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proxy.py
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proxy.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
ProxyHandler is a http proxy based on Tornado. The default port is 8080.
Run this command to run the proxy:
python proxy --port=8080
Use the `port` option to change the proxy's port.
"""
import sys
import socket
import tornado.httpclient
import tornado.httpserver
import tornado.ioloop
import tornado.web
from models import *
from urlparse import urlparse
from sqlirunner import SqliRunner
domain = ""
urls_pool = set()
blacklist = []
class ProxyHandler(tornado.web.RequestHandler):
'''
A http proxy based on RequestHandler
'''
def render_request(self, url, callback=None, **kwargs):
'''
Use `AsyncHTTPClient` send http request
'''
req = tornado.httpclient.HTTPRequest(url, **kwargs)
asy_client = tornado.httpclient.AsyncHTTPClient()
asy_client.fetch(req, callback)
# Set supported methods for proxy
SUPPORTED_METHODS = ("GET", "HEAD", "POST", "DELETE", "PATCH", "PUT",
"OPTIONS", "CONNECT")
@tornado.web.asynchronous
def get(self):
# get request body
body = self.request.body
if not body:
body = None
try:
# send request by proxy
timeout = 5
# proxy sends the request
self.render_request(
self.request.uri,
callback=self.on_response,
method=self.request.method,
body=body,
headers=self.request.headers,
request_timeout=timeout,
follow_redirects=True,
allow_nonstandard_methods=True)
except tornado.httpclient.HTTPError as httperror:
if hasattr(httperror, 'response') and httperror.response:
self.on_response(httperror.response)
else:
self.set_status(500)
self.write('Internal server error:\n' + str(httperror))
self.finish()
def on_response(self, response):
'''
http requst callback
'''
global domain, urls_pool, blacklist
# handle exceptions
if response.error and type(response.error) != tornado.httpclient.HTTPError:
self.set_status(500)
self.write('Internal server error:\n' + str(response.error))
self.finish()
else:
# run the sqlmap
# only detect few content type:
# text/html, application/json
url = response.request.url
method = response.request.method
urlp = urlparse(url)
host_path = "%s://%s/%s" % (urlp.scheme, urlp.netloc, urlp.path)
content_type = response.headers.get_list('content-type')
if len(content_type) > 0:
content_type = content_type[0]
# default domain is null
if not domain:
if (method == 'GET' and urlp.query) or \
(method == 'POST' and response.body):
if ("text/html" in content_type) or \
("application/json" in content_type):
if (host_path not in urls_pool) and \
(urlp.netloc not in blacklist) and \
(response.code == 200):
urls_pool.add(host_path)
sqli_runner = SqliRunner(response.request)
sqli_runner.run()
# only detect the POST method and the GET
# method with query string in url
elif (method == 'GET' and urlp.query) or \
(method == 'POST' and response.body):
if urlp.netloc.endswith(domain) and (host_path not in urls_pool) \
and response.code == 200 and (urlp.netloc not in blacklist):
if ("text/html" in content_type) or \
("application/json" in content_type):
urls_pool.add(host_path)
sqli_runner = SqliRunner(response.request)
sqli_runner.run()
try:
self.set_status(response.code)
except ValueError, e:
pass
# print '[ValueError]:%s' % str(e)
# Set `self._headers` attribute for RequestHandler
headers = self._headers.keys()
for header in headers:
value = response.headers.get(header)
if value:
self.set_header(header, value)
# set the `set-cookie` header
cookies = response.headers.get_list('Set-Cookie')
if cookies:
for i in cookies:
self.add_header('Set-Cookie', i)
try:
if response.code != 304:
self.write(response.body)
except TypeError, e:
pass
# print '[TypeError]:%s' % str(e)
self.finish()
@tornado.web.asynchronous
def post(self):
self.get()
@tornado.web.asynchronous
def connect(self):
# 获取request的socket
req_stream = self.request.connection.stream
# get port
host, port = self.request.uri.split(':')
port = int(port)
def req_close(data=None):
if conn_stream.closed():
return
if data:
conn_stream.write(data)
conn_stream.close()
def write_to_server(data):
conn_stream.write(data)
def proxy_close(data=None):
if req_stream.closed():
return
if data:
req_stream.write(data)
req_stream.close(data)
def write_to_client(data):
req_stream.write(data)
def on_connect():
req_stream.read_until_close(req_close, write_to_server)
conn_stream.read_until_close(proxy_close, write_to_client)
req_stream.write(b'HTTP/1.0 200 Connection established\r\n\r\n')
# 创建iostream
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
conn_stream = tornado.iostream.IOStream(s)
conn_stream.connect((host, port), on_connect)
if __name__ == '__main__':
create_tables()
with open('blacklist.txt', 'r') as f:
blacklist = f.readlines()
blacklist = [i.replace("\n", "") for i in blacklist]
port = 8080
if len(sys.argv) == 3:
port = int(sys.argv[1])
domain = sys.argv[2]
print "Starting Proxy on port %s, domain %s" % (port, domain)
handlers = [
(r'.*', ProxyHandler),
]
app = tornado.web.Application(handlers=handlers)
app.listen(port)
tornado.ioloop.IOLoop.instance().start()