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annotate mod_register_web/mod_register_web.lua @ 737:e4ea03b060ed

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mod_archive: switch from/to The XEP-0136 is not very explicit about the meening of <from> and <to> elements, but the examples are clear: <from> means it comes from the user in the 'with' attribute of the collection. That is the opposite of what is currently implemented in that module. So for better compatibility with complient clients, this switch the 'from' and 'to' fields
author Olivier Goffart <ogoffart@woboq.com>
date Wed, 04 Jul 2012 14:08:43 +0200
parents c08b0e4b7b38
children 03595194075a
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1 local captcha_options = module:get_option("captcha_options", {});
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2
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3 function generate_captcha(display_options)
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4 return (([[
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5 <script type="text/javascript"
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6 src="http://www.google.com/recaptcha/api/challenge?k=$$recaptcha_public_key$$">
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7 </script>
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8 <noscript>
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9 <iframe src="http://www.google.com/recaptcha/api/noscript?k=$$recaptcha_public_key$$$$recaptcha_display_error$$"
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10 height="300" width="500" frameborder="0"></iframe><br>
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11 <textarea name="recaptcha_challenge_field" rows="3" cols="40">
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12 </textarea>
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13 <input type="hidden" name="recaptcha_response_field"
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14 value="manual_challenge">
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15 </noscript>
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16 ]]):gsub("$$([^$]+)$%$", setmetatable({
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17 recaptcha_display_error = display_options and display_options.recaptcha_error
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18 and ("&error="..display_options.recaptcha_error) or "";
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19 }, {
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20 __index = function (t, k)
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21 if captcha_options[k] then return captcha_options[k]; end
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22 module:log("error", "Missing parameter from captcha_options: %s", k);
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23 end })
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24 ));
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25 end
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26
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27 function generate_page(event, display_options)
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28 local request = event.request;
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29 return [[<!DOCTYPE html>
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30 <html><body>
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31 <h1>XMPP Account Registration</h1>
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32 <form action="]]..request.path..[[" method="POST">]]
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33 ..("<p>%s</p>\n"):format((display_options or {}).register_error or "")..
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34 [[ <table>
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35 <tr>
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36 <td>Username:</td>
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37 <td><input type="text" name="username">@server</td>
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38 </tr>
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39 <tr>
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40 <td>Password:</td>
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41 <td><input type="password" name="password"></td>
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42 </tr>
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43 <tr>
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44 <td colspan='2'>]]..generate_captcha(display_options)..[[</td>
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45 </tr>
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46 </table>
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47 <input type="submit" value="Register!">
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48 </form>
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49 </body></html>]];
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50 end
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51
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52 function register_user(form)
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53 if usermanager.user_exists(form.username, module.host) then
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54 return nil, "user-exists";
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55 end
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56 return usermanager.create_user(form.username, form.password, module.host);
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57 end
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58
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59 function generate_success(event, form)
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60 return [[<!DOCTYPE html>
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61 <html><body><p>Registration succeeded! Your account is <pre>]]
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62 ..form.username.."@"..module.host..
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63 [[</pre> - happy chatting!</p></body></html>]];
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64 end
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65
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66 function generate_register_response(event, form, ok, err)
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67 local message;
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68 if ok then
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69 return generate_success(event, form);
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70 else
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71 return generate_page(event, { register_error = err });
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72 end
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73 end
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74
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75 function handle_form(event)
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76 local request, response = event.request, event.response;
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77 local form = http.formdecode(request.body);
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78 http.request("http://www.google.com/recaptcha/api/verify", {
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79 body = http.formencode {
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80 privatekey = captcha_options.recaptcha_private_key;
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81 remoteip = request.conn:ip();
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82 challenge = form.recaptcha_challenge_field;
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83 response = form.recaptcha_response_field;
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84 };
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85 }, function (verify_result, code)
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86 local verify_ok, verify_err = verify_result:match("^([^\n]+)\n([^\n]+)");
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87 if verify_ok == "true" then
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88 local register_ok, register_err = register_user(form);
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89 response:send(generate_register_response(event, form, register_ok, register_err));
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90 else
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91 response:send(generate_page(event, { register_error = verify_err }));
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92 end
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93 end);
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94 return true; -- Leave connection open until we respond above
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95 end
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96
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97 module:provides("http", {
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98 route = {
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99 GET = generate_page;
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100 POST = handle_form;
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101 };
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102 });