Mercurial > libervia-pubsub
annotate sat_pubsub/schema.py @ 414:ccb2a22ea0fc
Python 3 port:
/!\ Python 3.6+ is now needed to use SàT Pubsub
/!\ instability may occur and features may not be working anymore, this will improve with time
The same procedure as in backend has been applied (check backend commit ab2696e34d29 logs
for details).
Python minimal version has been updated in setup.py
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 16 Aug 2019 12:53:33 +0200 |
| parents | c56a728412f1 |
| children |
| rev | line source |
|---|---|
| 414 | 1 #!/usr/bin/env python3 |
| 352 | 2 #-*- coding: utf-8 -*- |
| 3 # | |
| 4 # Copyright (c) 2015 Jérôme Poisson | |
| 5 | |
| 6 | |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 # --- | |
| 21 | |
| 22 # This module implements node schema | |
| 23 | |
| 24 from twisted.words.protocols.jabber import jid | |
| 25 from twisted.words.xish import domish | |
| 26 from wokkel import disco, iwokkel | |
| 27 from wokkel.iwokkel import IPubSubService | |
| 28 from wokkel.subprotocols import XMPPHandler, IQHandlerMixin | |
| 29 from wokkel import data_form, pubsub | |
| 414 | 30 from zope.interface import implementer |
| 352 | 31 from sat_pubsub import const |
| 32 | |
| 33 QUERY_SCHEMA = "/pubsub[@xmlns='" + const.NS_SCHEMA + "']" | |
| 34 | |
| 35 | |
| 414 | 36 @implementer(iwokkel.IDisco) |
| 352 | 37 class SchemaHandler(XMPPHandler, IQHandlerMixin): |
| 38 iqHandlers = {"/iq[@type='get']" + QUERY_SCHEMA: 'onSchemaGet', | |
| 39 "/iq[@type='set']" + QUERY_SCHEMA: 'onSchemaSet'} | |
| 40 | |
| 41 def __init__(self): | |
| 42 super(SchemaHandler, self).__init__() | |
| 43 self.pubsub_service = None | |
| 44 | |
| 45 def connectionInitialized(self): | |
| 46 for handler in self.parent.handlers: | |
| 47 if IPubSubService.providedBy(handler): | |
| 48 self.pubsub_service = handler | |
| 49 break | |
| 50 self.backend = self.parent.parent.getServiceNamed('backend') | |
| 51 self.xmlstream.addObserver("/iq[@type='get' or @type='set']" + QUERY_SCHEMA, self.handleRequest) | |
| 52 | |
| 53 def _getNodeSchemaCb(self, x_elt, nodeIdentifier): | |
| 54 schema_elt = domish.Element((const.NS_SCHEMA, 'schema')) | |
| 55 schema_elt['node'] = nodeIdentifier | |
| 56 if x_elt is not None: | |
| 414 | 57 assert x_elt.uri == 'jabber:x:data' |
| 352 | 58 schema_elt.addChild(x_elt) |
| 59 return schema_elt | |
| 60 | |
| 61 def onSchemaGet(self, iq_elt): | |
| 62 try: | |
| 63 schema_elt = next(iq_elt.pubsub.elements(const.NS_SCHEMA, 'schema')) | |
| 64 nodeIdentifier = schema_elt['node'] | |
| 65 except StopIteration: | |
| 66 raise pubsub.BadRequest(text='missing schema element') | |
| 67 except KeyError: | |
| 68 raise pubsub.BadRequest(text='missing node') | |
| 69 pep = iq_elt.delegated | |
| 70 recipient = jid.JID(iq_elt['to']) | |
| 71 d = self.backend.getNodeSchema(nodeIdentifier, | |
| 72 pep, | |
| 73 recipient) | |
| 74 d.addCallback(self._getNodeSchemaCb, nodeIdentifier) | |
| 75 return d.addErrback(self.pubsub_service.resource._mapErrors) | |
| 76 | |
| 77 def onSchemaSet(self, iq_elt): | |
| 78 try: | |
| 79 schema_elt = next(iq_elt.pubsub.elements(const.NS_SCHEMA, 'schema')) | |
| 80 nodeIdentifier = schema_elt['node'] | |
| 81 except StopIteration: | |
| 82 raise pubsub.BadRequest(text='missing schema element') | |
| 83 except KeyError: | |
| 84 raise pubsub.BadRequest(text='missing node') | |
| 85 requestor = jid.JID(iq_elt['from']) | |
| 86 pep = iq_elt.delegated | |
| 87 recipient = jid.JID(iq_elt['to']) | |
|
361
a92f482ff14f
schema: allow free FORM_TYPE as this is used for items validation, and should not be in schema namespace
Goffi <goffi@goffi.org>
parents:
352
diff
changeset
|
88 try: |
| 414 | 89 x_elt = next(schema_elt.elements(data_form.NS_X_DATA, 'x')) |
|
361
a92f482ff14f
schema: allow free FORM_TYPE as this is used for items validation, and should not be in schema namespace
Goffi <goffi@goffi.org>
parents:
352
diff
changeset
|
90 except StopIteration: |
| 352 | 91 # no schema form has been found |
| 92 x_elt = None | |
| 93 d = self.backend.setNodeSchema(nodeIdentifier, | |
| 94 x_elt, | |
| 95 requestor, | |
| 96 pep, | |
| 97 recipient) | |
| 98 return d.addErrback(self.pubsub_service.resource._mapErrors) | |
| 99 | |
| 100 def getDiscoInfo(self, requestor, service, nodeIdentifier=''): | |
| 101 return [disco.DiscoFeature(const.NS_SCHEMA)] | |
| 102 | |
| 103 def getDiscoItems(self, requestor, service, nodeIdentifier=''): | |
| 104 return [] |