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cloudflare.py
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# | |
# Copyright (C) 2015 tknorris (Derived from Mikey1234's & Lambda's) | |
# | |
# This Program is free software; you can redistribute it and/or modify | |
# it under the terms of the GNU General Public License as published by | |
# the Free Software Foundation; either version 2, or (at your option) | |
# any later version. | |
# | |
# This Program is distributed in the hope that it will be useful, | |
# but WITHOUT ANY WARRANTY; without even the implied warranty of | |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
# GNU General Public License for more details. | |
# | |
# You should have received a copy of the GNU General Public License | |
# along with XBMC; see the file COPYING. If not, write to | |
# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
# http://www.gnu.org/copyleft/gpl.html | |
# | |
# This code is a derivative of the YouTube plugin for XBMC and associated works | |
# released under the terms of the GNU General Public License as published by | |
# the Free Software Foundation; version 3 | |
import re | |
import urllib2 | |
import urllib | |
import urlparse | |
import log_utils | |
import xbmc | |
from constants import USER_AGENT | |
MAX_TRIES = 3 | |
class NoRedirection(urllib2.HTTPErrorProcessor): | |
def http_response(self, request, response): | |
log_utils.log('Stopping Redirect', log_utils.LOGDEBUG) | |
return response | |
https_response = http_response | |
def solve_equation(equation): | |
try: | |
offset = 1 if equation[0] == '+' else 0 | |
return int(eval(equation.replace('!+[]', '1').replace('!![]', '1').replace('[]', '0').replace('(', 'str(')[offset:])) | |
except: | |
pass | |
def solve(url, cj, user_agent=None, wait=True): | |
if user_agent is None: user_agent = USER_AGENT | |
headers = {'User-Agent': user_agent, 'Referer': url} | |
if cj is not None: | |
try: cj.load(ignore_discard=True) | |
except: pass | |
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj)) | |
urllib2.install_opener(opener) | |
request = urllib2.Request(url) | |
for key in headers: request.add_header(key, headers[key]) | |
try: | |
response = urllib2.urlopen(request) | |
html = response.read() | |
except urllib2.HTTPError as e: | |
html = e.read() | |
tries = 0 | |
while tries < MAX_TRIES: | |
solver_pattern = 'var (?:s,t,o,p,b,r,e,a,k,i,n,g|t,r,a),f,\s*([^=]+)={"([^"]+)":([^}]+)};.+challenge-form\'\);.*?\n.*?;(.*?);a\.value' | |
vc_pattern = 'input type="hidden" name="jschl_vc" value="([^"]+)' | |
pass_pattern = 'input type="hidden" name="pass" value="([^"]+)' | |
init_match = re.search(solver_pattern, html, re.DOTALL) | |
vc_match = re.search(vc_pattern, html) | |
pass_match = re.search(pass_pattern, html) | |
if not init_match or not vc_match or not pass_match: | |
log_utils.log("Couldn't find attribute: init: |%s| vc: |%s| pass: |%s| No cloudflare check?" % (init_match, vc_match, pass_match), log_utils.LOGWARNING) | |
return False | |
init_dict, init_var, init_equation, equations = init_match.groups() | |
vc = vc_match.group(1) | |
password = pass_match.group(1) | |
# log_utils.log("VC is: %s" % (vc), xbmc.LOGDEBUG) | |
varname = (init_dict, init_var) | |
result = int(solve_equation(init_equation.rstrip())) | |
log_utils.log('Initial value: |%s| Result: |%s|' % (init_equation, result), log_utils.LOGDEBUG) | |
for equation in equations.split(';'): | |
equation = equation.rstrip() | |
if equation[:len('.'.join(varname))] != '.'.join(varname): | |
log_utils.log('Equation does not start with varname |%s|' % (equation), log_utils.LOGDEBUG) | |
else: | |
equation = equation[len('.'.join(varname)):] | |
expression = equation[2:] | |
operator = equation[0] | |
if operator not in ['+', '-', '*', '/']: | |
log_utils.log('Unknown operator: |%s|' % (equation), log_utils.LOGWARNING) | |
continue | |
result = int(str(eval(str(result) + operator + str(solve_equation(expression))))) | |
log_utils.log('intermediate: %s = %s' % (equation, result), log_utils.LOGDEBUG) | |
scheme = urlparse.urlparse(url).scheme | |
domain = urlparse.urlparse(url).hostname | |
result += len(domain) | |
log_utils.log('Final Result: |%s|' % (result), log_utils.LOGDEBUG) | |
if wait: | |
log_utils.log('Sleeping for 5 Seconds', log_utils.LOGDEBUG) | |
xbmc.sleep(5000) | |
url = '%s://%s/cdn-cgi/l/chk_jschl?jschl_vc=%s&jschl_answer=%s&pass=%s' % (scheme, domain, vc, result, urllib.quote(password)) | |
log_utils.log('url: %s' % (url), log_utils.LOGDEBUG) | |
request = urllib2.Request(url) | |
for key in headers: request.add_header(key, headers[key]) | |
try: | |
opener = urllib2.build_opener(NoRedirection) | |
urllib2.install_opener(opener) | |
response = urllib2.urlopen(request) | |
while response.getcode() in [301, 302, 303, 307]: | |
if cj is not None: | |
cj.extract_cookies(response, request) | |
request = urllib2.Request(response.info().getheader('location')) | |
for key in headers: request.add_header(key, headers[key]) | |
if cj is not None: | |
cj.add_cookie_header(request) | |
response = urllib2.urlopen(request) | |
final = response.read() | |
if 'cf-browser-verification' in final: | |
log_utils.log('CF Failure: html: %s url: %s' % (html, url), log_utils.LOGWARNING) | |
tries += 1 | |
html = final | |
else: | |
break | |
except urllib2.HTTPError as e: | |
log_utils.log('CloudFlare Error: %s on url: %s' % (e.code, url), log_utils.LOGWARNING) | |
return False | |
if cj is not None: | |
cj.save() | |
return final |
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