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