X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=core%2Fsessionmanager.lua;h=426763f51b575a06fa922a097d63cf1b36aeb134;hb=c269396a37a8bef1b71982f2cdd336324eb72d07;hp=59f0eadf8087910294dad2feb31b21d11641bb5c;hpb=b155bce5da7c12fe5c34366c1197978f49d34239;p=prosody.git diff --git a/core/sessionmanager.lua b/core/sessionmanager.lua index 59f0eadf..426763f5 100644 --- a/core/sessionmanager.lua +++ b/core/sessionmanager.lua @@ -1,6 +1,6 @@ -- Prosody IM --- Copyright (C) 2008-2009 Matthew Wild --- Copyright (C) 2008-2009 Waqas Hussain +-- 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. @@ -8,10 +8,8 @@ -local tonumber, tostring = tonumber, tostring; +local tonumber, tostring, setmetatable = tonumber, tostring, setmetatable; 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; @@ -26,13 +24,18 @@ 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 fire_event = require "core.eventmanager".fire_event; - +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; @@ -48,40 +51,88 @@ function new_session(conn) 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) w(tostring(t)); end - session.ip = conn.ip(); + session.send = function (t) + if t.name then + t = filter("stanzas/out", t); + end + if t then + t = filter("bytes/out", tostring(t)); + if t then + return w(conn, t); + end + end + 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 +local resting_session = { -- Resting, not dead + destroyed = true; + type = "c2s_destroyed"; + close = function (session) + session.log("debug", "Attempt to close already-closed session"); + end; + filter = function (type, data) return data; end; + }; resting_session.__index = resting_session; + +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 + session[k] = nil; + end + end + + function session.send(data) log("debug", "Discarding data sent to resting session: %s", tostring(data)); 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)"); + if session.destroyed then return; end -- 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; + 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 + + host_session.events.fire_event("resource-unbind", {session=session, error=err}); end - for k in pairs(session) do - if k ~= "trace" then - session[k] = nil; - end - end + retire_session(session); end function make_authenticated(session, username) + username = nodeprep(username); + if not username or #username == 0 then return nil, "Invalid username"; end session.username = username; if session.type == "c2s_unauthed" then session.type = "c2s"; @@ -97,7 +148,8 @@ function bind_resource(session, resource) 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(); + 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 @@ -108,7 +160,7 @@ function bind_resource(session, resource) 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"; + return nil, "cancel", "resource-constraint", "Resource limit reached; only "..limit.." resources allowed"; end if sessions[resource] then -- Resource conflict @@ -146,7 +198,19 @@ function bind_resource(session, 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); + local err; + session.roster, err = rm_load_roster(session.username, session.host); + if err then + full_sessions[session.full_jid] = nil; + hosts[session.host].sessions[session.username].sessions[resource] = nil; + session.full_jid = nil; + session.resource = nil; + if next(bare_sessions[session.username..'@'..session.host].sessions) == nil then + bare_sessions[session.username..'@'..session.host] = nil; + hosts[session.host].sessions[session.username] = nil; + end + return nil, "cancel", "internal-server-error", "Error loading roster"; + end hosts[session.host].events.fire_event("resource-bind", {session=session}); @@ -155,58 +219,75 @@ end function streamopened(session, attr) local send = session.send; - session.host = attr.to or error("Client failed to specify destination hostname"); + 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 = m_random(1000000, 99999999); + session.streamid = uuid_generate(); (session.log or session)("debug", "Client sent opening to %s", session.host); - - send(""); - send(format("", session.streamid, 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(""); + send(format("", session.streamid, session.host)); + + (session.log or log)("debug", "Sent reply 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); - - (session.log or log)("debug", "Sent reply to client"); - session.notopen = nil; + end function streamclosed(session) - session.send(""); - session.notopen = true; + session.log("debug", "Received "); + session:close(); end function send_to_available_resources(user, host, stanza) + local jid = user.."@"..host; 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 + local user = bare_sessions[jid]; + if user then + for k, session in pairs(user.sessions) do + if session.presence then + session.send(stanza); + count = count + 1; + end + end + end + return count; +end + +function send_to_interested_resources(user, host, stanza) + local jid = user.."@"..host; + local count = 0; + local user = bare_sessions[jid]; + if user then + for k, session in pairs(user.sessions) do + if session.interested then + session.send(stanza); + count = count + 1; end end end - stanza.attr.to = to; return count; end