1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
require "util.stanza"
local st = stanza;
local t_concat = table.concat;
local format = string.format;
function init_stanza_dispatcher(session)
local iq_handlers = {};
local session_log = session.log;
local log = function (type, msg) session_log(type, "stanza_dispatcher", msg); end
local send = session.send;
local send_to;
do
local _send_to = session.send_to;
send_to = function (...) _send_to(session, ...); end
end
iq_handlers["jabber:iq:auth"] =
function (stanza)
local username = stanza.tags[1]:child_with_name("username");
local password = stanza.tags[1]:child_with_name("password");
local resource = stanza.tags[1]:child_with_name("resource");
if not (username and password and resource) then
local reply = st.reply(stanza);
send(reply:query("jabber:iq:auth")
:tag("username"):up()
:tag("password"):up()
:tag("resource"):up());
return true;
else
username, password, resource = t_concat(username), t_concat(password), t_concat(resource);
print(username, password, resource)
local reply = st.reply(stanza);
require "core.usermanager"
if usermanager.validate_credentials(session.host, username, password) then
-- Authentication successful!
session.username = username;
session.resource = resource;
if not hosts[session.host].sessions[username] then
hosts[session.host].sessions[username] = { sessions = {} };
end
hosts[session.host].sessions[username].sessions[resource] = session;
send(st.reply(stanza));
return true;
else
local reply = st.reply(stanza);
reply.attr.type = "error";
reply:tag("error", { code = "401", type = "auth" })
:tag("not-authorized", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" });
send(reply);
return true;
end
end
end
iq_handlers["jabber:iq:roster"] =
function (stanza)
if stanza.attr.type == "get" then
session.roster = session.roster or rostermanager.getroster(session.username, session.host);
if session.roster == false then
send(st.reply(stanza)
:tag("error", { type = "wait" })
:tag("internal-server-error", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}));
return true;
else session.roster = session.roster or {};
end
local roster = st.reply(stanza)
:query("jabber:iq:roster");
for jid in pairs(session.roster) do
roster:tag("item", { jid = jid, subscription = "none" }):up();
end
send(roster);
return true;
end
end
return function (stanza)
log("info", "--> "..tostring(stanza));
if (not stanza.attr.to) or (hosts[stanza.attr.to] and hosts[stanza.attr.to].type == "local") then
if stanza.name == "iq" then
if not stanza.tags[1] then log("warn", "<iq> without child is invalid"); return; end
if not stanza.attr.id then log("warn", "<iq> without id attribute is invalid"); end
local xmlns = (stanza.tags[1].attr and stanza.tags[1].attr.xmlns) or nil;
if not xmlns then log("warn", "Child of <iq> has no xmlns - invalid"); return; end
if (((not stanza.attr.to) or stanza.attr.to == session.host or stanza.attr.to:match("@[^/]+$")) and (stanza.attr.type == "get" or stanza.attr.type == "set")) then -- Stanza sent to us
if iq_handlers[xmlns] then
if iq_handlers[xmlns](stanza) then return; end;
end
log("warn", "Unhandled namespace: "..xmlns);
send(format("<iq type='error' id='%s'><error type='cancel'><service-unavailable/></error></iq>", stanza.attr.id));
return;
end
elseif stanza.name == "presence" then
if session.roster then
-- Broadcast presence and probes
local broadcast = st.presence({ from = session.username.."@"..session.host.."/"..session.resource });
local probe = st.presence { from = broadcast.attr.from, type = "probe" };
for child in stanza:children() do
broadcast:tag(child.name, child.attr);
end
for contact in pairs(session.roster) do
broadcast.attr.to = contact;
send_to(contact, broadcast);
--local host = jid.host(contact);
--if hosts[host] and hosts[host].type == "local" then
--local node, host = jid.split(contact);
--if host[host].sessions[node]
--local pres = st.presence { from = con
--else
-- probe.attr.to = contact;
-- send_to(contact, probe);
--end
end
-- Probe for our contacts' presence
end
end
else
--end
--if stanza.attr.to and ((not hosts[stanza.attr.to]) or hosts[stanza.attr.to].type ~= "local") then
-- Need to route stanza
stanza.attr.from = session.username.."@"..session.host;
session:send_to(stanza.attr.to, stanza);
end
end
end
|
