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/wp-admin/ -> media-upload.php (source)

   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  if ( ! isset( $_GET['inline'] ) ) {
  13      define( 'IFRAME_REQUEST', true );
  14  }
  15  
  16  /** Load WordPress Administration Bootstrap */
  17  require_once( dirname( __FILE__ ) . '/admin.php' );
  18  
  19  if ( ! current_user_can( 'upload_files' ) ) {
  20      wp_die( __( 'Sorry, you are not allowed to upload files.' ), 403 );
  21  }
  22  
  23  wp_enqueue_script( 'plupload-handlers' );
  24  wp_enqueue_script( 'image-edit' );
  25  wp_enqueue_script( 'set-post-thumbnail' );
  26  wp_enqueue_style( 'imgareaselect' );
  27  wp_enqueue_script( 'media-gallery' );
  28  
  29  header( 'Content-Type: ' . get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ) );
  30  
  31  // IDs should be integers
  32  $ID      = isset( $ID ) ? (int) $ID : 0;
  33  $post_id = isset( $post_id ) ? (int) $post_id : 0;
  34  
  35  // Require an ID for the edit screen.
  36  if ( isset( $action ) && $action == 'edit' && ! $ID ) {
  37      wp_die(
  38          '<h1>' . __( 'Something went wrong.' ) . '</h1>' .
  39          '<p>' . __( 'Invalid item ID.' ) . '</p>',
  40          403
  41      );
  42  }
  43  
  44  if ( ! empty( $_REQUEST['post_id'] ) && ! current_user_can( 'edit_post', $_REQUEST['post_id'] ) ) {
  45      wp_die(
  46          '<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .
  47          '<p>' . __( 'Sorry, you are not allowed to edit this item.' ) . '</p>',
  48          403
  49      );
  50  }
  51  
  52  // Upload type: image, video, file, ..?
  53  if ( isset( $_GET['type'] ) ) {
  54      $type = strval( $_GET['type'] );
  55  } else {
  56      /**
  57       * Filters the default media upload type in the legacy (pre-3.5.0) media popup.
  58       *
  59       * @since 2.5.0
  60       *
  61       * @param string $type The default media upload type. Possible values include
  62       *                     'image', 'audio', 'video', 'file', etc. Default 'file'.
  63       */
  64      $type = apply_filters( 'media_upload_default_type', 'file' );
  65  }
  66  
  67  // Tab: gallery, library, or type-specific.
  68  if ( isset( $_GET['tab'] ) ) {
  69      $tab = strval( $_GET['tab'] );
  70  } else {
  71      /**
  72       * Filters the default tab in the legacy (pre-3.5.0) media popup.
  73       *
  74       * @since 2.5.0
  75       *
  76       * @param string $type The default media popup tab. Default 'type' (From Computer).
  77       */
  78      $tab = apply_filters( 'media_upload_default_tab', 'type' );
  79  }
  80  
  81  $body_id = 'media-upload';
  82  
  83  // Let the action code decide how to handle the request.
  84  if ( $tab == 'type' || $tab == 'type_url' || ! array_key_exists( $tab, media_upload_tabs() ) ) {
  85      /**
  86       * Fires inside specific upload-type views in the legacy (pre-3.5.0)
  87       * media popup based on the current tab.
  88       *
  89       * The dynamic portion of the hook name, `$type`, refers to the specific
  90       * media upload type. Possible values include 'image', 'audio', 'video',
  91       * 'file', etc.
  92       *
  93       * The hook only fires if the current `$tab` is 'type' (From Computer),
  94       * 'type_url' (From URL), or, if the tab does not exist (i.e., has not
  95       * been registered via the {@see 'media_upload_tabs'} filter.
  96       *
  97       * @since 2.5.0
  98       */
  99      do_action( "media_upload_{$type}" );
 100  } else {
 101      /**
 102       * Fires inside limited and specific upload-tab views in the legacy
 103       * (pre-3.5.0) media popup.
 104       *
 105       * The dynamic portion of the hook name, `$tab`, refers to the specific
 106       * media upload tab. Possible values include 'library' (Media Library),
 107       * or any custom tab registered via the {@see 'media_upload_tabs'} filter.
 108       *
 109       * @since 2.5.0
 110       */
 111      do_action( "media_upload_{$tab}" );
 112  }
 113  


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