+-- Prosody IM v0.2
+-- Copyright (C) 2008 Matthew Wild
+-- Copyright (C) 2008 Waqas Hussain
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
-local tonumber, tostring = tonumber, tostring;
-local ipairs, print= ipairs, print;
+local tonumber, tostring = tonumber, tostring;
+local ipairs, pairs, print, next= ipairs, pairs, print, next;
+local collectgarbage = collectgarbage;
local m_random = import("math", "random");
local format = import("string", "format");
local hosts = hosts;
+local sessions = sessions;
local modulemanager = require "core.modulemanager";
local log = require "util.logger".init("sessionmanager");
local error = error;
-local uuid_generate = require "util.uuid".uuid_generate;
+local uuid_generate = require "util.uuid".generate;
+local rm_load_roster = require "core.rostermanager".load_roster;
+local config_get = require "core.configmanager".get;
+
+local fire_event = require "core.eventmanager".fire_event;
+
+local gettime = require "socket".gettime;
+
+local st = require "util.stanza";
+
+local newproxy = newproxy;
+local getmetatable = getmetatable;
+
module "sessionmanager"
+local open_sessions = 0;
+
function new_session(conn)
- local session = { conn = conn, notopen = true, priority = 0, type = "c2s_unauthed" };
+ local session = { conn = conn, priority = 0, type = "c2s_unauthed", conntime = gettime() };
+ if true then
+ session.trace = newproxy(true);
+ getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end;
+ end
+ open_sessions = open_sessions + 1;
+ log("info", "open sessions now: ".. open_sessions);
local w = conn.write;
session.send = function (t) w(tostring(t)); end
+ session.ip = conn.ip();
return session;
end
-function destroy_session(session)
-end
-
-function send_to_session(session, data)
- log("debug", "Sending: %s", tostring(data));
- session.conn.write(tostring(data));
+function destroy_session(session, err)
+ (session.log or log)("info", "Destroying session");
+
+ -- Send unavailable presence
+ if session.presence then
+ local pres = st.presence{ type = "unavailable" };
+ if (not err) or err == "closed" then err = "connection closed"; end
+ pres:tag("status"):text("Disconnected: "..err);
+ session:dispatch_stanza(pres);
+ end
+
+ -- Remove session/resource from user's session list
+ if session.host and session.username then
+ -- FIXME: How can the below ever be nil? (but they sometimes are...)
+ if hosts[session.host] and hosts[session.host].sessions[session.username] then
+ if session.resource then
+ hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
+ end
+
+ if not next(hosts[session.host].sessions[session.username].sessions) then
+ log("debug", "All resources of %s are now offline", session.username);
+ hosts[session.host].sessions[session.username] = nil;
+ end
+ else
+ log("error", "host or session table didn't exist, please report this! Host: %s [%s] Sessions: %s [%s]",
+ tostring(hosts[session.host]), tostring(session.host),
+ tostring(hosts[session.host].sessions[session.username] ), tostring(session.username));
+ end
+ end
+
+ for k in pairs(session) do
+ if k ~= "trace" then
+ session[k] = nil;
+ end
+ end
end
function make_authenticated(session, username)
session.username = username;
- session.resource = resource;
if session.type == "c2s_unauthed" then
session.type = "c2s";
end
+ return true;
end
+-- returns true, nil on success
+-- returns nil, err_type, err, err_message on failure
function bind_resource(session, resource)
- if not session.username then return false, "auth"; end
- if session.resource then return false, "constraint"; end -- We don't support binding multiple resources
+ if not session.username then return nil, "auth", "not-authorized", "Cannot bind resource before authentication"; end
+ if session.resource then return nil, "cancel", "already-bound", "Cannot bind multiple resources on a single connection"; end
+ -- We don't support binding multiple resources
+
resource = resource or uuid_generate();
--FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing
if not hosts[session.host].sessions[session.username] then
hosts[session.host].sessions[session.username] = { sessions = {} };
else
- if hosts[session.host].sessions[session.username].sessions[resource] then
+ local sessions = hosts[session.host].sessions[session.username].sessions;
+ local limit = config_get(session.host, "core", "max_resources") or 10;
+ if #sessions >= limit then
+ return nil, "cancel", "conflict", "Resource limit reached; only "..limit.." resources allowed";
+ end
+ if sessions[resource] then
-- Resource conflict
- return false, "conflict";
+ local policy = config_get(session.host, "core", "conflict_resolve");
+ local increment;
+ if policy == "random" then
+ resource = uuid_generate();
+ increment = true;
+ elseif policy == "increment" then
+ increment = true; -- TODO ping old resource
+ elseif policy == "kick_new" then
+ return nil, "cancel", "conflict", "Resource already exists";
+ else -- if policy == "kick_old" then
+ hosts[session.host].sessions[session.username].sessions[resource]:close {
+ condition = "conflict";
+ text = "Replaced by new connection";
+ };
+ end
+ if increment and sessions[resource] then
+ local count = 1;
+ while sessions[resource.."#"..count] do
+ count = count + 1;
+ end
+ resource = resource.."#"..count;
+ end
end
end
session.full_jid = session.username .. '@' .. session.host .. '/' .. resource;
hosts[session.host].sessions[session.username].sessions[resource] = session;
+ session.roster = rm_load_roster(session.username, session.host);
+
return true;
end
session.host = attr.to or error("Client failed to specify destination hostname");
session.version = tonumber(attr.version) or 0;
session.streamid = m_random(1000000, 99999999);
- print(session, session.host, "Client opened stream");
- send("<?xml version='1.0'?>");
+ (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
+
+
+ send("<?xml version='1.0'?>");
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));
- local features = {};
- modulemanager.fire_event("stream-features", session, features);
+ if not hosts[session.host] then
+ -- We don't serve this host...
+ session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)};
+ return;
+ end
- send("<stream:features>");
- for _, feature in ipairs(features) do
- send_to_session(session, tostring(feature));
- end
-
- send("</stream:features>");
- log("info", "Stream opened successfully");
+ local features = st.stanza("stream:features");
+ fire_event("stream-features", session, features);
+
+ send(features);
+
+ (session.log or log)("info", "Sent reply <stream:stream> to client");
session.notopen = nil;
end
-return _M;
\ No newline at end of file
+function send_to_available_resources(user, host, stanza)
+ local count = 0;
+ local to = stanza.attr.to;
+ stanza.attr.to = nil;
+ local h = hosts[host];
+ if h and h.type == "local" then
+ local u = h.sessions[user];
+ if u then
+ for k, session in pairs(u.sessions) do
+ if session.presence then
+ session.send(stanza);
+ count = count + 1;
+ end
+ end
+ end
+ end
+ stanza.attr.to = to;
+ return count;
+end
+
+return _M;
projects / prosody.git / blobdiff