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annotate mod_auth_http/mod_auth_http.lua @ 5606:39bb7232326d

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mod_default_bookmarks: Include 'autojoin' in examples The text does mention this, but who reads that?
author Kim Alvefur <zash@zash.se>
date Mon, 17 Jul 2023 16:40:45 +0200
parents 8862a80cbd00
children
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93b12bfd7aa8 mod_auth_http: Yet another module to authenticate against a HTTP service
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2013 Matthew Wild
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3 -- Copyright (C) 2008-2013 Waqas Hussain
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4 -- Copyright (C) 2014 Kim Alvefur
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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 local new_sasl = require "util.sasl".new;
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11 local base64 = require "util.encodings".base64.encode;
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12 local have_async, async = pcall(require, "util.async");
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13 local http = require "net.http";
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14
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15 if not have_async then
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16 error("Your version of Prosody does not support async and is incompatible");
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17 end
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18
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19 local host = module.host;
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20
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21 local api_base = module:get_option_string("http_auth_url", ""):gsub("$host", host);
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22 if api_base == "" then error("http_auth_url required") end
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23 api_base = api_base:gsub("/$", "");
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24
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25 local auth_creds = module:get_option_string("http_auth_credentials");
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26
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27 local method_types = {
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28 -- Unlisted methods default to GET
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29 register = "POST";
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30 set_password = "POST";
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31 remove_user = "POST";
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32 };
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33
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34 local provider = {};
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35
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36 local function make_request(method_name, params)
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37 local wait, done = async.waiter();
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38
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39 local method_type = method_types[method_name] or "GET";
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40
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41 params.server = params.server or host;
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42 local encoded_params = http.formencode(params);
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43
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44 local url;
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45 local ex = {
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46 method = method_type;
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47 headers = { Authorization = auth_creds and ("Basic "..base64(auth_creds)) or nil; };
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48 }
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49 if method_type == "POST" then
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50 url = api_base.."/"..method_name;
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51 ex.headers["Content-Type"] = "application/x-www-form-urlencoded";
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52 ex.body = encoded_params;
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53 else
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54 url = api_base.."/"..method_name.."?"..encoded_params;
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55 end
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56
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57 local content, code;
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58 local function cb(content_, code_)
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59 content, code = content_, code_;
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60 done();
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61 end
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62 http.request(url, ex, cb);
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63 wait();
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64 return code, content;
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65 end
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66
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67 function provider.test_password(username, password)
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68 local code, body = make_request("check_password", { user = username, pass = password });
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69 if code == 200 and body == "true" then
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70 return true;
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71 end
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72 return false;
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73 end
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74
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75 function provider.users()
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76 return function()
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77 return nil;
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78 end
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79 end
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80
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81 function provider.set_password(username, password)
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82 local code = make_request("set_password", { user = username, pass = password });
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83 if code == 200 or code == 201 or code == 204 then
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84 return true;
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85 end
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86 return false;
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87 end
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88
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89 function provider.user_exists(username)
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90 local code, body = make_request("user_exists", { user = username });
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91 if code == 200 and body == "true" then
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92 return true;
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93 end
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94 return false;
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95 end
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96
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97 function provider.create_user(username, password)
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98 local code = make_request("register", { user = username, pass = password });
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99 if code == 201 then
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100 return true;
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101 end
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102 return false;
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103 end
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104
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105 function provider.delete_user(username)
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106 local code = make_request("remove_user", { user = username });
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107 if code == 200 or code == 201 or code == 204 then
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108 return true;
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109 end
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110 return false;
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111 end
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112
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113 function provider.get_sasl_handler()
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114 return new_sasl(host, {
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115 --luacheck: ignore 212/sasl 212/realm
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116 plain_test = function(sasl, username, password, realm)
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117 return provider.test_password(username, password), true;
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118 end;
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119 });
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120 end
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121
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122 module:provides("auth", provider);