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# coding: utf-8
# BlackSmith mark.2
# exp_name = "dns" # /code.py v.x2
# Id: 34~2c
# Code © (2012-2013) by WitcherGeralt [alkorgun@gmail.com]
class expansion_temp(expansion):
def __init__(self, name):
expansion.__init__(self, name)
import socket
def command_dns(self, stype, source, adress, disp):
if adress:
try:
name, alias, addrs = self.socket.gethostbyaddr(adress.encode("idna"))
except self.socket.error:
answer = AnsBase[7]
else:
addrs.insert(0, name)
answer = ", ".join(addrs)
else:
answer = AnsBase[1]
Answer(answer, stype, source, disp)
def command_port(self, stype, source, adress, disp):
if adress:
adress = adress.split()
if len(adress) == 2:
host, port = adress
if port.isdigit():
server = (host.encode("idna"), int(port))
if ":" in host:
flag = self.socket.AF_INET6
server = server.__add__((0, 0))
host = host.join(("[", "]"))
else:
flag = self.socket.AF_INET
sock = self.socket.socket(flag, self.socket.SOCK_STREAM)
sock.settimeout(6)
try:
sock.connect(server)
except:
answer = "{0}:{1} is closed.".format(host, port)
else:
answer = "{0}:{1} is opened.".format(host, port)
finally:
sock.close()
else:
answer = AnsBase[30]
else:
answer = AnsBase[2]
else:
answer = AnsBase[1]
Answer(answer, stype, source, disp)
commands = (
(command_dns, "dns", 1,),
(command_port, "port", 1,)
)
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