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