prosody
449399a7e136
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 5720:449399a7e136

Merge
author Matthew Wild <mwild1@gmail.com>
date Sat, 29 Jun 2013 14:45:47 +0100
parent 5690:630e7224a65f
child 5851:cdcfd93e2f43
child 5970:6a2c3293d4d7
comparison
equal deleted inserted replaced
5719:84025249fc04 5720:449399a7e136
1 local pubsub = require "util.pubsub";
2 local st = require "util.stanza";
3 local jid_bare = require "util.jid".bare;
4 local usermanager = require "core.usermanager";
5
6 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
7 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
8 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner";
9
10 local autocreate_on_publish = module:get_option_boolean("autocreate_on_publish", false);
11 local autocreate_on_subscribe = module:get_option_boolean("autocreate_on_subscribe", false);
12 local pubsub_disco_name = module:get_option("name");
13 if type(pubsub_disco_name) ~= "string" then pubsub_disco_name = "Prosody PubSub Service"; end
14
15 local service;
16
17 local lib_pubsub = module:require "pubsub";
18 local handlers = lib_pubsub.handlers;
19 local pubsub_error_reply = lib_pubsub.pubsub_error_reply;
20
21 module:depends("disco");
22 module:add_identity("pubsub", "service", pubsub_disco_name);
23 module:add_feature("http://jabber.org/protocol/pubsub");
24
25 function handle_pubsub_iq(event)
26 local origin, stanza = event.origin, event.stanza;
27 local pubsub = stanza.tags[1];
28 local action = pubsub.tags[1];
29 if not action then
30 return origin.send(st.error_reply(stanza, "cancel", "bad-request"));
31 end
32 local handler = handlers[stanza.attr.type.."_"..action.name];
33 if handler then
34 handler(origin, stanza, action, service);
35 return true;
36 end
37 end
38
39 function simple_broadcast(kind, node, jids, item)
40 if item then
41 item = st.clone(item);
42 item.attr.xmlns = nil; -- Clear the pubsub namespace
43 end
44 local message = st.message({ from = module.host, type = "headline" })
45 :tag("event", { xmlns = xmlns_pubsub_event })
46 :tag(kind, { node = node })
47 :add_child(item);
48 for jid in pairs(jids) do
49 module:log("debug", "Sending notification to %s", jid);
50 message.attr.to = jid;
51 module:send(message);
52 end
53 end
54
55 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
56 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
57
58 local feature_map = {
59 create = { "create-nodes", "instant-nodes", "item-ids" };
60 retract = { "delete-items", "retract-items" };
61 purge = { "purge-nodes" };
62 publish = { "publish", autocreate_on_publish and "auto-create" };
63 delete = { "delete-nodes" };
64 get_items = { "retrieve-items" };
65 add_subscription = { "subscribe" };
66 get_subscriptions = { "retrieve-subscriptions" };
67 };
68
69 local function add_disco_features_from_service(service)
70 for method, features in pairs(feature_map) do
71 if service[method] then
72 for _, feature in ipairs(features) do
73 if feature then
74 module:add_feature(xmlns_pubsub.."#"..feature);
75 end
76 end
77 end
78 end
79 for affiliation in pairs(service.config.capabilities) do
80 if affiliation ~= "none" and affiliation ~= "owner" then
81 module:add_feature(xmlns_pubsub.."#"..affiliation.."-affiliation");
82 end
83 end
84 end
85
86 module:hook("host-disco-info-node", function (event)
87 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
88 local ok, ret = service:get_nodes(stanza.attr.from);
89 if ok and not ret[node] then
90 return;
91 end
92 if not ok then
93 return origin.send(pubsub_error_reply(stanza, ret));
94 end
95 event.exists = true;
96 reply:tag("identity", { category = "pubsub", type = "leaf" });
97 end);
98
99 module:hook("host-disco-items-node", function (event)
100 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
101 local ok, ret = service:get_items(node, stanza.attr.from);
102 if not ok then
103 return origin.send(pubsub_error_reply(stanza, ret));
104 end
105
106 for id, item in pairs(ret) do
107 reply:tag("item", { jid = module.host, name = id }):up();
108 end
109 event.exists = true;
110 end);
111
112
113 module:hook("host-disco-items", function (event)
114 local stanza, origin, reply = event.stanza, event.origin, event.reply;
115 local ok, ret = service:get_nodes(event.stanza.attr.from);
116 if not ok then
117 return origin.send(pubsub_error_reply(event.stanza, ret));
118 end
119 for node, node_obj in pairs(ret) do
120 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.name }):up();
121 end
122 end);
123
124 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
125 local function get_affiliation(jid)
126 local bare_jid = jid_bare(jid);
127 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
128 return admin_aff;
129 end
130 end
131
132 function set_service(new_service)
133 service = new_service;
134 module.environment.service = service;
135 add_disco_features_from_service(service);
136 end
137
138 function module.save()
139 return { service = service };
140 end
141
142 function module.restore(data)
143 set_service(data.service);
144 end
145
146 function module.load()
147 if module.reloading then return; end
148
149 set_service(pubsub.new({
150 capabilities = {
151 none = {
152 create = false;
153 publish = false;
154 retract = false;
155 get_nodes = true;
156
157 subscribe = true;
158 unsubscribe = true;
159 get_subscription = true;
160 get_subscriptions = true;
161 get_items = true;
162
163 subscribe_other = false;
164 unsubscribe_other = false;
165 get_subscription_other = false;
166 get_subscriptions_other = false;
167
168 be_subscribed = true;
169 be_unsubscribed = true;
170
171 set_affiliation = false;
172 };
173 publisher = {
174 create = false;
175 publish = true;
176 retract = true;
177 get_nodes = true;
178
179 subscribe = true;
180 unsubscribe = true;
181 get_subscription = true;
182 get_subscriptions = true;
183 get_items = true;
184
185 subscribe_other = false;
186 unsubscribe_other = false;
187 get_subscription_other = false;
188 get_subscriptions_other = false;
189
190 be_subscribed = true;
191 be_unsubscribed = true;
192
193 set_affiliation = false;
194 };
195 owner = {
196 create = true;
197 publish = true;
198 retract = true;
199 delete = true;
200 get_nodes = true;
201
202 subscribe = true;
203 unsubscribe = true;
204 get_subscription = true;
205 get_subscriptions = true;
206 get_items = true;
207
208
209 subscribe_other = true;
210 unsubscribe_other = true;
211 get_subscription_other = true;
212 get_subscriptions_other = true;
213
214 be_subscribed = true;
215 be_unsubscribed = true;
216
217 set_affiliation = true;
218 };
219 };
220
221 autocreate_on_publish = autocreate_on_publish;
222 autocreate_on_subscribe = autocreate_on_subscribe;
223
224 broadcaster = simple_broadcast;
225 get_affiliation = get_affiliation;
226
227 normalize_jid = jid_bare;
228 }));
229 end