libraries/auth/cookie.auth.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Set of functions used to run cookie based authentication.
   5  * Thanks to Piotr Roszatycki <d3xter at users.sourceforge.net> and
   6  * Dan Wilson who built this patch for the Debian package.
   7  *
   8  * @package phpMyAdmin-Auth-Cookie
   9  * @version $Id$
  10  */
  11
  12 if (! defined('PHPMYADMIN')) {
  13     exit;
  14 }
  15
  16 /**
  17  * Swekey authentication functions.
  18  */
  19 require './libraries/auth/swekey/swekey.auth.lib.php';
  20
  21 if (function_exists('mcrypt_encrypt')) {
  22     /**
  23      * Uses faster mcrypt library if available
  24      * (as this is not called from anywhere else, put the code in-line
  25      *  for faster execution)
  26      */
  27
  28     /**
  29      * Initialization
  30      * Store the initialization vector because it will be needed for
  31      * further decryption. I don't think necessary to have one iv
  32      * per server so I don't put the server number in the cookie name.
  33      */
  34     if (empty($_COOKIE['pma_mcrypt_iv'])
  35      || false === ($iv = base64_decode($_COOKIE['pma_mcrypt_iv'], true))) {
  36         srand((double) microtime() * 1000000);
  37         $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_BLOWFISH, MCRYPT_MODE_CBC), MCRYPT_RAND);
  38         PMA_setCookie('pma_mcrypt_iv', base64_encode($iv));
  39     }
  40
  41     /**
  42      * Encryption using blowfish algorithm (mcrypt)
  43      *
  44      * @param   string  original data
  45      * @param   string  the secret
  46      *
  47      * @return  string  the encrypted result
  48      *
  49      * @access  public
  50      *
  51      * @author  lem9
  52      */
  53     function PMA_blowfish_encrypt($data, $secret)
  54     {
  55         global $iv;
  56         return base64_encode(mcrypt_encrypt(MCRYPT_BLOWFISH, $secret, $data, MCRYPT_MODE_CBC, $iv));
  57     }
  58
  59     /**
  60      * Decryption using blowfish algorithm (mcrypt)
  61      *
  62      * @param   string  encrypted data
  63      * @param   string  the secret
  64      *
  65      * @return  string  original data
  66      *
  67      * @access  public
  68      *
  69      * @author  lem9
  70      */
  71     function PMA_blowfish_decrypt($encdata, $secret)
  72     {
  73         global $iv;
  74         return trim(mcrypt_decrypt(MCRYPT_BLOWFISH, $secret, base64_decode($encdata), MCRYPT_MODE_CBC, $iv));
  75     }
  76
  77 } else {
  78     require_once './libraries/blowfish.php';
  79     if (!$GLOBALS['cfg']['McryptDisableWarning']) {
  80         trigger_error(PMA_sanitize(sprintf($strCantLoad, 'mcrypt')), E_USER_WARNING);
  81     }
  82 }
  83
  84 /**
  85  * Returns blowfish secret or generates one if needed.
  86  * @uses    $cfg['blowfish_secret']
  87  * @uses    $_SESSION['auto_blowfish_secret']
  88  *
  89  * @access  public
  90  */
  91 function PMA_get_blowfish_secret() {
  92     if (empty($GLOBALS['cfg']['blowfish_secret'])) {
  93         if (empty($_SESSION['auto_blowfish_secret'])) {
  94             $_SESSION['auto_blowfish_secret'] = uniqid('', true);
  95         }
  96         return $_SESSION['auto_blowfish_secret'];
  97     } else {
  98         return $GLOBALS['cfg']['blowfish_secret'];
  99     }
 100 }
 101
 102 /**
 103  * Displays authentication form
 104  *
 105  * this function MUST exit/quit the application
 106  *
 107  * @uses    $GLOBALS['server']
 108  * @uses    $GLOBALS['PHP_AUTH_USER']
 109  * @uses    $GLOBALS['pma_auth_server']
 110  * @uses    $GLOBALS['text_dir']
 111  * @uses    $GLOBALS['pmaThemeImage']
 112  * @uses    $GLOBALS['charset']
 113  * @uses    $GLOBALS['target']
 114  * @uses    $GLOBALS['db']
 115  * @uses    $GLOBALS['table']
 116  * @uses    $GLOBALS['strWelcome']
 117  * @uses    $GLOBALS['strSecretRequired']
 118  * @uses    $GLOBALS['strError']
 119  * @uses    $GLOBALS['strLogin']
 120  * @uses    $GLOBALS['strLogServer']
 121  * @uses    $GLOBALS['strLogUsername']
 122  * @uses    $GLOBALS['strLogPassword']
 123  * @uses    $GLOBALS['strServerChoice']
 124  * @uses    $GLOBALS['strGo']
 125  * @uses    $GLOBALS['strCookiesRequired']
 126  * @uses    $GLOBALS['strPmaDocumentation']
 127  * @uses    $GLOBALS['pmaThemeImage']
 128  * @uses    $cfg['Servers']
 129  * @uses    $cfg['LoginCookieRecall']
 130  * @uses    $cfg['Lang']
 131  * @uses    $cfg['Server']
 132  * @uses    $cfg['ReplaceHelpImg']
 133  * @uses    $cfg['blowfish_secret']
 134  * @uses    $cfg['AllowArbitraryServer']
 135  * @uses    $_COOKIE
 136  * @uses    $_REQUEST['old_usr']
 137  * @uses    PMA_sendHeaderLocation()
 138  * @uses    PMA_select_language()
 139  * @uses    PMA_select_server()
 140  * @uses    file_exists()
 141  * @uses    sprintf()
 142  * @uses    count()
 143  * @uses    htmlspecialchars()
 144  * @uses    is_array()
 145  * @global  string    the last connection error
 146  *
 147  * @access  public
 148  */
 149 function PMA_auth()
 150 {
 151     global $conn_error;
 152
 153     /* Perform logout to custom URL */
 154     if (! empty($_REQUEST['old_usr'])
 155      && ! empty($GLOBALS['cfg']['Server']['LogoutURL'])) {
 156         PMA_sendHeaderLocation($GLOBALS['cfg']['Server']['LogoutURL']);
 157         exit;
 158     }
 159
 160     /* No recall if blowfish secret is not configured as it would produce garbage */
 161     if ($GLOBALS['cfg']['LoginCookieRecall'] && !empty($GLOBALS['cfg']['blowfish_secret'])) {
 162         $default_user   = $GLOBALS['PHP_AUTH_USER'];
 163         $default_server = $GLOBALS['pma_auth_server'];
 164         $autocomplete   = '';
 165     } else {
 166         $default_user   = '';
 167         $default_server = '';
 168         // skip the IE autocomplete feature.
 169         $autocomplete   = ' autocomplete="off"';
 170     }
 171
 172     $cell_align = ($GLOBALS['text_dir'] == 'ltr') ? 'left' : 'right';
 173
 174     // Defines the charset to be used
 175     header('Content-Type: text/html; charset=' . $GLOBALS['charset']);
 176     // Defines the "item" image depending on text direction
 177     $item_img = $GLOBALS['pmaThemeImage'] . 'item_' . $GLOBALS['text_dir'] . '.png';
 178
 179     /* HTML header; do not show here the PMA version to improve security */
 180     $page_title = 'phpMyAdmin ';
 181     require './libraries/header_meta_style.inc.php';
 182     ?>
 183 <script type="text/javascript">
 184 //<![CDATA[
 185 // show login form in top frame
 186 if (top != self) {
 187     window.top.location.href=location;
 188 }
 189 //]]>
 190 </script>
 191 </head>
 192
 193 <body class="loginform">
 194
 195     <?php
 196     if (file_exists('./config.header.inc.php')) {
 197           require './config.header.inc.php';
 198     }
 199     ?>
 200
 201 <div class="container">
 202 <a href="http://www.phpmyadmin.net" target="_blank" class="logo"><?php
 203     $logo_image = $GLOBALS['pmaThemeImage'] . 'logo_right.png';
 204     if (@file_exists($logo_image)) {
 205         echo '<img src="' . $logo_image . '" id="imLogo" name="imLogo" alt="phpMyAdmin" border="0" />';
 206     } else {
 207         echo '<img name="imLogo" id="imLogo" src="' . $GLOBALS['pmaThemeImage'] . 'pma_logo.png' . '" '
 208            . 'border="0" width="88" height="31" alt="phpMyAdmin" />';
 209     }
 210     ?></a>
 211 <h1>
 212     <?php
 213     echo sprintf($GLOBALS['strWelcome'],
 214         '<bdo dir="ltr" xml:lang="en">' . $page_title . '</bdo>');
 215     ?>
 216 </h1>
 217     <?php
 218
 219     // Show error message
 220     if (! empty($conn_error)) {
 221         PMA_Message::rawError($conn_error)->display();
 222     }
 223
 224     // Displays the languages form
 225     if (empty($GLOBALS['cfg']['Lang'])) {
 226         require_once './libraries/display_select_lang.lib.php';
 227         // use fieldset, don't show doc link
 228         PMA_select_language(true, false);
 229     }
 230
 231     ?>
 232 <br />
 233 <!-- Login form -->
 234 <form method="post" action="index.php" name="login_form"<?php echo $autocomplete; ?> target="_top" class="login">
 235     <fieldset>
 236     <legend>
 237 <?php
 238     echo $GLOBALS['strLogin'];
 239     echo '<a href="./Documentation.html" target="documentation" ' .
 240         'title="' . $GLOBALS['strPmaDocumentation'] . '">';
 241     if ($GLOBALS['cfg']['ReplaceHelpImg']) {
 242         echo '<img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_help.png" width="11" height="11" alt="' . $GLOBALS['strPmaDocumentation'] . '" />';
 243     } else {
 244         echo '(*)';
 245     }
 246     echo '</a>';
 247 ?>
 248 </legend>
 249
 250 <?php if ($GLOBALS['cfg']['AllowArbitraryServer']) { ?>
 251         <div class="item">
 252             <label for="input_servername" title="<?php echo $GLOBALS['strLogServerHelp']; ?>"><?php echo $GLOBALS['strLogServer']; ?></label>
 253             <input type="text" name="pma_servername" id="input_servername" value="<?php echo htmlspecialchars($default_server); ?>" size="24" class="textfield" title="<?php echo $GLOBALS['strLogServerHelp']; ?>" />
 254         </div>
 255 <?php } ?>
 256         <div class="item">
 257             <label for="input_username"><?php echo $GLOBALS['strLogUsername']; ?></label>
 258             <input type="text" name="pma_username" id="input_username" value="<?php echo htmlspecialchars($default_user); ?>" size="24" class="textfield"/>
 259         </div>
 260         <div class="item">
 261             <label for="input_password"><?php echo $GLOBALS['strLogPassword']; ?></label>
 262             <input type="password" name="pma_password" id="input_password" value="" size="24" class="textfield" />
 263         </div>
 264     <?php
 265     if (count($GLOBALS['cfg']['Servers']) > 1) {
 266         ?>
 267         <div class="item">
 268             <label for="select_server"><?php echo $GLOBALS['strServerChoice']; ?>:</label>
 269             <select name="server" id="select_server"
 270         <?php
 271         if ($GLOBALS['cfg']['AllowArbitraryServer']) {
 272             echo ' onchange="document.forms[\'login_form\'].elements[\'pma_servername\'].value = \'\'" ';
 273         }
 274         echo '>';
 275
 276         require_once './libraries/select_server.lib.php';
 277         PMA_select_server(false, false);
 278
 279         echo '</select></div>';
 280     } else {
 281         echo '    <input type="hidden" name="server" value="' . $GLOBALS['server'] . '" />';
 282     } // end if (server choice)
 283     ?>
 284     </fieldset>
 285     <fieldset class="tblFooters">
 286         <input value="<?php echo $GLOBALS['strGo']; ?>" type="submit" id="input_go" />
 287     <?php
 288     $_form_params = array();
 289     if (! empty($GLOBALS['target'])) {
 290         $_form_params['target'] = $GLOBALS['target'];
 291     }
 292     if (! empty($GLOBALS['db'])) {
 293         $_form_params['db'] = $GLOBALS['db'];
 294     }
 295     if (! empty($GLOBALS['table'])) {
 296         $_form_params['table'] = $GLOBALS['table'];
 297     }
 298     // do not generate a "server" hidden field as we want the "server"
 299     // drop-down to have priority
 300     echo PMA_generate_common_hidden_inputs($_form_params, '', 0, 'server');
 301     ?>
 302     </fieldset>
 303 </form>
 304
 305     <?php
 306
 307     // BEGIN Swekey Integration
 308     Swekey_login('input_username', 'input_go');
 309     // END Swekey Integration
 310
 311     // show the "Cookies required" message only if cookies are disabled
 312     // (we previously tried to set some cookies)
 313     if (empty($_COOKIE)) {
 314         trigger_error($GLOBALS['strCookiesRequired'], E_USER_NOTICE);
 315     }
 316     if ($GLOBALS['error_handler']->hasDisplayErrors()) {
 317         echo '<div>';
 318         $GLOBALS['error_handler']->dispErrors();
 319         echo '</div>';
 320     }
 321     ?>
 322 </div>
 323 <script type="text/javascript">
 324 // <![CDATA[
 325 function PMA_focusInput()
 326 {
 327     var input_username = document.getElementById('input_username');
 328     var input_password = document.getElementById('input_password');
 329     if (input_username.value == '') {
 330         input_username.focus();
 331     } else {
 332         input_password.focus();
 333     }
 334 }
 335
 336 window.setTimeout('PMA_focusInput()', 500);
 337 // ]]>
 338 </script>
 339     <?php
 340     if (file_exists('./config.footer.inc.php')) {
 341          require './config.footer.inc.php';
 342     }
 343     ?>
 344 </body>
 345 </html>
 346     <?php
 347     exit;
 348 } // end of the 'PMA_auth()' function
 349
 350
 351
 352 /**
 353  * Gets advanced authentication settings
 354  *
 355  * this function DOES NOT check authentication - it just checks/provides
 356  * authentication credentials required to connect to the MySQL server
 357  * usually with PMA_DBI_connect()
 358  *
 359  * it returns false if something is missing - which usually leads to
 360  * PMA_auth() which displays login form
 361  *
 362  * it returns true if all seems ok which usually leads to PMA_auth_set_user()
 363  *
 364  * it directly switches to PMA_auth_fails() if user inactivity timout is reached
 365  *
 366  * @todo    AllowArbitraryServer on does not imply that the user wants an
 367  *          arbitrary server, or? so we should also check if this is filled and
 368  *          not only if allowed
 369  * @uses    $GLOBALS['PHP_AUTH_USER']
 370  * @uses    $GLOBALS['PHP_AUTH_PW']
 371  * @uses    $GLOBALS['no_activity']
 372  * @uses    $GLOBALS['server']
 373  * @uses    $GLOBALS['from_cookie']
 374  * @uses    $GLOBALS['pma_auth_server']
 375  * @uses    $cfg['AllowArbitraryServer']
 376  * @uses    $cfg['LoginCookieValidity']
 377  * @uses    $cfg['Servers']
 378  * @uses    $_REQUEST['old_usr'] from logout link
 379  * @uses    $_REQUEST['pma_username'] from login form
 380  * @uses    $_REQUEST['pma_password'] from login form
 381  * @uses    $_REQUEST['pma_servername'] from login form
 382  * @uses    $_COOKIE
 383  * @uses    $_SESSION['last_access_time']
 384  * @uses    PMA_removeCookie()
 385  * @uses    PMA_blowfish_decrypt()
 386  * @uses    PMA_auth_fails()
 387  * @uses    time()
 388  *
 389  * @return  boolean   whether we get authentication settings or not
 390  *
 391  * @access  public
 392  */
 393 function PMA_auth_check()
 394 {
 395     // Initialization
 396     /**
 397      * @global $GLOBALS['pma_auth_server'] the user provided server to connect to
 398      */
 399     $GLOBALS['pma_auth_server'] = '';
 400
 401     $GLOBALS['PHP_AUTH_USER'] = $GLOBALS['PHP_AUTH_PW'] = '';
 402     $GLOBALS['from_cookie'] = false;
 403
 404     // BEGIN Swekey Integration
 405     if (! Swekey_auth_check()) {
 406         return false;
 407     }
 408     // END Swekey Integration
 409
 410     if (defined('PMA_CLEAR_COOKIES')) {
 411         foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
 412             PMA_removeCookie('pmaPass-' . $key);
 413             PMA_removeCookie('pmaServer-' . $key);
 414             PMA_removeCookie('pmaUser-' . $key);
 415         }
 416         return false;
 417     }
 418
 419     if (! empty($_REQUEST['old_usr'])) {
 420         // The user wants to be logged out
 421         // -> delete his choices that were stored in session
 422
 423         // according to the PHP manual we should do this before the destroy:
 424         //$_SESSION = array();
 425         // but we still need some parts of the session information
 426         // in libraries/header_meta_style.inc.php
 427
 428         session_destroy();
 429         // -> delete password cookie(s)
 430         if ($GLOBALS['cfg']['LoginCookieDeleteAll']) {
 431             foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
 432                 PMA_removeCookie('pmaPass-' . $key);
 433                 if (isset($_COOKIE['pmaPass-' . $key])) {
 434                     unset($_COOKIE['pmaPass-' . $key]);
 435                 }
 436             }
 437         } else {
 438             PMA_removeCookie('pmaPass-' . $GLOBALS['server']);
 439             if (isset($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
 440                 unset($_COOKIE['pmaPass-' . $GLOBALS['server']]);
 441             }
 442         }
 443     }
 444
 445     if (! empty($_REQUEST['pma_username'])) {
 446         // The user just logged in
 447         $GLOBALS['PHP_AUTH_USER'] = $_REQUEST['pma_username'];
 448         $GLOBALS['PHP_AUTH_PW']   = empty($_REQUEST['pma_password']) ? '' : $_REQUEST['pma_password'];
 449         if ($GLOBALS['cfg']['AllowArbitraryServer'] && isset($_REQUEST['pma_servername'])) {
 450             $GLOBALS['pma_auth_server'] = $_REQUEST['pma_servername'];
 451         }
 452         return true;
 453     }
 454
 455     // At the end, try to set the $GLOBALS['PHP_AUTH_USER']
 456     // and $GLOBALS['PHP_AUTH_PW'] variables from cookies
 457
 458     // servername
 459     if ($GLOBALS['cfg']['AllowArbitraryServer']
 460      && ! empty($_COOKIE['pmaServer-' . $GLOBALS['server']])) {
 461         $GLOBALS['pma_auth_server'] = $_COOKIE['pmaServer-' . $GLOBALS['server']];
 462     }
 463
 464     // username
 465     if (empty($_COOKIE['pmaUser-' . $GLOBALS['server']])) {
 466         return false;
 467     }
 468
 469     $GLOBALS['PHP_AUTH_USER'] = PMA_blowfish_decrypt(
 470         $_COOKIE['pmaUser-' . $GLOBALS['server']],
 471         PMA_get_blowfish_secret());
 472
 473     // user was never logged in since session start
 474     if (empty($_SESSION['last_access_time'])) {
 475         return false;
 476     }
 477
 478     // User inactive too long
 479     if ($_SESSION['last_access_time'] < time() - $GLOBALS['cfg']['LoginCookieValidity']) {
 480         PMA_cacheUnset('is_create_db_priv', true);
 481         PMA_cacheUnset('is_process_priv', true);
 482         PMA_cacheUnset('is_reload_priv', true);
 483         PMA_cacheUnset('db_to_create', true);
 484         PMA_cacheUnset('dbs_where_create_table_allowed', true);
 485         $GLOBALS['no_activity'] = true;
 486         PMA_auth_fails();
 487         exit;
 488     }
 489
 490     // password
 491     if (empty($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
 492         return false;
 493     }
 494
 495     $GLOBALS['PHP_AUTH_PW'] = PMA_blowfish_decrypt(
 496         $_COOKIE['pmaPass-' . $GLOBALS['server']],
 497         PMA_get_blowfish_secret());
 498
 499     if ($GLOBALS['PHP_AUTH_PW'] == "\xff(blank)") {
 500         $GLOBALS['PHP_AUTH_PW'] = '';
 501     }
 502
 503     $GLOBALS['from_cookie'] = true;
 504
 505     return true;
 506 } // end of the 'PMA_auth_check()' function
 507
 508
 509 /**
 510  * Set the user and password after last checkings if required
 511  *
 512  * @uses    $GLOBALS['PHP_AUTH_USER']
 513  * @uses    $GLOBALS['PHP_AUTH_PW']
 514  * @uses    $GLOBALS['server']
 515  * @uses    $GLOBALS['from_cookie']
 516  * @uses    $GLOBALS['pma_auth_server']
 517  * @uses    $cfg['Server']
 518  * @uses    $cfg['AllowArbitraryServer']
 519  * @uses    $cfg['LoginCookieStore']
 520  * @uses    $cfg['PmaAbsoluteUri']
 521  * @uses    $_SESSION['last_access_time']
 522  * @uses    PMA_COMING_FROM_COOKIE_LOGIN
 523  * @uses    PMA_setCookie()
 524  * @uses    PMA_blowfish_encrypt()
 525  * @uses    PMA_removeCookie()
 526  * @uses    PMA_sendHeaderLocation()
 527  * @uses    time()
 528  * @uses    define()
 529  * @return  boolean   always true
 530  *
 531  * @access  public
 532  */
 533 function PMA_auth_set_user()
 534 {
 535     global $cfg;
 536
 537     // Ensures valid authentication mode, 'only_db', bookmark database and
 538     // table names and relation table name are used
 539     if ($cfg['Server']['user'] != $GLOBALS['PHP_AUTH_USER']) {
 540         foreach ($cfg['Servers'] as $idx => $current) {
 541             if ($current['host'] == $cfg['Server']['host']
 542              && $current['port'] == $cfg['Server']['port']
 543              && $current['socket'] == $cfg['Server']['socket']
 544              && $current['ssl'] == $cfg['Server']['ssl']
 545              && $current['connect_type'] == $cfg['Server']['connect_type']
 546              && $current['user'] == $GLOBALS['PHP_AUTH_USER']) {
 547                 $GLOBALS['server'] = $idx;
 548                 $cfg['Server']     = $current;
 549                 break;
 550             }
 551         } // end foreach
 552     } // end if
 553
 554     if ($GLOBALS['cfg']['AllowArbitraryServer']
 555      && ! empty($GLOBALS['pma_auth_server'])) {
 556         /* Allow to specify 'host port' */
 557         $parts = explode(' ', $GLOBALS['pma_auth_server']);
 558         if (count($parts) == 2) {
 559             $tmp_host = $parts[0];
 560             $tmp_port = $parts[1];
 561         } else {
 562             $tmp_host = $GLOBALS['pma_auth_server'];
 563             $tmp_port = '';
 564         }
 565         if ($cfg['Server']['host'] != $GLOBALS['pma_auth_server']) {
 566             $cfg['Server']['host'] = $tmp_host;
 567             if (!empty($tmp_port)) {
 568                 $cfg['Server']['port'] = $tmp_port;
 569             }
 570         }
 571         unset($tmp_host, $tmp_port, $parts);
 572     }
 573     $cfg['Server']['user']     = $GLOBALS['PHP_AUTH_USER'];
 574     $cfg['Server']['password'] = $GLOBALS['PHP_AUTH_PW'];
 575
 576     $_SESSION['last_access_time'] = time();
 577
 578     // Name and password cookies need to be refreshed each time
 579     // Duration = one month for username
 580     PMA_setCookie('pmaUser-' . $GLOBALS['server'],
 581         PMA_blowfish_encrypt($cfg['Server']['user'],
 582             PMA_get_blowfish_secret()));
 583
 584     // Duration = as configured
 585     PMA_setCookie('pmaPass-' . $GLOBALS['server'],
 586         PMA_blowfish_encrypt(!empty($cfg['Server']['password']) ? $cfg['Server']['password'] : "\xff(blank)",
 587             PMA_get_blowfish_secret()),
 588         null,
 589         $GLOBALS['cfg']['LoginCookieStore']);
 590
 591     // Set server cookies if required (once per session) and, in this case, force
 592     // reload to ensure the client accepts cookies
 593     if (! $GLOBALS['from_cookie']) {
 594         if ($GLOBALS['cfg']['AllowArbitraryServer']) {
 595             if (! empty($GLOBALS['pma_auth_server'])) {
 596                 // Duration = one month for servername
 597                 PMA_setCookie('pmaServer-' . $GLOBALS['server'], $cfg['Server']['host']);
 598             } else {
 599                 // Delete servername cookie
 600                 PMA_removeCookie('pmaServer-' . $GLOBALS['server']);
 601             }
 602         }
 603
 604         // URL where to go:
 605         $redirect_url = $cfg['PmaAbsoluteUri'] . 'index.php';
 606
 607         // any parameters to pass?
 608         $url_params = array();
 609         if (strlen($GLOBALS['db'])) {
 610             $url_params['db'] = $GLOBALS['db'];
 611         }
 612         if (strlen($GLOBALS['table'])) {
 613             $url_params['table'] = $GLOBALS['table'];
 614         }
 615         // any target to pass?
 616         if (! empty($GLOBALS['target']) && $GLOBALS['target'] != 'index.php') {
 617             $url_params['target'] = $GLOBALS['target'];
 618         }
 619
 620         /**
 621          * whether we come from a fresh cookie login
 622          */
 623         define('PMA_COMING_FROM_COOKIE_LOGIN', true);
 624         PMA_sendHeaderLocation($redirect_url . PMA_generate_common_url($url_params, '&'));
 625         exit();
 626     } // end if
 627
 628     return true;
 629 } // end of the 'PMA_auth_set_user()' function
 630
 631
 632 /**
 633  * User is not allowed to login to MySQL -> authentication failed
 634  *
 635  * prepares error message and switches to PMA_auth() which display the error
 636  * and the login form
 637  *
 638  * this function MUST exit/quit the application,
 639  * currently doen by call to PMA_auth()
 640  *
 641  * @todo    $php_errormsg is invalid here!? it will never be set in this scope
 642  * @uses    $GLOBALS['server']
 643  * @uses    $GLOBALS['allowDeny_forbidden']
 644  * @uses    $GLOBALS['strAccessDenied']
 645  * @uses    $GLOBALS['strNoActivity']
 646  * @uses    $GLOBALS['strCannotLogin']
 647  * @uses    $GLOBALS['no_activity']
 648  * @uses    $cfg['LoginCookieValidity']
 649  * @uses    PMA_removeCookie()
 650  * @uses    PMA_getenv()
 651  * @uses    PMA_DBI_getError()
 652  * @uses    PMA_sanitize()
 653  * @uses    PMA_auth()
 654  * @uses    sprintf()
 655  * @uses    basename()
 656  * @access  public
 657  */
 658 function PMA_auth_fails()
 659 {
 660     global $conn_error;
 661
 662     // Deletes password cookie and displays the login form
 663     PMA_removeCookie('pmaPass-' . $GLOBALS['server']);
 664
 665     if (! empty($GLOBALS['login_without_password_is_forbidden'])) {
 666         $conn_error = $GLOBALS['strLoginWithoutPassword'];
 667     } elseif (! empty($GLOBALS['allowDeny_forbidden'])) {
 668         $conn_error = $GLOBALS['strAccessDenied'];
 669     } elseif (! empty($GLOBALS['no_activity'])) {
 670         $conn_error = sprintf($GLOBALS['strNoActivity'], $GLOBALS['cfg']['LoginCookieValidity']);
 671         // Remember where we got timeout to return on same place
 672         if (PMA_getenv('SCRIPT_NAME')) {
 673             $GLOBALS['target'] = basename(PMA_getenv('SCRIPT_NAME'));
 674             // avoid "missing parameter: field" on re-entry
 675             if ('tbl_alter.php' == $GLOBALS['target']) {
 676                 $GLOBALS['target'] = 'tbl_structure.php';
 677             }
 678         }
 679     } elseif (PMA_DBI_getError()) {
 680         $conn_error = PMA_sanitize(PMA_DBI_getError());
 681     } elseif (isset($php_errormsg)) {
 682         $conn_error = $php_errormsg;
 683     } else {
 684         $conn_error = $GLOBALS['strCannotLogin'];
 685     }
 686
 687     // needed for PHP-CGI (not need for FastCGI or mod-php)
 688     header('Cache-Control: no-store, no-cache, must-revalidate');
 689     header('Pragma: no-cache');
 690
 691     PMA_auth();
 692 } // end of the 'PMA_auth_fails()' function
 693
 694 ?>