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<?php /** * Upgrade API: File_Upload_Upgrader class * * @package WordPress * @subpackage Upgrader * @since 4.6.0 */ /** * Core class used for handling file uploads. * * This class handles the upload process and passes it as if it's a local file * to the Upgrade/Installer functions. * * @since 2.8.0 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php. */ #[AllowDynamicProperties] class File_Upload_Upgrader { /** * The full path to the file package. * * @since 2.8.0 * @var string $package */ public $package; /** * The name of the file. * * @since 2.8.0 * @var string $filename */ public $filename; /** * The ID of the attachment post for this file. * * @since 3.3.0 * @var int $id */ public $id = 0; /** * Construct the upgrader for a form. * * @since 2.8.0 * * @param string $form The name of the form the file was uploaded from. * @param string $urlholder The name of the `GET` parameter that holds the filename. */ public function __construct( $form, $urlholder ) { if ( empty( $_FILES[ $form ]['name'] ) && empty( $_GET[ $urlholder ] ) ) { wp_die( __( 'Please select a file' ) ); } // Handle a newly uploaded file. Else, assume it's already been uploaded. if ( ! empty( $_FILES ) ) { $overrides = array( 'test_form' => false, 'test_type' => false, ); $file = wp_handle_upload( $_FILES[ $form ], $overrides ); if ( isset( $file['error'] ) ) { wp_die( $file['error'] ); } if ( 'pluginzip' === $form || 'themezip' === $form ) { if ( ! wp_zip_file_is_valid( $file['file'] ) ) { wp_delete_file( $file['file'] ); if ( 'pluginzip' === $form ) { $plugins_page = sprintf( '<a href="%s">%s</a>', self_admin_url( 'plugin-install.php' ), __( 'Return to the Plugin Installer' ) ); wp_die( __( 'Incompatible Archive.' ) . '<br />' . $plugins_page ); } if ( 'themezip' === $form ) { $themes_page = sprintf( '<a href="%s" target="_parent">%s</a>', self_admin_url( 'theme-install.php' ), __( 'Return to the Theme Installer' ) ); wp_die( __( 'Incompatible Archive.' ) . '<br />' . $themes_page ); } } } $this->filename = $_FILES[ $form ]['name']; $this->package = $file['file']; // Construct the attachment array. $attachment = array( 'post_title' => $this->filename, 'post_content' => $file['url'], 'post_mime_type' => $file['type'], 'guid' => $file['url'], 'context' => 'upgrader', 'post_status' => 'private', ); // Save the data. $this->id = wp_insert_attachment( $attachment, $file['file'] ); // Schedule a cleanup for 2 hours from now in case of failed installation. wp_schedule_single_event( time() + 2 * HOUR_IN_SECONDS, 'upgrader_scheduled_cleanup', array( $this->id ) ); } elseif ( is_numeric( $_GET[ $urlholder ] ) ) { // Numeric Package = previously uploaded file, see above. $this->id = (int) $_GET[ $urlholder ]; $attachment = get_post( $this->id ); if ( empty( $attachment ) ) { wp_die( __( 'Please select a file' ) ); } $this->filename = $attachment->post_title; $this->package = get_attached_file( $attachment->ID ); } else { // Else, It's set to something, Back compat for plugins using the old (pre-3.3) File_Uploader handler. $uploads = wp_upload_dir(); if ( ! ( $uploads && false === $uploads['error'] ) ) { wp_die( $uploads['error'] ); } $this->filename = sanitize_file_name( $_GET[ $urlholder ] ); $this->package = $uploads['basedir'] . '/' . $this->filename; if ( ! str_starts_with( realpath( $this->package ), realpath( $uploads['basedir'] ) ) ) { wp_die( __( 'Please select a file' ) ); } } } /** * Deletes the attachment/uploaded file. * * @since 3.2.2 * * @return bool Whether the cleanup was successful. */ public function cleanup() { if ( $this->id ) { wp_delete_attachment( $this->id ); } elseif ( file_exists( $this->package ) ) { return @unlink( $this->package ); } return true; } }
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