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
|
<?php
/**
* Single signon for phpMyAdmin using OpenID
*
* This is just example how to use single signon with phpMyAdmin, it is
* not intended to be perfect code and look, only shows how you can
* integrate this functionality in your application.
*
* It uses OpenID pear package, see https://pear.php.net/package/OpenID
*
* User first authenticates using OpenID and based on content of $AUTH_MAP
* the login information is passed to phpMyAdmin in session data.
*/
declare(strict_types=1);
if (false === @include_once 'OpenID/RelyingParty.php') {
exit;
}
/* Change this to true if using phpMyAdmin over https */
$secure_cookie = false;
/**
* Map of authenticated users to MySQL user/password pairs.
*/
$AUTH_MAP = [
'https://launchpad.net/~username' => [
'user' => 'root',
'password' => '',
],
];
// phpcs:disable PSR1.Files.SideEffects,Squiz.Functions.GlobalFunction
/**
* Simple function to show HTML page with given content.
*
* @param string $contents Content to include in page
*/
function Show_page($contents): void
{
header('Content-Type: text/html; charset=utf-8');
echo '<?xml version="1.0" encoding="utf-8"?>' . "\n";
echo '<!DOCTYPE HTML>
<html lang="en" dir="ltr">
<head>
<link rel="icon" href="../favicon.ico" type="image/x-icon">
<link rel="shortcut icon" href="../favicon.ico" type="image/x-icon">
<meta charset="utf-8">
<title>phpMyAdmin OpenID signon example</title>
</head>
<body>';
if (isset($_SESSION['PMA_single_signon_error_message'])) {
echo '<p class="error">' . $_SESSION['PMA_single_signon_message'] . '</p>';
unset($_SESSION['PMA_single_signon_message']);
}
echo $contents;
echo '</body></html>';
}
/**
* Display error and exit
*
* @param Exception $e Exception object
*/
function Die_error($e): void
{
$contents = "<div class='relyingparty_results'>\n";
$contents .= '<pre>' . htmlspecialchars($e->getMessage()) . "</pre>\n";
$contents .= "</div class='relyingparty_results'>";
Show_page($contents);
exit;
}
// phpcs:enable
/* Need to have cookie visible from parent directory */
session_set_cookie_params(0, '/', '', $secure_cookie, true);
/* Create signon session */
$session_name = 'SignonSession';
session_name($session_name);
@session_start();
// Determine realm and return_to
$base = 'http';
if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on') {
$base .= 's';
}
$base .= '://' . $_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT'];
$realm = $base . '/';
$returnTo = $base . dirname($_SERVER['PHP_SELF']);
if ($returnTo[strlen($returnTo) - 1] !== '/') {
$returnTo .= '/';
}
$returnTo .= 'openid.php';
/* Display form */
if ((! count($_GET) && ! count($_POST)) || isset($_GET['phpMyAdmin'])) {
/* Show simple form */
$content = '<form action="openid.php" method="post">
OpenID: <input type="text" name="identifier"><br>
<input type="submit" name="start">
</form>';
Show_page($content);
exit;
}
/* Grab identifier */
$identifier = null;
if (isset($_POST['identifier']) && is_string($_POST['identifier'])) {
$identifier = $_POST['identifier'];
} elseif (isset($_SESSION['identifier']) && is_string($_SESSION['identifier'])) {
$identifier = $_SESSION['identifier'];
}
/* Create OpenID object */
try {
$o = new OpenID_RelyingParty($returnTo, $realm, $identifier);
} catch (Throwable $e) {
Die_error($e);
}
/* Redirect to OpenID provider */
if (isset($_POST['start'])) {
try {
$authRequest = $o->prepare();
} catch (Throwable $e) {
Die_error($e);
}
$url = $authRequest->getAuthorizeURL();
header('Location: ' . $url);
exit;
}
/* Grab query string */
if (! count($_POST)) {
[, $queryString] = explode('?', $_SERVER['REQUEST_URI']);
} else {
// Fetch the raw query body
$queryString = file_get_contents('php://input');
}
/* Check reply */
try {
$message = new OpenID_Message($queryString, OpenID_Message::FORMAT_HTTP);
} catch (Throwable $e) {
Die_error($e);
}
$id = $message->get('openid.claimed_id');
if (empty($id) || ! isset($AUTH_MAP[$id])) {
Show_page('<p>User not allowed!</p>');
exit;
}
$_SESSION['PMA_single_signon_user'] = $AUTH_MAP[$id]['user'];
$_SESSION['PMA_single_signon_password'] = $AUTH_MAP[$id]['password'];
$_SESSION['PMA_single_signon_HMAC_secret'] = hash('sha1', uniqid(strval(random_int(0, mt_getrandmax())), true));
session_write_close();
/* Redirect to phpMyAdmin (should use absolute URL here!) */
header('Location: ../index.php');
|
