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  *
   6  * @package phpMyAdmin-Auth-Cookie
   7  */
   8
   9 if (! defined('PHPMYADMIN')) {
  10     exit;
  11 }
  12
  13 /**
  14  * Swekey authentication functions.
  15  */
  16 require './libraries/auth/swekey/swekey.auth.lib.php';
  17
  18 if (function_exists('mcrypt_encrypt')) {
  19     /**
  20      * Uses faster mcrypt library if available
  21      * (as this is not called from anywhere else, put the code in-line
  22      *  for faster execution)
  23      */
  24
  25     /**
  26      * Initialization
  27      * Store the initialization vector because it will be needed for
  28      * further decryption. I don't think necessary to have one iv
  29      * per server so I don't put the server number in the cookie name.
  30      */
  31     if (empty($_COOKIE['pma_mcrypt_iv'])
  32      || false === ($iv = base64_decode($_COOKIE['pma_mcrypt_iv'], true))) {
  33         srand((double) microtime() * 1000000);
  34          $td = mcrypt_module_open(MCRYPT_BLOWFISH, '', MCRYPT_MODE_CBC, '');
  35          if ($td === false) {
  36             PMA_warnMissingExtension('mcrypt');
  37          }
  38         $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
  39         $GLOBALS['PMA_Config']->setCookie('pma_mcrypt_iv', base64_encode($iv));
  40     }
  41
  42     /**
  43      * Encryption using blowfish algorithm (mcrypt)
  44      *
  45      * @param   string  original data
  46      * @param   string  the secret
  47      *
  48      * @return  string  the encrypted result
  49      *
  50      * @access  public
  51      *
  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, $iv));
  57     }
  58
  59     /**
  60      * Decryption using blowfish algorithm (mcrypt)
  61      *
  62      * @param   string  encrypted data
  63      * @param   string  the secret
  64      *
  65      * @return  string  original data
  66      *
  67      * @access  public
  68      *
  69      */
  70     function PMA_blowfish_decrypt($encdata, $secret)
  71     {
  72         global $iv;
  73         return trim(mcrypt_decrypt(MCRYPT_BLOWFISH, $secret, base64_decode($encdata), MCRYPT_MODE_CBC, $iv));
  74     }
  75
  76 } else {
  77     require_once './libraries/blowfish.php';
  78     if (!$GLOBALS['cfg']['McryptDisableWarning']) {
  79         PMA_warnMissingExtension('mcrypt');
  80     }
  81 }
  82
  83 /**
  84  * Returns blowfish secret or generates one if needed.
  85  * @uses    $cfg['blowfish_secret']
  86  * @uses    $_SESSION['auto_blowfish_secret']
  87  *
  88  * @access  public
  89  */
  90 function PMA_get_blowfish_secret() {
  91     if (empty($GLOBALS['cfg']['blowfish_secret'])) {
  92         if (empty($_SESSION['auto_blowfish_secret'])) {
  93             // this returns 23 characters
  94             $_SESSION['auto_blowfish_secret'] = uniqid('', true);
  95         }
  96         return $_SESSION['auto_blowfish_secret'];
  97     } else {
  98         // apply md5() to work around too long secrets (returns 32 characters)
  99         return md5($GLOBALS['cfg']['blowfish_secret']);
 100     }
 101 }
 102
 103 /**
 104  * Displays authentication form
 105  *
 106  * this function MUST exit/quit the application
 107  *
 108  * @uses    $GLOBALS['server']
 109  * @uses    $GLOBALS['PHP_AUTH_USER']
 110  * @uses    $GLOBALS['pma_auth_server']
 111  * @uses    $GLOBALS['text_dir']
 112  * @uses    $GLOBALS['pmaThemeImage']
 113  * @uses    $GLOBALS['charset']
 114  * @uses    $GLOBALS['target']
 115  * @uses    $GLOBALS['db']
 116  * @uses    $GLOBALS['table']
 117  * @uses    $GLOBALS['pmaThemeImage']
 118  * @uses    $cfg['Servers']
 119  * @uses    $cfg['LoginCookieRecall']
 120  * @uses    $cfg['Lang']
 121  * @uses    $cfg['Server']
 122  * @uses    $cfg['ReplaceHelpImg']
 123  * @uses    $cfg['blowfish_secret']
 124  * @uses    $cfg['AllowArbitraryServer']
 125  * @uses    $_COOKIE
 126  * @uses    $_REQUEST['old_usr']
 127  * @uses    PMA_sendHeaderLocation()
 128  * @uses    PMA_select_language()
 129  * @uses    PMA_select_server()
 130  * @uses    file_exists()
 131  * @uses    sprintf()
 132  * @uses    count()
 133  * @uses    htmlspecialchars()
 134  * @uses    is_array()
 135  * @global  string    the last connection error
 136  *
 137  * @access  public
 138  */
 139 function PMA_auth()
 140 {
 141     global $conn_error;
 142
 143     /* Perform logout to custom URL */
 144     if (! empty($_REQUEST['old_usr'])
 145      && ! empty($GLOBALS['cfg']['Server']['LogoutURL'])) {
 146         PMA_sendHeaderLocation($GLOBALS['cfg']['Server']['LogoutURL']);
 147         exit;
 148     }
 149
 150     /* No recall if blowfish secret is not configured as it would produce garbage */
 151     if ($GLOBALS['cfg']['LoginCookieRecall'] && !empty($GLOBALS['cfg']['blowfish_secret'])) {
 152         $default_user   = $GLOBALS['PHP_AUTH_USER'];
 153         $default_server = $GLOBALS['pma_auth_server'];
 154         $autocomplete   = '';
 155     } else {
 156         $default_user   = '';
 157         $default_server = '';
 158         // skip the IE autocomplete feature.
 159         $autocomplete   = ' autocomplete="off"';
 160     }
 161
 162     $cell_align = ($GLOBALS['text_dir'] == 'ltr') ? 'left' : 'right';
 163
 164     // Defines the charset to be used
 165     header('Content-Type: text/html; charset=' . $GLOBALS['charset']);
 166     // Defines the "item" image depending on text direction
 167     $item_img = $GLOBALS['pmaThemeImage'] . 'item_' . $GLOBALS['text_dir'] . '.png';
 168
 169     /* HTML header; do not show here the PMA version to improve security */
 170     $page_title = 'phpMyAdmin ';
 171     require './libraries/header_meta_style.inc.php';
 172     require './libraries/header_scripts.inc.php';
 173     ?>
 174 <script type="text/javascript">
 175 //<![CDATA[
 176 // show login form in top frame
 177 if (top != self) {
 178     window.top.location.href=location;
 179 }
 180 //]]>
 181 </script>
 182 </head>
 183
 184 <body class="loginform">
 185
 186     <?php
 187     if (file_exists(CUSTOM_HEADER_FILE)) {
 188         require CUSTOM_HEADER_FILE;
 189     }
 190     ?>
 191
 192 <div class="container">
 193 <a href="<?php echo PMA_linkURL('http://www.phpmyadmin.net/'); ?>" target="_blank" class="logo"><?php
 194     $logo_image = $GLOBALS['pmaThemeImage'] . 'logo_right.png';
 195     if (@file_exists($logo_image)) {
 196         echo '<img src="' . $logo_image . '" id="imLogo" name="imLogo" alt="phpMyAdmin" border="0" />';
 197     } else {
 198         echo '<img name="imLogo" id="imLogo" src="' . $GLOBALS['pmaThemeImage'] . 'pma_logo.png' . '" '
 199            . 'border="0" width="88" height="31" alt="phpMyAdmin" />';
 200     }
 201     ?></a>
 202 <h1>
 203     <?php
 204     echo sprintf(__('Welcome to %s'),
 205         '<bdo dir="ltr" xml:lang="en">' . $page_title . '</bdo>');
 206     ?>
 207 </h1>
 208     <?php
 209
 210     // Show error message
 211     if (! empty($conn_error)) {
 212         PMA_Message::rawError($conn_error)->display();
 213     }
 214
 215     // Displays the languages form
 216     if (empty($GLOBALS['cfg']['Lang'])) {
 217         require_once './libraries/display_select_lang.lib.php';
 218         // use fieldset, don't show doc link
 219         PMA_select_language(true, false);
 220     }
 221
 222     ?>
 223 <br />
 224 <!-- Login form -->
 225 <form method="post" action="index.php" name="login_form"<?php echo $autocomplete; ?> target="_top" class="login">
 226     <fieldset>
 227     <legend>
 228 <?php
 229     echo __('Log in');
 230     echo '<a href="./Documentation.html" target="documentation" ' .
 231         'title="' . __('phpMyAdmin documentation') . '">';
 232     if ($GLOBALS['cfg']['ReplaceHelpImg']) {
 233         echo '<img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_help.png" width="11" height="11" alt="' . __('phpMyAdmin documentation') . '" />';
 234     } else {
 235         echo '(*)';
 236     }
 237     echo '</a>';
 238 ?>
 239 </legend>
 240
 241 <?php if ($GLOBALS['cfg']['AllowArbitraryServer']) { ?>
 242         <div class="item">
 243             <label for="input_servername" title="<?php echo __('You can enter hostname/IP address and port separated by space.'); ?>"><?php echo __('Server:'); ?></label>
 244             <input type="text" name="pma_servername" id="input_servername" value="<?php echo htmlspecialchars($default_server); ?>" size="24" class="textfield" title="<?php echo __('You can enter hostname/IP address and port separated by space.'); ?>" />
 245         </div>
 246 <?php } ?>
 247         <div class="item">
 248             <label for="input_username"><?php echo __('Username:'); ?></label>
 249             <input type="text" name="pma_username" id="input_username" value="<?php echo htmlspecialchars($default_user); ?>" size="24" class="textfield"/>
 250         </div>
 251         <div class="item">
 252             <label for="input_password"><?php echo __('Password:'); ?></label>
 253             <input type="password" name="pma_password" id="input_password" value="" size="24" class="textfield" />
 254         </div>
 255     <?php
 256     if (count($GLOBALS['cfg']['Servers']) > 1) {
 257         ?>
 258         <div class="item">
 259             <label for="select_server"><?php echo __('Server Choice'); ?>:</label>
 260             <select name="server" id="select_server"
 261         <?php
 262         if ($GLOBALS['cfg']['AllowArbitraryServer']) {
 263             echo ' onchange="document.forms[\'login_form\'].elements[\'pma_servername\'].value = \'\'" ';
 264         }
 265         echo '>';
 266
 267         require_once './libraries/select_server.lib.php';
 268         PMA_select_server(false, false);
 269
 270         echo '</select></div>';
 271     } else {
 272         echo '    <input type="hidden" name="server" value="' . $GLOBALS['server'] . '" />';
 273     } // end if (server choice)
 274     ?>
 275     </fieldset>
 276     <fieldset class="tblFooters">
 277         <input value="<?php echo __('Go'); ?>" type="submit" id="input_go" />
 278     <?php
 279     $_form_params = array();
 280     if (! empty($GLOBALS['target'])) {
 281         $_form_params['target'] = $GLOBALS['target'];
 282     }
 283     if (! empty($GLOBALS['db'])) {
 284         $_form_params['db'] = $GLOBALS['db'];
 285     }
 286     if (! empty($GLOBALS['table'])) {
 287         $_form_params['table'] = $GLOBALS['table'];
 288     }
 289     // do not generate a "server" hidden field as we want the "server"
 290     // drop-down to have priority
 291     echo PMA_generate_common_hidden_inputs($_form_params, '', 0, 'server');
 292     ?>
 293     </fieldset>
 294 </form>
 295
 296     <?php
 297
 298     // BEGIN Swekey Integration
 299     Swekey_login('input_username', 'input_go');
 300     // END Swekey Integration
 301
 302     // show the "Cookies required" message only if cookies are disabled
 303     // (we previously tried to set some cookies)
 304     if (empty($_COOKIE)) {
 305         trigger_error(__('Cookies must be enabled past this point.'), E_USER_NOTICE);
 306     }
 307     if ($GLOBALS['error_handler']->hasDisplayErrors()) {
 308         echo '<div>';
 309         $GLOBALS['error_handler']->dispErrors();
 310         echo '</div>';
 311     }
 312     ?>
 313 </div>
 314     <?php
 315     if (file_exists(CUSTOM_FOOTER_FILE)) {
 316         require CUSTOM_FOOTER_FILE;
 317     }
 318     ?>
 319 </body>
 320 </html>
 321     <?php
 322     exit;
 323 } // end of the 'PMA_auth()' function
 324
 325
 326
 327 /**
 328  * Gets advanced authentication settings
 329  *
 330  * this function DOES NOT check authentication - it just checks/provides
 331  * authentication credentials required to connect to the MySQL server
 332  * usually with PMA_DBI_connect()
 333  *
 334  * it returns false if something is missing - which usually leads to
 335  * PMA_auth() which displays login form
 336  *
 337  * it returns true if all seems ok which usually leads to PMA_auth_set_user()
 338  *
 339  * it directly switches to PMA_auth_fails() if user inactivity timout is reached
 340  *
 341  * @todo    AllowArbitraryServer on does not imply that the user wants an
 342  *          arbitrary server, or? so we should also check if this is filled and
 343  *          not only if allowed
 344  * @uses    $GLOBALS['PHP_AUTH_USER']
 345  * @uses    $GLOBALS['PHP_AUTH_PW']
 346  * @uses    $GLOBALS['no_activity']
 347  * @uses    $GLOBALS['server']
 348  * @uses    $GLOBALS['from_cookie']
 349  * @uses    $GLOBALS['pma_auth_server']
 350  * @uses    $cfg['AllowArbitraryServer']
 351  * @uses    $cfg['LoginCookieValidity']
 352  * @uses    $cfg['Servers']
 353  * @uses    $_REQUEST['old_usr'] from logout link
 354  * @uses    $_REQUEST['pma_username'] from login form
 355  * @uses    $_REQUEST['pma_password'] from login form
 356  * @uses    $_REQUEST['pma_servername'] from login form
 357  * @uses    $_COOKIE
 358  * @uses    $_SESSION['last_access_time']
 359  * @uses    $GLOBALS['PMA_Config']->removeCookie()
 360  * @uses    PMA_blowfish_decrypt()
 361  * @uses    PMA_auth_fails()
 362  * @uses    time()
 363  *
 364  * @return  boolean   whether we get authentication settings or not
 365  *
 366  * @access  public
 367  */
 368 function PMA_auth_check()
 369 {
 370     // Initialization
 371     /**
 372      * @global $GLOBALS['pma_auth_server'] the user provided server to connect to
 373      */
 374     $GLOBALS['pma_auth_server'] = '';
 375
 376     $GLOBALS['PHP_AUTH_USER'] = $GLOBALS['PHP_AUTH_PW'] = '';
 377     $GLOBALS['from_cookie'] = false;
 378
 379     // BEGIN Swekey Integration
 380     if (! Swekey_auth_check()) {
 381         return false;
 382     }
 383     // END Swekey Integration
 384
 385     if (defined('PMA_CLEAR_COOKIES')) {
 386         foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
 387             $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $key);
 388             $GLOBALS['PMA_Config']->removeCookie('pmaServer-' . $key);
 389             $GLOBALS['PMA_Config']->removeCookie('pmaUser-' . $key);
 390         }
 391         return false;
 392     }
 393
 394     if (! empty($_REQUEST['old_usr'])) {
 395         // The user wants to be logged out
 396         // -> delete his choices that were stored in session
 397
 398         // according to the PHP manual we should do this before the destroy:
 399         //$_SESSION = array();
 400         // but we still need some parts of the session information
 401         // in libraries/header_meta_style.inc.php
 402
 403         session_destroy();
 404         // -> delete password cookie(s)
 405         if ($GLOBALS['cfg']['LoginCookieDeleteAll']) {
 406             foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
 407                 $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $key);
 408                 if (isset($_COOKIE['pmaPass-' . $key])) {
 409                     unset($_COOKIE['pmaPass-' . $key]);
 410                 }
 411             }
 412         } else {
 413             $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $GLOBALS['server']);
 414             if (isset($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
 415                 unset($_COOKIE['pmaPass-' . $GLOBALS['server']]);
 416             }
 417         }
 418     }
 419
 420     if (! empty($_REQUEST['pma_username'])) {
 421         // The user just logged in
 422         $GLOBALS['PHP_AUTH_USER'] = $_REQUEST['pma_username'];
 423         $GLOBALS['PHP_AUTH_PW']   = empty($_REQUEST['pma_password']) ? '' : $_REQUEST['pma_password'];
 424         if ($GLOBALS['cfg']['AllowArbitraryServer'] && isset($_REQUEST['pma_servername'])) {
 425             $GLOBALS['pma_auth_server'] = $_REQUEST['pma_servername'];
 426         }
 427         return true;
 428     }
 429
 430     // At the end, try to set the $GLOBALS['PHP_AUTH_USER']
 431     // and $GLOBALS['PHP_AUTH_PW'] variables from cookies
 432
 433     // servername
 434     if ($GLOBALS['cfg']['AllowArbitraryServer']
 435      && ! empty($_COOKIE['pmaServer-' . $GLOBALS['server']])) {
 436         $GLOBALS['pma_auth_server'] = $_COOKIE['pmaServer-' . $GLOBALS['server']];
 437     }
 438
 439     // username
 440     if (empty($_COOKIE['pmaUser-' . $GLOBALS['server']])) {
 441         return false;
 442     }
 443
 444     $GLOBALS['PHP_AUTH_USER'] = PMA_blowfish_decrypt(
 445         $_COOKIE['pmaUser-' . $GLOBALS['server']],
 446         PMA_get_blowfish_secret());
 447
 448     // user was never logged in since session start
 449     if (empty($_SESSION['last_access_time'])) {
 450         return false;
 451     }
 452
 453     // User inactive too long
 454     if ($_SESSION['last_access_time'] < time() - $GLOBALS['cfg']['LoginCookieValidity']) {
 455         PMA_cacheUnset('is_create_db_priv', true);
 456         PMA_cacheUnset('is_process_priv', true);
 457         PMA_cacheUnset('is_reload_priv', true);
 458         PMA_cacheUnset('db_to_create', true);
 459         PMA_cacheUnset('dbs_where_create_table_allowed', true);
 460         $GLOBALS['no_activity'] = true;
 461         PMA_auth_fails();
 462         exit;
 463     }
 464
 465     // password
 466     if (empty($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
 467         return false;
 468     }
 469
 470     $GLOBALS['PHP_AUTH_PW'] = PMA_blowfish_decrypt(
 471         $_COOKIE['pmaPass-' . $GLOBALS['server']],
 472         PMA_get_blowfish_secret());
 473
 474     if ($GLOBALS['PHP_AUTH_PW'] == "\xff(blank)") {
 475         $GLOBALS['PHP_AUTH_PW'] = '';
 476     }
 477
 478     $GLOBALS['from_cookie'] = true;
 479
 480     return true;
 481 } // end of the 'PMA_auth_check()' function
 482
 483
 484 /**
 485  * Set the user and password after last checkings if required
 486  *
 487  * @uses    $GLOBALS['PHP_AUTH_USER']
 488  * @uses    $GLOBALS['PHP_AUTH_PW']
 489  * @uses    $GLOBALS['server']
 490  * @uses    $GLOBALS['from_cookie']
 491  * @uses    $GLOBALS['pma_auth_server']
 492  * @uses    $cfg['Server']
 493  * @uses    $cfg['AllowArbitraryServer']
 494  * @uses    $cfg['LoginCookieStore']
 495  * @uses    $cfg['PmaAbsoluteUri']
 496  * @uses    $_SESSION['last_access_time']
 497  * @uses    PMA_COMING_FROM_COOKIE_LOGIN
 498  * @uses    $GLOBALS['PMA_Config']->setCookie()
 499  * @uses    PMA_blowfish_encrypt()
 500  * @uses    $GLOBALS['PMA_Config']->removeCookie()
 501  * @uses    PMA_sendHeaderLocation()
 502  * @uses    time()
 503  * @uses    define()
 504  * @return  boolean   always true
 505  *
 506  * @access  public
 507  */
 508 function PMA_auth_set_user()
 509 {
 510     global $cfg;
 511
 512     // Ensures valid authentication mode, 'only_db', bookmark database and
 513     // table names and relation table name are used
 514     if ($cfg['Server']['user'] != $GLOBALS['PHP_AUTH_USER']) {
 515         foreach ($cfg['Servers'] as $idx => $current) {
 516             if ($current['host'] == $cfg['Server']['host']
 517              && $current['port'] == $cfg['Server']['port']
 518              && $current['socket'] == $cfg['Server']['socket']
 519              && $current['ssl'] == $cfg['Server']['ssl']
 520              && $current['connect_type'] == $cfg['Server']['connect_type']
 521              && $current['user'] == $GLOBALS['PHP_AUTH_USER']) {
 522                 $GLOBALS['server'] = $idx;
 523                 $cfg['Server']     = $current;
 524                 break;
 525             }
 526         } // end foreach
 527     } // end if
 528
 529     if ($GLOBALS['cfg']['AllowArbitraryServer']
 530      && ! empty($GLOBALS['pma_auth_server'])) {
 531         /* Allow to specify 'host port' */
 532         $parts = explode(' ', $GLOBALS['pma_auth_server']);
 533         if (count($parts) == 2) {
 534             $tmp_host = $parts[0];
 535             $tmp_port = $parts[1];
 536         } else {
 537             $tmp_host = $GLOBALS['pma_auth_server'];
 538             $tmp_port = '';
 539         }
 540         if ($cfg['Server']['host'] != $GLOBALS['pma_auth_server']) {
 541             $cfg['Server']['host'] = $tmp_host;
 542             if (!empty($tmp_port)) {
 543                 $cfg['Server']['port'] = $tmp_port;
 544             }
 545         }
 546         unset($tmp_host, $tmp_port, $parts);
 547     }
 548     $cfg['Server']['user']     = $GLOBALS['PHP_AUTH_USER'];
 549     $cfg['Server']['password'] = $GLOBALS['PHP_AUTH_PW'];
 550
 551     $_SESSION['last_access_time'] = time();
 552
 553     // Name and password cookies need to be refreshed each time
 554     // Duration = one month for username
 555     $GLOBALS['PMA_Config']->setCookie('pmaUser-' . $GLOBALS['server'],
 556         PMA_blowfish_encrypt($cfg['Server']['user'],
 557             PMA_get_blowfish_secret()));
 558
 559     // Duration = as configured
 560     $GLOBALS['PMA_Config']->setCookie('pmaPass-' . $GLOBALS['server'],
 561         PMA_blowfish_encrypt(!empty($cfg['Server']['password']) ? $cfg['Server']['password'] : "\xff(blank)",
 562             PMA_get_blowfish_secret()),
 563         null,
 564         $GLOBALS['cfg']['LoginCookieStore']);
 565
 566     // Set server cookies if required (once per session) and, in this case, force
 567     // reload to ensure the client accepts cookies
 568     if (! $GLOBALS['from_cookie']) {
 569         if ($GLOBALS['cfg']['AllowArbitraryServer']) {
 570             if (! empty($GLOBALS['pma_auth_server'])) {
 571                 // Duration = one month for servername
 572                 $GLOBALS['PMA_Config']->setCookie('pmaServer-' . $GLOBALS['server'], $cfg['Server']['host']);
 573             } else {
 574                 // Delete servername cookie
 575                 $GLOBALS['PMA_Config']->removeCookie('pmaServer-' . $GLOBALS['server']);
 576             }
 577         }
 578
 579         // URL where to go:
 580         $redirect_url = $cfg['PmaAbsoluteUri'] . 'index.php';
 581
 582         // any parameters to pass?
 583         $url_params = array();
 584         if (strlen($GLOBALS['db'])) {
 585             $url_params['db'] = $GLOBALS['db'];
 586         }
 587         if (strlen($GLOBALS['table'])) {
 588             $url_params['table'] = $GLOBALS['table'];
 589         }
 590         // any target to pass?
 591         if (! empty($GLOBALS['target']) && $GLOBALS['target'] != 'index.php') {
 592             $url_params['target'] = $GLOBALS['target'];
 593         }
 594
 595         /**
 596          * whether we come from a fresh cookie login
 597          */
 598         define('PMA_COMING_FROM_COOKIE_LOGIN', true);
 599
 600         /**
 601          * Clear user cache.
 602          */
 603         PMA_clearUserCache();
 604
 605         PMA_sendHeaderLocation($redirect_url . PMA_generate_common_url($url_params, '&'));
 606         exit();
 607     } // end if
 608
 609     return true;
 610 } // end of the 'PMA_auth_set_user()' function
 611
 612
 613 /**
 614  * User is not allowed to login to MySQL -> authentication failed
 615  *
 616  * prepares error message and switches to PMA_auth() which display the error
 617  * and the login form
 618  *
 619  * this function MUST exit/quit the application,
 620  * currently doen by call to PMA_auth()
 621  *
 622  * @uses    $GLOBALS['server']
 623  * @uses    $GLOBALS['allowDeny_forbidden']
 624  * @uses    $GLOBALS['no_activity']
 625  * @uses    $cfg['LoginCookieValidity']
 626  * @uses    $GLOBALS['PMA_Config']->removeCookie()
 627  * @uses    PMA_getenv()
 628  * @uses    PMA_DBI_getError()
 629  * @uses    PMA_sanitize()
 630  * @uses    PMA_auth()
 631  * @uses    sprintf()
 632  * @uses    basename()
 633  * @access  public
 634  */
 635 function PMA_auth_fails()
 636 {
 637     global $conn_error;
 638
 639     // Deletes password cookie and displays the login form
 640     $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $GLOBALS['server']);
 641
 642     if (! empty($GLOBALS['login_without_password_is_forbidden'])) {
 643         $conn_error = __('Login without a password is forbidden by configuration (see AllowNoPassword)');
 644     } elseif (! empty($GLOBALS['allowDeny_forbidden'])) {
 645         $conn_error = __('Access denied');
 646     } elseif (! empty($GLOBALS['no_activity'])) {
 647         $conn_error = sprintf(__('No activity within %s seconds; please log in again'), $GLOBALS['cfg']['LoginCookieValidity']);
 648         // Remember where we got timeout to return on same place
 649         if (PMA_getenv('SCRIPT_NAME')) {
 650             $GLOBALS['target'] = basename(PMA_getenv('SCRIPT_NAME'));
 651             // avoid "missing parameter: field" on re-entry
 652             if ('tbl_alter.php' == $GLOBALS['target']) {
 653                 $GLOBALS['target'] = 'tbl_structure.php';
 654             }
 655         }
 656     } elseif (PMA_DBI_getError()) {
 657         $conn_error = '#' . $GLOBALS['errno'] . ' ' . __('Cannot log in to the MySQL server');
 658     } else {
 659         $conn_error = __('Cannot log in to the MySQL server');
 660     }
 661
 662     // needed for PHP-CGI (not need for FastCGI or mod-php)
 663     header('Cache-Control: no-store, no-cache, must-revalidate');
 664     header('Pragma: no-cache');
 665
 666     PMA_auth();
 667 } // end of the 'PMA_auth_fails()' function
 668
 669 ?>