refactor: inner blocks note links (#1973)

packages/blocks-editor/src/Lexical/Utils/sanitizeUrl.ts

@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+export const sanitizeUrl = (url: string): string => {
+  /** A pattern that matches safe  URLs. */
+  const SAFE_URL_PATTERN =
+    /^(?:(?:https?|mailto|ftp|tel|file|sms):|[^&:/?#]*(?:[/?#]|$))/gi;
+
+  /** A pattern that matches safe data URLs. */
+  const DATA_URL_PATTERN =
+    /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i;
+
+  url = String(url).trim();
+
+  if (url.match(SAFE_URL_PATTERN) || url.match(DATA_URL_PATTERN)) return url;
+
+  return `https://`;
+};