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/*
 * Copyright (c) 2010 Remko Tronçon
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#pragma once

#include <openssl/ssl.h>
#include <Swiften/Base/boost_bsignals.h>
#include <boost/noncopyable.hpp>

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

namespace Swift {

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

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

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

			Certificate::ref getPeerCertificate() const;
			boost::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_;
	};
}