Keskustelu: Nettisivujen teko: PHP thumbs

<?php
include("conf.php");
function pngThumbnail($file) {
  global $dsize;
  global $dirfile;
  global $errfile;

  if (function_exists('imagecreatetruecolor')) { $im = imagecreatetruecolor($dsize, $dsize); }
  else { $im = imagecreate($dsize, $dsize); }

  $background = imagecolorclosest ( $im, 0, 0, 0);    // Tausta
  $frame1 = imagecolorclosest ( $im, 50, 50, 50);        // Frame1
  $frame2 = imagecolorclosest ( $im, 25, 25, 25);         // Frame2
  $frame3 = imagecolorclosest ( $im, 25, 25, 25);             // Frame3
  imagefilledrectangle ( $im, 0, 0, $dsize, $dsize, $background);

  $size = @getimagesize($file);
  switch($size[2]) {
    case 2:
      $si = imagecreatefromjpeg($file);
      break;
    case 3:
      $si = imagecreatefrompng($file);
      break;
    case 1:
      if (function_exists('imagecreatefromgif')){
        $si = imagecreatefromgif($file);
        break;
      }
    default:
      $file = $errfile;
      $size = @getimagesize($file);
      $si = imagecreatefrompng($file);
      break;
  }
  $im_w = $size[0]; $im_h = $size[1];
  if(($im_h < $dsize) && ($im_w < $dsize)) {
    $dw = $im_w;
    $dh = $im_h;
    $dx = floor(($dsize - $dw)/2);
    $dy = floor(($dsize - $dh)/2);
  } elseif ( $im_w > $im_h ) {
    $dx = 0;
    $dw = $dsize;
    $dh = floor($dsize * $im_h/$im_w);
    $dy = floor(($dsize - $dh)/2);
  } else {
    $dy = 0;
    $dh = $dsize;
    $dw = floor($dsize * $im_w/$im_h);
    $dx = floor(($dsize - $dw)/2);
  }

  if (function_exists('imagecopyresampled')) { imagecopyresampled( $im, $si, $dx, $dy, 0, 0, $dw, $dh, $im_w, $im_h); }
  else { imagecopyresized( $im, $si, $dx, $dy, 0, 0, $dw, $dh, $im_w, $im_h); }

  imagerectangle ( $im, -1, -1, $dsize-2, $dsize-2, $frame1);
  imagerectangle ( $im, 0, 0, $dsize, $dsize, $frame2);
  imagerectangle ( $im, -1, -1, $dsize-1, $dsize-1, $frame3);

  imageinterlace($im, 1);
  imagepng($im);
  if(!(is_dir("thumbs"))) { mkdir("thumbs"); }
  imagepng($im, 'thumbs/'.str_replace('/', '´´', str_replace('\\', '``', $file)));
  imagedestroy($im);
  imagedestroy($si);
  exit();
}

if (isset($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] !== '')) {
  $file = $_SERVER['QUERY_STRING'];
  $regs = array();
  while (ereg('%[0-9]{2}', $file, $regs)) {
    $file = str_replace($regs[0], chr(hexdec($regs[0])), $file);
  }
  if(is_dir($file)) {
    $i = 0;
    $dir = opendir($file);
    while($b = readdir($dir)) {
      $koko = @getimagesize($file."/".$b);
      if(($koko[2] == 1) || ($koko[2] == 2) || ($koko[2] == 3)) { $file = $file."/".$b; $i++; }
    }
    if($i == 0) { $file = $dirfile; }
    $icon = $dirico;
  }
  $file2 = str_replace('/', '´´', str_replace('\\', '``', $file));
  if(is_file('thumbs/'.$file2)) {
    $im = imagecreatefrompng('thumbs/'.$file2);
    imagepng ($im);
    exit();
        }
  elseif (is_readable($file)) {
    pngThumbnail($file);
    $icon = $imgico;
    exit();
  }
  else {
    pngThumbnail($errfile);
    $icon = $imgico;
    exit();
  }
}
exit();
?>