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1 ### -*- coding: utf-8 -*- #################################################### |
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2 ############################################################################## |
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3 # |
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4 # Copyright (c) 2008 Thierry Florac <tflorac AT ulthar.net> |
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5 # All Rights Reserved. |
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6 # |
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7 # This software is subject to the provisions of the Zope Public License, |
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8 # Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. |
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9 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED |
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10 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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11 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS |
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12 # FOR A PARTICULAR PURPOSE. |
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13 # |
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14 ############################################################################## |
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15 """ |
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16 |
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17 $Id: $ |
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18 """ |
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19 |
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20 __version__ = "$Revision: $" |
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21 __release__ = "$Id: $" |
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22 __docformat__ = "restructuredtext" |
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23 |
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24 # import standard packages |
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25 |
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26 # import Zope3 interfaces |
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27 from zope.publisher.interfaces import IRequest |
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28 from zope.annotation.interfaces import IAnnotations |
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29 |
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30 # import local interfaces |
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31 |
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32 # import Zope3 packages |
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33 from zope.security.management import getInteraction |
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34 |
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35 # import local packages |
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36 |
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37 from ztfy.utils import _ |
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38 |
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39 |
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40 def getRequest(): |
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41 """Extract request from current interaction""" |
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42 interaction = getInteraction() |
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43 for participation in interaction.participations: |
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44 if IRequest.providedBy(participation): |
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45 return participation |
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46 raise RuntimeError, _("No Request in interaction !") |
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47 |
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48 |
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49 def getRequestPrincipal(request=None): |
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50 """Get principal from given request""" |
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51 if request is None: |
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52 request = getRequest() |
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53 return request.principal |
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54 |
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55 |
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56 def getRequestAnnotations(request=None): |
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57 """Get annotations from given request""" |
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58 if request is None: |
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59 request = getRequest() |
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60 return IAnnotations(request) |
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61 |
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62 |
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63 def getRequestData(key, request=None, default=None): |
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64 """Get request data, stored into request annotations""" |
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65 try: |
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66 annotations = getRequestAnnotations(request) |
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67 return annotations.get(key, default) |
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68 except: |
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69 return default |
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70 |
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71 |
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72 def setRequestData(key, data, request=None): |
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73 annotations = getRequestAnnotations(request) |
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74 annotations[key] = data |