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annotate src/server/session_iface.py @ 976:0f676f09404b

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author Goffi <goffi@goffi.org>
date Sat, 11 Nov 2017 18:57:01 +0100
parents fd4eae654182
children f88325b56a6a
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a SAT frontend
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5 # Copyright (C) 2009-2017 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 from zope.interface import Interface, Attribute, implements
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20 from sat.tools.common import data_objects
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21 import shortuuid
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22
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23 FLAGS_KEY = '_flags'
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24
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25 class ISATSession(Interface):
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26 profile = Attribute("Sat profile")
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27 jid = Attribute("JID associated with the profile")
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28 uuid = Attribute("uuid associated with the profile session")
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29 identities = Attribute("Identities of XMPP entities")
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30
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31
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32 class SATSession(object):
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33 implements(ISATSession)
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34
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35 def __init__(self, session):
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36 self.profile = None
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37 self.jid = None
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38 self.uuid = unicode(shortuuid.uuid())
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39 self.identities = data_objects.Identities()
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40 self.csrf_token = unicode(shortuuid.uuid())
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41 self.pages_data = {} # used to keep data accross reloads (key is page instance)
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42
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43 def getPageData(self, page, key):
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44 """get session data for a page
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45
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46 @param page(LiberviaPage): instance of the page
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47 @param key(object): data key
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48 return (None, object): value of the key
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49 None if not found or page_data doesn't exist
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50 """
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51 return self.pages_data.get(page, {}).get(key)
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52
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53 def popPageData(self, page, key, default=None):
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54 """like getPageData, but remove key once value is gotten
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55
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56 @param page(LiberviaPage): instance of the page
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57 @param key(object): data key
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58 @param default(object): value to return if key is not found
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59 @return (object): found value or default
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60 """
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61 page_data = self.pages_data.get(page)
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62 if page_data is None:
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63 return default
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64 value = page_data.pop(key, default)
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65 if not page_data:
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66 # no need to keep unused page_data
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67 del self.pages_data[page]
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68 return value
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69
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70 def setPageData(self, page, key, value):
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71 """set data to persist on reload
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72
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73 @param page(LiberviaPage): instance of the page
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74 @param key(object): data key
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75 @param value(object): value to set
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76 @return (object): set value
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77 """
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78 page_data = self.pages_data.setdefault(page, {})
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79 page_data[key] = value
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80 return value
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81
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82 def setPageFlag(self, page, flag):
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83 """set a flag for this page
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84
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85 @param page(LiberviaPage): instance of the page
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86 @param flag(unicode): flag to set
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87 """
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88 flags = self.getPageData(page, FLAGS_KEY)
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89 if flags is None:
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90 flags = self.setPageData(page, FLAGS_KEY, set())
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91 flags.add(flag)
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92
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93 def popPageFlag(self, page, flag):
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94 """return True if flag is set
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95
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96 flag is removed if it was set
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97 @param page(LiberviaPage): instance of the page
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98 @param flag(unicode): flag to set
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99 @return (bool): True if flaag was set
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100 """
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101 page_data = self.pages_data.get(page, {})
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102 flags = page_data.get(FLAGS_KEY)
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103 if flags is None:
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104 return False
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105 if flag in flags:
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106 flags.remove(flag)
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107 # we remove data if they are not used anymore
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108 if not flags:
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109 del page_data[FLAGS_KEY]
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110 if not page_data:
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111 del self.pages_data[page]
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112 return True
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113 else:
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114 return False
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117 class ISATGuestSession(Interface):
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118 id = Attribute("UUID of the guest")
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119 data = Attribute("data associated with the guest")
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120
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121
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122 class SATGuestSession(object):
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123 implements(ISATGuestSession)
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124
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125 def __init__(self, session):
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126 self.id = None
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127 self.data = None