X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=plugins%2Fmod_register.lua;h=fda717f723cdb7be53abdc0a314de9b0a63dd487;hb=refs%2Fheads%2Fmaster;hp=2818e3368522068d4f50391f6e4ed4e21e72ef31;hpb=9bc146b298d9b9e4fe8511bdb16518d1e671e760;p=prosody.git diff --git a/plugins/mod_register.lua b/plugins/mod_register.lua index 2818e336..fda717f7 100644 --- a/plugins/mod_register.lua +++ b/plugins/mod_register.lua @@ -1,171 +1,270 @@ -- 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 dataform_new = require "util.dataforms".new; 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 datamanager_store = require "util.datamanager".store; -local os_time = os.time; +local usermanager_delete_user = require "core.usermanager".delete_user; local nodeprep = require "util.encodings".stringprep.nodeprep; +local jid_bare = require "util.jid".bare; +local create_throttle = require "util.throttle".create; +local new_cache = require "util.cache".new; + +local compat = module:get_option_boolean("registration_compat", true); +local allow_registration = module:get_option_boolean("allow_registration", false); +local additional_fields = module:get_option("additional_registration_fields", {}); + +local account_details = module:open_store("account_details"); + +local field_map = { + username = { name = "username", type = "text-single", label = "Username", required = true }; + password = { name = "password", type = "text-private", label = "Password", required = true }; + nick = { name = "nick", type = "text-single", label = "Nickname" }; + name = { name = "name", type = "text-single", label = "Full Name" }; + first = { name = "first", type = "text-single", label = "Given Name" }; + last = { name = "last", type = "text-single", label = "Family Name" }; + email = { name = "email", type = "text-single", label = "Email" }; + address = { name = "address", type = "text-single", label = "Street" }; + city = { name = "city", type = "text-single", label = "City" }; + state = { name = "state", type = "text-single", label = "State" }; + zip = { name = "zip", type = "text-single", label = "Postal code" }; + phone = { name = "phone", type = "text-single", label = "Telephone number" }; + url = { name = "url", type = "text-single", label = "Webpage" }; + date = { name = "date", type = "text-single", label = "Birth date" }; +}; + +local registration_form = dataform_new{ + title = "Creating a new account"; + instructions = "Choose a username and password for use with this service."; + + field_map.username; + field_map.password; +}; + +local registration_query = st.stanza("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(); + +for _, field in ipairs(additional_fields) do + if type(field) == "table" then + registration_form[#registration_form + 1] = field; + else + if field:match("%+$") then + field = field:sub(1, #field - 1); + field_map[field].required = true; + end + + registration_form[#registration_form + 1] = field_map[field]; + registration_query:tag(field):up(); + end +end +registration_query:add_child(registration_form:form()); module:add_feature("jabber:iq:register"); -module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza) - if stanza.tags[1].name == "query" then - 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); - elseif stanza.attr.type == "set" then - 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; - --session.send(st.error_reply(stanza, "cancel", "not-allowed")); - --return; - --usermanager_set_password(username, host, nil); -- Disable account - -- FIXME the disabling currently allows a different user to recreate the account - -- we should add an in-memory account block mode when we have threading +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 log = session.log or module._log; + + 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 + local username, host = session.username, session.host; + + -- This one weird trick sends a reply to this stanza before the user is deleted + local old_session_close = session.close; + session.close = function(session, ...) 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); - datamanager.store(username, host, "accounts", nil); -- delete accounts datastore at the end - 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 = query:child_with_name("username"); - local password = query:child_with_name("password"); - if username and password then - -- FIXME shouldn't use table.concat - username = nodeprep(table.concat(username)); - password = table.concat(password); - if username == session.username then - if usermanager_set_password(username, session.host, password) 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 + return old_session_close(session, ...); + end + + local ok, err = usermanager_delete_user(username, host); + + if not ok then + log("debug", "Removing user account %s@%s failed: %s", username, host, err); + session.close = old_session_close; + session.send(st.error_reply(stanza, "cancel", "service-unavailable", err)); + return true; + end + + 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_text("username")); + local password = query:get_child_text("password"); + 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 - session.send(st.error_reply(stanza, "modify", "bad-request")); + -- 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 function parse_response(query) + local form = query:get_child("x", "jabber:x:data"); + if form then + return registration_form:data(form); else - session.send(st.error_reply(stanza, "cancel", "service-unavailable")); - end; -end); + local data = {}; + local errors = {}; + for _, field in ipairs(registration_form) do + local name, required = field.name, field.required; + if field_map[name] then + data[name] = query:get_child_text(name); + if (not data[name] or #data[name] == 0) and required then + errors[name] = "Required value missing"; + end + end + end + if next(errors) then + return data, errors; + end + return data; + 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 {}; +local min_seconds_between_registrations = module:get_option_number("min_seconds_between_registrations"); +local whitelist_only = module:get_option_boolean("whitelist_registration_only"); +local whitelisted_ips = module:get_option_set("registration_whitelist", { "127.0.0.1" })._items; +local blacklisted_ips = module:get_option_set("registration_blacklist", {})._items; -for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end -for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end +local throttle_max = module:get_option_number("registration_throttle_max", min_seconds_between_registrations and 1); +local throttle_period = module:get_option_number("registration_throttle_period", min_seconds_between_registrations); +local throttle_cache_size = module:get_option_number("registration_throttle_cache_size", 100); +local blacklist_overflow = module:get_option_boolean("blacklist_on_registration_throttle_overload", false); -module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, stanza) - if module:get_option("allow_registration") == false then +local throttle_cache = new_cache(throttle_cache_size, blacklist_overflow and function (ip, throttle) + if not throttle:peek() then + module:log("info", "Adding ip %s to registration blacklist", ip); + blacklisted_ips[ip] = true; + end +end or nil); + +local function check_throttle(ip) + if not throttle_max then return true end + local throttle = throttle_cache:get(ip); + if not throttle then + throttle = create_throttle(throttle_max, throttle_period); + end + throttle_cache:set(ip, throttle); + return throttle:poll(1); +end + +module:hook("stanza/iq/jabber:iq:register:query", function(event) + local session, stanza = event.origin, event.stanza; + local log = session.log or module._log; + + if not(allow_registration) or session.type ~= "c2s_unauthed" then session.send(st.error_reply(stanza, "cancel", "service-unavailable")); - elseif stanza.tags[1].name == "query" then + 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(); + reply:add_child(registration_query); 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 + local data, errors = parse_response(query); + if errors then + session.send(st.error_reply(stanza, "modify", "not-acceptable")); + else -- 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"); + 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; + 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; - end - ip.time = os_time(); + if check_throttle(session.ip) then + session.send(st.error_reply(stanza, "wait", "not-acceptable")); + return true; end end - -- FIXME shouldn't use table.concat - username = nodeprep(table.concat(username)); - password = table.concat(password); + local username, password = nodeprep(data.username), data.password; + data.username, data.password = nil, nil; local host = module.host; if not username or username == "" then session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid.")); + return true; + end + local user = { username = username , host = host, allowed = true } + module:fire_event("user-registering", user); + if not user.allowed then + session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is forbidden.")); elseif usermanager_user_exists(username, host) then session.send(st.error_reply(stanza, "cancel", "conflict", "The requested username already exists.")); else + -- TODO unable to write file, file may be locked, etc, what's the correct error? + local error_reply = st.error_reply(stanza, "wait", "internal-server-error", "Failed to write data to disk."); if usermanager_create_user(username, password, host) then + if next(data) and not account_details:set(username, data) then + usermanager_delete_user(username, host); + session.send(error_reply); + return true; + end session.send(st.reply(stanza)); -- user created! - module:log("info", "User account created: %s@%s", username, host); - module:fire_event("user-registered", { + 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.")); + session.send(error_reply); end end - else - session.send(st.error_reply(stanza, "modify", "not-acceptable")); end end end - else - session.send(st.error_reply(stanza, "cancel", "service-unavailable")); - end; + end + return true; end); -