verse
d85d2443478e
component.lua

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component.lua @ 84:d85d2443478e

verse.component: XEP-0114 support \o/
author Matthew Wild <mwild1@gmail.com>
date Tue, 03 Aug 2010 09:17:23 +0100
child 150:728cc7f2f0c2
comparison
equal deleted inserted replaced
83:8221f3c25fd4 84:d85d2443478e
1 local verse = require "verse";
2 local stream = verse.stream_mt;
3
4 local jid_split = require "util.jid".split;
5 local lxp = require "lxp";
6 local st = require "util.stanza";
7 local sha1 = require "util.sha1".sha1;
8
9 -- Shortcuts to save having to load util.stanza
10 verse.message, verse.presence, verse.iq, verse.stanza, verse.reply, verse.error_reply =
11 st.message, st.presence, st.iq, st.stanza, st.reply, st.error_reply;
12
13 local init_xmlhandlers = require "core.xmlhandlers";
14
15 local xmlns_stream = "http://etherx.jabber.org/streams";
16 local xmlns_component = "jabber:component:accept";
17
18 local stream_callbacks = {
19 stream_ns = xmlns_stream,
20 stream_tag = "stream",
21 default_ns = "jabber:client" };
22
23 function stream_callbacks.streamopened(stream, attr)
24 stream.stream_id = attr.id;
25 if not stream:event("opened", attr) then
26 stream.notopen = nil;
27 end
28 return true;
29 end
30
31 function stream_callbacks.streamclosed(stream)
32 return stream:event("closed");
33 end
34
35 function stream_callbacks.handlestanza(stream, stanza)
36 if stanza.attr.xmlns == xmlns_stream then
37 return stream:event("stream-"..stanza.name, stanza);
38 elseif stanza.attr.xmlns then
39 return stream:event("stream/"..stanza.attr.xmlns, stanza);
40 end
41
42 return stream:event("stanza", stanza);
43 end
44
45 function stream:reset()
46 -- Reset stream
47 local parser = lxp.new(init_xmlhandlers(self, stream_callbacks), "\1");
48 self.parser = parser;
49
50 self.notopen = true;
51
52 return true;
53 end
54
55 function stream:connect_component(jid, pass)
56 self.jid, self.password = jid, pass;
57 self.username, self.host, self.resource = jid_split(jid);
58
59 function self.data(conn, data)
60 local ok, err = self.parser:parse(data);
61 if ok then return; end
62 stream:debug("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "));
63 stream:close("xml-not-well-formed");
64 end
65
66 self:hook("incoming-raw", function (data) return self.data(self.conn, data); end);
67
68 self.curr_id = 0;
69
70 self.tracked_iqs = {};
71 self:hook("stanza", function (stanza)
72 local id, type = stanza.attr.id, stanza.attr.type;
73 if id and stanza.name == "iq" and (type == "result" or type == "error") and self.tracked_iqs[id] then
74 self.tracked_iqs[id](stanza);
75 self.tracked_iqs[id] = nil;
76 return true;
77 end
78 end);
79
80 self:hook("stanza", function (stanza)
81 if stanza.attr.xmlns == nil or stanza.attr.xmlns == "jabber:client" then
82 if stanza.name == "iq" and (stanza.attr.type == "get" or stanza.attr.type == "set") then
83 local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns;
84 if xmlns then
85 ret = self:event("iq/"..xmlns, stanza);
86 if not ret then
87 ret = self:event("iq", stanza);
88 end
89 end
90 if ret == nil then
91 self:send(verse.error_reply(stanza, "cancel", "service-unavailable"));
92 return true;
93 end
94 else
95 ret = self:event(stanza.name, stanza);
96 end
97 end
98 return ret;
99 end, -1);
100
101 self:hook("opened", function (attr)
102 print(self.jid, self.stream_id, attr.id);
103 local token = sha1(self.stream_id..pass, true);
104
105 self:send(st.stanza("handshake", { xmlns = xmlns_component }):text(token));
106 self:hook("stream/"..xmlns_component, function (stanza)
107 if stanza.name == "handshake" then
108 self:event("authentication-success");
109 end
110 end);
111 end);
112
113 local function stream_ready()
114 self:event("ready");
115 end
116 self:hook("authentication-success", stream_ready, -1);
117
118 -- Initialise connection
119 self:connect(self.connect_host or self.host, self.connect_port or 5347);
120 self:reopen();
121 end
122
123 function stream:reopen()
124 self:reset();
125 self:send(st.stanza("stream:stream", { to = self.host, ["xmlns:stream"]='http://etherx.jabber.org/streams',
126 xmlns = xmlns_component, version = "1.0" }):top_tag());
127 end
128
129 function stream:close(reason)
130 if not self.notopen then
131 self:send("</stream:stream>");
132 end
133 local on_disconnect = self.conn.disconnect();
134 self.conn:close();
135 on_disconnect(conn, reason);
136 end
137
138 function stream:send_iq(iq, callback)
139 local id = self:new_id();
140 self.tracked_iqs[id] = callback;
141 iq.attr.id = id;
142 self:send(iq);
143 end
144
145 function stream:new_id()
146 self.curr_id = self.curr_id + 1;
147 return tostring(self.curr_id);
148 end