2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
10 local st = require "util.stanza";
11 local datamanager = require "util.datamanager";
12 local dataform_new = require "util.dataforms".new;
13 local usermanager_user_exists = require "core.usermanager".user_exists;
14 local usermanager_create_user = require "core.usermanager".create_user;
15 local usermanager_set_password = require "core.usermanager".set_password;
16 local usermanager_delete_user = require "core.usermanager".delete_user;
17 local os_time = os.time;
18 local nodeprep = require "util.encodings".stringprep.nodeprep;
19 local jid_bare = require "util.jid".bare;
21 local compat = module:get_option_boolean("registration_compat", true);
22 local allow_registration = module:get_option_boolean("allow_registration", false);
23 local additional_fields = module:get_option("additional_registration_fields", {});
26 username = { name = "username", type = "text-single", label = "Username", required = true };
27 password = { name = "password", type = "text-private", label = "Password", required = true };
28 nick = { name = "nick", type = "text-single", label = "Nickname" };
29 name = { name = "name", type = "text-single", label = "Full Name" };
30 first = { name = "first", type = "text-single", label = "Given Name" };
31 last = { name = "last", type = "text-single", label = "Family Name" };
32 email = { name = "email", type = "text-single", label = "Email" };
33 address = { name = "address", type = "text-single", label = "Street" };
34 city = { name = "city", type = "text-single", label = "City" };
35 state = { name = "state", type = "text-single", label = "State" };
36 zip = { name = "zip", type = "text-single", label = "Postal code" };
37 phone = { name = "phone", type = "text-single", label = "Telephone number" };
38 url = { name = "url", type = "text-single", label = "Webpage" };
39 date = { name = "date", type = "text-single", label = "Birth date" };
42 local registration_form = dataform_new{
43 title = "Creating a new account";
44 instructions = "Choose a username and password for use with this service.";
50 local registration_query = st.stanza("query", {xmlns = "jabber:iq:register"})
51 :tag("instructions"):text("Choose a username and password for use with this service."):up()
53 :tag("password"):up();
55 for _, field in ipairs(additional_fields) do
56 if type(field) == "table" then
57 registration_form[#registration_form + 1] = field;
59 if field:match("%+$") then
60 field = field:sub(1, #field - 1);
61 field_map[field].required = true;
64 registration_form[#registration_form + 1] = field_map[field];
65 registration_query:tag(field):up();
68 registration_query:add_child(registration_form:form());
70 module:add_feature("jabber:iq:register");
72 local register_stream_feature = st.stanza("register", {xmlns="http://jabber.org/features/iq-register"}):up();
73 module:hook("stream-features", function(event)
74 local session, features = event.origin, event.features;
76 -- Advertise registration to unauthorized clients only.
77 if not(allow_registration) or session.type ~= "c2s_unauthed" then
81 features:add_child(register_stream_feature);
84 local function handle_registration_stanza(event)
85 local session, stanza = event.origin, event.stanza;
87 local query = stanza.tags[1];
88 if stanza.attr.type == "get" then
89 local reply = st.reply(stanza);
90 reply:tag("query", {xmlns = "jabber:iq:register"})
91 :tag("registered"):up()
92 :tag("username"):text(session.username):up()
93 :tag("password"):up();
95 else -- stanza.attr.type == "set"
96 if query.tags[1] and query.tags[1].name == "remove" then
97 local username, host = session.username, session.host;
99 local old_session_close = session.close;
100 session.close = function(session, ...)
101 session.send(st.reply(stanza));
102 return old_session_close(session, ...);
105 local ok, err = usermanager_delete_user(username, host);
108 module:log("debug", "Removing user account %s@%s failed: %s", username, host, err);
109 session.close = old_session_close;
110 session.send(st.error_reply(stanza, "cancel", "service-unavailable", err));
114 module:log("info", "User removed their account: %s@%s", username, host);
115 module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session });
117 local username = nodeprep(query:get_child("username"):get_text());
118 local password = query:get_child("password"):get_text();
119 if username and password then
120 if username == session.username then
121 if usermanager_set_password(username, password, session.host) then
122 session.send(st.reply(stanza));
124 -- TODO unable to write file, file may be locked, etc, what's the correct error?
125 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
128 session.send(st.error_reply(stanza, "modify", "bad-request"));
131 session.send(st.error_reply(stanza, "modify", "bad-request"));
138 module:hook("iq/self/jabber:iq:register:query", handle_registration_stanza);
140 module:hook("iq/host/jabber:iq:register:query", function (event)
141 local session, stanza = event.origin, event.stanza;
142 if session.type == "c2s" and jid_bare(stanza.attr.to) == session.host then
143 return handle_registration_stanza(event);
148 local function parse_response(query)
149 local form = query:get_child("x", "jabber:x:data");
151 return registration_form:data(form);
155 for _, field in ipairs(registration_form) do
156 local name, required = field.name, field.required;
157 if field_map[name] then
158 data[name] = query:get_child_text(name);
159 if (not data[name] or #data[name] == 0) and required then
160 errors[name] = "Required value missing";
171 local recent_ips = {};
172 local min_seconds_between_registrations = module:get_option("min_seconds_between_registrations");
173 local whitelist_only = module:get_option("whitelist_registration_only");
174 local whitelisted_ips = module:get_option("registration_whitelist") or { "127.0.0.1" };
175 local blacklisted_ips = module:get_option("registration_blacklist") or {};
177 for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end
178 for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end
180 module:hook("stanza/iq/jabber:iq:register:query", function(event)
181 local session, stanza = event.origin, event.stanza;
183 if not(allow_registration) or session.type ~= "c2s_unauthed" then
184 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
186 local query = stanza.tags[1];
187 if stanza.attr.type == "get" then
188 local reply = st.reply(stanza);
189 reply:add_child(registration_query);
191 elseif stanza.attr.type == "set" then
192 if query.tags[1] and query.tags[1].name == "remove" then
193 session.send(st.error_reply(stanza, "auth", "registration-required"));
195 local data, errors = parse_response(query);
197 session.send(st.error_reply(stanza, "modify", "not-acceptable"));
199 -- Check that the user is not blacklisted or registering too often
200 if not session.ip then
201 module:log("debug", "User's IP not known; can't apply blacklist/whitelist");
202 elseif blacklisted_ips[session.ip] or (whitelist_only and not whitelisted_ips[session.ip]) then
203 session.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not allowed to register an account."));
205 elseif min_seconds_between_registrations and not whitelisted_ips[session.ip] then
206 if not recent_ips[session.ip] then
207 recent_ips[session.ip] = { time = os_time(), count = 1 };
209 local ip = recent_ips[session.ip];
210 ip.count = ip.count + 1;
212 if os_time() - ip.time < min_seconds_between_registrations then
214 session.send(st.error_reply(stanza, "wait", "not-acceptable"));
220 local username, password = nodeprep(data.username), data.password;
221 data.username, data.password = nil, nil;
222 local host = module.host;
223 if not username or username == "" then
224 session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid."));
227 local user = { username = username , host = host, allowed = true }
228 module:fire_event("user-registering", user);
229 if not user.allowed then
230 session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is forbidden."));
231 elseif usermanager_user_exists(username, host) then
232 session.send(st.error_reply(stanza, "cancel", "conflict", "The requested username already exists."));
234 -- TODO unable to write file, file may be locked, etc, what's the correct error?
235 local error_reply = st.error_reply(stanza, "wait", "internal-server-error", "Failed to write data to disk.");
236 if usermanager_create_user(username, password, host) then
237 if next(data) and not datamanager.store(username, host, "account_details", data) then
238 usermanager_delete_user(username, host);
239 session.send(error_reply);
242 session.send(st.reply(stanza)); -- user created!
243 module:log("info", "User account created: %s@%s", username, host);
244 module:fire_event("user-registered", {
245 username = username, host = host, source = "mod_register",
246 session = session });
248 session.send(error_reply);