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|
<?php /* $Id: cookie.auth.lib.php,v 2.18 2004/09/14 14:42:47 nijel Exp $ */ // vim: 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 builds this patch for the Debian package. | // +--------------------------------------------------------------------------+
if (!isset($coming_from_common)) { exit; }
require_once('./libraries/blowfish.php');
// Gets the default font sizes PMA_setFontSizes(); // Defines the cookie path and whether the server is using https or not $pma_uri_parts = parse_url($cfg['PmaAbsoluteUri']); $cookie_path = substr($pma_uri_parts['path'], 0, strrpos($pma_uri_parts['path'], '/')); $is_https = (isset($pma_uri_parts['scheme']) && $pma_uri_parts['scheme'] == 'https') ? 1 : 0; $current_time = time();
/** * String padding * * @param string input string * @param integer length of the result * @param string the filling string * @param integer padding mode * * @return string the padded string * * @access public */ function full_str_pad($input, $pad_length, $pad_string = '', $pad_type = 0) { $str = ''; $length = $pad_length - strlen($input); if ($length > 0) { // str_repeat doesn't like negatives if ($pad_type == STR_PAD_RIGHT) { // STR_PAD_RIGHT == 1 $str = $input.str_repeat($pad_string, $length); } elseif ($pad_type == STR_PAD_BOTH) { // STR_PAD_BOTH == 2 $str = str_repeat($pad_string, floor($length/2)); $str .= $input; $str .= str_repeat($pad_string, ceil($length/2)); } else { // defaults to STR_PAD_LEFT == 0 $str = str_repeat($pad_string, $length).$input; } } else { // if $length is negative or zero we don't need to do anything $str = $input; } return $str; }
/** * Encryption using blowfish algorithm * * @param string original data * @param string the secret * * @return string the encrypted result * * @access public * * @author lem9 */ function PMA_blowfish_encrypt($data, $secret) { $pma_cipher = new Horde_Cipher_blowfish; $encrypt = ''; for ($i=0; $i<strlen($data); $i+=8) { $block = substr($data, $i, 8); if (strlen($block) < 8) { $block = full_str_pad($block,8,"\0", 1); } $encrypt .= $pma_cipher->encryptBlock($block, $secret); } return base64_encode($encrypt); }
/** * Decryption using blowfish algorithm * * @param string encrypted data * @param string the secret * * @return string original data * * @access public * * @author lem9 */ function PMA_blowfish_decrypt($encdata, $secret) { $pma_cipher = new Horde_Cipher_blowfish; $decrypt = ''; $data = base64_decode($encdata); for ($i=0; $i<strlen($data); $i+=8) { $decrypt .= $pma_cipher->decryptBlock(substr($data, $i, 8), $secret); } return trim($decrypt); }
/** * Sorts available languages by their true names * * @param array the array to be sorted * @param mixed a required parameter * * @return the sorted array * * @access private */ function PMA_cookie_cmp(&$a, $b) { return (strcmp($a[1], $b[1])); } // end of the 'PMA_cmp()' function
/** * Displays authentication form * * @global string the font face to use * @global string the default font size to use * @global string the big font size to use * @global array the list of servers settings * @global array the list of available translations * @global string the current language * @global integer the current server id * @global string the currect charset for MySQL * @global array the array of cookie variables if register_globals is * off * * @return boolean always true (no return indeed) * * @access public */ function PMA_auth() { global $right_font_family, $font_size, $font_bigger; global $cfg, $available_languages; global $lang, $server, $convcharset; global $conn_error;
// Tries to get the username from cookie whatever are the values of the // 'register_globals' and the 'variables_order' directives if last login // should be recalled, else skip the IE autocomplete feature. if ($cfg['LoginCookieRecall']) { // username // do not try to use pma_cookie_username as it was encoded differently // in previous versions and would produce an undefined offset in blowfish
if (!empty($_COOKIE) && isset($_COOKIE['pma_cookie_username-' . $server])) { $default_user = $_COOKIE['pma_cookie_username-' . $server]; }
$decrypted_user = isset($default_user) ? PMA_blowfish_decrypt($default_user, $GLOBALS['cfg']['blowfish_secret']) : ''; $pos = strrpos($decrypted_user, ':'); $default_user = substr($decrypted_user, 0, $pos);
// server name if (!empty($GLOBALS['pma_cookie_servername'])) { $default_server = $GLOBALS['pma_cookie_servername']; } else if (!empty($_COOKIE) && isset($_COOKIE['pma_cookie_servername-' . $server])) { $default_server = $_COOKIE['pma_cookie_servername-' . $server]; } if (isset($default_server) && get_magic_quotes_gpc()) { $default_server = stripslashes($default_server); }
$autocomplete = ''; } else { $default_user = ''; $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']);
require_once('./libraries/select_theme.lib.php'); // Defines the "item" image depending on text direction $item_img = $GLOBALS['pmaThemeImage'] . 'item_ltr.png';
// Title ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $GLOBALS['available_languages'][$GLOBALS['lang']][2]; ?>" lang="<?php echo $GLOBALS['available_languages'][$GLOBALS['lang']][2]; ?>" dir="<?php echo $GLOBALS['text_dir']; ?>">
<head> <title>phpMyAdmin <?php echo PMA_VERSION; ?></title> <meta http-equiv="Content-Type" content="text/html; charset=<?php echo $GLOBALS['charset']; ?>" /> <script language="JavaScript" type="text/javascript"> <!-- /* added 2004-06-10 by Michael Keck * we need this for Backwards-Compatibility and resolving problems * with non DOM browsers, which may have problems with css 2 (like NC 4) */ var isDOM = (typeof(document.getElementsByTagName) != 'undefined' && typeof(document.createElement) != 'undefined') ? 1 : 0; var isIE4 = (typeof(document.all) != 'undefined' && parseInt(navigator.appVersion) >= 4) ? 1 : 0; var isNS4 = (typeof(document.layers) != 'undefined') ? 1 : 0; var capable = (isDOM || isIE4 || isNS4) ? 1 : 0; // Uggly fix for Opera and Konqueror 2.2 that are half DOM compliant if (capable) { if (typeof(window.opera) != 'undefined') { var browserName = ' ' + navigator.userAgent.toLowerCase(); if ((browserName.indexOf('konqueror 7') == 0)) { capable = 0; } } else if (typeof(navigator.userAgent) != 'undefined') { var browserName = ' ' + navigator.userAgent.toLowerCase(); if ((browserName.indexOf('konqueror') > 0) && (browserName.indexOf('konqueror/3') == 0)) { capable = 0; } } // end if... else if... } // end if document.writeln('<link rel="stylesheet" type="text/css" href="<?php echo defined('PMA_PATH_TO_BASEDIR') ? PMA_PATH_TO_BASEDIR : './'; ?>css/phpmyadmin.css.php?lang=<?php echo $GLOBALS['available_languages'][$GLOBALS['lang']][2]; ?>&js_frame=right&js_isDOM=' + isDOM + '" />'); //--> </script> <noscript> <link rel="stylesheet" type="text/css" href="<?php echo defined('PMA_PATH_TO_BASEDIR') ? PMA_PATH_TO_BASEDIR : './'; ?>css/phpmyadmin.css.php?lang=<?php echo $GLOBALS['available_languages'][$GLOBALS['lang']][2]; ?>&js_frame=right" /> </noscript>
<base href="<?php echo $cfg['PmaAbsoluteUri']; ?>" /> <script language="javascript" type="text/javascript"> <!-- // show login form in top frame if (top != self) { window.top.location.href=location; } //--> </script> </head>
<body bgcolor="<?php echo $cfg['RightBgColor']; ?>">
<?php include('./config.header.inc.php'); ?>
<center> <a href="http://www.phpmyadmin.net" target="_blank"><?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="' . $GLOBALS['pmaThemeImage'] . 'pma_logo.png' . '" ' . 'border="0" width="88" height="31" alt="phpMyAdmin" />'; } ?></a> <h2><?php echo sprintf($GLOBALS['strWelcome'], ' phpMyAdmin ' . PMA_VERSION); ?></h2> <?php // Displays the languages form if (empty($cfg['Lang'])) { echo "\n"; ?> <!-- Language selection --> <form method="post" action="index.php" target="_top"> <input type="hidden" name="server" value="<?php echo $server; ?>" /> <table border="0" cellpadding="3" cellspacing="0"> <tr> <td><b>Language: </b></td> <td> <select name="lang" dir="ltr" onchange="this.form.submit();"> <?php echo "\n";
uasort($available_languages, 'PMA_cookie_cmp'); foreach ($available_languages AS $id => $tmplang) { $lang_name = ucfirst(substr(strstr($tmplang[0], '|'), 1)); if ($lang == $id) { $selected = ' selected="selected"'; } else { $selected = ''; } echo ' '; echo '<option value="' . $id . '"' . $selected . '>' . $lang_name . ' (' . $id . ')</option>' . "\n"; } // end while ?> </select> <input type="submit" value="<?php echo $GLOBALS['strGo']; ?>" /> </td> </tr> <?php } echo "\n\n";
// Displays the warning message and the login form
if ($GLOBALS['cfg']['blowfish_secret']=='') { ?> <tr><td colspan="2" height="5"></td></tr> <tr> <th colspan="2" align="left" class="tblHeadError"> <div class="errorhead"><?php echo $GLOBALS['strError']; ?></div> </th> </tr> <tr> <td class="tblError" colspan="2" align="left"><?php echo $GLOBALS['strSecretRequired']; ?></td> </tr> <?php include('./config.footer.inc.php'); echo ' </table>' . "\n" . ' </form>' . "\n" . ' </body>' . "\n" . '</html>'; exit(); } ?> </table> </form> <br /> <!-- Login form --> <form method="post" action="index.php" name="login_form"<?php echo $autocomplete; ?> target="_top"> <table cellpadding="3" cellspacing="0"> <tr> <th align="left" colspan="2" class="tblHeaders" style="font-size: 14px; font-weight: bold;"><?php echo $GLOBALS['strLogin']; ?></th> </tr> <tr> <td align="center" colspan="2" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"><?php echo '(' . $GLOBALS['strCookiesRequired'] . ')'; ?></td> </tr> <?php if ($GLOBALS['cfg']['AllowArbitraryServer']) { ?> <tr> <td align="right" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"><b><?php echo $GLOBALS['strLogServer']; ?>: </b></td> <td align="<?php echo $cell_align; ?>" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"> <input type="text" name="pma_servername" value="<?php echo (isset($default_server) ? $default_server : ''); ?>" size="24" class="textfield" onfocus="this.select()" /> </td> </tr> <?php } ?> <tr> <td align="right" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"><b><?php echo $GLOBALS['strLogUsername']; ?> </b></td> <td align="<?php echo $cell_align; ?>" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"> <input type="text" name="pma_username" value="<?php echo (isset($default_user) ? $default_user : ''); ?>" size="24" class="textfield" onfocus="this.select()" /> </td> </tr> <tr> <td align="right" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"><b><?php echo $GLOBALS['strLogPassword']; ?> </b></td> <td align="<?php echo $cell_align; ?>" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"> <input type="password" name="pma_password" value="" size="24" class="textfield" onfocus="this.select()" /> </td> </tr> <?php if (count($cfg['Servers']) > 1) { echo "\n"; ?> <tr> <td align="right" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"><b><?php echo $GLOBALS['strServerChoice']; ?>: </b></td> <td align="<?php echo $cell_align; ?>" bgcolor="<?php echo $GLOBALS['cfg']['BgcolorOne']; ?>"> <select name="server" <?php if ($GLOBALS['cfg']['AllowArbitraryServer']) { echo ' onchange="document.forms[\'login_form\'].elements[\'pma_servername\'].value = \'\'" '; } ?> > <?php echo "\n"; // Displays the MySQL servers choice foreach ($cfg['Servers'] AS $key => $val) { if (!empty($val['host']) || $val['auth_type'] == 'arbitrary') { echo ' <option value="' . $key . '"'; if (!empty($server) && ($server == $key)) { echo ' selected="selected"'; } echo '>'; if ($val['verbose'] != '') { echo $val['verbose']; } elseif ($val['auth_type'] == 'arbitrary') { echo $GLOBALS['strArbitrary']; } else { echo $val['host']; if (!empty($val['port'])) { echo ':' . $val['port']; } // loic1: skip this because it's not a so good idea to // display sockets used to everybody // if (!empty($val['socket']) && PMA_PHP_INT_VERSION >= 30010) { // echo ':' . $val['socket']; // } } // loic1: if 'only_db' is an array and there is more than one // value, displaying such informations may not be a so // good idea if (!empty($val['only_db'])) { echo ' - ' . (is_array($val['only_db']) ? implode(', ', $val['only_db']) : $val['only_db']); } if (!empty($val['user']) && ($val['auth_type'] == 'basic')) { echo ' (' . $val['user'] . ')'; } echo ' </option>' . "\n"; } // end if (!empty($val['host'])) } // end while ?> </select> </td> </tr> <?php } // end if (server choice) echo "\n"; if (!empty($conn_error)) { echo '<tr><td colspan="2" height="5"></td></tr>'; echo '<tr><th colspan="2" align="left" class="tblHeadError"><div class="errorhead">' . $GLOBALS['strError'] . '</div></th></tr>' . "\n"; echo '<tr><td colspan="2" align="left" class="tblError">'. $conn_error . '</td></tr>' . "\n"; } ?> <tr> <td colspan="2" align="right"> <?php if (count($cfg['Servers']) == 1) { echo ' <input type="hidden" name="server" value="' . $server . '" />'; } echo "\n"; ?> <input type="hidden" name="lang" value="<?php echo $lang; ?>" /> <input type="hidden" name="convcharset" value="<?php echo $convcharset; ?>" /> <?php if (isset($GLOBALS['db'])) { echo ' <input type="hidden" name="db" value="' . htmlspecialchars($GLOBALS['db']) . '" />' . "\n"; } ?> <input type="submit" value="<?php echo $GLOBALS['strLogin']; ?>" id="buttonYes" /> </td> </tr> </table> </form> </center>
<script type="text/javascript" language="javascript"> <!-- var uname = document.forms['login_form'].elements['pma_username']; var pword = document.forms['login_form'].elements['pma_password']; if (uname.value == '') { uname.focus(); } else { pword.focus(); } //--> </script>
<?php include('./config.footer.inc.php'); ?>
</body>
</html> <?php exit();
return TRUE; } // 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 cookie variables if register_globals is * off * @global string the servername sent by the login form * @global string the username sent by the login form * @global string the password sent by the login form * @global string the username of the user who logs out * @global boolean whether the login/password pair is grabbed from a * cookie or not * * @return boolean whether we get authentication settings or not * * @access public */ function PMA_auth_check() { global $PHP_AUTH_USER, $PHP_AUTH_PW, $pma_auth_server; global $pma_servername, $pma_username, $pma_password, $old_usr, $server; global $from_cookie;
// Initialization $PHP_AUTH_USER = $PHP_AUTH_PW = ''; $from_cookie = FALSE; $from_form = FALSE;
// The user wants to be logged out -> delete password cookie if (!empty($old_usr)) { setcookie('pma_cookie_password-' . $server, '', 0, $GLOBALS['cookie_path'], '' , $GLOBALS['is_https']); }
// The user just logged in else if (!empty($pma_username)) { $PHP_AUTH_USER = $pma_username; $PHP_AUTH_PW = (empty($pma_password)) ? '' : $pma_password; if ($GLOBALS['cfg']['AllowArbitraryServer']) { $pma_auth_server = $pma_servername; } $from_form = TRUE; }
// At the end, try to set the $PHP_AUTH_USER & $PHP_AUTH_PW variables // from cookies whatever are the values of the 'register_globals' and // the 'variables_order' directives else { if ($GLOBALS['cfg']['AllowArbitraryServer']) { // servername if (!empty($pma_cookie_servername)) { $pma_auth_server = $pma_cookie_servername; $from_cookie = TRUE; } else if (!empty($_COOKIE) && isset($_COOKIE['pma_cookie_servername-' . $server])) { $pma_auth_server = $_COOKIE['pma_cookie_servername-' . $server]; $from_cookie = TRUE; } }
// username if (!empty($_COOKIE) && isset($_COOKIE['pma_cookie_username-' . $server])) { $PHP_AUTH_USER = $_COOKIE['pma_cookie_username-' . $server]; $from_cookie = TRUE; } $decrypted_user = PMA_blowfish_decrypt($PHP_AUTH_USER, $GLOBALS['cfg']['blowfish_secret']); $pos = strrpos($decrypted_user, ':'); $PHP_AUTH_USER = substr($decrypted_user, 0, $pos);
$decrypted_time = (int)substr($decrypted_user, $pos + 1);
/* User inactive too long */ /* FIXME: maybe we could say it to user... */ if ($decrypted_time < $GLOBALS['current_time'] - $GLOBALS['cfg']['LoginCookieValidity']) { return FALSE; }
// password if (!empty($pma_cookie_password)) { $PHP_AUTH_PW = $pma_cookie_password; } else if (!empty($_COOKIE) && isset($_COOKIE['pma_cookie_password-' . $server])) { $PHP_AUTH_PW = $_COOKIE['pma_cookie_password-' . $server]; } else { $from_cookie = FALSE; } $PHP_AUTH_PW = PMA_blowfish_decrypt($PHP_AUTH_PW, $GLOBALS['cfg']['blowfish_secret'] . $decrypted_time);
if ($PHP_AUTH_PW == "\xff(blank)") { $PHP_AUTH_PW = ''; } }
// Returns whether we get authentication settings or not if (!$from_cookie && !$from_form) { return FALSE; } elseif ($from_cookie) { return TRUE; } else { // we don't need to strip here, it is done in grab_globals 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 * @global boolean whether the login/password pair has been grabbed from * a cookie or not * * @return boolean always true * * @access public */ function PMA_auth_set_user() { global $cfg, $server; global $PHP_AUTH_USER, $PHP_AUTH_PW, $pma_auth_server; global $from_cookie;
// Ensures valid authentication mode, 'only_db', bookmark database and // table names and relation table name are used if ($cfg['Server']['user'] != $PHP_AUTH_USER) { $servers_cnt = count($cfg['Servers']); for ($i = 1; $i <= $servers_cnt; $i++) { if (isset($cfg['Servers'][$i]) && ($cfg['Servers'][$i]['host'] == $cfg['Server']['host'] && $cfg['Servers'][$i]['user'] == $PHP_AUTH_USER)) { $server = $i; $cfg['Server'] = $cfg['Servers'][$i]; break; } } // end for } // end if
$pma_server_changed = FALSE; if ($GLOBALS['cfg']['AllowArbitraryServer'] && isset($pma_auth_server) && !empty($pma_auth_server) && ($cfg['Server']['host'] != $pma_auth_server) ) { $cfg['Server']['host'] = $pma_auth_server; $pma_server_changed = TRUE; } $cfg['Server']['user'] = $PHP_AUTH_USER; $cfg['Server']['password'] = $PHP_AUTH_PW;
// Name and password cookies needs to be refreshed each time // Duration = one month for username setcookie('pma_cookie_username-' . $server, PMA_blowfish_encrypt($cfg['Server']['user'] . ':' . $GLOBALS['current_time'], $GLOBALS['cfg']['blowfish_secret']), time() + (60 * 60 * 24 * 30), $GLOBALS['cookie_path'], '', $GLOBALS['is_https']);
// Duration = till the browser is closed for password (we don't want this to be saved) setcookie('pma_cookie_password-' . $server, PMA_blowfish_encrypt(!empty($cfg['Server']['password']) ? $cfg['Server']['password'] : "\xff(blank)", $GLOBALS['cfg']['blowfish_secret'] . $GLOBALS['current_time']), 0, $GLOBALS['cookie_path'], '', $GLOBALS['is_https']);
// Set server cookies if required (once per session) and, in this case, force // reload to ensure the client accepts cookies if (!$from_cookie) { if ($GLOBALS['cfg']['AllowArbitraryServer']) { if (isset($pma_auth_server) && !empty($pma_auth_server) && $pma_server_changed) { // Duration = one month for serverrname setcookie('pma_cookie_servername-' . $server, $cfg['Server']['host'], time() + (60 * 60 * 24 * 30), $GLOBALS['cookie_path'], '', $GLOBALS['is_https']); } else { // Delete servername cookie setcookie('pma_cookie_servername-' . $server, '', 0, $GLOBALS['cookie_path'], '' , $GLOBALS['is_https']); } }
// loic1: workaround against a IIS 5.0 bug // lem9: here, PMA_sendHeaderLocation() has not yet been defined, // so use the workaround if (empty($GLOBALS['SERVER_SOFTWARE'])) { if (isset($_SERVER) && !empty($_SERVER['SERVER_SOFTWARE'])) { $GLOBALS['SERVER_SOFTWARE'] = $_SERVER['SERVER_SOFTWARE']; } } // end if if (!empty($GLOBALS['SERVER_SOFTWARE']) && $GLOBALS['SERVER_SOFTWARE'] == 'Microsoft-IIS/5.0') { header('Refresh: 0; url=' . $cfg['PmaAbsoluteUri'] . 'index.php?' . PMA_generate_common_url('', '', '&')); } else { header('Location: ' . $cfg['PmaAbsoluteUri'] . 'index.php?' . PMA_generate_common_url('', '', '&')); } exit(); } // end if
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() { global $conn_error, $server;
// Deletes password cookie and displays the login form setcookie('pma_cookie_password-' . $server, '', 0, $GLOBALS['cookie_path'], '' , $GLOBALS['is_https']);
if (PMA_DBI_getError()) { $conn_error = PMA_DBI_getError(); } else if (isset($php_errormsg)) { $conn_error = $php_errormsg; } else { $conn_error = $GLOBALS['strCannotLogin']; }
PMA_auth();
return TRUE; } // end of the 'PMA_auth_fails()' function
?>
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