\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5×\D6?\BDê\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2€ \00 $\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /usr/local/sitepad/editor/site-admin/includes/

Viewing File: class-file-upload-upgrader.php

<?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 site-admin/includes/class-wp-upgrader.php.
 */
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'] );
			}

			$this->filename = $_FILES[ $form ]['name'];
			$this->package  = $file['file'];

			// Construct the object array
			$object = 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( $object, $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.
			if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) ) {
				wp_die( $uploads['error'] );
			}

			$this->filename = sanitize_file_name( $_GET[ $urlholder ] );
			$this->package  = $uploads['basedir'] . '/' . $this->filename;

			if ( 0 !== strpos( realpath( $this->package ), realpath( $uploads['basedir'] ) ) ) {
				wp_die( __( 'Please select a file' ) );
			}
		}
	}

	/**
	 * Delete 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;
	}
}