from SimpleXMLRPCServer import SimpleXMLRPCServer
import xmlrpclib

def python_logo():
     with open("python_logo.jpg") as handle:
         return xmlrpclib.Binary(handle.read())

server = SimpleXMLRPCServer(("localhost", 8000))
print "Listening on port 8000..."
server.register_function(python_logo, 'python_logo')

server.serve_forever()

import xmlrpclib

proxy = xmlrpclib.ServerProxy("http://localhost:8000/")
with open("fetched_python_logo.jpg", "w") as handle:
    handle.write(proxy.python_logo().data)

import asyncore
from struct import pack,unpack
import socket

TRANSFER_BUF_SIZE=1024*8

class Transfer(asyncore.dispatcher):
	def __init__(self,sock,host):
		asyncore.dispatcher.__init__(self,sock)
		self.mode='head'
	def handle_read(self):
		if self.mode=='head':
			try:
				head_size=unpack('=H',self.recv(2))[0]
				self.file_size, file_name=unpack('=Q%ss' % (head_size-8), self.recv(head_size))
				self.file=open(file_name,'wb')
				self.mode='data'
				self.recived=0
			except Exception, e:
				print 'Bad head',e
				self.close()
		else:
			buf=self.recv(TRANSFER_BUF_SIZE)
			self.recived+=len(buf)
			self.file.write(buf)
			if self.recived==self.file_size:
				self.close()

class TransferServer(asyncore.dispatcher):
	def __init__(self, port=3333):
		asyncore.dispatcher.__init__(self)
		self.port = port
		self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
		self.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
		self.bind(("", port))
		self.listen(5)
		print 'server listed on %s port' % port
	def handle_accept(self):
		Transfer(*self.accept())

server=TransferServer()
asyncore.loop()

from struct import pack,unpack
import socket
from os.path import getsize

TRANSFER_BUF_SIZE=1024*8

fn='2.tgz'
rfn='1.tgz'
head=pack('=Q%ss' % len(rfn), getsize(fn), rfn )
file=open(fn)
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect( ('127.0.0.1', 3333) )
s.send(pack('=H',len(head)))
s.send(head)
while 1:
	buf=file.read(TRANSFER_BUF_SIZE)
	if buf=='': break
	s.send(buf)