Mercurial > prosody-modules

annotate mod_register_web/mod_register_web.lua @ 1268:854a3933cfcd

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mod_muc_log_http: URL-encode room names. This allows special characters in room names to work. Ideally this escaping shouldn’t be done in the user visible content, but the module’s template system doesn’t currently allow that.
author Waqas Hussain <waqas20@gmail.com>
date Sat, 04 Jan 2014 16:50:57 -0500
parents 34fbe58d19da
children e670d4cc5027
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 local captcha_options = module:get_option("captcha_options", {});
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03595194075a mod_register_web: nodeprep username before creating user (thanks IRON)
Matthew Wild <mwild1@gmail.com>
parents: 653
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2 local nodeprep = require "util.encodings".stringprep.nodeprep;
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a3766d3baacb mod_register_web: Import usermanager and util.http into locals
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3 local usermanager = require "core.usermanager";
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34fbe58d19da mod_register_web: Use net.http instead of util.http, as we need to make requests (thanks dustin)
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parents: 1239
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4 local http = require "net.http";
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5
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6 local extra_fields = {
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7 nick = true; name = true; first = true; last = true; email = true;
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8 address = true; city = true; state = true; zip = true;
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9 phone = true; url = true; date = true;
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10 }
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11
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12 function template(data)
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13 -- Like util.template, but deals with plain text
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14 return { apply = function(values) return (data:gsub("{([^}]+)}", values)); end }
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15 end
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16
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17 local function get_template(name)
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18 local fh = assert(module:load_resource("templates/"..name..".html"));
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19 local data = assert(fh:read("*a"));
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20 fh:close();
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21 return template(data);
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22 end
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23
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24 local function render(template, data)
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25 return tostring(template.apply(data));
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26 end
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27
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28 local register_tpl = get_template "register";
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29 local success_tpl = get_template "success";
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30
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31 if next(captcha_options) ~= nil then
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32 local recaptcha_tpl = get_template "recaptcha";
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33
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34 function generate_captcha(display_options)
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35 return recaptcha_tpl.apply(setmetatable({
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36 recaptcha_display_error = display_options and display_options.recaptcha_error
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37 and ("&error="..display_options.recaptcha_error) or "";
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38 }, {
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39 __index = function (t, k)
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40 if captcha_options[k] then return captcha_options[k]; end
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41 module:log("error", "Missing parameter from captcha_options: %s", k);
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42 end
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43 }));
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44 end
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45 function verify_captcha(request, form, callback)
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46 http.request("https://www.google.com/recaptcha/api/verify", {
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Kim Alvefur <zash@zash.se>
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47 body = http.formencode {
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Kim Alvefur <zash@zash.se>
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48 privatekey = captcha_options.recaptcha_private_key;
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49 remoteip = request.conn:ip();
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parents: 1227
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50 challenge = form.recaptcha_challenge_field;
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51 response = form.recaptcha_response_field;
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52 };
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53 }, function (verify_result, code)
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54 local verify_ok, verify_err = verify_result:match("^([^\n]+)\n([^\n]+)");
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55 if verify_ok == "true" then
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56 callback(true);
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57 else
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58 callback(false, verify_err)
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59 end
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60 end);
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61 end
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parents: 1227
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62 else
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parents: 1227
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63 module:log("debug", "No Recaptcha options set, using fallback captcha")
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64 local random = math.random;
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65 local hmac_sha1 = require "util.hashes".hmac_sha1;
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66 local secret = require "util.uuid".generate()
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67 local ops = { '+', '-' };
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68 local captcha_tpl = get_template "simplecaptcha";
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69 function generate_captcha()
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70 local op = ops[random(1, #ops)];
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71 local x, y = random(1, 9)
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72 repeat
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73 y = random(1, 9);
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74 until x ~= y;
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75 local answer;
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76 if op == '+' then
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77 answer = x + y;
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78 elseif op == '-' then
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79 if x < y then
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80 -- Avoid negative numbers
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81 x, y = y, x;
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82 end
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83 answer = x - y;
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84 end
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85 local challenge = hmac_sha1(secret, answer, true);
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86 return captcha_tpl.apply {
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87 op = op, x = x, y = y, challenge = challenge;
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88 };
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89 end
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90 function verify_captcha(request, form, callback)
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91 if hmac_sha1(secret, form.captcha_reply, true) == form.captcha_challenge then
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92 callback(true);
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93 else
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94 callback(false, "Captcha verification failed");
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95 end
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96 end
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97 end
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Matthew Wild <mwild1@gmail.com>
parents:
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98
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Matthew Wild <mwild1@gmail.com>
parents:
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99 function generate_page(event, display_options)
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parents:
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100 local request = event.request;
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101
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102 return render(register_tpl, {
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103 path = request.path; hostname = module.host;
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104 notice = display_options and display_options.register_error or "";
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105 captcha = generate_captcha(display_options);
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106 })
653
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107 end
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parents:
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108
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parents:
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109 function register_user(form)
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Kim Alvefur <zash@zash.se>
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110 local prepped_username = nodeprep(form.username);
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Kim Alvefur <zash@zash.se>
parents: 1229
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111 if not prepped_username then
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parents: 1229
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112 return nil, "Username contains forbidden characters";
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113 end
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parents: 1235
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114 if #prepped_username == 0 then
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115 return nil, "The username field was empty";
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116 end
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parents: 1228
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117 if usermanager.user_exists(prepped_username, module.host) then
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118 return nil, "Username already taken";
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119 end
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120 local registering = { username = prepped_username , host = module.host, allowed = true }
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121 module:fire_event("user-registering", registering);
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122 if not registering.allowed then
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123 return nil, "Registration not allowed";
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parents: 1236
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124 end
1233
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Kim Alvefur <zash@zash.se>
parents: 1232
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125 local ok, err = usermanager.create_user(prepped_username, form.password, module.host);
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parents: 1231
diff changeset
126 if ok then
1235
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Kim Alvefur <zash@zash.se>
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127 local extra_data = {};
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128 for field in pairs(extra_fields) do
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129 local field_value = form[field];
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130 if field_value and #field_value > 0 then
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131 extra_data[field] = field_value;
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132 end
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parents: 1234
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133 end
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134 if next(extra_data) ~= nil then
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135 datamanager.store(prepped_username, module.host, "account_details", extra_data);
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136 end
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137 module:fire_event("user-registered", {
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138 username = prepped_username,
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139 host = module.host,
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140 source = module.name
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141 });
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142 end
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143 return ok, err;
653
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parents:
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144 end
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parents:
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145
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parents:
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146 function generate_success(event, form)
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6015434f0e05 mod_register_web: Move HTML into separate template files
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parents: 1226
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147 return render(success_tpl, { jid = nodeprep(form.username).."@"..module.host });
653
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parents:
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148 end
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parents:
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149
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150 function generate_register_response(event, form, ok, err)
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151 local message;
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152 if ok then
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parents:
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153 return generate_success(event, form);
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154 else
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parents:
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155 return generate_page(event, { register_error = err });
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parents:
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156 end
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parents:
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157 end
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parents:
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158
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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159 function handle_form(event)
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parents:
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160 local request, response = event.request, event.response;
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parents:
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161 local form = http.formdecode(request.body);
1234
da39ba4047a7 mod_register_web: Pass request to captcha handler
Kim Alvefur <zash@zash.se>
parents: 1233
diff changeset
162 verify_captcha(request, form, function (ok, err)
1226
0667624637da mod_register_web: Split out recaptcha verification to a separate function
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parents: 1225
diff changeset
163 if ok then
653
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parents:
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164 local register_ok, register_err = register_user(form);
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parents:
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165 response:send(generate_register_response(event, form, register_ok, register_err));
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parents:
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166 else
1226
0667624637da mod_register_web: Split out recaptcha verification to a separate function
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parents: 1225
diff changeset
167 response:send(generate_page(event, { register_error = err }));
653
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parents:
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168 end
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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169 end);
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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170 return true; -- Leave connection open until we respond above
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parents:
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171 end
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parents:
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172
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parents:
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173 module:provides("http", {
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parents:
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174 route = {
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parents:
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175 GET = generate_page;
1239
cc5cbeeb9fc7 mod_register_web: Handle URLs with a trailing slash
Kim Alvefur <zash@zash.se>
parents: 1238
diff changeset
176 ["GET /"] = generate_page;
653
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parents:
diff changeset
177 POST = handle_form;
1239
cc5cbeeb9fc7 mod_register_web: Handle URLs with a trailing slash
Kim Alvefur <zash@zash.se>
parents: 1238
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178 ["POST /"] = handle_form;
653
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parents:
diff changeset
179 };
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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180 });