1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
<?php
/**
* Authentication processing filter to generate a persistent NameID.
*
* @package SimpleSAMLphp
*/
class sspmod_saml_Auth_Process_SQLPersistentNameID extends sspmod_saml_BaseNameIDGenerator
{
/**
* Which attribute contains the unique identifier of the user.
*
* @var string
*/
private $attribute;
/**
* Whether we should create a persistent NameID if not explicitly requested (as saml:PersistentNameID does).
*
* @var boolean
*/
private $allowUnspecified = false;
/**
* Whether we should create a persistent NameID if a different format is requested.
*
* @var boolean
*/
private $allowDifferent = false;
/**
* Whether we should ignore allowCreate in the NameID policy
*
* @var boolean
*/
private $alwaysCreate = false;
/**
* Initialize this filter, parse configuration.
*
* @param array $config Configuration information about this filter.
* @param mixed $reserved For future use.
*
* @throws SimpleSAML_Error_Exception If the 'attribute' option is not specified.
*/
public function __construct($config, $reserved)
{
parent::__construct($config, $reserved);
assert('is_array($config)');
$this->format = SAML2_Const::NAMEID_PERSISTENT;
if (!isset($config['attribute'])) {
throw new SimpleSAML_Error_Exception("PersistentNameID: Missing required option 'attribute'.");
}
$this->attribute = $config['attribute'];
if (isset($config['allowUnspecified'])) {
$this->allowUnspecified = (bool) $config['allowUnspecified'];
}
if (isset($config['allowDifferent'])) {
$this->allowDifferent = (bool) $config['allowDifferent'];
}
if (isset($config['alwaysCreate'])) {
$this->alwaysCreate = (bool) $config['alwaysCreate'];
}
}
/**
* Get the NameID value.
*
* @param array $state The state array.
* @return string|null The NameID value.
*
* @throws sspmod_saml_Error if the NameID creation policy is invalid.
*/
protected function getValue(array &$state)
{
if (!isset($state['saml:NameIDFormat']) && !$this->allowUnspecified) {
SimpleSAML_Logger::debug(
'SQLPersistentNameID: Request did not specify persistent NameID format, '.
'not generating persistent NameID.'
);
return null;
}
$validNameIdFormats = @array_filter(array(
$state['saml:NameIDFormat'],
$state['SPMetadata']['NameIDPolicy'],
$state['SPMetadata']['NameIDFormat']
));
if (count($validNameIdFormats) && !in_array($this->format, $validNameIdFormats) && !$this->allowDifferent) {
SimpleSAML_Logger::debug(
'SQLPersistentNameID: SP expects different NameID format ('.
implode(', ', $validNameIdFormats).'), not generating persistent NameID.'
);
return null;
}
if (!isset($state['Destination']['entityid'])) {
SimpleSAML_Logger::warning('SQLPersistentNameID: No SP entity ID - not generating persistent NameID.');
return null;
}
$spEntityId = $state['Destination']['entityid'];
if (!isset($state['Source']['entityid'])) {
SimpleSAML_Logger::warning('SQLPersistentNameID: No IdP entity ID - not generating persistent NameID.');
return null;
}
$idpEntityId = $state['Source']['entityid'];
if (!isset($state['Attributes'][$this->attribute]) || count($state['Attributes'][$this->attribute]) === 0) {
SimpleSAML_Logger::warning(
'SQLPersistentNameID: Missing attribute '.var_export($this->attribute, true).
' on user - not generating persistent NameID.'
);
return null;
}
if (count($state['Attributes'][$this->attribute]) > 1) {
SimpleSAML_Logger::warning(
'SQLPersistentNameID: More than one value in attribute '.var_export($this->attribute, true).
' on user - not generating persistent NameID.'
);
return null;
}
$uid = array_values($state['Attributes'][$this->attribute]); // just in case the first index is no longer 0
$uid = $uid[0];
if (empty($uid)) {
SimpleSAML\Logger::warning(
'Empty value in attribute '.var_export($this->attribute, true).
' on user - not generating persistent NameID.'
);
return null;
}
$value = sspmod_saml_IdP_SQLNameID::get($idpEntityId, $spEntityId, $uid);
if ($value !== null) {
SimpleSAML_Logger::debug(
'SQLPersistentNameID: Found persistent NameID '.var_export($value, true).' for user '.
var_export($uid, true).'.'
);
return $value;
}
if ((!isset($state['saml:AllowCreate']) || !$state['saml:AllowCreate']) && !$this->alwaysCreate) {
SimpleSAML_Logger::warning(
'SQLPersistentNameID: Did not find persistent NameID for user, and not allowed to create new NameID.'
);
throw new sspmod_saml_Error(
SAML2_Const::STATUS_RESPONDER,
'urn:oasis:names:tc:SAML:2.0:status:InvalidNameIDPolicy'
);
}
$value = bin2hex(openssl_random_pseudo_bytes(20));
SimpleSAML_Logger::debug(
'SQLPersistentNameID: Created persistent NameID '.var_export($value, true).' for user '.
var_export($uid, true).'.'
);
sspmod_saml_IdP_SQLNameID::add($idpEntityId, $spEntityId, $uid, $value);
return $value;
}
}
|
