in the base plugins directory
188 * (wp-content/plugins) and in one directory above the plugins directory
189 * (wp-content/plugins/my-plugin). The file it looks for has the plugin data and
190 * must be found in those two locations. It is recommended that do keep your
191 * plugin files in directories.
192 *
193 * The file with the plugin data is the file that will be included and therefore
194 * needs to have the main execution for the plugin. This does not mean
195 * everything must be contained in the file and it is recommended that the file
196 * be split for maintainability. Keep everything in one file for extreme
197 * optimization purposes.
198 *
199 * @since unknown
200 *
201 * @param string $plugin_folder Optional. Relative path to single plugin folder.
202 * @return array Key is the plugin file path and the value is an array of the plugin data.
203 */
204function get_plugins($plugin_folder = '') {
205
206 if ( ! $cache_plugins = wp_cache_get('plugins', 'plugins') )
207 $cache_plugins = array();
208
209 if ( isset($cache_plugins[ $plugin_folder ]) )
210 return $cache_plugins[ $plugin_folder ];
211
212 $wp_plugins = array ();
213 $plugin_root = WP_PLUGIN_DIR;
214 if( !empty($plugin_folder) )
215 $plugin_root .= $plugin_folder;
216
217 // Files in wp-content/plugins directory
218 $plugins_dir = @ opendir( $plugin_root);
219 $plugin_files = array();
220 if ( $plugins_dir ) {
221 while (($file = readdir( $plugins_dir ) ) !== false ) {
222 if ( substr($file, 0, 1) == '.' )
223 continue;
224 if ( is_dir( $plugin_root.'/'.$file ) ) {
225 $plugins_subdir = @ opendir( $plugin_root.'/'.$file );
226 if ( $plugins_subdir ) {
227 while (($subfile = readdir( $plugins_subdir ) ) !== false ) {
228 if ( substr($subfile, 0, 1) == '.' )
229 continue;
230 if ( substr($subfile, -4) == '.php' )
231 $plugin_files[] = "$file/$subfile";
232 }
233 }
234 } else {
235 if ( substr($file, -4) == '.php' )
236 $plugin_files[] = $file;
237 }
238 }
239 }
240 @closedir( $plugins_dir );
241 @closedir( $plugins_subdir );
242
243 if ( !$plugins_dir || empty($plugin_files) )
244 return $wp_plugins;
245
246 foreach ( $plugin_files as $plugin_file ) {
247 if ( !is_readable( "$plugin_root/$plugin_file" ) )
248 continue;
249
250 $plugin_data = get_plugin_data( "$plugin_root/$plugin_file", false, false ); //Do not apply markup/translate as it'll be cached.
251
252 if ( empty ( $plugin_data['Name'] ) )
253 continue;
254
255 $wp_plugins[plugin_basename( $plugin_file )] = $plugin_data;
256 }
257
258 uasort( $wp_plugins, create_function( '$a, $b', 'return strnatcasecmp( $a["Name"], $b["Name"] );' ));
259
260 $cache_plugins[ $plugin_folder ] = $wp_plugins;
261 wp_cache_set('plugins', $cache_plugins, 'plugins');
262
263 return $wp_plugins;
264}
265
266/**
267 * Check whether the plugin is active by checking the active_plugins list.
268 *
269 * @since 2.5.0
270 *
271 * @param string $plugin Base plugin path from plugins directory.
272 * @return bool True, if in the active plugins list. False, not in the list.
273 */
274function is_plugin_active($plugin) {
275 return in_array($plugin, get_option('active_plugins'));
276}
277
278/**
279 * Attempts activation of plugin in a "sandbox" and redirects on success.
280 *
281 * A plugin that is already activated will not attempt to be activated again.
282 *
283 * The way it works is by setting the redirection to the error before trying to
284 * include the plugin file. If the plugin fails, then the redirection will not
285 * be overwritten with the success message. Also, the options will not be
286 * updated and the activation hook will not be called on plugin error.
287 *
288 * It should be noted that in no way the below code will actually prevent errors
289 * within the file. The code should not be used elsewhere to replicate the
290 * "sandbox", which uses redirection to work.
291 * {@source 13 1}
292 *
293 * If any errors are found or text is outputted, then it will be captured to
294 * ensure that the success redirection will update the error redirection.
295 *
296 * @since unknown
297 *
298 * @param string $plugin Plugin path to main plugin file with plugin data.
299 * @param string $redirect Optional. URL to redirect to.
300 * @return WP_Error|null WP_Error on invalid file or null on success.
301 */
302function activate_plugin($plugin, $redirect = '') {
303 $current = get_option('active_plugins');
304 $plugin = plugin_basename(trim($plugin));
305
306 $valid = validate_plugin($plugin);
307 if ( is_wp_error($valid) )
308 return $valid;
309
310 if ( !in_array($plugin, $current) ) {
311 if ( !empty($redirect) )
312 wp_redirect(add_query_arg('_error_nonce', wp_create_nonce('plugin-activation-error_' . $plugin), $redirect)); // we'll override this later if the plugin can be included without fatal error
313 ob_start();
314 @include(WP_PLUGIN_DIR . '/' . $plugin);
315 $current[] = $plugin;
316 sort($current);
317 update_option('active_plugins', $current);
318 do_action('activate_' . $plugin);
319 ob_end_clean();
320 }
321
322 return null;
323}
324
325/**
326 * Deactivate a single plugin or multiple plugins.
327 *
328 * The deactivation hook is disabled by the plugin upgrader by using the $silent
329 * parameter.
330 *
331 * @since unknown
332 *
333 * @param string|array $plugins Single plugin or list of plugins to deactivate.
334 * @param bool $silent Optional, default is false. Prevent calling deactivate hook.
335 */
336function deactivate_plugins($plugins, $silent= false) {
337 $current = get_option('active_plugins');
338
339 if ( !is_array($plugins) )
340 $plugins = array($plugins);
341
342 foreach ( $plugins as $plugin ) {
343 $plugin = plugin_basename($plugin);
344 if( ! is_plugin_active($plugin) )
345 continue;
346 array_splice($current, array_search( $plugin, $current), 1 ); // Fixed Array-fu!
347 if ( ! $silent ) //Used by Plugin updater to internally deactivate plugin, however, not to notify plugins of the fact to prevent plugin output.
348 do_action('deactivate_' . trim( $plugin ));
349 }
350
351 update_option('active_plugins', $current);
352}
353
354/**
355 * Activate multiple plugins.
356 *
357 * When WP_Error is returned, it does not mean that one of the plugins had
358 * errors. It means that one or more of the plugins file path was invalid.
359 *
360 * The execution will be halted as soon as one of the plugins has an error.
361 *
362 * @since unknown
363 *
364 * @param string|array $plugins
365 * @param string $redirect Redirect to page after successful activation.
366 * @return bool|WP_Error True when finished or WP_Error if there were errors during a plugin activation.
367 */
368function activate_plugins($plugins, $redirect = '') {
369 if ( !is_array($plugins) )
370 $plugins = array($plugins);
371
372 $errors = array();
373 foreach ( (array) $plugins as $plugin ) {
374 if ( !empty($redirect) )
375 $redirect = add_query_arg('plugin', $plugin, $redirect);
376 $result = activate_plugin($plugin, $redirect);
377 if ( is_wp_error($result) )
378 $errors[$plugin] = $result;
379 }
380
381 if ( !empty($errors) )
382 return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors);
383
384 return true;
385}
386
387/**
388 * Remove directory and files of a plugin for a single or list of plugin(s).
389 *
390 * If the plugins parameter list is empty, false will be returned. True when
391 * completed.
392 *
393 * @since unknown
394 *
395 * @param array $plugins List of plugin
396 * @param string $redirect Redirect to page when complete.
397 * @return mixed
398 */
399function delete_plugins($plugins, $redirect = '' ) {
400 global $wp_filesystem;
401
402 if( empty($plugins) )
403 return false;
404
405 $checked = array();
406 foreach( $plugins as $plugin )
407 $checked[] = 'checked[]=' . $plugin;
408
409 ob_start();
410 $url = wp_nonce_url('plugins.php?action=delete-selected&verify-delete=1&' . implode('&', $checked), 'bulk-manage-plugins');
411 if ( false === ($credentials = request_filesystem_credentials($url)) ) {
412 $data = ob_get_contents();
413 ob_end_clean();
414 if( ! empty($data) ){
415 include_once( ABSPATH . 'wp-admin/admin-header.php');
416 echo $data;
417 include( ABSPATH . 'wp-admin/admin-footer.php');
418 exit;
419 }
420 return;
421 }
422
423 if ( ! WP_Filesystem($credentials) ) {
424 request_filesystem_credentials($url, '', true); //Failed to connect, Error and request again
425 $data = ob_get_contents();
426 ob_end_clean();
427 if( ! empty($data) ){
428 include_once( ABSPATH . 'wp-admin/admin-header.php');
429 echo $data;
430 include( ABSPATH . 'wp-admin/admin-footer.php');
431 exit;
432 }
433 return;
434 }
435
436 if ( ! is_object($wp_filesystem) )
437 return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
438
439 if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
440 return new WP_Error('fs_error', __('Filesystem error'), $wp_filesystem->errors);
441
442 //Get the base plugin folder
443 $plugins_dir = $wp_filesystem->wp_plugins_dir();
444 if ( empty($plugins_dir) )
445 return new WP_Error('fs_no_plugins_dir', __('Unable to locate WordPress Plugin directory.'));
446
447 $plugins_dir = trailingslashit( $plugins_dir );
448
449 $errors = array();
450
451 foreach( $plugins as $plugin_file ) {
452 // Run Uninstall hook
453 if ( is_uninstallable_plugin( $plugin_file ) )
454 uninstall_plugin($plugin_file);
455
456 $this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin_file) );
457 // If plugin is in its own directory, recursively delete the directory.
458 if ( strpos($plugin_file, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory seperator AND that its not the root plugin folder
459 $deleted = $wp_filesystem->delete($this_plugin_dir, true);
460 else
461 $deleted = $wp_filesystem->delete($plugins_dir . $plugin_file);
462
463 if ( ! $deleted )
464 $errors[] = $plugin_file;
465 }
466
467 if ( ! empty($errors) )
468 return new WP_Error('could_not_remove_plugin', sprintf(__('Could not fully remove the plugin(s) %s'), implode(', ', $errors)) );
469
470 // Force refresh of plugin update information
471 if ( $current = get_transient('update_plugins') ) {
472 unset( $current->response[ $plugin_file ] );
473 set_transient('update_plugins', $current);
474 }
475
476 return true;
477}
478
479function validate_active_plugins() {
480 $check_plugins = get_option('active_plugins');
481
482 // Sanity check. If the active plugin list is not an array, make it an
483 // empty array.
484 if ( !is_array($check_plugins) ) {
485 update_option('active_plugins', array());
486 return;
487 }
488
489 //Invalid is any plugin that is deactivated due to error.
490 $invalid = array();
491
492 // If a plugin file does not exist, remove it from the list of active
493 // plugins.
494 foreach ( $check_plugins as $check_plugin ) {
495 $result = validate_plugin($check_plugin);
496 if ( is_wp_error( $result ) ) {
497 $invalid[$check_plugin] = $result;
498 deactivate_plugins( $check_plugin, true);
499 }
500 }
501 return $invalid;
502}
503
504/**
505 * Validate the plugin path.
506 *
507 * Checks that the file exists and {@link validate_file() is valid file}.
508 *
509 * @since unknown
510 *
511 * @param string $plugin Plugin Path
512 * @return WP_Error|int 0 on success, WP_Error on failure.
513 */
514function validate_plugin($plugin) {
515 if ( validate_file($plugin) )
516 return new WP_Error('plugin_invalid', __('Invalid plugin path.'));
517 if ( ! file_exists(WP_PLUGIN_DIR . '/' . $plugin) )
518 return new WP_Error('plugin_not_found', __('Plugin file does not exist.'));
519
520 $installed_plugins = get_plugins();
521 if ( ! isset($installed_plugins[$plugin]) )
522 return new WP_Error('no_plugin_header', __('The plugin does not have a valid header.'));
523 return 0;
524}
525
526/**
527 * Whether the plugin can be uninstalled.
528 *
529 * @since 2.7.0
530 *
531 * @param string $plugin Plugin path to check.
532 * @return bool Whether plugin can be uninstalled.
533 */
534function is_uninstallable_plugin($plugin) {
535 $file = plugin_basename($plugin);
536
537 $uninstallable_plugins = (array) get_option('uninstall_plugins');
538 if ( isset( $uninstallable_plugins[$file] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) )
539 return true;
540
541 return false;
542}
543
544/**
545 * Uninstall a single plugin.
546 *
547 * Calls the uninstall hook, if it is available.
548 *
549 * @since 2.7.0
550 *
551 * @param string $plugin Relative plugin path from Plugin Directory.
552 */
553function uninstall_plugin($plugin) {
554 $file = plugin_basename($plugin);
555
556 $uninstallable_plugins = (array) get_option('uninstall_plugins');
557 if ( file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) ) {
558 if ( isset( $uninstallable_plugins[$file] ) ) {
559 unset($uninstallable_plugins[$file]);
560 update_option('uninstall_plugins', $uninstallable_plugins);
561 }
562 unset($uninstallable_plugins);
563
564 define('WP_UNINSTALL_PLUGIN', $file);
565 include WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php';
566
567 return true;
568 }
569
570 if ( isset( $uninstallable_plugins[$file] ) ) {
571 $callable = $uninstallable_plugins[$file];
572 unset($uninstallable_plugins[$file]);
573 update_option('uninstall_plugins', $uninstallable_plugins);
574 unset($uninstallable_plugins);
575
576 include WP_PLUGIN_DIR . '/' . $file;
577
578 add_action( 'uninstall_' . $file, $callable );
579 do_action( 'uninstall_' . $file );
580 }
581}
582
583//
584// Menu
585//
586
587function add_menu_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '' ) {
588 global $menu, $admin_page_hooks, $_registered_pages;
589
590 $file = plugin_basename( $file );
591
592 $admin_page_hooks[$file] = sanitize_title( $menu_title );
593
594 $hookname = get_plugin_page_hookname( $file, '' );
595 if (!empty ( $function ) && !empty ( $hookname ))
596 add_action( $hookname, $function );
597
598 if ( empty($icon_url) )
599 $icon_url = 'images/generic.png';
600 elseif ( is_ssl() && 0 === strpos($icon_url, 'http://') )
601 $icon_url = 'https://' . substr($icon_url, 7);
602
603 $menu[] = array ( $menu_title, $access_level, $file, $page_title, 'menu-top ' . $hookname, $hookname, $icon_url );
604
605 $_registered_pages[$hookname] = true;
606
607 return $hookname;
608}
609
610function add_object_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '') {
611 global $menu, $admin_page_hooks, $_wp_last_object_menu, $_registered_pages;
612
613 $file = plugin_basename( $file );
614
615 $admin_page_hooks[$file] = sanitize_title( $menu_title );
616
617 $hookname = get_plugin_page_hookname( $file, '' );
618 if (!empty ( $function ) && !empty ( $hookname ))
619 add_action( $hookname, $function );
620
621 if ( empty($icon_url) )
622 $icon_url = 'images/generic.png';
623
624 $_wp_last_object_menu++;
625
626 $menu[$_wp_last_object_menu] = array ( $menu_title, $access_level, $file, $page_title, 'menu-top ' . $hookname, $hookname, $icon_url );
627
628 $_registered_pages[$hookname] = true;
629
630 return $hookname;
631}
632
633function add_utility_page( $page_title, $menu_title, $access_level, $file, $function = '', $icon_url = '') {
634 global $menu, $admin_page_hooks, $_wp_last_utility_menu, $_registered_pages;
635
636 $file = plugin_basename( $file );
637
638 $admin_page_hooks[$file] = sanitize_title( $menu_title );
639
640 $hookname = get_plugin_page_hookname( $file, '' );
641 if (!empty ( $function ) && !empty ( $hookname ))
642 add_action( $hookname, $function );
643
644 if ( empty($icon_url) )
645 $icon_url = 'images/generic.png';
646 elseif ( is_ssl() && 0 === strpos($icon_url, 'http://') )
647 $icon_url = 'https://' . substr($icon_url, 7);
648
649 $_wp_last_utility_menu++;
650
651 $menu[$_wp_last_utility_menu] = array ( $menu_title, $access_level, $file, $page_title, 'menu-top ' . $hookname, $hookname, $icon_url );
652
653 $_registered_pages[$hookname] = true;
654
655 return $hookname;
656}
657
658function add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function = '' ) {
659 global $submenu;
660 global $menu;
661 global $_wp_real_parent_file;
662 global $_wp_submenu_nopriv;
663 global $_registered_pages;
664
665 $file = plugin_basename( $file );
666
667 $parent = plugin_basename( $parent);
668 if ( isset( $_wp_real_parent_file[$parent] ) )
669 $parent = $_wp_real_parent_file[$parent];
670
671 if ( !current_user_can( $access_level ) ) {
672 $_wp_submenu_nopriv[$parent][$file] = true;
673 return false;
674 }
675
676 // If the parent doesn't already have a submenu, add a link to the parent
677 // as the first item in the submenu. If the submenu file is the same as the
678 // parent file someone is trying to link back to the parent manually. In
679 // this case, don't automatically add a link back to avoid duplication.
680 if (!isset( $submenu[$parent] ) && $file != $parent ) {
681 foreach ( (array)$menu as $parent_menu ) {
682 if ( $parent_menu[2] == $parent && current_user_can( $parent_menu[1] ) )
683 $submenu[$parent][] = $parent_menu;
684 }
685 }
686
687 $submenu[$parent][] = array ( $menu_title, $access_level, $file, $page_title );
688
689 $hookname = get_plugin_page_hookname( $file, $parent);
690 if (!empty ( $function ) && !empty ( $hookname ))
691 add_action( $hookname, $function );
692
693 $_registered_pages[$hookname] = true;
694 // backwards-compatibility for plugins using add_management page. See wp-admin/admin.php for redirect from edit.php to tools.php
695 if ( 'tools.php' == $parent )
696 $_registered_pages[get_plugin_page_hookname( $file, 'edit.php')] = true;
697
698 return $hookname;
699}
700
701/**
702 * Add sub menu page to the tools main menu.
703 *
704 * @param string $page_title
705 * @param unknown_type $menu_title
706 * @param unknown_type $access_level
707 * @param unknown_type $file
708 * @param unknown_type $function
709 * @return unknown
710 */
711function add_management_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
712 return add_submenu_page( 'tools.php', $page_title, $menu_title, $access_level, $file, $function );
713}
714
715function add_options_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
716 return add_submenu_page( 'options-general.php', $page_title, $menu_title, $access_level, $file, $function );
717}
718
719function add_theme_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
720 return add_submenu_page( 'themes.php', $page_title, $menu_title, $access_level, $file, $function );
721}
722
723function add_users_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
724 if ( current_user_can('edit_users') )
725 $parent = 'users.php';
726 else
727 $parent = 'profile.php';
728 return add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function );
729}
730
731function add_dashboard_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
732 return add_submenu_page( 'index.php', $page_title, $menu_title, $access_level, $file, $function );
733}
734
735function add_posts_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
736 return add_submenu_page( 'edit.php', $page_title, $menu_title, $access_level, $file, $function );
737}
738
739function add_media_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
740 return add_submenu_page( 'upload.php', $page_title, $menu_title, $access_level, $file, $function );
741}
742
743function add_links_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
744 return add_submenu_page( 'link-manager.php', $page_title, $menu_title, $access_level, $file, $function );
745}
746
747function add_pages_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
748 return add_submenu_page( 'edit-pages.php', $page_title, $menu_title, $access_level, $file, $function );
749}
750
751function add_comments_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
752 return add_submenu_page( 'edit-comments.php', $page_title, $menu_title, $access_level, $file, $function );
753}
754
755//
756// Pluggable Menu Support -- Private
757//
758
759function get_admin_page_parent( $parent = '' ) {
760 global $parent_file;
761 global $menu;
762 global $submenu;
763 global $pagenow;
764 global $plugin_page;
765 global $_wp_real_parent_file;
766 global $_wp_menu_nopriv;
767 global $_wp_submenu_nopriv;
768
769 if ( !empty ( $parent ) && 'admin.php' != $parent ) {
770 if ( isset( $_wp_real_parent_file[$parent] ) )
771 $parent = $_wp_real_parent_file[$parent];
772 return $parent;
773 }
774/*
775 if ( !empty ( $parent_file ) ) {
776 if ( isset( $_wp_real_parent_file[$parent_file] ) )
777 $parent_file = $_wp_real_parent_file[$parent_file];
778
779 return $parent_file;
780 }
781*/
782
783 if ( $pagenow == 'admin.php' && isset( $plugin_page ) ) {
784 foreach ( (array)$menu as $parent_menu ) {
785 if ( $parent_menu[2] == $plugin_page ) {
786 $parent_file = $plugin_page;
787 if ( isset( $_wp_real_parent_file[$parent_file] ) )
788 $parent_file = $_wp_real_parent_file[$parent_file];
789 return $parent_file;
790 }
791 }
792 if ( isset( $_wp_menu_nopriv[$plugin_page] ) ) {
793 $parent_file = $plugin_page;
794 if ( isset( $_wp_real_parent_file[$parent_file] ) )
795 $parent_file = $_wp_real_parent_file[$parent_file];
796 return $parent_file;
797 }
798 }
799
800 if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) ) {
801 $parent_file = $pagenow;
802 if ( isset( $_wp_real_parent_file[$parent_file] ) )
803 $parent_file = $_wp_real_parent_file[$parent_file];
804 return $parent_file;
805 }
806
807 foreach (array_keys( (array)$submenu ) as $parent) {
808 foreach ( $submenu[$parent] as $submenu_array ) {
809 if ( isset( $_wp_real_parent_file[$parent] ) )
810 $parent = $_wp_real_parent_file[$parent];
811 if ( $submenu_array[2] == $pagenow ) {
812 $parent_file = $parent;
813 return $parent;
814 } else
815 if ( isset( $plugin_page ) && ($plugin_page == $submenu_array[2] ) ) {
816 $parent_file = $parent;
817 return $parent;
818 }
819 }
820 }
821
822 if ( empty($parent_file) )
823 $parent_file = '';
824 return '';
825}
826
827function get_admin_page_title() {
828 global $title;
829 global $menu;
830 global $submenu;
831 global $pagenow;
832 global $plugin_page;
833
834 if ( isset( $title ) && !empty ( $title ) ) {
835 return $title;
836 }
837
838 $hook = get_plugin_page_hook( $plugin_page, $pagenow );
839
840 $parent = $parent1 = get_admin_page_parent();
841
842 if ( empty ( $parent) ) {
843 foreach ( (array)$menu as $menu_array ) {
844 if ( isset( $menu_array[3] ) ) {
845 if ( $menu_array[2] == $pagenow ) {
846 $title = $menu_array[3];
847 return $menu_array[3];
848 } else
849 if ( isset( $plugin_page ) && ($plugin_page == $menu_array[2] ) && ($hook == $menu_array[3] ) ) {
850 $title = $menu_array[3];
851 return $menu_array[3];
852 }
853 } else {
854 $title = $menu_array[0];
855 return $title;
856 }
857 }
858 } else {
859 foreach (array_keys( $submenu ) as $parent) {
860 foreach ( $submenu[$parent] as $submenu_array ) {
861 if ( isset( $plugin_page ) &&
862 ($plugin_page == $submenu_array[2] ) &&
863 (($parent == $pagenow ) || ($parent == $plugin_page ) || ($plugin_page == $hook ) || (($pagenow == 'admin.php' ) && ($parent1 != $submenu_array[2] ) ) )
864 ) {
865 $title = $submenu_array[3];
866 return $submenu_array[3];
867 }
868
869 if ( $submenu_array[2] != $pagenow || isset( $_GET['page'] ) ) // not the current page
870 continue;
871
872 if ( isset( $submenu_array[3] ) ) {
873 $title = $submenu_array[3];
874 return $submenu_array[3];
875 } else {
876 $title = $submenu_array[0];
877 return $title;
878 }
879 }
880 }
881 if ( !isset($title) || empty ( $title ) ) {
882 foreach ( $menu as $menu_array ) {
883 if ( isset( $plugin_page ) &&
884 ($plugin_page == $menu_array[2] ) &&
885 ($pagenow == 'admin.php' ) &&
886 ($parent1 == $menu_array[2] ) )
887 {
888 $title = $menu_array[3];
889 return $menu_array[3];
890 }
891 }
892 }
893 }
894
895 return $title;
896}
897
898function get_plugin_page_hook( $plugin_page, $parent_page ) {
899 $hook = get_plugin_page_hookname( $plugin_page, $parent_page );
900 if ( has_action($hook) )
901 return $hook;
902 else
903 return null;
904}
905
906function get_plugin_page_hookname( $plugin_page, $parent_page ) {
907 global $admin_page_hooks;
908
909 $parent = get_admin_page_parent( $parent_page );
910
911 $page_type = 'admin';
912 if ( empty ( $parent_page ) || 'admin.php' == $parent_page || isset( $admin_page_hooks[$plugin_page] ) ) {
913 if ( isset( $admin_page_hooks[$plugin_page] ) )
914 $page_type = 'toplevel';
915 else
916 if ( isset( $admin_page_hooks[$parent] ))
917 $page_type = $admin_page_hooks[$parent];
918 } else if ( isset( $admin_page_hooks[$parent] ) ) {
919 $page_type = $admin_page_hooks[$parent];
920 }
921
922 $plugin_name = preg_replace( '!\.php!', '', $plugin_page );
923
924 return $page_type.'_page_'.$plugin_name;
925}
926
927function user_can_access_admin_page() {
928 global $pagenow;
929 global $menu;
930 global $submenu;
931 global $_wp_menu_nopriv;
932 global $_wp_submenu_nopriv;
933 global $plugin_page;
934 global $_registered_pages;
935
936 $parent = get_admin_page_parent();
937
938 if ( !isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$parent][$pagenow] ) )
939 return false;
940
941 if ( isset( $plugin_page ) ) {
942 if ( isset( $_wp_submenu_nopriv[$parent][$plugin_page] ) )
943 return false;
944
945 $hookname = get_plugin_page_hookname($plugin_page, $parent);
946 if ( !isset($_registered_pages[$hookname]) )
947 return false;
948 }
949
950 if ( empty( $parent) ) {
951 if ( isset( $_wp_menu_nopriv[$pagenow] ) )
952 return false;
953 if ( isset( $_wp_submenu_nopriv[$pagenow][$pagenow] ) )
954 return false;
955 if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) )
956 return false;
957 if ( isset( $plugin_page ) && isset( $_wp_menu_nopriv[$plugin_page] ) )
958 return false;
959 foreach (array_keys( $_wp_submenu_nopriv ) as $key ) {
960 if ( isset( $_wp_submenu_nopriv[$key][$pagenow] ) )
961 return false;
962 if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$key][$plugin_page] ) )
963 return false;
964 }
965 return true;
966 }
967
968 if ( isset( $plugin_page ) && ( $plugin_page == $parent ) && isset( $_wp_menu_nopriv[$plugin_page] ) )
969 return false;
970
971 if ( isset( $submenu[$parent] ) ) {
972 foreach ( $submenu[$parent] as $submenu_array ) {
973 if ( isset( $plugin_page ) && ( $submenu_array[2] == $plugin_page ) ) {
974 if ( current_user_can( $submenu_array[1] ))
975 return true;
976 else
977 return false;
978 } else if ( $submenu_array[2] == $pagenow ) {
979 if ( current_user_can( $submenu_array[1] ))
980 return true;
981 else
982 return false;
983 }
984 }
985 }
986
987 foreach ( $menu as $menu_array ) {
988 if ( $menu_array[2] == $parent) {
989 if ( current_user_can( $menu_array[1] ))
990 return true;
991 else
992 return false;
993 }
994 }
995
996 return true;
997}
998
999/* Whitelist functions */
1000
1001/**
1002 * Register a setting and its sanitization callback
1003 *
1004 * @since 2.7.0
1005 *
1006 * @param string $option_group A settings group name. Can be anything.
1007 * @param string $option_name The name of an option to sanitize and save.
1008 * @param unknown_type $sanitize_callback A callback function that sanitizes the option's value.
1009 * @return unknown
1010 */
1011function register_setting($option_group, $option_name, $sanitize_callback = '') {
1012 return add_option_update_handler($option_group, $option_name, $sanitize_callback);
1013}
1014
1015/**
1016 * Unregister a setting
1017 *
1018 * @since 2.7.0
1019 *
1020 * @param unknown_type $option_group
1021 * @param unknown_type $option_name
1022 * @param unknown_type $sanitize_callback
1023 * @return unknown
1024 */
1025function unregister_setting($option_group, $option_name, $sanitize_callback = '') {
1026 return remove_option_update_handler($option_group, $option_name, $sanitize_callback);
1027}
1028
1029/**
1030 * {@internal Missing Short Description}}
1031 *
1032 * @since unknown
1033 *
1034 * @param unknown_type $option_group
1035 * @param unknown_type $option_name
1036 * @param unknown_type $sanitize_callback
1037 */
1038function add_option_update_handler($option_group, $option_name, $sanitize_callback = '') {
1039 global $new_whitelist_options;
1040 $new_whitelist_options[ $option_group ][] = $option_name;
1041 if ( $sanitize_callback != '' )
1042 add_filter( "sanitize_option_{$option_name}", $sanitize_callback );
1043}
1044
1045/**
1046 * {@internal Missing Short Description}}
1047 *
1048 * @since unknown
1049 *
1050 * @param unknown_type $option_group
1051 * @param unknown_type $option_name
1052 * @param unknown_type $sanitize_callback
1053 */
1054function remove_option_update_handler($option_group, $option_name, $sanitize_callback = '') {
1055 global $new_whitelist_options;
1056 $pos = array_search( $option_name, (array) $new_whitelist_options );
1057 if ( $pos !== false )
1058 unset( $new_whitelist_options[ $option_group ][ $pos ] );
1059 if ( $sanitize_callback != '' )
1060 remove_filter( "sanitize_option_{$option_name}", $sanitize_callback );
1061}
1062
1063/**
1064 * {@internal Missing Short Description}}
1065 *
1066 * @since unknown
1067 *
1068 * @param unknown_type $options
1069 * @return unknown
1070 */
1071function option_update_filter( $options ) {
1072 global $new_whitelist_options;
1073
1074 if ( is_array( $new_whitelist_options ) )
1075 $options = add_option_whitelist( $new_whitelist_options, $options );
1076
1077 return $options;
1078}
1079add_filter( 'whitelist_options', 'option_update_filter' );
1080
1081/**
1082 * {@internal Missing Short Description}}
1083 *
1084 * @since unknown
1085 *
1086 * @param unknown_type $new_options
1087 * @param unknown_type $options
1088 * @return unknown
1089 */
1090function add_option_whitelist( $new_options, $options = '' ) {
1091 if( $options == '' ) {
1092 global $whitelist_options;
1093 } else {
1094 $whitelist_options = $options;
1095 }
1096 foreach( $new_options as $page => $keys ) {
1097 foreach( $keys as $key ) {
1098 if ( !isset($whitelist_options[ $page ]) || !is_array($whitelist_options[ $page ]) ) {
1099 $whitelist_options[ $page ] = array();
1100 $whitelist_options[ $page ][] = $key;
1101 } else {
1102 $pos = array_search( $key, $whitelist_options[ $page ] );
1103 if ( $pos === false )
1104 $whitelist_options[ $page ][] = $key;
1105 }
1106 }
1107 }
1108 return $whitelist_options;
1109}
1110
1111/**
1112 * {@internal Missing Short Description}}
1113 *
1114 * @since unknown
1115 *
1116 * @param unknown_type $del_options
1117 * @param unknown_type $options
1118 * @return unknown
1119 */
1120function remove_option_whitelist( $del_options, $options = '' ) {
1121 if( $options == '' ) {
1122 global $whitelist_options;
1123 } else {
1124 $whitelist_options = $options;
1125 }
1126 foreach( $del_options as $page => $keys ) {
1127 foreach( $keys as $key ) {
1128 if ( isset($whitelist_options[ $page ]) && is_array($whitelist_options[ $page ]) ) {
1129 $pos = array_search( $key, $whitelist_options[ $page ] );
1130 if( $pos !== false )
1131 unset( $whitelist_options[ $page ][ $pos ] );
1132 }
1133 }
1134 }
1135 return $whitelist_options;
1136}
1137
1138/**
1139 * Output nonce, action, and option_page fields for a settings page.
1140 *
1141 * @since 2.7.0
1142 *
1143 * @param string $option_group A settings group name. This should match the group name used in register_setting().
1144 */
1145function settings_fields($option_group) {
1146 echo "<input type='hidden' name='option_page' value='" . esc_attr($option_group) . "' />";
1147 echo '<input type="hidden" name="action" value="update" />';
1148 wp_nonce_field("$option_group-options");
1149}
1150
1151?>
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