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
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* HTTP Authentication plugin for phpMyAdmin.
* NOTE: Requires PHP loaded as a Apache module.
*
* @package PhpMyAdmin-Authentication
* @subpackage HTTP
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/* Get the authentication interface */
require_once 'libraries/plugins/AuthenticationPlugin.class.php';
/**
* Handles the HTTP authentication methods
*
* @package PhpMyAdmin-Authentication
*/
class AuthenticationHttp extends AuthenticationPlugin
{
/**
* Displays authentication form
*
* @global string the font face to use in case of failure
* @global string the default font size to use in case of failure
* @global string the big font size to use in case of failure
*
* @return boolean always true (no return indeed)
*/
public function auth()
{
/* Perform logout to custom URL */
if (! empty($_REQUEST['old_usr'])
&& ! empty($GLOBALS['cfg']['Server']['LogoutURL'])
) {
PMA_sendHeaderLocation($GLOBALS['cfg']['Server']['LogoutURL']);
exit;
}
if (empty($GLOBALS['cfg']['Server']['auth_http_realm'])) {
if (empty($GLOBALS['cfg']['Server']['verbose'])) {
$server_message = $GLOBALS['cfg']['Server']['host'];
} else {
$server_message = $GLOBALS['cfg']['Server']['verbose'];
}
$realm_message = 'phpMyAdmin ' . $server_message;
} else {
$realm_message = $GLOBALS['cfg']['Server']['auth_http_realm'];
}
// remove non US-ASCII to respect RFC2616
$realm_message = preg_replace('/[^\x20-\x7e]/i', '', $realm_message);
header('WWW-Authenticate: Basic realm="' . $realm_message . '"');
header('HTTP/1.0 401 Unauthorized');
if (php_sapi_name() !== 'cgi-fcgi') {
header('status: 401 Unauthorized');
}
/* HTML header */
$response = PMA_Response::getInstance();
$response->getFooter()->setMinimal();
$header = $response->getHeader();
$header->setTitle(__('Access denied'));
$header->disableMenu();
$header->setBodyId('loginform');
$response->addHTML('<h1>');
$response->addHTML(sprintf(__('Welcome to %s'), ' phpMyAdmin'));
$response->addHTML('</h1>');
$response->addHTML('<h3>');
$response->addHTML(
PMA_Message::error(
__('Wrong username/password. Access denied.')
)
);
$response->addHTML('</h3>');
if (file_exists(CUSTOM_FOOTER_FILE)) {
include CUSTOM_FOOTER_FILE;
}
exit;
}
/**
* Gets advanced authentication settings
*
* @global string the username if register_globals is on
* @global string the password if register_globals is on
* @global array the array of server variables if register_globals is
* off
* @global array the array of environment variables if register_globals
* is off
* @global string the username for the ? server
* @global string the password for the ? server
* @global string the username for the WebSite Professional server
* @global string the password for the WebSite Professional server
* @global string the username of the user who logs out
*
* @return boolean whether we get authentication settings or not
*/
public function authCheck()
{
global $PHP_AUTH_USER, $PHP_AUTH_PW;
// Grabs the $PHP_AUTH_USER variable whatever are the values of the
// 'register_globals' and the 'variables_order' directives
if (empty($PHP_AUTH_USER)) {
if (PMA_getenv('PHP_AUTH_USER')) {
$PHP_AUTH_USER = PMA_getenv('PHP_AUTH_USER');
} elseif (PMA_getenv('REMOTE_USER')) {
// CGI, might be encoded, see below
$PHP_AUTH_USER = PMA_getenv('REMOTE_USER');
} elseif (PMA_getenv('REDIRECT_REMOTE_USER')) {
// CGI, might be encoded, see below
$PHP_AUTH_USER = PMA_getenv('REDIRECT_REMOTE_USER');
} elseif (PMA_getenv('AUTH_USER')) {
// WebSite Professional
$PHP_AUTH_USER = PMA_getenv('AUTH_USER');
} elseif (PMA_getenv('HTTP_AUTHORIZATION')
&& false === strpos(PMA_getenv('HTTP_AUTHORIZATION'), '<')
) {
// IIS, might be encoded, see below; also prevent XSS
$PHP_AUTH_USER = PMA_getenv('HTTP_AUTHORIZATION');
} elseif (PMA_getenv('Authorization')) {
// FastCGI, might be encoded, see below
$PHP_AUTH_USER = PMA_getenv('Authorization');
}
}
// Grabs the $PHP_AUTH_PW variable whatever are the values of the
// 'register_globals' and the 'variables_order' directives
if (empty($PHP_AUTH_PW)) {
if (PMA_getenv('PHP_AUTH_PW')) {
$PHP_AUTH_PW = PMA_getenv('PHP_AUTH_PW');
} elseif (PMA_getenv('REMOTE_PASSWORD')) {
// Apache/CGI
$PHP_AUTH_PW = PMA_getenv('REMOTE_PASSWORD');
} elseif (PMA_getenv('AUTH_PASSWORD')) {
// WebSite Professional
$PHP_AUTH_PW = PMA_getenv('AUTH_PASSWORD');
}
}
// Decode possibly encoded information (used by IIS/CGI/FastCGI)
// (do not use explode() because a user might have a colon in his password
if (strcmp(substr($PHP_AUTH_USER, 0, 6), 'Basic ') == 0) {
$usr_pass = base64_decode(substr($PHP_AUTH_USER, 6));
if (! empty($usr_pass)) {
$colon = strpos($usr_pass, ':');
if ($colon) {
$PHP_AUTH_USER = substr($usr_pass, 0, $colon);
$PHP_AUTH_PW = substr($usr_pass, $colon + 1);
}
unset($colon);
}
unset($usr_pass);
}
// User logged out -> ensure the new username is not the same
$old_usr = isset($_REQUEST['old_usr']) ? $_REQUEST['old_usr'] : '';
if (! empty($old_usr)
&& (isset($PHP_AUTH_USER) && $old_usr == $PHP_AUTH_USER)
) {
$PHP_AUTH_USER = '';
// -> delete user's choices that were stored in session
session_destroy();
}
// Returns whether we get authentication settings or not
if (empty($PHP_AUTH_USER)) {
return false;
} else {
return true;
}
}
/**
* Set the user and password after last checkings if required
*
* @global array the valid servers settings
* @global integer the id of the current server
* @global array the current server settings
* @global string the current username
* @global string the current password
*
* @return boolean always true
*/
public function authSetUser()
{
global $cfg, $server;
global $PHP_AUTH_USER, $PHP_AUTH_PW;
// Ensures valid authentication mode, 'only_db', bookmark database and
// table names and relation table name are used
if ($cfg['Server']['user'] != $PHP_AUTH_USER) {
$servers_cnt = count($cfg['Servers']);
for ($i = 1; $i <= $servers_cnt; $i++) {
if (isset($cfg['Servers'][$i])
&& ($cfg['Servers'][$i]['host'] == $cfg['Server']['host']
&& $cfg['Servers'][$i]['user'] == $PHP_AUTH_USER)
) {
$server = $i;
$cfg['Server'] = $cfg['Servers'][$i];
break;
}
} // end for
} // end if
$cfg['Server']['user'] = $PHP_AUTH_USER;
$cfg['Server']['password'] = $PHP_AUTH_PW;
// Avoid showing the password in phpinfo()'s output
unset($GLOBALS['PHP_AUTH_PW']);
unset($_SERVER['PHP_AUTH_PW']);
return true;
}
/**
* User is not allowed to login to MySQL -> authentication failed
*
* @return boolean always true (no return indeed)
*/
public function authFails()
{
$error = PMA_DBI_getError();
if ($error && $GLOBALS['errno'] != 1045) {
PMA_fatalError($error);
} else {
$this->auth();
return true;
}
}
/**
* This method is called when any PluginManager to which the observer
* is attached calls PluginManager::notify()
*
* @param SplSubject $subject The PluginManager notifying the observer
* of an update.
*
* @return void
*/
public function update (SplSubject $subject)
{
}
}
|