First of the V0.6 changes.

- Adding basics for proxy connection.



git-svn-id: http://svn.code.sf.net/p/retroshare/code/branches/v0.6-initdev@6682 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/pqi/pqisslproxy.h

@@ -0,0 +1,89 @@
+/*
+ * pqisslproxy.h
+ *
+ * 3P/PQI network interface for RetroShare.
+ *
+ * Copyright 2004-2013 by Robert Fernie.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License Version 2.1 as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA.
+ *
+ * Please report all bugs and problems to "retroshare@lunamutt.com".
+ *
+ */
+
+
+
+#ifndef MRK_PQI_SSL_PROXY_HEADER
+#define MRK_PQI_SSL_PROXY_HEADER
+
+#include <openssl/ssl.h>
+
+// operating system specific network header.
+#include "pqi/pqinetwork.h"
+
+#include <string>
+#include <map>
+
+#include "pqi/pqissl.h"
+
+ /* pqisslproxy uses SOCKS5 proxy to hidden your own address and connect to peers.
+  * It uses the Domain Name interface of SOCKS5, as opposed to an IP address.
+  */
+
+class pqisslproxy;
+class cert;
+
+/* This provides a NetBinInterface, which is 
+ * primarily inherited from pqissl.
+ * fns declared here are different -> all others are identical.
+ */
+
+class pqisslproxy: public pqissl
+{
+public:
+        pqisslproxy(pqissllistener *l, PQInterface *parent, p3LinkMgr *lm);
+virtual ~pqisslproxy();
+
+	// NetInterface. Is the same.
+	// BinInterface. Is the same.
+
+virtual bool connect_parameter(uint32_t type, const std::string &value);
+virtual bool connect_parameter(uint32_t type, uint32_t value);
+
+protected:
+
+//Initiate is the same - except it uses the Proxy Address rather than the Peer Address.
+// minor tweaks to setup data state.
+virtual int Initiate_Connection(); 
+
+// The real overloading is done in Basic Connection Complete.
+// Instead of just checking for an open socket, we need to communicate with the SOCKS5 proxy.
+virtual int Basic_Connection_Complete();
+
+// These are the internal steps in setting up the Proxy Connection.
+virtual int Proxy_Send_Method();
+virtual int Proxy_Method_Response();
+virtual int Proxy_Send_Address();
+virtual int Proxy_Connection_Complete();
+
+private:
+
+	uint32_t mProxyState;
+
+	std::string mDomainAddress;
+        uint16_t mRemotePort;
+};
+
+#endif // MRK_PQI_SSL_PROXY_HEADER