262 lines
11 KiB
Python
Executable file
262 lines
11 KiB
Python
Executable file
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# SAT plugin for microblogging over XMPP (xep-0277)
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# Copyright (C) 2009, 2010, 2011, 2012, 2013 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 Affero 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 Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from logging import debug, info, warning, error
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from twisted.words.protocols.jabber import jid
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from twisted.internet import defer
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from sat.core import exceptions
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from sat.tools.xml_tools import ElementParser
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from wokkel import pubsub
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from feed import atom
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import uuid
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from time import time
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import urlparse
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from cgi import escape
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NS_MICROBLOG = 'urn:xmpp:microblog:0'
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NS_XHTML = 'http://www.w3.org/1999/xhtml'
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PLUGIN_INFO = {
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"name": "Microblogging over XMPP Plugin",
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"import_name": "XEP-0277",
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"type": "XEP",
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"protocols": [],
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"dependencies": ["XEP-0163", "XEP-0060", "TEXT-SYNTAXES"],
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"main": "XEP_0277",
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"handler": "no",
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"description": _("""Implementation of microblogging Protocol""")
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}
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class NodeAccessChangeException(Exception):
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pass
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class XEP_0277(object):
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def __init__(self, host):
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info(_("Microblogging plugin initialization"))
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self.host = host
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self.host.plugins["XEP-0163"].addPEPEvent("MICROBLOG", NS_MICROBLOG, self.microblogCB, self.sendMicroblog)
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host.bridge.addMethod("getLastMicroblogs", ".plugin",
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in_sign='sis', out_sign='aa{ss}',
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method=self.getLastMicroblogs,
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async=True,
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doc={'summary': 'retrieve items',
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'param_0': 'jid: publisher of wanted microblog',
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'param_1': 'max_items: see XEP-0060 #6.5.7',
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'param_2': '%(doc_profile)s',
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'return': 'list of microblog data (dict)'})
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host.bridge.addMethod("setMicroblogAccess", ".plugin", in_sign='ss', out_sign='',
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method=self.setMicroblogAccess,
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async=True,
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doc={})
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def parseCommentUrl(self, node_url):
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parsed_url = urlparse.urlparse(node_url, 'xmpp')
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service = jid.JID(parsed_url.path)
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queries = parsed_url.query.split(';')
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parsed_queries = dict()
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for query in queries:
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parsed_queries.update(urlparse.parse_qs(query))
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node = parsed_queries.get('node',[''])[0]
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if not node:
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raise exceptions.DataError('Invalid comments link')
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return (service, node)
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@defer.inlineCallbacks
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def item2mbdata(self, item):
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"""Convert an XML Item to microblog data used in bridge API
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@param item: domish.Element of microblog item
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@return: microblog data (dictionary)"""
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try:
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entry_elt = [child for child in item.elements() if child.name == "entry"][0]
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except IndexError:
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warning(_('No entry element in microblog item'))
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raise exceptions.DataError('no entry found')
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_entry = atom.Entry().import_xml(entry_elt.toXml().encode('utf-8'))
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microblog_data = {}
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try:
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try:
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content_type =_entry.title.attrs['type'].lower()
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except KeyError:
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content_type = 'text'
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if content_type == 'xhtml':
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# TODO: proper check of body namespace
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microblog_data['xhtml'] = yield self.host.plugins["TEXT-SYNTAXES"].clean_xhtml(_entry.title.text)
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microblog_data['content'] = _entry.title.text # FIXME: must use text version of the microblog, or convert XHTML to text if not available
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else:
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microblog_data['content'] = _entry.title.text
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if len(_entry.authors):
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microblog_data['author'] = _entry.authors[0].name.text
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microblog_data['timestamp'] = str(int(_entry.updated.tf))
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microblog_data['id'] = item['id']
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for link in _entry.links:
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try:
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if link.attrs["title"] == "comments":
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microblog_data['comments'] = link.attrs["href"]
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service, node = self.parseCommentUrl(microblog_data["comments"])
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microblog_data['comments_service'] = service.full()
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microblog_data['comments_node'] = node
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break
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except (KeyError, exceptions.DataError, RuntimeError):
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warning("Can't parse link")
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continue
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except (AttributeError, KeyError):
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error(_('Error while parsing atom entry for microblogging event'))
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raise exceptions.DataError
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##XXX: workaround for Jappix behaviour
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if not 'author' in microblog_data:
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from xe import NestElement
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try:
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author = NestElement('author')
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author.import_xml(str(_entry))
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microblog_data['author'] = author.nick.text
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except:
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error(_('Cannot find author'))
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##end workaround Jappix
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defer.returnValue(microblog_data)
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def microblogCB(self, itemsEvent, profile):
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d = defer.Deferred()
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def manageItem(microblog_data):
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self.host.bridge.personalEvent(itemsEvent.sender.full(), "MICROBLOG", microblog_data, profile)
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for item in itemsEvent.items:
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d.addCallback(lambda ignore: self.item2mbdata(item))
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d.addCallback(manageItem)
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d.callback(None)
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return d
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@defer.inlineCallbacks
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def data2entry(self, data, profile):
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"""Convert a data dict to en entry usable to create an item
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@param data: data dict as given by bridge method
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@return: deferred which fire domish.Element"""
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_uuid = unicode(uuid.uuid1())
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_entry = atom.Entry()
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if "rich" in data:
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synt = self.host.plugins["TEXT-SYNTAXES"]
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converted = yield synt.convert(data['rich'], synt.getCurrentSyntax(profile), "XHTML")
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content = u'<div xmlns="%s">%s</div>' % (NS_XHTML, converted)
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_entry.title.attrs['type'] = 'xhtml'
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else:
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content = escape(data['content'])
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_entry.title.attrs['type'] = 'text'
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_entry.title = unicode(content).encode('utf-8')
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_entry.author = atom.Author()
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_entry.author.name = data.get('author', self.host.getJidNStream(profile)[0].userhost()).encode('utf-8')
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_entry.updated = float(data.get('timestamp', time()))
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_entry.id = str(_uuid)
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if 'comments' in data:
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link = atom.Link()
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link.attrs['href'] = data['comments']
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link.attrs['rel'] = 'replies'
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link.attrs['title'] = 'comments'
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_entry.links.append(link)
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_entry_elt = ElementParser()(str(_entry).decode('utf-8'))
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item = pubsub.Item(payload=_entry_elt)
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item['id'] = _uuid
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defer.returnValue(item)
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@defer.inlineCallbacks
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def sendMicroblog(self, data, profile):
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"""Send XEP-0277's microblog data
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@param data: must include content
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@param profile: profile which send the mood"""
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if 'content' not in data:
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error(_("Microblog data must contain at least 'content' key"))
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raise exceptions.DataError('no "content" key found')
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content = data['content']
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if not content:
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error(_("Microblog data's content value must not be empty"))
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raise exceptions.DataError('empty content')
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item = yield self.data2entry(data, profile)
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ret = yield self.host.plugins["XEP-0060"].publish(None, NS_MICROBLOG, [item], profile_key=profile)
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defer.returnValue(ret)
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def getLastMicroblogs(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
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@param profile_key: profile key
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"""
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def resultToArray(result):
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ret = []
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for (success, value) in result:
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if success:
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ret.append(value)
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else:
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error('Error while getting last microblog')
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return ret
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d = self.host.plugins["XEP-0060"].getItems(jid.JID(pub_jid), NS_MICROBLOG, max_items=max_items, profile_key=profile_key)
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d.addCallback(lambda items: defer.DeferredList(map(self.item2mbdata, items)))
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d.addCallback(resultToArray)
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return d
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def setMicroblogAccess(self, access="presence", profile_key='@DEFAULT@'):
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"""Create a microblog node on PEP with given access
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If the node already exists, it change options
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@param access: Node access model, according to xep-0060 #4.5
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@param profile_key: profile key"""
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_jid, xmlstream = self.host.getJidNStream(profile_key)
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if not _jid:
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error(_("Can't find profile's jid"))
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return
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C = self.host.plugins["XEP-0060"]
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_options = {C.OPT_ACCESS_MODEL: access, C.OPT_PERSIST_ITEMS: 1, C.OPT_MAX_ITEMS: -1, C.OPT_DELIVER_PAYLOADS: 1, C.OPT_SEND_ITEM_SUBSCRIBE: 1}
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def cb(result):
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#Node is created with right permission
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debug(_("Microblog node has now access %s") % access)
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def fatal_err(s_error):
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#Something went wrong
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error(_("Can't set microblog access"))
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raise NodeAccessChangeException()
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def err_cb(s_error):
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#If the node already exists, the condition is "conflict",
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#else we have an unmanaged error
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if s_error.value.condition == 'conflict':
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#d = self.host.plugins["XEP-0060"].deleteNode(_jid.userhostJID(), NS_MICROBLOG, profile_key=profile_key)
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#d.addCallback(lambda x: create_node().addCallback(cb).addErrback(fatal_err))
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change_node_options().addCallback(cb).addErrback(fatal_err)
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else:
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fatal_err(s_error)
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def create_node():
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return self.host.plugins["XEP-0060"].createNode(_jid.userhostJID(), NS_MICROBLOG, _options, profile_key=profile_key)
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def change_node_options():
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return self.host.plugins["XEP-0060"].setOptions(_jid.userhostJID(), NS_MICROBLOG, _jid.userhostJID(), _options, profile_key=profile_key)
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create_node().addCallback(cb).addErrback(err_cb)
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