Mercurial > lxmppd-hg-xmllex / file comparison
comparison: util/discohelper.lua
util/discohelper.lua
- changeset 1711
- 00ad2488ef0b
- parent 1710
- d7adeb81b2e8
- child 1712
- 45a81d6d8777
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| 1710:d7adeb81b2e8 | 1711:00ad2488ef0b |
|---|---|
| 1 -- Prosody IM | |
| 2 -- Copyright (C) 2008-2009 Matthew Wild | |
| 3 -- Copyright (C) 2008-2009 Waqas Hussain | |
| 4 -- | |
| 5 -- This project is MIT/X11 licensed. Please see the | |
| 6 -- COPYING file in the source package for more information. | |
| 7 -- | |
| 8 | |
| 9 | |
| 10 | |
| 11 local t_insert = table.insert; | |
| 12 local jid_split = require "util.jid".split; | |
| 13 local ipairs = ipairs; | |
| 14 local st = require "util.stanza"; | |
| 15 | |
| 16 module "discohelper"; | |
| 17 | |
| 18 local function addDiscoItemsHandler(self, jid, func) | |
| 19 if self.item_handlers[jid] then | |
| 20 t_insert(self.item_handlers[jid], func); | |
| 21 else | |
| 22 self.item_handlers[jid] = {func}; | |
| 23 end | |
| 24 end | |
| 25 | |
| 26 local function addDiscoInfoHandler(self, jid, func) | |
| 27 if self.info_handlers[jid] then | |
| 28 t_insert(self.info_handlers[jid], func); | |
| 29 else | |
| 30 self.info_handlers[jid] = {func}; | |
| 31 end | |
| 32 end | |
| 33 | |
| 34 local function handle(self, stanza) | |
| 35 if stanza.name == "iq" and stanza.tags[1].name == "query" then | |
| 36 local query = stanza.tags[1]; | |
| 37 local to = stanza.attr.to; | |
| 38 local from = stanza.attr.from | |
| 39 local node = query.attr.node or ""; | |
| 40 local to_node, to_host = jid_split(to); | |
| 41 | |
| 42 local reply = st.reply(stanza):query(query.attr.xmlns); | |
| 43 local handlers; | |
| 44 if query.attr.xmlns == "http://jabber.org/protocol/disco#info" then -- select handler set | |
| 45 handlers = self.info_handlers; | |
| 46 elseif query.attr.xmlns == "http://jabber.org/protocol/disco#items" then | |
| 47 handlers = self.item_handlers; | |
| 48 end | |
| 49 local handler; | |
| 50 local found; -- to keep track of any handlers found | |
| 51 if to_node then -- handlers which get called always | |
| 52 handler = handlers["*node"]; | |
| 53 else | |
| 54 handler = handlers["*host"]; | |
| 55 end | |
| 56 if handler then -- call always called handler | |
| 57 for _, h in ipairs(handler) do | |
| 58 if h(reply, to, from, node) then found = true; end | |
| 59 end | |
| 60 end | |
| 61 handler = handlers[to]; -- get the handler | |
| 62 if not handler then -- if not found then use default handler | |
| 63 if to_node then | |
| 64 handler = handlers["*defaultnode"]; | |
| 65 else | |
| 66 handler = handlers["*defaulthost"]; | |
| 67 end | |
| 68 end | |
| 69 if handler then | |
| 70 for _, h in ipairs(handler) do | |
| 71 if h(reply, to, from, node) then found = true; end | |
| 72 end | |
| 73 end | |
| 74 if found then return reply; end -- return the reply if there was one | |
| 75 return st.error_reply(stanza, "cancel", "service-unavailable"); | |
| 76 end | |
| 77 end | |
| 78 | |
| 79 function new() | |
| 80 return { | |
| 81 item_handlers = {}; | |
| 82 info_handlers = {}; | |
| 83 addDiscoItemsHandler = addDiscoItemsHandler; | |
| 84 addDiscoInfoHandler = addDiscoInfoHandler; | |
| 85 handle = handle; | |
| 86 }; | |
| 87 end | |
| 88 | |
| 89 return _M; |
