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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Set of functions used to run cookie based authentication.
* Thanks to Piotr Roszatycki <d3xter at users.sourceforge.net> and
* Dan Wilson who built this patch for the Debian package.
*
* @version $Id: cookie.auth.lib.php 11009 2007-12-18 18:13:24Z lem9 $
*/
/**
* @todo replace by constant
* $coming_from_common can be set from outside with register_globals on
*/
if (!isset($coming_from_common)) {
exit;
}
if (function_exists('mcrypt_encrypt') || PMA_dl('mcrypt')) {
/**
* Uses faster mcrypt library if available
*/
require_once './libraries/mcrypt.lib.php';
} else {
require_once './libraries/blowfish.php';
/**
* display warning in main.php
*/
define('PMA_WARN_FOR_MCRYPT', 1);
}
/**
* Displays authentication form
*
* this function MUST exit/quit the application
*
* @uses $GLOBALS['server']
* @uses $GLOBALS['PHP_AUTH_USER']
* @uses $GLOBALS['pma_auth_server']
* @uses $GLOBALS['text_dir']
* @uses $GLOBALS['pmaThemeImage']
* @uses $GLOBALS['charset']
* @uses $GLOBALS['target']
* @uses $GLOBALS['db']
* @uses $GLOBALS['table']
* @uses $GLOBALS['PMA_errors']
* @uses $GLOBALS['convcharset']
* @uses $GLOBALS['lang']
* @uses $GLOBALS['strWelcome']
* @uses $GLOBALS['strSecretRequired']
* @uses $GLOBALS['strError']
* @uses $GLOBALS['strLogin']
* @uses $GLOBALS['strLogServer']
* @uses $GLOBALS['strLogUsername']
* @uses $GLOBALS['strLogPassword']
* @uses $GLOBALS['strServerChoice']
* @uses $GLOBALS['strGo']
* @uses $GLOBALS['strCookiesRequired']
* @uses $GLOBALS['strPmaDocumentation']
* @uses $GLOBALS['pmaThemeImage']
* @uses $cfg['Servers']
* @uses $cfg['LoginCookieRecall']
* @uses $cfg['Lang']
* @uses $cfg['Server']
* @uses $cfg['ReplaceHelpImg']
* @uses $cfg['blowfish_secret']
* @uses $cfg['AllowArbitraryServer']
* @uses $_COOKIE
* @uses $_REQUEST['old_usr']
* @uses PMA_sendHeaderLocation()
* @uses PMA_select_language()
* @uses PMA_select_server()
* @uses PMA_VERSION
* @uses file_exists()
* @uses sprintf()
* @uses count()
* @uses htmlspecialchars()
* @uses is_array()
* @global string the last connection error
*
* @access public
*/
function PMA_auth()
{
global $conn_error;
/* Perform logout to custom URL */
if (! empty($_REQUEST['old_usr'])
&& ! empty($GLOBALS['cfg']['Server']['LogoutURL'])) {
PMA_sendHeaderLocation($GLOBALS['cfg']['Server']['LogoutURL']);
exit;
}
if ($GLOBALS['cfg']['LoginCookieRecall']) {
$default_user = $GLOBALS['PHP_AUTH_USER'];
$default_server = $GLOBALS['pma_auth_server'];
$autocomplete = '';
} else {
$default_user = '';
$default_server = '';
// skip the IE autocomplete feature.
$autocomplete = ' autocomplete="off"';
}
$cell_align = ($GLOBALS['text_dir'] == 'ltr') ? 'left' : 'right';
// Defines the charset to be used
header('Content-Type: text/html; charset=' . $GLOBALS['charset']);
// Defines the "item" image depending on text direction
$item_img = $GLOBALS['pmaThemeImage'] . 'item_' . $GLOBALS['text_dir'] . '.png';
/* HTML header */
$page_title = 'phpMyAdmin ' . PMA_VERSION;
require './libraries/header_meta_style.inc.php';
?>
<script type="text/javascript">
//<![CDATA[
// show login form in top frame
if (top != self) {
window.top.location.href=location;
}
//]]>
</script>
</head>
<body class="loginform">
<?php
if (file_exists('./config.header.inc.php')) {
require './config.header.inc.php';
}
?>
<div class="container">
<a href="http://www.phpmyadmin.net" target="_blank" class="logo"><?php
$logo_image = $GLOBALS['pmaThemeImage'] . 'logo_right.png';
if (@file_exists($logo_image)) {
echo '<img src="' . $logo_image . '" id="imLogo" name="imLogo" alt="phpMyAdmin" border="0" />';
} else {
echo '<img name="imLogo" id="imLogo" src="' . $GLOBALS['pmaThemeImage'] . 'pma_logo.png' . '" '
. 'border="0" width="88" height="31" alt="phpMyAdmin" />';
}
?></a>
<h1>
<?php
echo sprintf($GLOBALS['strWelcome'],
'<bdo dir="ltr" xml:lang="en">' . $page_title . '</bdo>');
?>
</h1>
<?php
// Show error message
if (! empty($conn_error)) {
echo '<div class="error"><h1>' . $GLOBALS['strError'] . '</h1>' . "\n";
echo $conn_error . '</div>' . "\n";
}
// Displays the languages form
if (empty($GLOBALS['cfg']['Lang'])) {
require_once './libraries/display_select_lang.lib.php';
PMA_select_language(true);
}
// Displays the warning message and the login form
if (empty($GLOBALS['cfg']['blowfish_secret'])) {
?>
<div class="error"><h1><?php echo $GLOBALS['strError']; ?></h1>
<?php echo $GLOBALS['strSecretRequired']; ?>
</div>
<?php
echo '</div>' . "\n";
if (file_exists('./config.footer.inc.php')) {
require './config.footer.inc.php';
}
echo '</body></html>';
exit;
}
?>
<br />
<!-- Login form -->
<form method="post" action="index.php" name="login_form"<?php echo $autocomplete; ?> target="_top" class="login">
<fieldset>
<legend>
<?php
echo $GLOBALS['strLogin'];
echo '<a href="./Documentation.html" target="documentation" ' .
'title="' . $GLOBALS['strPmaDocumentation'] . '">';
if ($GLOBALS['cfg']['ReplaceHelpImg']) {
echo '<img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_help.png" width="11" height="11" alt="' . $GLOBALS['strPmaDocumentation'] . '" />';
} else {
echo '(*)';
}
echo '</a>';
?>
</legend>
<?php if ($GLOBALS['cfg']['AllowArbitraryServer']) { ?>
<div class="item">
<label for="input_servername"><?php echo $GLOBALS['strLogServer']; ?></label>
<input type="text" name="pma_servername" id="input_servername" value="<?php echo htmlspecialchars($default_server); ?>" size="24" class="textfield" />
</div>
<?php } ?>
<div class="item">
<label for="input_username"><?php echo $GLOBALS['strLogUsername']; ?></label>
<input type="text" name="pma_username" id="input_username" value="<?php echo htmlspecialchars($default_user); ?>" size="24" class="textfield" />
</div>
<div class="item">
<label for="input_password"><?php echo $GLOBALS['strLogPassword']; ?></label>
<input type="password" name="pma_password" id="input_password" value="" size="24" class="textfield" />
</div>
<?php
if (count($GLOBALS['cfg']['Servers']) > 1) {
?>
<div class="item">
<label for="select_server"><?php echo $GLOBALS['strServerChoice']; ?>:</label>
<select name="server" id="select_server"
<?php
if ($GLOBALS['cfg']['AllowArbitraryServer']) {
echo ' onchange="document.forms[\'login_form\'].elements[\'pma_servername\'].value = \'\'" ';
}
echo '>';
require_once './libraries/select_server.lib.php';
PMA_select_server(false, false);
echo '</select></div>';
} else {
echo ' <input type="hidden" name="server" value="' . $GLOBALS['server'] . '" />';
} // end if (server choice)
?>
</fieldset>
<fieldset class="tblFooters">
<input value="<?php echo $GLOBALS['strGo']; ?>" type="submit" />
<input type="hidden" name="lang" value="<?php echo $GLOBALS['lang']; ?>" />
<input type="hidden" name="convcharset" value="<?php echo htmlspecialchars($GLOBALS['convcharset'], ENT_QUOTES); ?>" />
<?php
if (!empty($GLOBALS['target'])) {
echo ' <input type="hidden" name="target" value="' . htmlspecialchars($GLOBALS['target']) . '" />' . "\n";
}
if (!empty($GLOBALS['db'])) {
echo ' <input type="hidden" name="db" value="' . htmlspecialchars($GLOBALS['db']) . '" />' . "\n";
}
if (!empty($GLOBALS['table'])) {
echo ' <input type="hidden" name="table" value="' . htmlspecialchars($GLOBALS['table']) . '" />' . "\n";
}
?>
</fieldset>
</form>
<?php
// show the "Cookies required" message only if cookies are disabled
// (we previously tried to set some cookies)
if (empty($_COOKIE)) {
echo '<div class="notice">' . $GLOBALS['strCookiesRequired'] . '</div>' . "\n";
}
if (! empty($GLOBALS['PMA_errors']) && is_array($GLOBALS['PMA_errors'])) {
foreach ($GLOBALS['PMA_errors'] as $error) {
echo '<div class="error">' . $error . '</div>' . "\n";
}
}
?>
</div>
<script type="text/javascript">
// <![CDATA[
function PMA_focusInput()
{
var input_username = document.getElementById('input_username');
var input_password = document.getElementById('input_password');
if (input_username.value == '') {
input_username.focus();
} else {
input_password.focus();
}
}
window.setTimeout('PMA_focusInput()', 500);
// ]]>
</script>
</body>
</html>
<?php
if (file_exists('./config.footer.inc.php')) {
require './config.footer.inc.php';
}
exit;
} // end of the 'PMA_auth()' function
/**
* Gets advanced authentication settings
*
* this function DOES NOT check authentication - it just checks/provides
* authentication credentials required to connect to the MySQL server
* usally with PMA_DBI_connect()
*
* it returns false if there is missing something - which usally leads to
* PMA_auth() which displays login form
*
* it returns true if all seems ok which usally leads to PMA_auth_set_user()
*
* it directly switches to PMA_auth_fails() if user inactivity timout is reached
*
* @todo AllowArbitraryServer on does not imply that the user wnats an
* arbitrary server, or? so we should also check if this is filled and
* not only if allowed
* @uses $GLOBALS['PHP_AUTH_USER']
* @uses $GLOBALS['PHP_AUTH_PW']
* @uses $GLOBALS['no_activity']
* @uses $GLOBALS['server']
* @uses $GLOBALS['from_cookie']
* @uses $GLOBALS['pma_auth_server']
* @uses $cfg['blowfish_secret']
* @uses $cfg['AllowArbitraryServer']
* @uses $cfg['LoginCookieValidity']
* @uses $cfg['Servers']
* @uses $_REQUEST['old_usr'] from logout link
* @uses $_REQUEST['pma_username'] from login form
* @uses $_REQUEST['pma_password'] from login form
* @uses $_REQUEST['pma_servername'] from login form
* @uses $_COOKIE
* @uses $_SESSION['last_access_time']
* @uses PMA_removeCookie()
* @uses PMA_blowfish_decrypt()
* @uses PMA_auth_fails()
* @uses time()
*
* @return boolean whether we get authentication settings or not
*
* @access public
*/
function PMA_auth_check()
{
// Initialization
/**
* @global $GLOBALS['pma_auth_server'] the user provided server to connect to
*/
$GLOBALS['pma_auth_server'] = '';
$GLOBALS['PHP_AUTH_USER'] = $GLOBALS['PHP_AUTH_PW'] = '';
$GLOBALS['from_cookie'] = false;
// avoid an error in mcrypt
if (empty($GLOBALS['cfg']['blowfish_secret'])) {
return false;
}
if (defined('PMA_CLEAR_COOKIES')) {
foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
PMA_removeCookie('pmaPass-' . $key);
PMA_removeCookie('pmaServer-' . $key);
PMA_removeCookie('pmaUser-' . $key);
}
return false;
}
if (! empty($_REQUEST['old_usr'])) {
// The user wants to be logged out
// -> delete his choices that were stored in session
session_destroy();
// -> delete password cookie(s)
if ($GLOBALS['cfg']['LoginCookieDeleteAll']) {
foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
PMA_removeCookie('pmaPass-' . $key);
if (isset($_COOKIE['pmaPass-' . $key])) {
unset($_COOKIE['pmaPass-' . $key]);
}
}
} else {
PMA_removeCookie('pmaPass-' . $GLOBALS['server']);
if (isset($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
unset($_COOKIE['pmaPass-' . $GLOBALS['server']]);
}
}
}
if (! empty($_REQUEST['pma_username'])) {
// The user just logged in
$GLOBALS['PHP_AUTH_USER'] = $_REQUEST['pma_username'];
$GLOBALS['PHP_AUTH_PW'] = empty($_REQUEST['pma_password']) ? '' : $_REQUEST['pma_password'];
if ($GLOBALS['cfg']['AllowArbitraryServer'] && isset($_REQUEST['pma_servername'])) {
$GLOBALS['pma_auth_server'] = $_REQUEST['pma_servername'];
}
return true;
}
// At the end, try to set the $GLOBALS['PHP_AUTH_USER']
// and $GLOBALS['PHP_AUTH_PW'] variables from cookies
// servername
if ($GLOBALS['cfg']['AllowArbitraryServer']
&& ! empty($_COOKIE['pmaServer-' . $GLOBALS['server']])) {
$GLOBALS['pma_auth_server'] = $_COOKIE['pmaServer-' . $GLOBALS['server']];
}
// username
if (empty($_COOKIE['pmaUser-' . $GLOBALS['server']])) {
return false;
}
$GLOBALS['PHP_AUTH_USER'] = PMA_blowfish_decrypt(
$_COOKIE['pmaUser-' . $GLOBALS['server']],
$GLOBALS['cfg']['blowfish_secret']);
// user was never logged in since session start
if (empty($_SESSION['last_access_time'])) {
return false;
}
// User inactive too long
if ($_SESSION['last_access_time'] < time() - $GLOBALS['cfg']['LoginCookieValidity']) {
$GLOBALS['no_activity'] = true;
PMA_auth_fails();
exit;
}
// password
if (empty($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
return false;
}
$GLOBALS['PHP_AUTH_PW'] = PMA_blowfish_decrypt(
$_COOKIE['pmaPass-' . $GLOBALS['server']],
$GLOBALS['cfg']['blowfish_secret'] /* . $_SESSION['last_access_time'] */);
if ($GLOBALS['PHP_AUTH_PW'] == "\xff(blank)") {
$GLOBALS['PHP_AUTH_PW'] = '';
}
$GLOBALS['from_cookie'] = true;
return true;
} // end of the 'PMA_auth_check()' function
/**
* Set the user and password after last checkings if required
*
* @uses $GLOBALS['PHP_AUTH_USER']
* @uses $GLOBALS['PHP_AUTH_PW']
* @uses $GLOBALS['server']
* @uses $GLOBALS['from_cookie']
* @uses $GLOBALS['pma_auth_server']
* @uses $cfg['Server']
* @uses $cfg['AllowArbitraryServer']
* @uses $cfg['blowfish_secret']
* @uses $cfg['LoginCookieStore']
* @uses $cfg['PmaAbsoluteUri']
* @uses $_SESSION['last_access_time']
* @uses PMA_COMING_FROM_COOKIE_LOGIN
* @uses PMA_setCookie()
* @uses PMA_blowfish_encrypt()
* @uses PMA_removeCookie()
* @uses PMA_sendHeaderLocation()
* @uses time()
* @uses define()
* @return boolean always true
*
* @access public
*/
function PMA_auth_set_user()
{
global $cfg;
// Ensures valid authentication mode, 'only_db', bookmark database and
// table names and relation table name are used
if ($cfg['Server']['user'] != $GLOBALS['PHP_AUTH_USER']) {
foreach ($cfg['Servers'] as $idx => $current) {
if ($current['host'] == $cfg['Server']['host']
&& $current['port'] == $cfg['Server']['port']
&& $current['socket'] == $cfg['Server']['socket']
&& $current['ssl'] == $cfg['Server']['ssl']
&& $current['connect_type'] == $cfg['Server']['connect_type']
&& $current['user'] == $GLOBALS['PHP_AUTH_USER']) {
$GLOBALS['server'] = $idx;
$cfg['Server'] = $current;
break;
}
} // end foreach
} // end if
$pma_server_changed = false;
if ($GLOBALS['cfg']['AllowArbitraryServer']
&& ! empty($GLOBALS['pma_auth_server'])
&& $cfg['Server']['host'] != $GLOBALS['pma_auth_server']) {
$cfg['Server']['host'] = $GLOBALS['pma_auth_server'];
$pma_server_changed = true;
}
$cfg['Server']['user'] = $GLOBALS['PHP_AUTH_USER'];
$cfg['Server']['password'] = $GLOBALS['PHP_AUTH_PW'];
$_SESSION['last_access_time'] = time();
// Name and password cookies needs to be refreshed each time
// Duration = one month for username
PMA_setCookie('pmaUser-' . $GLOBALS['server'],
PMA_blowfish_encrypt($cfg['Server']['user'],
$GLOBALS['cfg']['blowfish_secret']));
// Duration = as configured
PMA_setCookie('pmaPass-' . $GLOBALS['server'],
PMA_blowfish_encrypt(!empty($cfg['Server']['password']) ? $cfg['Server']['password'] : "\xff(blank)",
$GLOBALS['cfg']['blowfish_secret'] /* . $_SESSION['last_access_time'] */),
null,
$GLOBALS['cfg']['LoginCookieStore']);
// Set server cookies if required (once per session) and, in this case, force
// reload to ensure the client accepts cookies
if (! $GLOBALS['from_cookie']) {
if ($GLOBALS['cfg']['AllowArbitraryServer']) {
if (! empty($GLOBALS['pma_auth_server'])) {
// Duration = one month for serverrname
PMA_setCookie('pmaServer-' . $GLOBALS['server'], $cfg['Server']['host']);
} else {
// Delete servername cookie
PMA_removeCookie('pmaServer-' . $GLOBALS['server']);
}
}
// URL where to go:
$redirect_url = $cfg['PmaAbsoluteUri'] . 'index.php';
// any parameters to pass?
$url_params = array();
if (strlen($GLOBALS['db'])) {
$url_params['db'] = $GLOBALS['db'];
}
if (strlen($GLOBALS['table'])) {
$url_params['table'] = $GLOBALS['table'];
}
// Language change from the login panel needs to be remembered
if (! empty($GLOBALS['lang'])) {
$url_params['lang'] = $GLOBALS['lang'];
}
// any target to pass?
if (! empty($GLOBALS['target']) && $GLOBALS['target'] != 'index.php') {
$url_params['target'] = $GLOBALS['target'];
}
/**
* whether we come from a fresh cookie login
*/
define('PMA_COMING_FROM_COOKIE_LOGIN', true);
PMA_sendHeaderLocation($redirect_url . PMA_generate_common_url($url_params, '&'));
exit();
} // end if
return true;
} // end of the 'PMA_auth_set_user()' function
/**
* User is not allowed to login to MySQL -> authentication failed
*
* prepares error message and switches to PMA_auth() which display the error
* and the login form
*
* this function MUST exit/quit the application,
* currently doen by call to PMA_auth()
*
* @todo $php_errormsg is invalid here!? it will never be set in this scope
* @uses $GLOBALS['server']
* @uses $GLOBALS['allowDeny_forbidden']
* @uses $GLOBALS['strAccessDenied']
* @uses $GLOBALS['strNoActivity']
* @uses $GLOBALS['strCannotLogin']
* @uses $GLOBALS['no_activity']
* @uses $cfg['LoginCookieValidity']
* @uses PMA_removeCookie()
* @uses PMA_getenv()
* @uses PMA_DBI_getError()
* @uses PMA_sanitize()
* @uses PMA_auth()
* @uses sprintf()
* @uses basename()
* @access public
*/
function PMA_auth_fails()
{
global $conn_error;
// Deletes password cookie and displays the login form
PMA_removeCookie('pmaPass-' . $GLOBALS['server']);
if (! empty($GLOBALS['allowDeny_forbidden'])) {
$conn_error = $GLOBALS['strAccessDenied'];
} elseif (! empty($GLOBALS['no_activity'])) {
$conn_error = sprintf($GLOBALS['strNoActivity'], $GLOBALS['cfg']['LoginCookieValidity']);
// Remember where we got timeout to return on same place
if (PMA_getenv('SCRIPT_NAME')) {
$GLOBALS['target'] = basename(PMA_getenv('SCRIPT_NAME'));
// avoid "missing parameter: field" on re-entry
if ('tbl_alter.php' == $GLOBALS['target']) {
$GLOBALS['target'] = 'tbl_structure.php';
}
}
} elseif (PMA_DBI_getError()) {
$conn_error = PMA_sanitize(PMA_DBI_getError());
} elseif (isset($php_errormsg)) {
$conn_error = $php_errormsg;
} else {
$conn_error = $GLOBALS['strCannotLogin'];
}
PMA_auth();
} // end of the 'PMA_auth_fails()' function
?>
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