prosody
b350d9753804
plugins/mod_auth_internal_hashed.lua

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plugins/mod_auth_internal_hashed.lua @ 3207:b350d9753804

mod_auth_internal_hashed: Store stored_key and server_key when setting a password.
author Tobias Markmann <tm@ayena.de>
date Tue, 08 Jun 2010 14:54:47 +0200
parent 3205:2dcd826bbbc6
child 3208:4b660bf61048
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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db9def53fe9c Check in mod_hashpassauth -- works!
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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 datamanager = require "util.datamanager";
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11 local log = require "util.logger".init("usermanager");
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12 local type = type;
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13 local error = error;
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14 local ipairs = ipairs;
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15 local hashes = require "util.hashes";
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16 local jid_bare = require "util.jid".bare;
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17 local getAuthenticationDatabaseSHA1 = require "util.sasl.scram".getAuthenticationDatabaseSHA1;
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18 local config = require "core.configmanager";
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19 local usermanager = require "core.usermanager";
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20 local generate_uuid = require "util.uuid".generate;
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21 local new_sasl = require "util.sasl".new;
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22 local nodeprep = require "util.encodings".stringprep.nodeprep;
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23 local hosts = hosts;
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24
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25 local prosody = _G.prosody;
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26
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27 local is_cyrus = usermanager.is_cyrus;
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28
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29 -- Default; can be set per-user
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30 local iteration_count = 4096;
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31
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32 function new_hashpass_provider(host)
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33 local provider = { name = "internal_hashed" };
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34 log("debug", "initializing hashpass authentication provider for host '%s'", host);
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35
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36 function provider.test_password(username, password)
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37 if is_cyrus(host) then return nil, "Legacy auth not supported with Cyrus SASL."; end
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38 local credentials = datamanager.load(username, host, "accounts") or {};
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39
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40 if credentials.password ~= nil and string.len(credentials.password) ~= 0 then
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41 if credentials.password ~= password then
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42 return nil, "Auth failed. Provided password is incorrect.";
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43 end
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44
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45 if provider.set_password(username, credentials.password) == nil then
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46 return nil, "Auth failed. Could not set hashed password from plaintext.";
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47 else
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48 return true;
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49 end
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50 end
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51
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52 if credentials.iteration_count == nil or credentials.salt == nil or string.len(credentials.salt) == 0 then
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53 return nil, "Auth failed. Stored salt and iteration count information is not complete.";
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54 end
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55
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56 if credentials.saltedPasswordSHA1
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57
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58 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, credentials.salt, credentials.iteration_count);
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59 local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
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60 local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
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61
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62 if valid and stored_key_hex == credentials.stored_key and server_key_hex == credentials.server_key_hex then
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63 return true;
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64 else
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65 return nil, "Auth failed. Invalid username, password, or password hash information.";
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66 end
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67 end
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68
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69 function provider.set_password(username, password)
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70 if is_cyrus(host) then return nil, "Passwords unavailable for Cyrus SASL."; end
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71 local account = datamanager.load(username, host, "accounts");
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72 if account then
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73 if account.iteration_count == nil then
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74 account.iteration_count = iteration_count;
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75 end
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76
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77 if account.salt == nil then
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78 account.salt = generate_uuid();
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79 end
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80
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81 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, credentials.salt, credentials.iteration_count);
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82 local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
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83 local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
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84
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85 account.stored_key = stored_key_hex
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86 account.server_key = server_key_hex
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87
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88 account.password = nil;
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89 return datamanager.store(username, host, "accounts", account);
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90 end
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91 return nil, "Account not available.";
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92 end
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93
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94 function provider.user_exists(username)
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95 if is_cyrus(host) then return true; end
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96 local account = datamanager.load(username, host, "accounts");
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97 if not account then
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98 log("debug", "account not found for username '%s' at host '%s'", username, module.host);
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99 return nil, "Auth failed. Invalid username";
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100 end
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101 if (account.hashpass == nil or string.len(account.hashpass) == 0) and (account.password == nil or string.len(account.password) == 0) then
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102 log("debug", "account password not set or zero-length for username '%s' at host '%s'", username, module.host);
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103 return nil, "Auth failed. Password invalid.";
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104 end
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105 return true;
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106 end
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107
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108 function provider.create_user(username, password)
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109 if is_cyrus(host) then return nil, "Account creation/modification not available with Cyrus SASL."; end
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110 local salt = generate_uuid();
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111 local valid, stored_key, server_key = saltedPasswordSHA1(password, salt, iteration_count);
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112 local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
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113 local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end);
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114 return datamanager.store(username, host, "accounts", {stored_key = stored_key_hex, server_key = server_key_hex, salt = salt, iteration_count = iteration_count});
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115 end
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116
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117 function provider.get_sasl_handler()
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118 local realm = module:get_option("sasl_realm") or module.host;
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119 local testpass_authentication_profile = {
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120 plain_test = function(username, password, realm)
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121 local prepped_username = nodeprep(username);
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122 if not prepped_username then
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123 log("debug", "NODEprep failed on username: %s", username);
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124 return "", nil;
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125 end
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126 return usermanager.test_password(prepped_username, password, realm), true;
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127 end,
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parents: 3187
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128 scram_sha_1 = function(username, realm)
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
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parents: 3187
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129 local credentials = datamanager.load(username, host, "accounts") or {};
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
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parents: 3187
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130 if credentials.password then
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
Waqas Hussain <waqas20@gmail.com>
parents: 3187
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131 usermanager.set_password(username, credentials.password);
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
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parents: 3187
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132 credentials = datamanager.load(username, host, "accounts") or {};
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
Waqas Hussain <waqas20@gmail.com>
parents: 3187
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133 end
3205
2dcd826bbbc6 mod_auth_internal_hashed: Store StoredKey and ServerKey instead of salted hashed password.
Tobias Markmann <tm@ayena.de>
parents: 3189
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134 local stored_key, server_key, iteration_count, salt = credentials.stored_key, credentials.server_key, credentials.iteration_count, credentials.salt;
2dcd826bbbc6 mod_auth_internal_hashed: Store StoredKey and ServerKey instead of salted hashed password.
Tobias Markmann <tm@ayena.de>
parents: 3189
diff changeset
135 stored_key = stored_key and stored_key:gsub("..", function(x) return string.char(tonumber(x, 16)); end);
2dcd826bbbc6 mod_auth_internal_hashed: Store StoredKey and ServerKey instead of salted hashed password.
Tobias Markmann <tm@ayena.de>
parents: 3189
diff changeset
136 server_key = server_key and server_key:gsub("..", function(x) return string.char(tonumber(x, 16)); end);
2dcd826bbbc6 mod_auth_internal_hashed: Store StoredKey and ServerKey instead of salted hashed password.
Tobias Markmann <tm@ayena.de>
parents: 3189
diff changeset
137 return stored_key, server_key, iteration_count, salt, true;
3186
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
138 end
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
139 };
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
140 return new_sasl(realm, testpass_authentication_profile);
3164
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
141 end
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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142
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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143 function provider.is_admin(jid)
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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144 local admins = config.get(host, "core", "admins");
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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145 if admins ~= config.get("*", "core", "admins") and type(admins) == "table" then
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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146 jid = jid_bare(jid);
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
147 for _,admin in ipairs(admins) do
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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148 if admin == jid then return true; end
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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149 end
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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150 elseif admins then
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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151 log("error", "Option 'admins' for host '%s' is not a table", host);
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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152 end
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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153 return is_admin(jid); -- Test whether it's a global admin instead
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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154 end
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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155 return provider;
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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156 end
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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157
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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158 module:add_item("auth-provider", new_hashpass_provider(module.host));
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
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159