Digest.h

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#ifndef ZYPP_CORE_DIGEST_H
#define ZYPP_CORE_DIGEST_H
 
#include <string>
#include <iosfwd>
#include <memory>
#include <optional>
 
#include <zypp-core/Pathname.h>
#include <zypp-core/ByteArray.h>
#include <zypp-core/ByteCount.h>
 
namespace zypp {

    class Digest
    {
      private:
        class P;
        std::unique_ptr<P> _dp;
 
        // disabled
        Digest(const Digest& d) = delete;
        // disabled
        const Digest& operator=(const Digest& d) = delete;
 
      public:
 
        // moving is fine
        Digest(Digest&& other) noexcept;
        Digest& operator=( Digest&& other) noexcept;


        static const std::string & md5();
        static const std::string & sha1();
        static const std::string & sha224();
        static const std::string & sha256();
        static const std::string & sha384();
        static const std::string & sha512();
 
      public:
        Digest();
        ~Digest();

        bool create(const std::string& name);

        const std::string& name();

        bool update(const char* bytes, size_t len);

        bool update(std::istream& is, size_t bufsize = 4096);

        zypp::ByteCount bytesHashed () const;

        std::string digest();

        static std::string digestVectorToString ( const UByteArray &vec );
 
#ifdef __cpp_lib_string_view
        static ByteArray hexStringToByteArray ( std::string_view str );
        static UByteArray hexStringToUByteArray ( std::string_view str );
#endif

        UByteArray digestVector();

        bool reset();

        Digest clone() const;

        static std::string digest(const std::string& name, std::istream& is, size_t bufsize = 4096);

        static std::string digest( const std::string & name, const std::string & input, size_t bufsize = 4096 );
    };
 
} // namespace zypp
 
#endif