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postfixadmin/backup.php

148 lines
4.6 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://www.postfixadmin.com or 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');
(($CONF['backup'] == 'NO') ? header("Location: main.php") && exit : '1');
// TODO: make backup supported for postgres
if ('pgsql'==$CONF['database_type']) {
flash_error('<p>Sorry: Backup is currently not supported for your DBMS ('.$CONF['database_type'].').</p>');
$smarty->assign ('smarty_template', 'message');
$smarty->display ('index.tpl');
die;
}
if (safeget('download') == "") {
flash_error('
<p><span class="error_msg">Warning:</span> The backup module of PostfixAdmin is poorly maintained and might contain bugs.</p>
<p>Please use <tt>mysqldump</tt> to get a reliable backup of your database.</p>
<p>&nbsp;</p>
<p>If you still trust this backup module, you can <a href="backup.php?download=1" class="button">download the database dump now</a></p>
');
$smarty->assign ('smarty_template', 'message');
$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
$filename = "postfixadmin-" . date ("Ymd") . "-" . getmypid() . ".sql";
$backup = $path . DIRECTORY_SEPARATOR . $filename;
$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)
{
$result = db_query ("SHOW CREATE TABLE " . table_by_key($tables[$i]));
if ($result['rows'] > 0)
{
while ($row = db_array ($result['result']))
{
fwrite ($fh, "$row[1];\n\n");
}
}
}
for ($i = 0 ; $i < sizeof ($tables) ; ++$i)
{
$result = db_query ("SELECT * FROM " . table_by_key($tables[$i]));
if ($result['rows'] > 0)
{
while ($row = db_assoc ($result['result']))
{
$fields = array_keys($row);
$values = array_values($row);
$values = array_map('escape_string', $values);
fwrite ($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: */
?>