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annotate venv/lib/python2.7/site-packages/requests_toolbelt/auth/guess.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 # -*- coding: utf-8 -*-
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2 """The module containing the code for GuessAuth."""
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3 from requests import auth
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4 from requests import cookies
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5
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6
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7 class GuessAuth(auth.AuthBase):
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8 """Guesses the auth type by the WWW-Authentication header."""
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9 def __init__(self, username, password):
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10 self.username = username
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11 self.password = password
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12 self.auth = None
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13 self.pos = None
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14
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15 def handle_401(self, r, **kwargs):
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16 """Resends a request with auth headers, if needed."""
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17
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18 www_authenticate = r.headers.get('www-authenticate', '').lower()
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19
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20 if 'basic' in www_authenticate:
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21 if self.pos is not None:
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22 r.request.body.seek(self.pos)
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23
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24 # Consume content and release the original connection
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25 # to allow our new request to reuse the same one.
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26 r.content
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27 r.raw.release_conn()
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28 prep = r.request.copy()
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29 if not hasattr(prep, '_cookies'):
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30 prep._cookies = cookies.RequestsCookieJar()
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31 cookies.extract_cookies_to_jar(prep._cookies, r.request, r.raw)
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32 prep.prepare_cookies(prep._cookies)
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33
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34 self.auth = auth.HTTPBasicAuth(self.username, self.password)
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35 prep = self.auth(prep)
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36 _r = r.connection.send(prep, **kwargs)
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37 _r.history.append(r)
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38 _r.request = prep
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39
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40 return _r
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41
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42 if 'digest' in www_authenticate:
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43 self.auth = auth.HTTPDigestAuth(self.username, self.password)
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44 # Digest auth would resend the request by itself. We can take a
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45 # shortcut here.
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46 return self.auth.handle_401(r, **kwargs)
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47
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48 def __call__(self, request):
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49 if self.auth is not None:
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50 return self.auth(request)
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51
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52 try:
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53 self.pos = request.body.tell()
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54 except AttributeError:
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55 pass
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56
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57 request.register_hook('response', self.handle_401)
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58 return request