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annotate libervia/server/session_iface.py @ 1346:cda5537c71d6

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browser (photos/album): videos integrations: videos can now be added to an album, the alternative media player is then used to display them. Slides options are used to remove pagination and slidebar from slideshow (they don't play well with media player), and video are reset when its slide is exited.
author Goffi <goffi@goffi.org>
date Tue, 25 Aug 2020 08:31:56 +0200
parents a0954b6610aa
children 822bd0139769
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1 #!/usr/bin/env python3
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2
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3 # Libervia: a SàT frontend
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4 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 from zope.interface import Interface, Attribute
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19 from zope.interface import implementer
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20 from libervia.server.constants import Const as C
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21 from libervia.server.classes import Notification
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22 from collections import OrderedDict
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23 import os.path
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24 import shortuuid
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25 import time
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26
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27 FLAGS_KEY = "_flags"
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28 NOTIFICATIONS_KEY = "_notifications"
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29 MAX_CACHE_AFFILIATIONS = 100 # number of nodes to keep in cache
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32 class ISATSession(Interface):
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33 profile = Attribute("Sat profile")
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34 jid = Attribute("JID associated with the profile")
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35 uuid = Attribute("uuid associated with the profile session")
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36 identities = Attribute("Identities of XMPP entities")
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38
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39 @implementer(ISATSession)
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40 class SATSession(object):
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41
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42 def __init__(self, session):
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43 self.profile = None
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44 self.jid = None
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45 self.started = time.time()
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46 # time when the backend session was started
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47 self.backend_started = None
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48 self.uuid = str(shortuuid.uuid())
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49 self.identities = {}
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50 self.csrf_token = str(shortuuid.uuid())
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51 self.locale = None # i18n of the pages
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52 self.theme = None
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53 self.pages_data = {} # used to keep data accross reloads (key is page instance)
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54 self.affiliations = OrderedDict() # cache for node affiliations
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55
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56 @property
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57 def cache_dir(self):
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58 if self.profile is None:
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59 return self.service_cache_url + "/"
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60 return os.path.join("/", C.CACHE_DIR, self.uuid) + "/"
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61
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62 @property
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63 def connected(self):
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64 return self.profile is not None
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65
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66 @property
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67 def guest(self):
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68 """True if this is a guest session"""
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69 if self.profile is None:
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70 return False
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71 else:
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72 return self.profile.startswith("guest@@")
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73
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74 def getPageData(self, page, key):
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75 """get session data for a page
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76
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77 @param page(LiberviaPage): instance of the page
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78 @param key(object): data key
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79 return (None, object): value of the key
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80 None if not found or page_data doesn't exist
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81 """
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82 return self.pages_data.get(page, {}).get(key)
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83
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84 def popPageData(self, page, key, default=None):
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85 """like getPageData, but remove key once value is gotten
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86
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87 @param page(LiberviaPage): instance of the page
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88 @param key(object): data key
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89 @param default(object): value to return if key is not found
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90 @return (object): found value or default
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91 """
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92 page_data = self.pages_data.get(page)
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93 if page_data is None:
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94 return default
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95 value = page_data.pop(key, default)
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96 if not page_data:
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97 # no need to keep unused page_data
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98 del self.pages_data[page]
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99 return value
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100
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101 def setPageData(self, page, key, value):
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102 """set data to persist on reload
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103
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104 @param page(LiberviaPage): instance of the page
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105 @param key(object): data key
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106 @param value(object): value to set
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107 @return (object): set value
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108 """
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109 page_data = self.pages_data.setdefault(page, {})
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110 page_data[key] = value
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111 return value
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112
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113 def setPageFlag(self, page, flag):
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114 """set a flag for this page
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115
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116 @param page(LiberviaPage): instance of the page
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117 @param flag(unicode): flag to set
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118 """
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119 flags = self.getPageData(page, FLAGS_KEY)
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120 if flags is None:
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121 flags = self.setPageData(page, FLAGS_KEY, set())
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122 flags.add(flag)
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123
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124 def popPageFlag(self, page, flag):
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125 """return True if flag is set
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126
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127 flag is removed if it was set
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128 @param page(LiberviaPage): instance of the page
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129 @param flag(unicode): flag to set
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130 @return (bool): True if flaag was set
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131 """
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132 page_data = self.pages_data.get(page, {})
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133 flags = page_data.get(FLAGS_KEY)
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134 if flags is None:
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135 return False
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136 if flag in flags:
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137 flags.remove(flag)
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138 # we remove data if they are not used anymore
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139 if not flags:
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140 del page_data[FLAGS_KEY]
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141 if not page_data:
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142 del self.pages_data[page]
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143 return True
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144 else:
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145 return False
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146
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147 def setPageNotification(self, page, message, level=C.LVL_INFO):
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148 """set a flag for this page
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149
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150 @param page(LiberviaPage): instance of the page
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151 @param flag(unicode): flag to set
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152 """
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153 notif = Notification(message, level)
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154 notifs = self.getPageData(page, NOTIFICATIONS_KEY)
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155 if notifs is None:
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156 notifs = self.setPageData(page, NOTIFICATIONS_KEY, [])
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157 notifs.append(notif)
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158
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159 def popPageNotifications(self, page):
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160 """Return and remove last page notification
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161
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162 @param page(LiberviaPage): instance of the page
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163 @return (list[Notification]): notifications if any
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164 """
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165 page_data = self.pages_data.get(page, {})
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166 notifs = page_data.get(NOTIFICATIONS_KEY)
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167 if not notifs:
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168 return []
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169 ret = notifs[:]
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170 del notifs[:]
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171 return ret
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172
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173 def getAffiliation(self, service, node):
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174 """retrieve affiliation for a pubsub node
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175
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176 @param service(jid.JID): pubsub service
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177 @param node(unicode): pubsub node
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178 @return (unicode, None): affiliation, or None if it is not in cache
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179 """
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180 if service.resource:
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181 raise ValueError("Service must not have a resource")
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182 if not node:
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183 raise ValueError("node must be set")
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184 try:
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185 affiliation = self.affiliations.pop((service, node))
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186 except KeyError:
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187 return None
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188 else:
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189 # we replace at the top to get the most recently used on top
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190 # so less recently used will be removed if cache is full
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191 self.affiliations[(service, node)] = affiliation
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192 return affiliation
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193
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194 def setAffiliation(self, service, node, affiliation):
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195 """cache affiliation for a node
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196
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197 will empty cache when it become too big
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198 @param service(jid.JID): pubsub service
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199 @param node(unicode): pubsub node
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200 @param affiliation(unicode): affiliation to this node
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201 """
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202 if service.resource:
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203 raise ValueError("Service must not have a resource")
1093
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204 if not node:
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205 raise ValueError("node must be set")
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206 self.affiliations[(service, node)] = affiliation
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diff changeset
207 while len(self.affiliations) > MAX_CACHE_AFFILIATIONS:
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diff changeset
208 self.affiliations.popitem(last=False)
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diff changeset
209
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210
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Goffi <goffi@goffi.org>
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211 class ISATGuestSession(Interface):
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parents:
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212 id = Attribute("UUID of the guest")
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parents:
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213 data = Attribute("data associated with the guest")
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parents:
diff changeset
214
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parents:
diff changeset
215
1216
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diff changeset
216 @implementer(ISATGuestSession)
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diff changeset
217 class SATGuestSession(object):
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parents:
diff changeset
218
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Goffi <goffi@goffi.org>
parents:
diff changeset
219 def __init__(self, session):
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parents:
diff changeset
220 self.id = None
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Goffi <goffi@goffi.org>
parents:
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221 self.data = None