prosody
67b64995ae1e
plugins/mod_register.lua

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plugins/mod_register.lua @ 2260:67b64995ae1e

mod_register: Properly notify contacts of subscription removal on account deletion.
author Waqas Hussain <waqas20@gmail.com>
date Sat, 28 Nov 2009 11:59:06 +0500
parent 2085:64872e216e23
child 2448:542335c8a5bc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
1 -- Prosody IM
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90ce865eebd8 Update copyright notices for 2009
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2 -- Copyright (C) 2008-2009 Matthew Wild
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3 -- Copyright (C) 2008-2009 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 datamanager_store = require "util.datamanager".store;
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16 local os_time = os.time;
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17 local nodeprep = require "util.encodings".stringprep.nodeprep;
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18
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19 module:add_feature("jabber:iq:register");
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20
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21 module:add_iq_handler("c2s", "jabber:iq:register", function (session, stanza)
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22 if stanza.tags[1].name == "query" then
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23 local query = stanza.tags[1];
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24 if stanza.attr.type == "get" then
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25 local reply = st.reply(stanza);
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26 reply:tag("query", {xmlns = "jabber:iq:register"})
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27 :tag("registered"):up()
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28 :tag("username"):text(session.username):up()
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29 :tag("password"):up();
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30 session.send(reply);
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31 elseif stanza.attr.type == "set" then
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32 if query.tags[1] and query.tags[1].name == "remove" then
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33 -- TODO delete user auth data, send iq response, kick all user resources with a <not-authorized/>, delete all user data
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34 local username, host = session.username, session.host;
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35 --session.send(st.error_reply(stanza, "cancel", "not-allowed"));
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36 --return;
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37 usermanager_create_user(username, nil, host); -- Disable account
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38 -- FIXME the disabling currently allows a different user to recreate the account
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39 -- we should add an in-memory account block mode when we have threading
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40 session.send(st.reply(stanza));
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41 local roster = session.roster;
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42 for _, session in pairs(hosts[host].sessions[username].sessions) do -- disconnect all resources
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43 session:close({condition = "not-authorized", text = "Account deleted"});
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44 end
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45 -- TODO datamanager should be able to delete all user data itself
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46 datamanager.store(username, host, "vcard", nil);
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47 datamanager.store(username, host, "private", nil);
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48 datamanager.store(username, host, "offline", nil);
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49 local bare = username.."@"..host;
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50 for jid, item in pairs(roster) do
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51 if jid and jid ~= "pending" then
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52 if item.subscription == "both" or item.subscription == "from" or (roster.pending and roster.pending[jid]) then
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53 core_post_stanza(hosts[host], st.presence({type="unsubscribed", from=bare, to=jid}));
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54 end
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55 if item.subscription == "both" or item.subscription == "to" or item.ask then
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56 core_post_stanza(hosts[host], st.presence({type="unsubscribe", from=bare, to=jid}));
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57 end
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58 end
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59 end
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60 datamanager.store(username, host, "roster", nil);
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61 datamanager.store(username, host, "accounts", nil); -- delete accounts datastore at the end
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62 module:log("info", "User removed their account: %s@%s", username, host);
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63 module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session });
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64 else
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65 local username = query:child_with_name("username");
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66 local password = query:child_with_name("password");
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67 if username and password then
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68 -- FIXME shouldn't use table.concat
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69 username = nodeprep(table.concat(username));
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70 password = table.concat(password);
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71 if username == session.username then
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72 if usermanager_create_user(username, password, session.host) then -- password change -- TODO is this the right way?
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73 session.send(st.reply(stanza));
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74 else
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75 -- TODO unable to write file, file may be locked, etc, what's the correct error?
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76 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
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77 end
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78 else
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79 session.send(st.error_reply(stanza, "modify", "bad-request"));
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80 end
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81 else
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82 session.send(st.error_reply(stanza, "modify", "bad-request"));
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83 end
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84 end
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85 end
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86 else
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87 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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88 end;
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89 end);
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90
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91 local recent_ips = {};
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92 local min_seconds_between_registrations = module:get_option("min_seconds_between_registrations");
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93 local whitelist_only = module:get_option("whitelist_registration_only");
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94 local whitelisted_ips = module:get_option("registration_whitelist") or { "127.0.0.1" };
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95 local blacklisted_ips = module:get_option("registration_blacklist") or {};
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96
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97 for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end
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98 for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end
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99
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100 module:add_iq_handler("c2s_unauthed", "jabber:iq:register", function (session, stanza)
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101 if module:get_option("allow_registration") == false then
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102 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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103 elseif stanza.tags[1].name == "query" then
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104 local query = stanza.tags[1];
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105 if stanza.attr.type == "get" then
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106 local reply = st.reply(stanza);
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107 reply:tag("query", {xmlns = "jabber:iq:register"})
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108 :tag("instructions"):text("Choose a username and password for use with this service."):up()
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109 :tag("username"):up()
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110 :tag("password"):up();
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111 session.send(reply);
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112 elseif stanza.attr.type == "set" then
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113 if query.tags[1] and query.tags[1].name == "remove" then
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114 session.send(st.error_reply(stanza, "auth", "registration-required"));
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115 else
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116 local username = query:child_with_name("username");
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117 local password = query:child_with_name("password");
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118 if username and password then
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119 -- Check that the user is not blacklisted or registering too often
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120 if not session.ip then
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121 module:log("debug", "User's IP not known; can't apply blacklist/whitelist");
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122 elseif blacklisted_ips[session.ip] or (whitelist_only and not whitelisted_ips[session.ip]) then
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123 session.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not allowed to register an account."));
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124 return;
690
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
125 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
126 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
127 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
128 else
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
129 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
130 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
131
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
132 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
133 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
134 session.send(st.error_reply(stanza, "wait", "not-acceptable"));
690
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
135 return;
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
136 end
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
137 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
138 end
e901a0709005 Added rate limiting to in-band registration, and added IP [black/white]lists
Matthew Wild <mwild1@gmail.com>
parents: 665
diff changeset
139 end
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
140 -- 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
141 username = nodeprep(table.concat(username));
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
142 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
143 local host = module.host;
ef266aa8e18f mod_register: Fixed: No error was returned if username failed nodeprep.
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
144 if not username then
1859
c965b0accc7c mod_register: Added helpful text to registration error responses.
Waqas Hussain <waqas20@gmail.com>
parents: 1858
diff changeset
145 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
146 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
147 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
148 else
1857
ef266aa8e18f mod_register: Fixed: No error was returned if username failed nodeprep.
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
149 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
150 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
151 module:log("info", "User account created: %s@%s", username, host);
1184
fa6df7e83fb3 mod_register: Fire events and log on account creation/deletion
Matthew Wild <mwild1@gmail.com>
parents: 1042
diff changeset
152 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
153 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
154 session = session });
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
155 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
156 -- 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
157 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
158 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
159 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
160 else
311
513bd52e8e19 Fixed mod_register to use session.send for sending stanzas
Waqas Hussain <waqas20@gmail.com>
parents: 85
diff changeset
161 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
162 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
163 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
164 end
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
165 else
311
513bd52e8e19 Fixed mod_register to use session.send for sending stanzas
Waqas Hussain <waqas20@gmail.com>
parents: 85
diff changeset
166 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
60
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
167 end;
44800be871f5 User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
168 end);
665
09e0e9c722a3 Add allow_registration option to disable account registration
Matthew Wild <mwild1@gmail.com>
parents: 615
diff changeset
169