<?php
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/*
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Copyright (c) 2013, Florian Schaal, info@schaal-24.de
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of ISPConfig nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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class cronjob_backup_mail extends cronjob {
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// job schedule
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protected $_schedule = '0 0 * * *';
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private $tmp_backup_dir = '';
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/* this function is optional if it contains no custom code */
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public function onPrepare() {
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global $app;
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parent::onPrepare();
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}
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/* this function is optional if it contains no custom code */
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public function onBeforeRun() {
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global $app;
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return parent::onBeforeRun();
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}
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public function onRunJob() {
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global $app, $conf;
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$server_config = $app->getconf->get_server_config($conf['server_id'], 'server');
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$mail_config = $app->getconf->get_server_config($conf['server_id'], 'mail');
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$global_config = $app->getconf->get_global_config('sites');
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$backup_dir = $server_config['backup_dir'];
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$backup_dir_permissions =0750;
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$backup_mode = $server_config['backup_mode'];
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if($backup_mode == '') $backup_mode = 'userzip';
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if($backup_dir != '') {
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$run_backups = true;
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//* mount backup directory, if necessary
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if( $server_config['backup_dir_is_mount'] == 'y' && !$app->system->mount_backup_dir($backup_dir) ) $run_backups = false;
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$records = $app->db->queryAllRecords("SELECT * FROM mail_user WHERE server_id = ? AND maildir != ''", intval($conf['server_id']));
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if(is_array($records) && $run_backups) {
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if(!is_dir($backup_dir)) {
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mkdir(escapeshellcmd($backup_dir), $backup_dir_permissions, true);
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} else {
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chmod(escapeshellcmd($backup_dir), $backup_dir_permissions);
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}
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foreach($records as $rec) {
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//* Do the mailbox backup
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if($rec['backup_interval'] == 'daily' or ($rec['backup_interval'] == 'weekly' && date('w') == 0) or ($rec['backup_interval'] == 'monthly' && date('d') == '01')) {
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$email = $rec['email'];
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$temp = explode("@",$email);
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$domain = $temp[1];
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unset($temp);;
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$domain_rec=$app->db->queryOneRecord("SELECT * FROM mail_domain WHERE domain = ?", $domain);
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$backupusername = 'root';
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$backupgroup = 'root';
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if ($global_config['backups_include_into_web_quota'] == 'y') {
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// this only works, if mail and webdomains are on the same server
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// find webdomain fitting to maildomain
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$sql = "SELECT * FROM web_domain WHERE domain = ?";
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$webdomain = $app->db->queryOneRecord($sql, $domain_rec['domain']);
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// if this is not also the website, find website now
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if ($webdomain && ($webdomain['parent_domain_id'] != 0)) {
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do {
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$sql = "SELECT * FROM web_domain WHERE domain_id = ?";
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$webdomain = $app->db->queryOneRecord($sql, $webdomain['parent_domain_id']);
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} while ($webdomain && ($webdomain['parent_domain_id'] != 0));
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}
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// if webdomain is found, change username/group now
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if ($webdomain) {
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$backupusername = $webdomain['system_user'];
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$backupgroup = $webdomain['system_group'];
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}
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}
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$mail_backup_dir = $backup_dir.'/mail'.$domain_rec['domain_id'];
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if(!is_dir($mail_backup_dir)) mkdir($mail_backup_dir, 0750);
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chmod($mail_backup_dir, $backup_dir_permissions);
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chown($mail_backup_dir, $backupusername);
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chgrp($mail_backup_dir, $backupgroup);
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$mail_backup_file = 'mail'.$rec['mailuser_id'].'_'.date('Y-m-d_H-i');
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// in case of mdbox -> create backup with doveadm before zipping
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if ($rec['maildir_format'] == 'mdbox') {
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if (empty($this->tmp_backup_dir)) $this->tmp_backup_dir = $rec['maildir'];
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// Create temporary backup-mailbox
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exec("su -c 'dsync backup -u \"".$rec["email"]."\" mdbox:".$this->tmp_backup_dir."/backup'", $tmp_output, $retval);
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if($backup_mode == 'userzip') {
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$mail_backup_file.='.zip';
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exec('cd '.$this->tmp_backup_dir.' && zip '.$mail_backup_dir.'/'.$mail_backup_file.' -b /tmp -r backup > /dev/null && rm -rf backup', $tmp_output, $retval);
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}
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else {
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$mail_backup_file.='.tar.gz';
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exec(escapeshellcmd('tar pczf '.$mail_backup_dir.'/'.$mail_backup_file.' --directory '.$this->tmp_backup_dir.' backup && rm -rf '.$this->tmp_backup_dir.'/backup'), $tmp_output, $retval);
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}
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if ($retval != 0) {
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// Cleanup
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if (file_exists($this->tmp_backup_dir.'/backup')) exec('rm -rf '.$this->tmp_backup_dir.'/backup');
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}
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}
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else {
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$domain_dir=explode('/',$rec['maildir']);
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$_temp=array_pop($domain_dir);unset($_temp);
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$domain_dir=implode('/',$domain_dir);
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$parts=explode('/',$rec['maildir']);
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$source_dir=array_pop($parts);
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unset($parts);
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//* create archives
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if($backup_mode == 'userzip') {
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$mail_backup_file.='.zip';
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exec('cd '.$domain_dir.' && zip '.$mail_backup_dir.'/'.$mail_backup_file.' -b /tmp -r '.$source_dir.' > /dev/null', $tmp_output, $retval);
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} else {
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/* Create a tar.gz backup */
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$mail_backup_file.='.tar.gz';
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exec(escapeshellcmd('tar pczf '.$mail_backup_dir.'/'.$mail_backup_file.' --directory '.$domain_dir.' '.$source_dir), $tmp_output, $retval);
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}
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}
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if($retval == 0){
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chown($mail_backup_dir.'/'.$mail_backup_file, $backupusername);
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chgrp($mail_backup_dir.'/'.$mail_backup_file, $backupgroup);
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chmod($mail_backup_dir.'/'.$mail_backup_file, 0640);
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/* Insert mail backup record in database */
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$filesize = filesize($mail_backup_dir.'/'.$mail_backup_file);
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$sql = "INSERT INTO mail_backup (server_id, parent_domain_id, mailuser_id, backup_mode, tstamp, filename, filesize) VALUES (?, ?, ?, ?, ?, ?, ?)";
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$app->db->query($sql, $conf['server_id'], $domain_rec['domain_id'], $rec['mailuser_id'], $backup_mode, time(), $mail_backup_file, $filesize);
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if($app->db->dbHost != $app->dbmaster->dbHost) $app->dbmaster->query($sql, $conf['server_id'], $domain_rec['domain_id'], $rec['mailuser_id'], $backup_mode, time(), $mail_backup_file, $filesize);
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unset($filesize);
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} else {
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/* Backup failed - remove archive */
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if(is_file($mail_backup_dir.'/'.$mail_backup_file)) unlink($mail_backup_dir.'/'.$mail_backup_file);
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// And remove backup-mdbox
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if ($rec['maildir_format'] == 'mdbox') {
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if(file_exists($rec['maildir'].'/backup')) exec("su -c 'rm -rf ".$rec['maildir']."/backup'");
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}
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$app->log($mail_backup_file.' NOK:'.implode('',$tmp_output), LOGLEVEL_DEBUG);
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}
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/* Remove old backups */
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$backup_copies = intval($rec['backup_copies']);
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$dir_handle = dir($mail_backup_dir);
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$files = array();
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while (false !== ($entry = $dir_handle->read())) {
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if($entry != '.' && $entry != '..' && substr($entry,0,4+strlen($rec['mailuser_id'])) == 'mail'.$rec['mailuser_id'] && is_file($mail_backup_dir.'/'.$entry)) {
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$files[] = $entry;
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}
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}
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$dir_handle->close();
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rsort($files);
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for ($n = $backup_copies; $n <= 10; $n++) {
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if(isset($files[$n]) && is_file($mail_backup_dir.'/'.$files[$n])) {
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unlink($mail_backup_dir.'/'.$files[$n]);
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$sql = "DELETE FROM mail_backup WHERE server_id = ? AND parent_domain_id = ? AND filename = ?";
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$app->db->query($sql, $conf['server_id'], $domain_rec['domain_id'], $files[$n]);
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if($app->db->dbHost != $app->dbmaster->dbHost) $app->dbmaster->query($sql, $conf['server_id'], $domain_rec['domain_id'], $files[$n]);
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}
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}
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unset($files);
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unset($dir_handle);
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}
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/* Remove inactive backups */
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if($rec['backup_interval'] == 'none') {
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/* remove backups from db */
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$sql = "DELETE FROM mail_backup WHERE server_id = ? AND parent_domain_id = ? AND mailuser_id = ?";
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$app->db->query($sql, $conf['server_id'], $domain_rec['domain_id'], $rec['mailuser_id']);
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if($app->db->dbHost != $app->dbmaster->dbHost) $app->dbmaster->query($sql, $conf['server_id'], $domain_rec['domain_id'], $rec['mailuser_id']);
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/* remove archives */
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$mail_backup_dir = $backup_dir.'/mail'.$rec['domain_id'];
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$mail_backup_file = 'mail'.$rec['mailuser_id'].'_*';
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if(is_dir($mail_backup_dir)) {
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foreach (glob($mail_backup_dir.'/'.$mail_backup_file) as $filename) {
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unlink($filename);
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}
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}
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}
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}
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if( $server_config['backup_dir_is_mount'] == 'y' ) $app->system->umount_backup_dir($backup_dir);
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} //* end run_backups
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}
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parent::onRunJob();
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}
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/* this function is optional if it contains no custom code */
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public function onAfterRun() {
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global $app;
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parent::onAfterRun();
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}
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}
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?>
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