Mercurial > libervia-pubsub
annotate sat_pubsub/pubsub_admin.py @ 405:c56a728412f1
file organisation + setup refactoring:
- `/src` has been renamed to `/sat_pubsub`, this is the recommended naming convention
- revamped `setup.py` on the basis of SàT's `setup.py`
- added a `VERSION` which is the unique place where version number will now be set
- use same trick as in SàT to specify dev version (`D` at the end)
- use setuptools_scm to retrieve Mercurial hash when in dev version
author | Goffi <goffi@goffi.org> |
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date | Fri, 16 Aug 2019 12:00:02 +0200 |
parents | src/pubsub_admin.py@1d2222a91e6b |
children | ccb2a22ea0fc |
rev | line source |
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1 #!/usr/bin/python |
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2 #-*- coding: utf-8 -*- |
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3 |
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4 # Copyright (c) 2019 Jérôme Poisson |
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5 # |
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6 # This program is free software: you can redistribute it and/or modify |
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7 # it under the terms of the GNU Affero General Public License as published by |
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8 # the Free Software Foundation, either version 3 of the License, or |
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9 # (at your option) any later version. |
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10 # |
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11 # This program is distributed in the hope that it will be useful, |
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 # GNU Affero General Public License for more details. |
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15 # |
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16 # You should have received a copy of the GNU Affero General Public License |
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 |
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19 """ |
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20 Pubsub Admin experimental protocol implementation |
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21 |
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22 """ |
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23 |
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24 from zope.interface import implements |
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25 from twisted.python import log |
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26 from twisted.internet import defer |
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27 from twisted.words.protocols.jabber import jid, error as jabber_error, xmlstream |
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28 from sat_pubsub import error |
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29 from wokkel.subprotocols import XMPPHandler |
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30 from wokkel import disco, iwokkel, pubsub |
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31 |
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32 NS_PUBSUB_ADMIN = u"https://salut-a-toi.org/spec/pubsub_admin:0" |
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33 ADMIN_REQUEST = '/iq[@type="set"]/admin[@xmlns="{}"]'.format(NS_PUBSUB_ADMIN) |
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34 |
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35 |
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36 class PubsubAdminHandler(XMPPHandler): |
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37 implements(iwokkel.IDisco) |
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38 |
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39 def __init__(self, backend): |
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40 super(PubsubAdminHandler, self).__init__() |
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41 self.backend = backend |
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42 |
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43 def connectionInitialized(self): |
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44 self.xmlstream.addObserver(ADMIN_REQUEST, self.onAdminRequest) |
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45 |
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46 def sendError(self, iq_elt, condition=u'bad-request'): |
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47 stanza_error = jabber_error.StanzaError(condition) |
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48 iq_error = stanza_error.toResponse(iq_elt) |
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49 self.parent.xmlstream.send(iq_error) |
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50 |
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51 @defer.inlineCallbacks |
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52 def onAdminRequest(self, iq_elt): |
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53 """Pubsub Admin request received""" |
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54 iq_elt.handled = True |
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55 try: |
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56 pep = bool(iq_elt.delegated) |
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57 except AttributeError: |
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58 pep = False |
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59 |
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60 # is the sender really an admin? |
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61 admins = self.backend.config[u'admins_jids_list'] |
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62 from_jid = jid.JID(iq_elt[u'from']) |
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63 if from_jid.userhostJID() not in admins: |
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64 log.msg("WARNING: admin request done by non admin entity {from_jid}" |
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65 .format(from_jid=from_jid.full())) |
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66 self.sendError(iq_elt, u'forbidden') |
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67 return |
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68 |
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69 # alright, we can proceed |
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70 recipient = jid.JID(iq_elt[u'to']) |
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71 admin_elt = iq_elt.admin |
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72 try: |
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73 pubsub_elt = next(admin_elt.elements(pubsub.NS_PUBSUB, u'pubsub')) |
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74 publish_elt = next(pubsub_elt.elements(pubsub.NS_PUBSUB, u'publish')) |
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75 except StopIteration: |
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76 self.sendError(iq_elt) |
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77 return |
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78 try: |
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79 node = publish_elt[u'node'] |
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80 except KeyError: |
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81 self.sendError(iq_elt) |
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82 return |
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83 |
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84 # we prepare the result IQ request, we will fill it with item ids |
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85 iq_result_elt = xmlstream.toResponse(iq_elt, u'result') |
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86 result_admin_elt = iq_result_elt.addElement((NS_PUBSUB_ADMIN, u'admin')) |
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87 result_pubsub_elt = result_admin_elt.addElement((pubsub.NS_PUBSUB, u'pubsub')) |
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88 result_publish_elt = result_pubsub_elt.addElement(u'publish') |
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89 result_publish_elt[u'node'] = node |
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90 |
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91 # now we can send the items |
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92 for item in publish_elt.elements(pubsub.NS_PUBSUB, u'item'): |
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93 try: |
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94 requestor = jid.JID(item.attributes.pop(u'publisher')) |
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95 except Exception as e: |
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96 log.msg(u"WARNING: invalid jid in publisher ({requestor}): {msg}" |
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97 .format(requestor=requestor, msg=e)) |
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98 self.sendError(iq_elt) |
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99 return |
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100 except KeyError: |
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101 requestor = from_jid |
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102 |
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103 # we don't use a DeferredList because we want to be sure that |
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104 # each request is done in order |
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105 try: |
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106 payload = yield self.backend.publish( |
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107 nodeIdentifier=node, |
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108 items=[item], |
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109 requestor=requestor, |
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110 pep=pep, |
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111 recipient=recipient) |
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112 except (error.Forbidden, error.ItemForbidden): |
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113 __import__('pudb').set_trace() |
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114 self.sendError(iq_elt, u"forbidden") |
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115 return |
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116 except Exception as e: |
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117 self.sendError(iq_elt, u"internal-server-error") |
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118 log.msg(u"INTERNAL ERROR: {msg}".format(msg=e)) |
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119 return |
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120 |
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121 result_item_elt = result_publish_elt.addElement(u'item') |
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122 # either the id was given and it is available in item |
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123 # either it's a new item, and we can retrieve it from return payload |
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124 try: |
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125 result_item_elt[u'id'] = item[u'id'] |
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126 except KeyError: |
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127 result_item_elt = payload.publish.item[u'id'] |
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128 |
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129 self.xmlstream.send(iq_result_elt) |
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130 |
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131 def getDiscoInfo(self, requestor, service, nodeIdentifier=''): |
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132 return [disco.DiscoFeature(NS_PUBSUB_ADMIN)] |
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133 |
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134 def getDiscoItems(self, requestor, service, nodeIdentifier=''): |
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135 return [] |