libraries/db_table_exists.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Ensure the database and the table exist (else move to the "parent" script)
   5  * and display headers
   6  *
   7  * @package PhpMyAdmin
   8  */
   9 if (! defined('PHPMYADMIN')) {
  10     exit;
  11 }
  12
  13 if (empty($is_db)) {
  14     if (strlen($db)) {
  15         $is_db = @$GLOBALS['dbi']->selectDb($db);
  16     } else {
  17         $is_db = false;
  18     }
  19
  20     if (! $is_db) {
  21         // not a valid db name -> back to the welcome page
  22         if (! defined('IS_TRANSFORMATION_WRAPPER')) {
  23             $response = PMA_Response::getInstance();
  24             if ($response->isAjax()) {
  25                 $response->isSuccess(false);
  26                 $response->addJSON(
  27                     'message',
  28                     PMA_Message::error(__('No databases selected.'))
  29                 );
  30             } else {
  31                 $url_params = array('reload' => 1);
  32                 if (isset($message)) {
  33                     $url_params['message'] = $message;
  34                 }
  35                 if (! empty($sql_query)) {
  36                     $url_params['sql_query'] = $sql_query;
  37                 }
  38                 if (isset($show_as_php)) {
  39                     $url_params['show_as_php'] = $show_as_php;
  40                 }
  41                 PMA_sendHeaderLocation(
  42                     $cfg['PmaAbsoluteUri'] . 'index.php'
  43                     . PMA_URL_getCommon($url_params, '&')
  44                 );
  45             }
  46             exit;
  47         }
  48     }
  49 } // end if (ensures db exists)
  50
  51 if (empty($is_table)
  52     && !defined('PMA_SUBMIT_MULT')
  53     && ! defined('TABLE_MAY_BE_ABSENT')
  54 ) {
  55     // Not a valid table name -> back to the db_sql.php
  56
  57     if (strlen($table)) {
  58         $is_table = isset(PMA_Table::$cache[$db][$table]);
  59
  60         if (! $is_table) {
  61             $_result = $GLOBALS['dbi']->tryQuery(
  62                 'SHOW TABLES LIKE \'' . PMA_Util::sqlAddSlashes($table, true)
  63                 . '\';',
  64                 null, PMA_DatabaseInterface::QUERY_STORE
  65             );
  66             $is_table = @$GLOBALS['dbi']->numRows($_result);
  67             $GLOBALS['dbi']->freeResult($_result);
  68         }
  69     } else {
  70         $is_table = false;
  71     }
  72
  73     if (! $is_table) {
  74         if (! defined('IS_TRANSFORMATION_WRAPPER')) {
  75             if (strlen($table)) {
  76                 // SHOW TABLES doesn't show temporary tables, so try select
  77                 // (as it can happen just in case temporary table, it should be
  78                 // fast):
  79
  80                 /**
  81                  * @todo should this check really
  82                  * only happen if IS_TRANSFORMATION_WRAPPER?
  83                  */
  84                 $_result = $GLOBALS['dbi']->tryQuery(
  85                     'SELECT COUNT(*) FROM ' . PMA_Util::backquote($table) . ';',
  86                     null,
  87                     PMA_DatabaseInterface::QUERY_STORE
  88                 );
  89                 $is_table = ($_result && @$GLOBALS['dbi']->numRows($_result));
  90                 $GLOBALS['dbi']->freeResult($_result);
  91             }
  92
  93             if (! $is_table) {
  94                 include './db_sql.php';
  95                 exit;
  96             }
  97         }
  98
  99         if (! $is_table) {
 100             exit;
 101         }
 102     }
 103 } // end if (ensures table exists)
 104 ?>