root / snf-astakos-app / astakos / im / decorators.py @ 14a7ba1a
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1 | 14a7ba1a | Sofia Papagiannaki | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | 14a7ba1a | Sofia Papagiannaki | #
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3 | 14a7ba1a | Sofia Papagiannaki | # Redistribution and use in source and binary forms, with or
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4 | 14a7ba1a | Sofia Papagiannaki | # without modification, are permitted provided that the following
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5 | 14a7ba1a | Sofia Papagiannaki | # conditions are met:
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6 | 14a7ba1a | Sofia Papagiannaki | #
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7 | 14a7ba1a | Sofia Papagiannaki | # 1. Redistributions of source code must retain the above
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8 | 14a7ba1a | Sofia Papagiannaki | # copyright notice, this list of conditions and the following
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9 | 14a7ba1a | Sofia Papagiannaki | # disclaimer.
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10 | 14a7ba1a | Sofia Papagiannaki | #
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11 | 14a7ba1a | Sofia Papagiannaki | # 2. Redistributions in binary form must reproduce the above
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12 | 14a7ba1a | Sofia Papagiannaki | # copyright notice, this list of conditions and the following
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13 | 14a7ba1a | Sofia Papagiannaki | # disclaimer in the documentation and/or other materials
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14 | 14a7ba1a | Sofia Papagiannaki | # provided with the distribution.
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15 | 14a7ba1a | Sofia Papagiannaki | #
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16 | 14a7ba1a | Sofia Papagiannaki | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 14a7ba1a | Sofia Papagiannaki | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 14a7ba1a | Sofia Papagiannaki | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 14a7ba1a | Sofia Papagiannaki | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 14a7ba1a | Sofia Papagiannaki | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 14a7ba1a | Sofia Papagiannaki | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 14a7ba1a | Sofia Papagiannaki | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 14a7ba1a | Sofia Papagiannaki | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 14a7ba1a | Sofia Papagiannaki | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 14a7ba1a | Sofia Papagiannaki | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 14a7ba1a | Sofia Papagiannaki | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 14a7ba1a | Sofia Papagiannaki | # POSSIBILITY OF SUCH DAMAGE.
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28 | 14a7ba1a | Sofia Papagiannaki | #
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29 | 14a7ba1a | Sofia Papagiannaki | # The views and conclusions contained in the software and
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30 | 14a7ba1a | Sofia Papagiannaki | # documentation are those of the authors and should not be
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31 | 14a7ba1a | Sofia Papagiannaki | # interpreted as representing official policies, either expressed
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32 | 14a7ba1a | Sofia Papagiannaki | # or implied, of GRNET S.A.
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33 | 14a7ba1a | Sofia Papagiannaki | |
34 | 14a7ba1a | Sofia Papagiannaki | from functools import wraps |
35 | 14a7ba1a | Sofia Papagiannaki | |
36 | 14a7ba1a | Sofia Papagiannaki | from django.http import HttpResponse |
37 | 14a7ba1a | Sofia Papagiannaki | |
38 | 14a7ba1a | Sofia Papagiannaki | from astakos.im.cookie import CookieHandler |
39 | 14a7ba1a | Sofia Papagiannaki | |
40 | 14a7ba1a | Sofia Papagiannaki | |
41 | 14a7ba1a | Sofia Papagiannaki | def cookie_fix(func): |
42 | 14a7ba1a | Sofia Papagiannaki | """
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43 | 14a7ba1a | Sofia Papagiannaki | Decorator checks whether the request.user conforms
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44 | 14a7ba1a | Sofia Papagiannaki | with the astakos cookie and if not it fixes it.
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45 | 14a7ba1a | Sofia Papagiannaki | """
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46 | 14a7ba1a | Sofia Papagiannaki | @wraps(func)
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47 | 14a7ba1a | Sofia Papagiannaki | def wrapper(request, *args, **kwargs): |
48 | 14a7ba1a | Sofia Papagiannaki | cookie = CookieHandler(request) |
49 | 14a7ba1a | Sofia Papagiannaki | if not cookie.is_valid: |
50 | 14a7ba1a | Sofia Papagiannaki | # redirect to request path to set/delete the cookie
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51 | 14a7ba1a | Sofia Papagiannaki | response = HttpResponse(status=302)
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52 | 14a7ba1a | Sofia Papagiannaki | response['Location'] = request.get_full_path()
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53 | 14a7ba1a | Sofia Papagiannaki | cookie.fix(response) |
54 | 14a7ba1a | Sofia Papagiannaki | return response
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55 | 14a7ba1a | Sofia Papagiannaki | |
56 | 14a7ba1a | Sofia Papagiannaki | response = func(request, *args, **kwargs) |
57 | 14a7ba1a | Sofia Papagiannaki | |
58 | 14a7ba1a | Sofia Papagiannaki | # if the user authentication status has changed during the processing
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59 | 14a7ba1a | Sofia Papagiannaki | # set/delete the cookie appropriately
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60 | 14a7ba1a | Sofia Papagiannaki | if not cookie.is_valid: |
61 | 14a7ba1a | Sofia Papagiannaki | cookie.fix(response) |
62 | 14a7ba1a | Sofia Papagiannaki | return response
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63 | 14a7ba1a | Sofia Papagiannaki | return wrapper |