formats/zip/zlib_util.h

// Copyright 2026 Google LLC
//
// 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
//
//    https://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 THIRD_PARTY_CREDENTIO_FORMATS_ZIP_ZLIB_UTIL_H_
#define THIRD_PARTY_CREDENTIO_FORMATS_ZIP_ZLIB_UTIL_H_

#include <cstddef>
#include <string>

#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"

namespace credentio {

// Compresses the given data using ZLib.
//
// NOTE: This function should be used for compressing small files, like
// `[Content_Types].xml`. It shouldn't be used for large data files.
absl::StatusOr<std::string> Compress(absl::string_view data);

// Uncompresses the given data using ZLib. Returns an error if the uncompressed
// size exceeds `max_uncompressed_size` (default is 1 MiB).
//
// NOTE: This function should be used for uncompressing small files, like
// `[Content_Types].xml`. It shouldn't be used for large data files.
absl::StatusOr<std::string> Uncompress(absl::string_view data,
                                       size_t max_uncompressed_size = 1024 *
                                                                      1024);

}  // namespace credentio

#endif  // THIRD_PARTY_CREDENTIO_FORMATS_ZIP_ZLIB_UTIL_H_