+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 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, 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 full_sessions = full_sessions;
+local bare_sessions = bare_sessions;
local modulemanager = require "core.modulemanager";
-local log = require "util.logger".init("sessionmanager");
+local logger = require "util.logger";
+local log = logger.init("sessionmanager");
local error = error;
local uuid_generate = require "util.uuid".generate;
local rm_load_roster = require "core.rostermanager".load_roster;
+local config_get = require "core.configmanager".get;
+local nameprep = require "util.encodings".stringprep.nameprep;
+
+local fire_event = require "core.eventmanager".fire_event;
+local add_task = require "util.timer".add_task;
+local gettime = require "socket".gettime;
+
+local st = require "util.stanza";
+
+local c2s_timeout = config_get("*", "core", "c2s_timeout");
local newproxy = newproxy;
local getmetatable = getmetatable;
local open_sessions = 0;
function new_session(conn)
- local session = { conn = conn, priority = 0, type = "c2s_unauthed" };
+ local session = { conn = conn, type = "c2s_unauthed", conntime = gettime() };
if true then
session.trace = newproxy(true);
- getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; print("Session got collected, now "..open_sessions.." sessions are allocated") end;
+ getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end;
end
open_sessions = open_sessions + 1;
+ log("debug", "open sessions now: ".. open_sessions);
local w = conn.write;
session.send = function (t) w(tostring(t)); end
+ session.ip = conn.ip();
+ local conn_name = "c2s"..tostring(conn):match("[a-f0-9]+$");
+ session.log = logger.init(conn_name);
+
+ if c2s_timeout then
+ add_task(c2s_timeout, function ()
+ if session.type == "c2s_unauthed" then
+ session:close("connection-timeout");
+ end
+ end);
+ end
+
return session;
end
-function destroy_session(session)
- (session.log or log)("info", "Destroying session");
- if session.host and session.username then
- if session.resource then
- hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
- end
- if hosts[session.host] and hosts[session.host].sessions[session.username] then
- 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
+function destroy_session(session, err)
+ (session.log or log)("info", "Destroying session for %s (%s@%s)", session.full_jid or "(unknown)", session.username or "(unknown)", session.host or "(unknown)");
+
+ -- Remove session/resource from user's session list
+ if session.full_jid then
+ hosts[session.host].events.fire_event("resource-unbind", {session=session, error=err});
+
+ hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
+ full_sessions[session.full_jid] = nil;
+
+ 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;
+ bare_sessions[session.username..'@'..session.host] = nil;
end
end
- session.conn = nil;
- session.disconnect = nil;
+
for k in pairs(session) do
if k ~= "trace" then
session[k] = nil;
end
end
-function send_to_session(session, data)
- log("debug", "Sending: %s", tostring(data));
- session.conn.write(tostring(data));
-end
-
function make_authenticated(session, username)
session.username = username;
if session.type == "c2s_unauthed" then
session.type = "c2s";
end
+ session.log("info", "Authenticated as %s@%s", username or "(unknown)", session.host or "(unknown)");
return true;
end
--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 = {} };
+ local sessions = { sessions = {} };
+ hosts[session.host].sessions[session.username] = sessions;
+ bare_sessions[session.username..'@'..session.host] = 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 nil, "cancel", "conflict", "Resource already exists"; -- TODO kick old resource
+ 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
+ sessions[resource]:close {
+ condition = "conflict";
+ text = "Replaced by new connection";
+ };
+ if not next(sessions) then
+ hosts[session.host].sessions[session.username] = { sessions = sessions };
+ bare_sessions[session.username.."@"..session.host] = hosts[session.host].sessions[session.username];
+ end
+ 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.resource = resource;
session.full_jid = session.username .. '@' .. session.host .. '/' .. resource;
hosts[session.host].sessions[session.username].sessions[resource] = session;
+ full_sessions[session.full_jid] = session;
session.roster = rm_load_roster(session.username, session.host);
+ hosts[session.host].events.fire_event("resource-bind", {session=session});
+
return true;
end
function streamopened(session, attr)
- local send = session.send;
- 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'?>");
- 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);
-
- send("<stream:features>");
-
- for _, feature in ipairs(features) do
- send(session, tostring(feature));
- end
-
- send("</stream:features>");
- log("info", "Stream opened successfully");
- session.notopen = nil;
+ local send = session.send;
+ session.host = attr.to or error("Client failed to specify destination hostname");
+ session.host = nameprep(session.host);
+ session.version = tonumber(attr.version) or 0;
+ session.streamid = uuid_generate();
+ (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
+
+ 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("<?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' xml:lang='en'>", session.streamid, session.host));
+
+ (session.log or log)("debug", "Sent reply <stream:stream> to client");
+ session.notopen = nil;
+
+ -- If session.secure is *false* (not nil) then it means we /were/ encrypting
+ -- since we now have a new stream header, session is secured
+ if session.secure == false then
+ session.secure = true;
+ end
+
+ local features = st.stanza("stream:features");
+ fire_event("stream-features", session, features);
+
+ send(features);
+
+end
+
+function streamclosed(session)
+ session.send("</stream:stream>");
+ session.notopen = true;
end
function send_to_available_resources(user, host, stanza)
return count;
end
-return _M;
\ No newline at end of file
+return _M;
projects / prosody.git / blobdiff