prosody
62ef68f95b6f
plugins/mod_auth_internal_hashed.lua

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plugins/mod_auth_internal_hashed.lua @ 10682:62ef68f95b6f 0.11

mod_mam,mod_muc_mam: Allow other work to be performed during archive cleanup (fixes #1504) This lets Prosody handle socket related work between each step in the cleanup in order to prevent the server from being completely blocked during this. An async storage backend would not need this but those are currently rare.
author Kim Alvefur <zash@zash.se>
date Wed, 11 Mar 2020 21:15:01 +0100
parent 10522:b1ca849b8e3a
child 10563:e8db377a2983
child 10914:0d7d71dee0a0
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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 -- Copyright (C) 2010 Jeff Mitchell
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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 max = math.max;
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11
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12 local getAuthenticationDatabaseSHA1 = require "util.sasl.scram".getAuthenticationDatabaseSHA1;
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13 local usermanager = require "core.usermanager";
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14 local generate_uuid = require "util.uuid".generate;
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15 local new_sasl = require "util.sasl".new;
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16 local hex = require"util.hex";
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17 local to_hex, from_hex = hex.to, hex.from;
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18
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19 local log = module._log;
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20 local host = module.host;
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21
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22 local accounts = module:open_store("accounts");
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25
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26 -- Default; can be set per-user
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27 local default_iteration_count = 4096;
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29 -- define auth provider
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30 local provider = {};
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32 function provider.test_password(username, password)
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33 log("debug", "test password for user '%s'", username);
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34 local credentials = accounts:get(username) or {};
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36 if credentials.password ~= nil and string.len(credentials.password) ~= 0 then
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37 if credentials.password ~= password then
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38 return nil, "Auth failed. Provided password is incorrect.";
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39 end
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41 if provider.set_password(username, credentials.password) == nil then
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42 return nil, "Auth failed. Could not set hashed password from plaintext.";
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43 else
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44 return true;
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45 end
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46 end
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48 if credentials.iteration_count == nil or credentials.salt == nil or string.len(credentials.salt) == 0 then
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49 return nil, "Auth failed. Stored salt and iteration count information is not complete.";
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50 end
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51
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52 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, credentials.salt, credentials.iteration_count);
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53
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54 local stored_key_hex = to_hex(stored_key);
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55 local server_key_hex = to_hex(server_key);
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56
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57 if valid and stored_key_hex == credentials.stored_key and server_key_hex == credentials.server_key then
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58 return true;
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59 else
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60 return nil, "Auth failed. Invalid username, password, or password hash information.";
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61 end
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62 end
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64 function provider.set_password(username, password)
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65 log("debug", "set_password for username '%s'", username);
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66 local account = accounts:get(username);
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67 if account then
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68 account.salt = generate_uuid();
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69 account.iteration_count = max(account.iteration_count or 0, default_iteration_count);
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70 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, account.salt, account.iteration_count);
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71 if not valid then
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72 return valid, stored_key;
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73 end
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74 local stored_key_hex = to_hex(stored_key);
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75 local server_key_hex = to_hex(server_key);
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76
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77 account.stored_key = stored_key_hex
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78 account.server_key = server_key_hex
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79
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80 account.password = nil;
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81 return accounts:set(username, account);
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82 end
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83 return nil, "Account not available.";
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84 end
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85
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86 function provider.user_exists(username)
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87 local account = accounts:get(username);
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88 if not account then
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89 log("debug", "account not found for username '%s'", username);
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90 return nil, "Auth failed. Invalid username";
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91 end
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92 return true;
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93 end
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94
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95 function provider.users()
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96 return accounts:users();
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97 end
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98
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99 function provider.create_user(username, password)
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100 if password == nil then
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101 return accounts:set(username, {});
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102 end
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103 local salt = generate_uuid();
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104 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, salt, default_iteration_count);
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105 if not valid then
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106 return valid, stored_key;
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107 end
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108 local stored_key_hex = to_hex(stored_key);
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109 local server_key_hex = to_hex(server_key);
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110 return accounts:set(username, {
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111 stored_key = stored_key_hex, server_key = server_key_hex,
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112 salt = salt, iteration_count = default_iteration_count
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113 });
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114 end
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115
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116 function provider.delete_user(username)
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117 return accounts:set(username, nil);
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118 end
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119
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120 function provider.get_sasl_handler()
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121 local testpass_authentication_profile = {
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parents: 6707
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122 plain_test = function(_, username, password, realm)
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52fe5df91c65 mod_auth_internal_plain, mod_auth_internal_hashed: No need to nodeprep here.
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parents: 5156
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123 return usermanager.test_password(username, realm, password), true;
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parents: 4764
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124 end,
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125 scram_sha_1 = function(_, username)
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126 local credentials = accounts:get(username);
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127 if not credentials then return; end
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parents: 4764
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128 if credentials.password then
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Kim Alvefur <zash@zash.se>
parents: 8056
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129 if provider.set_password(username, credentials.password) == nil then
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130 return nil, "Auth failed. Could not set hashed password from plaintext.";
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parents: 8056
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131 end
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parents: 5302
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132 credentials = accounts:get(username);
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133 if not credentials then return; end
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parents: 4764
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134 end
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5500
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135
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Kim Alvefur <zash@zash.se>
parents: 8055
diff changeset
136 local stored_key, server_key = credentials.stored_key, credentials.server_key;
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diff changeset
137 local iteration_count, salt = credentials.iteration_count, credentials.salt;
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parents: 4764
diff changeset
138 stored_key = stored_key and from_hex(stored_key);
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parents: 4764
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139 server_key = server_key and from_hex(server_key);
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parents: 4764
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140 return stored_key, server_key, iteration_count, salt, true;
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parents: 4764
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141 end
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Waqas Hussain <waqas20@gmail.com>
parents: 4764
diff changeset
142 };
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Waqas Hussain <waqas20@gmail.com>
parents: 4764
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143 return new_sasl(host, testpass_authentication_profile);
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parents: 4764
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144 end
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5500
diff changeset
145
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Waqas Hussain <waqas20@gmail.com>
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146 module:provides("auth", provider);
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parents: 4764
diff changeset
147