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   1  <?php
   2  /**
   3   * Server-side file upload handler from wp-plupload or other asynchronous upload methods.
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  if ( isset( $_REQUEST['action'] ) && 'upload-attachment' === $_REQUEST['action'] ) {
  10      define( 'DOING_AJAX', true );
  11  }
  12  
  13  if ( ! defined( 'WP_ADMIN' ) ) {
  14      define( 'WP_ADMIN', true );
  15  }
  16  
  17  if ( defined( 'ABSPATH' ) ) {
  18      require_once ( ABSPATH . 'wp-load.php' );
  19  } else {
  20      require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' );
  21  }
  22  
  23  require_once ( ABSPATH . 'wp-admin/admin.php' );
  24  
  25  header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
  26  
  27  if ( isset( $_REQUEST['action'] ) && 'upload-attachment' === $_REQUEST['action'] ) {
  28      include ( ABSPATH . 'wp-admin/includes/ajax-actions.php' );
  29  
  30      send_nosniff_header();
  31      nocache_headers();
  32  
  33      wp_ajax_upload_attachment();
  34      die( '0' );
  35  }
  36  
  37  if ( ! current_user_can( 'upload_files' ) ) {
  38      wp_die( __( 'Sorry, you are not allowed to upload files.' ) );
  39  }
  40  
  41  // just fetch the detail form for that attachment
  42  if ( isset( $_REQUEST['attachment_id'] ) && ( $id = intval( $_REQUEST['attachment_id'] ) ) && $_REQUEST['fetch'] ) {
  43      $post = get_post( $id );
  44      if ( 'attachment' != $post->post_type ) {
  45          wp_die( __( 'Invalid post type.' ) );
  46      }
  47      if ( ! current_user_can( 'edit_post', $id ) ) {
  48          wp_die( __( 'Sorry, you are not allowed to edit this item.' ) );
  49      }
  50  
  51      switch ( $_REQUEST['fetch'] ) {
  52          case 3:
  53              if ( $thumb_url = wp_get_attachment_image_src( $id, 'thumbnail', true ) ) {
  54                  echo '<img class="pinkynail" src="' . esc_url( $thumb_url[0] ) . '" alt="" />';
  55              }
  56              echo '<a class="edit-attachment" href="' . esc_url( get_edit_post_link( $id ) ) . '" target="_blank">' . _x( 'Edit', 'media item' ) . '</a>';
  57  
  58              // Title shouldn't ever be empty, but use filename just in case.
  59              $file  = get_attached_file( $post->ID );
  60              $title = $post->post_title ? $post->post_title : wp_basename( $file );
  61              echo '<div class="filename new"><span class="title">' . esc_html( wp_html_excerpt( $title, 60, '&hellip;' ) ) . '</span></div>';
  62              break;
  63          case 2:
  64              add_filter( 'attachment_fields_to_edit', 'media_single_attachment_fields_to_edit', 10, 2 );
  65              echo get_media_item(
  66                  $id,
  67                  array(
  68                      'send'   => false,
  69                      'delete' => true,
  70                  )
  71              );
  72              break;
  73          default:
  74              add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 );
  75              echo get_media_item( $id );
  76              break;
  77      }
  78      exit;
  79  }
  80  
  81  check_admin_referer( 'media-form' );
  82  
  83  $post_id = 0;
  84  if ( isset( $_REQUEST['post_id'] ) ) {
  85      $post_id = absint( $_REQUEST['post_id'] );
  86      if ( ! get_post( $post_id ) || ! current_user_can( 'edit_post', $post_id ) ) {
  87          $post_id = 0;
  88      }
  89  }
  90  
  91  $id = media_handle_upload( 'async-upload', $post_id );
  92  if ( is_wp_error( $id ) ) {
  93      echo '<div class="error-div error">
  94      <button type="button" class="dismiss button-link" onclick="jQuery(this).parents(\'div.media-item\').slideUp(200, function(){jQuery(this).remove();});">' . __( 'Dismiss' ) . '</button>
  95      <strong>' . sprintf( __( '&#8220;%s&#8221; has failed to upload.' ), esc_html( $_FILES['async-upload']['name'] ) ) . '</strong><br />' .
  96      esc_html( $id->get_error_message() ) . '</div>';
  97      exit;
  98  }
  99  
 100  if ( $_REQUEST['short'] ) {
 101      // Short form response - attachment ID only.
 102      echo $id;
 103  } else {
 104      // Long form response - big chunk of html.
 105      $type = $_REQUEST['type'];
 106  
 107      /**
 108       * Filters the returned ID of an uploaded attachment.
 109       *
 110       * The dynamic portion of the hook name, `$type`, refers to the attachment type,
 111       * such as 'image', 'audio', 'video', 'file', etc.
 112       *
 113       * @since 2.5.0
 114       *
 115       * @param int $id Uploaded attachment ID.
 116       */
 117      echo apply_filters( "async_upload_{$type}", $id );
 118  }