Viewing file:  AuthenticationSignon.class.php (8.68 KB) -rw-r--r--
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* SignOn Authentication plugin for phpMyAdmin
*
* @package PhpMyAdmin-Authentication
* @subpackage SignOn
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/* Get the authentication interface */
require_once 'libraries/plugins/AuthenticationPlugin.class.php';
/**
* Handles the SignOn authentication method
*
* @package PhpMyAdmin-Authentication
*/
class AuthenticationSignon 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()
{
unset($_SESSION['LAST_SIGNON_URL']);
if (empty($GLOBALS['cfg']['Server']['SignonURL'])) {
PMA_fatalError('You must set SignonURL!');
} elseif (! empty($_REQUEST['old_usr'])
&& ! empty($GLOBALS['cfg']['Server']['LogoutURL'])
) {
/* Perform logout to custom URL */
PMA_sendHeaderLocation($GLOBALS['cfg']['Server']['LogoutURL']);
} else {
PMA_sendHeaderLocation($GLOBALS['cfg']['Server']['SignonURL']);
}
if (! defined('TESTSUITE')) {
exit();
} else {
return false;
}
}
/**
* Gets advanced authentication settings
*
* @global string $PHP_AUTH_USER the username if register_globals is on
* @global string $PHP_AUTH_PW 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;
/* Check if we're using same signon server */
$signon_url = $GLOBALS['cfg']['Server']['SignonURL'];
if (isset($_SESSION['LAST_SIGNON_URL'])
&& $_SESSION['LAST_SIGNON_URL'] != $signon_url
) {
return false;
}
/* Script name */
$script_name = $GLOBALS['cfg']['Server']['SignonScript'];
/* Session name */
$session_name = $GLOBALS['cfg']['Server']['SignonSession'];
/* Login URL */
$signon_url = $GLOBALS['cfg']['Server']['SignonURL'];
/* Current host */
$single_signon_host = $GLOBALS['cfg']['Server']['host'];
/* Current port */
$single_signon_port = $GLOBALS['cfg']['Server']['port'];
/* No configuration updates */
$single_signon_cfgupdate = array();
/* Are we requested to do logout? */
$do_logout = !empty($_REQUEST['old_usr']);
/* Handle script based auth */
if (!empty($script_name)) {
if (! file_exists($script_name)) {
PMA_fatalError(
__('Can not find signon authentication script:')
. ' ' . $script_name
);
}
include $script_name;
list ($PHP_AUTH_USER, $PHP_AUTH_PW)
= get_login_credentials($GLOBALS['cfg']['Server']['user']);
} elseif (isset($_COOKIE[$session_name])) { /* Does session exist? */
/* End current session */
$old_session = session_name();
$old_id = session_id();
if (! defined('TESTSUITE')) {
session_write_close();
}
/* Load single signon session */
session_name($session_name);
session_id($_COOKIE[$session_name]);
if (! defined('TESTSUITE')) {
session_start();
}
/* Clear error message */
unset($_SESSION['PMA_single_signon_error_message']);
/* Grab credentials if they exist */
if (isset($_SESSION['PMA_single_signon_user'])) {
if ($do_logout) {
$PHP_AUTH_USER = '';
} else {
$PHP_AUTH_USER = $_SESSION['PMA_single_signon_user'];
}
}
if (isset($_SESSION['PMA_single_signon_password'])) {
if ($do_logout) {
$PHP_AUTH_PW = '';
} else {
$PHP_AUTH_PW = $_SESSION['PMA_single_signon_password'];
}
}
if (isset($_SESSION['PMA_single_signon_host'])) {
$single_signon_host = $_SESSION['PMA_single_signon_host'];
}
if (isset($_SESSION['PMA_single_signon_port'])) {
$single_signon_port = $_SESSION['PMA_single_signon_port'];
}
if (isset($_SESSION['PMA_single_signon_cfgupdate'])) {
$single_signon_cfgupdate = $_SESSION['PMA_single_signon_cfgupdate'];
}
/* Also get token as it is needed to access subpages */
if (isset($_SESSION['PMA_single_signon_token'])) {
/* No need to care about token on logout */
$pma_token = $_SESSION['PMA_single_signon_token'];
}
/* End single signon session */
if (! defined('TESTSUITE')) {
session_write_close();
}
/* Restart phpMyAdmin session */
session_name($old_session);
if (!empty($old_id)) {
session_id($old_id);
}
if (! defined('TESTSUITE')) {
session_start();
}
/* Set the single signon host */
$GLOBALS['cfg']['Server']['host'] = $single_signon_host;
/* Set the single signon port */
$GLOBALS['cfg']['Server']['port'] = $single_signon_port;
/* Configuration update */
$GLOBALS['cfg']['Server'] = array_merge(
$GLOBALS['cfg']['Server'],
$single_signon_cfgupdate
);
/* Restore our token */
if (!empty($pma_token)) {
$_SESSION[' PMA_token '] = $pma_token;
}
/**
* Clear user cache.
*/
PMA_Util::clearUserCache();
}
// Returns whether we get authentication settings or not
if (empty($PHP_AUTH_USER)) {
unset($_SESSION['LAST_SIGNON_URL']);
return false;
} else {
$_SESSION['LAST_SIGNON_URL'] = $GLOBALS['cfg']['Server']['SignonURL'];
return true;
}
}
/**
* Set the user and password after last checkings if required
*
* @global array $cfg the valid servers settings
* @global integer the id of the current server
* @global array the current server settings
* @global string $PHP_AUTH_USER the current username
* @global string $PHP_AUTH_PW the current password
*
* @return boolean always true
*/
public function authSetUser()
{
global $cfg;
global $PHP_AUTH_USER, $PHP_AUTH_PW;
$cfg['Server']['user'] = $PHP_AUTH_USER;
$cfg['Server']['password'] = $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()
{
/* Session name */
$session_name = $GLOBALS['cfg']['Server']['SignonSession'];
/* Does session exist? */
if (isset($_COOKIE[$session_name])) {
/* End current session */
if (! defined('TESTSUITE')) {
session_write_close();
}
/* Load single signon session */
session_name($session_name);
session_id($_COOKIE[$session_name]);
if (! defined('TESTSUITE')) {
session_start();
}
/* Set error message */
$_SESSION['PMA_single_signon_error_message'] = $this->getErrorMessage();
}
$this->auth();
}
}
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