prosody-modules
7a4e8dbbd30d
mod_auth_http_async/mod_auth_http_async.lua

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mod_auth_http_async/mod_auth_http_async.lua @ 2773:7a4e8dbbd30d

mod_traceback: Write current stack trace to file on SIGUSR1
author Matthew Wild <mwild1@gmail.com>
date Mon, 25 Sep 2017 11:20:05 +0100
parent 2750:1d139e33c502
child 2811:39156d6f7268
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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
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14 local log = module._log;
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15 local host = module.host;
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16
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17 local api_base = module:get_option_string("http_auth_url", ""):gsub("$host", host);
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18 if api_base == "" then error("http_auth_url required") end
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19
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20 local provider = {};
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21
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22 -- globals required by socket.http
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23 if rawget(_G, "PROXY") == nil then
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24 rawset(_G, "PROXY", false)
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25 end
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26 if rawget(_G, "base_parsed") == nil then
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27 rawset(_G, "base_parsed", false)
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28 end
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29
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30 local function async_http_auth(url, username, password)
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31 module:log("debug", "async_http_auth()");
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32 local http = require "net.http";
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33 local wait, done = async.waiter();
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34 local content, code, request, response;
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35 local ex = {
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36 headers = { Authorization = "Basic "..base64(username..":"..password); };
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37 }
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38 local function cb(content_, code_, request_, response_)
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39 content, code, request, response = content_, code_, request_, response_;
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40 done();
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41 end
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42 http.request(url, ex, cb);
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43 wait();
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44 if code >= 200 and code <= 299 then
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45 module:log("debug", "HTTP auth provider confirmed valid password");
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46 return true;
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47 else
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48 module:log("debug", "HTTP auth provider returned status code %d", code);
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49 end
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50 return nil, "Auth failed. Invalid username or password.";
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51 end
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52
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53 local function sync_http_auth(url,username, password)
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54 module:log("debug", "sync_http_auth()");
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55 local http = require "socket.http";
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56 local https = require "ssl.https";
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57 local request;
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58 if string.sub(url, 1, string.len('https')) == 'https' then
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59 request = https.request;
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60 else
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61 request = http.request;
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62 end
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63 local _, code, headers, status = request{
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64 url = url,
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65 headers = { Authorization = "Basic "..base64(username..":"..password); }
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66 };
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67 if type(code) == "number" and code >= 200 and code <= 299 then
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68 module:log("debug", "HTTP auth provider confirmed valid password");
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69 return true;
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70 else
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71 module:log("debug", "HTTP auth provider returned status code: "..code);
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72 end
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73 return nil, "Auth failed. Invalid username or password.";
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74 end
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75
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76 function provider.test_password(username, password)
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77 local url = api_base:gsub("$user", username):gsub("$password", password);
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78 log("debug", "Testing password for user %s at host %s with URL %s", username, host, url);
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79 if (have_async) then
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80 return async_http_auth(url, username, password);
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81 else
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82 return sync_http_auth(url, username, password);
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83 end
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84 end
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85
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86 function provider.users()
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87 return function()
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88 return nil;
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89 end
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90 end
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91
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92 function provider.set_password(username, password)
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93 return nil, "Changing passwords not supported";
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94 end
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95
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96 function provider.user_exists(username)
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97 return true;
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98 end
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99
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100 function provider.create_user(username, password)
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101 return nil, "User creation not supported";
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102 end
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103
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104 function provider.delete_user(username)
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105 return nil , "User deletion not supported";
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106 end
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107
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108 function provider.get_sasl_handler()
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109 return new_sasl(host, {
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110 plain_test = function(sasl, username, password, realm)
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111 return provider.test_password(username, password), true;
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112 end
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113 });
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114 end
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115
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116 module:provides("auth", provider);