347 lines
15 KiB
Python
Executable file
347 lines
15 KiB
Python
Executable file
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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"""
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SAT plugin for microbloging with roster access
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Copyright (C) 2009, 2010, 2011, 2012 Jérôme Poisson (goffi@goffi.org)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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from logging import debug, info, error
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from twisted.internet import defer
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from twisted.words.protocols.jabber import jid
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from wokkel import disco, data_form, iwokkel
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from zope.interface import implements
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try:
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from twisted.words.protocols.xmlstream import XMPPHandler
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except ImportError:
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from wokkel.subprotocols import XMPPHandler
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NS_PUBSUB = 'http://jabber.org/protocol/pubsub'
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NS_GROUPBLOG = 'http://goffi.org/protocol/groupblog'
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NS_NODE_PREFIX = 'urn:xmpp:groupblog:'
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#NS_PUBSUB_EXP = 'http://goffi.org/protocol/pubsub' #for non official features
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NS_PUBSUB_EXP = NS_PUBSUB #XXX: we can't use custom namespace as Wokkel's PubSubService use official NS
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NS_PUBSUB_ITEM_ACCESS = NS_PUBSUB_EXP + "#item-access"
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NS_PUBSUB_CREATOR_JID_CHECK = NS_PUBSUB_EXP + "#creator-jid-check"
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NS_PUBSUB_ITEM_CONFIG = NS_PUBSUB_EXP + "#item-config"
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NS_PUBSUB_AUTO_CREATE = NS_PUBSUB + "#auto-create"
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OPT_ROSTER_GROUPS_ALLOWED = 'pubsub#roster_groups_allowed'
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OPT_ACCESS_MODEL = 'pubsub#access_model'
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OPT_PERSIST_ITEMS = 'pubsub#persist_items'
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OPT_MAX_ITEMS = 'pubsub#max_items'
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OPT_NODE_TYPE = 'pubsub#node_type'
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OPT_SUBSCRIPTION_TYPE = 'pubsub#subscription_type'
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OPT_SUBSCRIPTION_DEPTH = 'pubsub#subscription_depth'
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TYPE_COLLECTION = 'collection'
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PLUGIN_INFO = {
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"name": "Group blogging throught collections",
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"import_name": "groupblog",
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"type": "MISC",
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"protocols": [],
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"dependencies": ["XEP-0277"],
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"main": "GroupBlog",
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"handler": "yes",
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"description": _("""Implementation of microblogging with roster access""")
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}
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class NoCompatiblePubSubServerFound(Exception):
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pass
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class BadAccessTypeError(Exception):
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pass
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class BadAccessListError(Exception):
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pass
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class GroupBlog():
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"""This class use a SàT PubSub Service to manage access on microblog"""
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def __init__(self, host):
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info(_("Group blog plugin initialization"))
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self.host = host
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host.bridge.addMethod("sendGroupBlog", ".plugin", in_sign='sasss', out_sign='',
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method=self.sendGroupBlog)
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host.bridge.addMethod("getLastGroupBlogs", ".plugin",
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in_sign='sis', out_sign='aa{ss}',
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method=self.getLastGroupBlogs,
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async = True)
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host.bridge.addMethod("getMassiveLastGroupBlogs", ".plugin",
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in_sign='sasis', out_sign='a{saa{ss}}',
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method=self.getMassiveLastGroupBlogs,
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async = True)
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host.bridge.addMethod("subscribeGroupBlog", ".plugin", in_sign='ss', out_sign='',
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method=self.subscribeGroupBlog,
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async = True)
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host.bridge.addMethod("massiveSubscribeGroupBlogs", ".plugin", in_sign='sass', out_sign='',
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method=self.massiveSubscribeGroupBlogs,
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async = True)
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host.trigger.add("PubSubItemsReceived", self.pubSubItemsReceivedTrigger)
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def getHandler(self, profile):
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return GroupBlog_handler()
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@defer.inlineCallbacks
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def initialise(self, profile_key):
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"""Check that this data for this profile are initialised, and do it else
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@param client: client of the profile
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@profile_key: %(doc_profile)s"""
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profile = self.host.memory.getProfileName(profile_key)
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if not profile:
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error(_("Unknown profile"))
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raise Exception("Unknown profile")
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client = self.host.getClient(profile)
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if not client:
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error(_('No client for this profile key: %s') % profile_key)
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raise Exception("Unknown profile")
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yield client.client_initialized #we want to be sure that the client is initialized
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#we first check that we have a item-access pubsub server
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if not hasattr(client,"item_access_pubsub"):
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debug(_('Looking for item-access power pubsub server'))
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#we don't have any pubsub server featuring item access yet
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client.item_access_pubsub = None
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client._item_access_pubsub_pending = defer.Deferred()
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for entity in self.host.memory.getServerServiceEntities("pubsub", "service", profile):
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_disco = yield client.disco.requestInfo(entity)
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#if set([NS_PUBSUB_ITEM_ACCESS, NS_PUBSUB_AUTO_CREATE, NS_PUBSUB_CREATOR_JID_CHECK]).issubset(_disco.features):
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if set([NS_PUBSUB_AUTO_CREATE, NS_PUBSUB_CREATOR_JID_CHECK]).issubset(_disco.features):
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info(_("item-access powered pubsub service found: [%s]") % entity.full())
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client.item_access_pubsub = entity
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client._item_access_pubsub_pending.callback(None)
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if hasattr(client,"_item_access_pubsub_pending"):
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#XXX: we need to wait for item access pubsub service check
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ignore = yield client._item_access_pubsub_pending
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del client._item_access_pubsub_pending
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if not client.item_access_pubsub:
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error(_("No item-access powered pubsub server found, can't use group blog"))
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raise NoCompatiblePubSubServerFound
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defer.returnValue((profile, client))
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def pubSubItemsReceivedTrigger(self, event, profile):
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""""Trigger which catch groupblogs events"""
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if event.nodeIdentifier.startswith(NS_NODE_PREFIX):
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for item in event.items:
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microblog_data = self.host.plugins["XEP-0277"].item2mbdata(item)
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self.host.bridge.personalEvent(event.sender.full(), "MICROBLOG", microblog_data, profile)
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return False
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return True
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def getNodeName(self, publisher):
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"""Retrieve the name of publisher's node
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@param publisher: publisher's jid
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@return: node's name (string)"""
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return NS_NODE_PREFIX + publisher.userhost()
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def _publishMblog(self, service, client, access_type, access_list, message):
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"""Actually publish the message on the group blog
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@param service: jid of the item-access pubsub service
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@param client: SatXMPPClient of the published
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@param access_type: one of "PUBLIC", "GROUP", "JID"
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@param access_list: set of entities (empty list for all, groups or jids) allowed to see the item
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@param message: message to publish
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"""
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mblog_item = self.host.plugins["XEP-0277"].data2entry({'content':message}, client.profile)
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form = data_form.Form('submit', formNamespace=NS_PUBSUB_ITEM_CONFIG)
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if access_type == "PUBLIC":
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if access_list:
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raise BadAccessListError("access_list must be empty for PUBLIC access")
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access = data_form.Field(None, OPT_ACCESS_MODEL, value="open")
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form.addField(access)
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elif access_type == "GROUP":
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access = data_form.Field(None, OPT_ACCESS_MODEL, value="roster")
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allowed = data_form.Field(None, OPT_ROSTER_GROUPS_ALLOWED, values=access_list)
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form.addField(access)
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form.addField(allowed)
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mblog_item.addChild(form.toElement())
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elif access_type == "JID":
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raise NotImplementedError
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else:
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error(_("Unknown access_type"))
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raise BadAccessTypeError
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defer_blog = self.host.plugins["XEP-0060"].publish(service, self.getNodeName(client.jid), items=[mblog_item], profile_key=client.profile)
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defer_blog.addErrback(self._mblogPublicationFailed)
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def _mblogPublicationFailed(self, failure):
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#TODO
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return failure
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def sendGroupBlog(self, access_type, access_list, message, profile_key='@DEFAULT@'):
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"""Publish a microblog with given item access
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@param access_type: one of "PUBLIC", "GROUP", "JID"
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@param access_list: list of authorized entity (empty list for PUBLIC ACCESS,
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list of groups or list of jids) for this item
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@param message: microblog
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@profile_key: %(doc_profile)s
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"""
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print "sendGroupBlog"
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def initialised(result):
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profile, client = result
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if access_type == "PUBLIC":
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if access_list:
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raise Exception("Publishers list must be empty when getting microblogs for all contacts")
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self._publishMblog(client.item_access_pubsub, client, "PUBLIC", [], message)
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elif access_type == "GROUP":
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_groups = set(access_list).intersection(client.roster.getGroups()) #We only keep group which actually exist
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if not _groups:
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raise BadAccessListError("No valid group")
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self._publishMblog(client.item_access_pubsub, client, "GROUP", _groups, message)
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elif access_type == "JID":
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raise NotImplementedError
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else:
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error(_("Unknown access type"))
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raise BadAccessTypeError
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self.initialise(profile_key).addCallback(initialised)
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def getLastGroupBlogs(self, pub_jid, max_items=10, profile_key='@DEFAULT@'):
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"""Get the last published microblogs
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@param pub_jid: jid of the publisher
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@param max_items: how many microblogs we want to get (see XEP-0060 #6.5.7)
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@param profile_key: profile key
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@return: list of microblog data (dict)
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"""
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def initialised(result):
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profile, client = result
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d = self.host.plugins["XEP-0060"].getItems(client.item_access_pubsub, self.getNodeName(jid.JID(pub_jid)),
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max_items=max_items, profile_key=profile_key)
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d.addCallback(lambda items: map(self.host.plugins["XEP-0277"].item2mbdata, items))
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d.addErrback(lambda ignore: {}) #TODO: more complete error management (log !)
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return d
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#TODO: we need to use the server corresponding the the host of the jid
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return self.initialise(profile_key).addCallback(initialised)
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def getMassiveLastGroupBlogs(self, publishers_type, publishers, max_items=10, profile_key='@DEFAULT@'):
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"""Get the last published microblogs for a list of groups or jids
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@param publishers_type: type of the list of publishers (one of "GROUP" or "JID" or "ALL")
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@param publishers: list of publishers, according to "publishers_type" (list of groups or list of jids)
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@param max_items: how many microblogs we want to get
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@param profile_key: profile key
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"""
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def sendResult(result):
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"""send result of DeferredList (list of microblogs to the calling method"""
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ret = {}
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for (success, value) in result:
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if success:
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source_jid, data = value
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ret[source_jid] = data
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return ret
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def initialised(result):
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profile, client = result
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if publishers_type == "ALL":
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contacts = client.roster.getItems()
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jids = [contact.jid.userhost() for contact in contacts]
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mblogs = []
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for _jid in jids:
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d = self.host.plugins["XEP-0060"].getItems(client.item_access_pubsub, self.getNodeName(jid.JID(_jid)),
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max_items=max_items, profile_key=profile_key)
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d.addCallback(lambda items, source_jid: (source_jid, map(self.host.plugins["XEP-0277"].item2mbdata, items)), _jid)
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mblogs.append(d)
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dlist = defer.DeferredList(mblogs)
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dlist.addCallback(sendResult)
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return dlist
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return defer.fail("Unknown type")
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#TODO: custom exception
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if publishers_type not in ["GROUP", "JID", "ALL"]:
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raise Exception("Bad call, unknown publishers_type")
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if publishers_type=="ALL" and publishers:
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raise Exception("Publishers list must be empty when getting microblogs for all contacts")
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return self.initialise(profile_key).addCallback(initialised)
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#TODO: we need to use the server corresponding the the host of the jid
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def subscribeGroupBlog(self, pub_jid, profile_key='@DEFAULT'):
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def initialised(result):
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profile, client = result
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d = self.host.plugins["XEP-0060"].subscribe(client.item_access_pubsub, self.getNodeName(jid.JID(pub_jid)),
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profile_key=profile_key)
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return d
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#TODO: we need to use the server corresponding the the host of the jid
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return self.initialise(profile_key).addCallback(initialised)
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def massiveSubscribeGroupBlogs(self, publishers_type, publishers, profile_key='@DEFAULT@'):
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"""Subscribe microblogs for a list of groups or jids
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@param publishers_type: type of the list of publishers (one of "GROUP" or "JID" or "ALL")
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@param publishers: list of publishers, according to "publishers_type" (list of groups or list of jids)
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@param profile_key: profile key
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"""
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def initialised(result):
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profile, client = result
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if publishers_type == "ALL":
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contacts = client.roster.getItems()
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jids = [contact.jid.userhost() for contact in contacts]
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mblogs = []
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for _jid in jids:
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d = self.host.plugins["XEP-0060"].subscribe(client.item_access_pubsub, self.getNodeName(jid.JID(_jid)),
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profile_key=profile_key)
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mblogs.append(d)
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dlist = defer.DeferredList(mblogs)
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return dlist
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return defer.fail("Unknown type")
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#TODO: custom exception
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if publishers_type not in ["GROUP", "JID", "ALL"]:
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raise Exception("Bad call, unknown publishers_type")
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if publishers_type=="ALL" and publishers:
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raise Exception("Publishers list must be empty when getting microblogs for all contacts")
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return self.initialise(profile_key).addCallback(initialised)
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#TODO: we need to use the server corresponding the the host of the jid
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class GroupBlog_handler(XMPPHandler):
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implements(iwokkel.IDisco)
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def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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return [disco.DiscoFeature(NS_GROUPBLOG)]
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def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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return []
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