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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
<?php
class ShibAuth
{
/**
* Log user into master-server using the data provided by the current shibboleth session
* @param ?string $accessCode optional one-time access code to retreive session data via thrift
* @return array{status: string, firstName: string, lastName: string, mail: string, token: string, sessionId: string, userId: string, organizationId: string, url: string, error: string}
*/
private static function loginInternal(?string $accessCode = null): array
{
if ($accessCode !== null) {
$entrop = strlen(count_chars($accessCode, 3));
if (strlen($accessCode) < 32 || strlen($accessCode) > 64 || $entrop < 10) {
return ['status' => 'error', 'error' => 'Malformed accessCode'];
}
}
// Handle
if (empty($_SERVER['persistent-id'])) {
// No persistent id given, should not happen!
file_put_contents('/tmp/shib-nopid-' . time() . '-' . $_SERVER['REMOTE_ADDR'] . '.txt', print_r($_SERVER, true));
return ['status' => 'error', 'error' => 'Shibboleth metadata missing!'];
}
// Query database for user
// First, use persistent-id as-is
$shibId = [ md5($_SERVER['persistent-id']) ];
// ... but we might have multiple persistent IDs, split
if (strpos($_SERVER['persistent-id'], ';') !== false) {
foreach (explode(';', $_SERVER['persistent-id']) as $s) {
if (empty($s))
continue;
$shibId[] = md5($s);
}
}
// Figure out role
if (strpos(";{$_SERVER['entitlement']};", CONFIG_ENTITLEMENT) !== false) {
$role = 'TUTOR';
} else if (strpos(";{$_SERVER[CONFIG_SCOPED_AFFILIATION]};", ';employee@') !== false
|| strpos(";{$_SERVER[CONFIG_SCOPED_AFFILIATION]};", ';staff@') !== false
|| strpos(";{$_SERVER[CONFIG_SCOPED_AFFILIATION]};", ';faculty@') !== false) {
$role = 'TUTOR';
} else {
file_put_contents('/tmp/shib-student-' . time() . '-' . $_SERVER['REMOTE_ADDR'] . '.txt', print_r($_SERVER, true));
$role = 'STUDENT';
// NEW: Ignore students for now
return [
'status' => 'error',
'error' => "Sie wurden als Student eingestuft und können sich daher nicht an der " . CONFIG_SUITE . "-Suite anmelden."
. "\nFalls Ihr Nutzerkonto kein Studentenkonto ist stellen Sie sicher, dass Ihr IdP für berechtigte"
. "\nAccounts entweder das " . CONFIG_SUITE . "-Entitlement ausliefert, oder das Attribut " . CONFIG_SCOPED_AFFILIATION
. "\nausgeliefert wird, und es entweder 'employee@..', 'staff@..' oder 'faculty@..' enthält."
. "\n\nMehr Informationen finden Sie unter " . CONFIG_HELPURL
];
// end IGNORE STUDENTS
}
// Now we have an array of all persistent-ids, plus the raw string; see if any of those match
$user = Database::queryFirst("SELECT user.userid, user.organizationid, user.firstname, user.lastname, user.email "
. " FROM user "
. " INNER JOIN organization USING (organizationid) "
. " WHERE user.shibid IN (:shibid) LIMIT 1", array('shibid' => $shibId));
if ($user === false) {
// Not found, so we don't know which satellite to use
if ($role === 'STUDENT') {
$response['status'] = 'ok';
$response['firstName'] = $_SERVER['givenName'] ?? 'Anonymous';
$response['lastName'] = $_SERVER[CONFIG_SURNAME] ?? 'Student';
$response['mail'] = $_SERVER['mail'] ?? 'void@none.invalid';
$response['userId'] = $shibId;
// Try to figure out orgId
if (!isset($response['organizationId']) && isset($_SERVER[CONFIG_EPPN])) {
if (preg_match('/@(.+)$/', $_SERVER[CONFIG_EPPN], $out)) {
$out = Database::queryFirst("SELECT organizationid FROM organization_suffix WHERE suffix = :suffix", [
'suffix' => $out[1]
]);
if ($out !== false) {
$response['organizationId'] = $out['organizationid'];
}
}
}
if (!isset($response['organizationId']) && isset($_SERVER[CONFIG_SCOPED_AFFILIATION])) {
if (preg_match('/(^|;)[^@]+@([^;]+)/', $_SERVER[CONFIG_SCOPED_AFFILIATION], $out)) {
$out = Database::queryFirst("SELECT organizationid FROM organization_suffix WHERE suffix = :suffix", [
'suffix' => $out[2]
]);
if ($out !== false) {
$response['organizationId'] = $out['organizationid'];
}
}
}
// This one we send to the running master server handler
$rpc = $response;
$rpc['role'] = $role;
if (isset($response['organizationId']) && $accessCode === null) {
$response['satellites2'] = self::getSatelliteList($response['organizationId']);
}
} else {
$response['status'] = 'unregistered';
$response['error'] = 'Sie müssen sich erst für die Nutzung von ' . CONFIG_SUITE . ' registrieren';
}
$response['id'] = $shibId;
$response['url'] = CONFIG_MASTERWEBIF;
file_put_contents('/tmp/shib-unreg-' . time() . '-' . $_SERVER['REMOTE_ADDR'] . '.txt', print_r($_SERVER, true));
} else {
/*
if (in_array($shibId, unserialize(CONFIG_ADMINS), true) || $shibId === '2fa5c3e020a5aca0cbf9a562268d5173-') {
$role = 'STUDENT';
}
*/
// Found, see if we got personal information, either temporarily through metadata, or from database
$firstName = $user['firstname'];
$lastName = $user['lastname'];
$mail = $user['email'];
if (empty($firstName) && isset($_SERVER['givenName']))
$firstName = trim($_SERVER['givenName']);
if (empty($lastName) && isset($_SERVER[CONFIG_SURNAME]))
$lastName = trim($_SERVER[CONFIG_SURNAME]);
if (empty($mail) && isset($_SERVER['mail']))
$mail = trim($_SERVER['mail']);
//
$login = (empty($user['userid']) ? $shibId : $user['userid'] );
if (empty($firstName) || empty($lastName) || empty($login)) {
// This means the user did not provide personal information on signup, nor does the IdP send them
$response['status'] = 'anonymous';
$response['error'] = "Ihr IdP liefert nicht die erforderlichen Attribute\n"
. CONFIG_SURNAME . ', ' . 'givenName' . ', ' . 'email';
} else {
// Seems ok!
//
$response['status'] = 'ok';
$response['firstName'] = $firstName;
$response['lastName'] = $lastName;
$response['mail'] = $mail;
$response['userId'] = $user['userid'];
$response['organizationId'] = $user['organizationid'];
// This one we send to the running master server handler
$rpc = $response;
$rpc['userId'] = $login;
$rpc['role'] = $role;
// This one we only send to the user
$response['satellites2'] = self::getSatelliteList($user['organizationid']);
}
}
if (isset($rpc)) {
if ($accessCode !== null) {
$rpc['accessCode'] = $accessCode;
}
$reply = RPC::submit($rpc);
if (preg_match('/^TOKEN:(\w+) SESSIONID:(\w+)$/', $reply, $out)) {
// For talking to the sat server, also referred to as userToken in Java
$response['token'] = $out[1];
// For talking to the master server - not known by satellite server, referred to as masterToken in Java
$response['sessionId'] = $out[2];
} else {
if (empty($rpc['mail'])) {
$reply .= ' (No email given)';
}
if (empty($rpc['firstName'])) {
$reply .= ' (No first name given)';
}
if (empty($rpc['lastName'])) {
$reply .= ' (No last name given)';
}
if (empty($rpc['organizationId'])) {
$reply .= ' (No organization id found)';
}
$response['error'] = $reply;
$response['status'] = 'error';
}
}
return $response;
}
public static function login(?string $accessCode = null): array
{
$res = self::loginInternal($accessCode);
if ($res['status'] !== 'ok' && isset($res['error']) && $accessCode !== null) {
RPC::submit(['status' => 'error', 'error' => $res['error'], 'accessCode' => $accessCode]);
}
return $res;
}
private static function getSatelliteList($orgId)
{
// Determine satellite(s)
$res = Database::simpleQuery("SELECT satellitename, addresses, certsha256 FROM satellite"
. " WHERE organizationid = :organizationid AND userid IS NULL", array('organizationid' => $orgId));
$sat2 = array();
while ($row = $res->fetch(PDO::FETCH_ASSOC)) {
$addrs = json_decode($row['addresses'], true);
if (!is_array($addrs) || empty($addrs))
continue;
$sat2[$row['satellitename']] = array(
'addresses' => $addrs,
'certHash' => $row['certsha256']
);
}
return $sat2;
}
}
|
