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/*
 * Copyright (c) 2010-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#pragma once

#include <boost/noncopyable.hpp>
#include <boost/signals2.hpp>

#include <openssl/ssl.h>

#include <Swiften/Base/ByteArray.h>
#include <Swiften/TLS/CertificateWithKey.h>
#include <Swiften/TLS/TLSContext.h>

namespace Swift {

    class OpenSSLContext : public TLSContext, boost::noncopyable {
        public:
            OpenSSLContext();
            virtual ~OpenSSLContext();

            void connect();
            bool setClientCertificate(CertificateWithKey::ref cert);

            void handleDataFromNetwork(const SafeByteArray&);
            void handleDataFromApplication(const SafeByteArray&);

            std::vector<Certificate::ref> getPeerCertificateChain() const;
            std::shared_ptr<CertificateVerificationError> getPeerCertificateVerificationError() const;

            virtual ByteArray getFinishMessage() const;

        private:
            static void ensureLibraryInitialized();

            static CertificateVerificationError::Type getVerificationErrorTypeForResult(int);

            void doConnect();
            void sendPendingDataToNetwork();
            void sendPendingDataToApplication();

        private:
            enum State { Start, Connecting, Connected, Error };

            State state_;
            SSL_CTX* context_;
            SSL* handle_;
            BIO* readBIO_;
            BIO* writeBIO_;
    };
}