465 lines
18 KiB
Python
Executable File
465 lines
18 KiB
Python
Executable File
## Modded version of cloudscrape 1.1.24
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## https://github.com/venomous/cloudscraper
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import logging
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import re
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import sys
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import ssl
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import requests
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from copy import deepcopy
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from time import sleep
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from collections import OrderedDict
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from requests.sessions import Session
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from requests.adapters import HTTPAdapter
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from requests.packages.urllib3.util.ssl_ import create_urllib3_context
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from .interpreters import JavaScriptInterpreter
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from .reCaptcha import reCaptcha
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from .user_agent import User_Agent
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try:
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from requests_toolbelt.utils import dump
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except ImportError:
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pass
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try:
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import brotli
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except ImportError:
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pass
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try:
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from urlparse import urlparse
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except ImportError:
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from urllib.parse import urlparse
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##########################################################################################################################################################
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__version__ = '1.1.24'
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BUG_REPORT = 'Cloudflare may have changed their technique, or there may be a bug in the script.'
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##########################################################################################################################################################
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# class CipherSuiteAdapter(HTTPAdapter):
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#
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# def __init__(self, cipherSuite=None, **kwargs):
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# self.cipherSuite = cipherSuite
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#
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# self.ssl_context = create_urllib3_context(
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# ssl_version=ssl.PROTOCOL_TLS,
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# ciphers=self.cipherSuite
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# )
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#
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# super(CipherSuiteAdapter, self).__init__(**kwargs)
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class CipherSuiteAdapter(HTTPAdapter):
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def __init__(self, cipherSuite=None, **kwargs):
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self.cipherSuite = cipherSuite
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if hasattr(ssl, 'PROTOCOL_TLS'):
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self.ssl_context = create_urllib3_context(
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ssl_version=getattr(ssl, 'PROTOCOL_TLSv1_3', ssl.PROTOCOL_TLSv1_2),
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ciphers=self.cipherSuite
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)
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else:
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self.ssl_context = create_urllib3_context(ssl_version=ssl.PROTOCOL_TLSv1)
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super(CipherSuiteAdapter, self).__init__(**kwargs)
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##########################################################################################################################################################
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def init_poolmanager(self, *args, **kwargs):
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kwargs['ssl_context'] = self.ssl_context
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return super(CipherSuiteAdapter, self).init_poolmanager(*args, **kwargs)
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##########################################################################################################################################################
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def proxy_manager_for(self, *args, **kwargs):
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kwargs['ssl_context'] = self.ssl_context
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return super(CipherSuiteAdapter, self).proxy_manager_for(*args, **kwargs)
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##########################################################################################################################################################
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class CloudScraper(Session):
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def __init__(self, *args, **kwargs):
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self.allow_brotli = kwargs.pop('allow_brotli', True if 'brotli' in sys.modules.keys() else False)
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self.debug = kwargs.pop('debug', False)
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self.delay = kwargs.pop('delay', None)
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self.interpreter = kwargs.pop('interpreter', 'js2py')
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self.recaptcha = kwargs.pop('recaptcha', {})
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self.cipherSuite = None
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super(CloudScraper, self).__init__(*args, **kwargs)
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if 'requests' in self.headers['User-Agent']:
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# Set a random User-Agent if no custom User-Agent has been set
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self.headers = User_Agent(allow_brotli=self.allow_brotli).headers
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self.mount('https://', CipherSuiteAdapter(self.loadCipherSuite()))
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##########################################################################################################################################################
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@staticmethod
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def debugRequest(req):
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try:
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print(dump.dump_all(req).decode('utf-8'))
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except: # noqa
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pass
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##########################################################################################################################################################
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def loadCipherSuite(self):
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if self.cipherSuite:
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return self.cipherSuite
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self.cipherSuite = ''
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if hasattr(ssl, 'PROTOCOL_TLS'):
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ciphers = [
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'TLS13-AES-128-GCM-SHA256',
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'TLS13-AES-256-GCM-SHA384',
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'TLS13-CHACHA20-POLY1305-SHA256',
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'ECDHE-ECDSA-CHACHA20-POLY1305',
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'ECDHE-ECDSA-AES128-GCM-SHA256',
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'ECDHE-ECDSA-AES128-SHA',
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'ECDHE-ECDSA-AES128-SHA256',
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'ECDHE-ECDSA-AES256-GCM-SHA384',
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'ECDHE-ECDSA-AES256-SHA',
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'ECDHE-ECDSA-AES256-SHA384',
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# Slip in some additional intermediate compatibility ciphers, This should help out users for non Cloudflare based sites.
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'ECDHE-RSA-AES128-SHA256',
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'ECDHE-RSA-AES256-SHA384',
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'ECDHE-RSA-AES256-GCM-SHA384',
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'DHE-RSA-AES128-GCM-SHA256',
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'DHE-RSA-AES256-GCM-SHA384'
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]
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ctx = ssl.SSLContext(ssl.PROTOCOL_TLS)
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for cipher in ciphers:
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try:
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ctx.set_ciphers(cipher)
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self.cipherSuite = '{}:{}'.format(self.cipherSuite, cipher).rstrip(':').lstrip(':')
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except ssl.SSLError:
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pass
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return self.cipherSuite
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##########################################################################################################################################################
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def request(self, method, url, *args, **kwargs):
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ourSuper = super(CloudScraper, self)
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resp = ourSuper.request(method, url, *args, **kwargs)
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if requests.packages.urllib3.__version__ < '1.25.1' and resp.headers.get('Content-Encoding') == 'br':
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if self.allow_brotli and resp._content:
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resp._content = brotli.decompress(resp.content)
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else:
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logging.warning('Brotli content detected, But option is disabled, we will not continue.')
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return resp
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# Debug request
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if self.debug:
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self.debugRequest(resp)
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# Check if Cloudflare anti-bot is on
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if self.isChallengeRequest(resp):
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if resp.request.method != 'GET':
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# Work around if the initial request is not a GET,
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# Supersede with a GET then re-request the original METHOD.
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self.request('GET', resp.url)
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resp = ourSuper.request(method, url, *args, **kwargs)
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else:
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# Solve Challenge
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resp = self.sendChallengeResponse(resp, **kwargs)
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return resp
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##########################################################################################################################################################
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# ------------------------------------------------------------------------------- #
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# check if the response contains a valid Cloudflare reCaptcha challenge
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# ------------------------------------------------------------------------------- #
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@staticmethod
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def is_reCaptcha_Challenge(resp):
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try:
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return (
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resp.headers.get('Server', '').startswith('cloudflare')
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and resp.status_code == 403
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and re.search(
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r'action="/.*?__cf_chl_captcha_tk__=\S+".*?data\-sitekey=.*?',
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resp.text,
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re.M | re.DOTALL
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)
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)
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except AttributeError:
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pass
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return False
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@staticmethod
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def isChallengeRequest(resp):
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if resp.headers.get('Server', '').startswith('cloudflare'):
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return (
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resp.status_code in [403, 429, 503]
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and (
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all(s in resp.content for s in [b'jschl_vc', b'jschl_answer'])
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or
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all(s in resp.content for s in [b'why_captcha', b'/cdn-cgi/l/chk_captcha'])
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)
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)
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return False
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# ------------------------------------------------------------------------------- #
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# Try to solve cloudflare javascript challenge.
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# ------------------------------------------------------------------------------- #
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@staticmethod
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def IUAM_Challenge_Response(body, domain, interpreter):
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try:
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challengeUUID = re.search(
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r'__cf_chl_jschl_tk__=(?P<challengeUUID>\S+)"',
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body, re.M | re.DOTALL
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).groupdict().get('challengeUUID')
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params = OrderedDict(re.findall(r'name="(r|jschl_vc|pass)"\svalue="(.*?)"', body))
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except AttributeError:
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sys.tracebacklimit = 0
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raise RuntimeError("Cloudflare IUAM detected, unfortunately we can't extract the parameters correctly.")
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try:
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params['jschl_answer'] = JavaScriptInterpreter.dynamicImport(
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interpreter
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).solveChallenge(body, domain)
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except Exception as e:
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raise RuntimeError(
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'Unable to parse Cloudflare anti-bots page: {}'.format(
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getattr(e, 'message', e)
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)
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)
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return {
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'url': 'https://{}/'.format(domain),
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'params': {'__cf_chl_jschl_tk__': challengeUUID},
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'data': params
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}
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@staticmethod
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def reCaptcha_Challenge_Response(provider, provider_params, body, url):
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try:
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params = re.search(
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r'(name="r"\svalue="(?P<r>\S+)"|).*?__cf_chl_captcha_tk__=(?P<challengeUUID>\S+)".*?'
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r'data-ray="(?P<data_ray>\S+)".*?data-sitekey="(?P<site_key>\S+)"',
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body, re.M | re.DOTALL
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).groupdict()
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except (AttributeError):
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sys.tracebacklimit = 0
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raise RuntimeError(
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"Cloudflare reCaptcha detected, unfortunately we can't extract the parameters correctly."
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)
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return {
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'url': url,
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'params': {'__cf_chl_captcha_tk__': params.get('challengeUUID')},
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'data': OrderedDict([
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('r', ''),
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('id', params.get('data_ray')),
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(
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'g-recaptcha-response',
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reCaptcha.dynamicImport(
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provider.lower()
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).solveCaptcha(url, params.get('site_key'), provider_params)
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)
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])
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}
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##########################################################################################################################################################
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def sendChallengeResponse(self, resp, **original_kwargs):
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if self.is_reCaptcha_Challenge(resp):
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# ------------------------------------------------------------------------------- #
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# double down on the request as some websites are only checking
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# if cfuid is populated before issuing reCaptcha.
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# ------------------------------------------------------------------------------- #
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resp = self.decodeBrotli(
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super(CloudScraper, self).request(resp.request.method, resp.url, **original_kwargs)
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)
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if not self.is_reCaptcha_Challenge(resp):
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return resp
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# ------------------------------------------------------------------------------- #
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# if no reCaptcha provider raise a runtime error.
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# ------------------------------------------------------------------------------- #
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if not self.recaptcha or not isinstance(self.recaptcha, dict) or not self.recaptcha.get('provider'):
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sys.tracebacklimit = 0
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raise RuntimeError(
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"Cloudflare reCaptcha detected, unfortunately you haven't loaded an anti reCaptcha provider "
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"correctly via the 'recaptcha' parameter."
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)
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# ------------------------------------------------------------------------------- #
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# if provider is return_response, return the response without doing anything.
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# ------------------------------------------------------------------------------- #
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if self.recaptcha.get('provider') == 'return_response':
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return resp
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self.recaptcha['proxies'] = self.proxies
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submit_url = self.reCaptcha_Challenge_Response(
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self.recaptcha.get('provider'),
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self.recaptcha,
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resp.text,
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resp.url
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)
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else:
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# ------------------------------------------------------------------------------- #
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# Cloudflare requires a delay before solving the challenge
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# ------------------------------------------------------------------------------- #
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if not self.delay:
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try:
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delay = float(
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re.search(
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r'submit\(\);\r?\n\s*},\s*([0-9]+)',
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resp.text
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).group(1)
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) / float(1000)
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if isinstance(delay, (int, float)):
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self.delay = delay
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except (AttributeError, ValueError):
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sys.tracebacklimit = 0
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raise RuntimeError("Cloudflare IUAM possibility malformed, issue extracing delay value.")
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sleep(self.delay)
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# ------------------------------------------------------------------------------- #
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submit_url = self.IUAM_Challenge_Response(
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resp.text,
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urlparse(resp.url).netloc,
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self.interpreter
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)
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# ------------------------------------------------------------------------------- #
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# Send the Challenge Response back to Cloudflare
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# ------------------------------------------------------------------------------- #
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if submit_url:
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def updateAttr(obj, name, newValue):
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try:
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obj[name].update(newValue)
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return obj[name]
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except (AttributeError, KeyError):
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obj[name] = {}
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obj[name].update(newValue)
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return obj[name]
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cloudflare_kwargs = deepcopy(original_kwargs)
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cloudflare_kwargs['allow_redirects'] = False
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cloudflare_kwargs['params'] = updateAttr(cloudflare_kwargs, 'params', submit_url['params'])
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cloudflare_kwargs['data'] = updateAttr(cloudflare_kwargs, 'data', submit_url['data'])
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cloudflare_kwargs['headers'] = updateAttr(cloudflare_kwargs, 'headers', {'Referer': resp.url})
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self.request(
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'POST',
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submit_url['url'],
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**cloudflare_kwargs
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)
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# ------------------------------------------------------------------------------- #
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# Request the original query request and return it
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# ------------------------------------------------------------------------------- #
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return self.request(resp.request.method, resp.url, **original_kwargs)
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# ------------------------------------------------------------------------------- #
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# Request the original query request and return it
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# ------------------------------------------------------------------------------- #
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# return self.request(resp.request.method, resp.url, **kwargs)
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# ------------------------------------------------------------------------------- #
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##########################################################################################################################################################
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@classmethod
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def create_scraper(cls, sess=None, **kwargs):
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"""
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Convenience function for creating a ready-to-go CloudScraper object.
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"""
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scraper = cls(**kwargs)
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if sess:
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attrs = ['auth', 'cert', 'cookies', 'headers', 'hooks', 'params', 'proxies', 'data']
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for attr in attrs:
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val = getattr(sess, attr, None)
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if val:
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setattr(scraper, attr, val)
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return scraper
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##########################################################################################################################################################
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# Functions for integrating cloudscraper with other applications and scripts
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@classmethod
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def get_tokens(cls, url, **kwargs):
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scraper = cls.create_scraper(
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debug=kwargs.pop('debug', False),
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delay=kwargs.pop('delay', None),
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interpreter=kwargs.pop('interpreter', 'js2py'),
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allow_brotli=kwargs.pop('allow_brotli', True),
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recaptcha=kwargs.pop('recaptcha', {})
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)
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try:
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resp = scraper.get(url, **kwargs)
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resp.raise_for_status()
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except Exception:
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logging.error('"{}" returned an error. Could not collect tokens.'.format(url))
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raise
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domain = urlparse(resp.url).netloc
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# noinspection PyUnusedLocal
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cookie_domain = None
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for d in scraper.cookies.list_domains():
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if d.startswith('.') and d in ('.{}'.format(domain)):
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cookie_domain = d
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break
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else:
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raise ValueError('Unable to find Cloudflare cookies. Does the site actually have Cloudflare IUAM ("I\'m Under Attack Mode") enabled?')
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return (
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{
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'__cfduid': scraper.cookies.get('__cfduid', '', domain=cookie_domain),
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'cf_clearance': scraper.cookies.get('cf_clearance', '', domain=cookie_domain)
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},
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scraper.headers['User-Agent']
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)
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##########################################################################################################################################################
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@classmethod
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def get_cookie_string(cls, url, **kwargs):
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"""
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Convenience function for building a Cookie HTTP header value.
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"""
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tokens, user_agent = cls.get_tokens(url, **kwargs)
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return '; '.join('='.join(pair) for pair in tokens.items()), user_agent
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##########################################################################################################################################################
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create_scraper = CloudScraper.create_scraper
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get_tokens = CloudScraper.get_tokens
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get_cookie_string = CloudScraper.get_cookie_string
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