resolve #4328 by moving plugin into lib folder

src/lib/plugin/ns/SecureSocket.h

@@ -0,0 +1,72 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2015 Synergy Si Ltd.
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "net/TCPSocket.h"
+#include "base/XBase.h"
+
+class IEventQueue;
+class SocketMultiplexer;
+
+struct Ssl;
+
+//! Generic socket exception
+XBASE_SUBCLASS(XSecureSocket, XBase);
+
+
+//! Secure socket
+/*!
+A secure socket using SSL.
+*/
+class SecureSocket : public TCPSocket {
+public:
+	SecureSocket(IEventQueue* events, SocketMultiplexer* socketMultiplexer);
+	SecureSocket(IEventQueue* events,
+		SocketMultiplexer* socketMultiplexer,
+		ArchSocket socket);
+	~SecureSocket();
+
+	// IStream overrides
+	virtual UInt32		read(void* buffer, UInt32 n);
+	virtual void		write(const void* buffer, UInt32 n);
+	virtual bool		isReady() const;
+
+	void				connectSecureSocket();
+	void				acceptSecureSocket();
+	void				initSsl(bool server);
+	void				loadCertificates(const char* CertFile);
+
+private:
+	void				onConnected();
+
+	// SSL
+	void				initContext(bool server);
+	void				createSSL();
+	void				secureAccept(int s);
+	void				secureConnect(int s);
+	void				showCertificate();
+	bool				checkResult(int n);
+	void				showError();
+	void				throwError(const char* reason);
+	bool				getError();
+
+private:
+	Ssl*				m_ssl;
+	bool				m_ready;
+	char*				m_error;
+};