import cgi
import hashlib
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler


class MyHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        pass

    def do_POST(self):
        fs = cgi.FieldStorage(self.rfile, environ={"REQUEST_METHOD": "POST", "CONTENT_TYPE": self.headers['Content-Type']})
        data = fs['data'].file.read()
        h = hashlib.new('sha1')
        h.update(data)
        open('got_data', 'wb').write(data)
        self.send_response(200, "OK")
        self.end_headers()
        self.wfile.write(h.hexdigest())


server_address = ('', 8080)
httpd = HTTPServer(server_address, MyHandler)
httpd.serve_forever()