Ticket #48302: 48302.2.2.diff

src/wp-includes/post.php

@@ -7180 +7180 @@
          */
         return apply_filters( 'wp_get_original_image_path', $original_image, $attachment_id );
 }
+
+/**
+ * Retrieve the URL to an original attachment image.
+ *
+ * Similar to `wp_get_attachment_url()` however some images may have been
+ * processed after uploading. In this case this function returns the URL
+ * to the originally uploaded image file.
+ *
+ * @since 5.3.0
+ *
+ * @param int $attachment_id Attachment post ID.
+ * @return string|false Attachment image URL, false on error or if the attachment is not an image.
+ */
+function wp_get_original_image_url( $attachment_id ) {
+        if ( ! wp_attachment_is_image( $attachment_id ) ) {
+                return false;
+        }
+
+        $image_url = wp_get_attachment_url( $attachment_id );
+
+        if ( empty( $image_url ) ) {
+                return false;
+        }
+
+        $image_meta = wp_get_attachment_metadata( $attachment_id );
+
+        if ( empty( $image_meta['original_image'] ) ) {
+                $original_image_url = $image_url;
+        } else {
+                $original_image_url = path_join( dirname( $image_url ), $image_meta['original_image'] );
+        }
+
+        /**
+         * Filters the URL to the original attachment image.
+         *
+         * @since 5.3.0
+         *
+         * @param string $original_image_url URL to original image.
+         * @param int    $attachment_id      Attachment ID.
+         */
+        return apply_filters( 'wp_get_original_image_url', $original_image_url, $attachment_id );
+}