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postfixadmin/public/backup.php

136 lines
4.2 KiB
PHP

<?php
/**
* Postfix Admin
*
* LICENSE
* This source file is subject to the GPL license that is bundled with
* this package in the file LICENSE.TXT.
*
* Further details on the project are available at http://postfixadmin.sf.net
*
* @version $Id$
* @license GNU GPL v2 or later.
*
* File: backup.php
* Used to save all settings - but only works for MySQL databases.
* Template File: -none-
*
* Template Variables: -none-
*
* Form POST \ GET Variables: -none-
*/
require_once('common.php');
authentication_require_role('global-admin');
(($CONF['backup'] == 'NO') ? header("Location: main.php") && exit : '1');
// TODO: make backup supported for postgres
if (db_pgsql()) {
flash_error('Sorry: Backup is currently not supported for your DBMS ('.$CONF['database_type'].').');
$smarty->assign('smarty_template', 'message');
$smarty->display('index.tpl');
die;
}
if (safeget('download') == "") {
$smarty->assign('smarty_template', 'backupwarning');
$smarty->display('index.tpl');
die;
}
# Still here? Then let's create the database dump...
/*
SELECT attnum,attname,typname,atttypmod-4,attnotnull,atthasdef,adsrc
AS def FROM pg_attribute,pg_class,pg_type,pg_attrdef
WHERE pg_class.oid=attrelid AND pg_type.oid=atttypid
AND attnum>0 AND pg_class.oid=adrelid AND adnum=attnum AND atthasdef='t' AND lower(relname)='admin'
UNION SELECT attnum,attname,typname,atttypmod-4,attnotnull,atthasdef,''
AS def FROM pg_attribute,pg_class,pg_type
WHERE pg_class.oid=attrelid
AND pg_type.oid=atttypid
AND attnum>0
AND atthasdef='f'
AND lower(relname)='admin'
$db = $_GET['db'];
$cmd = "pg_dump -c -D -f /tix/miner/miner.sql -F p -N -U postgres $db";
$res = `$cmd`;
// Alternate: $res = shell_exec($cmd);
echo $res;
*/
if ($_SERVER['REQUEST_METHOD'] == "GET") {
umask(077);
$path = (ini_get('upload_tmp_dir') != '') ? ini_get('upload_tmp_dir') : '/tmp';
date_default_timezone_set(@date_default_timezone_get()); # Suppress date.timezone warnings
// Should use mktemp() or similar.
$backup = tempnam($path, 'postfixadmin-' . date('Ymd'));
$filename = basename($backup) . '.sql';
$header = "#\n# Postfix Admin $version\n# Date: " . date("D M j G:i:s T Y") . "\n#\n";
if (!$fh = fopen($backup, 'w')) {
flash_error("<div class=\"error_msg\">Cannot open file ($backup)</div>");
$smarty->assign('smarty_template', 'message');
$smarty->display('index.tpl');
} else {
fwrite($fh, $header);
$tables = array(
'admin',
'alias',
'alias_domain',
'config',
'domain',
'domain_admins',
'fetchmail',
'log',
'mailbox',
'quota',
'quota2',
'vacation',
'vacation_notification'
);
for ($i = 0 ; $i < sizeof($tables) ; ++$i) {
$result = db_prepared_fetch_all("SHOW CREATE TABLE " . table_by_key($tables[$i]));
foreach($result as $row) {
fwrite($fh, array_pop($row));
}
}
for ($i = 0 ; $i < sizeof($tables) ; ++$i) {
// may be a large resultset?
$pdo = db_connect();
$stmt = $pdo->prepare('SELECT * FROM ' . table_by_key($tables[$i]));
$stmt->execute();
while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$fields = array_keys($row);
$values = array_values($row);
$values = array_map(function ($str) {
return escape_string($str);
}, $values);
fwrite($fh, "INSERT INTO ". $tables[$i] . " (". implode(',', $fields) . ") VALUES ('" . implode('\',\'', $values) . "');\n");
$fields = "";
$values = "";
}
}
}
header("Content-Type: text/plain");
header("Content-Disposition: attachment; filename=\"$filename\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . filesize($backup));
header("Content-Description: Postfix Admin");
$download_backup = fopen($backup, "r");
unlink($backup);
fpassthru($download_backup);
}
/* vim: set expandtab softtabstop=3 tabstop=3 shiftwidth=3: */