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     ?>
 173 <script src="./js/jquery/jquery-1.4.2.js" type="text/javascript"></script>
 174 <script src="./js/update-location.js" type="text/javascript"></script>
 175 <script type="text/javascript">
 176 //<![CDATA[
 177 // show login form in top frame
 178 if (top != self) {
 179     window.top.location.href=location;
 180 }
 181 //]]>
 182 </script>
 183 <script src="./js/functions.js" type="text/javascript"></script>
 184 </head>
 185
 186 <body class="loginform">
 187
 188     <?php
 189     if (file_exists(CUSTOM_HEADER_FILE)) {
 190         require CUSTOM_HEADER_FILE;
 191     }
 192     ?>
 193
 194 <div class="container">
 195 <a href="http://www.phpmyadmin.net" target="_blank" class="logo"><?php
 196     $logo_image = $GLOBALS['pmaThemeImage'] . 'logo_right.png';
 197     if (@file_exists($logo_image)) {
 198         echo '<img src="' . $logo_image . '" id="imLogo" name="imLogo" alt="phpMyAdmin" border="0" />';
 199     } else {
 200         echo '<img name="imLogo" id="imLogo" src="' . $GLOBALS['pmaThemeImage'] . 'pma_logo.png' . '" '
 201            . 'border="0" width="88" height="31" alt="phpMyAdmin" />';
 202     }
 203     ?></a>
 204 <h1>
 205     <?php
 206     echo sprintf(__('Welcome to %s'),
 207         '<bdo dir="ltr" xml:lang="en">' . $page_title . '</bdo>');
 208     ?>
 209 </h1>
 210     <?php
 211
 212     // Show error message
 213     if (! empty($conn_error)) {
 214         PMA_Message::rawError($conn_error)->display();
 215     }
 216
 217     // Displays the languages form
 218     if (empty($GLOBALS['cfg']['Lang'])) {
 219         require_once './libraries/display_select_lang.lib.php';
 220         // use fieldset, don't show doc link
 221         PMA_select_language(true, false);
 222     }
 223
 224     ?>
 225 <br />
 226 <!-- Login form -->
 227 <form method="post" action="index.php" name="login_form"<?php echo $autocomplete; ?> target="_top" class="login">
 228     <fieldset>
 229     <legend>
 230 <?php
 231     echo __('Log in');
 232     echo '<a href="./Documentation.html" target="documentation" ' .
 233         'title="' . __('phpMyAdmin documentation') . '">';
 234     if ($GLOBALS['cfg']['ReplaceHelpImg']) {
 235         echo '<img class="icon" src="' . $GLOBALS['pmaThemeImage'] . 'b_help.png" width="11" height="11" alt="' . __('phpMyAdmin documentation') . '" />';
 236     } else {
 237         echo '(*)';
 238     }
 239     echo '</a>';
 240 ?>
 241 </legend>
 242
 243 <?php if ($GLOBALS['cfg']['AllowArbitraryServer']) { ?>
 244         <div class="item">
 245             <label for="input_servername" title="<?php echo __('You can enter hostname/IP address and port separated by space.'); ?>"><?php echo __('Server:'); ?></label>
 246             <input type="text" name="pma_servername" id="input_servername" value="<?php echo htmlspecialchars($default_server); ?>" size="24" class="textfield" title="<?php echo __('You can enter hostname/IP address and port separated by space.'); ?>" />
 247         </div>
 248 <?php } ?>
 249         <div class="item">
 250             <label for="input_username"><?php echo __('Username:'); ?></label>
 251             <input type="text" name="pma_username" id="input_username" value="<?php echo htmlspecialchars($default_user); ?>" size="24" class="textfield"/>
 252         </div>
 253         <div class="item">
 254             <label for="input_password"><?php echo __('Password:'); ?></label>
 255             <input type="password" name="pma_password" id="input_password" value="" size="24" class="textfield" />
 256         </div>
 257     <?php
 258     if (count($GLOBALS['cfg']['Servers']) > 1) {
 259         ?>
 260         <div class="item">
 261             <label for="select_server"><?php echo __('Server Choice'); ?>:</label>
 262             <select name="server" id="select_server"
 263         <?php
 264         if ($GLOBALS['cfg']['AllowArbitraryServer']) {
 265             echo ' onchange="document.forms[\'login_form\'].elements[\'pma_servername\'].value = \'\'" ';
 266         }
 267         echo '>';
 268
 269         require_once './libraries/select_server.lib.php';
 270         PMA_select_server(false, false);
 271
 272         echo '</select></div>';
 273     } else {
 274         echo '    <input type="hidden" name="server" value="' . $GLOBALS['server'] . '" />';
 275     } // end if (server choice)
 276     ?>
 277     </fieldset>
 278     <fieldset class="tblFooters">
 279         <input value="<?php echo __('Go'); ?>" type="submit" id="input_go" />
 280     <?php
 281     $_form_params = array();
 282     if (! empty($GLOBALS['target'])) {
 283         $_form_params['target'] = $GLOBALS['target'];
 284     }
 285     if (! empty($GLOBALS['db'])) {
 286         $_form_params['db'] = $GLOBALS['db'];
 287     }
 288     if (! empty($GLOBALS['table'])) {
 289         $_form_params['table'] = $GLOBALS['table'];
 290     }
 291     // do not generate a "server" hidden field as we want the "server"
 292     // drop-down to have priority
 293     echo PMA_generate_common_hidden_inputs($_form_params, '', 0, 'server');
 294     ?>
 295     </fieldset>
 296 </form>
 297
 298     <?php
 299
 300     // BEGIN Swekey Integration
 301     Swekey_login('input_username', 'input_go');
 302     // END Swekey Integration
 303
 304     // show the "Cookies required" message only if cookies are disabled
 305     // (we previously tried to set some cookies)
 306     if (empty($_COOKIE)) {
 307         trigger_error(__('Cookies must be enabled past this point.'), E_USER_NOTICE);
 308     }
 309     if ($GLOBALS['error_handler']->hasDisplayErrors()) {
 310         echo '<div>';
 311         $GLOBALS['error_handler']->dispErrors();
 312         echo '</div>';
 313     }
 314     ?>
 315 </div>
 316     <?php
 317     if (file_exists(CUSTOM_FOOTER_FILE)) {
 318         require CUSTOM_FOOTER_FILE;
 319     }
 320     ?>
 321 </body>
 322 </html>
 323     <?php
 324     exit;
 325 } // end of the 'PMA_auth()' function
 326
 327
 328
 329 /**
 330  * Gets advanced authentication settings
 331  *
 332  * this function DOES NOT check authentication - it just checks/provides
 333  * authentication credentials required to connect to the MySQL server
 334  * usually with PMA_DBI_connect()
 335  *
 336  * it returns false if something is missing - which usually leads to
 337  * PMA_auth() which displays login form
 338  *
 339  * it returns true if all seems ok which usually leads to PMA_auth_set_user()
 340  *
 341  * it directly switches to PMA_auth_fails() if user inactivity timout is reached
 342  *
 343  * @todo    AllowArbitraryServer on does not imply that the user wants an
 344  *          arbitrary server, or? so we should also check if this is filled and
 345  *          not only if allowed
 346  * @uses    $GLOBALS['PHP_AUTH_USER']
 347  * @uses    $GLOBALS['PHP_AUTH_PW']
 348  * @uses    $GLOBALS['no_activity']
 349  * @uses    $GLOBALS['server']
 350  * @uses    $GLOBALS['from_cookie']
 351  * @uses    $GLOBALS['pma_auth_server']
 352  * @uses    $cfg['AllowArbitraryServer']
 353  * @uses    $cfg['LoginCookieValidity']
 354  * @uses    $cfg['Servers']
 355  * @uses    $_REQUEST['old_usr'] from logout link
 356  * @uses    $_REQUEST['pma_username'] from login form
 357  * @uses    $_REQUEST['pma_password'] from login form
 358  * @uses    $_REQUEST['pma_servername'] from login form
 359  * @uses    $_COOKIE
 360  * @uses    $_SESSION['last_access_time']
 361  * @uses    $GLOBALS['PMA_Config']->removeCookie()
 362  * @uses    PMA_blowfish_decrypt()
 363  * @uses    PMA_auth_fails()
 364  * @uses    time()
 365  *
 366  * @return  boolean   whether we get authentication settings or not
 367  *
 368  * @access  public
 369  */
 370 function PMA_auth_check()
 371 {
 372     // Initialization
 373     /**
 374      * @global $GLOBALS['pma_auth_server'] the user provided server to connect to
 375      */
 376     $GLOBALS['pma_auth_server'] = '';
 377
 378     $GLOBALS['PHP_AUTH_USER'] = $GLOBALS['PHP_AUTH_PW'] = '';
 379     $GLOBALS['from_cookie'] = false;
 380
 381     // BEGIN Swekey Integration
 382     if (! Swekey_auth_check()) {
 383         return false;
 384     }
 385     // END Swekey Integration
 386
 387     if (defined('PMA_CLEAR_COOKIES')) {
 388         foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
 389             $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $key);
 390             $GLOBALS['PMA_Config']->removeCookie('pmaServer-' . $key);
 391             $GLOBALS['PMA_Config']->removeCookie('pmaUser-' . $key);
 392         }
 393         return false;
 394     }
 395
 396     if (! empty($_REQUEST['old_usr'])) {
 397         // The user wants to be logged out
 398         // -> delete his choices that were stored in session
 399
 400         // according to the PHP manual we should do this before the destroy:
 401         //$_SESSION = array();
 402         // but we still need some parts of the session information
 403         // in libraries/header_meta_style.inc.php
 404
 405         session_destroy();
 406         // -> delete password cookie(s)
 407         if ($GLOBALS['cfg']['LoginCookieDeleteAll']) {
 408             foreach($GLOBALS['cfg']['Servers'] as $key => $val) {
 409                 $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $key);
 410                 if (isset($_COOKIE['pmaPass-' . $key])) {
 411                     unset($_COOKIE['pmaPass-' . $key]);
 412                 }
 413             }
 414         } else {
 415             $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $GLOBALS['server']);
 416             if (isset($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
 417                 unset($_COOKIE['pmaPass-' . $GLOBALS['server']]);
 418             }
 419         }
 420     }
 421
 422     if (! empty($_REQUEST['pma_username'])) {
 423         // The user just logged in
 424         $GLOBALS['PHP_AUTH_USER'] = $_REQUEST['pma_username'];
 425         $GLOBALS['PHP_AUTH_PW']   = empty($_REQUEST['pma_password']) ? '' : $_REQUEST['pma_password'];
 426         if ($GLOBALS['cfg']['AllowArbitraryServer'] && isset($_REQUEST['pma_servername'])) {
 427             $GLOBALS['pma_auth_server'] = $_REQUEST['pma_servername'];
 428         }
 429         return true;
 430     }
 431
 432     // At the end, try to set the $GLOBALS['PHP_AUTH_USER']
 433     // and $GLOBALS['PHP_AUTH_PW'] variables from cookies
 434
 435     // servername
 436     if ($GLOBALS['cfg']['AllowArbitraryServer']
 437      && ! empty($_COOKIE['pmaServer-' . $GLOBALS['server']])) {
 438         $GLOBALS['pma_auth_server'] = $_COOKIE['pmaServer-' . $GLOBALS['server']];
 439     }
 440
 441     // username
 442     if (empty($_COOKIE['pmaUser-' . $GLOBALS['server']])) {
 443         return false;
 444     }
 445
 446     $GLOBALS['PHP_AUTH_USER'] = PMA_blowfish_decrypt(
 447         $_COOKIE['pmaUser-' . $GLOBALS['server']],
 448         PMA_get_blowfish_secret());
 449
 450     // user was never logged in since session start
 451     if (empty($_SESSION['last_access_time'])) {
 452         return false;
 453     }
 454
 455     // User inactive too long
 456     if ($_SESSION['last_access_time'] < time() - $GLOBALS['cfg']['LoginCookieValidity']) {
 457         PMA_cacheUnset('is_create_db_priv', true);
 458         PMA_cacheUnset('is_process_priv', true);
 459         PMA_cacheUnset('is_reload_priv', true);
 460         PMA_cacheUnset('db_to_create', true);
 461         PMA_cacheUnset('dbs_where_create_table_allowed', true);
 462         $GLOBALS['no_activity'] = true;
 463         PMA_auth_fails();
 464         exit;
 465     }
 466
 467     // password
 468     if (empty($_COOKIE['pmaPass-' . $GLOBALS['server']])) {
 469         return false;
 470     }
 471
 472     $GLOBALS['PHP_AUTH_PW'] = PMA_blowfish_decrypt(
 473         $_COOKIE['pmaPass-' . $GLOBALS['server']],
 474         PMA_get_blowfish_secret());
 475
 476     if ($GLOBALS['PHP_AUTH_PW'] == "\xff(blank)") {
 477         $GLOBALS['PHP_AUTH_PW'] = '';
 478     }
 479
 480     $GLOBALS['from_cookie'] = true;
 481
 482     return true;
 483 } // end of the 'PMA_auth_check()' function
 484
 485
 486 /**
 487  * Set the user and password after last checkings if required
 488  *
 489  * @uses    $GLOBALS['PHP_AUTH_USER']
 490  * @uses    $GLOBALS['PHP_AUTH_PW']
 491  * @uses    $GLOBALS['server']
 492  * @uses    $GLOBALS['from_cookie']
 493  * @uses    $GLOBALS['pma_auth_server']
 494  * @uses    $cfg['Server']
 495  * @uses    $cfg['AllowArbitraryServer']
 496  * @uses    $cfg['LoginCookieStore']
 497  * @uses    $cfg['PmaAbsoluteUri']
 498  * @uses    $_SESSION['last_access_time']
 499  * @uses    PMA_COMING_FROM_COOKIE_LOGIN
 500  * @uses    $GLOBALS['PMA_Config']->setCookie()
 501  * @uses    PMA_blowfish_encrypt()
 502  * @uses    $GLOBALS['PMA_Config']->removeCookie()
 503  * @uses    PMA_sendHeaderLocation()
 504  * @uses    time()
 505  * @uses    define()
 506  * @return  boolean   always true
 507  *
 508  * @access  public
 509  */
 510 function PMA_auth_set_user()
 511 {
 512     global $cfg;
 513
 514     // Ensures valid authentication mode, 'only_db', bookmark database and
 515     // table names and relation table name are used
 516     if ($cfg['Server']['user'] != $GLOBALS['PHP_AUTH_USER']) {
 517         foreach ($cfg['Servers'] as $idx => $current) {
 518             if ($current['host'] == $cfg['Server']['host']
 519              && $current['port'] == $cfg['Server']['port']
 520              && $current['socket'] == $cfg['Server']['socket']
 521              && $current['ssl'] == $cfg['Server']['ssl']
 522              && $current['connect_type'] == $cfg['Server']['connect_type']
 523              && $current['user'] == $GLOBALS['PHP_AUTH_USER']) {
 524                 $GLOBALS['server'] = $idx;
 525                 $cfg['Server']     = $current;
 526                 break;
 527             }
 528         } // end foreach
 529     } // end if
 530
 531     if ($GLOBALS['cfg']['AllowArbitraryServer']
 532      && ! empty($GLOBALS['pma_auth_server'])) {
 533         /* Allow to specify 'host port' */
 534         $parts = explode(' ', $GLOBALS['pma_auth_server']);
 535         if (count($parts) == 2) {
 536             $tmp_host = $parts[0];
 537             $tmp_port = $parts[1];
 538         } else {
 539             $tmp_host = $GLOBALS['pma_auth_server'];
 540             $tmp_port = '';
 541         }
 542         if ($cfg['Server']['host'] != $GLOBALS['pma_auth_server']) {
 543             $cfg['Server']['host'] = $tmp_host;
 544             if (!empty($tmp_port)) {
 545                 $cfg['Server']['port'] = $tmp_port;
 546             }
 547         }
 548         unset($tmp_host, $tmp_port, $parts);
 549     }
 550     $cfg['Server']['user']     = $GLOBALS['PHP_AUTH_USER'];
 551     $cfg['Server']['password'] = $GLOBALS['PHP_AUTH_PW'];
 552
 553     $_SESSION['last_access_time'] = time();
 554
 555     // Name and password cookies need to be refreshed each time
 556     // Duration = one month for username
 557     $GLOBALS['PMA_Config']->setCookie('pmaUser-' . $GLOBALS['server'],
 558         PMA_blowfish_encrypt($cfg['Server']['user'],
 559             PMA_get_blowfish_secret()));
 560
 561     // Duration = as configured
 562     $GLOBALS['PMA_Config']->setCookie('pmaPass-' . $GLOBALS['server'],
 563         PMA_blowfish_encrypt(!empty($cfg['Server']['password']) ? $cfg['Server']['password'] : "\xff(blank)",
 564             PMA_get_blowfish_secret()),
 565         null,
 566         $GLOBALS['cfg']['LoginCookieStore']);
 567
 568     // Set server cookies if required (once per session) and, in this case, force
 569     // reload to ensure the client accepts cookies
 570     if (! $GLOBALS['from_cookie']) {
 571         if ($GLOBALS['cfg']['AllowArbitraryServer']) {
 572             if (! empty($GLOBALS['pma_auth_server'])) {
 573                 // Duration = one month for servername
 574                 $GLOBALS['PMA_Config']->setCookie('pmaServer-' . $GLOBALS['server'], $cfg['Server']['host']);
 575             } else {
 576                 // Delete servername cookie
 577                 $GLOBALS['PMA_Config']->removeCookie('pmaServer-' . $GLOBALS['server']);
 578             }
 579         }
 580
 581         // URL where to go:
 582         $redirect_url = $cfg['PmaAbsoluteUri'] . 'index.php';
 583
 584         // any parameters to pass?
 585         $url_params = array();
 586         if (strlen($GLOBALS['db'])) {
 587             $url_params['db'] = $GLOBALS['db'];
 588         }
 589         if (strlen($GLOBALS['table'])) {
 590             $url_params['table'] = $GLOBALS['table'];
 591         }
 592         // any target to pass?
 593         if (! empty($GLOBALS['target']) && $GLOBALS['target'] != 'index.php') {
 594             $url_params['target'] = $GLOBALS['target'];
 595         }
 596
 597         /**
 598          * whether we come from a fresh cookie login
 599          */
 600         define('PMA_COMING_FROM_COOKIE_LOGIN', true);
 601         PMA_sendHeaderLocation($redirect_url . PMA_generate_common_url($url_params, '&'));
 602         exit();
 603     } // end if
 604
 605     return true;
 606 } // end of the 'PMA_auth_set_user()' function
 607
 608
 609 /**
 610  * User is not allowed to login to MySQL -> authentication failed
 611  *
 612  * prepares error message and switches to PMA_auth() which display the error
 613  * and the login form
 614  *
 615  * this function MUST exit/quit the application,
 616  * currently doen by call to PMA_auth()
 617  *
 618  * @uses    $GLOBALS['server']
 619  * @uses    $GLOBALS['allowDeny_forbidden']
 620  * @uses    $GLOBALS['no_activity']
 621  * @uses    $cfg['LoginCookieValidity']
 622  * @uses    $GLOBALS['PMA_Config']->removeCookie()
 623  * @uses    PMA_getenv()
 624  * @uses    PMA_DBI_getError()
 625  * @uses    PMA_sanitize()
 626  * @uses    PMA_auth()
 627  * @uses    sprintf()
 628  * @uses    basename()
 629  * @access  public
 630  */
 631 function PMA_auth_fails()
 632 {
 633     global $conn_error;
 634
 635     // Deletes password cookie and displays the login form
 636     $GLOBALS['PMA_Config']->removeCookie('pmaPass-' . $GLOBALS['server']);
 637
 638     if (! empty($GLOBALS['login_without_password_is_forbidden'])) {
 639         $conn_error = __('Login without a password is forbidden by configuration (see AllowNoPassword)');
 640     } elseif (! empty($GLOBALS['allowDeny_forbidden'])) {
 641         $conn_error = __('Access denied');
 642     } elseif (! empty($GLOBALS['no_activity'])) {
 643         $conn_error = sprintf(__('No activity within %s seconds; please log in again'), $GLOBALS['cfg']['LoginCookieValidity']);
 644         // Remember where we got timeout to return on same place
 645         if (PMA_getenv('SCRIPT_NAME')) {
 646             $GLOBALS['target'] = basename(PMA_getenv('SCRIPT_NAME'));
 647             // avoid "missing parameter: field" on re-entry
 648             if ('tbl_alter.php' == $GLOBALS['target']) {
 649                 $GLOBALS['target'] = 'tbl_structure.php';
 650             }
 651         }
 652     } elseif (PMA_DBI_getError()) {
 653         $conn_error = '#' . $GLOBALS['errno'] . ' ' . __('Cannot log in to the MySQL server');
 654     } else {
 655         $conn_error = __('Cannot log in to the MySQL server');
 656     }
 657
 658     // needed for PHP-CGI (not need for FastCGI or mod-php)
 659     header('Cache-Control: no-store, no-cache, must-revalidate');
 660     header('Pragma: no-cache');
 661
 662     PMA_auth();
 663 } // end of the 'PMA_auth_fails()' function
 664
 665 ?>