prosody
d2d47fde9811
plugins/mod_register.lua

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plugins/mod_register.lua @ 4270:d2d47fde9811

mod_register: Change the default for 'allow_registration' from true to false, most users shouldn't be affected as allow_registration is already explicitly set in the default config file.
author Matthew Wild <mwild1@gmail.com>
date Sat, 28 May 2011 00:23:05 +0100
parent 4269:cd4011af8b4c
child 4398:acc37e221940
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rev   line source
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diff changeset
1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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10 local hosts = _G.hosts;
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11 local st = require "util.stanza";
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12 local datamanager = require "util.datamanager";
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13 local usermanager_user_exists = require "core.usermanager".user_exists;
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14 local usermanager_create_user = require "core.usermanager".create_user;
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15 local usermanager_set_password = require "core.usermanager".set_password;
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16 local usermanager_delete_user = require "core.usermanager".delete_user;
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17 local os_time = os.time;
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cc180d25dbeb Fixed: mod_register: Node prepping was not being applied to usernames (part of issue #57)
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18 local nodeprep = require "util.encodings".stringprep.nodeprep;
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19 local jid_bare = require "util.jid".bare;
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20
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21 local compat = module:get_option_boolean("registration_compat", true);
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d2d47fde9811 mod_register: Change the default for 'allow_registration' from true to false, most users shouldn't be affected as allow_registration is already explicitly set in the default config file.
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22 local allow_registration = module:get_option_boolean("allow_registration", false);
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23
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24 module:add_feature("jabber:iq:register");
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25
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26 local register_stream_feature = st.stanza("register", {xmlns="http://jabber.org/features/iq-register"}):up();
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27 module:hook("stream-features", function(event)
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28 local session, features = event.origin, event.features;
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29
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30 -- Advertise registration to unauthorized clients only.
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cd4011af8b4c mod_register: Move allow_registration option into an upvalue for efficiency (now it is being checked on every new c2s stream)
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31 if not(allow_registration) or session.type ~= "c2s_unauthed" then
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32 return
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33 end
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34
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35 features:add_child(register_stream_feature);
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36 end);
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37
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38 local function handle_registration_stanza(event)
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39 local session, stanza = event.origin, event.stanza;
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40
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41 local query = stanza.tags[1];
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42 if stanza.attr.type == "get" then
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43 local reply = st.reply(stanza);
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44 reply:tag("query", {xmlns = "jabber:iq:register"})
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45 :tag("registered"):up()
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46 :tag("username"):text(session.username):up()
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47 :tag("password"):up();
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48 session.send(reply);
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49 else -- stanza.attr.type == "set"
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50 if query.tags[1] and query.tags[1].name == "remove" then
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51 -- TODO delete user auth data, send iq response, kick all user resources with a <not-authorized/>, delete all user data
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52 local username, host = session.username, session.host;
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53
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54 local ok, err = usermanager_delete_user(username, host);
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55
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56 if not ok then
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57 module:log("debug", "Removing user account %s@%s failed: %s", username, host, err);
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58 session.send(st.error_reply(stanza, "cancel", "service-unavailable", err));
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59 return true;
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60 end
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61
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62 session.send(st.reply(stanza));
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63 local roster = session.roster;
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64 for _, session in pairs(hosts[host].sessions[username].sessions) do -- disconnect all resources
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65 session:close({condition = "not-authorized", text = "Account deleted"});
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66 end
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67 -- TODO datamanager should be able to delete all user data itself
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68 datamanager.store(username, host, "vcard", nil);
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69 datamanager.store(username, host, "private", nil);
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70 datamanager.list_store(username, host, "offline", nil);
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71 local bare = username.."@"..host;
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72 for jid, item in pairs(roster) do
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73 if jid and jid ~= "pending" then
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74 if item.subscription == "both" or item.subscription == "from" or (roster.pending and roster.pending[jid]) then
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75 core_post_stanza(hosts[host], st.presence({type="unsubscribed", from=bare, to=jid}));
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76 end
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77 if item.subscription == "both" or item.subscription == "to" or item.ask then
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78 core_post_stanza(hosts[host], st.presence({type="unsubscribe", from=bare, to=jid}));
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79 end
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80 end
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81 end
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82 datamanager.store(username, host, "roster", nil);
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83 datamanager.store(username, host, "privacy", nil);
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84 module:log("info", "User removed their account: %s@%s", username, host);
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85 module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session });
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86 else
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87 local username = nodeprep(query:get_child("username"):get_text());
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88 local password = query:get_child("password"):get_text();
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89 if username and password then
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90 if username == session.username then
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91 if usermanager_set_password(username, password, session.host) then
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92 session.send(st.reply(stanza));
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93 else
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94 -- TODO unable to write file, file may be locked, etc, what's the correct error?
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95 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
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96 end
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97 else
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98 session.send(st.error_reply(stanza, "modify", "bad-request"));
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99 end
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100 else
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101 session.send(st.error_reply(stanza, "modify", "bad-request"));
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102 end
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103 end
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104 end
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105 return true;
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106 end
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107
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108 module:hook("iq/self/jabber:iq:register:query", handle_registration_stanza);
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109 if compat then
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110 module:hook("iq/host/jabber:iq:register:query", function (event)
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111 local session, stanza = event.origin, event.stanza;
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112 if session.type == "c2s" and jid_bare(stanza.attr.to) == session.host then
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113 return handle_registration_stanza(event);
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114 end
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115 end);
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116 end
60
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117
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118 local recent_ips = {};
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119 local min_seconds_between_registrations = module:get_option("min_seconds_between_registrations");
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120 local whitelist_only = module:get_option("whitelist_registration_only");
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121 local whitelisted_ips = module:get_option("registration_whitelist") or { "127.0.0.1" };
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122 local blacklisted_ips = module:get_option("registration_blacklist") or {};
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123
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124 for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
125 for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
126
3529
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
127 module:hook("stanza/iq/jabber:iq:register:query", function(event)
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
128 local session, stanza = event.origin, event.stanza;
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
129
4269
cd4011af8b4c mod_register: Move allow_registration option into an upvalue for efficiency (now it is being checked on every new c2s stream)
Matthew Wild <mwild1@gmail.com>
parents: 4268
diff changeset
130 if not(allow_registration) or session.type ~= "c2s_unauthed" then
665
09e0e9c722a3 Add allow_registration option to disable account registration
Matthew Wild <mwild1@gmail.com>
parents: 615
diff changeset
131 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
3529
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
132 else
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
133 local query = stanza.tags[1];
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
134 if stanza.attr.type == "get" then
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
135 local reply = st.reply(stanza);
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
136 reply:tag("query", {xmlns = "jabber:iq:register"})
44800be871f5 User registration, etc (jabber:iq:register)
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parents:
diff changeset
137 :tag("instructions"):text("Choose a username and password for use with this service."):up()
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
138 :tag("username"):up()
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
139 :tag("password"):up();
311
513bd52e8e19 Fixed mod_register to use session.send for sending stanzas
Waqas Hussain <waqas20@gmail.com>
parents: 85
diff changeset
140 session.send(reply);
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
141 elseif stanza.attr.type == "set" then
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
142 if query.tags[1] and query.tags[1].name == "remove" then
311
513bd52e8e19 Fixed mod_register to use session.send for sending stanzas
Waqas Hussain <waqas20@gmail.com>
parents: 85
diff changeset
143 session.send(st.error_reply(stanza, "auth", "registration-required"));
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
144 else
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
145 local username = query:child_with_name("username");
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
146 local password = query:child_with_name("password");
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
147 if username and password then
690
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
148 -- Check that the user is not blacklisted or registering too often
2085
64872e216e23 mod_register: Log a debug message when a session's IP is not available.
Waqas Hussain <waqas20@gmail.com>
parents: 1861
diff changeset
149 if not session.ip then
64872e216e23 mod_register: Log a debug message when a session's IP is not available.
Waqas Hussain <waqas20@gmail.com>
parents: 1861
diff changeset
150 module:log("debug", "User's IP not known; can't apply blacklist/whitelist");
64872e216e23 mod_register: Log a debug message when a session's IP is not available.
Waqas Hussain <waqas20@gmail.com>
parents: 1861
diff changeset
151 elseif blacklisted_ips[session.ip] or (whitelist_only and not whitelisted_ips[session.ip]) then
1859
c965b0accc7c mod_register: Added helpful text to registration error responses.
Waqas Hussain <waqas20@gmail.com>
parents: 1858
diff changeset
152 session.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not allowed to register an account."));
3529
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
153 return true;
690
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
154 elseif min_seconds_between_registrations and not whitelisted_ips[session.ip] then
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
155 if not recent_ips[session.ip] then
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
156 recent_ips[session.ip] = { time = os_time(), count = 1 };
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
157 else
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
158 local ip = recent_ips[session.ip];
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
159 ip.count = ip.count + 1;
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
160
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
161 if os_time() - ip.time < min_seconds_between_registrations then
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
162 ip.time = os_time();
1858
49eef8e19a71 mod_register: Changed error type for hitting registration rate limit from 'cancel' to 'wait'.
Waqas Hussain <waqas20@gmail.com>
parents: 1857
diff changeset
163 session.send(st.error_reply(stanza, "wait", "not-acceptable"));
3529
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
164 return true;
690
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
165 end
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
166 ip.time = os_time();
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
167 end
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
168 end
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
169 -- FIXME shouldn't use table.concat
927
cc180d25dbeb Fixed: mod_register: Node prepping was not being applied to usernames (part of issue #57)
Waqas Hussain <waqas20@gmail.com>
parents: 926
diff changeset
170 username = nodeprep(table.concat(username));
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
171 password = table.concat(password);
1857
ef266aa8e18f mod_register: Fixed: No error was returned if username failed nodeprep.
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
172 local host = module.host;
2448
542335c8a5bc mod_register: Return a <not-acceptable/> error on empty usernames (thanks Neustradamus).
Waqas Hussain <waqas20@gmail.com>
parents: 2260
diff changeset
173 if not username or username == "" then
1859
c965b0accc7c mod_register: Added helpful text to registration error responses.
Waqas Hussain <waqas20@gmail.com>
parents: 1858
diff changeset
174 session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid."));
1857
ef266aa8e18f mod_register: Fixed: No error was returned if username failed nodeprep.
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
175 elseif usermanager_user_exists(username, host) then
1859
c965b0accc7c mod_register: Added helpful text to registration error responses.
Waqas Hussain <waqas20@gmail.com>
parents: 1858
diff changeset
176 session.send(st.error_reply(stanza, "cancel", "conflict", "The requested username already exists."));
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
177 else
1857
ef266aa8e18f mod_register: Fixed: No error was returned if username failed nodeprep.
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
178 if usermanager_create_user(username, password, host) then
311
513bd52e8e19 Fixed mod_register to use session.send for sending stanzas
Waqas Hussain <waqas20@gmail.com>
parents: 85
diff changeset
179 session.send(st.reply(stanza)); -- user created!
1857
ef266aa8e18f mod_register: Fixed: No error was returned if username failed nodeprep.
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
180 module:log("info", "User account created: %s@%s", username, host);
3540
bc139431830b Monster whitespace commit (beware the whitespace monster).
Waqas Hussain <waqas20@gmail.com>
parents: 3529
diff changeset
181 module:fire_event("user-registered", {
1857
ef266aa8e18f mod_register: Fixed: No error was returned if username failed nodeprep.
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
182 username = username, host = host, source = "mod_register",
1189
63ed3902f357 mod_register: Attach session to user-registered and user-deregistered events
Matthew Wild <mwild1@gmail.com>
parents: 1184
diff changeset
183 session = session });
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
184 else
85
a115b99419ad Added: mod_register now replies with an error stanza when file write fails
Waqas Hussain <waqas20@gmail.com>
parents: 63
diff changeset
185 -- TODO unable to write file, file may be locked, etc, what's the correct error?
1859
c965b0accc7c mod_register: Added helpful text to registration error responses.
Waqas Hussain <waqas20@gmail.com>
parents: 1858
diff changeset
186 session.send(st.error_reply(stanza, "wait", "internal-server-error", "Failed to write data to disk."));
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
187 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
188 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
189 else
311
513bd52e8e19 Fixed mod_register to use session.send for sending stanzas
Waqas Hussain <waqas20@gmail.com>
parents: 85
diff changeset
190 session.send(st.error_reply(stanza, "modify", "not-acceptable"));
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
191 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
192 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
193 end
3529
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
194 end
3f9cc12308aa mod_register: Updated to use the new events API.
Waqas Hussain <waqas20@gmail.com>
parents: 3394
diff changeset
195 return true;
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
196 end);