WordPressを読む 93-2 /blog/wp-admin/includes/plugin.php 2
/blog/wp-admin/includes/plugin.php 2
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If the plugin fails, then the redirection will not * be overwritten with the success message. Also, the options will not be * updated and the activation hook will not be called on plugin error. * * It should be noted that in no way the below code will actually prevent errors * within the file. The code should not be used elsewhere to replicate the * "sandbox", which uses redirection to work. * {@source 13 1} * * If any errors are found or text is outputted, then it will be captured to * ensure that the success redirection will update the error redirection. * * @since 2.5.0 * * @param string $plugin Plugin path to main plugin file with plugin data. * @param string $redirect Optional. URL to redirect to. * @param bool $network_wide Whether to enable the plugin for all sites in the * network or just the current site. Multisite only. Default is false. * @param bool $silent Prevent calling activation hooks. Optional, default is false. * @return WP_Error|null WP_Error on invalid file or null on success. */ function activate_plugin( $plugin, $redirect = '', $network_wide = false, $silent = false ) { $plugin = plugin_basename( trim( $plugin ) ); if ( is_multisite() && ( $network_wide || is_network_only_plugin($plugin) ) ) { $network_wide = true; $current = get_site_option( 'active_sitewide_plugins', array() ); $_GET['networkwide'] = 1; // Back compat for plugins looking for this value. } else { $current = get_option( 'active_plugins', array() ); } $valid = validate_plugin($plugin); if ( is_wp_error($valid) ) return $valid; if ( !in_array($plugin, $current) ) { if ( !empty($redirect) ) 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 ob_start(); wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin ); $_wp_plugin_file = $plugin; include_once( WP_PLUGIN_DIR . '/' . $plugin ); $plugin = $_wp_plugin_file; // Avoid stomping of the $plugin variable in a plugin. if ( ! $silent ) { /** * Fires before a plugin is activated. * * If a plugin is silently activated (such as during an update), * this hook does not fire. * * @since 2.9.0 * * @param string $plugin Plugin path to main plugin file with plugin data. * @param bool $network_wide Whether to enable the plugin for all sites in the network * or just the current site. Multisite only. Default is false. */ do_action( 'activate_plugin', $plugin, $network_wide ); /** * Fires as a specific plugin is being deactivated. * * This hook is the "deactivation" hook used internally by * register_deactivation_hook(). The dynamic portion of the * hook name, $plugin. refers to the plugin basename. * * If a plugin is silently activated (such as during an update), * this hook does not fire. * * @since 2.0.0 * * @param bool $network_wide Whether to enable the plugin for all sites in the network * or just the current site. Multisite only. Default is false. */ do_action( 'activate_' . $plugin, $network_wide ); } if ( $network_wide ) { $current[$plugin] = time(); update_site_option( 'active_sitewide_plugins', $current ); } else { $current[] = $plugin; sort($current); update_option('active_plugins', $current); } if ( ! $silent ) { /** * Fires after a plugin has been activated. * * If a plugin is silently activated (such as during an update), * this hook does not fire. * * @since 2.9.0 * * @param string $plugin Plugin path to main plugin file with plugin data. * @param bool $network_wide Whether to enable the plugin for all sites in the network * or just the current site. Multisite only. Default is false. */ do_action( 'activated_plugin', $plugin, $network_wide ); } if ( ob_get_length() > 0 ) { $output = ob_get_clean(); return new WP_Error('unexpected_output', __('The plugin generated unexpected output.'), $output); } ob_end_clean(); } return null; } /** * Deactivate a single plugin or multiple plugins. * * The deactivation hook is disabled by the plugin upgrader by using the $silent * parameter. * * @since 2.5.0 * * @param string|array $plugins Single plugin or list of plugins to deactivate. * @param bool $silent Prevent calling deactivation hooks. Default is false. * @param mixed $network_wide Whether to deactivate the plugin for all sites in the network. * A value of null (the default) will deactivate plugins for both the site and the network. */ function deactivate_plugins( $plugins, $silent = false, $network_wide = null ) { if ( is_multisite() ) $network_current = get_site_option( 'active_sitewide_plugins', array() ); $current = get_option( 'active_plugins', array() ); $do_blog = $do_network = false; foreach ( (array) $plugins as $plugin ) { $plugin = plugin_basename( trim( $plugin ) ); if ( ! is_plugin_active($plugin) ) continue; $network_deactivating = false !== $network_wide && is_plugin_active_for_network( $plugin ); if ( ! $silent ) { /** * Fires before a plugin is deactivated. * * If a plugin is silently deactivated (such as during an update), * this hook does not fire. * * @since 2.9.0 * * @param string $plugin Plugin path to main plugin file with plugin data. * @param bool $network_deactivating Whether the plugin is deactivated for all sites in the network * or just the current site. Multisite only. Default is false. */ do_action( 'deactivate_plugin', $plugin, $network_deactivating ); } if ( false !== $network_wide ) { if ( is_plugin_active_for_network( $plugin ) ) { $do_network = true; unset( $network_current[ $plugin ] ); } elseif ( $network_wide ) { continue; } } if ( true !== $network_wide ) { $key = array_search( $plugin, $current ); if ( false !== $key ) { $do_blog = true; unset( $current[ $key ] ); } } if ( ! $silent ) { /** * Fires as a specific plugin is being deactivated. * * This hook is the "deactivation" hook used internally by * register_deactivation_hook(). The dynamic portion of the * hook name, $plugin. refers to the plugin basename. * * If a plugin is silently deactivated (such as during an update), * this hook does not fire. * * @since 2.0.0 * * @param bool $network_deactivating Whether the plugin is deactivated for all sites in the network * or just the current site. Multisite only. Default is false. */ do_action( 'deactivate_' . $plugin, $network_deactivating ); /** * Fires after a plugin is deactivated. * * If a plugin is silently deactivated (such as during an update), * this hook does not fire. * * @since 2.9.0 * * @param string $plugin Plugin basename. * @param bool $network_deactivating Whether the plugin is deactivated for all sites in the network * or just the current site. Multisite only. Default false. */ do_action( 'deactivated_plugin', $plugin, $network_deactivating ); } } if ( $do_blog ) update_option('active_plugins', $current); if ( $do_network ) update_site_option( 'active_sitewide_plugins', $network_current ); } /** * Activate multiple plugins. * * When WP_Error is returned, it does not mean that one of the plugins had * errors. It means that one or more of the plugins file path was invalid. * * The execution will be halted as soon as one of the plugins has an error. * * @since 2.6.0 * * @param string|array $plugins Single plugin or list of plugins to activate. * @param string $redirect Redirect to page after successful activation. * @param bool $network_wide Whether to enable the plugin for all sites in the network. * @param bool $silent Prevent calling activation hooks. Default is false. * @return bool|WP_Error True when finished or WP_Error if there were errors during a plugin activation. */ function activate_plugins( $plugins, $redirect = '', $network_wide = false, $silent = false ) { if ( !is_array($plugins) ) $plugins = array($plugins); $errors = array(); foreach ( $plugins as $plugin ) { if ( !empty($redirect) ) $redirect = add_query_arg('plugin', $plugin, $redirect); $result = activate_plugin($plugin, $redirect, $network_wide, $silent); if ( is_wp_error($result) ) $errors[$plugin] = $result; } if ( !empty($errors) ) return new WP_Error('plugins_invalid', __('One of the plugins is invalid.'), $errors); return true; } /** * Remove directory and files of a plugin for a list of plugins. * * @since 2.6.0 * * @param array $plugins List of plugins to delete. * @param string $deprecated Deprecated. * @return bool|null|WP_Error True on success, false is $plugins is empty, WP_Error on failure. * Null if filesystem credentials are required to proceed. */ function delete_plugins( $plugins, $deprecated = '' ) { global $wp_filesystem; if ( empty($plugins) ) return false; $checked = array(); foreach( $plugins as $plugin ) $checked[] = 'checked[]=' . $plugin; ob_start(); $url = wp_nonce_url('plugins.php?action=delete-selected&verify-delete=1&' . implode('&', $checked), 'bulk-plugins'); if ( false === ($credentials = request_filesystem_credentials($url)) ) { $data = ob_get_contents(); ob_end_clean(); if ( ! empty($data) ){ include_once( ABSPATH . 'wp-admin/admin-header.php'); echo $data; include( ABSPATH . 'wp-admin/admin-footer.php'); exit; } return; } if ( ! WP_Filesystem($credentials) ) { request_filesystem_credentials($url, '', true); //Failed to connect, Error and request again $data = ob_get_contents(); ob_end_clean(); if ( ! empty($data) ){ include_once( ABSPATH . 'wp-admin/admin-header.php'); echo $data; include( ABSPATH . 'wp-admin/admin-footer.php'); exit; } return; } if ( ! is_object($wp_filesystem) ) return new WP_Error('fs_unavailable', __('Could not access filesystem.')); if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() ) return new WP_Error('fs_error', __('Filesystem error.'), $wp_filesystem->errors); //Get the base plugin folder $plugins_dir = $wp_filesystem->wp_plugins_dir(); if ( empty($plugins_dir) ) return new WP_Error('fs_no_plugins_dir', __('Unable to locate WordPress Plugin directory.')); $plugins_dir = trailingslashit( $plugins_dir ); $errors = array(); foreach( $plugins as $plugin_file ) { // Run Uninstall hook if ( is_uninstallable_plugin( $plugin_file ) ) uninstall_plugin($plugin_file); $this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin_file) ); // If plugin is in its own directory, recursively delete the directory. if ( strpos($plugin_file, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that it's not the root plugin folder $deleted = $wp_filesystem->delete($this_plugin_dir, true); else $deleted = $wp_filesystem->delete($plugins_dir . $plugin_file); if ( ! $deleted ) $errors[] = $plugin_file; } // Remove deleted plugins from the plugin updates list. if ( $current = get_site_transient('update_plugins') ) { // Don't remove the plugins that weren't deleted. $deleted = array_diff( $plugins, $errors ); foreach ( $deleted as $plugin_file ) { unset( $current->response[ $plugin_file ] ); } set_site_transient( 'update_plugins', $current ); } if ( ! empty($errors) ) return new WP_Error('could_not_remove_plugin', sprintf(__('Could not fully remove the plugin(s) %s.'), implode(', ', $errors)) ); return true; } /** * Validate active plugins * * Validate all active plugins, deactivates invalid and * returns an array of deactivated ones. * * @since 2.5.0 * @return array invalid plugins, plugin as key, error as value */ function validate_active_plugins() { $plugins = get_option( 'active_plugins', array() ); // Validate vartype: array. if ( ! is_array( $plugins ) ) { update_option( 'active_plugins', array() ); $plugins = array(); } if ( is_multisite() && current_user_can( 'manage_network_plugins' ) ) { $network_plugins = (array) get_site_option( 'active_sitewide_plugins', array() ); $plugins = array_merge( $plugins, array_keys( $network_plugins ) ); } if ( empty( $plugins ) ) return; $invalid = array(); // Invalid plugins get deactivated. foreach ( $plugins as $plugin ) { $result = validate_plugin( $plugin ); if ( is_wp_error( $result ) ) { $invalid[$plugin] = $result; deactivate_plugins( $plugin, true ); } } return $invalid; } /** * Validate the plugin path. * * Checks that the file exists and {@link validate_file() is valid file}. * * @since 2.5.0 * * @param string $plugin Plugin Path * @return WP_Error|int 0 on success, WP_Error on failure. */ function validate_plugin($plugin) { if ( validate_file($plugin) ) return new WP_Error('plugin_invalid', __('Invalid plugin path.')); if ( ! file_exists(WP_PLUGIN_DIR . '/' . $plugin) ) return new WP_Error('plugin_not_found', __('Plugin file does not exist.')); $installed_plugins = get_plugins(); if ( ! isset($installed_plugins[$plugin]) ) return new WP_Error('no_plugin_header', __('The plugin does not have a valid header.')); return 0; } /** * Whether the plugin can be uninstalled. * * @since 2.7.0 * * @param string $plugin Plugin path to check. * @return bool Whether plugin can be uninstalled. */ function is_uninstallable_plugin($plugin) { $file = plugin_basename($plugin); $uninstallable_plugins = (array) get_option('uninstall_plugins'); if ( isset( $uninstallable_plugins[$file] ) || file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) ) return true; return false; } /** * Uninstall a single plugin. * * Calls the uninstall hook, if it is available. * * @since 2.7.0 * * @param string $plugin Relative plugin path from Plugin Directory. */ function uninstall_plugin($plugin) { $file = plugin_basename($plugin); $uninstallable_plugins = (array) get_option('uninstall_plugins'); if ( file_exists( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ) ) { if ( isset( $uninstallable_plugins[$file] ) ) { unset($uninstallable_plugins[$file]); update_option('uninstall_plugins', $uninstallable_plugins); } unset($uninstallable_plugins); define('WP_UNINSTALL_PLUGIN', $file); wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . dirname( $file ) ); include( WP_PLUGIN_DIR . '/' . dirname($file) . '/uninstall.php' ); return true; } if ( isset( $uninstallable_plugins[$file] ) ) { $callable = $uninstallable_plugins[$file]; unset($uninstallable_plugins[$file]); update_option('uninstall_plugins', $uninstallable_plugins); unset($uninstallable_plugins); wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $file ); include( WP_PLUGIN_DIR . '/' . $file ); add_action( 'uninstall_' . $file, $callable ); /** * Fires in uninstall_plugin() once the plugin has been uninstalled. * * The action concatenates the 'uninstall_' prefix with the basename of the * plugin passed to {@see uninstall_plugin()} to create a dynamically-named action. * * @since 2.7.0 */ do_action( 'uninstall_' . $file ); } } |