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import subprocess
import time
import sys
import os
PYTHON_VERSION = sys.version_info[0]
CACHE = {}
CACHE_MAX_AGE = 60*60*48 # 48h
try:
import json
except:
import simplejson as json
def cache_load(cf):
if not os.path.isfile(cf):
return
global CACHE
f = open(cf, 'r')
try:
CACHE = json.load(f)
except:
pass
f.close()
def cache_save(cf):
global CACHE
f = open(cf, 'w')
json.dump(CACHE, f)
f.close()
def do_query(dl, force=0, cache_file=None, slow_down=0, ignore_returncode=0):
k = '.'.join(dl)
if cache_file: cache_load(cache_file)
if force or k not in CACHE or CACHE[k][0] < time.time() - CACHE_MAX_AGE:
CACHE[k] = (
int(time.time()),
_do_whois_query(dl, ignore_returncode),
)
if cache_file:
cache_save(cache_file)
if slow_down:
time.sleep(slow_down)
return CACHE[k][1]
def _do_whois_query(dl, ignore_returncode):
"""
Linux 'whois' command wrapper
"""
p = subprocess.Popen(['whois', '.'.join(dl)], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
r = p.communicate()[0]
r = r.decode() if PYTHON_VERSION == 3 else r
if not ignore_returncode and p.returncode != 0 and p.returncode != 1:
raise Exception(r)
return r
"""
import socket
def _do_whois_query(dl):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((('%s.whois-servers.net' % dl[-1], 43)))
s.send(("%s\r\n" % '.'.join(dl)).encode())
response = []
while 1:
t = s.recv(4096)
response.append(t)
if t == b'': break
s.close()
return b''.join(response).decode()
"""
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