refactoring: renamed sat package to libervia.backend
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Goffi
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345 changed files with 1293 additions and 1293 deletions
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#!/usr/bin/env python3
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# SAT plugin for pubsub forums
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# Copyright (C) 2009-2021 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 sat.core.i18n import _
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from sat.core.constants import Const as C
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from sat.core import exceptions
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from sat.core.log import getLogger
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from sat.tools.common import uri, data_format
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from twisted.words.protocols.jabber import jid
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from twisted.words.xish import domish
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from twisted.internet import defer
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import shortuuid
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import json
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log = getLogger(__name__)
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NS_FORUMS = 'org.salut-a-toi.forums:0'
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NS_FORUMS_TOPICS = NS_FORUMS + '#topics'
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PLUGIN_INFO = {
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C.PI_NAME: _("forums management"),
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C.PI_IMPORT_NAME: "forums",
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C.PI_TYPE: "EXP",
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C.PI_PROTOCOLS: [],
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C.PI_DEPENDENCIES: ["XEP-0060", "XEP-0277"],
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C.PI_MAIN: "forums",
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C.PI_HANDLER: "no",
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C.PI_DESCRIPTION: _("""forums management plugin""")
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}
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FORUM_ATTR = {'title', 'name', 'main-language', 'uri'}
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FORUM_SUB_ELTS = ('short-desc', 'desc')
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FORUM_TOPICS_NODE_TPL = '{node}#topics_{uuid}'
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FORUM_TOPIC_NODE_TPL = '{node}_{uuid}'
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class forums(object):
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def __init__(self, host):
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log.info(_("forums plugin initialization"))
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self.host = host
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self._m = self.host.plugins['XEP-0277']
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self._p = self.host.plugins['XEP-0060']
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self._node_options = {
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self._p.OPT_ACCESS_MODEL: self._p.ACCESS_OPEN,
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self._p.OPT_PERSIST_ITEMS: 1,
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self._p.OPT_DELIVER_PAYLOADS: 1,
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self._p.OPT_SEND_ITEM_SUBSCRIBE: 1,
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self._p.OPT_PUBLISH_MODEL: self._p.ACCESS_OPEN,
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}
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host.register_namespace('forums', NS_FORUMS)
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host.bridge.add_method("forums_get", ".plugin",
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in_sign='ssss', out_sign='s',
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method=self._get,
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async_=True)
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host.bridge.add_method("forums_set", ".plugin",
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in_sign='sssss', out_sign='',
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method=self._set,
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async_=True)
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host.bridge.add_method("forum_topics_get", ".plugin",
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in_sign='ssa{ss}s', out_sign='(aa{ss}s)',
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method=self._get_topics,
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async_=True)
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host.bridge.add_method("forum_topic_create", ".plugin",
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in_sign='ssa{ss}s', out_sign='',
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method=self._create_topic,
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async_=True)
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@defer.inlineCallbacks
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def _create_forums(self, client, forums, service, node, forums_elt=None, names=None):
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"""Recursively create <forums> element(s)
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@param forums(list): forums which may have subforums
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@param service(jid.JID): service where the new nodes will be created
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@param node(unicode): node of the forums
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will be used as basis for the newly created nodes
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@param parent_elt(domish.Element, None): element where the forum must be added
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if None, the root <forums> element will be created
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@return (domish.Element): created forums
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"""
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if not isinstance(forums, list):
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raise ValueError(_("forums arguments must be a list of forums"))
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if forums_elt is None:
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forums_elt = domish.Element((NS_FORUMS, 'forums'))
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assert names is None
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names = set()
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else:
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if names is None or forums_elt.name != 'forums':
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raise exceptions.InternalError('invalid forums or names')
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assert names is not None
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for forum in forums:
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if not isinstance(forum, dict):
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raise ValueError(_("A forum item must be a dictionary"))
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forum_elt = forums_elt.addElement('forum')
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for key, value in forum.items():
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if key == 'name' and key in names:
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raise exceptions.ConflictError(_("following forum name is not unique: {name}").format(name=key))
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if key == 'uri' and not value.strip():
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log.info(_("creating missing forum node"))
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forum_node = FORUM_TOPICS_NODE_TPL.format(node=node, uuid=shortuuid.uuid())
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yield self._p.createNode(client, service, forum_node, self._node_options)
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value = uri.build_xmpp_uri('pubsub',
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path=service.full(),
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node=forum_node)
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if key in FORUM_ATTR:
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forum_elt[key] = value.strip()
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elif key in FORUM_SUB_ELTS:
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forum_elt.addElement(key, content=value)
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elif key == 'sub-forums':
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sub_forums_elt = forum_elt.addElement('forums')
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yield self._create_forums(client, value, service, node, sub_forums_elt, names=names)
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else:
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log.warning(_("Unknown forum attribute: {key}").format(key=key))
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if not forum_elt.getAttribute('title'):
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name = forum_elt.getAttribute('name')
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if name:
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forum_elt['title'] = name
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else:
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raise ValueError(_("forum need a title or a name"))
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if not forum_elt.getAttribute('uri') and not forum_elt.children:
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raise ValueError(_("forum need uri or sub-forums"))
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defer.returnValue(forums_elt)
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def _parse_forums(self, parent_elt=None, forums=None):
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"""Recursivly parse a <forums> elements and return corresponding forums data
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@param item(domish.Element): item with <forums> element
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@param parent_elt(domish.Element, None): element to parse
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@return (list): parsed data
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@raise ValueError: item is invalid
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"""
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if parent_elt.name == 'item':
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forums = []
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try:
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forums_elt = next(parent_elt.elements(NS_FORUMS, 'forums'))
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except StopIteration:
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raise ValueError(_("missing <forums> element"))
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else:
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forums_elt = parent_elt
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if forums is None:
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raise exceptions.InternalError('expected forums')
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if forums_elt.name != 'forums':
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raise ValueError(_('Unexpected element: {xml}').format(xml=forums_elt.toXml()))
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for forum_elt in forums_elt.elements():
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if forum_elt.name == 'forum':
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data = {}
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for attrib in FORUM_ATTR.intersection(forum_elt.attributes):
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data[attrib] = forum_elt[attrib]
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unknown = set(forum_elt.attributes).difference(FORUM_ATTR)
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if unknown:
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log.warning(_("Following attributes are unknown: {unknown}").format(unknown=unknown))
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for elt in forum_elt.elements():
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if elt.name in FORUM_SUB_ELTS:
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data[elt.name] = str(elt)
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elif elt.name == 'forums':
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sub_forums = data['sub-forums'] = []
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self._parse_forums(elt, sub_forums)
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if not 'title' in data or not {'uri', 'sub-forums'}.intersection(data):
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log.warning(_("invalid forum, ignoring: {xml}").format(xml=forum_elt.toXml()))
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else:
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forums.append(data)
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else:
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log.warning(_("unkown forums sub element: {xml}").format(xml=forum_elt))
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return forums
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def _get(self, service=None, node=None, forums_key=None, profile_key=C.PROF_KEY_NONE):
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client = self.host.get_client(profile_key)
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if service.strip():
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service = jid.JID(service)
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else:
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service = None
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if not node.strip():
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node = None
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d = defer.ensureDeferred(self.get(client, service, node, forums_key or None))
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d.addCallback(lambda data: json.dumps(data))
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return d
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async def get(self, client, service=None, node=None, forums_key=None):
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if service is None:
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service = client.pubsub_service
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if node is None:
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node = NS_FORUMS
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if forums_key is None:
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forums_key = 'default'
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items_data = await self._p.get_items(client, service, node, item_ids=[forums_key])
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item = items_data[0][0]
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# we have the item and need to convert it to json
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forums = self._parse_forums(item)
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return forums
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def _set(self, forums, service=None, node=None, forums_key=None, profile_key=C.PROF_KEY_NONE):
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client = self.host.get_client(profile_key)
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forums = json.loads(forums)
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if service.strip():
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service = jid.JID(service)
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else:
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service = None
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if not node.strip():
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node = None
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return defer.ensureDeferred(
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self.set(client, forums, service, node, forums_key or None)
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)
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async def set(self, client, forums, service=None, node=None, forums_key=None):
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"""Create or replace forums structure
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@param forums(list): list of dictionary as follow:
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a dictionary represent a forum metadata, with the following keys:
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- title: title of the forum
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- name: short name (unique in those forums) for the forum
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- main-language: main language to be use in the forums
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- uri: XMPP uri to the microblog node hosting the forum
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- short-desc: short description of the forum (in main-language)
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- desc: long description of the forum (in main-language)
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- sub-forums: a list of sub-forums with the same structure
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title or name is needed, and uri or sub-forums
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@param forums_key(unicode, None): key (i.e. item id) of the forums
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may be used to store different forums structures for different languages
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None to use "default"
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"""
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if service is None:
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service = client.pubsub_service
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if node is None:
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node = NS_FORUMS
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if forums_key is None:
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forums_key = 'default'
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forums_elt = await self._create_forums(client, forums, service, node)
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return await self._p.send_item(
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client, service, node, forums_elt, item_id=forums_key
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)
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def _get_topics(self, service, node, extra=None, profile_key=C.PROF_KEY_NONE):
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client = self.host.get_client(profile_key)
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extra = self._p.parse_extra(extra)
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d = defer.ensureDeferred(
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self.get_topics(
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client, jid.JID(service), node, rsm_request=extra.rsm_request,
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extra=extra.extra
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)
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)
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d.addCallback(
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lambda topics_data: (topics_data[0], data_format.serialise(topics_data[1]))
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)
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return d
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async def get_topics(self, client, service, node, rsm_request=None, extra=None):
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"""Retrieve topics data
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Topics are simple microblog URIs with some metadata duplicated from first post
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"""
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topics_data = await self._p.get_items(
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client, service, node, rsm_request=rsm_request, extra=extra
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)
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topics = []
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item_elts, metadata = topics_data
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for item_elt in item_elts:
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topic_elt = next(item_elt.elements(NS_FORUMS, 'topic'))
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title_elt = next(topic_elt.elements(NS_FORUMS, 'title'))
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topic = {'uri': topic_elt['uri'],
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'author': topic_elt['author'],
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'title': str(title_elt)}
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topics.append(topic)
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return (topics, metadata)
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def _create_topic(self, service, node, mb_data, profile_key):
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client = self.host.get_client(profile_key)
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return defer.ensureDeferred(
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self.create_topic(client, jid.JID(service), node, mb_data)
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)
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async def create_topic(self, client, service, node, mb_data):
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try:
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title = mb_data['title']
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content = mb_data.pop('content')
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except KeyError as e:
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raise exceptions.DataError("missing mandatory data: {key}".format(key=e.args[0]))
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else:
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mb_data["content_rich"] = content
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topic_node = FORUM_TOPIC_NODE_TPL.format(node=node, uuid=shortuuid.uuid())
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await self._p.createNode(client, service, topic_node, self._node_options)
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await self._m.send(client, mb_data, service, topic_node)
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topic_uri = uri.build_xmpp_uri('pubsub',
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subtype='microblog',
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path=service.full(),
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node=topic_node)
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topic_elt = domish.Element((NS_FORUMS, 'topic'))
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topic_elt['uri'] = topic_uri
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topic_elt['author'] = client.jid.userhost()
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topic_elt.addElement('title', content = title)
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await self._p.send_item(client, service, node, topic_elt)
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