* Normalize a path
     */
    private String normalizePath(String path) {
        // Replace forward slashes with backslashes for consistency
        String normalized = path.replace('/', '\\');

        // Remove duplicate slashes
        normalized = normalized.replaceAll("\\\\+", "\\\\");

        // Remove trailing slash unless it's the root
        if (normalized.length() > 1 && normalized.endsWith("\\")) {

    assertThat(
      base
        .newBuilder()
        .addPathSegments("/d")
        .build()
        .encodedPath,
    ).isEqualTo("/a/b/c//d")

    // Add a string with two slashes: resulting URL gains three slashes.
    assertThat(
      base
        .newBuilder()
        .addPathSegments("//")
        .build()
        .encodedPath,
    ).isEqualTo("/a/b/c///")
    assertThat(

     */
    public static String normalizeSmbPath(String path) {
        validateSmbPath(path);

        // Normalize slashes
        path = path.replace('/', '\\');

        // Remove redundant slashes
        path = path.replaceAll("\\\\+", "\\\\");

        // Remove trailing slash unless it's root
        if (path.length() > 1 && path.endsWith("\\")) {
            path = path.substring(0, path.length() - 1);

    void testVariousFilenameFormats() {
        // Test UNC path
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, "\\\\server\\share"));

        // Test forward slashes
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, "//server/share"));

        // Test with spaces
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, "\\\\server\\my share\\file.txt"));

        /* Samba has a tendency to return referral paths and pathConsumed values
         * in such a way that there can be a slash at the end of the path. This
         * causes problems matching keys in resolve() where an extra slash causes
         * a mismatch. This strips trailing slashes from all keys to eliminate
         * this problem.
         */
        int ki = key.length();

 * Both the unnecessary port specification (`:80`) and the absent trailing slash (`/`) cause URI to
 * bucket the two URLs separately. This harms URI's usefulness in collections. Any application that
 * stores information-per-URL will need to either canonicalize manually, or suffer unnecessary
 * redundancy for such URLs.
 *
 * Because they don't attempt canonical form, these classes are surprisingly difficult to use

   *
   * <ul>
   *   <li>empty string becomes .
   *   <li>. stays as .
   *   <li>fold out ./
   *   <li>fold out ../ when possible
   *   <li>collapse multiple slashes
   *   <li>delete trailing slashes (unless the path is just "/")
   * </ul>
   *
   * <p>These heuristics do not always match the behavior of the filesystem. In particular, consider

   *
   * <ul>
   *   <li>empty string becomes .
   *   <li>. stays as .
   *   <li>fold out ./
   *   <li>fold out ../ when possible
   *   <li>collapse multiple slashes
   *   <li>delete trailing slashes (unless the path is just "/")
   * </ul>
   *
   * <p>These heuristics do not always match the behavior of the filesystem. In particular, consider

// such as ".." and "."
func hasBadPathComponent(path string) bool {
	n := len(path)
	if n > 32<<10 {
		// At 32K we are beyond reasonable.
		return true
	}
	i := 0
	// Skip leading slashes (for sake of Windows \ is included as well)
	for i < n && (path[i] == SlashSeparatorChar || path[i] == '\\') {
		i++
	}

	for i < n {
		// Find the next segment
		start := i

		return
	case o.Prefix == o.BaseDir:
		// No additional prefix
		return
	}
	// Remove basedir.
	o.FilterPrefix = strings.TrimPrefix(o.Prefix, o.BaseDir)
	// Remove leading and trailing slashes.
	o.FilterPrefix = strings.Trim(o.FilterPrefix, slashSeparator)

	if strings.Contains(o.FilterPrefix, slashSeparator) {
		// Sanity check, should not happen.
		o.FilterPrefix = ""
	}
}