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hackney

3.0.0
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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support

Retired package: Release invalid - Use 3.0.1 instead
Security advisory: This version has known vulnerabilities. View advisories
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hackney c_src boringssl include openssl pki signature_verify_cache.h
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c_src/boringssl/include/openssl/pki/signature_verify_cache.h 

// Copyright 2022 The Chromium Authors

//

// 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.



#if !defined(BSSL_PKI_SIGNATURE_VERIFY_CACHE_H_) && defined(__cplusplus)

#define BSSL_PKI_SIGNATURE_VERIFY_CACHE_H_



#include <openssl/base.h>   // IWYU pragma: export

#include <string>



BSSL_NAMESPACE_BEGIN



class OPENSSL_EXPORT SignatureVerifyCache {

 public:

  enum class Value {

    kValid,    // Cached as a valid signature result.

    kInvalid,  // Cached as an invalid signature result.

    kUnknown,  // Cache has no information.

  };



  virtual ~SignatureVerifyCache() = default;



  // This interface uses a const std::string reference instead of

  // std::string_view because any implementation that may reasonably want to use

  // std::unordered_map or similar can run into problems with std::hash before

  // C++20. (https://en.cppreference.com/w/cpp/container/unordered_map/find)



  // |Store| is called to store the result of a verification for |key| as kValid

  // or kInvalid after a signature check.

  virtual void Store(const std::string &key, Value value) = 0;



  // |Check| is called to fetch a cached value for a verification for |key|. If

  // the result is kValid, or kInvalid, signature checking is skipped and the

  // corresponding cached result is used.  If the result is kUnknown signature

  // checking is performed and the corresponding result saved using |Store|.

  virtual Value Check(const std::string &key) = 0;

};



BSSL_NAMESPACE_END



#endif  // BSSL_PKI_SIGNATURE_VERIFY_CACHE_H_ && __cplusplus