Mercurial > prosody-modules

annotate mod_bidi/mod_bidi.lua @ 892:148865199003

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_bidi: Initial commit of XEP-0288 implementation
author Kim Alvefur <zash@zash.se>
date Fri, 11 Jan 2013 01:08:31 +0100
parents
children 602e4c509095
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
892
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- Bidirectional Server-to-Server Connections
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 -- http://xmpp.org/extensions/xep-0288.html
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 -- Copyright (C) 2013 Kim Alvefur
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4 --
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 -- This file is MIT/X11 licensed.
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6 --
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 local s2smanager = require"core.s2smanager";
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
8 local add_filter = require "util.filters".add_filter;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9 local st = require "util.stanza";
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 local jid_split = require"util.jid".prepped_split;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 local xmlns_bidi_feature = "urn:xmpp:features:bidi"
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 local xmlns_bidi = "urn:xmpp:bidi";
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 local noop = function () end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15 local core_process_stanza = prosody.core_process_stanza;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), traceback()); end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18 local function handlestanza(session, stanza)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 if stanza.attr.xmlns == "jabber:client" then --COMPAT: Prosody pre-0.6.2 may send jabber:client
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20 stanza.attr.xmlns = nil;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
21 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
22 -- stanza = session.filter("stanzas/in", stanza);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
23 if stanza then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
24 return xpcall(function () return core_process_stanza(session, stanza) end, handleerr);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
25 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
26 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
27
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
28 local function new_bidi(origin)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29 local bidi_session, remote_host;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 origin.log("debug", "Creating bidirectional session wrapper");
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31 if origin.direction == "incoming" then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 remote_host = origin.from_host;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 bidi_session = s2smanager.new_outgoing(origin.to_host, origin.from_host)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34 else -- outgoing
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
35 remote_host = origin.to_host;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
36 bidi_session = s2smanager.new_incoming(origin.conn)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
37 bidi_session.to_host = origin.from_host;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 bidi_session.from_host = origin.to_host;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39 add_filter(origin, "stanzas/in", function(stanza)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 if stanza.attr.xmlns ~= nil then return stanza end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
41 local _, host = jid_split(stanza.attr.from);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
42 if host ~= remote_host then return stanza end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
43 handlestanza(bidi_session, stanza);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
44 end, 1);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
45 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
46 origin.bidi_session = bidi_session;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
47 bidi_session.sends2s = origin.sends2s;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
48 bidi_session.bounce_sendq = noop;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
49 bidi_session.notopen = nil;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
50 bidi_session.is_bidi = true;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
51 bidi_session.bidi_session = false;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
52 bidi_session.orig_session = origin;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
53 bidi_session.secure = origin.secure;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
54 bidi_session.cert_identity_status = origin.cert_identity_status;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
55 bidi_session.cert_chain_status = origin.cert_chain_status;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
56 bidi_session.close = function(...)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
57 return origin.close(...);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
58 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
59
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
60 bidi_session.log("info", "Bidirectional session established");
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
61 s2smanager.make_authenticated(bidi_session, remote_host);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
62 return bidi_session;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
63 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
64
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
65 -- Incoming s2s
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
66 module:hook("s2s-stream-features", function(event)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
67 local origin, features = event.origin, event.features;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
68 if not origin.is_bidi and not hosts[module.host].s2sout[origin.from_host] then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
69 module:log("debug", "Announcing support for bidirectional streams");
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
70 features:tag("bidi", { xmlns = xmlns_bidi_feature }):up();
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
71 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
72 end);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
73
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
74 module:hook("stanza/urn:xmpp:bidi:bidi", function(event)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
75 local origin = event.session or event.origin;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
76 if not origin.is_bidi and not origin.bidi_session then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
77 module:log("debug", "%s requested bidirectional stream", origin.from_host);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
78 if hosts[module.host].s2sout[origin.from_host] then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
79 local conflicting_session = hosts[module.host].s2sout[origin.from_host]
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
80 conflicting_session.log("warn", "We already have an outgoing connection to %s, closing it...", origin.from_host);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
81 conflicting_session:close{ condition = "conflict", text = "Replaced by bidirectional stream" }
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
82 s2smanager.destroy_session(conflicting_session);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
83 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
84 origin.do_bidi = true;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
85 return true;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
86 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
87 end);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
88
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
89 -- Outgoing s2s
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
90 module:hook("stanza/http://etherx.jabber.org/streams:features", function(event)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
91 local origin = event.session or event.origin;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
92 if not ( origin.bidi_session or origin.is_bidi or origin.do_bidi)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
93 and event.stanza:get_child("bidi", xmlns_bidi_feature) then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
94 module:log("debug", "%s supports bidirectional streams", origin.to_host);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
95 origin.sends2s(st.stanza("bidi", { xmlns = xmlns_bidi }));
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
96 origin.do_bidi = true;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
97 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
98 end, 160);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
99
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
100 function enable_bidi(event)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
101 local session = event.session;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
102 if session.do_bidi and not ( session.is_bidi or session.bidi_session ) then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
103 session.do_bidi = nil;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
104 new_bidi(session);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
105 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
106 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
107
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
108 module:hook("s2sin-established", enable_bidi);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
109 module:hook("s2sout-established", enable_bidi);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
110
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
111 function disable_bidi(event)
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
112 local session = event.session;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
113 if session.bidi_session then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
114 local bidi_session = session.bidi_session;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
115 session.bidi_session = nil;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
116 session.log("debug", "Tearing down bidirectional stream");
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
117 s2smanager.destroy_session(bidi_session, event.reason);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
118 elseif session.orig_session then
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
119 local orig_session = session.orig_session;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
120 session.orig_session = nil;
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
121 orig_session.log("debug", "Tearing down bidirectional stream");
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
122 s2smanager.destroy_session(orig_session, event.reason);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
123 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
124 end
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
125
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
126 module:hook("s2sin-destroyed", disable_bidi);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
127 module:hook("s2sout-destroyed", disable_bidi);
148865199003 mod_bidi: Initial commit of XEP-0288 implementation
Kim Alvefur <zash@zash.se>
parents:
diff changeset
128