diff options
Diffstat (limited to 'plugins/mod_register.lua')
| -rw-r--r-- | plugins/mod_register.lua | 301 |
1 files changed, 3 insertions, 298 deletions
diff --git a/plugins/mod_register.lua b/plugins/mod_register.lua index c17a1fcd..763e2fd9 100644 --- a/plugins/mod_register.lua +++ b/plugins/mod_register.lua @@ -7,305 +7,10 @@ -- -local st = require "util.stanza"; -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 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 ip_util = require "util.ip"; -local new_ip = ip_util.new_ip; -local match_ip = ip_util.match; -local parse_cidr = ip_util.parse_cidr; - -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 require_encryption = module:get_option("c2s_require_encryption") or module:get_option("require_encryption"); - -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 title = module:get_option_string("registration_title", - "Creating a new account"); -local instructions = module:get_option_string("registration_instructions", - "Choose a username and password for use with this service."); - -local registration_form = dataform_new{ - title = title; - instructions = instructions; - - field_map.username; - field_map.password; -}; - -local registration_query = st.stanza("query", {xmlns = "jabber:iq:register"}) - :tag("instructions"):text(instructions):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; - elseif field_map[field] or field_map[field:sub(1, -2)] then - if field:match("%+$") then - field = field:sub(1, -2); - field_map[field].required = true; - end - registration_form[#registration_form + 1] = field_map[field]; - registration_query:tag(field):up(); - else - module:log("error", "Unknown field %q", field); - end +if allow_registration then + module:depends("register_ibr"); end -registration_query:add_child(registration_form:form()); - -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" or (require_encryption and not session.secure) then - return - end - - features:add_child(register_stream_feature); -end); - --- Password change and account deletion handler -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(self, ...) - self.send(st.reply(stanza)); - return old_session_close(self, ...); - 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, session.resource) 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 function parse_response(query) - local form = query:get_child("x", "jabber:x:data"); - if form then - return registration_form:data(form); - else - 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 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", "::1" })._items; -local blacklisted_ips = module:get_option_set("registration_blacklist", {})._items; - -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); - -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 - -local function ip_in_set(set, ip) - if set[ip] then - return true; - end - ip = new_ip(ip); - for in_set in pairs(set) do - if match_ip(ip, parse_cidr(in_set)) then - return true; - end - end - return false; -end - --- In-band registration -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 - log("debug", "Attempted registration when disabled or already authenticated"); - session.send(st.error_reply(stanza, "cancel", "service-unavailable")); - elseif require_encryption and not session.secure then - session.send(st.error_reply(stanza, "modify", "policy-violation", "Encryption is required")); - else - local query = stanza.tags[1]; - if stanza.attr.type == "get" then - local reply = st.reply(stanza); - 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 data, errors = parse_response(query); - if errors then - log("debug", "Error parsing registration form:"); - for field, err in pairs(errors) do - log("debug", "Field %q: %s", field, err); - end - 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 - log("debug", "User's IP not known; can't apply blacklist/whitelist"); - elseif ip_in_set(blacklisted_ips, session.ip) or (whitelist_only and not ip_in_set(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 throttle_max and not ip_in_set(whitelisted_ips, session.ip) then - if not check_throttle(session.ip) then - log("debug", "Registrations over limit for ip %s", session.ip or "?"); - session.send(st.error_reply(stanza, "wait", "not-acceptable")); - return true; - end - end - local username, password = nodeprep(data.username), data.password; - data.username, data.password = nil, nil; - local host = module.host; - if not username or username == "" then - log("debug", "The requested username is invalid."); - session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid.")); - return true; - end - local user = { username = username , host = host, additional = data, ip = session.ip, session = session, allowed = true } - module:fire_event("user-registering", user); - if not user.allowed then - log("debug", "Registration disallowed by module"); - session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is forbidden.")); - elseif usermanager_user_exists(username, host) then - log("debug", "Attempt to register with existing username"); - 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 - data.registered = os.time(); - if not account_details:set(username, data) then - log("debug", "Could not store extra details"); - usermanager_delete_user(username, host); - session.send(error_reply); - return true; - end - session.send(st.reply(stanza)); -- user created! - log("info", "User account created: %s@%s", username, host); - module:fire_event("user-registered", { - username = username, host = host, source = "mod_register", - session = session }); - else - log("debug", "Could not create user"); - session.send(error_reply); - end - end - end - end - end - end - return true; -end); +module:depends("user_account_management"); |