Mercurial > libervia-backend
annotate src/plugins/plugin_misc_groupblog.py @ 310:53adec87d1d7
plugin group blog: group blog subscription
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Mon, 11 Apr 2011 12:47:35 +0200 |
| parents | ce3607b7198d |
| children | 0aa6ca6cdbdd |
| rev | line source |
|---|---|
| 307 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 """ | |
| 5 SAT plugin for microbloging with roster access | |
| 6 Copyright (C) 2009, 2010, 2011 Jérôme Poisson (goffi@goffi.org) | |
| 7 | |
| 8 This program is free software: you can redistribute it and/or modify | |
| 9 it under the terms of the GNU General Public License as published by | |
| 10 the Free Software Foundation, either version 3 of the License, or | |
| 11 (at your option) any later version. | |
| 12 | |
| 13 This program is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 GNU General Public License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 20 """ | |
| 21 | |
| 22 from logging import debug, info, error | |
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23 from twisted.internet import protocol, defer |
| 307 | 24 from twisted.words.protocols.jabber import jid |
| 25 from twisted.words.protocols.jabber import error as jab_error | |
| 26 import twisted.internet.error | |
| 27 from twisted.words.xish import domish | |
| 28 from sat.tools.xml_tools import ElementParser | |
| 29 | |
| 30 from wokkel import disco,pubsub | |
| 31 from feed.atom import Entry, Author | |
| 32 import uuid | |
| 33 from time import time | |
| 34 | |
| 35 MBLOG_COLLECTION = 'MBLOGCOLLECTION' | |
| 36 CONFIG_NODE = 'CONFIG' | |
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37 OPT_ACCESS_MODEL = 'pubsub#access_model' |
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38 OPT_PERSIST_ITEMS = 'pubsub#persist_items' |
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39 OPT_MAX_ITEMS = 'pubsub#max_items' |
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40 OPT_NODE_TYPE = 'pubsub#node_type' |
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41 OPT_SUBSCRIPTION_TYPE = 'pubsub#subscription_type' |
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42 OPT_SUBSCRIPTION_DEPTH = 'pubsub#subscription_depth' |
| 307 | 43 TYPE_COLLECTION = 'collection' |
| 44 | |
| 45 PLUGIN_INFO = { | |
| 46 "name": "Group blogging throught collections", | |
| 47 "import_name": "groupblog", | |
| 48 "type": "MISC", | |
| 49 "protocols": [], | |
| 50 "dependencies": ["XEP-0277"], | |
| 51 "main": "GroupBlog", | |
| 52 "handler": "no", | |
| 53 "description": _("""Implementation of microblogging with roster access""") | |
| 54 } | |
| 55 | |
| 56 class NodeCreationError(Exception): | |
| 57 pass | |
| 58 | |
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59 class NodeDeletionError(Exception): |
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60 pass |
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61 |
| 307 | 62 class GroupBlog(): |
| 63 """This class use a PubSub Collection to manage roster access on microblog""" | |
| 64 | |
| 65 def __init__(self, host): | |
| 66 info(_("Group blog plugin initialization")) | |
| 67 self.host = host | |
| 68 self._blog_nodes={} | |
| 69 | |
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70 host.bridge.addMethod("cleanBlogCollection", ".communication", in_sign='s', out_sign='', |
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71 method=self.cleanBlogCollection, |
| 307 | 72 doc = { |
| 73 }) | |
| 74 | |
| 75 host.bridge.addMethod("getMblogNodes", ".communication", in_sign='s', out_sign='a{sas}', | |
| 76 method=self.getMblogNodes, | |
| 77 async = True, | |
| 78 doc = { 'summary':"retrieve mblog node, and their association with roster's groups", | |
| 79 'param_0':'%(doc_profile)s', | |
| 80 'return':'list of microblog data (dict)' | |
| 81 }) | |
| 82 | |
| 83 host.bridge.addMethod("sendGroupBlog", ".communication", in_sign='asss', out_sign='', | |
| 84 method=self.sendGroupBlog, | |
| 85 doc = { 'summary':"Send a microblog to a list of groups", | |
| 86 'param_0':'list of groups which can read the microblog', | |
| 87 'param_1':'text to send', | |
| 88 'param_2':'%(doc_profile)s' | |
| 89 }) | |
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90 |
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91 host.bridge.addMethod("subscribeGroupBlog", ".communication", in_sign='ss', out_sign='', |
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92 method=self.subscribeGroupBlog, |
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93 doc = { 'summary':"Subscribe to the group blog of somebody", |
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94 'param_0':'jid of the group node published', |
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95 'param_1':'%(doc_profile)s' |
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96 }) |
| 307 | 97 |
| 98 def _getRootNode(self, entity): | |
| 99 return "%(entity)s_%(root_suff)s" % {'entity':entity.userhost(), 'root_suff':MBLOG_COLLECTION} | |
| 100 | |
| 101 def _getConfigNode(self, entity): | |
| 102 return "%(entity)s_%(root_suff)s" % {'entity':entity.userhost(), 'root_suff':CONFIG_NODE} | |
| 103 | |
| 104 def _configNodeCb(self, result, callback, profile): | |
| 105 self._blog_nodes[profile] = {} | |
| 106 for item in result: | |
| 107 node_ass = item.firstChildElement() | |
| 108 assert(node_ass.name == "node_association") | |
| 109 node = node_ass['node'] | |
| 110 groups = [unicode(group) for group in node_ass.children] | |
| 111 self._blog_nodes[profile][node] = groups | |
| 112 callback(self._blog_nodes[profile]) | |
| 113 | |
| 114 def _configNodeFail(self, failure, errback): | |
| 115 import pdb | |
| 116 pdb.set_trace() | |
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117 errback("") #FIXME |
| 307 | 118 |
| 119 def _configNodeErr(self, failure, user_jid, pubsub_ent, callback, errback, profile): | |
| 120 if failure.value.condition == 'item-not-found': | |
| 121 debug(_('Multiblog config node not found, creating it')) | |
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122 _options = {OPT_ACCESS_MODEL:"whitelist", OPT_PERSIST_ITEMS:1, OPT_MAX_ITEMS:-1} |
| 307 | 123 d = self.host.plugins["XEP-0060"].createNode(pubsub_ent, self._getConfigNode(user_jid), _options, profile_key=profile) |
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124 d.addCallback(lambda result: self._configNodeCb([] , callback, profile)) |
| 307 | 125 d.addErrback(self._configNodeFail, errback) |
| 126 else: | |
| 127 self._configNodeFail(failure, errback) | |
| 128 | |
| 129 def getMblogNodes(self, profile_key='@DEFAULT@', callback=None, errback=None): | |
| 130 debug(_('Getting mblog nodes')) | |
| 131 profile = self.host.memory.getProfileName(profile_key) | |
| 132 if not profile: | |
| 133 error(_("Unknown profile")) | |
| 134 return {} | |
| 135 | |
| 136 def after_init(ignore): | |
| 137 pubsub_ent = self.host.memory.getServerServiceEntity("pubsub", "service", profile) | |
| 138 _jid, xmlstream = self.host.getJidNStream(profile_key) | |
| 139 d = self.host.plugins["XEP-0060"].getItems(pubsub_ent, self._getConfigNode(_jid), profile_key=profile_key) | |
| 140 d.addCallbacks(self._configNodeCb, self._configNodeErr, callbackArgs=(callback, profile), errbackArgs=(_jid, pubsub_ent, callback, errback, profile)) | |
| 141 | |
| 142 client = self.host.getClient(profile) | |
| 143 if not client: | |
| 144 error(_('No client for this profile key: %s') % profile_key) | |
| 145 return | |
| 146 client.client_initialized.addCallback(after_init) | |
| 147 | |
| 148 def _publishMblog(self, name, message, pubsub_ent, profile): | |
| 149 """Actually publish the message on the group blog | |
| 150 @param name: name of the node where we publish | |
| 151 @param message: message to publish | |
| 152 @param pubsub_ent: entity of the publish-subscribe service | |
| 153 @param profile: profile of the owner of the group""" | |
| 154 mblog_item = self.host.plugins["XEP-0277"].data2entry({'content':message}, profile) | |
| 155 defer_blog = self.host.plugins["XEP-0060"].publish(pubsub_ent, name, items=[mblog_item], profile_key=profile) | |
| 156 defer_blog.addErrback(self._mblogPublicationFailed) | |
| 157 | |
| 158 def _groupNodeCreated(self, ignore, groups, name, message, user_jid, pubsub_ent, profile): | |
| 159 """A group node as been created, we need to add it to the configure node, and send the message to it | |
| 160 @param groups: list of groups authorized to subscribe to the node | |
| 161 @param name: unique name of the group | |
| 162 @param message: message to publish to the group | |
| 163 @param user_jid: jid of the owner of the node | |
| 164 @param pubsub_ent: entity of the publish-subscribe service | |
| 165 @param profile: profile of the owner of the group""" | |
| 166 config_node = self._getConfigNode(user_jid) | |
| 167 _payload = domish.Element(('','node_association')) | |
| 168 _payload['node'] = name | |
| 169 for group in groups: | |
| 170 _payload.addElement('group',content=group) | |
| 171 config_item = pubsub.Item(payload=_payload) | |
| 172 defer_config = self.host.plugins["XEP-0060"].publish(pubsub_ent, config_node, items=[config_item], profile_key=profile) | |
| 173 defer_config.addCallback(lambda x: debug(_("Configuration node updated"))) | |
| 174 defer_config.addErrback(self._configUpdateFailed) | |
| 175 | |
| 176 #Finally, we publish the message | |
| 177 self._publishMblog(name, message, pubsub_ent, profile) | |
| 178 | |
| 179 | |
| 180 def _mblogPublicationFailed(self, failure): | |
| 181 #TODO | |
| 182 import pdb | |
| 183 pdb.set_trace() | |
| 184 | |
| 185 def _configUpdateFailed(self, failure): | |
| 186 #TODO | |
| 187 import pdb | |
| 188 pdb.set_trace() | |
| 189 | |
| 190 def _nodeCreationFailed(self, failure, name, user_jid, groups, pubsub_ent, message, profile): | |
| 191 #TODO | |
| 192 if failure.value.condition == "item-not-found": | |
| 193 #The root node doesn't exists | |
| 194 def err_creating_root_node(failure): | |
| 195 msg = _("Can't create Root node") | |
| 196 error(msg) | |
| 197 raise NodeCreationError(msg) | |
| 198 | |
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199 _options = {OPT_NODE_TYPE:TYPE_COLLECTION} |
| 307 | 200 d = self.host.plugins["XEP-0060"].createNode(pubsub_ent, self._getRootNode(user_jid), _options, profile_key=profile) |
| 201 d.addCallback(self._createNode, name, user_jid, groups, pubsub_ent, message, profile) | |
| 202 d.addErrback(err_creating_root_node) | |
| 203 else: | |
| 204 import pdb | |
| 205 pdb.set_trace() | |
| 206 | |
| 207 def _createNode(self, ignore, name, user_jid, groups, pubsub_ent, message, profile): | |
| 208 """create a group microblog node | |
| 209 @param ignore: ignored param, necessary to be added as a deferred callback | |
| 210 @param name: name of the node | |
| 211 @param user_jid: jid of the user creating the node | |
| 212 @param groups: list of group than can subscribe to the node | |
| 213 @param pubsub_ent: publish/subscribe service's entity | |
| 214 @param message: message to publish | |
| 215 @param profile: profile of the user creating the node""" | |
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216 _options = {OPT_ACCESS_MODEL:"roster", OPT_PERSIST_ITEMS:1, OPT_MAX_ITEMS:-1, |
| 307 | 217 'pubsub#node_type':'leaf', 'pubsub#collection':self._getRootNode(user_jid), |
| 218 'pubsub#roster_groups_allowed':groups} | |
| 219 d = self.host.plugins["XEP-0060"].createNode(pubsub_ent, name, _options, profile_key=profile) | |
| 220 d.addCallback(self._groupNodeCreated, groups, name, message, user_jid, pubsub_ent, profile) | |
| 221 d.addErrback(self._nodeCreationFailed, name, user_jid, groups, pubsub_ent, message, profile) | |
| 222 | |
| 223 def _getNodeForGroups(self, groups, profile): | |
| 224 """Return node associated with the given list of groups | |
| 225 @param groups: list of groups | |
| 226 @param profile: profile of publisher""" | |
| 227 for node in self._blog_nodes[profile]: | |
| 228 node_groups = self._blog_nodes[profile][node] | |
| 229 if set(node_groups) == set(groups): | |
| 230 return node | |
| 231 return None | |
| 232 | |
| 233 def sendGroupBlog(self, groups, message, profile_key='@DEFAULT@'): | |
| 234 """Publish a microblog to the node associated to the groups | |
| 235 If the node doesn't exist, it is created, then the message is posted | |
| 236 @param groups: list of groups allowed to retrieve the microblog | |
| 237 @param message: microblog | |
| 238 @profile_key: %(doc_profile)s | |
| 239 """ | |
| 240 profile = self.host.memory.getProfileName(profile_key) | |
| 241 if not profile: | |
| 242 error(_("Unknown profile")) | |
| 243 return | |
| 244 | |
| 245 def after_init(ignore): | |
| 246 _groups = list(set(groups).intersection(client.roster.getGroups())) #We only keep group which actually exist | |
| 247 #TODO: send an error signal if user want to post to non existant groups | |
| 248 _groups.sort() | |
| 249 pubsub_ent = self.host.memory.getServerServiceEntity("pubsub", "service", profile) | |
| 250 for group in _groups: | |
| 251 _node = self._getNodeForGroups([group], profile) | |
| 252 if not _node: | |
| 253 _node_name = unicode(uuid.uuid4()) | |
| 254 self._createNode(None, _node_name, client.jid, [group], pubsub_ent, message, profile) | |
| 255 else: | |
| 256 self._publishMblog(_node, message, pubsub_ent, profile) | |
| 257 | |
| 258 client = self.host.getClient(profile) | |
| 259 if not client: | |
| 260 error(_('No client for this profile key: %s') % profile_key) | |
| 261 return | |
| 262 client.client_initialized.addCallback(after_init) | |
| 263 | |
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264 def _doCleaning(self, result, pubsub_ent, profile): |
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265 """Compare the node in config node, and the existing nodes, and delete unknown ones""" |
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266 #TODO: manage groups which don't exist anymore |
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267 assert(len(result)==2) |
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268 assert(result[0][0]==True and result[1][0]==True) |
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269 config_nodes = [item.firstChildElement()["node"] for item in result[0][1]] |
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270 existing_nodes = [item.nodeIdentifier for item in result[1][1]._items] |
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271 to_delete = set(config_nodes).symmetric_difference(existing_nodes) |
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272 def check_deletion(result): |
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273 for (success, value) in result: |
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274 if not success: |
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275 msg = _("Can't delete node") |
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276 error(msg) |
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277 raise NodeDeletionError(msg) |
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278 #TODO: log node which was not deleted |
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279 |
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280 |
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281 d = defer.DeferredList([self.host.plugins["XEP-0060"].deleteNode(pubsub_ent, node, profile) for node in to_delete]) |
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282 d.addCallback(check_deletion) |
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283 |
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284 def cleanBlogCollection(self, profile_key='@DEFAULT@'): |
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285 """Remove blog nodes not referenced in config node""" |
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286 debug(_('Getting mblog nodes')) |
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287 profile = self.host.memory.getProfileName(profile_key) |
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288 if not profile: |
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289 error(_("Unknown profile")) |
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290 return {} |
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291 |
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292 def after_init(ignore): |
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293 pubsub_ent = self.host.memory.getServerServiceEntity("pubsub", "service", profile) |
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294 _jid, xmlstream = self.host.getJidNStream(profile_key) |
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295 d_config = self.host.plugins["XEP-0060"].getItems(pubsub_ent, self._getConfigNode(_jid), profile_key=profile_key) |
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296 d_root = client.disco.requestItems(pubsub_ent, self._getRootNode(client.jid)) |
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297 defer.DeferredList([d_config, d_root]).addCallback(self._doCleaning, pubsub_ent, profile) |
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298 |
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299 client = self.host.getClient(profile) |
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300 if not client: |
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301 error(_('No client for this profile key: %s') % profile_key) |
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302 return |
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303 client.client_initialized.addCallback(after_init) |
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304 |
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305 def subscribeGroupBlog(self, pub_jid, profile_key='@DEFAULT@'): |
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306 debug(_('subscribing mblog nodes')) |
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307 _pub_jid = jid.JID(pub_jid) |
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308 profile = self.host.memory.getProfileName(profile_key) |
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309 if not profile: |
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310 error(_("Unknown profile")) |
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311 return |
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312 |
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313 def after_init(ignore): |
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314 pubsub_ent = self.host.memory.getServerServiceEntity("pubsub", "service", profile) |
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315 _options = {OPT_SUBSCRIPTION_TYPE:'items', OPT_SUBSCRIPTION_DEPTH:'1'} |
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316 d = self.host.plugins["XEP-0060"].subscribe(pubsub_ent, self._getRootNode(_pub_jid), options = _options, profile_key=profile) |
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317 d.addCallback(lambda x: debug(_("%(publisher)s's group node subscribed [%(profile)s]") % {'publisher':_pub_jid.userhost(), 'profile': profile})) |
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318 d.addErrback(lambda x: error(_("Can't subscribe group node [%(profile)s]") % {'profile': profile})) |
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319 |
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320 client = self.host.getClient(profile) |
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321 if not client: |
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322 error(_('No client for this profile key: %s') % profile_key) |
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323 return |
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324 client.client_initialized.addCallback(after_init) |