#!/usr/bin/env php
<?php
// CODER AMIR
$time_start = microtime(true);
logmessages("started back up at :".date('Y-m-d h:i:s a'));
error_reporting(E_ALL);
ini_set('display_errors',1);

//$mail= array("sendmail"=>true,
//                       "sendto"=>array('didarema@gmail.com'));
$dbuser='root';
$dbpass='passw0rd';
$dbname='--all-databases';
$sambaip='//172.16.8.50/137/';
$ceredntial = "username=back137,password=137back@1394";
$sambamountpath='/mnt';
$backupdirectory=$sambamountpath.'/backup/';
$backupdirectoryforsounds= $sambamountpath.'/backup/sounds/';
$backupdirectoryfordbs=$sambamountpath.'/backup/db/';
$directorytobackup= array("/var/spool/asterisk/monitor","/var/spool/asterisk/voicemail","/var/spool/asterisk/record");

//end configuration
$date                   =       date('Y-m-d');
$timesig                        =       str_ireplace(array(" ",":") , "_" , date('h:i:s Y-m-d'));

$findsamba=exec('df -T -x tmpfs -x devtmpfs -P -B 1K',$mountedpath) ;
array_shift($mountedpath);
        foreach($mountedpath as $disks)
            {
                $split = preg_split('/\s+/', $disks);
                $Stats[] = array(
                'disk' => $split[0],
                'mount' => $split[6],
                'type' => $split[1],
                //'mb_total' => $split[2],
                //'mb_used' => $split[3],
                'mb_free' => $split[4],
                //'percent' => $split[5],
                );
            }



foreach($Stats as $path)
{
    if(stristr($path['disk'], $sambaip))
    {
        //found the partiton for samba
        $mounted=true;
        //$mountpath=$path['mount'];
    }
}
if(!$mounted)
{
    //try mount
    logmessages($sambaip . ": Not mounted trying to mount in {$sambamountpath} => ".date('Y-m-d h:i:s a'));
    exec("mount -t smbfs -o  {$ceredntial} {$sambaip}  {$sambamountpath}",$mountresult);
    if(empty($mountresult))
    {
        logmessages("mounted {$sambaip} in {$sambamountpath} =>" .date('Y-m-d h:i:s a'));
        $mountpath='/mnt';
    }
    else
    {
        logmessages($sambaip . ": Not mounted and  could Not be mounted =>".date('Y-m-d h:i:s a'));
    }

}
else
{
    logmessages("Samba is already mounted =>" .date('Y-m-d h:i:s a'));
}



//create backup directory in first run if it does not exist
checkAndCreateDir($backupdirectory);
foreach($directorytobackup as $dir )
{
    $lastdir= substr($dir, strrpos($dir, '/')+1);
    checkAndCreateDir($lastdir);
}


checkAndCreateDir($backupdirectoryfordbs);

//back up all paths defined in $directorytobackup variable
foreach($directorytobackup as $key=>$value)
{
        //$finddir= $backupdirectory.substr($dir, strrpos($dir, '/')+1);
        $move=exec("rsync -avz {$value} {$backupdirectory} --log-file=/root/rsynclog ");
        logmessages("copied ". $value . "  directory contetnt  : ".date('Y-m-d h:i:s a'));
}

//back up defined database here
$dbnamebackup=  str_replace('--', "",$dbname );
$dbnamebackup=$dbnamebackup.'-'.$timesig;
logmessages("Start database dump :" .date('Y-m-d h:i:s a'));
$dobackup=exec('mysqldump -u '.$dbuser.' -p'.$dbpass.' '.$dbname . ' > ' .$backupdirectoryfordbs.$dbnamebackup.'.sql');
logmessages("dumped mysql database with name :".$dbname."  msg:".$dobackup." : ".date('Y-m-d h:i:s a'));
//change path to tmp direcotry so when creating tar file we do not get abs path

$sqldumps =  glob($backupdirectoryfordbs.'*.sql');
foreach($sqldumps as $key=>$value)
{
        if ($value != '.' && $value != '..')
        {
                 $files[$value] = filemtime($value);
        }
}

array_multisort($files,SORT_DESC,$files); //Added Descending sort Here
logmessages("checking back up files timestamp :".date('Y-m-d h:i:s a'));
if(count($files)>=10)
{
        end($files);
        $filename= key($files);
        unlink($filename);
        logmessages("removed back up files".$filename." as policy is to keep ten last backup:".date('Y-m-d h:i:s a'));
}


//
/*if($mail['sendmail'])
{
        if(count($mail['sendto']))
        {
                foreach($mail['sendto'] as $key=>$value)
                {
                        $subject = "Support Desk server backup";
                        $message = "Daily backup of support desk is  server done";
                        $from    = "its3@ut.ac.ir";
                        $headers = "From:" . $from;

                        if(mail($value,$subject,$message,$headers))
                        {
                                logmessages('Mail sent to email address');
                        }
                }
        }
}
*/
$time_end = microtime(true);
$time = $time_end - $time_start;
logmessages("back up done successfully finished at : ".date('Y-m-d h:i:s a'). " back up took to complete : ".round($time,2));

function logmessages($message)
{
        $filename="backup.log";
        $handle=fopen("/var/log/".$filename,'a');
        fwrite($handle,$message.PHP_EOL);
        fclose($handle);
}

function checkAndCreateDir($dir)
{
    if(!file_exists($dir) && !is_dir($dir))
    {
        logmessages("created backup directory {$dir} : ".date('Y-m-d h:i:s a'));
        mkdir($dir);
     }
}


?>