Mercurial > repos > shellac > guppy_basecaller
annotate env/lib/python3.7/site-packages/requests_toolbelt/auth/guess.py @ 4:79f47841a781 draft
"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
| author | shellac | 
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| date | Thu, 14 May 2020 16:47:39 -0400 | 
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changeset | 1 # -*- coding: utf-8 -*- | 
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changeset | 2 """The module containing the code for GuessAuth.""" | 
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changeset | 3 from requests import auth | 
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changeset | 4 from requests import cookies | 
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changeset | 5 | 
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changeset | 6 from . import _digest_auth_compat as auth_compat, http_proxy_digest | 
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changeset | 7 | 
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changeset | 8 | 
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changeset | 9 class GuessAuth(auth.AuthBase): | 
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changeset | 10 """Guesses the auth type by the WWW-Authentication header.""" | 
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changeset | 11 def __init__(self, username, password): | 
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changeset | 12 self.username = username | 
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changeset | 13 self.password = password | 
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changeset | 14 self.auth = None | 
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changeset | 15 self.pos = None | 
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changeset | 16 | 
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changeset | 17 def _handle_basic_auth_401(self, r, kwargs): | 
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changeset | 18 if self.pos is not None: | 
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changeset | 19 r.request.body.seek(self.pos) | 
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changeset | 20 | 
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changeset | 21 # Consume content and release the original connection | 
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changeset | 22 # to allow our new request to reuse the same one. | 
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changeset | 23 r.content | 
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changeset | 24 r.raw.release_conn() | 
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changeset | 25 prep = r.request.copy() | 
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changeset | 26 if not hasattr(prep, '_cookies'): | 
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changeset | 27 prep._cookies = cookies.RequestsCookieJar() | 
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changeset | 28 cookies.extract_cookies_to_jar(prep._cookies, r.request, r.raw) | 
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changeset | 29 prep.prepare_cookies(prep._cookies) | 
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changeset | 30 | 
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changeset | 31 self.auth = auth.HTTPBasicAuth(self.username, self.password) | 
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changeset | 32 prep = self.auth(prep) | 
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changeset | 33 _r = r.connection.send(prep, **kwargs) | 
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changeset | 34 _r.history.append(r) | 
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changeset | 35 _r.request = prep | 
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changeset | 36 | 
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changeset | 37 return _r | 
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changeset | 38 | 
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changeset | 39 def _handle_digest_auth_401(self, r, kwargs): | 
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changeset | 40 self.auth = auth_compat.HTTPDigestAuth(self.username, self.password) | 
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changeset | 41 try: | 
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changeset | 42 self.auth.init_per_thread_state() | 
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changeset | 43 except AttributeError: | 
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changeset | 44 # If we're not on requests 2.8.0+ this method does not exist and | 
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changeset | 45 # is not relevant. | 
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changeset | 46 pass | 
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changeset | 47 | 
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changeset | 48 # Check that the attr exists because much older versions of requests | 
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changeset | 49 # set this attribute lazily. For example: | 
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changeset | 50 # https://github.com/kennethreitz/requests/blob/33735480f77891754304e7f13e3cdf83aaaa76aa/requests/auth.py#L59 | 
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changeset | 51 if (hasattr(self.auth, 'num_401_calls') and | 
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changeset | 52 self.auth.num_401_calls is None): | 
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changeset | 53 self.auth.num_401_calls = 1 | 
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changeset | 54 # Digest auth would resend the request by itself. We can take a | 
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changeset | 55 # shortcut here. | 
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changeset | 56 return self.auth.handle_401(r, **kwargs) | 
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changeset | 57 | 
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changeset | 58 def handle_401(self, r, **kwargs): | 
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changeset | 59 """Resends a request with auth headers, if needed.""" | 
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changeset | 60 | 
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changeset | 61 www_authenticate = r.headers.get('www-authenticate', '').lower() | 
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changeset | 62 | 
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changeset | 63 if 'basic' in www_authenticate: | 
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changeset | 64 return self._handle_basic_auth_401(r, kwargs) | 
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changeset | 65 | 
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changeset | 66 if 'digest' in www_authenticate: | 
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changeset | 67 return self._handle_digest_auth_401(r, kwargs) | 
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changeset | 68 | 
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changeset | 69 def __call__(self, request): | 
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changeset | 70 if self.auth is not None: | 
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changeset | 71 return self.auth(request) | 
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changeset | 72 | 
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changeset | 73 try: | 
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changeset | 74 self.pos = request.body.tell() | 
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changeset | 75 except AttributeError: | 
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changeset | 76 pass | 
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changeset | 77 | 
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changeset | 78 request.register_hook('response', self.handle_401) | 
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changeset | 79 return request | 
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changeset | 80 | 
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changeset | 81 | 
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changeset | 82 class GuessProxyAuth(GuessAuth): | 
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changeset | 83 """ | 
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changeset | 84 Guesses the auth type by WWW-Authentication and Proxy-Authentication | 
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changeset | 85 headers | 
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changeset | 86 """ | 
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changeset | 87 def __init__(self, username=None, password=None, | 
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changeset | 88 proxy_username=None, proxy_password=None): | 
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changeset | 89 super(GuessProxyAuth, self).__init__(username, password) | 
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changeset | 90 self.proxy_username = proxy_username | 
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changeset | 91 self.proxy_password = proxy_password | 
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changeset | 92 self.proxy_auth = None | 
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changeset | 93 | 
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changeset | 94 def _handle_basic_auth_407(self, r, kwargs): | 
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changeset | 95 if self.pos is not None: | 
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changeset | 96 r.request.body.seek(self.pos) | 
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changeset | 97 | 
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changeset | 98 r.content | 
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changeset | 99 r.raw.release_conn() | 
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changeset | 100 prep = r.request.copy() | 
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changeset | 101 if not hasattr(prep, '_cookies'): | 
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changeset | 102 prep._cookies = cookies.RequestsCookieJar() | 
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changeset | 103 cookies.extract_cookies_to_jar(prep._cookies, r.request, r.raw) | 
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changeset | 104 prep.prepare_cookies(prep._cookies) | 
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changeset | 105 | 
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changeset | 106 self.proxy_auth = auth.HTTPProxyAuth(self.proxy_username, | 
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changeset | 107 self.proxy_password) | 
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changeset | 108 prep = self.proxy_auth(prep) | 
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changeset | 109 _r = r.connection.send(prep, **kwargs) | 
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changeset | 110 _r.history.append(r) | 
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changeset | 111 _r.request = prep | 
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changeset | 112 | 
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changeset | 113 return _r | 
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changeset | 114 | 
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changeset | 115 def _handle_digest_auth_407(self, r, kwargs): | 
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changeset | 116 self.proxy_auth = http_proxy_digest.HTTPProxyDigestAuth( | 
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changeset | 117 username=self.proxy_username, | 
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changeset | 118 password=self.proxy_password) | 
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changeset | 119 | 
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changeset | 120 try: | 
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changeset | 121 self.auth.init_per_thread_state() | 
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changeset | 122 except AttributeError: | 
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changeset | 123 pass | 
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changeset | 124 | 
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changeset | 125 return self.proxy_auth.handle_407(r, **kwargs) | 
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changeset | 126 | 
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changeset | 127 def handle_407(self, r, **kwargs): | 
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changeset | 128 proxy_authenticate = r.headers.get('Proxy-Authenticate', '').lower() | 
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changeset | 129 | 
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changeset | 130 if 'basic' in proxy_authenticate: | 
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changeset | 131 return self._handle_basic_auth_407(r, kwargs) | 
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changeset | 132 | 
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changeset | 133 if 'digest' in proxy_authenticate: | 
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changeset | 134 return self._handle_digest_auth_407(r, kwargs) | 
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changeset | 135 | 
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changeset | 136 def __call__(self, request): | 
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changeset | 137 if self.proxy_auth is not None: | 
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changeset | 138 request = self.proxy_auth(request) | 
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changeset | 139 | 
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changeset | 140 try: | 
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changeset | 141 self.pos = request.body.tell() | 
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changeset | 142 except AttributeError: | 
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changeset | 143 pass | 
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changeset | 144 | 
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changeset | 145 request.register_hook('response', self.handle_407) | 
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changeset | 146 return super(GuessProxyAuth, self).__call__(request) | 
