| 1 | local verse = require "verse"; |
| 2 | |
| 3 | local t_insert = table.insert; |
| 4 | |
| 5 | local xmlns_pubsub = "http://jabber.org/protocol/pubsub"; |
| 6 | local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner"; |
| 7 | local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event"; |
| 8 | -- local xmlns_pubsub_errors = "http://jabber.org/protocol/pubsub#errors"; |
| 9 | |
| 10 | local pubsub = {}; |
| 11 | local pubsub_mt = { __index = pubsub }; |
| 12 | |
| 13 | function verse.plugins.pubsub(stream) |
| 14 | stream.pubsub = setmetatable({ stream = stream }, pubsub_mt); |
| 15 | stream:hook("message", function (message) |
| 16 | local m_from = message.attr.from; |
| 17 | for pubsub_event in message:childtags("event", xmlns_pubsub_event) do |
| 18 | local items = pubsub_event:get_child("items"); |
| 19 | if items then |
| 20 | local node = items.attr.node; |
| 21 | for item in items:childtags("item") do |
| 22 | stream:event("pubsub/event", { |
| 23 | from = m_from; |
| 24 | node = node; |
| 25 | item = item; |
| 26 | }); |
| 27 | end |
| 28 | for retract in items:childtags("retract") do |
| 29 | stream:event("pubsub/retraction", { |
| 30 | from = m_from; |
| 31 | node = node; |
| 32 | item = retract; |
| 33 | }); |
| 34 | end |
| 35 | end |
| 36 | end |
| 37 | end); |
| 38 | return true; |
| 39 | end |
| 40 | |
| 41 | -- COMPAT |
| 42 | function pubsub:create(server, node, callback) |
| 43 | return self:service(server):node(node):create(nil, callback); |
| 44 | end |
| 45 | |
| 46 | function pubsub:subscribe(server, node, jid, callback) |
| 47 | return self:service(server):node(node):subscribe(jid, nil, callback); |
| 48 | end |
| 49 | |
| 50 | function pubsub:publish(server, node, id, item, callback) |
| 51 | return self:service(server):node(node):publish(id, nil, item, callback); |
| 52 | end |
| 53 | |
| 54 | -------------------------------------------------------------------------- |
| 55 | ---------------------New and improved PubSub interface-------------------- |
| 56 | -------------------------------------------------------------------------- |
| 57 | |
| 58 | local pubsub_service = {}; |
| 59 | local pubsub_service_mt = { __index = pubsub_service }; |
| 60 | |
| 61 | -- TODO should the property be named 'jid' instead? |
| 62 | function pubsub:service(service) |
| 63 | return setmetatable({ stream = self.stream, service = service }, pubsub_service_mt) |
| 64 | end |
| 65 | |
| 66 | -- Helper function for iq+pubsub tags |
| 67 | |
| 68 | local function pubsub_iq(iq_type, to, ns, op, node, jid, item_id, op_attr_extra) |
| 69 | local st = verse.iq{ type = iq_type or "get", to = to } |
| 70 | :tag("pubsub", { xmlns = ns or xmlns_pubsub }) -- ns would be ..#owner |
| 71 | local op_attr = { node = node, jid = jid }; |
| 72 | if op_attr_extra then |
| 73 | for k, v in pairs(op_attr_extra) do |
| 74 | op_attr[k] = v; |
| 75 | end |
| 76 | end |
| 77 | if op then st:tag(op, op_attr); end |
| 78 | if item_id then |
| 79 | st:tag("item", { id = item_id ~= true and item_id or nil }); |
| 80 | end |
| 81 | return st; |
| 82 | end |
| 83 | |
| 84 | -- http://xmpp.org/extensions/xep-0060.html#entity-subscriptions |
| 85 | function pubsub_service:subscriptions(callback) |
| 86 | self.stream:send_iq(pubsub_iq(nil, self.service, nil, "subscriptions") |
| 87 | , callback and function (result) |
| 88 | if result.attr.type == "result" then |
| 89 | local ps = result:get_child("pubsub", xmlns_pubsub); |
| 90 | local subs = ps and ps:get_child("subscriptions"); |
| 91 | local nodes = {}; |
| 92 | if subs then |
| 93 | for sub in subs:childtags("subscription") do |
| 94 | local node = self:node(sub.attr.node) |
| 95 | node.subscription = sub; |
| 96 | node.subscribed_jid = sub.attr.jid; |
| 97 | t_insert(nodes, node); |
| 98 | -- FIXME Good enough? |
| 99 | -- Or how about: |
| 100 | -- nodes[node] = sub; |
| 101 | end |
| 102 | end |
| 103 | callback(nodes); |
| 104 | else |
| 105 | callback(false, result:get_error()); |
| 106 | end |
| 107 | end or nil); |
| 108 | end |
| 109 | |
| 110 | -- http://xmpp.org/extensions/xep-0060.html#entity-affiliations |
| 111 | function pubsub_service:affiliations(callback) |
| 112 | self.stream:send_iq(pubsub_iq(nil, self.service, nil, "affiliations") |
| 113 | , callback and function (result) |
| 114 | if result.attr.type == "result" then |
| 115 | local ps = result:get_child("pubsub", xmlns_pubsub); |
| 116 | local affils = ps and ps:get_child("affiliations") or {}; |
| 117 | local nodes = {}; |
| 118 | if affils then |
| 119 | for affil in affils:childtags("affiliation") do |
| 120 | local node = self:node(affil.attr.node) |
| 121 | node.affiliation = affil; |
| 122 | t_insert(nodes, node); |
| 123 | -- nodes[node] = affil; |
| 124 | end |
| 125 | end |
| 126 | callback(nodes); |
| 127 | else |
| 128 | callback(false, result:get_error()); |
| 129 | end |
| 130 | end or nil); |
| 131 | end |
| 132 | |
| 133 | function pubsub_service:nodes(callback) |
| 134 | self.stream:disco_items(self.service, nil, function(items, ...) |
| 135 | if items then |
| 136 | for i=1,#items do |
| 137 | items[i] = self:node(items[i].node); |
| 138 | end |
| 139 | end |
| 140 | callback(items, ...) |
| 141 | end); |
| 142 | end |
| 143 | |
| 144 | local pubsub_node = {}; |
| 145 | local pubsub_node_mt = { __index = pubsub_node }; |
| 146 | |
| 147 | function pubsub_service:node(node) |
| 148 | return setmetatable({ stream = self.stream, service = self.service, node = node }, pubsub_node_mt) |
| 149 | end |
| 150 | |
| 151 | function pubsub_mt:__call(service, node) |
| 152 | local s = self:service(service); |
| 153 | return node and s:node(node) or s; |
| 154 | end |
| 155 | |
| 156 | function pubsub_node:hook(callback, prio) |
| 157 | self._hooks = self._hooks or setmetatable({}, { __mode = 'kv' }); |
| 158 | local function hook(event) |
| 159 | -- FIXME service == nil would mean anyone, |
| 160 | -- publishing would be go to your bare jid. |
| 161 | -- So if you're only interestied in your own |
| 162 | -- events, hook your own bare jid. |
| 163 | if (not event.service or event.from == self.service) and event.node == self.node then |
| 164 | return callback(event) |
| 165 | end |
| 166 | end |
| 167 | self._hooks[callback] = hook; |
| 168 | self.stream:hook("pubsub/event", hook, prio); |
| 169 | return hook; |
| 170 | end |
| 171 | |
| 172 | function pubsub_node:unhook(callback) |
| 173 | if callback then |
| 174 | local hook = self._hooks[callback]; |
| 175 | self.stream:unhook("pubsub/event", hook); |
| 176 | elseif self._hooks then |
| 177 | for hook in pairs(self._hooks) do |
| 178 | self.stream:unhook("pubsub/event", hook); |
| 179 | end |
| 180 | end |
| 181 | end |
| 182 | |
| 183 | function pubsub_node:create(config, callback) |
| 184 | if config ~= nil then |
| 185 | error("Not implemented yet."); |
| 186 | else |
| 187 | self.stream:send_iq(pubsub_iq("set", self.service, nil, "create", self.node), callback); |
| 188 | end |
| 189 | end |
| 190 | |
| 191 | -- <configure/> and <default/> rolled into one |
| 192 | function pubsub_node:configure(config, callback) |
| 193 | if config ~= nil then |
| 194 | error("Not implemented yet."); |
| 195 | --[[ |
| 196 | if config == true then |
| 197 | self.stream:send_iq(pubsub_iq("get", self.service, nil, "configure", self.node) |
| 198 | , function(reply) |
| 199 | local form = reply:get_child("pubsub"):get_child("configure"):get_cild("x"); |
| 200 | local config = callback(require"prosody.util.dataforms".something(form)) |
| 201 | self.stream:send_iq(pubsub_iq("set", config, ...)) |
| 202 | end); |
| 203 | end |
| 204 | --]] |
| 205 | -- fetch form and pass it to the callback |
| 206 | -- which would process it and pass it back |
| 207 | -- and then we submit it |
| 208 | -- elseif type(config) == "table" then |
| 209 | -- it's a form or stanza that we submit |
| 210 | -- end |
| 211 | -- this would be done for everything that needs a config |
| 212 | end |
| 213 | self.stream:send_iq(pubsub_iq("set", self.service, nil, config == nil and "default" or "configure", self.node), callback); |
| 214 | end |
| 215 | |
| 216 | function pubsub_node:publish(id, options, node, callback) |
| 217 | if options ~= nil then |
| 218 | error("Node configuration is not implemented yet."); |
| 219 | end |
| 220 | self.stream:send_iq(pubsub_iq("set", self.service, nil, "publish", self.node, nil, id or true) |
| 221 | :add_child(node) |
| 222 | , callback); |
| 223 | end |
| 224 | |
| 225 | function pubsub_node:subscribe(jid, options, callback) |
| 226 | jid = jid or self.stream.jid; |
| 227 | if options ~= nil then |
| 228 | error("Subscription configuration is not implemented yet."); |
| 229 | end |
| 230 | self.stream:send_iq(pubsub_iq("set", self.service, nil, "subscribe", self.node, jid) |
| 231 | , callback); |
| 232 | end |
| 233 | |
| 234 | function pubsub_node:subscription(callback) |
| 235 | error("Not implemented yet."); |
| 236 | end |
| 237 | |
| 238 | function pubsub_node:affiliation(callback) |
| 239 | error("Not implemented yet."); |
| 240 | end |
| 241 | |
| 242 | function pubsub_node:unsubscribe(jid, callback) |
| 243 | jid = jid or self.subscribed_jid or self.stream.jid; |
| 244 | self.stream:send_iq(pubsub_iq("set", self.service, nil, "unsubscribe", self.node, jid) |
| 245 | , callback); |
| 246 | end |
| 247 | |
| 248 | function pubsub_node:configure_subscription(options, callback) |
| 249 | error("Not implemented yet."); |
| 250 | end |
| 251 | |
| 252 | function pubsub_node:items(full, callback) |
| 253 | if full then |
| 254 | return self:item(nil, callback); |
| 255 | else |
| 256 | self.stream:disco_items(self.service, self.node, callback); |
| 257 | end |
| 258 | end |
| 259 | |
| 260 | function pubsub_node:item(id, callback) |
| 261 | self.stream:send_iq(pubsub_iq("get", self.service, nil, "items", self.node, nil, id) |
| 262 | , callback); |
| 263 | end |
| 264 | |
| 265 | function pubsub_node:retract(id, notify, callback) |
| 266 | if type(notify) == "function" then -- COMPAT w/ older versions before 'notify' was added |
| 267 | notify, callback = false, notify; |
| 268 | end |
| 269 | self.stream:send_iq( |
| 270 | pubsub_iq( |
| 271 | "set", |
| 272 | self.service, |
| 273 | nil, |
| 274 | "retract", |
| 275 | self.node, |
| 276 | nil, |
| 277 | id, |
| 278 | { notify = notify and "1" or nil } |
| 279 | ), |
| 280 | callback |
| 281 | ); |
| 282 | end |
| 283 | |
| 284 | function pubsub_node:purge(notify, callback) |
| 285 | self.stream:send_iq( |
| 286 | pubsub_iq( |
| 287 | "set", |
| 288 | self.service, |
| 289 | xmlns_pubsub_owner, |
| 290 | "purge", |
| 291 | self.node, |
| 292 | nil, |
| 293 | nil, |
| 294 | { notify = notify and "1" or nil } |
| 295 | ), |
| 296 | callback |
| 297 | ); |
| 298 | end |
| 299 | |
| 300 | function pubsub_node:delete(redirect_uri, callback) |
| 301 | assert(not redirect_uri, "Not implemented yet."); |
| 302 | self.stream:send_iq(pubsub_iq("set", self.service, xmlns_pubsub_owner, "delete", self.node) |
| 303 | , callback); |
| 304 | end |