<?php
// (C) 2011 Bry8Star.
// Bry8Star <at> yahoo <dot> com.
//
// Shuffle Photo :
// Randomly output any image from a folder to the caller of this php
// It should be called in this way :
//     ./shuffle_photo.php?pic=any.jpg
// example : <img src="shuffle_photo.php?pic=any.jpg" alt="" />
//

$ref = strtolower($_SERVER['HTTP_REFERER']);
$agnt = strtolower($_SERVER['HTTP_USER_AGENT']);
$rurl = @parse_url($ref);

$v = '0';
$rc = '1';

$mydom = array(
'exm1.com',
'www.exm1.com');

$err = 'http://www.exm1.com/400.shtml';

if(strpos($ref, 'google') != ''){ $v = '1';}
if(strpos($agnt, 'google') != ''){ $v = '2';}
if(strpos($ref, 'altavista') != ''){ $v = '1';}
if(strpos($agnt, 'altavista') != ''){ $v = '2';}
if(strpos($ref, 'yahoo') != ''){ $v = '1';}
if(strpos($agnt, 'yahoo') != ''){ $v = '2';}
if(strpos($agnt, 'slurp') != ''){ $v = '2';}
if(strpos($ref, 'lycos') != ''){ $v = '1';}
if(strpos($agnt, 'lycos') != ''){ $v = '2';}
if(strpos($ref, 'ask') != ''){ $v = '1';}
if(strpos($agnt, 'teoma') != ''){ $v = '2';}

if($rc == '1') {
    if(isset($_REQUEST['pic'])) {
        while(list($k,$c)=each($mydom)) {
            if(strstr($ref,$c)) {
                $v = '3';
            }
            else {
                if(strstr($ref.$rurl[path],$c)) {
                    $v = '3';
                }
            }
        }
    }
    if($v == '0') {
        header('Location: '. $err .'');
        exit;
    }
}

$picL2 = array(         # image/pic LIST
'pic01.jpg',        #1
'pic02.jpg',        #2
'pic03.jpg');       #3
// Add numbers inside below array , keep 1 less than the above LIST,
// as it already starts with 0.
$numL2 = array(0,1,2);
$temp2 = count($numL2);
$secssame2=8;
$seedval2=(int)(time()/$secssame2);
srand($seedval2);
for ($i2=0; $i2<$temp2; ++$i2){
    $rand2=rand(0,$temp2);      //$rand2=rand(0,$temp2-1);
    $temp2 =$numL2[$i2];
    $numL2[$i2]=$numL2[$rand2];
    $numL2[$rand2]=$temp2;
}
$temp2 = $numL2[5];
$file2 = $picL2[$temp2];
header('Content-Disposition: filename=any.jpg');
header('Content-Length: ' . filesize( $file2 ) );
header('Content-type: image/jpeg');
readfile($file2);
?>