root / snf-django-lib / snf_django / lib / astakos.py @ 34bd6588
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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 | 2ea2e173 | Stratos Psomadakis | import logging |
35 | 2ea2e173 | Stratos Psomadakis | |
36 | 81a906f8 | Ilias Tsitsimpis | from astakosclient import AstakosClient |
37 | 2ea2e173 | Stratos Psomadakis | from astakosclient.errors import (Unauthorized, NoUUID, NoUserName, |
38 | 2ea2e173 | Stratos Psomadakis | AstakosClientException) |
39 | 83204389 | Kostas Papadimitriou | |
40 | 8acb1f97 | Kostas Papadimitriou | |
41 | 81a906f8 | Ilias Tsitsimpis | def user_for_token(client, token, usage=False): |
42 | 8acb1f97 | Kostas Papadimitriou | if not token: |
43 | 8acb1f97 | Kostas Papadimitriou | return None |
44 | d65af928 | Kostas Papadimitriou | |
45 | 8acb1f97 | Kostas Papadimitriou | try:
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46 | 81a906f8 | Ilias Tsitsimpis | return client.get_user_info(token, usage=True) |
47 | 81a906f8 | Ilias Tsitsimpis | except Unauthorized:
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48 | 81a906f8 | Ilias Tsitsimpis | return None |
49 | 8acb1f97 | Kostas Papadimitriou | |
50 | 74d988b0 | Christos Stavrakakis | |
51 | 81a906f8 | Ilias Tsitsimpis | def get_user(request, astakos_url, fallback_token=None, |
52 | 81a906f8 | Ilias Tsitsimpis | usage=False, logger=None): |
53 | 8acb1f97 | Kostas Papadimitriou | request.user = None
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54 | 8acb1f97 | Kostas Papadimitriou | request.user_uniq = None
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55 | d65af928 | Kostas Papadimitriou | |
56 | 81a906f8 | Ilias Tsitsimpis | client = AstakosClient(astakos_url, retry=2, use_pool=True, logger=logger) |
57 | 8acb1f97 | Kostas Papadimitriou | # Try to find token in a parameter or in a request header.
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58 | 81a906f8 | Ilias Tsitsimpis | user = user_for_token(client, request.GET.get('X-Auth-Token'), usage=usage)
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59 | 8acb1f97 | Kostas Papadimitriou | if not user: |
60 | 81a906f8 | Ilias Tsitsimpis | user = user_for_token(client, |
61 | 81a906f8 | Ilias Tsitsimpis | request.META.get('HTTP_X_AUTH_TOKEN'),
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62 | 81a906f8 | Ilias Tsitsimpis | usage=usage) |
63 | 8acb1f97 | Kostas Papadimitriou | if not user: |
64 | 81a906f8 | Ilias Tsitsimpis | user = user_for_token(client, fallback_token, usage=usage) |
65 | 6b5b443b | Antony Chazapis | if not user: |
66 | 7bffb0bd | Kostas Papadimitriou | return None |
67 | d65af928 | Kostas Papadimitriou | |
68 | 74d988b0 | Christos Stavrakakis | # use user uuid, instead of email, keep email/displayname reference
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69 | 74d988b0 | Christos Stavrakakis | # to user_id
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70 | 83204389 | Kostas Papadimitriou | request.user_uniq = user['uuid']
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71 | 8acb1f97 | Kostas Papadimitriou | request.user = user |
72 | 890c2065 | Sofia Papagiannaki | request.user_id = user.get('displayname')
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73 | 83204389 | Kostas Papadimitriou | return user
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74 | d65af928 | Kostas Papadimitriou | |
75 | d65af928 | Kostas Papadimitriou | |
76 | 76a13815 | Christos Stavrakakis | class UserCache(object): |
77 | 76a13815 | Christos Stavrakakis | """uuid<->displayname user 'cache'"""
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78 | 76a13815 | Christos Stavrakakis | |
79 | 81a906f8 | Ilias Tsitsimpis | def __init__(self, astakos_url, astakos_token, split=100, logger=None): |
80 | 2ea2e173 | Stratos Psomadakis | if logger is None: |
81 | 2ea2e173 | Stratos Psomadakis | logger = logging.getLogger(__name__) |
82 | 2ea2e173 | Stratos Psomadakis | self.logger = logger
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83 | 2ea2e173 | Stratos Psomadakis | |
84 | 81a906f8 | Ilias Tsitsimpis | self.astakos = AstakosClient(astakos_url, retry=2, |
85 | 81a906f8 | Ilias Tsitsimpis | use_pool=True, logger=logger)
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86 | 76a13815 | Christos Stavrakakis | self.astakos_token = astakos_token
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87 | 76a13815 | Christos Stavrakakis | self.users = {}
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88 | 76a13815 | Christos Stavrakakis | |
89 | 76a13815 | Christos Stavrakakis | self.split = split
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90 | 76a13815 | Christos Stavrakakis | assert(self.split > 0), "split must be positive" |
91 | 76a13815 | Christos Stavrakakis | |
92 | 76a13815 | Christos Stavrakakis | def fetch_names(self, uuid_list): |
93 | 76a13815 | Christos Stavrakakis | total = len(uuid_list)
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94 | 76a13815 | Christos Stavrakakis | split = self.split
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95 | 2ea2e173 | Stratos Psomadakis | count = 0
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96 | 76a13815 | Christos Stavrakakis | |
97 | 76a13815 | Christos Stavrakakis | for start in range(0, total, split): |
98 | 76a13815 | Christos Stavrakakis | end = start + split |
99 | 76a13815 | Christos Stavrakakis | try:
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100 | 81a906f8 | Ilias Tsitsimpis | names = self.astakos.service_get_usernames(
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101 | 81a906f8 | Ilias Tsitsimpis | self.astakos_token, uuid_list[start:end])
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102 | 2ea2e173 | Stratos Psomadakis | count += len(names)
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103 | 2ea2e173 | Stratos Psomadakis | |
104 | 76a13815 | Christos Stavrakakis | self.users.update(names)
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105 | 2ea2e173 | Stratos Psomadakis | except AstakosClientException:
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106 | 81a906f8 | Ilias Tsitsimpis | pass
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107 | 2ea2e173 | Stratos Psomadakis | except Exception as err: |
108 | 2ea2e173 | Stratos Psomadakis | self.logger.error("Unexpected error while fetching " |
109 | 2ea2e173 | Stratos Psomadakis | "user display names: %s" % repr(err)) |
110 | 2ea2e173 | Stratos Psomadakis | |
111 | 2ea2e173 | Stratos Psomadakis | diff = (total - count) |
112 | 2ea2e173 | Stratos Psomadakis | assert(diff >= 0), "fetched more displaynames than requested" |
113 | 2ea2e173 | Stratos Psomadakis | |
114 | 2ea2e173 | Stratos Psomadakis | if diff:
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115 | 2ea2e173 | Stratos Psomadakis | self.logger.debug("Failed to fetch %d displaynames", diff) |
116 | 76a13815 | Christos Stavrakakis | |
117 | 76a13815 | Christos Stavrakakis | def get_uuid(self, name): |
118 | 2ea2e173 | Stratos Psomadakis | uuid = name |
119 | 2ea2e173 | Stratos Psomadakis | |
120 | 76a13815 | Christos Stavrakakis | if not name in self.users: |
121 | 76a13815 | Christos Stavrakakis | try:
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122 | 2ea2e173 | Stratos Psomadakis | uuid = self.astakos.service_get_uuid(
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123 | 2ea2e173 | Stratos Psomadakis | self.astakos_token, name)
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124 | 2ea2e173 | Stratos Psomadakis | except NoUUID:
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125 | 2ea2e173 | Stratos Psomadakis | self.logger.debug("Failed to fetch uuid for %s", name) |
126 | 2ea2e173 | Stratos Psomadakis | except AstakosClientException:
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127 | 2ea2e173 | Stratos Psomadakis | pass
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128 | 2ea2e173 | Stratos Psomadakis | except Exception as err: |
129 | 2ea2e173 | Stratos Psomadakis | self.logger.error("Unexpected error while fetching " |
130 | 2ea2e173 | Stratos Psomadakis | "user uuid %s: %s" % (name, repr(err))) |
131 | 2ea2e173 | Stratos Psomadakis | finally:
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132 | 2ea2e173 | Stratos Psomadakis | self.users[name] = uuid
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133 | 76a13815 | Christos Stavrakakis | |
134 | 76a13815 | Christos Stavrakakis | return self.users[name] |
135 | 76a13815 | Christos Stavrakakis | |
136 | 76a13815 | Christos Stavrakakis | def get_name(self, uuid): |
137 | 2ea2e173 | Stratos Psomadakis | name = "-"
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138 | 76a13815 | Christos Stavrakakis | |
139 | 76a13815 | Christos Stavrakakis | if not uuid in self.users: |
140 | 76a13815 | Christos Stavrakakis | try:
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141 | 2ea2e173 | Stratos Psomadakis | name = self.astakos.service_get_username(
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142 | 2ea2e173 | Stratos Psomadakis | self.astakos_token, uuid)
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143 | 2ea2e173 | Stratos Psomadakis | except NoUserName:
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144 | 2ea2e173 | Stratos Psomadakis | self.logger.debug("Failed to fetch display name for %s", uuid) |
145 | 2ea2e173 | Stratos Psomadakis | except AstakosClientException:
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146 | 2ea2e173 | Stratos Psomadakis | pass
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147 | 2ea2e173 | Stratos Psomadakis | except Exception as err: |
148 | 2ea2e173 | Stratos Psomadakis | self.logger.error("Unexpected error while fetching " |
149 | 2ea2e173 | Stratos Psomadakis | "user displayname %s: %s"
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150 | 2ea2e173 | Stratos Psomadakis | % (uuid, repr(err)))
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151 | 2ea2e173 | Stratos Psomadakis | finally:
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152 | 2ea2e173 | Stratos Psomadakis | self.users[uuid] = name
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153 | 76a13815 | Christos Stavrakakis | |
154 | 76a13815 | Christos Stavrakakis | return self.users[uuid] |