WordPress/wp-admin/async-upload.php
Dion Hulse 3cec3655e9 Prevent IE9 and lower displaying the download file dialogue when attempting to upload using the html4 Plupload handler.
The HTML4 Plupload handler uses a hidden iframe to POST the upload form,
Unfortunately Internet Explorer 9 doesn't support the `application/json` 
content-type which `wp_send_json_success()` and requires `text/html` instead.

This partially reverts [30354], keeping the better error messages.

Fixes #31037 for trunk.

Built from https://develop.svn.wordpress.org/trunk@31429


git-svn-id: http://core.svn.wordpress.org/trunk@31410 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2015-02-12 01:15:29 +00:00

116 lines
4.1 KiB
PHP

<?php
/**
* Server-side file upload handler from wp-plupload, swfupload 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( dirname( __FILE__ ) ) . '/wp-load.php' );
if ( ! ( isset( $_REQUEST['action'] ) && 'upload-attachment' == $_REQUEST['action'] ) ) {
// Flash often fails to send cookies with the POST or upload, so we need to pass it in GET or POST instead
if ( is_ssl() && empty($_COOKIE[SECURE_AUTH_COOKIE]) && !empty($_REQUEST['auth_cookie']) )
$_COOKIE[SECURE_AUTH_COOKIE] = $_REQUEST['auth_cookie'];
elseif ( empty($_COOKIE[AUTH_COOKIE]) && !empty($_REQUEST['auth_cookie']) )
$_COOKIE[AUTH_COOKIE] = $_REQUEST['auth_cookie'];
if ( empty($_COOKIE[LOGGED_IN_COOKIE]) && !empty($_REQUEST['logged_in_cookie']) )
$_COOKIE[LOGGED_IN_COOKIE] = $_REQUEST['logged_in_cookie'];
unset($current_user);
}
require_once( ABSPATH . 'wp-admin/admin.php' );
header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
if ( isset( $_REQUEST['action'] ) && 'upload-attachment' === $_REQUEST['action'] ) {
include( ABSPATH . 'wp-admin/includes/ajax-actions.php' );
send_nosniff_header();
nocache_headers();
wp_ajax_upload_attachment();
die( '0' );
}
if ( ! current_user_can( 'upload_files' ) ) {
wp_die( __( 'You do not have permission to upload files.' ) );
}
// just fetch the detail form for that attachment
if ( isset($_REQUEST['attachment_id']) && ($id = intval($_REQUEST['attachment_id'])) && $_REQUEST['fetch'] ) {
$post = get_post( $id );
if ( 'attachment' != $post->post_type )
wp_die( __( 'Unknown post type.' ) );
if ( ! current_user_can( 'edit_post', $id ) )
wp_die( __( 'You are not allowed to edit this item.' ) );
switch ( $_REQUEST['fetch'] ) {
case 3 :
if ( $thumb_url = wp_get_attachment_image_src( $id, 'thumbnail', true ) )
echo '<img class="pinkynail" src="' . esc_url( $thumb_url[0] ) . '" alt="" />';
echo '<a class="edit-attachment" href="' . esc_url( get_edit_post_link( $id ) ) . '" target="_blank">' . _x( 'Edit', 'media item' ) . '</a>';
$title = $post->post_title ? $post->post_title : wp_basename( $post->guid ); // title shouldn't ever be empty, but use filename just in cas.e
echo '<div class="filename new"><span class="title">' . esc_html( wp_html_excerpt( $title, 60, '&hellip;' ) ) . '</span></div>';
break;
case 2 :
add_filter('attachment_fields_to_edit', 'media_single_attachment_fields_to_edit', 10, 2);
echo get_media_item($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) ) {
echo '<div class="error-div error">
<a class="dismiss" href="#" onclick="jQuery(this).parents(\'div.media-item\').slideUp(200, function(){jQuery(this).remove();});">' . __('Dismiss') . '</a>
<strong>' . sprintf(__('&#8220;%s&#8221; has failed to upload due to an error'), esc_html($_FILES['async-upload']['name']) ) . '</strong><br />' .
esc_html($id->get_error_message()) . '</div>';
exit;
}
if ( $_REQUEST['short'] ) {
// Short form response - attachment ID only.
echo $id;
} else {
// Long form response - big chunk o html.
$type = $_REQUEST['type'];
/**
* Filter the returned ID of an uploaded attachment.
*
* The dynamic portion of the hook name, `$type`, refers to the attachment type,
* such as 'image', 'audio', 'video', 'file', etc.
*
* @since 2.5.0
*
* @param int $id Uploaded attachment ID.
*/
echo apply_filters( "async_upload_{$type}", $id );
}