Mercurial > libervia-pubsub
annotate idavoll/pubsub.py @ 16:ce3d0db64da1
Implemented basic subscribing.
Reply with internal-server-error when an unhandled exception is encountered.
Add special pubsub#errors elements to a few error replies.
Announce supported feature pubsub#persistent-items.
| author | Ralph Meijer <ralphm@ik.nu> |
|---|---|
| date | Sat, 17 Jul 2004 22:08:28 +0000 |
| parents | d45e921a5d2a |
| children | 7937d6fbbe2a |
| rev | line source |
|---|---|
| 1 | 1 from twisted.protocols.jabber import component,jid |
| 2 | 2 from twisted.xish import utility, domish |
| 1 | 3 from twisted.python import components |
| 4 import backend | |
| 5 import xmpp_error | |
| 6 | |
| 2 | 7 NS_COMPONENT = 'jabber:component:accept' |
| 8 NS_PUBSUB = 'http://jabber.org/protocol/pubsub' | |
| 9 NS_PUBSUB_EVENT = NS_PUBSUB + '#event' | |
| 16 | 10 NS_PUBSUB_ERRORS = NS_PUBSUB + '#errors' |
| 2 | 11 |
| 1 | 12 IQ_GET = '/iq[@type="get"]' |
| 13 IQ_SET = '/iq[@type="set"]' | |
| 2 | 14 PUBSUB_ELEMENT = '/pubsub[@xmlns="' + NS_PUBSUB + '"]' |
| 15 PUBSUB_GET = IQ_GET + PUBSUB_ELEMENT | |
| 16 PUBSUB_SET = IQ_SET + PUBSUB_ELEMENT | |
| 1 | 17 PUBSUB_CREATE = PUBSUB_SET + '/create' |
| 18 PUBSUB_PUBLISH = PUBSUB_SET + '/publish' | |
| 16 | 19 PUBSUB_SUBSCRIBE = PUBSUB_SET + '/subscribe' |
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20 PUBSUB_OPTIONS_GET = PUBSUB_GET + '/options' |
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21 PUBSUB_CONFIGURE_GET = PUBSUB_GET + '/configure' |
| 1 | 22 |
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23 error_map = { |
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24 backend.NotAuthorized: 'not-authorized', |
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25 backend.NodeNotFound: 'item-not-found', |
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26 backend.NoPayloadAllowed: 'bad-request', |
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27 backend.PayloadExpected: 'bad-request', |
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28 } |
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29 |
| 1 | 30 class ComponentServiceFromBackend(component.Service, utility.EventDispatcher): |
| 31 | |
| 32 def __init__(self, backend): | |
| 33 utility.EventDispatcher.__init__(self) | |
| 34 self.backend = backend | |
| 2 | 35 self.backend.pubsub_service = self |
| 1 | 36 self.addObserver(PUBSUB_PUBLISH, self.onPublish) |
| 16 | 37 self.addObserver(PUBSUB_SUBSCRIBE, self.onSubscribe) |
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parents:
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changeset
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38 self.addObserver(PUBSUB_OPTIONS_GET, self.onOptionsGet) |
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a8cfb31dc50c
Implemented fallback for feature-not-implemented.
Ralph Meijer <ralphm@ik.nu>
parents:
4
diff
changeset
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39 self.addObserver(PUBSUB_CONFIGURE_GET, self.onConfigureGet) |
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a8cfb31dc50c
Implemented fallback for feature-not-implemented.
Ralph Meijer <ralphm@ik.nu>
parents:
4
diff
changeset
|
40 self.addObserver(PUBSUB_GET, self.notImplemented, -1) |
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a8cfb31dc50c
Implemented fallback for feature-not-implemented.
Ralph Meijer <ralphm@ik.nu>
parents:
4
diff
changeset
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41 self.addObserver(PUBSUB_SET, self.notImplemented, -1) |
| 1 | 42 |
| 43 def componentConnected(self, xmlstream): | |
| 44 xmlstream.addObserver(PUBSUB_SET, self.onPubSub) | |
| 45 xmlstream.addObserver(PUBSUB_GET, self.onPubSub) | |
| 46 | |
| 9 | 47 def getIdentities(self, node): |
| 48 results = [] | |
| 49 if not node: | |
| 50 results.append({ | |
| 51 'category': 'pubsub', | |
| 52 'type': 'generic', | |
| 53 'name': 'Generic Pubsub Service' | |
| 54 }) | |
| 55 return results | |
| 56 | |
| 12 | 57 def getFeatures(self, node): |
| 58 return [ | |
| 59 "http://jabber.org/protocol/pubsub#outcast-affil", | |
| 60 "http://jabber.org/protocol/pubsub#publisher-affil", | |
| 16 | 61 "http://jabber.org/protocol/pubsub#persistent-items", |
| 12 | 62 ] |
| 63 | |
| 1 | 64 def error(self, failure, iq): |
| 16 | 65 try: |
| 66 r = failure.trap(*error_map.keys()) | |
| 67 xmpp_error.error_from_iq(iq, error_map[r], failure.value.msg) | |
| 68 return iq | |
| 69 except: | |
| 70 xmpp_error.error_from_iq(iq, 'internal-server-error') | |
| 71 self.send(iq) | |
| 72 raise | |
| 1 | 73 |
| 74 def success(self, result, iq): | |
| 75 iq.swapAttributeValues("to", "from") | |
| 76 iq["type"] = 'result' | |
| 77 iq.children = [] | |
| 78 return iq | |
| 79 | |
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parents:
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diff
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80 def notImplemented(self, iq): |
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parents:
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81 self.send(xmpp_error.error_from_iq(iq, 'feature-not-implemented')) |
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a8cfb31dc50c
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parents:
4
diff
changeset
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82 |
| 1 | 83 def onPubSub(self, iq): |
| 84 self.dispatch(iq) | |
| 85 iq.handled = True | |
| 86 | |
| 87 def onPublish(self, iq): | |
| 88 node = iq.pubsub.publish["node"] | |
| 89 | |
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90 items = [] |
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91 for child in iq.pubsub.publish.children: |
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92 if child.__class__ == domish.Element and child.name == 'item': |
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93 items.append(child) |
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parents:
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94 |
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95 print items |
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parents:
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96 |
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ea195dc1732d
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parents:
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changeset
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97 d = self.backend.do_publish(node, jid.JID(iq["from"]).userhost(), items) |
| 1 | 98 d.addCallback(self.success, iq) |
| 99 d.addErrback(self.error, iq) | |
| 100 d.addCallback(self.send) | |
| 101 | |
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a8cfb31dc50c
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Ralph Meijer <ralphm@ik.nu>
parents:
4
diff
changeset
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102 def onOptionsGet(self, iq): |
| 16 | 103 xmpp_error.error_from_iq(iq, 'feature-not-implemented') |
| 104 iq.error.addElement((NS_PUBSUB_ERRORS, 'subscription-options-unavailable'), NS_PUBSUB_ERRORS) | |
| 105 self.send(iq) | |
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a8cfb31dc50c
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Ralph Meijer <ralphm@ik.nu>
parents:
4
diff
changeset
|
106 |
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a8cfb31dc50c
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Ralph Meijer <ralphm@ik.nu>
parents:
4
diff
changeset
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107 def onConfigureGet(self, iq): |
| 16 | 108 xmpp_error.error_from_iq(iq, 'feature-not-implemented') |
| 109 iq.error.addElement((NS_PUBSUB_ERRORS, 'node-not-configurable'), NS_PUBSUB_ERRORS) | |
| 110 self.send(iq) | |
| 111 | |
| 112 def onSubscribe(self, iq): | |
| 113 node_id = iq.pubsub.subscribe["node"] | |
| 114 subscriber = jid.JID(iq.pubsub.subscribe["jid"]) | |
| 115 requestor = jid.JID(iq["from"]).userhostJID() | |
| 116 d = self.backend.do_subscribe(node_id, subscriber, requestor) | |
| 117 d.addCallback(self.return_subscription, iq) | |
| 118 d.addErrback(self.error, iq) | |
| 119 d.addCallback(self.send) | |
| 120 | |
| 121 def return_subscription(self, result, iq): | |
| 122 reply = self.success(result, iq) | |
| 123 entity = reply.addElement("entity") | |
| 124 entity["node"] = result["node"] | |
| 125 entity["jid"] = result["jid"].full() | |
| 126 entity["affiliation"] = result["affiliation"] | |
| 127 entity["subscription"] = result["subscription"] | |
| 128 return iq | |
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a8cfb31dc50c
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Ralph Meijer <ralphm@ik.nu>
parents:
4
diff
changeset
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129 |
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parents:
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130 def do_notification(self, list, node): |
| 1 | 131 |
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parents:
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132 for recipient, items in list.items(): |
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parents:
2
diff
changeset
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133 self.notify(node, items, recipient) |
| 2 | 134 |
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parents:
2
diff
changeset
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135 def notify(self, node, itemlist, recipient): |
| 2 | 136 message = domish.Element((NS_COMPONENT, "message")) |
| 137 message["from"] = self.parent.jabberId | |
| 138 message["to"] = recipient | |
| 139 x = message.addElement((NS_PUBSUB_EVENT, "x"), NS_PUBSUB_EVENT) | |
| 140 items = x.addElement("items") | |
| 141 items["node"] = node | |
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142 items.children.extend(itemlist) |
| 2 | 143 self.send(message) |
| 144 | |
| 1 | 145 """ |
| 146 def onCreateSet(self, iq): | |
| 147 node = iq.pubsub.create["node"] | |
| 148 owner = jid.JID(iq["from"]).userhost() | |
| 149 | |
| 150 try: | |
| 151 node = self.backend.create_node(node, owner) | |
| 152 | |
| 153 if iq.pubsub.create["node"] == None: | |
| 154 # also show node name | |
| 155 except: | |
| 156 pass | |
| 157 | |
| 158 iq.handled = True | |
| 159 """ | |
| 160 | |
| 161 components.registerAdapter(ComponentServiceFromBackend, backend.IBackendService, component.IService) | |
| 162 |