ClickHouse/base/poco/NetSSL_OpenSSL/include/Poco/Net/PrivateKeyPassphraseHandler.h

//
// PrivateKeyPassphraseHandler.h
//
// Library: NetSSL_OpenSSL
// Package: SSLCore
// Module:  PrivateKeyPassphraseHandler
//
// Definition of the PrivateKeyPassphraseHandler class.
//
// Copyright (c) 2006-2009, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#ifndef NetSSL_PrivateKeyPassphraseHandler_INCLUDED
#define NetSSL_PrivateKeyPassphraseHandler_INCLUDED


#include "Poco/Net/NetSSL.h"


namespace Poco
{
namespace Net
{


    class NetSSL_API PrivateKeyPassphraseHandler
    /// A passphrase handler is needed whenever the private key of a certificate is loaded and the certificate is protected
    /// by a passphrase. The PrivateKeyPassphraseHandler's task is to provide that passphrase.
    /// One can install one's own PrivateKeyPassphraseHandler by implementing this interface. Note that
    /// in the implementation file of the subclass the following code must be present (assuming you use the namespace My_API
    /// and the name of your handler class is MyGuiHandler):
    ///
    ///    #include "Poco/Net/PrivateKeyFactory.h"
    ///    ...
    ///    POCO_REGISTER_KEYFACTORY(My_API, MyGuiHandler)
    ///
    /// One can either set the handler directly in the startup code of the main method of ones application by calling
    ///
    ///    SSLManager::instance().initialize(myguiHandler, myInvalidCertificateHandler, mySSLContext)
    ///
    /// or in case one's application extends Poco::Util::Application one can use an XML configuration and put the following entry
    /// under the path openSSL.privateKeyPassphraseHandler:
    ///
    ///    <privateKeyPassphraseHandler>
    ///        <name>MyGuiHandler</name>
    ///        <options>
    ///            [...] // Put optional config params for the handler here
    ///        </options>
    ///    </privateKeyPassphraseHandler>
    ///
    /// Note that the name of the passphrase handler must be same as the one provided to the POCO_REGISTER_KEYFACTORY macro.
    {
    public:
        PrivateKeyPassphraseHandler(bool onServerSide);
        /// Creates the PrivateKeyPassphraseHandler. Automatically registers at the SSLManager::PrivateKeyPassword event.

        virtual ~PrivateKeyPassphraseHandler();
        /// Destroys the PrivateKeyPassphraseHandler.

        virtual void onPrivateKeyRequested(const void * pSender, std::string & privateKey) = 0;
        /// Returns the requested private key in the parameter privateKey.

        bool serverSide() const;

    private:
        bool _serverSide;
    };


    //
    // inlines
    //
    inline bool PrivateKeyPassphraseHandler::serverSide() const
    {
        return _serverSide;
    }


}
} // namespace Poco::Net


#endif // NetSSL_PrivateKeyPassphraseHandler_INCLUDED