Mercurial > prosody-modules

annotate mod_register_web/mod_register_web.lua @ 1572:1aa894db3585

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mod_register_web: Add option for specifying path to templates
author Kim Alvefur <zash@zash.se>
date Wed, 19 Nov 2014 10:19:51 +0100
parents 5e1f7af23cf0
children c56baec031e8
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
diff changeset
2 local nodeprep = require "util.encodings".stringprep.nodeprep;
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a3766d3baacb mod_register_web: Import usermanager and util.http into locals
Kim Alvefur <zash@zash.se>
parents: 1223
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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)
Matthew Wild <mwild1@gmail.com>
parents: 1239
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4 local http = require "net.http";
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742f3dc601b5 mod_register_web: Use path separator from package.config
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parents: 1320
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5 local path_sep = package.config:sub(1,1);
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c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
Matthew Wild <mwild1@gmail.com>
parents:
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6
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5e1f7af23cf0 mod_register_web: Add dependency on mod_http
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7 module:depends"http";
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8
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9 local extra_fields = {
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10 nick = true; name = true; first = true; last = true; email = true;
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11 address = true; city = true; state = true; zip = true;
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12 phone = true; url = true; date = true;
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13 }
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parents: 1234
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14
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1aa894db3585 mod_register_web: Add option for specifying path to templates
Kim Alvefur <zash@zash.se>
parents: 1460
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15 local template_path = module:get_option_string("register_web_template", "templates");
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16 function template(data)
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17 -- Like util.template, but deals with plain text
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18 return { apply = function(values) return (data:gsub("{([^}]+)}", values)); end }
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19 end
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20
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21 local function get_template(name)
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22 local fh = assert(module:load_resource(template_path..path_sep..name..".html"));
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23 local data = assert(fh:read("*a"));
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24 fh:close();
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25 return template(data);
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26 end
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27
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28 local function render(template, data)
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29 return tostring(template.apply(data));
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30 end
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31
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32 local register_tpl = get_template "register";
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parents: 1226
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33 local success_tpl = get_template "success";
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db85ff22ae97 mod_register_web: Add a simple fallback captcha
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parents: 1227
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34
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35 if next(captcha_options) ~= nil then
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36 local recaptcha_tpl = get_template "recaptcha";
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37
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38 function generate_captcha(display_options)
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39 return recaptcha_tpl.apply(setmetatable({
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40 recaptcha_display_error = display_options and display_options.recaptcha_error
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parents: 1227
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41 and ("&error="..display_options.recaptcha_error) or "";
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42 }, {
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43 __index = function (t, k)
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parents: 1227
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44 if captcha_options[k] then return captcha_options[k]; end
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parents: 1227
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45 module:log("error", "Missing parameter from captcha_options: %s", k);
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parents: 1227
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46 end
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parents: 1227
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47 }));
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parents: 1227
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48 end
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da39ba4047a7 mod_register_web: Pass request to captcha handler
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parents: 1233
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49 function verify_captcha(request, form, callback)
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parents: 1227
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50 http.request("https://www.google.com/recaptcha/api/verify", {
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Kim Alvefur <zash@zash.se>
parents: 1227
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51 body = http.formencode {
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Kim Alvefur <zash@zash.se>
parents: 1227
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52 privatekey = captcha_options.recaptcha_private_key;
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parents: 1227
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53 remoteip = request.conn:ip();
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parents: 1227
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54 challenge = form.recaptcha_challenge_field;
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parents: 1227
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55 response = form.recaptcha_response_field;
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parents: 1227
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56 };
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parents: 1227
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57 }, function (verify_result, code)
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parents: 1227
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58 local verify_ok, verify_err = verify_result:match("^([^\n]+)\n([^\n]+)");
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parents: 1227
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59 if verify_ok == "true" then
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parents: 1227
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60 callback(true);
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61 else
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62 callback(false, verify_err)
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63 end
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parents: 1227
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64 end);
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parents: 1227
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65 end
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Kim Alvefur <zash@zash.se>
parents: 1227
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66 else
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parents: 1227
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67 module:log("debug", "No Recaptcha options set, using fallback captcha")
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502ce9672eae mod_register_web: Use local
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parents: 1230
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68 local random = math.random;
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Kim Alvefur <zash@zash.se>
parents: 1227
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69 local hmac_sha1 = require "util.hashes".hmac_sha1;
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Kim Alvefur <zash@zash.se>
parents: 1227
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70 local secret = require "util.uuid".generate()
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parents: 1227
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71 local ops = { '+', '-' };
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parents: 1227
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72 local captcha_tpl = get_template "simplecaptcha";
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parents: 1227
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73 function generate_captcha()
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Kim Alvefur <zash@zash.se>
parents: 1230
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74 local op = ops[random(1, #ops)];
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Kim Alvefur <zash@zash.se>
parents: 1230
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75 local x, y = random(1, 9)
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76 repeat
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parents: 1230
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77 y = random(1, 9);
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78 until x ~= y;
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parents: 1227
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79 local answer;
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parents: 1227
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80 if op == '+' then
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parents: 1227
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81 answer = x + y;
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parents: 1227
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82 elseif op == '-' then
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parents: 1227
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83 if x < y then
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Kim Alvefur <zash@zash.se>
parents: 1227
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84 -- Avoid negative numbers
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85 x, y = y, x;
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86 end
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87 answer = x - y;
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88 end
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89 local challenge = hmac_sha1(secret, answer, true);
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90 return captcha_tpl.apply {
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91 op = op, x = x, y = y, challenge = challenge;
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92 };
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93 end
1234
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94 function verify_captcha(request, form, callback)
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95 if hmac_sha1(secret, form.captcha_reply, true) == form.captcha_challenge then
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96 callback(true);
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97 else
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98 callback(false, "Captcha verification failed");
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99 end
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100 end
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parents: 1225
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101 end
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c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
102
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Matthew Wild <mwild1@gmail.com>
parents:
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103 function generate_page(event, display_options)
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Matthew Wild <mwild1@gmail.com>
parents:
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104 local request = event.request;
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105
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106 return render(register_tpl, {
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107 path = request.path; hostname = module.host;
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108 notice = display_options and display_options.register_error or "";
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109 captcha = generate_captcha(display_options);
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parents: 1226
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110 })
653
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
Matthew Wild <mwild1@gmail.com>
parents:
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111 end
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
Matthew Wild <mwild1@gmail.com>
parents:
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112
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e670d4cc5027 mod_register_web: Pass request around so IP address can be reported
Kim Alvefur <zash@zash.se>
parents: 1247
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113 function register_user(form, origin)
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Kim Alvefur <zash@zash.se>
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114 local prepped_username = nodeprep(form.username);
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parents: 1229
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115 if not prepped_username then
f7c561fbd5a6 mod_register_web: Friendly error messages if the username is taken or failed nodeprep
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parents: 1229
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116 return nil, "Username contains forbidden characters";
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parents: 1229
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117 end
1236
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parents: 1235
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118 if #prepped_username == 0 then
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119 return nil, "The username field was empty";
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120 end
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121 if usermanager.user_exists(prepped_username, module.host) then
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122 return nil, "Username already taken";
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parents: 1228
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123 end
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Kim Alvefur <zash@zash.se>
parents: 1237
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124 local registering = { username = prepped_username , host = module.host, allowed = true }
1237
c669cb78b293 mod_register_web: Fire user-registering event like mod_register
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parents: 1236
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125 module:fire_event("user-registering", registering);
c669cb78b293 mod_register_web: Fire user-registering event like mod_register
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parents: 1236
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126 if not registering.allowed then
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127 return nil, "Registration not allowed";
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parents: 1236
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128 end
1233
f7b1992e4ff6 mod_register_web: Add missing =
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parents: 1232
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129 local ok, err = usermanager.create_user(prepped_username, form.password, module.host);
1232
12f59489ef6e mod_register_web: Fire user-registered event
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parents: 1231
diff changeset
130 if ok then
1235
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Kim Alvefur <zash@zash.se>
parents: 1234
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131 local extra_data = {};
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parents: 1234
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132 for field in pairs(extra_fields) do
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parents: 1234
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133 local field_value = form[field];
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134 if field_value and #field_value > 0 then
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135 extra_data[field] = field_value;
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136 end
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137 end
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138 if next(extra_data) ~= nil then
1235
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139 datamanager.store(prepped_username, module.host, "account_details", extra_data);
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140 end
1232
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141 module:fire_event("user-registered", {
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142 username = prepped_username,
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143 host = module.host,
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144 source = module.name,
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145 ip = origin.conn:ip(),
1232
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parents: 1231
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146 });
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147 end
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parents: 1231
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148 return ok, err;
653
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parents:
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149 end
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parents:
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150
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parents:
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151 function generate_success(event, form)
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parents: 1226
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152 return render(success_tpl, { jid = nodeprep(form.username).."@"..module.host });
653
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parents:
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153 end
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parents:
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154
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parents:
diff changeset
155 function generate_register_response(event, form, ok, err)
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parents:
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156 local message;
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parents:
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157 if ok then
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parents:
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158 return generate_success(event, form);
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parents:
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159 else
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parents:
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160 return generate_page(event, { register_error = err });
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parents:
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161 end
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162 end
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
163
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
164 function handle_form(event)
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parents:
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165 local request, response = event.request, event.response;
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parents:
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166 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
167 verify_captcha(request, form, function (ok, err)
1226
0667624637da mod_register_web: Split out recaptcha verification to a separate function
Kim Alvefur <zash@zash.se>
parents: 1225
diff changeset
168 if ok then
1320
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Kim Alvefur <zash@zash.se>
parents: 1247
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169 local register_ok, register_err = register_user(form, request);
653
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parents:
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170 response:send(generate_register_response(event, form, register_ok, register_err));
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parents:
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171 else
1226
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parents: 1225
diff changeset
172 response:send(generate_page(event, { register_error = err }));
653
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parents:
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173 end
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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174 end);
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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175 return true; -- Leave connection open until we respond above
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parents:
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176 end
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parents:
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177
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parents:
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178 module:provides("http", {
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parents:
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179 route = {
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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180 GET = generate_page;
1239
cc5cbeeb9fc7 mod_register_web: Handle URLs with a trailing slash
Kim Alvefur <zash@zash.se>
parents: 1238
diff changeset
181 ["GET /"] = generate_page;
653
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parents:
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182 POST = handle_form;
1239
cc5cbeeb9fc7 mod_register_web: Handle URLs with a trailing slash
Kim Alvefur <zash@zash.se>
parents: 1238
diff changeset
183 ["POST /"] = handle_form;
653
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
184 };
c08b0e4b7b38 mod_register_web: Extremely rough web registration page, with captcha
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parents:
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185 });