/*
* Certificate Store
* (C) 1999-2019 Jack Lloyd
* (C) 2019      René Meusel
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#ifndef BOTAN_CERT_STORE_SYSTEM_MACOS_H_
#define BOTAN_CERT_STORE_SYSTEM_MACOS_H_

#include <memory>

#include <botan/certstor.h>

namespace Botan {

class Certificate_Store_MacOS_Impl;

/**
* Certificate Store that is backed by the system trust store on macOS. This
* opens a handle to the macOS keychain and serves certificate queries directly
* from there.
*/
class BOTAN_PUBLIC_API(2, 10) Certificate_Store_MacOS final : public Certificate_Store {
   public:
      Certificate_Store_MacOS();

      Certificate_Store_MacOS(const Certificate_Store_MacOS&) = default;
      Certificate_Store_MacOS(Certificate_Store_MacOS&&) = default;
      Certificate_Store_MacOS& operator=(const Certificate_Store_MacOS&) = default;
      Certificate_Store_MacOS& operator=(Certificate_Store_MacOS&&) = default;

      /**
      * @return DNs for all certificates managed by the store
      */
      std::vector<X509_DN> all_subjects() const override;

      /**
      * Find a certificate by Subject DN and (optionally) key identifier
      * @return the first certificate that matches
      */
      std::optional<X509_Certificate> find_cert(const X509_DN& subject_dn,
                                                const std::vector<uint8_t>& key_id) const override;

      /**
      * Find all certificates with a given Subject DN.
      * Subject DN and even the key identifier might not be unique.
      */
      std::vector<X509_Certificate> find_all_certs(const X509_DN& subject_dn,
                                                   const std::vector<uint8_t>& key_id) const override;

      /**
      * Find a certificate by searching for one with a matching SHA-1 hash of
      * public key.
      * @return a matching certificate or nullptr otherwise
      */
      std::optional<X509_Certificate> find_cert_by_pubkey_sha1(const std::vector<uint8_t>& key_hash) const override;

      /**
       * @throws Not_Implemented
       */
      std::optional<X509_Certificate> find_cert_by_raw_subject_dn_sha256(
         const std::vector<uint8_t>& subject_hash) const override;

      /**
       * Fetching CRLs is not supported by the keychain on macOS. This will
       * always return an empty list.
       */
      std::optional<X509_CRL> find_crl_for(const X509_Certificate& subject) const override;

   private:
      std::shared_ptr<Certificate_Store_MacOS_Impl> m_impl;
};

}  // namespace Botan

#endif