-- 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 hosts = _G.hosts; local st = require "util.stanza"; local datamanager = require "util.datamanager"; local usermanager_user_exists = require "core.usermanager".user_exists; local usermanager_create_user = require "core.usermanager".create_user; local usermanager_set_password = require "core.usermanager".set_password; local usermanager_delete_user = require "core.usermanager".delete_user; local os_time = os.time; local nodeprep = require "util.encodings".stringprep.nodeprep; local jid_bare = require "util.jid".bare; local compat = module:get_option_boolean("registration_compat", true); local allow_registration = module:get_option_boolean("allow_registration", true); module:add_feature("jabber:iq:register"); local register_stream_feature = st.stanza("register", {xmlns="http://jabber.org/features/iq-register"}):up(); module:hook("stream-features", function(event) local session, features = event.origin, event.features; -- Advertise registration to unauthorized clients only. if not(allow_registration) or session.type ~= "c2s_unauthed" then return end features:add_child(register_stream_feature); end); local function handle_registration_stanza(event) local session, stanza = event.origin, event.stanza; local query = stanza.tags[1]; if stanza.attr.type == "get" then local reply = st.reply(stanza); reply:tag("query", {xmlns = "jabber:iq:register"}) :tag("registered"):up() :tag("username"):text(session.username):up() :tag("password"):up(); session.send(reply); else -- stanza.attr.type == "set" if query.tags[1] and query.tags[1].name == "remove" then -- TODO delete user auth data, send iq response, kick all user resources with a , delete all user data local username, host = session.username, session.host; local ok, err = usermanager_delete_user(username, host); if not ok then module:log("debug", "Removing user account %s@%s failed: %s", username, host, err); session.send(st.error_reply(stanza, "cancel", "service-unavailable", err)); return true; end session.send(st.reply(stanza)); local roster = session.roster; for _, session in pairs(hosts[host].sessions[username].sessions) do -- disconnect all resources session:close({condition = "not-authorized", text = "Account deleted"}); end -- TODO datamanager should be able to delete all user data itself datamanager.store(username, host, "vcard", nil); datamanager.store(username, host, "private", nil); datamanager.list_store(username, host, "offline", nil); local bare = username.."@"..host; for jid, item in pairs(roster) do if jid and jid ~= "pending" then if item.subscription == "both" or item.subscription == "from" or (roster.pending and roster.pending[jid]) then core_post_stanza(hosts[host], st.presence({type="unsubscribed", from=bare, to=jid})); end if item.subscription == "both" or item.subscription == "to" or item.ask then core_post_stanza(hosts[host], st.presence({type="unsubscribe", from=bare, to=jid})); end end end datamanager.store(username, host, "roster", nil); datamanager.store(username, host, "privacy", nil); module:log("info", "User removed their account: %s@%s", username, host); module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session }); else local username = nodeprep(query:get_child("username"):get_text()); local password = query:get_child("password"):get_text(); if username and password then if username == session.username then if usermanager_set_password(username, password, session.host) then session.send(st.reply(stanza)); else -- TODO unable to write file, file may be locked, etc, what's the correct error? session.send(st.error_reply(stanza, "wait", "internal-server-error")); end else session.send(st.error_reply(stanza, "modify", "bad-request")); end else session.send(st.error_reply(stanza, "modify", "bad-request")); end end end return true; end module:hook("iq/self/jabber:iq:register:query", handle_registration_stanza); if compat then module:hook("iq/host/jabber:iq:register:query", function (event) local session, stanza = event.origin, event.stanza; if session.type == "c2s" and jid_bare(stanza.attr.to) == session.host then return handle_registration_stanza(event); end end); end local recent_ips = {}; local min_seconds_between_registrations = module:get_option("min_seconds_between_registrations"); local whitelist_only = module:get_option("whitelist_registration_only"); local whitelisted_ips = module:get_option("registration_whitelist") or { "127.0.0.1" }; local blacklisted_ips = module:get_option("registration_blacklist") or {}; for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end module:hook("stanza/iq/jabber:iq:register:query", function(event) local session, stanza = event.origin, event.stanza; if not(allow_registration) or session.type ~= "c2s_unauthed" then session.send(st.error_reply(stanza, "cancel", "service-unavailable")); else local query = stanza.tags[1]; if stanza.attr.type == "get" then local reply = st.reply(stanza); reply:tag("query", {xmlns = "jabber:iq:register"}) :tag("instructions"):text("Choose a username and password for use with this service."):up() :tag("username"):up() :tag("password"):up(); session.send(reply); elseif stanza.attr.type == "set" then if query.tags[1] and query.tags[1].name == "remove" then session.send(st.error_reply(stanza, "auth", "registration-required")); else local username = query:child_with_name("username"); local password = query:child_with_name("password"); if username and password then -- Check that the user is not blacklisted or registering too often if not session.ip then module:log("debug", "User's IP not known; can't apply blacklist/whitelist"); elseif blacklisted_ips[session.ip] or (whitelist_only and not whitelisted_ips[session.ip]) then session.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not allowed to register an account.")); return true; elseif min_seconds_between_registrations and not whitelisted_ips[session.ip] then if not recent_ips[session.ip] then recent_ips[session.ip] = { time = os_time(), count = 1 }; else local ip = recent_ips[session.ip]; ip.count = ip.count + 1; if os_time() - ip.time < min_seconds_between_registrations then ip.time = os_time(); session.send(st.error_reply(stanza, "wait", "not-acceptable")); return true; end ip.time = os_time(); end end -- FIXME shouldn't use table.concat username = nodeprep(table.concat(username)); password = table.concat(password); local host = module.host; if not username or username == "" then session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid.")); elseif usermanager_user_exists(username, host) then session.send(st.error_reply(stanza, "cancel", "conflict", "The requested username already exists.")); else if usermanager_create_user(username, password, host) then session.send(st.reply(stanza)); -- user created! module:log("info", "User account created: %s@%s", username, host); module:fire_event("user-registered", { username = username, host = host, source = "mod_register", session = session }); else -- TODO unable to write file, file may be locked, etc, what's the correct error? session.send(st.error_reply(stanza, "wait", "internal-server-error", "Failed to write data to disk.")); end end else session.send(st.error_reply(stanza, "modify", "not-acceptable")); end end end end return true; end);