493 lines
14 KiB
PHP
493 lines
14 KiB
PHP
<?php
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function get_plugin_data( $plugin_file ) {
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$plugin_data = implode( '', file( $plugin_file ));
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preg_match( '|Plugin Name:(.*)$|mi', $plugin_data, $plugin_name );
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preg_match( '|Plugin URI:(.*)$|mi', $plugin_data, $plugin_uri );
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preg_match( '|Description:(.*)$|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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if ( preg_match( "|Version:(.*)|i", $plugin_data, $version ))
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$version = trim( $version[1] );
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else
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$version = '';
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$description = wptexturize( trim( $description[1] ));
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$name = $plugin_name[1];
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$name = trim( $name );
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$plugin = $name;
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if ('' != trim($plugin_uri[1]) && '' != $name ) {
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$plugin = '<a href="' . trim( $plugin_uri[1] ) . '" title="'.__( 'Visit plugin homepage' ).'">'.$plugin.'</a>';
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}
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if ('' == $author_uri[1] ) {
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$author = trim( $author_name[1] );
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} else {
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$author = '<a href="' . trim( $author_uri[1] ) . '" title="'.__( 'Visit author homepage' ).'">' . trim( $author_name[1] ) . '</a>';
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}
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return array('Name' => $name, 'Title' => $plugin, 'Description' => $description, 'Author' => $author, 'Version' => $version);
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}
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function get_plugins($plugin_folder = '') {
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global $wp_plugins;
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if ( isset( $wp_plugins ) ) {
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return $wp_plugins;
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}
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$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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return $wp_plugins;
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}
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function is_plugin_active($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', $current);
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}
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function deactivate_all_plugins() {
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$current = get_option('active_plugins');
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if ( empty($current) )
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return;
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deactivate_plugins($current);
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update_option('deactivated_plugins', $current);
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}
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function reactivate_all_plugins($redirect = '') {
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$plugins = get_option('deactivated_plugins');
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if ( empty($plugins) )
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return;
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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), $redirect));
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$errors = array();
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foreach ( (array) $plugins as $plugin ) {
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$result = activate_plugin($plugin);
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if ( is_wp_error($result) )
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$errors[$plugin] = $result;
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}
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delete_option('deactivated_plugins');
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if ( !empty($errors) )
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return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors);
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return true;
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}
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function validate_active_plugins() {
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$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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// 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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if ( !file_exists(WP_PLUGIN_DIR . '/' . $check_plugin) ) {
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$current = get_option('active_plugins');
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$key = array_search($check_plugin, $current);
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if ( false !== $key && NULL !== $key ) {
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unset($current[$key]);
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update_option('active_plugins', $current);
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}
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}
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}
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}
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function validate_plugin($plugin) {
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if ( validate_file($plugin) )
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return new WP_Error('plugin_invalid', __('Invalid plugin.'));
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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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// 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;
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if ( !empty ( $parent_file ) ) {
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if ( isset( $_wp_real_parent_file[$parent_file] ) )
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$parent_file = $_wp_real_parent_file[$parent_file];
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return $parent_file;
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}
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if ( $pagenow == 'admin.php' && isset( $plugin_page ) ) {
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foreach ( $menu as $parent_menu ) {
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if ( $parent_menu[2] == $plugin_page ) {
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$parent_file = $plugin_page;
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if ( isset( $_wp_real_parent_file[$parent_file] ) )
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$parent_file = $_wp_real_parent_file[$parent_file];
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return $parent_file;
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}
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}
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if ( isset( $_wp_menu_nopriv[$plugin_page] ) ) {
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$parent_file = $plugin_page;
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if ( isset( $_wp_real_parent_file[$parent_file] ) )
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$parent_file = $_wp_real_parent_file[$parent_file];
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return $parent_file;
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}
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}
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if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) ) {
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$parent_file = $pagenow;
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if ( isset( $_wp_real_parent_file[$parent_file] ) )
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$parent_file = $_wp_real_parent_file[$parent_file];
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return $parent_file;
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}
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foreach (array_keys( $submenu ) as $parent) {
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foreach ( $submenu[$parent] as $submenu_array ) {
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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 ( $submenu_array[2] == $pagenow ) {
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$parent_file = $parent;
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return $parent;
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} else
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if ( isset( $plugin_page ) && ($plugin_page == $submenu_array[2] ) ) {
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$parent_file = $parent;
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return $parent;
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}
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}
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}
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$parent_file = '';
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return '';
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}
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function get_admin_page_title() {
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global $title;
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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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if ( isset( $title ) && !empty ( $title ) ) {
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return $title;
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}
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$hook = get_plugin_page_hook( $plugin_page, $pagenow );
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$parent = $parent1 = get_admin_page_parent();
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if ( empty ( $parent) ) {
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foreach ( $menu as $menu_array ) {
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if ( isset( $menu_array[3] ) ) {
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if ( $menu_array[2] == $pagenow ) {
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$title = $menu_array[3];
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return $menu_array[3];
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} else
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if ( isset( $plugin_page ) && ($plugin_page == $menu_array[2] ) && ($hook == $menu_array[3] ) ) {
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$title = $menu_array[3];
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return $menu_array[3];
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}
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} else {
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$title = $menu_array[0];
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return $title;
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}
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}
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} else {
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foreach (array_keys( $submenu ) as $parent) {
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foreach ( $submenu[$parent] as $submenu_array ) {
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if ( isset( $plugin_page ) &&
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($plugin_page == $submenu_array[2] ) &&
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(($parent == $pagenow ) || ($parent == $plugin_page ) || ($plugin_page == $hook ) || (($pagenow == 'admin.php' ) && ($parent1 != $submenu_array[2] ) ) )
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) {
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$title = $submenu_array[3];
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return $submenu_array[3];
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}
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if ( $submenu_array[2] != $pagenow || isset( $_GET['page'] ) ) // not the current page
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continue;
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if ( isset( $submenu_array[3] ) ) {
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$title = $submenu_array[3];
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return $submenu_array[3];
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} else {
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$title = $submenu_array[0];
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return $title;
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}
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}
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}
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}
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return $title;
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}
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function get_plugin_page_hook( $plugin_page, $parent_page ) {
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$hook = get_plugin_page_hookname( $plugin_page, $parent_page );
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if ( has_action($hook) )
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return $hook;
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else
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return null;
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}
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function get_plugin_page_hookname( $plugin_page, $parent_page ) {
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global $admin_page_hooks;
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$parent = get_admin_page_parent();
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if ( empty ( $parent_page ) || 'admin.php' == $parent_page ) {
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if ( isset( $admin_page_hooks[$plugin_page] ))
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$page_type = 'toplevel';
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else
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if ( isset( $admin_page_hooks[$parent] ))
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$page_type = $admin_page_hooks[$parent];
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} else
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if ( isset( $admin_page_hooks[$parent_page] ) ) {
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$page_type = $admin_page_hooks[$parent_page];
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} else {
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$page_type = 'admin';
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}
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$plugin_name = preg_replace( '!\.php!', '', $plugin_page );
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return $page_type.'_page_'.$plugin_name;
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}
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function user_can_access_admin_page() {
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global $pagenow;
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global $menu;
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global $submenu;
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global $_wp_menu_nopriv;
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global $_wp_submenu_nopriv;
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global $plugin_page;
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$parent = get_admin_page_parent();
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if ( isset( $_wp_submenu_nopriv[$parent][$pagenow] ) )
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return false;
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if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$parent][$plugin_page] ) )
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return false;
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if ( empty( $parent) ) {
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if ( isset( $_wp_menu_nopriv[$pagenow] ) )
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return false;
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if ( isset( $_wp_submenu_nopriv[$pagenow][$pagenow] ) )
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return false;
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if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$pagenow][$plugin_page] ) )
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return false;
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foreach (array_keys( $_wp_submenu_nopriv ) as $key ) {
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if ( isset( $_wp_submenu_nopriv[$key][$pagenow] ) )
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return false;
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if ( isset( $plugin_page ) && isset( $_wp_submenu_nopriv[$key][$plugin_page] ) )
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return false;
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}
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return true;
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}
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if ( isset( $submenu[$parent] ) ) {
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foreach ( $submenu[$parent] as $submenu_array ) {
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if ( isset( $plugin_page ) && ( $submenu_array[2] == $plugin_page ) ) {
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if ( current_user_can( $submenu_array[1] ))
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return true;
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else
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return false;
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} else if ( $submenu_array[2] == $pagenow ) {
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if ( current_user_can( $submenu_array[1] ))
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return true;
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else
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return false;
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}
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}
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}
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foreach ( $menu as $menu_array ) {
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if ( $menu_array[2] == $parent) {
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if ( current_user_can( $menu_array[1] ))
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return true;
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else
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return false;
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}
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}
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return true;
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}
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?>
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