tbl_export.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Table export
   5  *
   6  * @package PhpMyAdmin
   7  */
   8 declare(strict_types=1);
   9
  10 use PhpMyAdmin\Config\PageSettings;
  11 use PhpMyAdmin\Display\Export;
  12 use PhpMyAdmin\Relation;
  13 use PhpMyAdmin\Response;
  14
  15 /**
  16  *
  17  */
  18 require_once 'libraries/common.inc.php';
  19
  20 PageSettings::showGroup('Export');
  21
  22 $response = Response::getInstance();
  23 $header   = $response->getHeader();
  24 $scripts  = $header->getScripts();
  25 $scripts->addFile('export.js');
  26
  27 // Get the relation settings
  28 $relation = new Relation($GLOBALS['dbi']);
  29 $cfgRelation = $relation->getRelationsParam();
  30
  31 $displayExport = new Export();
  32
  33 // handling export template actions
  34 if (isset($_REQUEST['templateAction']) && $cfgRelation['exporttemplateswork']) {
  35     $displayExport->handleTemplateActions($cfgRelation);
  36     exit;
  37 }
  38
  39 /**
  40  * Gets tables information and displays top links
  41  */
  42 require_once 'libraries/tbl_common.inc.php';
  43 $url_query .= '&amp;goto=tbl_export.php&amp;back=tbl_export.php';
  44
  45 // Dump of a table
  46
  47 $export_page_title = __('View dump (schema) of table');
  48
  49 // When we have some query, we need to remove LIMIT from that and possibly
  50 // generate WHERE clause (if we are asked to export specific rows)
  51
  52 if (! empty($sql_query)) {
  53     $parser = new PhpMyAdmin\SqlParser\Parser($sql_query);
  54
  55     if ((!empty($parser->statements[0]))
  56         && ($parser->statements[0] instanceof PhpMyAdmin\SqlParser\Statements\SelectStatement)
  57     ) {
  58         // Finding aliases and removing them, but we keep track of them to be
  59         // able to replace them in select expression too.
  60         $aliases = [];
  61         foreach ($parser->statements[0]->from as $from) {
  62             if ((!empty($from->table)) && (!empty($from->alias))) {
  63                 $aliases[$from->alias] = $from->table;
  64                 // We remove the alias of the table because they are going to
  65                 // be replaced anyway.
  66                 $from->alias = null;
  67                 $from->expr = null; // Force rebuild.
  68             }
  69         }
  70
  71         // Rebuilding the SELECT and FROM clauses.
  72         if (count($parser->statements[0]->from) > 0
  73             && count($parser->statements[0]->union) === 0
  74         ) {
  75             $replaces = [
  76                 [
  77                     'FROM', 'FROM ' . PhpMyAdmin\SqlParser\Components\ExpressionArray::build(
  78                         $parser->statements[0]->from
  79                     ),
  80                 ],
  81             ];
  82         }
  83
  84         // Checking if the WHERE clause has to be replaced.
  85         if ((!empty($where_clause)) && (is_array($where_clause))) {
  86             $replaces[] = [
  87                 'WHERE', 'WHERE (' . implode(') OR (', $where_clause) . ')'
  88             ];
  89         }
  90
  91         // Preparing to remove the LIMIT clause.
  92         $replaces[] = ['LIMIT', ''];
  93
  94         // Replacing the clauses.
  95         $sql_query = PhpMyAdmin\SqlParser\Utils\Query::replaceClauses(
  96             $parser->statements[0],
  97             $parser->list,
  98             $replaces
  99         );
 100
 101         // Removing the aliases by finding the alias followed by a dot.
 102         $tokens = PhpMyAdmin\SqlParser\Lexer::getTokens($sql_query);
 103         foreach ($aliases as $alias => $table) {
 104             $tokens = PhpMyAdmin\SqlParser\Utils\Tokens::replaceTokens(
 105                 $tokens,
 106                 [
 107                     [
 108                         'value_str' => $alias,
 109                     ],
 110                     [
 111                         'type' => PhpMyAdmin\SqlParser\Token::TYPE_OPERATOR,
 112                         'value_str' => '.',
 113                     ]
 114                 ],
 115                 [
 116                     new PhpMyAdmin\SqlParser\Token($table),
 117                     new PhpMyAdmin\SqlParser\Token('.', PhpMyAdmin\SqlParser\Token::TYPE_OPERATOR)
 118                 ]
 119             );
 120         }
 121         $sql_query = PhpMyAdmin\SqlParser\TokensList::build($tokens);
 122     }
 123
 124     echo PhpMyAdmin\Util::getMessage(PhpMyAdmin\Message::success());
 125 }
 126
 127 if (! isset($sql_query)) {
 128     $sql_query = '';
 129 }
 130 if (! isset($num_tables)) {
 131     $num_tables = 0;
 132 }
 133 if (! isset($unlim_num_rows)) {
 134     $unlim_num_rows = 0;
 135 }
 136 if (! isset($multi_values)) {
 137     $multi_values = '';
 138 }
 139 $response = Response::getInstance();
 140 $response->addHTML(
 141     $displayExport->getDisplay(
 142         'table',
 143         $db,
 144         $table,
 145         $sql_query,
 146         $num_tables,
 147         $unlim_num_rows,
 148         $multi_values
 149     )
 150 );