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annotate mod_auth_http_async/mod_auth_http_async.lua @ 2144:ead81e222fde

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mod_auth_external/README: Update link from google code to hg.prosody.im
author Kim Alvefur <zash@zash.se>
date Thu, 31 Mar 2016 14:48:30 +0200
parents 54f9e8663139
children 5e8dec076afc
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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 waiter =require "util.async".waiter;
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13 local http = require "net.http";
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14
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15 local log = module._log;
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16 local host = module.host;
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18 local api_base = module:get_option_string("http_auth_url", ""):gsub("$host", host);
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19 if api_base == "" then error("http_auth_url required") end
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20
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21 local function async_http_request(url, ex)
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22 local wait, done = waiter();
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23
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24 local content, code, request, response;
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25 local function cb(content_, code_, request_, response_)
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26 content, code, request, response = content_, code_, request_, response_;
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27 done();
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28 end
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29 http.request(url, ex, cb);
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30 wait();
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31 return content, code, request, response;
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32 end
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33
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34 local provider = {};
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35
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36 function provider.test_password(username, password)
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37 log("debug", "test password for user %s at host %s", username, host);
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40 local _, code = async_http_request(api_base:gsub("$user", username), {
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41 headers = { Authorization = "Basic "..base64(username..":"..password); };
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42 });
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44 if code >= 200 and code <= 299 then
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45 return true;
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46 else
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47 module:log("debug", "HTTP auth provider returned status code %d", code);
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48 return nil, "Auth failed. Invalid username or password.";
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49 end
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50 end
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51
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52 function provider.set_password(username, password)
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53 return nil, "Changing passwords not supported";
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54 end
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56 function provider.user_exists(username)
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57 return true;
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58 end
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59
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60 function provider.create_user(username, password)
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61 return nil, "User creation not supported";
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62 end
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63
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64 function provider.delete_user(username)
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65 return nil , "User deletion not supported";
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66 end
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68 function provider.get_sasl_handler()
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69 return new_sasl(host, {
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70 plain_test = function(sasl, username, password, realm)
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71 return provider.test_password(username, password), true;
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72 end
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73 });
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74 end
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75
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76 module:provides("auth", provider);
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77