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Editing: update.php
<?php /** * Update/Install Plugin/Theme administration panel. * * @package WordPress * @subpackage Administration */ if ( ! defined( 'IFRAME_REQUEST' ) && isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'update-selected', 'activate-plugin', 'update-selected-themes' ), true ) ) { define( 'IFRAME_REQUEST', true ); } /** WordPress Administration Bootstrap */ require_once __DIR__ . '/admin.php'; require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; wp_enqueue_script( 'wp-a11y' ); if ( isset( $_GET['action'] ) ) { $plugin = isset( $_REQUEST['plugin'] ) ? trim( $_REQUEST['plugin'] ) : ''; $theme = isset( $_REQUEST['theme'] ) ? urldecode( $_REQUEST['theme'] ) : ''; $action = $_REQUEST['action'] ?? ''; if ( 'update-selected' === $action ) { if ( ! current_user_can( 'update_plugins' ) ) { wp_die( __( 'Sorry, you are not allowed to update plugins for this site.' ) ); } check_admin_referer( 'bulk-update-plugins' ); if ( isset( $_GET['plugins'] ) ) { $plugins = explode( ',', stripslashes( $_GET['plugins'] ) ); } elseif ( isset( $_POST['checked'] ) ) { $plugins = (array) $_POST['checked']; } else { $plugins = array(); } $plugins = array_map( 'urldecode', $plugins ); $url = 'update.php?action=update-selected&plugins=' . urlencode( implode( ',', $plugins ) ); $nonce = 'bulk-update-plugins'; wp_enqueue_script( 'updates' ); iframe_header(); $upgrader = new Plugin_Upgrader( new Bulk_Plugin_Upgrader_Skin( compact( 'nonce', 'url' ) ) ); $upgrader->bulk_upgrade( $plugins ); iframe_footer(); } elseif ( 'upgrade-plugin' === $action ) { if ( ! current_user_can( 'update_plugins' ) ) { wp_die( __( 'Sorry, you are not allowed to update plugins for this site.' ) ); } check_admin_referer( 'upgrade-plugin_' . $plugin ); // Used in the HTML title tag. $title = __( 'Update Plugin' ); $parent_file = 'plugins.php'; $submenu_file = 'plugins.php'; wp_enqueue_script( 'updates' ); require_once ABSPATH . 'wp-admin/admin-header.php'; $nonce = 'upgrade-plugin_' . $plugin; $url = 'update.php?action=upgrade-plugin&plugin=' . urlencode( $plugin ); $upgrader = new Plugin_Upgrader( new Plugin_Upgrader_Skin( compact( 'title', 'nonce', 'url', 'plugin' ) ) ); $upgrader->upgrade( $plugin ); require_once ABSPATH . 'wp-admin/admin-footer.php'; } elseif ( 'activate-plugin' === $action ) { if ( ! current_user_can( 'update_plugins' ) ) { wp_die( __( 'Sorry, you are not allowed to update plugins for this site.' ) ); } check_admin_referer( 'activate-plugin_' . $plugin ); if ( ! isset( $_GET['failure'] ) && ! isset( $_GET['success'] ) ) { wp_redirect( admin_url( 'update.php?action=activate-plugin&failure=true&plugin=' . urlencode( $plugin ) . '&_wpnonce=' . $_GET['_wpnonce'] ) ); activate_plugin( $plugin, '', ! empty( $_GET['networkwide'] ), true ); wp_redirect( admin_url( 'update.php?action=activate-plugin&success=true&plugin=' . urlencode( $plugin ) . '&_wpnonce=' . $_GET['_wpnonce'] ) ); die(); } iframe_header( __( 'Plugin Reactivation' ), true ); if ( isset( $_GET['success'] ) ) { echo '<p>' . __( 'Plugin reactivated successfully.' ) . '</p>'; } if ( isset( $_GET['failure'] ) ) { echo '<p>' . __( 'Plugin failed to reactivate due to a fatal error.' ) . '</p>'; error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR ); ini_set( 'display_errors', true ); // Ensure that fatal errors are displayed. wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin ); include WP_PLUGIN_DIR . '/' . $plugin; } iframe_footer(); } elseif ( 'install-plugin' === $action ) { if ( ! current_user_can( 'install_plugins' ) ) { wp_die( __( 'Sorry, you are not allowed to install plugins on this site.' ) ); } require_once ABSPATH . 'wp-admin/includes/plugin-install.php'; // For plugins_api(). check_admin_referer( 'install-plugin_' . $plugin ); $api = plugins_api( 'plugin_information', array( 'slug' => $plugin, 'fields' => array( 'sections' => false, ), ) ); if ( is_wp_error( $api ) ) { wp_die( $api ); } // Used in the HTML title tag. $title = __( 'Plugin Installation' ); $parent_file = 'plugins.php'; $submenu_file = 'plugin-install.php'; require_once ABSPATH . 'wp-admin/admin-header.php'; /* translators: %s: Plugin name and version. */ $title = sprintf( __( 'Installing Plugin: %s' ), $api->name . ' ' . $api->version ); $nonce = 'install-plugin_' . $plugin; $url = 'update.php?action=install-plugin&plugin=' . urlencode( $plugin ); if ( isset( $_GET['from'] ) ) { $url .= '&from=' . urlencode( stripslashes( $_GET['from'] ) ); } $type = 'web'; // Install plugin type, From Web or an Upload. $upgrader = new Plugin_Upgrader( new Plugin_Installer_Skin( compact( 'title', 'url', 'nonce', 'plugin', 'api' ) ) ); $upgrader->install( $api->download_link ); require_once ABSPATH . 'wp-admin/admin-footer.php'; } elseif ( 'upload-plugin' === $action ) { if ( ! current_user_can( 'upload_plugins' ) ) { wp_die( __( 'Sorry, you are not allowed to install plugins on this site.' ) ); } check_admin_referer( 'plugin-upload' ); if ( isset( $_FILES['pluginzip']['name'] ) && ! str_ends_with( strtolower( $_FILES['pluginzip']['name'] ), '.zip' ) ) { wp_die( __( 'Only .zip archives may be uploaded.' ) ); } $file_upload = new File_Upload_Upgrader( 'pluginzip', 'package' ); // Used in the HTML title tag. $title = __( 'Upload Plugin' ); $parent_file = 'plugins.php'; $submenu_file = 'plugin-install.php'; require_once ABSPATH . 'wp-admin/admin-header.php'; /* translators: %s: File name. */ $title = sprintf( __( 'Installing plugin from uploaded file: %s' ), esc_html( basename( $file_upload->filename ) ) ); $nonce = 'plugin-upload'; $url = add_query_arg( array( 'package' => $file_upload->id ), 'update.php?action=upload-plugin' ); $type = 'upload'; // Install plugin type, From Web or an Upload. $overwrite = isset( $_GET['overwrite'] ) ? sanitize_text_field( $_GET['overwrite'] ) : ''; $overwrite = in_array( $overwrite, array( 'update-plugin', 'downgrade-plugin' ), true ) ? $overwrite : ''; $upgrader = new Plugin_Upgrader( new Plugin_Installer_Skin( compact( 'type', 'title', 'nonce', 'url', 'overwrite' ) ) ); $result = $upgrader->install( $file_upload->package, array( 'overwrite_package' => $overwrite ) ); if ( $result || is_wp_error( $result ) ) { $file_upload->cleanup(); } require_once ABSPATH . 'wp-admin/admin-footer.php'; } elseif ( 'upload-plugin-cancel-overwrite' === $action ) { if ( ! current_user_can( 'upload_plugins' ) ) { wp_die( __( 'Sorry, you are not allowed to install plugins on this site.' ) ); } check_admin_referer( 'plugin-upload-cancel-overwrite' ); // Make sure the attachment still exists, or File_Upload_Upgrader will call wp_die() // that shows a generic "Please select a file" error. if ( ! empty( $_GET['package'] ) ) { $attachment_id = (int) $_GET['package']; if ( get_post( $attachment_id ) ) { $file_upload = new File_Upload_Upgrader( 'pluginzip', 'package' ); $file_upload->cleanup(); } } wp_redirect( self_admin_url( 'plugin-install.php' ) ); exit; } elseif ( 'upgrade-theme' === $action ) { if ( ! current_user_can( 'update_themes' ) ) { wp_die( __( 'Sorry, you are not allowed to update themes for this site.' ) ); } check_admin_referer( 'upgrade-theme_' . $theme ); wp_enqueue_script( 'updates' ); // Used in the HTML title tag. $title = __( 'Update Theme' ); $parent_file = 'themes.php'; $submenu_file = 'themes.php'; require_once ABSPATH . 'wp-admin/admin-header.php'; $nonce = 'upgrade-theme_' . $theme; $url = 'update.php?action=upgrade-theme&theme=' . urlencode( $theme ); $upgrader = new Theme_Upgrader( new Theme_Upgrader_Skin( compact( 'title', 'nonce', 'url', 'theme' ) ) ); $upgrader->upgrade( $theme ); require_once ABSPATH . 'wp-admin/admin-footer.php'; } elseif ( 'update-selected-themes' === $action ) { if ( ! current_user_can( 'update_themes' ) ) { wp_die( __( 'Sorry, you are not allowed to update themes for this site.' ) ); } check_admin_referer( 'bulk-update-themes' ); if ( isset( $_GET['themes'] ) ) { $themes = explode( ',', stripslashes( $_GET['themes'] ) ); } elseif ( isset( $_POST['checked'] ) ) { $themes = (array) $_POST['checked']; } else { $themes = array(); } $themes = array_map( 'urldecode', $themes ); $url = 'update.php?action=update-selected-themes&themes=' . urlencode( implode( ',', $themes ) ); $nonce = 'bulk-update-themes'; wp_enqueue_script( 'updates' ); iframe_header(); $upgrader = new Theme_Upgrader( new Bulk_Theme_Upgrader_Skin( compact( 'nonce', 'url' ) ) ); $upgrader->bulk_upgrade( $themes ); iframe_footer(); } elseif ( 'install-theme' === $action ) { if ( ! current_user_can( 'install_themes' ) ) { wp_die( __( 'Sorry, you are not allowed to install themes on this site.' ) ); } require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; // For themes_api(). check_admin_referer( 'install-theme_' . $theme ); $api = themes_api( 'theme_information', array( 'slug' => $theme, 'fields' => array( 'sections' => false, 'tags' => false, ), ) ); // Save on a bit of bandwidth. if ( is_wp_error( $api ) ) { wp_die( $api ); } // Used in the HTML title tag. $title = __( 'Install Themes' ); $parent_file = 'themes.php'; $submenu_file = 'themes.php'; require_once ABSPATH . 'wp-admin/admin-header.php'; /* translators: %s: Theme name and version. */ $title = sprintf( __( 'Installing Theme: %s' ), $api->name . ' ' . $api->version ); $nonce = 'install-theme_' . $theme; $url = 'update.php?action=install-theme&theme=' . urlencode( $theme ); $type = 'web'; // Install theme type, From Web or an Upload. $upgrader = new Theme_Upgrader( new Theme_Installer_Skin( compact( 'title', 'url', 'nonce', 'plugin', 'api' ) ) ); $upgrader->install( $api->download_link ); require_once ABSPATH . 'wp-admin/admin-footer.php'; } elseif ( 'upload-theme' === $action ) { if ( ! current_user_can( 'upload_themes' ) ) { wp_die( __( 'Sorry, you are not allowed to install themes on this site.' ) ); } check_admin_referer( 'theme-upload' ); if ( isset( $_FILES['themezip']['name'] ) && ! str_ends_with( strtolower( $_FILES['themezip']['name'] ), '.zip' ) ) { wp_die( __( 'Only .zip archives may be uploaded.' ) ); } $file_upload = new File_Upload_Upgrader( 'themezip', 'package' ); // Used in the HTML title tag. $title = __( 'Upload Theme' ); $parent_file = 'themes.php'; $submenu_file = 'theme-install.php'; require_once ABSPATH . 'wp-admin/admin-header.php'; /* translators: %s: File name. */ $title = sprintf( __( 'Installing theme from uploaded file: %s' ), esc_html( basename( $file_upload->filename ) ) ); $nonce = 'theme-upload'; $url = add_query_arg( array( 'package' => $file_upload->id ), 'update.php?action=upload-theme' ); $type = 'upload'; // Install theme type, From Web or an Upload. $overwrite = isset( $_GET['overwrite'] ) ? sanitize_text_field( $_GET['overwrite'] ) : ''; $overwrite = in_array( $overwrite, array( 'update-theme', 'downgrade-theme' ), true ) ? $overwrite : ''; $upgrader = new Theme_Upgrader( new Theme_Installer_Skin( compact( 'type', 'title', 'nonce', 'url', 'overwrite' ) ) ); $result = $upgrader->install( $file_upload->package, array( 'overwrite_package' => $overwrite ) ); if ( $result || is_wp_error( $result ) ) { $file_upload->cleanup(); } require_once ABSPATH . 'wp-admin/admin-footer.php'; } elseif ( 'upload-theme-cancel-overwrite' === $action ) { if ( ! current_user_can( 'upload_themes' ) ) { wp_die( __( 'Sorry, you are not allowed to install themes on this site.' ) ); } check_admin_referer( 'theme-upload-cancel-overwrite' ); // Make sure the attachment still exists, or File_Upload_Upgrader will call wp_die() // that shows a generic "Please select a file" error. if ( ! empty( $_GET['package'] ) ) { $attachment_id = (int) $_GET['package']; if ( get_post( $attachment_id ) ) { $file_upload = new File_Upload_Upgrader( 'themezip', 'package' ); $file_upload->cleanup(); } } wp_redirect( self_admin_url( 'theme-install.php' ) ); exit; } else { /** * Fires when a custom plugin or theme update request is received. * * The dynamic portion of the hook name, `$action`, refers to the action * provided in the request for wp-admin/update.php. Can be used to * provide custom update functionality for themes and plugins. * * @since 2.8.0 */ do_action( "update-custom_{$action}" ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores } }
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