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