<?php
/**
* Server-side file upload handler from wp-plupload or other asynchronous upload methods.
*
* @package WordPress
* @subpackage Administration
*/

if ( isset( $_REQUEST['action'] ) && 'upload-attachment' === $_REQUEST['action'] ) {
define( 'DOING_AJAX', true );
}

if ( ! defined( 'WP_ADMIN' ) ) {
define( 'WP_ADMIN', true );
}

if ( defined( 'ABSPATH' ) ) {
require_once ABSPATH . 'wp-load.php';
} else {
require_once dirname( __DIR__ ) . '/wp-load.php';
}

require_once ABSPATH . 'wp-admin/admin.php';

header( 'Content-Type: text/plain; charset=' . get_option( 'blog_charset' ) );

if ( isset( $_REQUEST['action'] ) && 'upload-attachment' === $_REQUEST['action'] ) {
require ABSPATH . 'wp-admin/includes/ajax-actions.php';

send_nosniff_header();
nocache_headers();

wp_ajax_upload_attachment();
die( '0' );
}

if ( ! current_user_can( 'upload_files' ) ) {
wp_die( __( 'Sorry, you are not allowed to upload files.' ) );
}

// Just fetch the detail form for that attachment.
if ( isset( $_REQUEST['attachment_id'] ) && (int) $_REQUEST['attachment_id'] && $_REQUEST['fetch'] ) {
$id = (int) $_REQUEST['attachment_id'];
$post = get_post( $id );
if ( 'attachment' !== $post->post_type ) {
wp_die( __( 'Invalid post type.' ) );
}

switch ( $_REQUEST['fetch'] ) {
case 3:
?>
<div class="media-item-wrapper">
<div class="attachment-details">
<?php
$thumb_url = wp_get_attachment_image_src( $id, 'thumbnail', true );
if ( $thumb_url ) {
echo '<img class="pinkynail" src="' . esc_url( $thumb_url[0] ) . '" alt="" />';
}

// Title shouldn't ever be empty, but use filename just in case.
$file = get_attached_file( $post->ID );
$file_url = wp_get_attachment_url( $post->ID );
$title = $post->post_title ? $post->post_title : wp_basename( $file );
?>
<div class="filename new">
<span class="media-list-title"><strong><?php echo esc_html( wp_html_excerpt( $title, 60, '&hellip;' ) ); ?></strong></span>
<span class="media-list-subtitle"><?php echo esc_html( wp_basename( $file ) ); ?></span>
<div class="attachment-tools">
<?php
if ( current_user_can( 'edit_post', $id ) ) {
echo '<a class="edit-attachment" href="' . esc_url( get_edit_post_link( $id ) ) . '">' . _x( 'Edit', 'media item' ) . '</a>';
} else {
echo '<span class="edit-attachment">' . _x( 'Success', 'media item' ) . '</span>';
}
?>
<span class="media-item-copy-container copy-to-clipboard-container edit-attachment">
<button type="button" class="button button-small copy-attachment-url" data-clipboard-text="<?php echo $file_url; ?>"><?php _e( 'Copy URL to clipboard' ); ?></button>
<span class="success hidden" aria-hidden="true"><?php _e( 'Copied!' ); ?></span>
</span>
</div>
</div>
</div>
</div>
<?php
break;
case 2:
add_filter( 'attachment_fields_to_edit', 'media_single_attachment_fields_to_edit', 10, 2 );
echo get_media_item(
$id,
array(
'send' => false,
'delete' => true,
)
);
break;
default:
add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 );
echo get_media_item( $id );
break;
}
exit;
}

check_admin_referer( 'media-form' );

$post_id = 0;
if ( isset( $_REQUEST['post_id'] ) ) {
$post_id = absint( $_REQUEST['post_id'] );
if ( ! get_post( $post_id ) || ! current_user_can( 'edit_post', $post_id ) ) {
$post_id = 0;
}
}

$id = media_handle_upload( 'async-upload', $post_id );
if ( is_wp_error( $id ) ) {
$message = sprintf(
'%s <strong>%s</strong><br />%s',
sprintf(
'<button type="button" class="dismiss button-link" onclick="jQuery(this).parents(\'div.media-item\').slideUp(200, function(){jQuery(this).remove();});">%s</button>',
__( 'Dismiss' )
),
sprintf(
/* translators: %s: Name of the file that failed to upload. */
__( '&#8220;%s&#8221; has failed to upload.' ),
esc_html( $_FILES['async-upload']['name'] )
),
esc_html( $id->get_error_message() )
);
wp_admin_notice(
$message,
array(
'additional_classes' => array( 'error-div', 'error' ),
'paragraph_wrap' => false,
)
);
exit;
}

if ( $_REQUEST['short'] ) {
// Short form response - attachment ID only.
echo $id;
} else {
// Long form response - big chunk of HTML.
$type = $_REQUEST['type'];

/**
* Filters the returned ID of an uploaded attachment.
*
* The dynamic portion of the hook name, `$type`, refers to the attachment type.
*
* Possible hook names include:
*
* - `async_upload_audio`
* - `async_upload_file`
* - `async_upload_image`
* - `async_upload_video`
*
* @since 2.5.0
*
* @param int $id Uploaded attachment ID.
*/
echo apply_filters( "async_upload_{$type}", $id );
}