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plugins/mod_pubsub.lua @ 3697:67c01f75af97
mod_pubsub: Use pubsub_error_reply everywhere
author | Florian Zeitz <florob@babelmonkeys.de> |
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date | Fri, 03 Dec 2010 16:36:13 +0100 |
parent | 3672:b24db47995ac |
child | 3698:77171fd1dc3c |
rev | line source |
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3619 | 1 local pubsub = require "util.pubsub"; |
2 local st = require "util.stanza"; | |
3 local jid_bare = require "util.jid".bare; | |
4 local uuid_generate = require "util.uuid".generate; | |
5 | |
6 require "core.modulemanager".load(module.host, "iq"); | |
7 | |
8 local xmlns_pubsub = "http://jabber.org/protocol/pubsub"; | |
9 local xmlns_pubsub_errors = "http://jabber.org/protocol/pubsub#errors"; | |
10 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event"; | |
11 | |
12 local service; | |
13 | |
14 local handlers = {}; | |
15 | |
16 function handle_pubsub_iq(event) | |
17 local origin, stanza = event.origin, event.stanza; | |
18 local pubsub = stanza.tags[1]; | |
19 local action = pubsub.tags[1]; | |
20 local handler = handlers[stanza.attr.type.."_"..action.name]; | |
21 if handler then | |
22 handler(origin, stanza, action); | |
23 return true; | |
24 end | |
25 end | |
26 | |
27 local pubsub_errors = { | |
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mod_pubsub: Use pubsub_error_reply everywhere
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28 ["conflict"] = { "cancel", "conflict" }; |
3619 | 29 ["invalid-jid"] = { "modify", "bad-request", nil, "invalid-jid" }; |
30 ["item-not-found"] = { "cancel", "item-not-found" }; | |
31 }; | |
32 function pubsub_error_reply(stanza, error) | |
33 local e = pubsub_errors[error]; | |
34 local reply = st.error_reply(stanza, unpack(e, 1, 3)); | |
35 if e[4] then | |
36 reply:tag(e[4], { xmlns = xmlns_pubsub_errors }):up(); | |
37 end | |
38 return reply; | |
39 end | |
40 | |
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41 function handlers.get_items(origin, stanza, items) |
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42 local node = items.attr.node; |
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43 local item = items:get_child("item"); |
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44 local id = item and item.attr.id; |
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45 local data = st.stanza("items", { node = node }); |
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46 for _, entry in pairs(service:get(node, stanza.attr.from, id)) do |
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47 data:add_child(entry); |
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48 end |
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49 if data then |
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50 reply = st.reply(stanza) |
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51 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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52 :add_child(data); |
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53 else |
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54 reply = pubsub_error_reply(stanza, "item-not-found"); |
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55 end |
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56 return origin.send(reply); |
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57 end |
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58 |
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59 function handlers.set_create(origin, stanza, create) |
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60 local node = create.attr.node; |
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61 local ok, ret, reply; |
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62 if node then |
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63 ok, ret = service:create(node, stanza.attr.from); |
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64 if ok then |
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65 reply = st.reply(stanza); |
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66 else |
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67 reply = pubsub_error_reply(stanza, ret); |
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68 end |
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69 else |
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70 repeat |
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71 node = uuid_generate(); |
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72 ok, ret = service:create(node, stanza.attr.from); |
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73 until ok; |
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74 reply = st.reply(stanza) |
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75 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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76 :tag("create", { node = node }); |
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77 end |
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78 origin.send(reply); |
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79 end |
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80 |
3619 | 81 function handlers.set_subscribe(origin, stanza, subscribe) |
82 local node, jid = subscribe.attr.node, subscribe.attr.jid; | |
83 if jid_bare(jid) ~= jid_bare(stanza.attr.from) then | |
84 return origin.send(pubsub_error_reply(stanza, "invalid-jid")); | |
85 end | |
86 local ok, ret = service:add_subscription(node, stanza.attr.from, jid); | |
87 local reply; | |
88 if ok then | |
89 reply = st.reply(stanza) | |
90 :tag("pubsub", { xmlns = xmlns_pubsub }) | |
91 :tag("subscription", { | |
92 node = node, | |
93 jid = jid, | |
94 subscription = "subscribed" | |
95 }); | |
96 else | |
97 reply = pubsub_error_reply(stanza, ret); | |
98 end | |
99 return origin.send(reply); | |
100 end | |
101 | |
102 function handlers.set_publish(origin, stanza, publish) | |
103 local node = publish.attr.node; | |
104 local item = publish:get_child("item"); | |
105 local id = (item and item.attr.id) or uuid_generate(); | |
106 local ok, ret = service:publish(node, stanza.attr.from, id, item); | |
107 local reply; | |
108 if ok then | |
109 reply = st.reply(stanza) | |
110 :tag("pubsub", { xmlns = xmlns_pubsub }) | |
111 :tag("publish", { node = node }) | |
112 :tag("item", { id = id }); | |
113 else | |
114 reply = pubsub_error_reply(stanza, ret); | |
115 end | |
116 return origin.send(reply); | |
117 end | |
118 | |
119 function simple_broadcast(node, jids, item) | |
120 local message = st.message({ from = module.host, type = "headline" }) | |
121 :tag("event", { xmlns = xmlns_pubsub_event }) | |
122 :tag("items", { node = node }) | |
123 :add_child(item); | |
124 for jid in pairs(jids) do | |
125 module:log("debug", "Sending notification to %s", jid); | |
126 message.attr.to = jid; | |
127 core_post_stanza(hosts[module.host], message); | |
128 end | |
129 end | |
130 | |
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mod_pubsub: Expose 'service'
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131 module:hook("iq/host/http://jabber.org/protocol/pubsub:pubsub", handle_pubsub_iq); |
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132 |
3619 | 133 service = pubsub.new({ |
134 broadcaster = simple_broadcast | |
135 }); | |
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mod_pubsub: Use module.environment to reference the module's environment
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136 module.environment.service = service; |
3619 | 137 |