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auto_block.py
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auto_block.py
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#!/usr/bin/python
# -*- coding: UTF-8 -*-
import logging
import time
import sys
import os
import configloader
import importloader
import socket
import re
import platform
import fcntl
from shadowsocks import common, shell
class AutoBlock(object):
def __init__(self):
import threading
self.event = threading.Event()
self.start_line = self.file_len("/etc/hosts.deny")
self.has_stopped = False
def get_ip(self, text):
if common.match_ipv4_address(text) is not None:
return common.match_ipv4_address(text)
else:
if common.match_ipv6_address(text) is not None:
return common.match_ipv6_address(text)
return None
def file_len(self, fname):
return sum(1 for line in open(fname))
def auto_block_thread(self):
global webapi
server_ip = socket.gethostbyname(
configloader.get_config().MYSQL_HOST)
if configloader.get_config().API_INTERFACE == 'modwebapi':
# 读取节点IP
# SELECT * FROM `ss_node` where `node_ip` != ''
node_ip_list = []
data = webapi.getApi('nodes')
for node in data:
temp_list = node['node_ip'].split(',')
node_ip_list.append(temp_list[0])
else:
import cymysql
if configloader.get_config().MYSQL_SSL_ENABLE == 1:
conn = cymysql.connect(
host=configloader.get_config().MYSQL_HOST,
port=configloader.get_config().MYSQL_PORT,
user=configloader.get_config().MYSQL_USER,
passwd=configloader.get_config().MYSQL_PASS,
db=configloader.get_config().MYSQL_DB,
charset='utf8',
ssl={
'ca': configloader.get_config().MYSQL_SSL_CA,
'cert': configloader.get_config().MYSQL_SSL_CERT,
'key': configloader.get_config().MYSQL_SSL_KEY})
else:
conn = cymysql.connect(
host=configloader.get_config().MYSQL_HOST,
port=configloader.get_config().MYSQL_PORT,
user=configloader.get_config().MYSQL_USER,
passwd=configloader.get_config().MYSQL_PASS,
db=configloader.get_config().MYSQL_DB,
charset='utf8')
conn.autocommit(True)
# 读取节点IP
# SELECT * FROM `ss_node` where `node_ip` != ''
node_ip_list = []
cur = conn.cursor()
cur.execute(
"SELECT `node_ip` FROM `ss_node` where `node_ip` != ''")
for r in cur.fetchall():
temp_list = str(r[0]).split(',')
node_ip_list.append(temp_list[0])
cur.close()
deny_file = open('/etc/hosts.deny')
fcntl.flock(deny_file.fileno(), fcntl.LOCK_EX)
deny_lines = deny_file.readlines()
deny_file.close()
logging.info("Read hosts.deny from line " + str(self.start_line))
real_deny_list = deny_lines[self.start_line:]
denyed_ip_list = []
data = []
for line in real_deny_list:
if self.get_ip(line) and line.find('#') != 0:
ip = self.get_ip(line)
if str(ip).find(str(server_ip)) != -1:
i = 0
for line in deny_lines:
if line.find(ip) != -1:
del deny_lines[i]
i = i + 1
deny_file = open("/etc/hosts.deny", "w+")
fcntl.flock(deny_file.fileno(), fcntl.LOCK_EX)
for line in deny_lines:
deny_file.write(line)
deny_file.close()
continue
has_match_node = False
for node_ip in node_ip_list:
if str(ip).find(node_ip) != -1:
i = 0
for line in deny_lines:
if line.find(ip) != -1:
del deny_lines[i]
i = i + 1
deny_file = open("/etc/hosts.deny", "w+")
fcntl.flock(deny_file.fileno(), fcntl.LOCK_EX)
for line in deny_lines:
deny_file.write(line)
deny_file.close()
has_match_node = True
continue
if has_match_node:
continue
if configloader.get_config().API_INTERFACE == 'modwebapi':
data.append({'ip': ip})
logging.info("Block ip:" + str(ip))
else:
cur = conn.cursor()
cur.execute(
"SELECT * FROM `blockip` where `ip` = '" + str(ip) + "'")
rows = cur.fetchone()
cur.close()
if rows is not None:
continue
cur = conn.cursor()
cur.execute(
"INSERT INTO `blockip` (`id`, `nodeid`, `ip`, `datetime`) VALUES (NULL, '" +
str(
configloader.get_config().NODE_ID) +
"', '" +
str(ip) +
"', unix_timestamp())")
cur.close()
logging.info("Block ip:" + str(ip))
denyed_ip_list.append(ip)
if configloader.get_config().API_INTERFACE == 'modwebapi':
webapi.postApi(
'func/block_ip', {'node_id': configloader.get_config().NODE_ID}, {'data': data})
if configloader.get_config().API_INTERFACE == 'modwebapi':
rows = webapi.getApi('func/block_ip')
else:
cur = conn.cursor()
cur.execute(
"SELECT * FROM `blockip` where `datetime`>unix_timestamp()-60")
rows = cur.fetchall()
cur.close()
deny_str = ""
deny_str_at = ""
for row in rows:
if configloader.get_config().API_INTERFACE == 'modwebapi':
node = row['nodeid']
ip = self.get_ip(row['ip'])
else:
node = row[1]
ip = self.get_ip(row[2])
if ip is not None:
if str(node) == str(configloader.get_config().NODE_ID):
if configloader.get_config().ANTISSATTACK == 1 and configloader.get_config(
).CLOUDSAFE == 1 and ip not in denyed_ip_list:
if common.is_ip(ip):
if common.is_ip(ip) == socket.AF_INET:
os.system(
'route add -host %s gw 127.0.0.1' % str(ip))
deny_str = deny_str + "\nALL: " + str(ip)
else:
os.system(
'ip -6 route add ::1/128 via %s/128' % str(ip))
deny_str = deny_str + \
"\nALL: [" + str(ip) + "]/128"
logging.info("Remote Block ip:" + str(ip))
else:
if common.is_ip(ip):
if common.is_ip(ip) == socket.AF_INET:
os.system(
'route add -host %s gw 127.0.0.1' % str(ip))
deny_str = deny_str + "\nALL: " + str(ip)
else:
os.system(
'ip -6 route add ::1/128 via %s/128' %
str(ip))
deny_str = deny_str + \
"\nALL: [" + str(ip) + "]/128"
logging.info("Remote Block ip:" + str(ip))
deny_file = open('/etc/hosts.deny', 'a')
fcntl.flock(deny_file.fileno(), fcntl.LOCK_EX)
deny_file.write(deny_str)
deny_file.close()
if configloader.get_config().ANTISSATTACK == 1 and configloader.get_config().CLOUDSAFE == 1:
deny_file = open('/etc/hosts.deny', 'a')
fcntl.flock(deny_file.fileno(), fcntl.LOCK_EX)
deny_file.write(deny_str_at)
deny_file.close()
if configloader.get_config().API_INTERFACE == 'modwebapi':
rows = webapi.getApi('func/unblock_ip')
else:
cur = conn.cursor()
cur.execute(
"SELECT * FROM `unblockip` where `datetime`>unix_timestamp()-60")
rows = cur.fetchall()
cur.close()
conn.close()
deny_file = open('/etc/hosts.deny')
fcntl.flock(deny_file.fileno(), fcntl.LOCK_EX)
deny_lines = deny_file.readlines()
deny_file.close()
i = 0
for line in deny_lines:
for row in rows:
if configloader.get_config().API_INTERFACE == 'modwebapi':
ip = str(row['ip'])
else:
ip = str(row[1])
if line.find(ip) != -1:
del deny_lines[i]
if common.is_ip(ip):
if common.is_ip(ip) == socket.AF_INET:
os.system(
'route del -host %s gw 127.0.0.1' % str(ip))
else:
os.system(
'ip -6 route del ::1/128 via %s/128' %
str(ip))
logging.info("Unblock ip:" + str(ip))
i = i + 1
deny_file = open("/etc/hosts.deny", "w+")
fcntl.flock(deny_file.fileno(), fcntl.LOCK_EX)
for line in deny_lines:
deny_file.write(line)
deny_file.close()
self.start_line = self.file_len("/etc/hosts.deny")
@staticmethod
def thread_db(obj):
if configloader.get_config().CLOUDSAFE == 0 or platform.system() != 'Linux':
return
if configloader.get_config().API_INTERFACE == 'modwebapi':
import webapi_utils
global webapi
webapi = webapi_utils.WebApi()
global db_instance
db_instance = obj()
try:
while True:
try:
db_instance.auto_block_thread()
except Exception as e:
import traceback
trace = traceback.format_exc()
logging.error(trace)
#logging.warn('db thread except:%s' % e)
if db_instance.event.wait(60):
break
if db_instance.has_stopped:
break
except KeyboardInterrupt as e:
pass
db_instance = None
@staticmethod
def thread_db_stop():
global db_instance
db_instance.has_stopped = True
db_instance.event.set()