1<?php
  2/**
  3 * Manage media uploaded file.
  4 *
  5 * There are many filters in here for media. Plugins can extend functionality
  6 * by hooking into the filters.
  7 *
  8 * @package WordPress
  9 * @subpackage Administration
 10 */
 11
 12/** Load WordPress Administration Bootstrap */
 13require_once __DIR__ . '/admin.php';
 14
 15if ( ! current_user_can( 'upload_files' ) ) {
 16	wp_die( __( 'Sorry, you are not allowed to upload files.' ) );
 17}
 18
 19wp_enqueue_script( 'plupload-handlers' );
 20
 21$post_id = 0;
 22if ( isset( $_REQUEST['post_id'] ) ) {
 23	$post_id = absint( $_REQUEST['post_id'] );
 24	if ( ! get_post( $post_id ) || ! current_user_can( 'edit_post', $post_id ) ) {
 25		$post_id = 0;
 26	}
 27}
 28
 29if ( $_POST ) {
 30	if ( isset( $_POST['html-upload'] ) && ! empty( $_FILES ) ) {
 31		check_admin_referer( 'media-form' );
 32		// Upload File button was clicked.
 33		$upload_id = media_handle_upload( 'async-upload', $post_id );
 34		if ( is_wp_error( $upload_id ) ) {
 35			wp_die( $upload_id );
 36		}
 37	}
 38	wp_redirect( admin_url( 'upload.php' ) );
 39	exit;
 40}
 41
 42// Used in the HTML title tag.
 43$title       = __( 'Upload New Media' );
 44$parent_file = 'upload.php';
 45
 46get_current_screen()->add_help_tab(
 47	array(
 48		'id'      => 'overview',
 49		'title'   => __( 'Overview' ),
 50		'content' =>
 51				'<p>' . __( 'You can upload media files here without creating a post first. This allows you to upload files to use with posts and pages later and/or to get a web link for a particular file that you can share. There are three options for uploading files:' ) . '</p>' .
 52				'<ul>' .
 53					'<li>' . __( '<strong>Drag and drop</strong> your files into the area below. Multiple files are allowed.' ) . '</li>' .
 54					'<li>' . __( 'Clicking <strong>Select Files</strong> opens a navigation window showing you files in your operating system. Selecting <strong>Open</strong> after clicking on the file you want activates a progress bar on the uploader screen.' ) . '</li>' .
 55					'<li>' . __( 'Revert to the <strong>Browser Uploader</strong> by clicking the link below the drag and drop box.' ) . '</li>' .
 56				'</ul>',
 57	)
 58);
 59get_current_screen()->set_help_sidebar(
 60	'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
 61	'<p>' . __( '<a href="https://wordpress.org/documentation/article/media-add-new-screen/">Documentation on Uploading Media Files</a>' ) . '</p>' .
 62	'<p>' . __( '<a href="https://wordpress.org/support/forums/">Support forums</a>' ) . '</p>'
 63);
 64
 65require_once ABSPATH . 'wp-admin/admin-header.php';
 66
 67$form_class = 'wp-upload-form media-upload-form type-form validate';
 68
 69if ( get_user_setting( 'uploader' ) || isset( $_GET['browser-uploader'] ) ) {
 70	$form_class .= ' html-uploader';
 71}
 72?>
 73<div class="wrap">
 74	<h1><?php echo esc_html( $title ); ?></h1>
 75
 76	<form enctype="multipart/form-data" method="post" action="<?php echo esc_url( admin_url( 'media-new.php' ) ); ?>" class="<?php echo esc_attr( $form_class ); ?>" id="file-form">
 77
 78	<?php media_upload_form(); ?>
 79
 80	<script type="text/javascript">
 81	var post_id = <?php echo absint( $post_id ); ?>, shortform = 3;
 82	</script>
 83	<input type="hidden" name="post_id" id="post_id" value="<?php echo absint( $post_id ); ?>" />
 84	<?php wp_nonce_field( 'media-form' ); ?>
 85	<div id="media-items" class="hide-if-no-js"></div>
 86	</form>
 87</div>
 88
 89<?php
 90require_once ABSPATH . 'wp-admin/admin-footer.php';
 91