Mercurial > prosody-modules

annotate mod_captcha_registration/modules/mod_register.lua @ 1934:6c569c481ffa

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mod_auth_custom_http: Add README
author Kim Alvefur <zash@zash.se>
date Sat, 24 Oct 2015 14:01:40 +0200
parents 985bfc6e8cad
children 11fdfd73a527
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mrDoctorWho <mrdoctorwho@gmail.com>
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1 -- Prosody IM
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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 -- Modifications copyright (C) 2014 mrDoctorWho
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9
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10
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11 local st = require "util.stanza";
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12 local dataform_new = require "util.dataforms".new;
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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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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 local timer = require "util.timer";
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21
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22
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23 local math = require "math";
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24 local captcha = require "captcha";
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25
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27
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28 local base64 = require "util.encodings".base64.encode;
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29 local sha1 = require "util.hashes".sha1;
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30
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31
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32 local captcha_ids = {};
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33
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34 local config = module:get_option("captcha_config") or {};
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35
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36
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37 local compat = module:get_option_boolean("registration_compat", true);
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38 local allow_registration = module:get_option_boolean("allow_registration", false);
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39 local additional_fields = module:get_option("additional_registration_fields", {});
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40
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41 local account_details = module:open_store("account_details");
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42
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43 local field_map = {
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44 username = { name = "username", type = "text-single", label = "Username", required = true };
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45 password = { name = "password", type = "text-private", label = "Password", required = true };
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46 nick = { name = "nick", type = "text-single", label = "Nickname" };
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47 name = { name = "name", type = "text-single", label = "Full Name" };
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48 first = { name = "first", type = "text-single", label = "Given Name" };
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49 last = { name = "last", type = "text-single", label = "Family Name" };
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50 email = { name = "email", type = "text-single", label = "Email" };
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51 address = { name = "address", type = "text-single", label = "Street" };
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52 city = { name = "city", type = "text-single", label = "City" };
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53 state = { name = "state", type = "text-single", label = "State" };
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54 zip = { name = "zip", type = "text-single", label = "Postal code" };
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55 phone = { name = "phone", type = "text-single", label = "Telephone number" };
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56 url = { name = "url", type = "text-single", label = "Webpage" };
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57 date = { name = "date", type = "text-single", label = "Birth date" };
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58
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59 -- something new
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60 formtype = { name = "FORM_TYPE", type = "hidden"};
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61 captcha_text = { name = "captcha_text", type = "fixed", label = "Warning: "};
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62 captcha_psi = { name = "captchahidden", type = "hidden" }; -- Don't know exactly why, but it exists in ejabberd register form
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63 captcha_url = { name = "url", type = "text-single", label = "Captcha url"};
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64 from = { name = "from", type = "hidden" };
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65 captcha_challenge = { name = "challenge", type = "hidden" };
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66 sid = { name = "sid", type = "hidden" };
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67 ocr = { name = "ocr", label = "Enter shown text", required = true, type = "media" }
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68 };
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69
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70 local registration_form = dataform_new{
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71
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72 field_map.formtype;
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73 field_map.username;
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74 field_map.password;
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75 field_map.captcha_text;
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76 -- field_map.captcha_psi; -- Maybe later, i really have no idea why it used in ejabberd reg form
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77 field_map.captcha_url;
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78 field_map.from;
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79 field_map.captcha_challenge;
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80 field_map.sid;
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81 field_map.ocr;
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82 };
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83
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84
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85 function delete_captcha(cid)
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86 os.remove(string.format("%s/%s.png", config.dir, cid))
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87 captcha_ids[cid] = nil;
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88 end
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89
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90 for _, field in ipairs(additional_fields) do
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91 if type(field) == "table" then
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92 registration_form[#registration_form + 1] = field;
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93 else
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94 if field:match("%+$") then
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95 field = field:sub(1, #field - 1);
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96 field_map[field].required = true;
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97 end
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98
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99 registration_form[#registration_form + 1] = field_map[field];
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100 registration_query:tag(field):up();
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101 end
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102 end
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103
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104 module:add_feature("jabber:iq:register");
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105
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106 local register_stream_feature = st.stanza("register", {xmlns="http://jabber.org/features/iq-register"}):up();
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107 module:hook("stream-features", function(event)
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108 local session, features = event.origin, event.features;
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109
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110 -- Advertise registration to unauthorized clients only.
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111 if not(allow_registration) or session.type ~= "c2s_unauthed" then
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112 return
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113 end
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114
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115 features:add_child(register_stream_feature);
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116 end);
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117
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118 local function handle_registration_stanza(event)
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119 local session, stanza = event.origin, event.stanza;
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120
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121 local query = stanza.tags[1];
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122 if stanza.attr.type == "get" then
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123 local reply = st.reply(stanza);
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124 reply:tag("query", {xmlns = "jabber:iq:register"})
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125 :tag("registered"):up()
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126 :tag("username"):text(session.username):up()
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127 :tag("password"):up();
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128 session.send(reply);
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129 else -- stanza.attr.type == "set"
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130 if query.tags[1] and query.tags[1].name == "remove" then
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131 local username, host = session.username, session.host;
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132
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133 local old_session_close = session.close;
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134 session.close = function(session, ...)
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135 session.send(st.reply(stanza));
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136 return old_session_close(session, ...);
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137 end
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138
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139 local ok, err = usermanager_delete_user(username, host);
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140
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141 if not ok then
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142 module:log("debug", "Removing user account %s@%s failed: %s", username, host, err);
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143 session.close = old_session_close;
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144 session.send(st.error_reply(stanza, "cancel", "service-unavailable", err));
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mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
145 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
146 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
147
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
148 module:log("info", "User removed their account: %s@%s", username, host);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
149 module:fire_event("user-deregistered", { username = username, host = host, source = "mod_register", session = session });
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
150 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
151 local username = nodeprep(query:get_child("username"):get_text());
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mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
152 local password = query:get_child("password"):get_text();
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
153 if username and password then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
154 if username == session.username then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
155 if usermanager_set_password(username, password, session.host) then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
156 session.send(st.reply(stanza));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
157 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
158 -- TODO unable to write file, file may be locked, etc, what's the correct error?
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
159 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
160 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
161 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
162 session.send(st.error_reply(stanza, "modify", "bad-request"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
163 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
164 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
165 session.send(st.error_reply(stanza, "modify", "bad-request"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
166 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
167 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
168 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
169 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
170 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
171
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
172 module:hook("iq/self/jabber:iq:register:query", handle_registration_stanza);
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mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
173 if compat then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
174 module:hook("iq/host/jabber:iq:register:query", function (event)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
175 local session, stanza = event.origin, event.stanza;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
176 if session.type == "c2s" and jid_bare(stanza.attr.to) == session.host then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
177 return handle_registration_stanza(event);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
178 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
179 end);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
180 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
181
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
182 local function parse_response(query)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
183 local form = query:get_child("x", "jabber:x:data");
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
184 if form then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
185 return registration_form:data(form);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
186 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
187 local data = {};
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
188 local errors = {};
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
189 for _, field in ipairs(registration_form) do
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
190 local name, required = field.name, field.required;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
191 if field_map[name] then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
192 data[name] = query:get_child_text(name);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
193 if (not data[name] or #data[name] == 0) and required then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
194 errors[name] = "Required value missing";
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
195 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
196 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
197 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
198 if next(errors) then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
199 return data, errors;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
200 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
201 return data;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
202 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
203 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
204
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
205 local recent_ips = {};
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
206 local min_seconds_between_registrations = module:get_option("min_seconds_between_registrations");
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
207 local whitelist_only = module:get_option("whitelist_registration_only");
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
208 local whitelisted_ips = module:get_option("registration_whitelist") or { "127.0.0.1" };
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
209 local blacklisted_ips = module:get_option("registration_blacklist") or {};
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
210
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
211 for _, ip in ipairs(whitelisted_ips) do whitelisted_ips[ip] = true; end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
212 for _, ip in ipairs(blacklisted_ips) do blacklisted_ips[ip] = true; end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
213
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
214
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
215 local function get_file(name)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
216 local file = io.open(name, "rb")
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
217 local data = file:read("*all")
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
218 file:close()
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
219 return data
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
220 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
221
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
222
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
223 local function get_captcha()
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
224 local cap = captcha.new();
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
225 math.randomseed(os_time());
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
226 local cid = tostring(math.random(1000, 90000)); -- random cid used for cap name
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
227 cap:font(config.font);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
228 cap:scribble();
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
229 captcha_ids[cid] = cap:write(string.format("%s/%s.png", config.dir, cid)):lower();
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
230 timer.add_task(config.timeout, function() delete_captcha(cid) end); -- Add new function to use arguments. Is there any other way in lua? Or it even works?
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
231 return cid
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
232 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
233
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
234
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
235
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
236 module:hook("stanza/iq/jabber:iq:register:query", function(event)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
237 local session, stanza = event.origin, event.stanza;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
238
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
239 if not(allow_registration) or session.type ~= "c2s_unauthed" then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
240 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
241 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
242 local query = stanza.tags[1];
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
243 if stanza.attr.type == "get" then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
244 local reply = st.reply(stanza):query("jabber:iq:register");
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
245 -- TODO: Move this in standalone function
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
246 local challenge = get_captcha()
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
247 local captcha_data = get_file(config.dir.."/"..challenge..".png")
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
248 local captcha_sha = sha1(captcha_data, true) -- omg
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
249 local captcha_base64 = base64(captcha_data) -- lol wut
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
250 xml = registration_form:form(({FORM_TYPE = "urn:xmpp:captcha",
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
251 from = session.host,
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
252 ocr = {{
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
253 type = "image/png",
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
254 uri = string.format("cid:sha1+%s@bob.xmpp.org", captcha_sha)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
255 }};
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
256 url = string.format("http://%s:5280/%s/%s", session.host, config.web_path, challenge);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
257 captcha_text = "If you can't see an image, follow link below";
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
258 challenge = challenge;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
259 sid = "1";
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
260 }));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
261
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
262 data = st.stanza("data",
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
263 {xmlns = "urn:xmpp:bob",
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
264 cid = string.format("sha1+%s@bob.xmpp.org", captcha_sha),
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
265 type = "image/png",
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
266 ["max-age"] = config.timeout})
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
267 :text(captcha_base64);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
268
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
269 reply = reply:add_child(xml);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
270 reply = reply:add_child(data);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
271 session.send(reply);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
272
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
273 elseif stanza.attr.type == "set" then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
274 if query.tags[1] and query.tags[1].name == "remove" then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
275 session.send(st.error_reply(stanza, "auth", "registration-required"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
276 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
277 local data, errors = parse_response(query);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
278 if errors then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
279 session.send(st.error_reply(stanza, "modify", "not-acceptable"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
280 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
281 -- Check that the user is not blacklisted or registering too often
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
282 if not session.ip then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
283 module:log("debug", "User's IP not known; can't apply blacklist/whitelist");
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
284 elseif blacklisted_ips[session.ip] or (whitelist_only and not whitelisted_ips[session.ip]) then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
285 session.send(st.error_reply(stanza, "cancel", "not-acceptable", "You are not allowed to register an account."));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
286 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
287 elseif min_seconds_between_registrations and not whitelisted_ips[session.ip] then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
288 if not recent_ips[session.ip] then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
289 recent_ips[session.ip] = { time = os_time(), count = 1 };
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
290 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
291 local ip = recent_ips[session.ip];
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
292 ip.count = ip.count + 1;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
293
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
294 if os_time() - ip.time < min_seconds_between_registrations then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
295 ip.time = os_time();
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
296 session.send(st.error_reply(stanza, "wait", "not-acceptable"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
297 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
298 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
299 ip.time = os_time();
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
300 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
301 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
302 local host = module.host;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
303 local ocr = data.ocr:lower();
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
304 local challenge = data.challenge;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
305 local username, password = nodeprep(data.username), data.password;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
306 data.username, data.password = nil, nil;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
307
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
308 if challenge == nil or captcha_ids[challenge] == nil then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
309 session.send(st.error_reply(stanza, "modify", "not-acceptable", "Captcha id is invalid or it has expired"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
310 delete_captcha(challenge);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
311 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
312 elseif ocr ~= captcha_ids[challenge] then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
313 session.send(st.error_reply(stanza, "modify", "not-acceptable", "Invalid captcha text"));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
314 delete_captcha(challenge);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
315 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
316 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
317 if not username or username == "" then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
318 session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is invalid."));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
319 delete_captcha(challenge);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
320 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
321 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
322 local user = { username = username , host = host, allowed = true }
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
323 module:fire_event("user-registering", user);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
324 if not user.allowed then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
325 delete_captcha(challenge);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
326 session.send(st.error_reply(stanza, "modify", "not-acceptable", "The requested username is forbidden."));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
327 elseif usermanager_user_exists(username, host) then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
328 delete_captcha(challenge)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
329 session.send(st.error_reply(stanza, "cancel", "conflict", "The requested username already exists."));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
330 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
331 -- TODO unable to write file, file may be locked, etc, what's the correct error?
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
332 local error_reply = st.error_reply(stanza, "wait", "internal-server-error", "Failed to write data to disk.");
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
333 if usermanager_create_user(username, password, host) then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
334 if next(data) and not account_details:set(username, data) then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
335 delete_captcha(challenge);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
336 usermanager_delete_user(username, host);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
337 session.send(error_reply);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
338 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
339 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
340 session.send(st.reply(stanza)); -- user created!
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
341 module:log("info", "User account created: %s@%s", username, host);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
342 module:fire_event("user-registered", {
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
343 username = username, host = host, source = "mod_register",
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
344 session = session });
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
345 else
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
346 delete_captcha(challenge);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
347 session.send(error_reply);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
348 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
349 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
350 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
351 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
352 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
353 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
354 return true;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
355 end);
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
356
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
357 function string:split(sep)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
358 local sep, fields = sep or ":", {}
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
359 local pattern = string.format("([^%s]+)", sep)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
360 self:gsub(pattern, function(c) fields[#fields+1] = c end)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
361 return fields
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
362 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
363
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
364
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
365 function handle_http_request(event)
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
366 local request = event.request;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
367 local path = request.path;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
368 local cid = path:split("/")[2];
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
369 if cid == nil or captcha_ids[cid] == nil then
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
370 return nil;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
371 end
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
372 request.response = {
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
373 status_code = 200;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
374 headers = {
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
375 content_type = "image/png"
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
376 };
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
377 body = get_file(string.format("%s/%s.png", config.dir, cid));
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
378 };
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
379 return request.response;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
380
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
381
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
382 end;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
383
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
384 module:provides("http", {
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
385 default_path = "/"..config.web_path;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
386 route = {
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
387 ["GET /*"] = handle_http_request;
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
388 };
985bfc6e8cad mod_captcha_registration: initial commit
mrDoctorWho <mrdoctorwho@gmail.com>
parents:
diff changeset
389 });