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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 11326 2008-06-17 21:32:48Z lem9 $
- */
-
- if (! defined('PHPMYADMIN')) {
- 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">' . $error . '</div>' . "\n";
- }
- }
- // the warning is also displayed on main page but show it also here,
- // because on some PHP versions running on 64-bit, the blowfish library
- // does not work and this would prevent login
- if (defined('PMA_WARN_FOR_MCRYPT')) {
- echo '<div class="warning">' . PMA_sanitize(sprintf($GLOBALS['strCantLoad'], 'mcrypt')) . '</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
-
- ?>
-