688 lines
20 KiB
PHP
688 lines
20 KiB
PHP
<?php
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/**
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* WordPress Plugin Administration API
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* Parse the plugin contents to retrieve plugin's metadata.
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*
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* The metadata of the plugin's data searches for the following in the plugin's
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* header. All plugin data must be on its own line. For plugin description, it
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* must not have any newlines or only parts of the description will be displayed
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* and the same goes for the plugin data. The below is formatted for printing.
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*
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* <code>
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* /*
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* Plugin Name: Name of Plugin
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* Plugin URI: Link to plugin information
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* Description: Plugin Description
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* Author: Plugin author's name
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* Author URI: Link to the author's web site
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* Version: Must be set in the plugin for WordPress 2.3+
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* Text Domain: Optional. Unique identifier, should be same as the one used in
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* plugin_text_domain()
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* Domain Path: Optional. Only useful if the translations are located in a
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* folder above the plugin's base path. For example, if .mo files are
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* located in the locale folder then Domain Path will be "/locale/" and
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* must have the first slash. Defaults to the base folder the plugin is
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* located in.
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* * / # Remove the space to close comment
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* </code>
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*
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* Plugin data returned array contains the following:
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* 'Name' - Name of the plugin, must be unique.
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* 'Title' - Title of the plugin and the link to the plugin's web site.
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* 'Description' - Description of what the plugin does and/or notes
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* from the author.
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* 'Author' - The author's name
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* 'AuthorURI' - The authors web site address.
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* 'Version' - The plugin version number.
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* 'PluginURI' - Plugin web site address.
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* 'TextDomain' - Plugin's text domain for localization.
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* 'DomainPath' - Plugin's relative directory path to .mo files.
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*
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* Some users have issues with opening large files and manipulating the contents
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* for want is usually the first 1kiB or 2kiB. This function stops pulling in
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* the plugin contents when it has all of the required plugin data.
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*
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* The first 8kiB of the file will be pulled in and if the plugin data is not
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* within that first 8kiB, then the plugin author should correct their plugin
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* and move the plugin data headers to the top.
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*
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* The plugin file is assumed to have permissions to allow for scripts to read
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* the file. This is not checked however and the file is only opened for
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* reading.
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*
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* @link http://trac.wordpress.org/ticket/5651 Previous Optimizations.
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* @link http://trac.wordpress.org/ticket/7372 Further and better Optimizations.
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* @since 1.5.0
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*
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* @param string $plugin_file Path to the plugin file
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* @return array See above for description.
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*/
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function get_plugin_data( $plugin_file ) {
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// We don't need to write to the file, so just open for reading.
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$fp = fopen($plugin_file, 'r');
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// Pull only the first 8kiB of the file in.
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$plugin_data = fread( $fp, 8192 );
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// PHP will close file handle, but we are good citizens.
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fclose($fp);
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preg_match( '|Plugin Name:(.*)$|mi', $plugin_data, $name );
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preg_match( '|Plugin URI:(.*)$|mi', $plugin_data, $uri );
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preg_match( '|Version:(.*)|i', $plugin_data, $version );
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preg_match( '|Description:(.*)$|mi', $plugin_data, $description );
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preg_match( '|Author:(.*)$|mi', $plugin_data, $author_name );
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preg_match( '|Author URI:(.*)$|mi', $plugin_data, $author_uri );
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preg_match( '|Text Domain:(.*)$|mi', $plugin_data, $text_domain );
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preg_match( '|Domain Path:(.*)$|mi', $plugin_data, $domain_path );
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foreach ( array( 'name', 'uri', 'version', 'description', 'author_name', 'author_uri', 'text_domain', 'domain_path' ) as $field ) {
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if ( !empty( ${$field} ) )
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${$field} = trim(${$field}[1]);
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else
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${$field} = '';
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}
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return array(
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'Name' => $name, 'PluginURI' => $uri, 'Description' => $description,
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'Author' => $author_name, 'AuthorURI' => $author_uri, 'Version' => $version,
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'TextDomain' => $text_domain, 'DomainPath' => $domain_path
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);
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}
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function get_plugins($plugin_folder = '') {
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if ( ! $cache_plugins = wp_cache_get('plugins', 'plugins') )
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$cache_plugins = array();
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if ( isset($cache_plugins[ $plugin_folder ]) )
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return $cache_plugins[ $plugin_folder ];
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$wp_plugins = array ();
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$plugin_root = WP_PLUGIN_DIR;
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if( !empty($plugin_folder) )
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$plugin_root .= $plugin_folder;
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// Files in wp-content/plugins directory
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$plugins_dir = @ opendir( $plugin_root);
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if ( $plugins_dir ) {
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while (($file = readdir( $plugins_dir ) ) !== false ) {
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if ( substr($file, 0, 1) == '.' )
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continue;
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if ( is_dir( $plugin_root.'/'.$file ) ) {
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$plugins_subdir = @ opendir( $plugin_root.'/'.$file );
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if ( $plugins_subdir ) {
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while (($subfile = readdir( $plugins_subdir ) ) !== false ) {
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if ( substr($subfile, 0, 1) == '.' )
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continue;
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if ( substr($subfile, -4) == '.php' )
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$plugin_files[] = "$file/$subfile";
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}
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}
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} else {
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if ( substr($file, -4) == '.php' )
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$plugin_files[] = $file;
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}
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}
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}
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@closedir( $plugins_dir );
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@closedir( $plugins_subdir );
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if ( !$plugins_dir || !$plugin_files )
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return $wp_plugins;
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foreach ( $plugin_files as $plugin_file ) {
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if ( !is_readable( "$plugin_root/$plugin_file" ) )
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continue;
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$plugin_data = get_plugin_data( "$plugin_root/$plugin_file" );
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if ( empty ( $plugin_data['Name'] ) )
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continue;
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$wp_plugins[plugin_basename( $plugin_file )] = $plugin_data;
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}
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uasort( $wp_plugins, create_function( '$a, $b', 'return strnatcasecmp( $a["Name"], $b["Name"] );' ));
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$cache_plugins[ $plugin_folder ] = $wp_plugins;
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wp_cache_set('plugins', $cache_plugins, 'plugins');
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return $wp_plugins;
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}
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/**
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* Check whether the plugin is active by checking the active_plugins list.
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*
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* @since 2.5.0
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*
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* @param string $plugin Base plugin path from plugins directory.
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* @return bool True, if in the active plugins list. False, not in the list.
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*/
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function is_plugin_active($plugin) {
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return in_array($plugin, get_option('active_plugins'));
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}
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function activate_plugin($plugin, $redirect = '') {
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$current = get_option('active_plugins');
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$plugin = trim($plugin);
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$valid = validate_plugin($plugin);
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if ( is_wp_error($valid) )
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return $valid;
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if ( !in_array($plugin, $current) ) {
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if ( !empty($redirect) )
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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
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ob_start();
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@include(WP_PLUGIN_DIR . '/' . $plugin);
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$current[] = $plugin;
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sort($current);
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update_option('active_plugins', $current);
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do_action('activate_' . $plugin);
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ob_end_clean();
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}
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return null;
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}
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function deactivate_plugins($plugins, $silent= false) {
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$current = get_option('active_plugins');
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if ( !is_array($plugins) )
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$plugins = array($plugins);
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foreach ( $plugins as $plugin ) {
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if( ! is_plugin_active($plugin) )
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continue;
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array_splice($current, array_search( $plugin, $current), 1 ); // Fixed Array-fu!
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if ( ! $silent ) //Used by Plugin updater to internally deactivate plugin, however, not to notify plugins of the fact to prevent plugin output.
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do_action('deactivate_' . trim( $plugin ));
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}
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update_option('active_plugins', $current);
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}
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function activate_plugins($plugins, $redirect = '') {
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if ( !is_array($plugins) )
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$plugins = array($plugins);
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$errors = array();
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foreach ( (array) $plugins as $plugin ) {
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if ( !empty($redirect) )
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$redirect = add_query_arg('plugin', $plugin, $redirect);
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$result = activate_plugin($plugin, $redirect);
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if ( is_wp_error($result) )
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$errors[$plugin] = $result;
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}
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if ( !empty($errors) )
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return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors);
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return true;
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}
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function delete_plugins($plugins, $redirect = '' ) {
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global $wp_filesystem;
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if( empty($plugins) )
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return false;
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$checked = array();
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foreach( $plugins as $plugin )
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$checked[] = 'checked[]=' . $plugin;
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ob_start();
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$url = wp_nonce_url('plugins.php?action=delete-selected&verify-delete=1&' . implode('&', $checked), 'bulk-manage-plugins');
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if ( false === ($credentials = request_filesystem_credentials($url)) ) {
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$data = ob_get_contents();
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ob_end_clean();
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if( ! empty($data) ){
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include_once( ABSPATH . 'wp-admin/admin-header.php');
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echo $data;
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include( ABSPATH . 'wp-admin/admin-footer.php');
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exit;
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}
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return;
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}
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if ( ! WP_Filesystem($credentials) ) {
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request_filesystem_credentials($url, '', true); //Failed to connect, Error and request again
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$data = ob_get_contents();
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ob_end_clean();
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if( ! empty($data) ){
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include_once( ABSPATH . 'wp-admin/admin-header.php');
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echo $data;
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include( ABSPATH . 'wp-admin/admin-footer.php');
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exit;
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}
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return;
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}
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if ( $wp_filesystem->errors->get_error_code() ) {
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return $wp_filesystem->errors;
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}
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if ( ! is_object($wp_filesystem) )
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return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
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if ( $wp_filesystem->errors->get_error_code() )
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return new WP_Error('fs_error', __('Filesystem error'), $wp_filesystem->errors);
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//Get the base plugin folder
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$plugins_dir = $wp_filesystem->wp_plugins_dir();
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if ( empty($plugins_dir) )
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return new WP_Error('fs_no_plugins_dir', __('Unable to locate WordPress Plugin directory.'));
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$plugins_dir = trailingslashit( $plugins_dir );
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$errors = array();
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foreach( $plugins as $plugin_file ) {
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// Run Uninstall hook
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if ( is_uninstallable_plugin( $plugin_file ) )
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uninstall_plugin($plugin_file);
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$this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin_file) );
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// If plugin is in its own directory, recursively delete the directory.
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if ( strpos($plugin_file, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory seperator AND that its not the root plugin folder
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$deleted = $wp_filesystem->delete($this_plugin_dir, true);
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else
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$deleted = $wp_filesystem->delete($plugins_dir . $plugin_file);
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if ( ! $deleted )
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$errors[] = $plugin_file;
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}
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if( ! empty($errors) )
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return new WP_Error('could_not_remove_plugin', sprintf(__('Could not fully remove the plugin(s) %s'), implode(', ', $errors)) );
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return true;
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}
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function validate_active_plugins() {
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$check_plugins = get_option('active_plugins');
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// Sanity check. If the active plugin list is not an array, make it an
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// empty array.
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if ( !is_array($check_plugins) ) {
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update_option('active_plugins', array());
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return;
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}
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//Invalid is any plugin that is deactivated due to error.
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$invalid = array();
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// If a plugin file does not exist, remove it from the list of active
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// plugins.
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foreach ( $check_plugins as $check_plugin ) {
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$result = validate_plugin($check_plugin);
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if ( is_wp_error( $result ) ) {
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$invalid[$check_plugin] = $result;
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deactivate_plugins( $check_plugin, true);
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}
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}
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return $invalid;
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}
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function validate_plugin($plugin) {
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if ( validate_file($plugin) )
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return new WP_Error('plugin_invalid', __('Invalid plugin path.'));
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if ( ! file_exists(WP_PLUGIN_DIR . '/' . $plugin) )
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return new WP_Error('plugin_not_found', __('Plugin file does not exist.'));
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return 0;
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}
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/**
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* Whether the plugin can be uninstalled.
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*
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* @since 2.7
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*
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* @param string $plugin Plugin path to check.
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* @return bool Whether plugin can be uninstalled.
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*/
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function is_uninstallable_plugin($plugin) {
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$file = plugin_basename($plugin);
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$uninstallable_plugins = (array) get_option('uninstall_plugins');
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if ( isset( $uninstallable_plugins[$file] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) )
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return true;
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return false;
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}
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/**
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* Uninstall a single plugin.
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*
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* Calls the uninstall hook, if it is available.
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*
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* @since 2.7
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*
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* @param string $plugin Relative plugin path from Plugin Directory.
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*/
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function uninstall_plugin($plugin) {
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$file = plugin_basename($plugin);
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$uninstallable_plugins = (array) get_option('uninstall_plugins');
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if ( file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) ) {
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if ( isset( $uninstallable_plugins[$file] ) ) {
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unset($uninstallable_plugins[$file]);
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update_option('uninstall_plugins', $uninstallable_plugins);
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}
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unset($uninstallable_plugins);
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define('WP_UNINSTALL_PLUGIN', $file);
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include WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php';
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return true;
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}
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if ( isset( $uninstallable_plugins[$file] ) ) {
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$callable = $uninstallable_plugins[$file];
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unset($uninstallable_plugins[$file]);
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update_option('uninstall_plugins', $uninstallable_plugins);
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unset($uninstallable_plugins);
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include WP_PLUGIN_DIR . '/' . $file;
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add_action( 'uninstall_' . $file, $callable );
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do_action( 'uninstall_' . $file );
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}
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}
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//
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// Menu
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//
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function add_menu_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
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global $menu, $admin_page_hooks;
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$file = plugin_basename( $file );
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$menu[] = array ( $menu_title, $access_level, $file, $page_title );
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$admin_page_hooks[$file] = sanitize_title( $menu_title );
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$hookname = get_plugin_page_hookname( $file, '' );
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if (!empty ( $function ) && !empty ( $hookname ))
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add_action( $hookname, $function );
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return $hookname;
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}
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function add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function = '' ) {
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global $submenu;
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global $menu;
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global $_wp_real_parent_file;
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global $_wp_submenu_nopriv;
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$file = plugin_basename( $file );
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$parent = plugin_basename( $parent);
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if ( isset( $_wp_real_parent_file[$parent] ) )
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$parent = $_wp_real_parent_file[$parent];
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if ( !current_user_can( $access_level ) ) {
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$_wp_submenu_nopriv[$parent][$file] = true;
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return false;
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}
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// If the parent doesn't already have a submenu, add a link to the parent
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// as the first item in the submenu. If the submenu file is the same as the
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// parent file someone is trying to link back to the parent manually. In
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// this case, don't automatically add a link back to avoid duplication.
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if (!isset( $submenu[$parent] ) && $file != $parent ) {
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foreach ( $menu as $parent_menu ) {
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if ( $parent_menu[2] == $parent && current_user_can( $parent_menu[1] ) )
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$submenu[$parent][] = $parent_menu;
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}
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}
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$submenu[$parent][] = array ( $menu_title, $access_level, $file, $page_title );
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$hookname = get_plugin_page_hookname( $file, $parent);
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if (!empty ( $function ) && !empty ( $hookname ))
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add_action( $hookname, $function );
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return $hookname;
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}
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function add_management_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
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return add_submenu_page( 'edit.php', $page_title, $menu_title, $access_level, $file, $function );
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}
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function add_options_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
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return add_submenu_page( 'options-general.php', $page_title, $menu_title, $access_level, $file, $function );
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}
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function add_theme_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
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return add_submenu_page( 'themes.php', $page_title, $menu_title, $access_level, $file, $function );
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}
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function add_users_page( $page_title, $menu_title, $access_level, $file, $function = '' ) {
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if ( current_user_can('edit_users') )
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$parent = 'users.php';
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else
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$parent = 'profile.php';
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return add_submenu_page( $parent, $page_title, $menu_title, $access_level, $file, $function );
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}
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//
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// Pluggable Menu Support -- Private
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//
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function get_admin_page_parent() {
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global $parent_file;
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global $menu;
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global $submenu;
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global $pagenow;
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global $plugin_page;
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global $_wp_real_parent_file;
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global $_wp_menu_nopriv;
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global $_wp_submenu_nopriv;
|
|
|
|
if ( !empty ( $parent_file ) ) {
|
|
if ( isset( $_wp_real_parent_file[$parent_file] ) )
|
|
$parent_file = $_wp_real_parent_file[$parent_file];
|
|
|
|
return $parent_file;
|
|
}
|
|
|
|
if ( $pagenow == 'admin.php' && isset( $plugin_page ) ) {
|
|
foreach ( $menu as $parent_menu ) {
|
|
if ( $parent_menu[2] == $plugin_page ) {
|
|
$parent_file = $plugin_page;
|
|
if ( isset( $_wp_real_parent_file[$parent_file] ) )
|
|
$parent_file = $_wp_real_parent_file[$parent_file];
|
|
return $parent_file;
|
|
}
|
|
}
|
|
if ( isset( $_wp_menu_nopriv[$plugin_page] ) ) {
|
|
$parent_file = $plugin_page;
|
|
if ( isset( $_wp_real_parent_file[$parent_file] ) )
|
|
$parent_file = $_wp_real_parent_file[$parent_file];
|
|
return $parent_file;
|
|
}
|
|
}
|
|
|
|
if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) ) {
|
|
$parent_file = $pagenow;
|
|
if ( isset( $_wp_real_parent_file[$parent_file] ) )
|
|
$parent_file = $_wp_real_parent_file[$parent_file];
|
|
return $parent_file;
|
|
}
|
|
|
|
foreach (array_keys( $submenu ) as $parent) {
|
|
foreach ( $submenu[$parent] as $submenu_array ) {
|
|
if ( isset( $_wp_real_parent_file[$parent] ) )
|
|
$parent = $_wp_real_parent_file[$parent];
|
|
if ( $submenu_array[2] == $pagenow ) {
|
|
$parent_file = $parent;
|
|
return $parent;
|
|
} else
|
|
if ( isset( $plugin_page ) && ($plugin_page == $submenu_array[2] ) ) {
|
|
$parent_file = $parent;
|
|
return $parent;
|
|
}
|
|
}
|
|
}
|
|
|
|
$parent_file = '';
|
|
return '';
|
|
}
|
|
|
|
function get_admin_page_title() {
|
|
global $title;
|
|
global $menu;
|
|
global $submenu;
|
|
global $pagenow;
|
|
global $plugin_page;
|
|
|
|
if ( isset( $title ) && !empty ( $title ) ) {
|
|
return $title;
|
|
}
|
|
|
|
$hook = get_plugin_page_hook( $plugin_page, $pagenow );
|
|
|
|
$parent = $parent1 = get_admin_page_parent();
|
|
if ( empty ( $parent) ) {
|
|
foreach ( $menu as $menu_array ) {
|
|
if ( isset( $menu_array[3] ) ) {
|
|
if ( $menu_array[2] == $pagenow ) {
|
|
$title = $menu_array[3];
|
|
return $menu_array[3];
|
|
} else
|
|
if ( isset( $plugin_page ) && ($plugin_page == $menu_array[2] ) && ($hook == $menu_array[3] ) ) {
|
|
$title = $menu_array[3];
|
|
return $menu_array[3];
|
|
}
|
|
} else {
|
|
$title = $menu_array[0];
|
|
return $title;
|
|
}
|
|
}
|
|
} else {
|
|
foreach (array_keys( $submenu ) as $parent) {
|
|
foreach ( $submenu[$parent] as $submenu_array ) {
|
|
if ( isset( $plugin_page ) &&
|
|
($plugin_page == $submenu_array[2] ) &&
|
|
(($parent == $pagenow ) || ($parent == $plugin_page ) || ($plugin_page == $hook ) || (($pagenow == 'admin.php' ) && ($parent1 != $submenu_array[2] ) ) )
|
|
) {
|
|
$title = $submenu_array[3];
|
|
return $submenu_array[3];
|
|
}
|
|
|
|
if ( $submenu_array[2] != $pagenow || isset( $_GET['page'] ) ) // not the current page
|
|
continue;
|
|
|
|
if ( isset( $submenu_array[3] ) ) {
|
|
$title = $submenu_array[3];
|
|
return $submenu_array[3];
|
|
} else {
|
|
$title = $submenu_array[0];
|
|
return $title;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $title;
|
|
}
|
|
|
|
function get_plugin_page_hook( $plugin_page, $parent_page ) {
|
|
$hook = get_plugin_page_hookname( $plugin_page, $parent_page );
|
|
if ( has_action($hook) )
|
|
return $hook;
|
|
else
|
|
return null;
|
|
}
|
|
|
|
function get_plugin_page_hookname( $plugin_page, $parent_page ) {
|
|
global $admin_page_hooks;
|
|
|
|
$parent = get_admin_page_parent();
|
|
|
|
$page_type = 'admin';
|
|
if ( empty ( $parent_page ) || 'admin.php' == $parent_page ) {
|
|
if ( isset( $admin_page_hooks[$plugin_page] ))
|
|
$page_type = 'toplevel';
|
|
else
|
|
if ( isset( $admin_page_hooks[$parent] ))
|
|
$page_type = $admin_page_hooks[$parent];
|
|
} else if ( isset( $admin_page_hooks[$parent_page] ) ) {
|
|
$page_type = $admin_page_hooks[$parent_page];
|
|
}
|
|
|
|
$plugin_name = preg_replace( '!\.php!', '', $plugin_page );
|
|
|
|
return $page_type.'_page_'.$plugin_name;
|
|
}
|
|
|
|
function user_can_access_admin_page() {
|
|
global $pagenow;
|
|
global $menu;
|
|
global $submenu;
|
|
global $_wp_menu_nopriv;
|
|
global $_wp_submenu_nopriv;
|
|
global $plugin_page;
|
|
|
|
$parent = get_admin_page_parent();
|
|
|
|
if ( isset( $_wp_submenu_nopriv[$parent][$pagenow] ) )
|
|
return false;
|
|
|
|
if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$parent][$plugin_page] ) )
|
|
return false;
|
|
|
|
if ( empty( $parent) ) {
|
|
if ( isset( $_wp_menu_nopriv[$pagenow] ) )
|
|
return false;
|
|
if ( isset( $_wp_submenu_nopriv[$pagenow][$pagenow] ) )
|
|
return false;
|
|
if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) )
|
|
return false;
|
|
foreach (array_keys( $_wp_submenu_nopriv ) as $key ) {
|
|
if ( isset( $_wp_submenu_nopriv[$key][$pagenow] ) )
|
|
return false;
|
|
if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$key][$plugin_page] ) )
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if ( isset( $submenu[$parent] ) ) {
|
|
foreach ( $submenu[$parent] as $submenu_array ) {
|
|
if ( isset( $plugin_page ) && ( $submenu_array[2] == $plugin_page ) ) {
|
|
if ( current_user_can( $submenu_array[1] ))
|
|
return true;
|
|
else
|
|
return false;
|
|
} else if ( $submenu_array[2] == $pagenow ) {
|
|
if ( current_user_can( $submenu_array[1] ))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach ( $menu as $menu_array ) {
|
|
if ( $menu_array[2] == $parent) {
|
|
if ( current_user_can( $menu_array[1] ))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
?>
|