libraries/common.inc.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Misc stuff and REQUIRED by ALL the scripts.
   5  * MUST be included by every script
   6  *
   7  * Among other things, it contains the advanced authentication work.
   8  *
   9  * Order of sections for common.inc.php:
  10  *
  11  * the authentication libraries must be before the connection to db
  12  *
  13  * ... so the required order is:
  14  *
  15  * LABEL_variables_init
  16  *  - initialize some variables always needed
  17  * LABEL_parsing_config_file
  18  *  - parsing of the configuration file
  19  * LABEL_loading_language_file
  20  *  - loading language file
  21  * LABEL_setup_servers
  22  *  - check and setup configured servers
  23  * LABEL_theme_setup
  24  *  - setting up themes
  25  *
  26  * - load of MySQL extension (if necessary)
  27  * - loading of an authentication library
  28  * - db connection
  29  * - authentication work
  30  *
  31  * @package phpMyAdmin
  32  */
  33
  34 /**
  35  * Minimum PHP version; can't call PMA_fatalError() which uses a
  36  * PHP 5 function, so cannot easily localize this message.
  37  */
  38 if (version_compare(PHP_VERSION, '5.2.0', 'lt')) {
  39     die('PHP 5.2+ is required');
  40 }
  41
  42 /**
  43   * Backward compatibility for PHP 5.2
  44   */
  45 if (!defined('E_DEPRECATED')) {
  46     define('E_DEPRECATED', 8192);
  47 }
  48
  49 /**
  50  * the error handler
  51  */
  52 require './libraries/Error_Handler.class.php';
  53
  54 /**
  55  * initialize the error handler
  56  */
  57 $GLOBALS['error_handler'] = new PMA_Error_Handler();
  58 $cfg['Error_Handler']['display'] = TRUE;
  59
  60 /*
  61  * This setting was removed in PHP 5.3. But at this point PMA_PHP_INT_VERSION
  62  * is not yet defined so we use another way to find out the PHP version.
  63  */
  64 if (version_compare(phpversion(), '5.3', 'lt')) {
  65     /**
  66      * Avoid object cloning errors
  67      */
  68     @ini_set('zend.ze1_compatibility_mode', false);
  69 }
  70
  71 /**
  72  * Avoid problems with magic_quotes_runtime
  73  * (in the future, this setting will be removed but it's not yet
  74  * known in which PHP version)
  75  */
  76 @ini_set('magic_quotes_runtime', false);
  77
  78 /**
  79  * for verification in all procedural scripts under libraries
  80  */
  81 define('PHPMYADMIN', true);
  82
  83 /**
  84  * core functions
  85  */
  86 require './libraries/core.lib.php';
  87
  88 /**
  89  * Input sanitizing
  90  */
  91 require './libraries/sanitizing.lib.php';
  92
  93 /**
  94  * the PMA_Theme class
  95  */
  96 require './libraries/Theme.class.php';
  97
  98 /**
  99  * the PMA_Theme_Manager class
 100  */
 101 require './libraries/Theme_Manager.class.php';
 102
 103 /**
 104  * the PMA_Config class
 105  */
 106 require './libraries/Config.class.php';
 107
 108 /**
 109  * the relation lib, tracker needs it
 110  */
 111 require './libraries/relation.lib.php';
 112
 113 /**
 114  * the PMA_Tracker class
 115  */
 116 require './libraries/Tracker.class.php';
 117
 118 /**
 119  * the PMA_Table class
 120  */
 121 require './libraries/Table.class.php';
 122
 123 if (!defined('PMA_MINIMUM_COMMON')) {
 124     /**
 125      * common functions
 126      */
 127     require_once './libraries/common.lib.php';
 128
 129     /**
 130      * Java script escaping.
 131      */
 132     require_once './libraries/js_escape.lib.php';
 133
 134     /**
 135      * Include URL/hidden inputs generating.
 136      */
 137     require_once './libraries/url_generating.lib.php';
 138 }
 139
 140 /******************************************************************************/
 141 /* start procedural code                       label_start_procedural         */
 142
 143 /**
 144  * protect against possible exploits - there is no need to have so much variables
 145  */
 146 if (count($_REQUEST) > 1000) {
 147     die('possible exploit');
 148 }
 149
 150 /**
 151  * Check for numeric keys
 152  * (if register_globals is on, numeric key can be found in $GLOBALS)
 153  */
 154 foreach ($GLOBALS as $key => $dummy) {
 155     if (is_numeric($key)) {
 156         die('numeric key detected');
 157     }
 158 }
 159 unset($dummy);
 160
 161 /**
 162  * PATH_INFO could be compromised if set, so remove it from PHP_SELF
 163  * and provide a clean PHP_SELF here
 164  */
 165 $PMA_PHP_SELF = PMA_getenv('PHP_SELF');
 166 $_PATH_INFO = PMA_getenv('PATH_INFO');
 167 if (! empty($_PATH_INFO) && ! empty($PMA_PHP_SELF)) {
 168     $path_info_pos = strrpos($PMA_PHP_SELF, $_PATH_INFO);
 169     if ($path_info_pos + strlen($_PATH_INFO) === strlen($PMA_PHP_SELF)) {
 170         $PMA_PHP_SELF = substr($PMA_PHP_SELF, 0, $path_info_pos);
 171     }
 172 }
 173 $PMA_PHP_SELF = htmlspecialchars($PMA_PHP_SELF);
 174
 175
 176 /**
 177  * just to be sure there was no import (registering) before here
 178  * we empty the global space (but avoid unsetting $variables_list
 179  * and $key in the foreach(), we still need them!)
 180  */
 181 $variables_whitelist = array (
 182     'GLOBALS',
 183     '_SERVER',
 184     '_GET',
 185     '_POST',
 186     '_REQUEST',
 187     '_FILES',
 188     '_ENV',
 189     '_COOKIE',
 190     '_SESSION',
 191     'error_handler',
 192     'PMA_PHP_SELF',
 193     'variables_whitelist',
 194     'key'
 195 );
 196
 197 foreach (get_defined_vars() as $key => $value) {
 198     if (! in_array($key, $variables_whitelist)) {
 199         unset($$key);
 200     }
 201 }
 202 unset($key, $value, $variables_whitelist);
 203
 204
 205 /**
 206  * Subforms - some functions need to be called by form, cause of the limited URL
 207  * length, but if this functions inside another form you cannot just open a new
 208  * form - so phpMyAdmin uses 'arrays' inside this form
 209  *
 210  * <code>
 211  * <form ...>
 212  * ... main form elments ...
 213  * <input type="hidden" name="subform[action1][id]" value="1" />
 214  * ... other subform data ...
 215  * <input type="submit" name="usesubform[action1]" value="do action1" />
 216  * ... other subforms ...
 217  * <input type="hidden" name="subform[actionX][id]" value="X" />
 218  * ... other subform data ...
 219  * <input type="submit" name="usesubform[actionX]" value="do actionX" />
 220  * ... main form elments ...
 221  * <input type="submit" name="main_action" value="submit form" />
 222  * </form>
 223  * </code>
 224  *
 225  * so we now check if a subform is submitted
 226  */
 227 $__redirect = null;
 228 if (isset($_POST['usesubform'])) {
 229     // if a subform is present and should be used
 230     // the rest of the form is deprecated
 231     $subform_id = key($_POST['usesubform']);
 232     $subform    = $_POST['subform'][$subform_id];
 233     $_POST      = $subform;
 234     $_REQUEST   = $subform;
 235     /**
 236      * some subforms need another page than the main form, so we will just
 237      * include this page at the end of this script - we use $__redirect to
 238      * track this
 239      */
 240     if (isset($_POST['redirect'])
 241       && $_POST['redirect'] != basename($PMA_PHP_SELF)) {
 242         $__redirect = $_POST['redirect'];
 243         unset($_POST['redirect']);
 244     }
 245     unset($subform_id, $subform);
 246 } else {
 247     // Note: here we overwrite $_REQUEST so that it does not contain cookies,
 248     // because another application for the same domain could have set
 249     // a cookie (with a compatible path) that overrides a variable
 250     // we expect from GET or POST.
 251     // We'll refer to cookies explicitly with the $_COOKIE syntax.
 252     $_REQUEST = array_merge($_GET, $_POST);
 253 }
 254 // end check if a subform is submitted
 255
 256 // remove quotes added by php
 257 if (function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc()) {
 258     PMA_arrayWalkRecursive($_GET, 'stripslashes', true);
 259     PMA_arrayWalkRecursive($_POST, 'stripslashes', true);
 260     PMA_arrayWalkRecursive($_COOKIE, 'stripslashes', true);
 261     PMA_arrayWalkRecursive($_REQUEST, 'stripslashes', true);
 262 }
 263
 264 /**
 265  * include deprecated grab_globals only if required
 266  */
 267 if (empty($__redirect) && !defined('PMA_NO_VARIABLES_IMPORT')) {
 268     require './libraries/grab_globals.lib.php';
 269 }
 270
 271 /**
 272  * check timezone setting
 273  * this could produce an E_STRICT - but only once,
 274  * if not done here it will produce E_STRICT on every date/time function
 275  *
 276  * @todo need to decide how we should handle this (without @)
 277  */
 278 date_default_timezone_set(@date_default_timezone_get());
 279
 280 /******************************************************************************/
 281 /* parsing configuration file                         LABEL_parsing_config_file      */
 282
 283 /**
 284  * We really need this one!
 285  */
 286 if (! function_exists('preg_replace')) {
 287     PMA_warnMissingExtension('pcre', true);
 288 }
 289
 290 /**
 291  * @global PMA_Config $GLOBALS['PMA_Config']
 292  * force reading of config file, because we removed sensitive values
 293  * in the previous iteration
 294  */
 295 $GLOBALS['PMA_Config'] = new PMA_Config(CONFIG_FILE);
 296
 297 if (!defined('PMA_MINIMUM_COMMON')) {
 298     $GLOBALS['PMA_Config']->checkPmaAbsoluteUri();
 299 }
 300
 301 /**
 302  * BC - enable backward compatibility
 303  * exports all configuration settings into $GLOBALS ($GLOBALS['cfg'])
 304  */
 305 $GLOBALS['PMA_Config']->enableBc();
 306
 307 /**
 308  * clean cookies on upgrade
 309  * when changing something related to PMA cookies, increment the cookie version
 310  */
 311 $pma_cookie_version = 4;
 312 if (isset($_COOKIE)
 313  && (isset($_COOKIE['pmaCookieVer'])
 314   && $_COOKIE['pmaCookieVer'] < $pma_cookie_version)) {
 315     // delete all cookies
 316     foreach($_COOKIE as $cookie_name => $tmp) {
 317         $GLOBALS['PMA_Config']->removeCookie($cookie_name);
 318     }
 319     $_COOKIE = array();
 320     $GLOBALS['PMA_Config']->setCookie('pmaCookieVer', $pma_cookie_version);
 321 }
 322
 323
 324 /**
 325  * check HTTPS connection
 326  */
 327 if ($GLOBALS['PMA_Config']->get('ForceSSL')
 328   && !$GLOBALS['PMA_Config']->get('is_https')) {
 329     PMA_sendHeaderLocation(
 330         preg_replace('/^http/', 'https',
 331             $GLOBALS['PMA_Config']->get('PmaAbsoluteUri'))
 332         . PMA_generate_common_url($_GET, 'text'));
 333     // delete the current session, otherwise we get problems (see bug #2397877)
 334     $GLOBALS['PMA_Config']->removeCookie($GLOBALS['session_name']);
 335     exit;
 336 }
 337
 338
 339 /**
 340  * include session handling after the globals, to prevent overwriting
 341  */
 342 require './libraries/session.inc.php';
 343
 344 /**
 345  * init some variables LABEL_variables_init
 346  */
 347
 348 /**
 349  * holds parameters to be passed to next page
 350  * @global array $GLOBALS['url_params']
 351  */
 352 $GLOBALS['url_params'] = array();
 353
 354 /**
 355  * the whitelist for $GLOBALS['goto']
 356  * @global array $goto_whitelist
 357  */
 358 $goto_whitelist = array(
 359     //'browse_foreigners.php',
 360     //'calendar.php',
 361     //'changelog.php',
 362     //'chk_rel.php',
 363     'db_create.php',
 364     'db_datadict.php',
 365     'db_sql.php',
 366     'db_export.php',
 367     'db_importdocsql.php',
 368     'db_qbe.php',
 369     'db_structure.php',
 370     'db_import.php',
 371     'db_operations.php',
 372     'db_printview.php',
 373     'db_search.php',
 374     //'Documentation.html',
 375     'export.php',
 376     'import.php',
 377     //'index.php',
 378     //'navigation.php',
 379     //'license.php',
 380     'main.php',
 381     'pdf_pages.php',
 382     'pdf_schema.php',
 383     //'phpinfo.php',
 384     'querywindow.php',
 385     //'readme.php',
 386     'server_binlog.php',
 387     'server_collations.php',
 388     'server_databases.php',
 389     'server_engines.php',
 390     'server_export.php',
 391     'server_import.php',
 392     'server_privileges.php',
 393     'server_processlist.php',
 394     'server_sql.php',
 395     'server_status.php',
 396     'server_variables.php',
 397     'sql.php',
 398     'tbl_addfield.php',
 399     'tbl_alter.php',
 400     'tbl_change.php',
 401     'tbl_create.php',
 402     'tbl_import.php',
 403     'tbl_indexes.php',
 404     'tbl_move_copy.php',
 405     'tbl_printview.php',
 406     'tbl_sql.php',
 407     'tbl_export.php',
 408     'tbl_operations.php',
 409     'tbl_structure.php',
 410     'tbl_relation.php',
 411     'tbl_replace.php',
 412     'tbl_row_action.php',
 413     'tbl_select.php',
 414     //'themes.php',
 415     'transformation_overview.php',
 416     'transformation_wrapper.php',
 417     'user_password.php',
 418 );
 419
 420 /**
 421  * check $__redirect against whitelist
 422  */
 423 if (! PMA_checkPageValidity($__redirect, $goto_whitelist)) {
 424     $__redirect = null;
 425 }
 426
 427 /**
 428  * holds page that should be displayed
 429  * @global string $GLOBALS['goto']
 430  */
 431 $GLOBALS['goto'] = '';
 432 // Security fix: disallow accessing serious server files via "?goto="
 433 if (PMA_checkPageValidity($_REQUEST['goto'], $goto_whitelist)) {
 434     $GLOBALS['goto'] = $_REQUEST['goto'];
 435     $GLOBALS['url_params']['goto'] = $_REQUEST['goto'];
 436 } else {
 437     unset($_REQUEST['goto'], $_GET['goto'], $_POST['goto'], $_COOKIE['goto']);
 438 }
 439
 440 /**
 441  * returning page
 442  * @global string $GLOBALS['back']
 443  */
 444 if (PMA_checkPageValidity($_REQUEST['back'], $goto_whitelist)) {
 445     $GLOBALS['back'] = $_REQUEST['back'];
 446 } else {
 447     unset($_REQUEST['back'], $_GET['back'], $_POST['back'], $_COOKIE['back']);
 448 }
 449
 450 /**
 451  * Check whether user supplied token is valid, if not remove any possibly
 452  * dangerous stuff from request.
 453  *
 454  * remember that some objects in the session with session_start and __wakeup()
 455  * could access this variables before we reach this point
 456  * f.e. PMA_Config: fontsize
 457  *
 458  * @todo variables should be handled by their respective owners (objects)
 459  * f.e. lang, server, collation_connection in PMA_Config
 460  */
 461 if (! PMA_isValid($_REQUEST['token']) || $_SESSION[' PMA_token '] != $_REQUEST['token']) {
 462     /**
 463      *  List of parameters which are allowed from unsafe source
 464      */
 465     $allow_list = array(
 466         /* needed for direct access, see FAQ 1.34
 467          * also, server needed for cookie login screen (multi-server)
 468          */
 469         'server', 'db', 'table', 'target',
 470         /* Session ID */
 471         'phpMyAdmin',
 472         /* Cookie preferences */
 473         'pma_lang', 'pma_collation_connection',
 474         /* Possible login form */
 475         'pma_servername', 'pma_username', 'pma_password',
 476         /* for playing blobstreamable media */
 477         'media_type', 'custom_type', 'bs_reference',
 478         /* for changing BLOB repository file MIME type */
 479         'bs_db', 'bs_table', 'bs_ref', 'bs_new_mime_type',
 480         /* URL redirector */
 481         'url'
 482     );
 483     /**
 484      * Require cleanup functions
 485      */
 486     require './libraries/cleanup.lib.php';
 487     /**
 488      * Do actual cleanup
 489      */
 490     PMA_remove_request_vars($allow_list);
 491
 492 }
 493
 494
 495 /**
 496  * current selected database
 497  * @global string $GLOBALS['db']
 498  */
 499 $GLOBALS['db'] = '';
 500 if (PMA_isValid($_REQUEST['db'])) {
 501     // can we strip tags from this?
 502     // only \ and / is not allowed in db names for MySQL
 503     $GLOBALS['db'] = $_REQUEST['db'];
 504     $GLOBALS['url_params']['db'] = $GLOBALS['db'];
 505 }
 506
 507 /**
 508  * current selected table
 509  * @global string $GLOBALS['table']
 510  */
 511 $GLOBALS['table'] = '';
 512 if (PMA_isValid($_REQUEST['table'])) {
 513     // can we strip tags from this?
 514     // only \ and / is not allowed in table names for MySQL
 515     $GLOBALS['table'] = $_REQUEST['table'];
 516     $GLOBALS['url_params']['table'] = $GLOBALS['table'];
 517 }
 518
 519 /**
 520  * SQL query to be executed
 521  * @global string $GLOBALS['sql_query']
 522  */
 523 $GLOBALS['sql_query'] = '';
 524 if (PMA_isValid($_REQUEST['sql_query'])) {
 525     $GLOBALS['sql_query'] = $_REQUEST['sql_query'];
 526 }
 527
 528 /**
 529  * avoid problems in phpmyadmin.css.php in some cases
 530  * @global string $js_frame
 531  */
 532 $_REQUEST['js_frame'] = PMA_ifSetOr($_REQUEST['js_frame'], '');
 533
 534 //$_REQUEST['set_theme'] // checked later in this file LABEL_theme_setup
 535 //$_REQUEST['server']; // checked later in this file
 536 //$_REQUEST['lang'];   // checked by LABEL_loading_language_file
 537
 538
 539 /**
 540  * holds name of JavaScript files to be included in HTML header
 541  * @global array $js_include
 542  */
 543 $GLOBALS['js_include'] = array();
 544 $GLOBALS['js_include'][] = 'jquery/jquery-1.4.4.js';
 545 $GLOBALS['js_include'][] = 'update-location.js';
 546
 547 /**
 548  * Add common jQuery functions script here if necessary.
 549  */
 550
 551 /**
 552  * JavaScript events that will be registered
 553  * @global array $js_events
 554  */
 555 $GLOBALS['js_events'] = array();
 556
 557 /**
 558  * footnotes to be displayed ot the page bottom
 559  * @global array $footnotes
 560  */
 561 $GLOBALS['footnotes'] = array();
 562
 563 /******************************************************************************/
 564 /* loading language file                       LABEL_loading_language_file    */
 565
 566 /**
 567  * lang detection is done here
 568  */
 569 require './libraries/select_lang.lib.php';
 570
 571 /**
 572  * check for errors occurred while loading configuration
 573  * this check is done here after loading language files to present errors in locale
 574  */
 575 if ($GLOBALS['PMA_Config']->error_config_file) {
 576     $error = __('phpMyAdmin was unable to read your configuration file!<br />This might happen if PHP finds a parse error in it or PHP cannot find the file.<br />Please call the configuration file directly using the link below and read the PHP error message(s) that you receive. In most cases a quote or a semicolon is missing somewhere.<br />If you receive a blank page, everything is fine.')
 577         . '<br /><br />'
 578         . ($GLOBALS['PMA_Config']->getSource() == CONFIG_FILE ?
 579         '<a href="show_config_errors.php"'
 580         .' target="_blank">' . $GLOBALS['PMA_Config']->getSource() . '</a>'
 581         :
 582         '<a href="' . $GLOBALS['PMA_Config']->getSource() . '"'
 583         .' target="_blank">' . $GLOBALS['PMA_Config']->getSource() . '</a>');
 584     trigger_error($error, E_USER_ERROR);
 585 }
 586 if ($GLOBALS['PMA_Config']->error_config_default_file) {
 587     $error = sprintf(__('Could not load default configuration from: %1$s'),
 588         $GLOBALS['PMA_Config']->default_source);
 589     trigger_error($error, E_USER_ERROR);
 590 }
 591 if ($GLOBALS['PMA_Config']->error_pma_uri) {
 592     trigger_error(__('The <tt>$cfg[\'PmaAbsoluteUri\']</tt> directive MUST be set in your configuration file!'), E_USER_ERROR);
 593 }
 594
 595
 596 /******************************************************************************/
 597 /* setup servers                                       LABEL_setup_servers    */
 598
 599 /**
 600  * current server
 601  * @global integer $GLOBALS['server']
 602  */
 603 $GLOBALS['server'] = 0;
 604
 605 /**
 606  * Servers array fixups.
 607  * $default_server comes from PMA_Config::enableBc()
 608  * @todo merge into PMA_Config
 609  */
 610 // Do we have some server?
 611 if (!isset($cfg['Servers']) || count($cfg['Servers']) == 0) {
 612     // No server => create one with defaults
 613     $cfg['Servers'] = array(1 => $default_server);
 614 } else {
 615     // We have server(s) => apply default configuration
 616     $new_servers = array();
 617
 618     foreach ($cfg['Servers'] as $server_index => $each_server) {
 619
 620         // Detect wrong configuration
 621         if (!is_int($server_index) || $server_index < 1) {
 622             trigger_error(sprintf(__('Invalid server index: %s'), $server_index), E_USER_ERROR);
 623         }
 624
 625         $each_server = array_merge($default_server, $each_server);
 626
 627         // Don't use servers with no hostname
 628         if ($each_server['connect_type'] == 'tcp' && empty($each_server['host'])) {
 629             trigger_error(sprintf(__('Invalid hostname for server %1$s. Please review your configuration.'), $server_index), E_USER_ERROR);
 630         }
 631
 632         // Final solution to bug #582890
 633         // If we are using a socket connection
 634         // and there is nothing in the verbose server name
 635         // or the host field, then generate a name for the server
 636         // in the form of "Server 2", localized of course!
 637         if ($each_server['connect_type'] == 'socket' && empty($each_server['host']) && empty($each_server['verbose'])) {
 638             $each_server['verbose'] = __('Server') . $server_index;
 639         }
 640
 641         $new_servers[$server_index] = $each_server;
 642     }
 643     $cfg['Servers'] = $new_servers;
 644     unset($new_servers, $server_index, $each_server);
 645 }
 646
 647 // Cleanup
 648 unset($default_server);
 649
 650
 651 /******************************************************************************/
 652 /* setup themes                                          LABEL_theme_setup    */
 653
 654 if (isset($_REQUEST['custom_color_reset'])) {
 655     unset($_SESSION['tmp_user_values']['custom_color']);
 656 } elseif (isset($_REQUEST['custom_color'])) {
 657     $_SESSION['tmp_user_values']['custom_color'] = $_REQUEST['custom_color'];
 658 }
 659 /**
 660  * @global PMA_Theme_Manager $_SESSION['PMA_Theme_Manager']
 661  */
 662 if (! isset($_SESSION['PMA_Theme_Manager'])) {
 663     $_SESSION['PMA_Theme_Manager'] = new PMA_Theme_Manager;
 664 } else {
 665     /**
 666      * @todo move all __wakeup() functionality into session.inc.php
 667      */
 668     $_SESSION['PMA_Theme_Manager']->checkConfig();
 669 }
 670
 671 // for the theme per server feature
 672 if (isset($_REQUEST['server']) && !isset($_REQUEST['set_theme'])) {
 673     $GLOBALS['server'] = $_REQUEST['server'];
 674     $tmp = $_SESSION['PMA_Theme_Manager']->getThemeCookie();
 675     if (empty($tmp)) {
 676         $tmp = $_SESSION['PMA_Theme_Manager']->theme_default;
 677     }
 678     $_SESSION['PMA_Theme_Manager']->setActiveTheme($tmp);
 679     unset($tmp);
 680 }
 681 /**
 682  * @todo move into PMA_Theme_Manager::__wakeup()
 683  */
 684 if (isset($_REQUEST['set_theme'])) {
 685     // if user selected a theme
 686     $_SESSION['PMA_Theme_Manager']->setActiveTheme($_REQUEST['set_theme']);
 687 }
 688
 689 /**
 690  * the theme object
 691  * @global PMA_Theme $_SESSION['PMA_Theme']
 692  */
 693 $_SESSION['PMA_Theme'] = $_SESSION['PMA_Theme_Manager']->theme;
 694
 695 // BC
 696 /**
 697  * the active theme
 698  * @global string $GLOBALS['theme']
 699  */
 700 $GLOBALS['theme']           = $_SESSION['PMA_Theme']->getName();
 701 /**
 702  * the theme path
 703  * @global string $GLOBALS['pmaThemePath']
 704  */
 705 $GLOBALS['pmaThemePath']    = $_SESSION['PMA_Theme']->getPath();
 706 /**
 707  * the theme image path
 708  * @global string $GLOBALS['pmaThemeImage']
 709  */
 710 $GLOBALS['pmaThemeImage']   = $_SESSION['PMA_Theme']->getImgPath();
 711
 712 /**
 713  * load layout file if exists
 714  */
 715 if (@file_exists($_SESSION['PMA_Theme']->getLayoutFile())) {
 716     include $_SESSION['PMA_Theme']->getLayoutFile();
 717     /**
 718      * @todo remove if all themes are update use Navi instead of Left as frame name
 719      */
 720     if (! isset($GLOBALS['cfg']['NaviWidth'])
 721      && isset($GLOBALS['cfg']['LeftWidth'])) {
 722         $GLOBALS['cfg']['NaviWidth'] = $GLOBALS['cfg']['LeftWidth'];
 723     }
 724 }
 725
 726 if (! defined('PMA_MINIMUM_COMMON')) {
 727     /**
 728      * Character set conversion.
 729      */
 730     require_once './libraries/charset_conversion.lib.php';
 731
 732     /**
 733      * String handling
 734      */
 735     require_once './libraries/string.lib.php';
 736
 737     /**
 738      * Lookup server by name
 739      * (see FAQ 4.8)
 740      */
 741     if (! empty($_REQUEST['server']) && is_string($_REQUEST['server'])
 742      && ! is_numeric($_REQUEST['server'])) {
 743         foreach ($cfg['Servers'] as $i => $server) {
 744             if ($server['host'] == $_REQUEST['server']) {
 745                 $_REQUEST['server'] = $i;
 746                 break;
 747             }
 748         }
 749         if (is_string($_REQUEST['server'])) {
 750             unset($_REQUEST['server']);
 751         }
 752         unset($i);
 753     }
 754
 755     /**
 756      * If no server is selected, make sure that $cfg['Server'] is empty (so
 757      * that nothing will work), and skip server authentication.
 758      * We do NOT exit here, but continue on without logging into any server.
 759      * This way, the welcome page will still come up (with no server info) and
 760      * present a choice of servers in the case that there are multiple servers
 761      * and '$cfg['ServerDefault'] = 0' is set.
 762      */
 763
 764     if (isset($_REQUEST['server']) && (is_string($_REQUEST['server']) || is_numeric($_REQUEST['server'])) && ! empty($_REQUEST['server']) && ! empty($cfg['Servers'][$_REQUEST['server']])) {
 765         $GLOBALS['server'] = $_REQUEST['server'];
 766         $cfg['Server'] = $cfg['Servers'][$GLOBALS['server']];
 767     } else {
 768         if (!empty($cfg['Servers'][$cfg['ServerDefault']])) {
 769             $GLOBALS['server'] = $cfg['ServerDefault'];
 770             $cfg['Server'] = $cfg['Servers'][$GLOBALS['server']];
 771         } else {
 772             $GLOBALS['server'] = 0;
 773             $cfg['Server'] = array();
 774         }
 775     }
 776     $GLOBALS['url_params']['server'] = $GLOBALS['server'];
 777
 778     /**
 779      * Kanji encoding convert feature appended by Y.Kawada (2002/2/20)
 780      */
 781     if (function_exists('mb_convert_encoding')
 782      && $lang == 'ja') {
 783         require_once './libraries/kanji-encoding.lib.php';
 784         /**
 785          * enable multibyte string support
 786          */
 787         define('PMA_MULTIBYTE_ENCODING', 1);
 788     } // end if
 789
 790     /**
 791      * save some settings in cookies
 792      * @todo should be done in PMA_Config
 793      */
 794     $GLOBALS['PMA_Config']->setCookie('pma_lang', $GLOBALS['lang']);
 795     $GLOBALS['PMA_Config']->setCookie('pma_collation_connection', $GLOBALS['collation_connection']);
 796
 797     $_SESSION['PMA_Theme_Manager']->setThemeCookie();
 798
 799     if (! empty($cfg['Server'])) {
 800
 801         /**
 802          * Loads the proper database interface for this server
 803          */
 804         require_once './libraries/database_interface.lib.php';
 805
 806         require_once './libraries/logging.lib.php';
 807
 808         // get LoginCookieValidity from preferences cache
 809         // no generic solution for loading preferences from cache as some settings need to be kept
 810         // for processing in PMA_Config::loadUserPreferences()
 811         $cache_key = 'server_' . $GLOBALS['server'];
 812         if (isset($_SESSION['cache'][$cache_key]['userprefs']['LoginCookieValidity'])) {
 813             $value = $_SESSION['cache'][$cache_key]['userprefs']['LoginCookieValidity'];
 814             $GLOBALS['PMA_Config']->set('LoginCookieValidity', $value);
 815             $GLOBALS['cfg']['LoginCookieValidity'] = $value;
 816             unset($value);
 817         }
 818         unset($cache_key);
 819
 820         // Gets the authentication library that fits the $cfg['Server'] settings
 821         // and run authentication
 822
 823         // to allow HTTP or http
 824         $cfg['Server']['auth_type'] = strtolower($cfg['Server']['auth_type']);
 825         if (! file_exists('./libraries/auth/' . $cfg['Server']['auth_type'] . '.auth.lib.php')) {
 826             PMA_fatalError(__('Invalid authentication method set in configuration:') . ' ' . $cfg['Server']['auth_type']);
 827         }
 828         /**
 829          * the required auth type plugin
 830          */
 831         require_once './libraries/auth/' . $cfg['Server']['auth_type'] . '.auth.lib.php';
 832         if (!PMA_auth_check()) {
 833             /* Force generating of new session on login */
 834             PMA_secureSession();
 835             PMA_auth();
 836         } else {
 837             PMA_auth_set_user();
 838         }
 839
 840          // Check IP-based Allow/Deny rules as soon as possible to reject the
 841         // user
 842         // Based on mod_access in Apache:
 843         // http://cvs.apache.org/viewcvs.cgi/httpd-2.0/modules/aaa/mod_access.c?rev=1.37&content-type=text/vnd.viewcvs-markup
 844         // Look at: "static int check_dir_access(request_rec *r)"
 845         if (isset($cfg['Server']['AllowDeny'])
 846           && isset($cfg['Server']['AllowDeny']['order'])) {
 847
 848             /**
 849              * ip based access library
 850              */
 851             require_once './libraries/ip_allow_deny.lib.php';
 852
 853             $allowDeny_forbidden         = false; // default
 854             if ($cfg['Server']['AllowDeny']['order'] == 'allow,deny') {
 855                 $allowDeny_forbidden     = true;
 856                 if (PMA_allowDeny('allow')) {
 857                     $allowDeny_forbidden = false;
 858                 }
 859                 if (PMA_allowDeny('deny')) {
 860                     $allowDeny_forbidden = true;
 861                 }
 862             } elseif ($cfg['Server']['AllowDeny']['order'] == 'deny,allow') {
 863                 if (PMA_allowDeny('deny')) {
 864                     $allowDeny_forbidden = true;
 865                 }
 866                 if (PMA_allowDeny('allow')) {
 867                     $allowDeny_forbidden = false;
 868                 }
 869             } elseif ($cfg['Server']['AllowDeny']['order'] == 'explicit') {
 870                 if (PMA_allowDeny('allow')
 871                   && !PMA_allowDeny('deny')) {
 872                     $allowDeny_forbidden = false;
 873                 } else {
 874                     $allowDeny_forbidden = true;
 875                 }
 876             } // end if ... elseif ... elseif
 877
 878             // Ejects the user if banished
 879             if ($allowDeny_forbidden) {
 880                 PMA_log_user($cfg['Server']['user'], 'allow-denied');
 881                 PMA_auth_fails();
 882             }
 883             unset($allowDeny_forbidden); //Clean up after you!
 884         } // end if
 885
 886         // is root allowed?
 887         if (!$cfg['Server']['AllowRoot'] && $cfg['Server']['user'] == 'root') {
 888             $allowDeny_forbidden = true;
 889             PMA_log_user($cfg['Server']['user'], 'root-denied');
 890             PMA_auth_fails();
 891             unset($allowDeny_forbidden); //Clean up after you!
 892         }
 893
 894         // is a login without password allowed?
 895         if (!$cfg['Server']['AllowNoPassword'] && $cfg['Server']['password'] == '') {
 896             $login_without_password_is_forbidden = true;
 897             PMA_log_user($cfg['Server']['user'], 'empty-denied');
 898             PMA_auth_fails();
 899             unset($login_without_password_is_forbidden); //Clean up after you!
 900         }
 901
 902         // Try to connect MySQL with the control user profile (will be used to
 903         // get the privileges list for the current user but the true user link
 904         // must be open after this one so it would be default one for all the
 905         // scripts)
 906         $controllink = false;
 907         if ($cfg['Server']['controluser'] != '') {
 908             $controllink = PMA_DBI_connect($cfg['Server']['controluser'],
 909                 $cfg['Server']['controlpass'], true);
 910         }
 911
 912         // Connects to the server (validates user's login)
 913         $userlink = PMA_DBI_connect($cfg['Server']['user'],
 914             $cfg['Server']['password'], false);
 915
 916         if (! $controllink) {
 917             $controllink = $userlink;
 918         }
 919
 920         /* Log success */
 921         PMA_log_user($cfg['Server']['user']);
 922
 923         /**
 924          * with phpMyAdmin 3 we support MySQL >=5
 925          * but only production releases:
 926          *  - > 5.0.15
 927          */
 928         if (PMA_MYSQL_INT_VERSION < 50015) {
 929             PMA_fatalError(__('You should upgrade to %s %s or later.'), array('MySQL', '5.0.15'));
 930         }
 931
 932         /**
 933          * SQL Parser code
 934          */
 935         require_once './libraries/sqlparser.lib.php';
 936
 937         /**
 938          * SQL Validator interface code
 939          */
 940         require_once './libraries/sqlvalidator.lib.php';
 941
 942         /**
 943          * the PMA_List_Database class
 944          */
 945         require_once './libraries/PMA.php';
 946         $pma = new PMA;
 947         $pma->userlink = $userlink;
 948         $pma->controllink = $controllink;
 949
 950         /**
 951          * some resetting has to be done when switching servers
 952          */
 953         if (isset($_SESSION['tmp_user_values']['previous_server']) && $_SESSION['tmp_user_values']['previous_server'] != $GLOBALS['server']) {
 954             unset($_SESSION['tmp_user_values']['navi_limit_offset']);
 955         }
 956         $_SESSION['tmp_user_values']['previous_server'] = $GLOBALS['server'];
 957
 958     } // end server connecting
 959
 960     /**
 961      * check if profiling was requested and remember it
 962      * (note: when $cfg['ServerDefault'] = 0, constant is not defined)
 963      */
 964     if (isset($_REQUEST['profiling']) && PMA_profilingSupported()) {
 965         $_SESSION['profiling'] = true;
 966     } elseif (isset($_REQUEST['profiling_form'])) {
 967         // the checkbox was unchecked
 968         unset($_SESSION['profiling']);
 969     }
 970
 971     // library file for blobstreaming
 972     require_once './libraries/blobstreaming.lib.php';
 973
 974     // checks for blobstreaming plugins and databases that support
 975     // blobstreaming (by having the necessary tables for blobstreaming)
 976     checkBLOBStreamingPlugins();
 977
 978 } // end if !defined('PMA_MINIMUM_COMMON')
 979
 980 // load user preferences
 981 $GLOBALS['PMA_Config']->loadUserPreferences();
 982
 983 // remove sensitive values from session
 984 $GLOBALS['PMA_Config']->set('blowfish_secret', '');
 985 $GLOBALS['PMA_Config']->set('Servers', '');
 986 $GLOBALS['PMA_Config']->set('default_server', '');
 987
 988 /* Tell tracker that it can actually work */
 989 PMA_Tracker::enable();
 990
 991 /**
 992  * @global boolean $GLOBALS['is_ajax_request']
 993  * @todo should this be moved to the variables init section above?
 994  *
 995  * Check if the current request is an AJAX request, and set is_ajax_request
 996  * accordingly.  Suppress headers, footers and unnecessary output if set to
 997  * true
 998  */
 999 if (isset($_REQUEST['ajax_request']) && $_REQUEST['ajax_request'] == true) {
1000         $GLOBALS['is_ajax_request'] = true;
1001 } else {
1002         $GLOBALS['is_ajax_request'] = false;
1003 }
1004
1005 /**
1006  * @global  boolean $GLOBALS['inline_edit']
1007  *
1008  * Set to true if this is a request made during an inline edit process.  This
1009  * request is made to retrieve the non-truncated/transformed values.
1010  */
1011 if(isset($_REQUEST['inline_edit']) && $_REQUEST['inline_edit'] == true) {
1012     $GLOBALS['inline_edit'] = true;
1013 }
1014 else {
1015     $GLOBALS['inline_edit'] = false;
1016 }
1017
1018 if (!empty($__redirect) && in_array($__redirect, $goto_whitelist)) {
1019     /**
1020      * include subform target page
1021      */
1022     require $__redirect;
1023     exit();
1024 }
1025 ?>