diff --git a/src/netnode.py b/src/netnode.py
new file mode 100644
--- /dev/null
+++ b/src/netnode.py
@@ -0,0 +1,48 @@
+import socket
+import logging as log
+
+from networkers import NetworkReader,NetworkWriter
+from hashtree import HashTree
+
+
+class BaseConnection: # abstract
+	def __init__(self):
+		self._socket=None
+		self.incoming=None
+		self.outcoming=None
+
+	def createNetworkers(self):
+		fr=self._socket.makefile(mode="rb")
+		fw=self._socket.makefile(mode="wb")
+
+		self.incoming=NetworkReader(fr)
+		self.outcoming=NetworkWriter(fw)
+
+	def __enter__(self):
+		return self.incoming,self.outcoming
+
+	def __exit__(self, exc_type, exc_val, exc_tb):
+		self._socket.shutdown(socket.SHUT_RDWR)
+		self._socket.close()
+
+
+class NetNode:
+	def __init__(self,filename,treeFile=""):
+		self._incoming=None
+		self._outcoming=None
+
+		self._filename=filename
+		self._treeFile=treeFile
+
+		if treeFile:
+			self._tree=HashTree.load(treeFile)
+		else:
+			self._tree=HashTree.fromFile(filename)
+
+		self._newLeaves=dict()
+
+	def _updateTree(self):
+		log.info("updating hash tree...")
+		for (k,v) in self._newLeaves.items():
+			self._tree.updateLeaf(k, v)
+		self._tree.save(self._treeFile)