<?php
/********* Expanse ***********/

  /*require(dirname(__FILE__) . '/admin.php');*/
  require(realpath(dirname(__FILE__) .'/../config.php'));
  require(dirname(__FILE__) . '/database.class.php');
  require(dirname(__FILE__) . '/expanse.class.php');
  require(dirname(__FILE__) . '/ozone.php');
  require(dirname(__FILE__) . '/functions.php');
  require(dirname(__FILE__) . '/common.vars.php');
  
  $option = getAllOptions();
  $maxwidth = (isset($_GET['dim'])) ? $_GET['dim'] : (!empty($option->thumbsize) ? $option->thumbsize : 100);
  $maxheight = (isset($_GET['dim'])) ? $_GET['dim'] : (!empty($option->thumbsize) ? $option->thumbsize : 100);
  $item_img = '';
  $item_id = check_get_id('id');
  $image_id = check_get_id('image_id');
  if (!empty($item_id)) {
      $items = new Expanse('items');
      $items->Get($item_id);
      $item_img = rawurlencode($items->image);
      $item_img = !empty($item_img) ? $item_img : ERROR_IMG;
	  $item_img = (!empty($items->width) || ERROR_IMG == $item_img) ? $item_img : FILE_IMG;
      if (isset($_GET['thumb'])) {
          $item_img = (isset($_GET['manual'])) ? $items->thumbnail : $item_img;
      }
      $crop_x = $items->crop_x;
      $crop_y = $items->crop_y;
      $thumb_w = $items->thumb_w;
      $thumb_h = $items->thumb_h;
      $thumb_max = $items->thumb_max;
      if ($thumb_w == 0 && $thumb_h == 0 && $thumb_max != 0) {
          $maxwidth = $maxheight = $thumb_max;
      }
      if (isset($_GET['dim'])) {
          $maxwidth = $maxheight = $thumb_max = (int) $_GET['dim'];
      } elseif ($items->use_default_thumbsize == 1) {
          $maxwidth = $maxheight = $thumb_max = (!empty($option->thumbsize) ? $option->thumbsize : 100);
      }
  } elseif (!empty($image_id)) {
      $images = new Expanse('images');
      $images->Get($image_id);
      $item_img = rawurlencode($images->image);
	  $item_img = !empty($item_img) ? $item_img : ERROR_IMG;
	  $img_width = trim($images->width);
	  $item_img = (!empty($img_width)) ? $item_img : FILE_IMG;
      if (isset($_GET['dim']) && is_numeric($_GET['dim'])) {
          $maxwidth = $maxheight = $thumb_max = (int) $_GET['dim'];
      } else {
          $maxwidth = $maxheight = $thumb_max = $option->thumbsize;
      }
  }
  $uploaddir = (!in_array($item_img, array(ERROR_IMG, FILE_IMG))) ? UPLOADS : EXPANSEPATH . '/images';
  //Constants
  define('IMAGE_BASE', $uploaddir);
  define('MAX_WIDTH', $maxwidth);
  define('MAX_HEIGHT', $maxheight);
  //Get image location
  $image_file = (isset($_GET['pic'])) ? $_GET['pic'] : (!empty($item_id) || !empty($image_id) ? $item_img : str_replace('..', '', $_SERVER['QUERY_STRING']));
  $image_path = IMAGE_BASE . "/" . rawurldecode($image_file);
  //Load image
  $img = null;
  $ext = strtolower($image_path);
  $ext = strrchr($ext, '.');
  $ext = ($ext !== false) ? str_replace('.','',$ext) : ''; 
  if ($ext == 'jpg' || $ext == 'jpeg') {
      $img = @imagecreatefromjpeg($image_path);
  } elseif ($ext == 'png') {
      $img = @imagecreatefrompng($image_path);
      //Only if your version of GD includes GIF support
  } elseif ($ext == 'gif') {
      $img = @imagecreatefromgif($image_path);
  }
  //If an image was successfully loaded, test the image for size
  if ($img) {
      //Get image size and scale ratio
      $width = imagesx($img);
      $height = imagesy($img);
      $scale = min(MAX_WIDTH / $width, MAX_HEIGHT / $height);
      //If the image is larger than the max shrink it
      if ($scale < 1 || isset($_GET['ignore_scale'])) {
          $new_width = floor($scale * $width);
          $new_height = floor($scale * $height);
          //Create a new temporary image
          $tmp_img = imagecreatetruecolor($new_width, $new_height);
          //Copy and resize old image into new image
          if (isset($_GET['thumb']) && $_GET['thumb'] == 1 && !isset($_GET['manual'])) {
              $x = (isset($crop_x) && $crop_x != 0) ? $crop_x : 0;
              $y = (isset($crop_y) && $crop_y != 0) ? $crop_y : 0;
              $w = (isset($thumb_w) && $thumb_w != 0) ? $thumb_w : $new_width;
              $h = (isset($thumb_h) && $thumb_h != 0) ? $thumb_h : $new_height;
              $ow = (isset($thumb_w) && $thumb_w != 0) ? $thumb_w : $width;
              $oh = (isset($thumb_h) && $thumb_h != 0) ? $thumb_h : $height;
              $nw = (isset($thumb_max) && $thumb_max != 0) ? $thumb_max : $new_width;
              $nh = round(($thumb_h * $nw) / $ow);
              if ($w && $h && $nw && $nh) {
                  $tmp_img = imagecreatetruecolor($nw, $nh);
                  imagecopyresampled($tmp_img, $img, 0, 0, $x, $y, $nw, $nh, $w, $h);
              } else {
                  $tmp_img = imagecreatetruecolor($new_width, $new_height);
                  imagecopyresampled($tmp_img, $img, 0, 0, $x, $y, $new_width, $new_height, $width, $height);
              }
          } else {
              imagecopyresampled($tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
          }
          imagedestroy($img);
          $img = $tmp_img;
      }
  }
  //Create error image if necessary
  if (!$img) {
      $img = $error_img = @imagecreatefrompng(EXPANSEPATH . '/images/' . ERROR_IMG);
      if (!$error_img) {
          $img = imagecreate(MAX_WIDTH, MAX_HEIGHT);
          imagecolorallocate($img, 255, 255, 255);
          $c2 = imagecolorallocate($img, 0, 0, 0);
          imageline($img, 0, 0, MAX_WIDTH, MAX_HEIGHT, $c2);
          imageline($img, MAX_WIDTH, 0, 0, MAX_HEIGHT, $c2);
      }
  }
  //Display the image
  if ($ext == 'jpg' || $ext == 'jpeg') {
      header('Content-type: image/jpeg');
  } elseif ($ext == 'png' || isset($error_img)) {
      header('Content-type: image/png');
  } elseif ($ext == 'gif') {
      header('Content-type: image/gif');
  } else {
      header('Content-type: image/jpeg');
  }
  imagepng($img);
?>