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diff --git a/src/client/HTTPEngineSender.hpp b/src/client/HTTPEngineSender.hpp
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+/* This file is part of Ingen.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen 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 details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef HTTPENGINESENDER_H
+#define HTTPENGINESENDER_H
+
+#include <inttypes.h>
+#include <string>
+#include <libsoup/soup.h>
+#include "interface/EngineInterface.hpp"
+using std::string;
+using Ingen::Shared::EngineInterface;
+using Ingen::Shared::ClientInterface;
+
+namespace Ingen {
+namespace Client {
+
+
+/* HTTP (via libsoup) interface to the engine.
+ *
+ * Clients can use this opaquely as an EngineInterface to control the engine
+ * over HTTP (whether over a network or not).
+ *
+ * \ingroup IngenClient
+ */
+class HTTPEngineSender : public EngineInterface {
+public:
+	HTTPEngineSender(const string& engine_url);
+	~HTTPEngineSender();
+	
+	string uri() const { return _engine_url; }
+	
+	inline int32_t next_id()
+	{ int32_t ret = (_id == -1) ? -1 : _id++; return ret; }
+
+	void set_next_response_id(int32_t id) { _id = id; }
+	void disable_responses() { _id = -1; }
+
+	void attach(int32_t ping_id, bool block);
+
+
+	/* *** EngineInterface implementation below here *** */
+	
+	void enable()  { _enabled = true; }
+	void disable() { _enabled = false; }
+	
+	void bundle_begin()   { transfer_begin(); }
+	void bundle_end()     { transfer_end(); }
+	
+	void transfer_begin();
+	void transfer_end();
+
+	// Client registration
+	void register_client(ClientInterface* client);
+	void unregister_client(const string& uri);
+
+	// Engine commands
+	void load_plugins();
+	void activate();
+	void deactivate();
+	void quit();
+	
+	// Object commands
+	
+	void new_patch(const string& path,
+	               uint32_t      poly);
+
+	void new_port(const string& path,
+	              uint32_t      index,
+	              const string& data_type,
+	              bool          is_output);
+
+	void new_node(const string& path,
+	              const string& plugin_uri);
+	
+	void new_node_deprecated(const string& path,
+	                         const string& plugin_type,
+	                         const string& library_name,
+	                         const string& plugin_label);
+
+	void rename(const string& old_path,
+	            const string& new_name);
+
+	void destroy(const string& path);
+
+	void clear_patch(const string& patch_path);
+	
+	void connect(const string& src_port_path,
+	             const string& dst_port_path);
+
+	void disconnect(const string& src_port_path,
+	                const string& dst_port_path);
+
+	void disconnect_all(const string& parent_patch_path,
+	                    const string& node_path);
+
+	void set_port_value(const string&     port_path,
+	                    const Raul::Atom& value);
+
+	void set_voice_value(const string&     port_path,
+	                     uint32_t          voice,
+	                     const Raul::Atom& value);
+	
+	void set_program(const string& node_path,
+	                 uint32_t      bank,
+	                 uint32_t      program);
+
+	void midi_learn(const string& node_path);
+
+	void set_variable(const string&     obj_path,
+	                  const string&     predicate,
+	                  const Raul::Atom& value);
+	
+	void set_property(const string&     obj_path,
+	                  const string&     predicate,
+	                  const Raul::Atom& value);
+	
+	// Requests //
+	void ping();
+	void request_plugin(const string& uri);
+	void request_object(const string& path);
+	void request_port_value(const string& port_path);
+	void request_variable(const string& path, const string& key);
+	void request_property(const string& path, const string& key);
+	void request_plugins();
+	void request_all_objects();
+
+protected:
+	SoupSession* _session;
+	const string _engine_url;
+	int          _client_port;
+	int32_t      _id;
+	bool         _enabled;
+};
+
+
+} // namespace Client
+} // namespace Ingen
+
+#endif // HTTPENGINESENDER_H
+