<?php
include("common_db.php");
include("functions.php");
dbconnect($host, $username, $password); //from common_db.php
$strings = loadStrings($lang, 'REXPORT');
headers();
html();
head($strings['REX_TITLE'], array('js/rex.php'));
menu();
navpane();

//get database and table
if(isset($_REQUEST['database'])) {
	$db = mysql_real_escape_string($_REQUEST['database']);
} else {
	//TODO: panic
}

if($_REQUEST['database']=='HypatiaDB') {
	printAuthError(); die();
}

if(isset($_REQUEST['table'])) {
	$table = mysql_real_escape_string($_REQUEST['table']);
} else {
	//TODO: panic
}

//get a nice temp filename
$tfname = dirname(__FILE__) . '/database-export';

//Now, that file shouldn't exist (because the user should've deleted
//it after the last delete. Consequently, we can safely call unlink
//on it, just in case. This is done in the switch statements, because
//there's an extension that still needs to be appended.)

?>
	<div id="mainpane">
<?php
switch($_REQUEST['type']) {
	case 'dbdump':
		//This mode returns a database dump (i.e., a file containing SQL statements)
		//in the specified format. To achieve this, we use mysqldump, which comes with
		//all mysql distros that have been released this decade or so.
		$tfname .= '.sql';
		@unlink($tfname);
		//validate the mode
		$mode = $_REQUEST['dbd_mode'];
		switch($mode) {
			case 'mysql40':
			case 'mysql323':
			case 'ansi':
			case 'postgresql':
			case 'oracle':
			case 'mssql':
			case 'db2':
			case 'maxdb':
			break;
			default:
				$mode = 'mysql40';
			break;
		}
		$command = "mysqldump -h $host -u $username";
		if($password != "")
			$command .= " -p $password";
		$command .= " --compatible=$mode $db $table > $tfname";
		exec($command);
	break;
	case 'csv':
		//CSVs are supported natively by mysql
		//See the docs for the SELECT statement
		$tfname .= '.csv';
		@unlink($tfname);

		mysql_select_db($db);
		$query = "SELECT * INTO OUTFILE '$tfname' FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '\"' LINES TERMINATED BY '\\n' FROM $table";
		(mysql_query($query)) or die(mysql_error());		//TODO: L10N
	break;
	case 'xml':
		//The xml version is much the same as the regular database dump, except
		//we need to pass the --xml parameter to mysqldump, and there is no
		//mode argument.
		$tfname .= '.xml';
		@unlink($tfname);

		$command = "mysqldump -h $host -u $username";
		if($password != "")
			$command .= " -p $password";
		$command .= " --xml $db $table > $tfname";
		exec($command);
	break;
	default:
		//TODO: panic
	break;
}
echo("<p>$strings[REX_INFO]</p>");

echo('<p><a href="' . basename($tfname) . '">' . $strings['REX_DOWNLOAD'] . '</a></p>');
echo('<p><span class="ll" id="dela" onclick="deleteFromServer(\'' . $tfname . '\');">' . $strings['REX_DELETE'] . '</span></p>');

?>
	</div>
<?php
endhtml();
?>