<?php
$folder = '.';

$extList = array();
$extList['gif'] = 'image/gif';
$extList['jpg'] = 'image/jpeg';
$extList['jpeg'] = 'image/jpeg';
$extList['png'] = 'image/png';


// --------------------- END CONFIGURATION -----------------------

$img = null;

if (substr($folder,-1) != '/') {
    $folder = $folder.'/';
}

if (isset($HTTP_GET_VARS['img'])) {
    $imageInfo = pathinfo($HTTP_GET_VARS['img']);
    if (
        isset( $extList[ strtolower( $imageInfo['extension'] ) ] ) &&
        file_exists( $folder.$imageInfo['basename'] )
    ) {
        $img = $folder.$imageInfo['basename'];
    }
} else {
    $fileList = array();
    $handle = opendir($folder);
    while ( false !== ( $file = readdir($handle) ) ) {
        $file_info = pathinfo($file);
        if (
            isset( $extList[ strtolower( $file_info['extension'] ) ] )
        ) {
            $fileList[] = $file;
        }
    }
    closedir($handle);

    if (count($fileList) > 0) {
        $imageNumber = time() % count($fileList);
        $img = $folder.$fileList[$imageNumber];
    }
}

if ($img!=null)
	{
    $imageInfo = pathinfo($img);
    $contentType = 'Content-type: '.$extList[ $imageInfo['extension'] ];
    header ($contentType);
	$image = imagecreatefromjpeg($img);
	$breedte = imagesx($image);
	$hoogte = imagesy($image);

	$text = '';
	if(isset($_GET['nick']))
		$text = $_GET['nick'];

	$font_size = 2;
	$tekstkleur = imagecolorallocate($image, 0, 0, 0);

	if(isset($_GET['fontcolor']) and strlen($_GET['fontcolor']) == 6)
		{
		$tekstkleur = imagecolorallocate($image, hexdec(substr($_GET['fontcolor'],0,2)),
		hexdec(substr($_GET['fontcolor'],2,2)), hexdec(substr($_GET['fontcolor'],4,2)));
		}

	$align = 'center';
	if(isset($_GET['align']) and ($_GET['align'] == 'left' or $_GET['align'] == 'right'))
		$align = $_GET['align'];

	if($align == 'left')
		imagestring($image, $font_size, 2, $hoogte - imagefontheight($font_size) - 2, $text, $tekstkleur);
	if($align == 'center')
		imagestring($image, $font_size, $breedte/2 - strlen($text) * 0.5 * imagefontwidth($font_size), $hoogte - imagefontheight($font_size) - 2, $text, $tekstkleur);
	if($align == 'right')
		imagestring($image, $font_size, $breedte - strlen($text) * imagefontwidth($font_size) - 2, $hoogte - imagefontheight($font_size) - 2, $text, $tekstkleur);

	imagejpeg($image);
	imagedestroy($image);
	}
	else {
    if ( function_exists('imagecreate') ) {
        header ("Content-type: image/png");
        $im = @imagecreate (60, 60)
            or die ("Cannot initialize new GD image stream");
        $background_color = imagecolorallocate ($im, 0, 0, 0);
        $text_color = imagecolorallocate ($im, 0,0,0);
        imagestring ($im, 2, 5, 5,  "IMAGE ERROR", $text_color);
        imagepng ($im);
        imagedestroy($im);
    }
}

?>