root / snf-common / synnefo / lib / astakos.py @ 784dcbdb
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1 | 8acb1f97 | Kostas Papadimitriou | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | d65af928 | Kostas Papadimitriou | #
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3 | 8acb1f97 | Kostas Papadimitriou | # Redistribution and use in source and binary forms, with or
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4 | 8acb1f97 | Kostas Papadimitriou | # without modification, are permitted provided that the following
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5 | 8acb1f97 | Kostas Papadimitriou | # conditions are met:
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6 | d65af928 | Kostas Papadimitriou | #
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7 | 8acb1f97 | Kostas Papadimitriou | # 1. Redistributions of source code must retain the above
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8 | 8acb1f97 | Kostas Papadimitriou | # copyright notice, this list of conditions and the following
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9 | 8acb1f97 | Kostas Papadimitriou | # disclaimer.
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10 | d65af928 | Kostas Papadimitriou | #
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11 | 8acb1f97 | Kostas Papadimitriou | # 2. Redistributions in binary form must reproduce the above
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12 | 8acb1f97 | Kostas Papadimitriou | # copyright notice, this list of conditions and the following
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13 | 8acb1f97 | Kostas Papadimitriou | # disclaimer in the documentation and/or other materials
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14 | 8acb1f97 | Kostas Papadimitriou | # provided with the distribution.
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15 | d65af928 | Kostas Papadimitriou | #
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16 | 8acb1f97 | Kostas Papadimitriou | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 8acb1f97 | Kostas Papadimitriou | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 8acb1f97 | Kostas Papadimitriou | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 8acb1f97 | Kostas Papadimitriou | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 8acb1f97 | Kostas Papadimitriou | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 8acb1f97 | Kostas Papadimitriou | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 8acb1f97 | Kostas Papadimitriou | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 8acb1f97 | Kostas Papadimitriou | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 8acb1f97 | Kostas Papadimitriou | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 8acb1f97 | Kostas Papadimitriou | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 8acb1f97 | Kostas Papadimitriou | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 8acb1f97 | Kostas Papadimitriou | # POSSIBILITY OF SUCH DAMAGE.
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28 | d65af928 | Kostas Papadimitriou | #
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29 | 8acb1f97 | Kostas Papadimitriou | # The views and conclusions contained in the software and
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30 | 8acb1f97 | Kostas Papadimitriou | # documentation are those of the authors and should not be
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31 | 8acb1f97 | Kostas Papadimitriou | # interpreted as representing official policies, either expressed
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32 | 8acb1f97 | Kostas Papadimitriou | # or implied, of GRNET S.A.
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33 | 8acb1f97 | Kostas Papadimitriou | |
34 | 83204389 | Kostas Papadimitriou | import logging |
35 | 83204389 | Kostas Papadimitriou | |
36 | 74d988b0 | Christos Stavrakakis | from urlparse import urlparse |
37 | 74d988b0 | Christos Stavrakakis | from urllib import unquote |
38 | 8acb1f97 | Kostas Papadimitriou | from django.utils import simplejson as json |
39 | 8acb1f97 | Kostas Papadimitriou | |
40 | 27cfa807 | Vangelis Koukis | from synnefo.lib.pool.http import get_http_connection |
41 | 27cfa807 | Vangelis Koukis | |
42 | 83204389 | Kostas Papadimitriou | logger = logging.getLogger(__name__) |
43 | 8acb1f97 | Kostas Papadimitriou | |
44 | 74d988b0 | Christos Stavrakakis | |
45 | c700f742 | Sofia Papagiannaki | def retry(howmany): |
46 | c700f742 | Sofia Papagiannaki | def execute(func): |
47 | c700f742 | Sofia Papagiannaki | def f(*args, **kwargs): |
48 | c700f742 | Sofia Papagiannaki | attempts = 0
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49 | cd5033bd | Sofia Papagiannaki | while True: |
50 | c700f742 | Sofia Papagiannaki | try:
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51 | c700f742 | Sofia Papagiannaki | return func(*args, **kwargs)
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52 | c700f742 | Sofia Papagiannaki | except Exception, e: |
53 | cd5033bd | Sofia Papagiannaki | is_last_attempt = attempts == howmany - 1
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54 | cd5033bd | Sofia Papagiannaki | if is_last_attempt:
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55 | cd5033bd | Sofia Papagiannaki | raise e
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56 | c700f742 | Sofia Papagiannaki | if e.args:
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57 | c700f742 | Sofia Papagiannaki | status = e.args[-1]
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58 | 050485bd | Sofia Papagiannaki | # In case of Unauthorized response
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59 | 050485bd | Sofia Papagiannaki | # or Not Found return directly
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60 | c700f742 | Sofia Papagiannaki | if status == 401 or status == 404: |
61 | c700f742 | Sofia Papagiannaki | raise e
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62 | c700f742 | Sofia Papagiannaki | attempts += 1
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63 | c700f742 | Sofia Papagiannaki | return f
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64 | c700f742 | Sofia Papagiannaki | return execute
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65 | c700f742 | Sofia Papagiannaki | |
66 | 74d988b0 | Christos Stavrakakis | |
67 | 890c2065 | Sofia Papagiannaki | def call(token, url, headers={}, body=None, method='GET'): |
68 | c700f742 | Sofia Papagiannaki | p = urlparse(url) |
69 | d65af928 | Kostas Papadimitriou | |
70 | 8acb1f97 | Kostas Papadimitriou | kwargs = {} |
71 | c700f742 | Sofia Papagiannaki | kwargs['headers'] = headers
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72 | 8acb1f97 | Kostas Papadimitriou | kwargs['headers']['X-Auth-Token'] = token |
73 | 890c2065 | Sofia Papagiannaki | if body:
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74 | 890c2065 | Sofia Papagiannaki | kwargs['body'] = body
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75 | 74d988b0 | Christos Stavrakakis | kwargs['headers'].setdefault('content-type', |
76 | 74d988b0 | Christos Stavrakakis | 'application/octet-stream')
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77 | 890c2065 | Sofia Papagiannaki | kwargs['headers'].setdefault('content-length', len(body) if body else 0) |
78 | 890c2065 | Sofia Papagiannaki | |
79 | 27cfa807 | Vangelis Koukis | conn = get_http_connection(p.netloc, p.scheme) |
80 | 27cfa807 | Vangelis Koukis | try:
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81 | 890c2065 | Sofia Papagiannaki | conn.request(method, p.path + '?' + p.query, **kwargs)
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82 | 27cfa807 | Vangelis Koukis | response = conn.getresponse() |
83 | 27cfa807 | Vangelis Koukis | headers = response.getheaders() |
84 | 74d988b0 | Christos Stavrakakis | headers = dict((unquote(h), unquote(v)) for h, v in headers) |
85 | 27cfa807 | Vangelis Koukis | length = response.getheader('content-length', None) |
86 | 27cfa807 | Vangelis Koukis | data = response.read(length) |
87 | 27cfa807 | Vangelis Koukis | status = int(response.status)
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88 | 27cfa807 | Vangelis Koukis | finally:
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89 | 27cfa807 | Vangelis Koukis | conn.close() |
90 | d65af928 | Kostas Papadimitriou | |
91 | 8acb1f97 | Kostas Papadimitriou | if status < 200 or status >= 300: |
92 | 27cfa807 | Vangelis Koukis | raise Exception(data, status) |
93 | 83204389 | Kostas Papadimitriou | |
94 | 8acb1f97 | Kostas Papadimitriou | return json.loads(data)
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95 | 8acb1f97 | Kostas Papadimitriou | |
96 | c700f742 | Sofia Papagiannaki | |
97 | 050485bd | Sofia Papagiannaki | def authenticate( |
98 | 7bffb0bd | Kostas Papadimitriou | token, authentication_url='http://127.0.0.1:8000/im/authenticate',
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99 | 7bffb0bd | Kostas Papadimitriou | usage=False):
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100 | 7bffb0bd | Kostas Papadimitriou | |
101 | 7bffb0bd | Kostas Papadimitriou | if usage:
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102 | 7bffb0bd | Kostas Papadimitriou | authentication_url += "?usage=1"
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103 | 7bffb0bd | Kostas Papadimitriou | |
104 | c700f742 | Sofia Papagiannaki | return call(token, authentication_url)
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105 | c700f742 | Sofia Papagiannaki | |
106 | 7bffb0bd | Kostas Papadimitriou | |
107 | c700f742 | Sofia Papagiannaki | @retry(3) |
108 | 890c2065 | Sofia Papagiannaki | def get_displaynames( |
109 | 050485bd | Sofia Papagiannaki | token, |
110 | 890c2065 | Sofia Papagiannaki | uuids, |
111 | 890c2065 | Sofia Papagiannaki | url='http://127.0.0.1:8000/user_catalogs',
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112 | 050485bd | Sofia Papagiannaki | override_users={}): |
113 | 0308f3a7 | Sofia Papagiannaki | |
114 | 890c2065 | Sofia Papagiannaki | if override_users:
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115 | 74d988b0 | Christos Stavrakakis | return dict((u, u) for u in uuids) |
116 | 0308f3a7 | Sofia Papagiannaki | |
117 | c700f742 | Sofia Papagiannaki | try:
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118 | 890c2065 | Sofia Papagiannaki | data = call( |
119 | 74d988b0 | Christos Stavrakakis | token, url, headers={'content-type': 'application/json'}, |
120 | 74d988b0 | Christos Stavrakakis | body=json.dumps({'uuids': uuids}), method='POST') |
121 | e31e4274 | Sofia Papagiannaki | except:
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122 | e31e4274 | Sofia Papagiannaki | raise
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123 | c700f742 | Sofia Papagiannaki | else:
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124 | 890c2065 | Sofia Papagiannaki | return data.get('uuid_catalog') |
125 | c700f742 | Sofia Papagiannaki | |
126 | c700f742 | Sofia Papagiannaki | |
127 | c700f742 | Sofia Papagiannaki | @retry(3) |
128 | 890c2065 | Sofia Papagiannaki | def get_uuids( |
129 | 050485bd | Sofia Papagiannaki | token, |
130 | 890c2065 | Sofia Papagiannaki | displaynames, |
131 | 890c2065 | Sofia Papagiannaki | url='http://127.0.0.1:8000/user_catalogs',
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132 | 050485bd | Sofia Papagiannaki | override_users={}): |
133 | 890c2065 | Sofia Papagiannaki | |
134 | 050485bd | Sofia Papagiannaki | if override_users:
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135 | 74d988b0 | Christos Stavrakakis | return dict((u, u) for u in displaynames) |
136 | 0308f3a7 | Sofia Papagiannaki | |
137 | c700f742 | Sofia Papagiannaki | try:
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138 | 890c2065 | Sofia Papagiannaki | data = call( |
139 | 74d988b0 | Christos Stavrakakis | token, url, headers={'content-type': 'application/json'}, |
140 | 74d988b0 | Christos Stavrakakis | body=json.dumps({'displaynames': displaynames}), method='POST') |
141 | e31e4274 | Sofia Papagiannaki | except:
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142 | e31e4274 | Sofia Papagiannaki | raise
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143 | c700f742 | Sofia Papagiannaki | else:
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144 | 890c2065 | Sofia Papagiannaki | return data.get('displayname_catalog') |
145 | 890c2065 | Sofia Papagiannaki | |
146 | 74d988b0 | Christos Stavrakakis | |
147 | 890c2065 | Sofia Papagiannaki | def get_user_uuid( |
148 | 890c2065 | Sofia Papagiannaki | token, |
149 | 890c2065 | Sofia Papagiannaki | displayname, |
150 | 890c2065 | Sofia Papagiannaki | url='http://127.0.0.1:8000/user_catalogs',
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151 | 890c2065 | Sofia Papagiannaki | override_users={}): |
152 | 890c2065 | Sofia Papagiannaki | |
153 | 890c2065 | Sofia Papagiannaki | if not displayname: |
154 | 890c2065 | Sofia Papagiannaki | return
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155 | 890c2065 | Sofia Papagiannaki | |
156 | 890c2065 | Sofia Papagiannaki | displayname_dict = get_uuids(token, [displayname], url, override_users) |
157 | 890c2065 | Sofia Papagiannaki | return displayname_dict.get(displayname)
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158 | 890c2065 | Sofia Papagiannaki | |
159 | 890c2065 | Sofia Papagiannaki | |
160 | 890c2065 | Sofia Papagiannaki | def get_displayname( |
161 | 890c2065 | Sofia Papagiannaki | token, |
162 | 890c2065 | Sofia Papagiannaki | uuid, |
163 | 890c2065 | Sofia Papagiannaki | url='http://127.0.0.1:8000/user_catalogs',
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164 | 890c2065 | Sofia Papagiannaki | override_users={}): |
165 | 890c2065 | Sofia Papagiannaki | |
166 | 890c2065 | Sofia Papagiannaki | if not uuid: |
167 | 890c2065 | Sofia Papagiannaki | return
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168 | c700f742 | Sofia Papagiannaki | |
169 | 890c2065 | Sofia Papagiannaki | uuid_dict = get_displaynames(token, [uuid], url, override_users) |
170 | 890c2065 | Sofia Papagiannaki | return uuid_dict.get(uuid)
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171 | c700f742 | Sofia Papagiannaki | |
172 | 74d988b0 | Christos Stavrakakis | |
173 | 7bffb0bd | Kostas Papadimitriou | def user_for_token(token, authentication_url, override_users, usage=False): |
174 | 8acb1f97 | Kostas Papadimitriou | if not token: |
175 | 8acb1f97 | Kostas Papadimitriou | return None |
176 | d65af928 | Kostas Papadimitriou | |
177 | 8acb1f97 | Kostas Papadimitriou | if override_users:
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178 | 8acb1f97 | Kostas Papadimitriou | try:
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179 | 050485bd | Sofia Papagiannaki | return {'uuid': override_users[token].decode('utf8')} |
180 | 8acb1f97 | Kostas Papadimitriou | except:
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181 | 8acb1f97 | Kostas Papadimitriou | return None |
182 | d65af928 | Kostas Papadimitriou | |
183 | 8acb1f97 | Kostas Papadimitriou | try:
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184 | 7bffb0bd | Kostas Papadimitriou | return authenticate(token, authentication_url, usage=usage)
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185 | 1055f3c6 | Sofia Papagiannaki | except Exception, e: |
186 | 1055f3c6 | Sofia Papagiannaki | # In case of Unauthorized response return None
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187 | 1055f3c6 | Sofia Papagiannaki | if e.args and e.args[-1] == 401: |
188 | 1055f3c6 | Sofia Papagiannaki | return None |
189 | 1055f3c6 | Sofia Papagiannaki | raise e
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190 | 8acb1f97 | Kostas Papadimitriou | |
191 | 74d988b0 | Christos Stavrakakis | |
192 | 050485bd | Sofia Papagiannaki | def get_user( |
193 | 050485bd | Sofia Papagiannaki | request, |
194 | 050485bd | Sofia Papagiannaki | authentication_url='http://127.0.0.1:8000/im/authenticate',
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195 | 050485bd | Sofia Papagiannaki | override_users={}, |
196 | 7bffb0bd | Kostas Papadimitriou | fallback_token=None,
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197 | 7bffb0bd | Kostas Papadimitriou | usage=False):
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198 | 8acb1f97 | Kostas Papadimitriou | request.user = None
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199 | 8acb1f97 | Kostas Papadimitriou | request.user_uniq = None
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200 | d65af928 | Kostas Papadimitriou | |
201 | 8acb1f97 | Kostas Papadimitriou | # Try to find token in a parameter or in a request header.
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202 | 050485bd | Sofia Papagiannaki | user = user_for_token( |
203 | 7bffb0bd | Kostas Papadimitriou | request.GET.get('X-Auth-Token'), authentication_url, override_users,
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204 | 7bffb0bd | Kostas Papadimitriou | usage=usage) |
205 | 8acb1f97 | Kostas Papadimitriou | if not user: |
206 | 050485bd | Sofia Papagiannaki | user = user_for_token( |
207 | 050485bd | Sofia Papagiannaki | request.META.get('HTTP_X_AUTH_TOKEN'),
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208 | 050485bd | Sofia Papagiannaki | authentication_url, |
209 | 7bffb0bd | Kostas Papadimitriou | override_users, |
210 | 7bffb0bd | Kostas Papadimitriou | usage=usage) |
211 | 8acb1f97 | Kostas Papadimitriou | if not user: |
212 | 050485bd | Sofia Papagiannaki | user = user_for_token( |
213 | 7bffb0bd | Kostas Papadimitriou | fallback_token, authentication_url, override_users, |
214 | 7bffb0bd | Kostas Papadimitriou | usage=usage) |
215 | 6b5b443b | Antony Chazapis | if not user: |
216 | 83204389 | Kostas Papadimitriou | logger.warning("Cannot retrieve user details from %s",
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217 | 83204389 | Kostas Papadimitriou | authentication_url) |
218 | 7bffb0bd | Kostas Papadimitriou | return None |
219 | d65af928 | Kostas Papadimitriou | |
220 | 74d988b0 | Christos Stavrakakis | # use user uuid, instead of email, keep email/displayname reference
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221 | 74d988b0 | Christos Stavrakakis | # to user_id
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222 | 83204389 | Kostas Papadimitriou | request.user_uniq = user['uuid']
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223 | 8acb1f97 | Kostas Papadimitriou | request.user = user |
224 | 890c2065 | Sofia Papagiannaki | request.user_id = user.get('displayname')
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225 | 83204389 | Kostas Papadimitriou | return user
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226 | d65af928 | Kostas Papadimitriou | |
227 | d65af928 | Kostas Papadimitriou | |
228 | d65af928 | Kostas Papadimitriou | def get_token_from_cookie(request, cookiename): |
229 | d65af928 | Kostas Papadimitriou | """
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230 | d65af928 | Kostas Papadimitriou | Extract token from the cookie name provided. Cookie should be in the same
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231 | d65af928 | Kostas Papadimitriou | form as astakos service sets its cookie contents::
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232 | d65af928 | Kostas Papadimitriou |
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233 | d65af928 | Kostas Papadimitriou | <user_uniq>|<user_token>
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234 | d65af928 | Kostas Papadimitriou | """
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235 | d65af928 | Kostas Papadimitriou | try:
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236 | d65af928 | Kostas Papadimitriou | cookie_content = unquote(request.COOKIES.get(cookiename, None))
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237 | d65af928 | Kostas Papadimitriou | return cookie_content.split("|")[1] |
238 | d65af928 | Kostas Papadimitriou | except AttributeError: |
239 | d65af928 | Kostas Papadimitriou | pass
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240 | d65af928 | Kostas Papadimitriou | |
241 | d65af928 | Kostas Papadimitriou | return None |