/**
* @return resource image
*/
public function getImage()
{
$url = $this->image;
if (!function_exists("gd_info")) {
return null;
}
if ($url == "") {
return $this->createblank();
}
$size = $this->config()->getConfig("LIBRARIAN_IMAGE_SIZE", false, 150);
$domains = $this->config()->getConfig("LIBRARIAN_IMAGE_DOMAINS", false);
// images can only come from these domains, for added security
if ($domains != null) {
$bolPassed = Parser::withinDomain($url, $domains);
if ($bolPassed == false) {
throw new \Exception("librarian image not allowed from that domain");
}
}
$image_string = file_get_contents($url);
if ($image_string == "") {
return $this->createblank();
} else {
// convert to a thumbnail
$original = imagecreatefromstring($image_string);
if ($original == false) {
return $this->createblank();
}
$old_x = imagesx($original);
$old_y = imagesy($original);
if ($old_x > $old_y) {
$thumb_w = $size;
$thumb_h = $old_y * ($size / $old_x);
}
if ($old_x < $old_y) {
$thumb_w = $old_x * ($size / $old_y);
$thumb_h = $size;
}
if ($old_x == $old_y) {
$thumb_w = $size;
$thumb_h = $size;
}
$thumb = imagecreatetruecolor($thumb_w, $thumb_h);
imagecopyresampled($thumb, $original, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
imagedestroy($original);
return $thumb;
}
}
