Ticket #26825: 26825.3.diff

src/wp-admin/includes/media.php

@@ -2636 +2636 @@
         <?php
         elseif ( $attachment_id && 0 === strpos( $post->post_mime_type, 'audio/' ) ):
 
+                maybe_regenerate_attachment_metadata( $post );
+
                 echo wp_audio_shortcode( array( 'src' => $att_url ) );
 
         elseif ( $attachment_id && 0 === strpos( $post->post_mime_type, 'video/' ) ):
 
+                maybe_regenerate_attachment_metadata( $post );
+
                 $meta = wp_get_attachment_metadata( $attachment_id );
                 $w = ! empty( $meta['width'] ) ? min( $meta['width'], 600 ) : 0;
                 $h = 0;

src/wp-includes/media.php

@@ -2194 +2194 @@
         $gallery = get_post_gallery( $post, false );
         return empty( $gallery['src'] ) ? array() : $gallery['src'];
 }
+
+/**
+ * If an attachment is missing its metadata, try to regenerate it
+ *
+ * @param post $attachment Post object.
+ */
+function maybe_regenerate_attachment_metadata( $attachment ) {
+        if ( empty( $attachment ) || ( empty( $attachment->ID ) || ! $attachment_id = (int) $attachment->ID ) ) {
+                return;
+        }
+
+        $file = get_attached_file( $attachment_id );
+        $meta = wp_get_attachment_metadata( $attachment_id );
+        if ( empty( $meta ) && file_exists( $file ) ) {
+                $_meta = get_post_meta( $attachment_id );
+                $regeneration_lock = 'wp_regenerating_' . $attachment_id;
+                if ( ! array_key_exists( '_wp_attachment_metadata', $_meta ) && ! get_transient( $regeneration_lock ) ) {
+                        set_transient( $regeneration_lock, $file );
+                        wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
+                        delete_transient( $regeneration_lock );
+                }
+        }
+}
+ No newline at end of file