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oop: AuthenticationCookie

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This commit is contained in:
Alex Marin 2012-06-22 10:10:05 +03:00
parent aad914f7b8
commit c91e80b6ca
3 changed files with 675 additions and 62 deletions
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54
libraries/blowfish.php
View File

@ -478,59 +478,5 @@ class Horde_Cipher_blowfish
return pack("NN", $R ^ $this->p[0], $L);
}
}
// higher-level functions:
/**
* Encryption using blowfish algorithm
*
* @param string $data original data
* @param string $secret the secret
*
* @return string the encrypted result
*
* @access public
*
*/
function PMA_blowfish_encrypt($data, $secret)
{
$pma_cipher = new Horde_Cipher_blowfish;
$encrypt = '';
$mod = strlen($data) % 8;
if ($mod > 0) {
$data .= str_repeat("\0", 8 - $mod);
}
foreach (str_split($data, 8) as $chunk) {
$encrypt .= $pma_cipher->encryptBlock($chunk, $secret);
}
return base64_encode($encrypt);
}
/**
* Decryption using blowfish algorithm
*
* @param string $encdata encrypted data
* @param string $secret the secret
*
* @return string original data
*
* @access public
*
*/
function PMA_blowfish_decrypt($encdata, $secret)
{
$pma_cipher = new Horde_Cipher_blowfish;
$decrypt = '';
$data = base64_decode($encdata);
foreach (str_split($data, 8) as $chunk) {
$decrypt .= $pma_cipher->decryptBlock($chunk, $secret);
}
return trim($decrypt);
}
?>

616
libraries/plugins/auth/AuthenticationCookie.class.php
View File

@ -13,6 +13,19 @@ if (! defined('PHPMYADMIN')) {
/* Get the authentication interface */
require_once "libraries/plugins/AuthenticationPlugin.class.php";
/**
* Remember where to redirect the user
* in case of an expired session.
*/
if (! empty($_REQUEST['target'])) {
$GLOBALS['target'] = $_REQUEST['target'];
}
/**
* Swekey authentication functions.
*/
require './libraries/plugins/auth/swekey/swekey.auth.lib.php';
/**
* Handles the cookie authentication method
*
@ -21,57 +34,618 @@ require_once "libraries/plugins/AuthenticationPlugin.class.php";
class AuthenticationCookie extends AuthenticationPlugin
{
/**
* Initialization vector
*
* @var array
*/
private $_iv;
/**
* Constructor
*/
function __construct() {
/**
* Initialization
* Store the initialization vector because it will be needed for
* further decryption. I don't think necessary to have one iv
* per server so I don't put the server number in the cookie name.
*/
if (empty($_COOKIE['pma_mcrypt_iv'])
|| false === ($this->_setIv(base64_decode($_COOKIE['pma_mcrypt_iv'], true)))
) {
srand((double) microtime() * 1000000);
$td = mcrypt_module_open(MCRYPT_BLOWFISH, '', MCRYPT_MODE_CBC, '');
if ($td === false) {
PMA_fatalError(__('Failed to use Blowfish from mcrypt!'));
}
$this->_setIv(mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND));
$GLOBALS['PMA_Config']->setCookie('pma_mcrypt_iv', base64_encode($this->_getIv()));
}
}
/**
* Displays authentication form
*
* this function MUST exit/quit the application
*
* @global string the last connection error
*
* @return void
*/
public function auth()
{
global $conn_error;
$response = PMA_Response::getInstance();
if ($response->isAjax()) {
$response->isSuccess(false);
if (! empty($conn_error)) {
$response->addJSON('message', $conn_error);
} else {
$response->addJSON('message', PMA_Message::error(__('Your session has expired. Please login again.')));
}
exit;
}
/* Perform logout to custom URL */
if (! empty($_REQUEST['old_usr'])
&& ! empty($GLOBALS['cfg']['Server']['LogoutURL'])
) {
PMA_sendHeaderLocation($GLOBALS['cfg']['Server']['LogoutURL']);
exit;
}
/* No recall if blowfish secret is not configured as it would produce garbage */
if ($GLOBALS['cfg']['LoginCookieRecall']
&& ! empty($GLOBALS['cfg']['blowfish_secret'])
) {
$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';
$response->getFooter()->setMinimal();
$header = $response->getHeader();
$header->setBodyId('loginform');
$header->setTitle('phpMyAdmin');
$header->disableMenu();
$header->disableWarnings();
if (file_exists(CUSTOM_HEADER_FILE)) {
include CUSTOM_HEADER_FILE;
}
?>
<div class="container">
<a href="<?php echo PMA_linkURL('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="'
. $GLOBALS['pmaThemeImage'] . 'pma_logo.png' . '" '
. 'border="0" width="88" height="31" alt="phpMyAdmin" />';
}
?></a>
<h1>
<?php
echo sprintf(
__('Welcome to %s'),
'<bdo dir="ltr" lang="en">phpMyAdmin</bdo>'
);
?>
</h1>
<?php
// Show error message
if (! empty($conn_error)) {
PMA_Message::rawError($conn_error)->display();
}
echo "<noscript>\n";
PMA_message::error(__("Javascript must be enabled past this point"))->display();
echo "</noscript>\n";
echo "<div class='hide js-show'>";
// Displays the languages form
if (empty($GLOBALS['cfg']['Lang'])) {
include_once './libraries/display_select_lang.lib.php';
// use fieldset, don't show doc link
PMA_select_language(true, false);
}
echo "</div>";
?>
<br />
<!-- Login form -->
<form method="post" action="index.php" name="login_form"<?php echo $autocomplete; ?> target="_top" class="login hide js-show">
<fieldset>
<legend>
<?php
echo __('Log in');
echo PMA_showDocu('');
?>
</legend>
<?php if ($GLOBALS['cfg']['AllowArbitraryServer']) { ?>
<div class="item">
<label for="input_servername" title="<?php echo __('You can enter hostname/IP address and port separated by space.'); ?>"><?php echo __('Server:'); ?></label>
<input type="text" name="pma_servername" id="input_servername" value="<?php echo htmlspecialchars($default_server); ?>" size="24" class="textfield" title="<?php echo __('You can enter hostname/IP address and port separated by space.'); ?>" />
</div>
<?php } ?>
<div class="item">
<label for="input_username"><?php echo __('Username:'); ?></label>
<input type="text" name="pma_username" id="input_username" value="<?php echo htmlspecialchars($default_user); ?>" size="24" class="textfield"/>
</div>
<div class="item">
<label for="input_password"><?php echo __('Password:'); ?></label>
<input type="password" name="pma_password" id="input_password" value="" size="24" class="textfield" />
</div>
<?php
if (count($GLOBALS['cfg']['Servers']) > 1) {
?>
<div class="item">
<label for="select_server"><?php echo __('Server Choice'); ?>:</label>
<select name="server" id="select_server"
<?php
if ($GLOBALS['cfg']['AllowArbitraryServer']) {
echo ' onchange="document.forms[\'login_form\'].elements[\'pma_servername\'].value = \'\'" ';
}
echo '>';
include_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 __('Go'); ?>" type="submit" id="input_go" />
<?php
$_form_params = array();
if (! empty($GLOBALS['target'])) {
$_form_params['target'] = $GLOBALS['target'];
}
if (! empty($GLOBALS['db'])) {
$_form_params['db'] = $GLOBALS['db'];
}
if (! empty($GLOBALS['table'])) {
$_form_params['table'] = $GLOBALS['table'];
}
// do not generate a "server" hidden field as we want the "server"
// drop-down to have priority
echo PMA_generate_common_hidden_inputs($_form_params, '', 0, 'server');
?>
</fieldset>
</form>
<?php
// BEGIN Swekey Integration
Swekey_login('input_username', 'input_go');
// END Swekey Integration
// show the "Cookies required" message only if cookies are disabled
// (we previously tried to set some cookies)
if (empty($_COOKIE)) {
trigger_error(__('Cookies must be enabled past this point.'), E_USER_NOTICE);
}
if ($GLOBALS['error_handler']->hasDisplayErrors()) {
echo '<div>';
$GLOBALS['error_handler']->dispErrors();
echo '</div>';
}
?>
</div>
<?php
if (file_exists(CUSTOM_FOOTER_FILE)) {
include CUSTOM_FOOTER_FILE;
}
?>
<script type="text/javascript">
//<![CDATA[
// show login form in top frame.
if (top != self || ! $('body#loginform').length) {
window.top.location.href=location;
}
//]]>
</script>
<?php
exit;
}
/**
* Gets advanced authentication settings
*
* this function DOES NOT check authentication - it just checks/provides
* authentication credentials required to connect to the MySQL server
* usually with PMA_DBI_connect()
*
* @return void
* it returns false if something is missing - which usually leads to
* PMA_auth() which displays login form
*
* it returns true if all seems ok which usually 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 wants an
* arbitrary server, or? so we should also check if this is filled and
* not only if allowed
*
* @return boolean whether we get authentication settings or not
*/
public function authCheck()
{
// 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'] = '';
$GLOBALS['from_cookie'] = false;
// BEGIN Swekey Integration
if (! Swekey_auth_check()) {
return false;
}
// END Swekey Integration
if (defined('PMA_CLEAR_COOKIES')) {
foreach ($GLOBALS['cfg']['Servers'] as $key => $val) {
$GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $key);
$GLOBALS['PMA_Config']->removeCookie('pmaServer-' . $key);
$GLOBALS['PMA_Config']->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
// according to the PHP manual we should do this before the destroy:
//$_SESSION = array();
session_destroy();
// -> delete password cookie(s)
if ($GLOBALS['cfg']['LoginCookieDeleteAll']) {
foreach ($GLOBALS['cfg']['Servers'] as $key => $val) {
$GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $key);
if (isset($_COOKIE['pmaPass-' . $key])) {
unset($_COOKIE['pmaPass-' . $key]);
}
}
} else {
$GLOBALS['PMA_Config']->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-' . $GLOBALS['server']],
PMA_get_blowfish_secret()
);
// user was never logged in since session start
if (empty($_SESSION['last_access_time'])) {
return false;
}
// User inactive too long
if ($_SESSION['last_access_time'] < time() - $GLOBALS['cfg']['LoginCookieValidity']) {
PMA_cacheUnset('is_create_db_priv', true);
PMA_cacheUnset('is_process_priv', true);
PMA_cacheUnset('is_reload_priv', true);
PMA_cacheUnset('db_to_create', true);
PMA_cacheUnset('dbs_where_create_table_allowed', true);
$GLOBALS['no_activity'] = true;
PMA_auth_fails();
exit;
}
// password
if (empty($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
return false;
}
$GLOBALS['PHP_AUTH_PW'] = PMA_blowfish_decrypt(
$_COOKIE['pmaPass-' . $GLOBALS['server']],
PMA_get_blowfish_secret()
);
if ($GLOBALS['PHP_AUTH_PW'] == "\xff(blank)") {
$GLOBALS['PHP_AUTH_PW'] = '';
}
$GLOBALS['from_cookie'] = true;
return true;
}
/**
* Set the user and password after last checkings if required
*
*
* @return void
* @return boolean always true
*/
public function authSetUser()
{
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'] = $current;
break;
}
} // end foreach
} // end if
if ($GLOBALS['cfg']['AllowArbitraryServer']
&& ! empty($GLOBALS['pma_auth_server'])
) {
/* Allow to specify 'host port' */
$parts = explode(' ', $GLOBALS['pma_auth_server']);
if (count($parts) == 2) {
$tmp_host = $parts[0];
$tmp_port = $parts[1];
} else {
$tmp_host = $GLOBALS['pma_auth_server'];
$tmp_port = '';
}
if ($cfg['Server']['host'] != $GLOBALS['pma_auth_server']) {
$cfg['Server']['host'] = $tmp_host;
if (! empty($tmp_port)) {
$cfg['Server']['port'] = $tmp_port;
}
}
unset($tmp_host, $tmp_port, $parts);
}
$cfg['Server']['user'] = $GLOBALS['PHP_AUTH_USER'];
$cfg['Server']['password'] = $GLOBALS['PHP_AUTH_PW'];
// Avoid showing the password in phpinfo()'s output
unset($GLOBALS['PHP_AUTH_PW']);
unset($_SERVER['PHP_AUTH_PW']);
$_SESSION['last_access_time'] = time();
// Name and password cookies need to be refreshed each time
// Duration = one month for username
$GLOBALS['PMA_Config']->setCookie(
'pmaUser-' . $GLOBALS['server'],
PMA_blowfish_encrypt(
$cfg['Server']['user'], PMA_get_blowfish_secret()
)
);
// Duration = as configured
$GLOBALS['PMA_Config']->setCookie(
'pmaPass-' . $GLOBALS['server'],
PMA_blowfish_encrypt(
! empty($cfg['Server']['password']) ? $cfg['Server']['password'] : "\xff(blank)",
PMA_get_blowfish_secret()
),
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 servername
$GLOBALS['PMA_Config']->setCookie(
'pmaServer-' . $GLOBALS['server'],
$cfg['Server']['host']
);
} else {
// Delete servername cookie
$GLOBALS['PMA_Config']->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'] = $GLOBALS['table'];
}
// any target to pass?
if (! empty($GLOBALS['target']) && $GLOBALS['target'] != 'index.php') {
$url_params['target'] = $GLOBALS['target'];
}
/**
* Clear user cache.
*/
PMA_clearUserCache();
PMA_Response::getInstance()->disable();
PMA_sendHeaderLocation(
$redirect_url . PMA_generate_common_url($url_params, '&'),
true
);
exit;
} // end if
return true;
}
/**
* 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()
*
* @return void
*/
public function authFails()
{
global $conn_error;
// Deletes password cookie and displays the login form
$GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $GLOBALS['server']);
if (! empty($GLOBALS['login_without_password_is_forbidden'])) {
$conn_error = __('Login without a password is forbidden by configuration (see AllowNoPassword)');
} elseif (! empty($GLOBALS['allowDeny_forbidden'])) {
$conn_error = __('Access denied');
} elseif (! empty($GLOBALS['no_activity'])) {
$conn_error = sprintf(__('No activity within %s seconds; please log in again'), $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 = '#' . $GLOBALS['errno'] . ' '
. __('Cannot log in to the MySQL server');
} else {
$conn_error = __('Cannot log in to the MySQL server');
}
// needed for PHP-CGI (not need for FastCGI or mod-php)
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Pragma: no-cache');
PMA_auth();
}
/**
* Returns blowfish secret or generates one if needed.
*
*
* @return void
* @return string
*/
private function blowfishEncrypt()
public function getBlowfishSecret ()
{
if (empty($GLOBALS['cfg']['blowfish_secret'])) {
if (empty($_SESSION['auto_blowfish_secret'])) {
// this returns 23 characters
$_SESSION['auto_blowfish_secret'] = uniqid('', true);
}
return $_SESSION['auto_blowfish_secret'];
} else {
// apply md5() to work around too long secrets (returns 32 characters)
return md5($GLOBALS['cfg']['blowfish_secret']);
}
}
/**
* Encryption using blowfish algorithm (mcrypt)
*
* @param string $data original data
* @param string $secret the secret
*
* @return void
* @return string the encrypted result
*/
private function blowfishDecrypt()
public function blowfishEncrypt($data, $secret)
{
if (! function_exists('mcrypt_encrypt')) {
include_once("HordeCipherBlowfishOperations.class.php");
return HordeCipherBlowfishOperations::blowfishEncrypt($data, $secret);
}
return base64_encode(
mcrypt_encrypt(MCRYPT_BLOWFISH, $secret, $data, MCRYPT_MODE_CBC, $this->_getIv())
);
}
/**
* Decryption using blowfish algorithm (mcrypt)
*
* @param string $encdata encrypted data
* @param string $secret the secret
*
* @return string original data
*/
public function blowfishDecrypt($encdata, $secret)
{
if (! function_exists('mcrypt_encrypt')) {
include_once("HordeCipherBlowfishOperations.class.php");
return HordeCipherBlowfishOperations::blowfishDecrypt(
$encdata,
$secret
);
}
$data = base64_decode($encdata);
$decrypted = mcrypt_decrypt(
MCRYPT_BLOWFISH,
$secret,
$data,
MCRYPT_MODE_CBC,
$this->_getIv()
);
return trim($decrypted);
}
/**
@ -86,4 +660,30 @@ class AuthenticationCookie extends AuthenticationPlugin
public function update (SplSubject $subject)
{
}
/* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */
/**
* Get the initialization vector
*
* @return array
*/
private function _getIv()
{
return $this->_iv;
}
/**
* Set the initialization vector
*
* @param array $iv the initialization vector
*
* @return void
*/
private function _setIv($iv)
{
$this->_iv = $iv;
}
}

67
libraries/plugins/auth/HordeCipherBlowfishOperations.class.php Normal file
View File

@ -0,0 +1,67 @@
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Auxiliary functions for cookie authentication
*
* @package PhpMyAdmin-Auth
* @subpackage Cookie
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/* Get the Horde_Cipher_blowfish class */
require_once './libraries/blowfish.php';
/**
* The HordeCipherBlowfishOperations provides encrypt and decrypt functions
* using the Horde_Cipher_blowfish class
*/
class HordeCipherBlowfishOperations
{
/**
* Encryption using blowfish algorithm
*
* @param string $data original data
* @param string $secret the secret
*
* @return string the encrypted result
*/
public static function blowfishEncrypt($data, $secret)
{
$pma_cipher = new Horde_Cipher_blowfish;
$encrypt = '';
$mod = strlen($data) % 8;
if ($mod > 0) {
$data .= str_repeat("\0", 8 - $mod);
}
foreach (str_split($data, 8) as $chunk) {
$encrypt .= $pma_cipher->encryptBlock($chunk, $secret);
}
return base64_encode($encrypt);
}
/**
* Decryption using blowfish algorithm
*
* @param string $encdata encrypted data
* @param string $secret the secret
*
* @return string original data
*/
public static function blowfishDecrypt($encdata, $secret)
{
$pma_cipher = new Horde_Cipher_blowfish;
$decrypt = '';
$data = base64_decode($encdata);
foreach (str_split($data, 8) as $chunk) {
$decrypt .= $pma_cipher->decryptBlock($chunk, $secret);
}
return trim($decrypt);
}
}
?>