Differenze per "fakeDNS.py"

Differenze tra le versioni 1 e 6 (in 5 versioni)

# # ATTENTION: See dnsmasq --address=/#/1.2.3.4 before!!!!! # #FORMAT python #! /usr/bin/env python

# Fake dns multithread

from SocketServer import *

FAKEADDRESS="111.111.111.111" PORT=53 #udp

class DNSQuery:

#da http://preachermm.blogspot.com/2006/04/servidor-fake-dns-en-python.html (single thread) def init(self, data):
- self.data=data
  self.dominio= tipo = (ord(data[2]) >> 3) & 15 # Opcode bits if tipo == 0: # Standard query
  - ini=12 lon=ord(data[ini]) while lon != 0:
    self.dominio+=data[ini+1:ini+lon+1]+'.' ini+=lon+1 lon=ord(data[ini])
def respuesta(self, ip):
- packet= if self.dominio:
  - packet+=self.data[:2] + "\x81\x80" packet+=self.data[4:6] + self.data[4:6] + '\x00\x00\x00\x00' # Questions and Answers Counts packet+=self.data[12:] # Original Domain Name Question packet+='\xc0\x0c' # Pointer to domain name
    packet+='\x00\x01\x00\x01\x00\x00\x00\x3c\x00\x04' # Response type, ttl and resource data length -> 4 bytes packet+=str.join(,map(lambda x: chr(int(x)), ip.split('.'))) # 4bytes of IP
  return packet

#DNSQuery

class DNSRequestHandler (DatagramRequestHandler):

def handle(self):
DNSRequest=self.rfile.read() q=DNSQuery(DNSRequest) DNSDatagram=q.respuesta(FAKEADDRESS) self.wfile.write(DNSDatagram)

#DNSRequestHandler

#crea una classe di server udp threadizzato class FakeDNSServer (ThreadingMixIn, UDPServer): pass

dummyDNS=FakeDNSServer((,PORT),DNSRequestHandler)

#per prevenire attacchi, l'unico modo x fermare il server e' killarlo (SIGTERM, SIGKILL) o premere ctrl-C going=True while going:

try:
- dummyDNS.serve_forever()
except KeyboardInterrupt:
- going=False
except:
- pass

-  ⇤ ← Versione 1 del 2006-10-20 19:42:15 → 
  Dimensione: 23
  Autore: ClauzClauz
  Commento:
+   ← Versione 6 del 2009-10-16 21:55:26 → ⇥
  Dimensione: 1931
  Autore: 93-40-118-16
  Commento:
-Le cancellazioni sono segnalate in questo modo.
+Le aggiunte sono segnalate in questo modo.
 Linea 1:
-Fake dns threadizzato
+#
# ATTENTION: See dnsmasq --address=/#/1.2.3.4 before!!!!!
#
#FORMAT python
#! /usr/bin/env python

# Fake dns multithread

from SocketServer import *

FAKEADDRESS="111.111.111.111"
PORT=53 #udp

class DNSQuery:
  #da http://preachermm.blogspot.com/2006/04/servidor-fake-dns-en-python.html (single thread)
  def __init__(self, data):
    self.data=data
    self.dominio=''
    tipo = (ord(data[2]) >> 3) & 15   # Opcode bits
    if tipo == 0:                     # Standard query
      ini=12
      lon=ord(data[ini])
      while lon != 0:
        self.dominio+=data[ini+1:ini+lon+1]+'.'
        ini+=lon+1
        lon=ord(data[ini])

  def respuesta(self, ip):
    packet=''
    if self.dominio:
      packet+=self.data[:2] + "\x81\x80"
      packet+=self.data[4:6] + self.data[4:6] + '\x00\x00\x00\x00'   # Questions and Answers Counts
      packet+=self.data[12:]                                         # Original Domain Name Question
      packet+='\xc0\x0c'                                             # Pointer to domain name
      packet+='\x00\x01\x00\x01\x00\x00\x00\x3c\x00\x04'             # Response type, ttl and resource data length -> 4 bytes
      packet+=str.join('',map(lambda x: chr(int(x)), ip.split('.'))) # 4bytes of IP
    return packet
#DNSQuery
    
class DNSRequestHandler (DatagramRequestHandler):
 def handle(self):
  DNSRequest=self.rfile.read()
  q=DNSQuery(DNSRequest)
   DNSDatagram=q.respuesta(FAKEADDRESS)
    self.wfile.write(DNSDatagram)
#DNSRequestHandler

#crea una classe di server udp threadizzato
class FakeDNSServer (ThreadingMixIn, UDPServer): pass

dummyDNS=FakeDNSServer(('',PORT),DNSRequestHandler)

#per prevenire attacchi, l'unico modo x fermare il server e' killarlo (SIGTERM, SIGKILL) o premere ctrl-C
going=True
while going:
 try:
  dummyDNS.serve_forever()
  except KeyboardInterrupt:
   going=False
 except:
  pass