Wed, 22 Oct 2008 21:18:50 +0500
Minor edit, and added a TODO
0 | 1 | |
2 | require "util.stanza" | |
3 | ||
4 | local st = stanza; | |
5 | ||
6 | local t_concat = table.concat; | |
7 | local format = string.format; | |
8 | ||
9 | function init_stanza_dispatcher(session) | |
10 | local iq_handlers = {}; | |
11 | ||
12 | local session_log = session.log; | |
13 | local log = function (type, msg) session_log(type, "stanza_dispatcher", msg); end | |
14 | local send = session.send; | |
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matthew
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15 | local send_to; |
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16 | do |
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17 | local _send_to = session.send_to; |
b8787e859fd2
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18 | send_to = function (...) _send_to(session, ...); end |
b8787e859fd2
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matthew
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19 | end |
0 | 20 | |
21 | iq_handlers["jabber:iq:auth"] = | |
22 | function (stanza) | |
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23 | local username = stanza.tags[1]:child_with_name("username"); |
b8787e859fd2
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matthew
parents:
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24 | local password = stanza.tags[1]:child_with_name("password"); |
b8787e859fd2
Switched to new connection framework, courtesy of the luadch project
matthew
parents:
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25 | local resource = stanza.tags[1]:child_with_name("resource"); |
0 | 26 | if not (username and password and resource) then |
27 | local reply = st.reply(stanza); | |
28 | send(reply:query("jabber:iq:auth") | |
29 | :tag("username"):up() | |
30 | :tag("password"):up() | |
31 | :tag("resource"):up()); | |
32 | return true; | |
33 | else | |
34 | username, password, resource = t_concat(username), t_concat(password), t_concat(resource); | |
35 | local reply = st.reply(stanza); | |
36 | require "core.usermanager" | |
37 | if usermanager.validate_credentials(session.host, username, password) then | |
38 | -- Authentication successful! | |
39 | session.username = username; | |
40 | session.resource = resource; | |
2 | 41 | session.full_jid = username.."@"..session.host.."/"..session.resource; |
0 | 42 | if not hosts[session.host].sessions[username] then |
43 | hosts[session.host].sessions[username] = { sessions = {} }; | |
44 | end | |
45 | hosts[session.host].sessions[username].sessions[resource] = session; | |
46 | send(st.reply(stanza)); | |
47 | return true; | |
48 | else | |
49 | local reply = st.reply(stanza); | |
50 | reply.attr.type = "error"; | |
51 | reply:tag("error", { code = "401", type = "auth" }) | |
52 | :tag("not-authorized", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" }); | |
53 | send(reply); | |
54 | return true; | |
55 | end | |
56 | end | |
57 | ||
58 | end | |
59 | ||
60 | iq_handlers["jabber:iq:roster"] = | |
61 | function (stanza) | |
62 | if stanza.attr.type == "get" then | |
63 | session.roster = session.roster or rostermanager.getroster(session.username, session.host); | |
64 | if session.roster == false then | |
65 | send(st.reply(stanza) | |
66 | :tag("error", { type = "wait" }) | |
67 | :tag("internal-server-error", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"})); | |
68 | return true; | |
69 | else session.roster = session.roster or {}; | |
70 | end | |
71 | local roster = st.reply(stanza) | |
72 | :query("jabber:iq:roster"); | |
73 | for jid in pairs(session.roster) do | |
74 | roster:tag("item", { jid = jid, subscription = "none" }):up(); | |
75 | end | |
76 | send(roster); | |
77 | return true; | |
78 | end | |
79 | end | |
80 | ||
81 | ||
82 | return function (stanza) | |
83 | log("info", "--> "..tostring(stanza)); | |
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matthew
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84 | if (not stanza.attr.to) or (hosts[stanza.attr.to] and hosts[stanza.attr.to].type == "local") then |
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85 | if stanza.name == "iq" then |
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86 | if not stanza.tags[1] then log("warn", "<iq> without child is invalid"); return; end |
b8787e859fd2
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87 | if not stanza.attr.id then log("warn", "<iq> without id attribute is invalid"); end |
b8787e859fd2
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88 | local xmlns = (stanza.tags[1].attr and stanza.tags[1].attr.xmlns) or nil; |
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89 | if not xmlns then log("warn", "Child of <iq> has no xmlns - invalid"); return; end |
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90 | 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 |
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91 | if iq_handlers[xmlns] then |
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92 | if iq_handlers[xmlns](stanza) then return; end; |
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93 | end |
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94 | log("warn", "Unhandled namespace: "..xmlns); |
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95 | send(format("<iq type='error' id='%s'><error type='cancel'><service-unavailable/></error></iq>", stanza.attr.id)); |
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96 | return; |
0 | 97 | end |
7 | 98 | end |
99 | if not session.username then log("warn", "Attempt to use an unauthed stream!"); return; end | |
100 | if stanza.name == "presence" then | |
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101 | if session.roster then |
2 | 102 | local initial_presence = not session.last_presence; |
103 | session.last_presence = stanza; | |
104 | ||
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105 | -- Broadcast presence and probes |
2 | 106 | local broadcast = st.presence({ from = session.full_jid, type = stanza.attr.type }); |
107 | --local probe = st.presence { from = broadcast.attr.from, type = "probe" }; | |
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108 | |
2 | 109 | for child in stanza:childtags() do |
4 | 110 | broadcast:add_child(child); |
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111 | end |
2 | 112 | for contact_jid in pairs(session.roster) do |
113 | broadcast.attr.to = contact_jid; | |
114 | send_to(contact_jid, broadcast); | |
115 | if initial_presence then | |
116 | local node, host = jid.split(contact_jid); | |
117 | if hosts[host] and hosts[host].type == "local" then | |
118 | local contact = hosts[host].sessions[node] | |
119 | if contact then | |
120 | local pres = st.presence { to = session.full_jid }; | |
121 | for resource, contact_session in pairs(contact.sessions) do | |
122 | if contact_session.last_presence then | |
123 | pres.tags = contact_session.last_presence.tags; | |
124 | pres.attr.from = contact_session.full_jid; | |
125 | send(pres); | |
126 | end | |
127 | end | |
128 | end | |
129 | --FIXME: Do we send unavailable if they are offline? | |
130 | else | |
131 | probe.attr.to = contact; | |
132 | send_to(contact, probe); | |
133 | end | |
134 | end | |
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135 | end |
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136 | |
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137 | -- Probe for our contacts' presence |
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138 | end |
0 | 139 | end |
7 | 140 | elseif session.username then |
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141 | --end |
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142 | --if stanza.attr.to and ((not hosts[stanza.attr.to]) or hosts[stanza.attr.to].type ~= "local") then |
b8787e859fd2
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143 | -- Need to route stanza |
0 | 144 | stanza.attr.from = session.username.."@"..session.host; |
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145 | session:send_to(stanza.attr.to, stanza); |
0 | 146 | end |
147 | end | |
148 | ||
149 | end |