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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Set of functions used to run single signon authentication.
*
* @version $Id$
*/
/**
* 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)
*
* @access public
*/
function PMA_auth() {
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']);
}
exit();
} // end of the 'PMA_auth()' function
/**
* 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
*
* @access public
*/
function PMA_auth_check()
{
global $PHP_AUTH_USER, $PHP_AUTH_PW;
/* Session name */
$session_name = $GLOBALS['cfg']['Server']['SignonSession'];
/* Current host */
$single_signon_host = $GLOBALS['cfg']['Server']['host'];
/* Are we requested to do logout? */
$do_logout = !empty($_REQUEST['old_usr']);
/* Does session exist? */
if (isset($_COOKIE[$session_name])) {
/* End current session */
$old_session = session_name();
$old_id = session_id();
session_write_close();
/* Load single signon session */
session_name($session_name);
session_id($_COOKIE[$session_name]);
session_start();
/* 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 = $_SESSION['PMA_single_signon_host'];
}
/* Also get token as it is needed to access subpages */
if (isset($_SESSION['PMA_single_signon_token'])) {
/* No need to care about token on logout */
$pma_token = $_SESSION['PMA_single_signon_token'];
}
/* End single signon session */
session_write_close();
/* Restart phpMyAdmin session */
session_name($old_session);
if (!empty($old_id)) {
session_id($old_id);
}
session_start();
/* Set the single signon host */
$GLOBALS['cfg']['Server']['host']=$single_signon_host;
/* Restore our token */
if (!empty($pma_token)) {
$_SESSION[' PMA_token '] = $pma_token;
}
}
// Returns whether we get authentication settings or not
if (empty($PHP_AUTH_USER)) {
return false;
} else {
return true;
}
} // end of the 'PMA_auth_check()' function
/**
* 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
*
* @access public
*/
function PMA_auth_set_user()
{
global $cfg;
global $PHP_AUTH_USER, $PHP_AUTH_PW;
$cfg['Server']['user'] = $PHP_AUTH_USER;
$cfg['Server']['password'] = $PHP_AUTH_PW;
return true;
} // end of the 'PMA_auth_set_user()' function
/**
* User is not allowed to login to MySQL -> authentication failed
*
* @return boolean always true (no return indeed)
*
* @access public
*/
function PMA_auth_fails()
{
$error = PMA_DBI_getError();
if ($error && $GLOBALS['errno'] != 1045) {
PMA_fatalError($error);
} else {
PMA_auth();
return true;
}
} // end of the 'PMA_auth_fails()' function
?>
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