diff options
Diffstat (limited to 'core/sessionmanager.lua')
| -rw-r--r-- | core/sessionmanager.lua | 132 |
1 files changed, 30 insertions, 102 deletions
diff --git a/core/sessionmanager.lua b/core/sessionmanager.lua index d36591bf..5f7f688e 100644 --- a/core/sessionmanager.lua +++ b/core/sessionmanager.lua @@ -1,57 +1,33 @@ -- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain --- +-- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- - - -local tonumber, tostring, setmetatable = tonumber, tostring, setmetatable; -local ipairs, pairs, print, next= ipairs, pairs, print, next; -local format = import("string", "format"); +local tostring, setmetatable = tostring, setmetatable; +local pairs, next= pairs, next; local hosts = hosts; local full_sessions = full_sessions; local bare_sessions = bare_sessions; -local modulemanager = require "core.modulemanager"; 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 resourceprep = require "util.encodings".stringprep.resourceprep; local nodeprep = require "util.encodings".stringprep.nodeprep; +local uuid_generate = require "util.uuid".generate; local initialize_filters = require "util.filters".initialize; -local fire_event = prosody.events.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; - module "sessionmanager" -local open_sessions = 0; - function new_session(conn) 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; end; - end - open_sessions = open_sessions + 1; - log("debug", "open sessions now: ".. open_sessions); - local filter = initialize_filters(session); local w = conn.write; session.send = function (t) @@ -66,17 +42,9 @@ function new_session(conn) end end session.ip = conn:ip(); - local conn_name = "c2s"..tostring(conn):match("[a-f0-9]+$"); + local conn_name = "c2s"..tostring(session):match("[a-f0-9]+$"); 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 @@ -92,34 +60,41 @@ local resting_session = { -- Resting, not dead function retire_session(session) local log = session.log or log; for k in pairs(session) do - if k ~= "trace" and k ~= "log" and k ~= "id" then + if k ~= "log" and k ~= "id" then session[k] = nil; end end - function session.send(data) log("debug", "Discarding data sent to resting session: %s", tostring(data)); end + function session.send(data) log("debug", "Discarding data sent to resting session: %s", tostring(data)); return false; end function session.data(data) log("debug", "Discarding data received from resting session: %s", tostring(data)); end return setmetatable(session, resting_session); 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)"); + (session.log or log)("debug", "Destroying session for %s (%s@%s)%s", session.full_jid or "(unknown)", session.username or "(unknown)", session.host or "(unknown)", err and (": "..err) or ""); if session.destroyed then return; end - + -- Remove session/resource from user's session list if session.full_jid then - hosts[session.host].sessions[session.username].sessions[session.resource] = nil; + local host_session = hosts[session.host]; + + -- Allow plugins to prevent session destruction + if host_session.events.fire_event("pre-resource-unbind", {session=session, error=err}) then + return; + end + + host_session.sessions[session.username].sessions[session.resource] = nil; full_sessions[session.full_jid] = nil; - - if not next(hosts[session.host].sessions[session.username].sessions) then + + if not next(host_session.sessions[session.username].sessions) then log("debug", "All resources of %s are now offline", session.username); - hosts[session.host].sessions[session.username] = nil; + host_session.sessions[session.username] = nil; bare_sessions[session.username..'@'..session.host] = nil; end - hosts[session.host].events.fire_event("resource-unbind", {session=session, error=err}); + host_session.events.fire_event("resource-unbind", {session=session, error=err}); end - + retire_session(session); end @@ -144,20 +119,16 @@ function bind_resource(session, resource) resource = resourceprep(resource); resource = resource ~= "" and 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 local sessions = { sessions = {} }; hosts[session.host].sessions[session.username] = sessions; bare_sessions[session.username..'@'..session.host] = sessions; else 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", "resource-constraint", "Resource limit reached; only "..limit.." resources allowed"; - end if sessions[resource] then -- Resource conflict - local policy = config_get(session.host, "core", "conflict_resolve"); + local policy = config_get(session.host, "conflict_resolve"); local increment; if policy == "random" then resource = uuid_generate(); @@ -185,12 +156,12 @@ function bind_resource(session, resource) 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; - + local err; session.roster, err = rm_load_roster(session.username, session.host); if err then @@ -202,56 +173,13 @@ function bind_resource(session, resource) bare_sessions[session.username..'@'..session.host] = nil; hosts[session.host].sessions[session.username] = nil; end + session.log("error", "Roster loading failed: %s", err); return nil, "cancel", "internal-server-error", "Error loading roster"; end - - 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; - if not session.host then - session:close{ condition = "improper-addressing", - text = "A 'to' attribute is required on stream headers" }; - return; - end - 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"); - hosts[session.host].events.fire_event("stream-features", { origin = session, features = features }); - fire_event("stream-features", session, features); - - send(features); - -end + hosts[session.host].events.fire_event("resource-bind", {session=session}); -function streamclosed(session) - session.log("debug", "Received </stream:stream>"); - session:close(); + return true; end function send_to_available_resources(user, host, stanza) |