url_to_filename_encoder.h

Go to the documentation of this file.

/*
 * Copyright 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http:///www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef PAGESPEED_KERNEL_UTIL_URL_TO_FILENAME_ENCODER_H_
#define PAGESPEED_KERNEL_UTIL_URL_TO_FILENAME_ENCODER_H_

#include <cstddef>

#include "pagespeed/kernel/base/string.h"
#include "pagespeed/kernel/base/string_util.h"

namespace net_instaweb {

class UrlToFilenameEncoder {
 public:
  static void EncodeSegment(
      const StringPiece& filename_prefix,
      const StringPiece& escaped_ending,
      char dir_separator,
      GoogleString* encoded_filename);

  static bool Decode(const StringPiece& encoded_filename,
                     GoogleString* decoded_url);


  static const char kEscapeChar;
  static const char kTruncationChar;
  static const size_t kMaximumSubdirectoryLength;

  friend class UrlToFilenameEncoderTest;

 private:
  static void AppendSegment(
      GoogleString* segment,
      GoogleString* dest);
};

}  

#endif