Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/requests_toolbelt/auth/guess.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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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 from . import _digest_auth_compat as auth_compat, http_proxy_digest
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7
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8
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9 class GuessAuth(auth.AuthBase):
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10 """Guesses the auth type by the WWW-Authentication header."""
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11 def __init__(self, username, password):
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12 self.username = username
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13 self.password = password
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14 self.auth = None
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15 self.pos = None
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16
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17 def _handle_basic_auth_401(self, r, kwargs):
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18 if self.pos is not None:
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19 r.request.body.seek(self.pos)
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20
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21 # Consume content and release the original connection
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22 # to allow our new request to reuse the same one.
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23 r.content
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24 r.raw.release_conn()
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25 prep = r.request.copy()
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26 if not hasattr(prep, '_cookies'):
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27 prep._cookies = cookies.RequestsCookieJar()
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28 cookies.extract_cookies_to_jar(prep._cookies, r.request, r.raw)
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29 prep.prepare_cookies(prep._cookies)
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30
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31 self.auth = auth.HTTPBasicAuth(self.username, self.password)
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32 prep = self.auth(prep)
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33 _r = r.connection.send(prep, **kwargs)
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34 _r.history.append(r)
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35 _r.request = prep
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36
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37 return _r
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38
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39 def _handle_digest_auth_401(self, r, kwargs):
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40 self.auth = auth_compat.HTTPDigestAuth(self.username, self.password)
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41 try:
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42 self.auth.init_per_thread_state()
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43 except AttributeError:
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44 # If we're not on requests 2.8.0+ this method does not exist and
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45 # is not relevant.
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46 pass
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47
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48 # Check that the attr exists because much older versions of requests
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49 # set this attribute lazily. For example:
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50 # https://github.com/kennethreitz/requests/blob/33735480f77891754304e7f13e3cdf83aaaa76aa/requests/auth.py#L59
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51 if (hasattr(self.auth, 'num_401_calls') and
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52 self.auth.num_401_calls is None):
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53 self.auth.num_401_calls = 1
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54 # Digest auth would resend the request by itself. We can take a
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55 # shortcut here.
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56 return self.auth.handle_401(r, **kwargs)
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57
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58 def handle_401(self, r, **kwargs):
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59 """Resends a request with auth headers, if needed."""
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60
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61 www_authenticate = r.headers.get('www-authenticate', '').lower()
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62
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63 if 'basic' in www_authenticate:
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64 return self._handle_basic_auth_401(r, kwargs)
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65
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66 if 'digest' in www_authenticate:
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67 return self._handle_digest_auth_401(r, kwargs)
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68
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69 def __call__(self, request):
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70 if self.auth is not None:
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71 return self.auth(request)
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72
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73 try:
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74 self.pos = request.body.tell()
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75 except AttributeError:
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76 pass
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77
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78 request.register_hook('response', self.handle_401)
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79 return request
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80
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81
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82 class GuessProxyAuth(GuessAuth):
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83 """
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84 Guesses the auth type by WWW-Authentication and Proxy-Authentication
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85 headers
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86 """
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87 def __init__(self, username=None, password=None,
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88 proxy_username=None, proxy_password=None):
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89 super(GuessProxyAuth, self).__init__(username, password)
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90 self.proxy_username = proxy_username
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91 self.proxy_password = proxy_password
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92 self.proxy_auth = None
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93
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94 def _handle_basic_auth_407(self, r, kwargs):
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95 if self.pos is not None:
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96 r.request.body.seek(self.pos)
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97
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98 r.content
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99 r.raw.release_conn()
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100 prep = r.request.copy()
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101 if not hasattr(prep, '_cookies'):
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102 prep._cookies = cookies.RequestsCookieJar()
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103 cookies.extract_cookies_to_jar(prep._cookies, r.request, r.raw)
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104 prep.prepare_cookies(prep._cookies)
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105
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106 self.proxy_auth = auth.HTTPProxyAuth(self.proxy_username,
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107 self.proxy_password)
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108 prep = self.proxy_auth(prep)
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109 _r = r.connection.send(prep, **kwargs)
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110 _r.history.append(r)
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111 _r.request = prep
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112
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113 return _r
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114
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115 def _handle_digest_auth_407(self, r, kwargs):
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116 self.proxy_auth = http_proxy_digest.HTTPProxyDigestAuth(
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117 username=self.proxy_username,
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118 password=self.proxy_password)
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119
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120 try:
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121 self.auth.init_per_thread_state()
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122 except AttributeError:
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123 pass
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124
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125 return self.proxy_auth.handle_407(r, **kwargs)
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126
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127 def handle_407(self, r, **kwargs):
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128 proxy_authenticate = r.headers.get('Proxy-Authenticate', '').lower()
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129
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130 if 'basic' in proxy_authenticate:
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guerler
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131 return self._handle_basic_auth_407(r, kwargs)
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132
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133 if 'digest' in proxy_authenticate:
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guerler
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134 return self._handle_digest_auth_407(r, kwargs)
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guerler
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135
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136 def __call__(self, request):
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guerler
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137 if self.proxy_auth is not None:
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guerler
parents:
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138 request = self.proxy_auth(request)
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139
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guerler
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140 try:
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141 self.pos = request.body.tell()
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guerler
parents:
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142 except AttributeError:
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guerler
parents:
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143 pass
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144
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145 request.register_hook('response', self.handle_407)
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guerler
parents:
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146 return super(GuessProxyAuth, self).__call__(request)