2 local tonumber, tostring = tonumber, tostring;
3 local ipairs, pairs, print, next= ipairs, pairs, print, next;
4 local collectgarbage = collectgarbage;
5 local m_random = import("math", "random");
6 local format = import("string", "format");
9 local sessions = sessions;
11 local modulemanager = require "core.modulemanager";
12 local log = require "util.logger".init("sessionmanager");
14 local uuid_generate = require "util.uuid".generate;
15 local rm_load_roster = require "core.rostermanager".load_roster;
17 local st = require "util.stanza";
19 local newproxy = newproxy;
20 local getmetatable = getmetatable;
22 module "sessionmanager"
24 local open_sessions = 0;
26 function new_session(conn)
27 local session = { conn = conn, priority = 0, type = "c2s_unauthed" };
29 session.trace = newproxy(true);
30 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; print("Session got collected, now "..open_sessions.." sessions are allocated") end;
32 open_sessions = open_sessions + 1;
33 log("info", "open sessions now: ".. open_sessions);
35 session.send = function (t) w(tostring(t)); end
39 function destroy_session(session, err)
40 (session.log or log)("info", "Destroying session");
42 -- Send unavailable presence
43 if session.presence then
44 local pres = st.presence{ type = "unavailable" };
45 if (not err) or err == "closed" then err = "connection closed"; end
46 pres:tag("status"):text("Disconnected: "..err);
47 session.stanza_dispatch(pres);
50 -- Remove session/resource from user's session list
51 if session.host and session.username then
52 if session.resource then
53 hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
55 if hosts[session.host] and hosts[session.host].sessions[session.username] then
56 if not next(hosts[session.host].sessions[session.username].sessions) then
57 log("debug", "All resources of %s are now offline", session.username);
58 hosts[session.host].sessions[session.username] = nil;
63 for k in pairs(session) do
70 function make_authenticated(session, username)
71 session.username = username;
72 if session.type == "c2s_unauthed" then
78 -- returns true, nil on success
79 -- returns nil, err_type, err, err_message on failure
80 function bind_resource(session, resource)
81 if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end
82 if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end
83 -- We don't support binding multiple resources
85 resource = resource or uuid_generate();
86 --FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing
88 if not hosts[session.host].sessions[session.username] then
89 hosts[session.host].sessions[session.username] = { sessions = {} };
91 if hosts[session.host].sessions[session.username].sessions[resource] then
93 return nil, "cancel", "conflict", "Resource already exists"; -- TODO kick old resource
97 session.resource = resource;
98 session.full_jid = session.username .. '@' .. session.host .. '/' .. resource;
99 hosts[session.host].sessions[session.username].sessions[resource] = session;
101 session.roster = rm_load_roster(session.username, session.host);
106 function streamopened(session, attr)
107 local send = session.send;
108 session.host = attr.to or error("Client failed to specify destination hostname");
109 session.version = tonumber(attr.version) or 0;
110 session.streamid = m_random(1000000, 99999999);
111 (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
114 send("<?xml version='1.0'?>");
115 send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0'>", session.streamid, session.host));
117 if not hosts[session.host] then
118 -- We don't serve this host...
119 session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)};
124 local features = st.stanza("stream:features");
125 modulemanager.fire_event("stream-features", session, features);
129 (session.log or log)("info", "Sent reply <stream:stream> to client");
130 session.notopen = nil;
133 function send_to_available_resources(user, host, stanza)
135 local to = stanza.attr.to;
136 stanza.attr.to = nil;
137 local h = hosts[host];
138 if h and h.type == "local" then
139 local u = h.sessions[user];
141 for k, session in pairs(u.sessions) do
142 if session.presence then
143 session.send(stanza);