prosody
b98154bbe0e0
plugins/mod_auth_internal_hashed.lua

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plugins/mod_auth_internal_hashed.lua @ 4864:b98154bbe0e0

stanza_router: Close stream for unhandled stanzas from unauthenticated connections (we can't reply)
author Matthew Wild <mwild1@gmail.com>
date Sat, 12 May 2012 01:47:53 +0100
parent 4764:0df5b2d5dff3
child 5116:5f9066db1b4d
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("auth_internal_hashed");
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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 nodeprep = require "util.encodings".stringprep.nodeprep;
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17
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18 local to_hex;
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19 do
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20 local function replace_byte_with_hex(byte)
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21 return ("%02x"):format(byte:byte());
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22 end
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23 function to_hex(binary_string)
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24 return binary_string:gsub(".", replace_byte_with_hex);
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25 end
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26 end
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27
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28 local from_hex;
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29 do
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30 local function replace_hex_with_byte(hex)
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31 return string.char(tonumber(hex, 16));
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32 end
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33 function from_hex(hex_string)
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34 return hex_string:gsub("..", replace_hex_with_byte);
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35 end
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36 end
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37
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38
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39 -- Default; can be set per-user
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40 local iteration_count = 4096;
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41
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42 function new_hashpass_provider(host)
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43 local provider = { name = "internal_hashed" };
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44 log("debug", "initializing internal_hashed authentication provider for host '%s'", host);
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45
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46 function provider.test_password(username, password)
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47 local credentials = datamanager.load(username, host, "accounts") or {};
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48
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49 if credentials.password ~= nil and string.len(credentials.password) ~= 0 then
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50 if credentials.password ~= password then
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51 return nil, "Auth failed. Provided password is incorrect.";
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52 end
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53
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54 if provider.set_password(username, credentials.password) == nil then
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55 return nil, "Auth failed. Could not set hashed password from plaintext.";
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56 else
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57 return true;
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58 end
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59 end
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60
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61 if credentials.iteration_count == nil or credentials.salt == nil or string.len(credentials.salt) == 0 then
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62 return nil, "Auth failed. Stored salt and iteration count information is not complete.";
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63 end
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64
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65 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, credentials.salt, credentials.iteration_count);
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66
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67 local stored_key_hex = to_hex(stored_key);
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68 local server_key_hex = to_hex(server_key);
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69
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70 if valid and stored_key_hex == credentials.stored_key and server_key_hex == credentials.server_key then
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71 return true;
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72 else
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73 return nil, "Auth failed. Invalid username, password, or password hash information.";
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74 end
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75 end
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76
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77 function provider.set_password(username, password)
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78 local account = datamanager.load(username, host, "accounts");
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79 if account then
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80 account.salt = account.salt or generate_uuid();
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81 account.iteration_count = account.iteration_count or iteration_count;
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82 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, account.salt, account.iteration_count);
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83 local stored_key_hex = to_hex(stored_key);
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84 local server_key_hex = to_hex(server_key);
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85
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86 account.stored_key = stored_key_hex
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87 account.server_key = server_key_hex
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88
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89 account.password = nil;
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90 return datamanager.store(username, host, "accounts", account);
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91 end
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92 return nil, "Account not available.";
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93 end
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94
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95 function provider.user_exists(username)
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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 return true;
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102 end
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103
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104 function provider.create_user(username, password)
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105 if password == nil then
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106 return datamanager.store(username, host, "accounts", {});
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107 end
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108 local salt = generate_uuid();
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109 local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, salt, iteration_count);
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110 local stored_key_hex = to_hex(stored_key);
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111 local server_key_hex = to_hex(server_key);
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112 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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113 end
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114
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115 function provider.delete_user(username)
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116 return datamanager.store(username, host, "accounts", nil);
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117 end
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118
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119 function provider.get_sasl_handler()
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120 local testpass_authentication_profile = {
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121 plain_test = function(sasl, username, password, realm)
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122 local prepped_username = nodeprep(username);
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
123 if not prepped_username then
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
124 log("debug", "NODEprep failed on username: %s", username);
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
125 return "", nil;
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
126 end
3395
e736f68c1047 usermanager, mod_auth_internal_hashed, mod_legacyauth: New order of parameters for usermanager.test_password - username, host, password
Matthew Wild <mwild1@gmail.com>
parents: 3389
diff changeset
127 return usermanager.test_password(prepped_username, realm, password), true;
3189
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
Waqas Hussain <waqas20@gmail.com>
parents: 3187
diff changeset
128 end,
3981
2b0b8fe68df2 util.sasl.*, mod_auth_*, mod_saslauth: Pass SASL handler as first parameter to SASL profile callbacks.
Waqas Hussain <waqas20@gmail.com>
parents: 3454
diff changeset
129 scram_sha_1 = function(sasl, username, realm)
3389
9e2485880cd6 mod_auth_internal_hashed: Fixed SCRAM-SHA-1 mechanism to not traceback on non-existent users.
Waqas Hussain <waqas20@gmail.com>
parents: 3335
diff changeset
130 local credentials = datamanager.load(username, host, "accounts");
9e2485880cd6 mod_auth_internal_hashed: Fixed SCRAM-SHA-1 mechanism to not traceback on non-existent users.
Waqas Hussain <waqas20@gmail.com>
parents: 3335
diff changeset
131 if not credentials then return; end
3189
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
Waqas Hussain <waqas20@gmail.com>
parents: 3187
diff changeset
132 if credentials.password then
3204
7a15cbf23c5b Fix missing parameter in mod_auth_internal_hashed.
Kim Alvefur <zash@zash.se>
parents: 3189
diff changeset
133 usermanager.set_password(username, credentials.password, host);
3389
9e2485880cd6 mod_auth_internal_hashed: Fixed SCRAM-SHA-1 mechanism to not traceback on non-existent users.
Waqas Hussain <waqas20@gmail.com>
parents: 3335
diff changeset
134 credentials = datamanager.load(username, host, "accounts");
9e2485880cd6 mod_auth_internal_hashed: Fixed SCRAM-SHA-1 mechanism to not traceback on non-existent users.
Waqas Hussain <waqas20@gmail.com>
parents: 3335
diff changeset
135 if not credentials then return; end
3189
d686abb6b069 mod_auth_internal_hashed: Added SCRAM-SHA-1 support for SASL.
Waqas Hussain <waqas20@gmail.com>
parents: 3187
diff changeset
136 end
3211
d69e90ffbc09 mod_auth_internal_hashed: Convert hashpass to server_key/stored_key on SCRAM-SHA-1 login.
Tobias Markmann <tm@ayena.de>
parents: 3210
diff changeset
137
3205
2dcd826bbbc6 mod_auth_internal_hashed: Store StoredKey and ServerKey instead of salted hashed password.
Tobias Markmann <tm@ayena.de>
parents: 3189
diff changeset
138 local stored_key, server_key, iteration_count, salt = credentials.stored_key, credentials.server_key, credentials.iteration_count, credentials.salt;
3288
1a84d7d6f667 mod_auth_internal_hashed: Remove far too many instances of inline hex conversion using gsub, which was creating useless closures and what-not
Matthew Wild <mwild1@gmail.com>
parents: 3287
diff changeset
139 stored_key = stored_key and from_hex(stored_key);
1a84d7d6f667 mod_auth_internal_hashed: Remove far too many instances of inline hex conversion using gsub, which was creating useless closures and what-not
Matthew Wild <mwild1@gmail.com>
parents: 3287
diff changeset
140 server_key = server_key and from_hex(server_key);
3205
2dcd826bbbc6 mod_auth_internal_hashed: Store StoredKey and ServerKey instead of salted hashed password.
Tobias Markmann <tm@ayena.de>
parents: 3189
diff changeset
141 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
142 end
b5f261123013 mod_auth_internal, mod_auth_internal_hashed: Updated to provide get_sasl_handler.
Waqas Hussain <waqas20@gmail.com>
parents: 3180
diff changeset
143 };
4160
f08f649b898b mod_auth_*: Get rid of undocumented and broken 'sasl_realm' config option.
Waqas Hussain <waqas20@gmail.com>
parents: 3994
diff changeset
144 return new_sasl(module.host, testpass_authentication_profile);
3164
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
145 end
3287
e425e27c12be mod_auth_internal, mod_auth_internal_hashed: Remove is_admin method from providers
Matthew Wild <mwild1@gmail.com>
parents: 3269
diff changeset
146
3164
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
147 return provider;
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
148 end
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
149
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
150 module:add_item("auth-provider", new_hashpass_provider(module.host));
db9def53fe9c Check in mod_hashpassauth -- works!
Jeff Mitchell <jeff@jefferai.org>
parents:
diff changeset
151