/zklib/zkuser.php

<?php
    function getSizeUser($self) {
        /*Checks a returned packet to see if it returned CMD_PREPARE_DATA,
        indicating that data packets are to be sent

        Returns the amount of bytes that are going to be sent*/
        $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr( $self->data_recv, 0, 8 ) ); 
        $command = hexdec( $u['h2'].$u['h1'] );
        
        if ( $command == CMD_PREPARE_DATA ) {
            $u = unpack('H2h1/H2h2/H2h3/H2h4', substr( $self->data_recv, 8, 4 ) );
            $size = hexdec($u['h4'].$u['h3'].$u['h2'].$u['h1']);
            return $size;
        } else
            return FALSE;
    }
    
    function zksetuser($self, $uid, $userid, $name, $password, $role) {
        $command = CMD_SET_USER;
        //$command_string = str_pad(chr( $uid ), 2, chr(0)).chr($role).str_pad($password, 8, chr(0)).str_pad($name, 28, chr(0)).str_pad(chr(1), 9, chr(0)).str_pad($userid, 8, chr(0)).str_repeat(chr(0),16);
        $byte1 = chr((int)($uid % 256));
echo "<br>byte1=<br>";
print_r(unpack("H*",$byte1));
        $byte2 = chr((int)($uid >> 8));
echo "<br>byte1=<br>";
print_r(unpack("H*",$byte2));

echo "<br>strpad pass=<br>";
print_r(str_pad($password, 8, chr(0)));
echo "<br>strpad pass unpackd=<br>";
print_r(unpack("H*",str_pad($password, 8, chr(0))));
        $command_string = $byte1.$byte2.chr($role).str_pad($password, 8, chr(0)).str_pad($name, 28, chr(0)).str_pad(chr(1), 9, chr(0)).str_pad($userid, 8, chr(0)).str_repeat(chr(0),16);

echo "<br>unpacked cmd str<br>";
print_r(unpack("H*",$command_string));
        $chksum = 0;
        $session_id = $self->session_id;
        
        $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr( $self->data_recv, 0, 8) );
        $reply_id = 00;//hexdec( $u['h3'].$u['h7'] )+1;

        $buf = $self->createHeader($command, $chksum, $session_id, $reply_id, $command_string);
echo "<br>unpacked buffer<br>";
print_r(unpack("H*",$buf));        
        socket_sendto($self->zkclient, $buf, strlen($buf), 0, $self->ip, $self->port);
        
        try {
            @socket_recvfrom($self->zkclient, $self->data_recv, 1024, 0, $self->ip, $self->port);
            
            $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6', substr( $self->data_recv, 0, 8 ) );
            
            $self->session_id =  hexdec( $u['h6'].$u['h5'] );
            return substr( $self->data_recv, 8 );
        } catch(ErrorException $e) {
            return FALSE;
        } catch(exception $e) {
            return False;
        }
    }
    
    function zkgetuser($self) {
        $command = CMD_USERTEMP_RRQ;
        $command_string = chr(5);
        $chksum = 0;
        $session_id = $self->session_id;
echo "<br><br>sid".$session_id." cmd".$command."data_recv= ".($self->data_recv)."<br>";       
        $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr( $self->data_recv, 0, 8) );
//echo substr($self->data_recv,0,8)." ";
print_r( unpack("H*",substr($self->data_recv,0,8)));
echo gettype($u);
print_r($u);
//echo gettype($u['h8']);
//echo "substr";
//echo chr(5);
//echo "substr";
//echo substr( $self->data_recv, 0, 8);
        $reply_id = hexdec( $u['h8'].$u['h7'] );
echo "reply_id = ".$reply_id."<br>";
echo "before createheader<br>"."command = ".dechex($command)." chksum= ".dechex($chksum)." session id = ".dechex($session_id)." reply_id = ".dechex($reply_id) . "<br>";
        $buf = $self->createHeader($command, $chksum, $session_id, $reply_id, $command_string);
echo "buf = ";
print_r(unpack("H*",$buf));
//echo decbin(52);
//echo "<br>";

       
        socket_sendto($self->zkclient, $buf, strlen($buf), 0, $self->ip, $self->port);
        
        try {
            @socket_recvfrom($self->zkclient, $self->data_recv, 1024, 0, $self->ip, $self->port);
echo "<br><br>first recvfrm<br>";
print_r(unpack("H*",$self->data_recv));            
            $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6', substr( $self->data_recv, 0, 8 ) );
echo "<br><br>\$u taken from data_recv <br>";
print_r($u);              
            if ( getSizeUser($self) ) {
                $bytes = getSizeUser($self);
echo "<br><br>entering while loop-bytes = ".$bytes."<br>";
                while ( $bytes > 0 ) {
                    @socket_recvfrom($self->zkclient, $data_recv, 1032, 0, $self->ip, $self->port);
                    array_push( $self->userdata, $data_recv);

echo "<br>in loop<br>";
$value = unpack('H*', $data_recv);
print_r($value);
echo "<br><br>";
/*
for($i=0;$i<count($value);$i++)
{
$c = chr($value[$i+1]);
$utf8 = utf8_decode(chr($value[$i+1]));
$iso88591_1 = utf8_decode($utf8);
$iso88591_2 = iconv('UTF-8', 'ISO-8859-1', $utf8);
//$iso88591_2 = mb_convert_encoding($utf8, 'ISO-8859-1', 'UTF-8');
$iso88591 = chr($value[$i+1]);
$utf8_1 = utf8_encode($iso88591);
$utf8_2 = iconv('ISO-8859-1', 'UTF-8', $iso88591);
//$utf8_2 = mb_convert_encoding($iso88591, 'UTF-8', 'ISO-8859-1');
echo "char val-> ".$value[$i+1]."char-> ".chr($value[$i+1])." utf-8 enc-> ".chr(utf8_encode($value[$i+1]))." utf-8 dec-> ".chr(utf8_decode($value[$i+1]));
echo "<br>";
echo $utf8_1;
}
*/
//$binary = base_convert($value[1], 16, 2);
//echo pack('H*', base_convert($binary, 2, 16));
                    $bytes -= 1024;
                }
echo "<br>while loop ends. total userdata(*showing [0] only edit later)->";
print_r(unpack("H*",$self->userdata[0]));
                $self->session_id =  hexdec( $u['h6'].$u['h5'] );
                @socket_recvfrom($self->zkclient, $data_recv, 1024, 0, $self->ip, $self->port);
echo "<br><br>last data received<br>";
print_r(unpack("H*",$data_recv));
echo "<br><br>";
            }
            
            
            $users = array();
            if ( count($self->userdata) > 0 ) {
                //The first 4 bytes don't seem to be related to the user
                for ( $x=0; $x<count($self->userdata); $x++) {
                    if ( $x > 0 ){
echo "<br>";
print_r(unpack("H*",$self->userdata[$x]));
                        $self->userdata[$x] = substr( $self->userdata[$x], 8 );
echo "<br>";
print_r(unpack("H*",$self->userdata[$x]));
}
                }
                
                $userdata = implode( '', $self->userdata );
echo "<br><br>after imploding userdata<br>";
print_r(unpack("H*",$userdata));
echo "<br>"; 
echo "<br><br>strlen userdata<br>";
echo strlen($userdata);
echo "<br>userdata<br>";
		$userdata = substr($userdata,11);
echo "<br><br>rejecting first 11 bytes<br>";
print_r(unpack("H*",$userdata));
echo "<br>userdata<br>";

echo "<br><br>strlen userdata after removing 11<br>";
echo strlen($userdata);
echo "<br>userdata<br>";

                while ( strlen($userdata) > 72 ) {
                    
                    $u = unpack( 'H144', substr( $userdata, 0, 72) );
echo "<br>unpacked first 72 bytes h144 ".strlen($u[1])."<br>";
print_r($u);
echo "<br>";

                    //$uid = hexdec( substr($u[1], 0, 4) ).' ';
                    $u1 = hexdec( substr($u[1], 2, 2) );
echo "<br> \$u1= ". $u1;
echo "<br>";
                    $u2 = hexdec( substr($u[1], 4, 2) );
echo "<br> \$u2= ". $u2;
echo "<br>";
                    $uid = $u1+($u2*256);
echo "<br> \$uid= ". $uid;
echo "<br>";
                    $cardno = hexdec( substr($u[1], 78, 2).substr($u[1], 76, 2).substr($u[1], 74, 2).substr($u[1], 72, 2) ).' '; 
                    $role = hexdec( substr($u[1], 4, 4) ).' '; 
                    $password = hex2bin( substr( $u[1], 8, 16 ) ).' '; 
                    $name = hex2bin( substr( $u[1], 24, 74 ) ). ' '; 
                    $userid = hex2bin( substr( $u[1], 98, 72) ).' ';
                    
                    //Clean up some messy characters from the user name
                    $password = explode( chr(0), $password, 2 );
                    $password = $password[0];
                    $userid = explode( chr(0), $userid, 2);
                    $userid = $userid[0];
                    $name = explode(chr(0), $name, 3);
                    $name = utf8_encode($name[0]);
                    $cardno = str_pad($cardno,11,'0',STR_PAD_LEFT);
                    
                    if ( $name == "" )
                        $name = $uid;
                    
                    $users[$uid] = array($userid, $name, $cardno, $uid,intval( $role ), $password);
                    
                    $userdata = substr( $userdata, 72 );
                }
            }
            
            return $users;
        } catch(ErrorException $e) {
            return FALSE;
        } catch(exception $e) {
            return False;
        }
    }
    
    function zkclearuser($self) {
        $command = CMD_CLEAR_DATA;
        $command_string = '';
        $chksum = 0;
        $session_id = $self->session_id;
        
        $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr( $self->data_recv, 0, 8) );
        $reply_id = hexdec( $u['h8'].$u['h7'] );

        $buf = $self->createHeader($command, $chksum, $session_id, $reply_id, $command_string);
        
        socket_sendto($self->zkclient, $buf, strlen($buf), 0, $self->ip, $self->port);
        
        try {
            @socket_recvfrom($self->zkclient, $self->data_recv, 1024, 0, $self->ip, $self->port);
            
            $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6', substr( $self->data_recv, 0, 8 ) );
            
            $self->session_id =  hexdec( $u['h6'].$u['h5'] );
            return substr( $self->data_recv, 8 );
        } catch(ErrorException $e) {
            return FALSE;
        } catch(exception $e) {
            return False;
        }
    }
    
    function zkclearadmin($self) {
        $command = CMD_CLEAR_ADMIN;
        $command_string = '';
        $chksum = 0;
        $session_id = $self->session_id;
        
        $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr( $self->data_recv, 0, 8) );
        $reply_id = hexdec( $u['h8'].$u['h7'] );

        $buf = $self->createHeader($command, $chksum, $session_id, $reply_id, $command_string);
        
        socket_sendto($self->zkclient, $buf, strlen($buf), 0, $self->ip, $self->port);
        
        try {
            @socket_recvfrom($self->zkclient, $self->data_recv, 1024, 0, $self->ip, $self->port);
            
            $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6', substr( $self->data_recv, 0, 8 ) );
            
            $self->session_id =  hexdec( $u['h6'].$u['h5'] );
            return substr( $self->data_recv, 8 );
        } catch(ErrorException $e) {
            return FALSE;
        } catch(exception $e) {
            return False;
        }
    }
?>