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 hosts = _G.hosts;
11 local st = require "util.stanza";
12 local datamanager = require "util.datamanager";
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 datamanager_store = require "util.datamanager".store;
17 local os_time = os.time;
18 local nodeprep = require "util.encodings".stringprep.nodeprep;
20 module:add_feature("jabber:iq:register");
22 module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza)
23 if stanza.tags[1].name == "query" then
24 local query = stanza.tags[1];
25 if stanza.attr.type == "get" then
26 local reply = st.reply(stanza);
27 reply:tag("query", {xmlns = "jabber:iq:register"})
28 :tag("registered"):up()
29 :tag("username"):text(session.username):up()
30 :tag("password"):up();
32 elseif stanza.attr.type == "set" then
33 if query.tags[1] and query.tags[1].name == "remove" then
34 -- TODO delete user auth data, send iq response, kick all user resources with a <not-authorized/>, delete all user data
35 local username, host = session.username, session.host;
36 --session.send(st.error_reply(stanza, "cancel", "not-allowed"));
38 usermanager_set_password(username, host, nil); -- Disable account
39 -- FIXME the disabling currently allows a different user to recreate the account
40 -- we should add an in-memory account block mode when we have threading
41 session.send(st.reply(stanza));
42 local roster = session.roster;
43 for _, session in pairs(hosts[host].sessions[username].sessions) do -- disconnect all resources
44 session:close({condition = "not-authorized", text = "Account deleted"});
46 -- TODO datamanager should be able to delete all user data itself
47 datamanager.store(username, host, "vcard", nil);
48 datamanager.store(username, host, "private", nil);
49 datamanager.store(username, host, "offline", nil);
50 local bare = username.."@"..host;
51 for jid, item in pairs(roster) do
52 if jid and jid ~= "pending" then
53 if item.subscription == "both" or item.subscription == "from" or (roster.pending and roster.pending[jid]) then
54 core_post_stanza(hosts[host], st.presence({type="unsubscribed", from=bare, to=jid}));
56 if item.subscription == "both" or item.subscription == "to" or item.ask then
57 core_post_stanza(hosts[host], st.presence({type="unsubscribe", from=bare, to=jid}));
61 datamanager.store(username, host, "roster", nil);
62 datamanager.store(username, host, "accounts", nil); -- delete accounts datastore at the end
63 module:log("info", "User removed their account: %s@%s", username, host);
64 module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session });
66 local username = query:child_with_name("username");
67 local password = query:child_with_name("password");
68 if username and password then
69 -- FIXME shouldn't use table.concat
70 username = nodeprep(table.concat(username));
71 password = table.concat(password);
72 if username == session.username then
73 if usermanager_set_password(username, session.host, password) then
74 session.send(st.reply(stanza));
76 -- TODO unable to write file, file may be locked, etc, what's the correct error?
77 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
80 session.send(st.error_reply(stanza, "modify", "bad-request"));
83 session.send(st.error_reply(stanza, "modify", "bad-request"));
88 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
92 local recent_ips = {};
93 local min_seconds_between_registrations = module:get_option("min_seconds_between_registrations");
94 local whitelist_only = module:get_option("whitelist_registration_only");
95 local whitelisted_ips = module:get_option("registration_whitelist") or { "127.0.0.1" };
96 local blacklisted_ips = module:get_option("registration_blacklist") or {};
98 for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end
99 for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end
101 module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, stanza)
102 if module:get_option("allow_registration") == false then
103 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
104 elseif stanza.tags[1].name == "query" then
105 local query = stanza.tags[1];
106 if stanza.attr.type == "get" then
107 local reply = st.reply(stanza);
108 reply:tag("query", {xmlns = "jabber:iq:register"})
109 :tag("instructions"):text("Choose a username and password for use with this service."):up()
110 :tag("username"):up()
111 :tag("password"):up();
113 elseif stanza.attr.type == "set" then
114 if query.tags[1] and query.tags[1].name == "remove" then
115 session.send(st.error_reply(stanza, "auth", "registration-required"));
117 local username = query:child_with_name("username");
118 local password = query:child_with_name("password");
119 if username and password then
120 -- Check that the user is not blacklisted or registering too often
121 if not session.ip then
122 module:log("debug", "User's IP not known; can't apply blacklist/whitelist");
123 elseif blacklisted_ips[session.ip] or (whitelist_only and not whitelisted_ips[session.ip]) then
124 session.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not allowed to register an account."));
126 elseif min_seconds_between_registrations and not whitelisted_ips[session.ip] then
127 if not recent_ips[session.ip] then
128 recent_ips[session.ip] = { time = os_time(), count = 1 };
130 local ip = recent_ips[session.ip];
131 ip.count = ip.count + 1;
133 if os_time() - ip.time < min_seconds_between_registrations then
135 session.send(st.error_reply(stanza, "wait", "not-acceptable"));
141 -- FIXME shouldn't use table.concat
142 username = nodeprep(table.concat(username));
143 password = table.concat(password);
144 local host = module.host;
145 if not username or username == "" then
146 session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid."));
147 elseif usermanager_user_exists(username, host) then
148 session.send(st.error_reply(stanza, "cancel", "conflict", "The requested username already exists."));
150 if usermanager_create_user(username, password, host) then
151 session.send(st.reply(stanza)); -- user created!
152 module:log("info", "User account created: %s@%s", username, host);
153 module:fire_event("user-registered", {
154 username = username, host = host, source = "mod_register",
155 session = session });
157 -- TODO unable to write file, file may be locked, etc, what's the correct error?
158 session.send(st.error_reply(stanza, "wait", "internal-server-error", "Failed to write data to disk."));
162 session.send(st.error_reply(stanza, "modify", "not-acceptable"));
167 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));