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Reuse guest tokens across scrapes

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Cf. #326
This commit is contained in:
JustAnotherArchivist
2021-12-11 23:18:42 +00:00
parent bcaa477b3d
commit 72abff9e5c
1 changed files with 46 additions and 18 deletions
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64
snscrape/modules/twitter.py
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@@ -17,6 +17,7 @@ import urllib.parse
logger = logging.getLogger(__name__)
_API_AUTHORIZATION_HEADER = 'Bearer AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs=1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA'
_globalGuestTokenManager = None
@dataclasses.dataclass
@@ -169,11 +170,39 @@ class ScrollDirection(enum.Enum):
BOTH = enum.auto()
class GuestTokenManager:
def __init__(self):
self._token = None
self._setTime = 0.0
@property
def token(self):
return self._token
@token.setter
def token(self, token):
self._token = token
self._setTime = time.time()
@property
def setTime(self):
return self._setTime
def reset(self):
self._token = None
self._setTime = 0.0
class TwitterAPIScraper(snscrape.base.Scraper):
def __init__(self, baseUrl, **kwargs):
def __init__(self, baseUrl, guestTokenManager = None, **kwargs):
super().__init__(**kwargs)
self._baseUrl = baseUrl
self._guestToken = None
if guestTokenManager is None:
global _globalGuestTokenManager
if _globalGuestTokenManager is None:
_globalGuestTokenManager = GuestTokenManager()
guestTokenManager = _globalGuestTokenManager
self._guestTokenManager = guestTokenManager
self._userAgent = f'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.{random.randint(0, 9999)} Safari/537.{random.randint(0, 99)}'
self._apiHeaders = {
'User-Agent': self._userAgent,
@@ -183,24 +212,23 @@ class TwitterAPIScraper(snscrape.base.Scraper):
}
def _ensure_guest_token(self, url = None):
if self._guestToken is not None:
return
logger.info('Retrieving guest token')
r = self._get(self._baseUrl if url is None else url, headers = {'User-Agent': self._userAgent})
if (match := re.search(r'document\.cookie = decodeURIComponent\("gt=(\d+); Max-Age=10800; Domain=\.twitter\.com; Path=/; Secure"\);', r.text)):
logger.debug('Found guest token in HTML')
self._guestToken = match.group(1)
if 'gt' in r.cookies:
logger.debug('Found guest token in cookies')
self._guestToken = r.cookies['gt']
if self._guestToken:
self._session.cookies.set('gt', self._guestToken, domain = '.twitter.com', path = '/', secure = True, expires = time.time() + 10800)
self._apiHeaders['x-guest-token'] = self._guestToken
return
raise snscrape.base.ScraperException('Unable to find guest token')
if self._guestTokenManager.token is None:
logger.info('Retrieving guest token')
r = self._get(self._baseUrl if url is None else url, headers = {'User-Agent': self._userAgent})
if (match := re.search(r'document\.cookie = decodeURIComponent\("gt=(\d+); Max-Age=10800; Domain=\.twitter\.com; Path=/; Secure"\);', r.text)):
logger.debug('Found guest token in HTML')
self._guestTokenManager.token = match.group(1)
if 'gt' in r.cookies:
logger.debug('Found guest token in cookies')
self._guestTokenManager.token = r.cookies['gt']
if not self._guestTokenManager.token:
raise snscrape.base.ScraperException('Unable to find guest token')
logger.debug(f'Using guest token {self._guestTokenManager.token}')
self._session.cookies.set('gt', self._guestTokenManager.token, domain = '.twitter.com', path = '/', secure = True, expires = self._guestTokenManager.setTime + 10800)
self._apiHeaders['x-guest-token'] = self._guestTokenManager.token
def _unset_guest_token(self):
self._guestToken = None
self._guestTokenManager.reset()
del self._session.cookies['gt']
del self._apiHeaders['x-guest-token']