prosody
73ee3855f970
plugins/mod_auth_internal_plain.lua

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plugins/mod_auth_internal_plain.lua @ 12518:73ee3855f970

mod_smacks: Factor out some convenience functions Those lines are long and the risk of mistakes if another one needs to be added seems high, but lower when factored out like this.
author Kim Alvefur <zash@zash.se>
date Fri, 11 Feb 2022 16:09:42 +0100
parent 11544:c98aebe601f9
child 12646:3f38f4735c7a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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Jeff Mitchell <jeff@jefferai.org>
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local usermanager = require "core.usermanager";
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10 local new_sasl = require "util.sasl".new;
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11 local saslprep = require "util.encodings".stringprep.saslprep;
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12 local secure_equals = require "util.hashes".equals;
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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 accounts = module:open_store("accounts");
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18
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19 -- define auth provider
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20 local provider = {};
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21
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22 function provider.test_password(username, password)
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23 log("debug", "test password for user '%s'", username);
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24 local credentials = accounts:get(username) or {};
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25 password = saslprep(password);
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26 if not password then
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27 return nil, "Password fails SASLprep.";
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28 end
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29
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30 if secure_equals(password, saslprep(credentials.password)) then
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31 return true;
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32 else
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33 return nil, "Auth failed. Invalid username or password.";
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34 end
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35 end
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36
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37 function provider.get_password(username)
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38 log("debug", "get_password for username '%s'", username);
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39 return (accounts:get(username) or {}).password;
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40 end
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41
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42 function provider.set_password(username, password)
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43 log("debug", "set_password for username '%s'", username);
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44 password = saslprep(password);
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45 if not password then
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46 return nil, "Password fails SASLprep.";
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47 end
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48 local account = accounts:get(username);
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49 if account then
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50 account.password = password;
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51 return accounts:set(username, account);
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52 end
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53 return nil, "Account not available.";
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54 end
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55
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56 function provider.user_exists(username)
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57 local account = accounts:get(username);
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58 if not account then
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59 log("debug", "account not found for username '%s'", username);
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60 return nil, "Auth failed. Invalid username";
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61 end
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62 return true;
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63 end
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64
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65 function provider.users()
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66 return accounts:users();
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67 end
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68
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69 function provider.create_user(username, password)
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70 password = saslprep(password);
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71 if not password then
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72 return nil, "Password fails SASLprep.";
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73 end
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74 return accounts:set(username, {password = password});
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75 end
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76
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77 function provider.delete_user(username)
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78 return accounts:set(username, nil);
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79 end
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80
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81 function provider.get_sasl_handler()
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82 local getpass_authentication_profile = {
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83 plain = function(_, username, realm)
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84 local password = usermanager.get_password(username, realm);
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85 if not password then
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86 return "", nil;
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87 end
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88 return password, true;
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89 end
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90 };
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91 return new_sasl(host, getpass_authentication_profile);
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92 end
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93
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94 module:provides("auth", provider);
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95