function create_thumb($filename, $thumbfilename)
{
//Lade Bild
$loaded_image = imagecreatefromfile($filename);
//echo "a: ".imagetype($filename) ."<br>";
//preecho($loaded_image);
$img = $loaded_image["img"];
//Berechne Zoomfaktor
$zoom_data = getzoomfactor($filename, 200, 200, 0);
//preecho($zoom_data);
//Zoom
$new_picture = zoompicture($img, $zoom_data);
//Speicher Bild
imagetofile($thumbfilename, "jpg", $new_picture, 10000, 60, 0);
}
//zunächst wird von einem Fehler ausgegangen, wenn Upload OK-> $error=0;
//Teste ob eine Datei hochgeladen wurde
if (isset($_FILES["file"]["error"]) and isset($_FILES["file"]["name"])) {
if ($_FILES["file"]["error"] == 0) {
//Teste Dateiendung
$imgtype = imagetype($_FILES["file"]["name"]);
if ($imgtype != "UNKNOWN") {
$_SESSION["image_type"] = $imgtype;
$filename = $_SESSION["temp_image_file_path"] . ".{$imgtype}";
$_SESSION["image_temp_filename"] = $filename;
$_SESSION["image_temp_modified_filename"] = $_SESSION["temp_image_file_path"] . ".modified.{$imgtype}";
//Kopiere Datei
if (move_uploaded_file($_FILES["file"]["tmp_name"], $_SESSION["image_temp_filename"])) {
$msg = "Datei ist valide und wurde erfolgreich hochgeladen.\n";
//Zoomfaktor für Anzeige bestimmen
$retval = getzoomfactor($filename, $max_width, $max_height, $debug);
$_SESSION["zoom_factor"] = $retval["zoom_factor"];
$_SESSION["image_width_org"] = $retval["image_width_org"];
$_SESSION["image_height_org"] = $retval["image_height_org"];
$_SESSION["image_width_show"] = $retval["image_width_new"];
$_SESSION["image_height_show"] = $retval["image_height_new"];
$error = 0;
} else {
$msg = "Möglicherweise eine Dateiupload-Attacke!\n";
}
} else {
$msg = "Fehler3 nicht unterstützter Dateityp<br>";
}
} else {
$msg = "Fehler1: Keine Datei hochgeladen!<br>";
}
}
if ($postdata !== false) {
// Get the data
$imageData = $postdata;
// Remove the headers (data:,) part.
// A real application should use them according to needs such as to check image type
$filteredData = substr($imageData, strpos($imageData, ",") + 1);
// Need to decode before saving since the data we received is already base64 encoded
$unencodedData = base64_decode($filteredData);
//echo "unencodedData".$unencodedData;
// Save file. This example uses a hard coded filename for testing,
// but a real application can specify filename in POST variable
$fp = fopen($_SESSION["image_temp_filename"], 'wb');
fwrite($fp, $unencodedData);
fclose($fp);
$retval = getzoomfactor($_SESSION["filename"], $max_width, $max_height, $debug);
$_SESSION["zoom_factor"] = $retval["zoom_factor"];
$_SESSION["image_width_org"] = $retval["image_width_org"];
$_SESSION["image_height_org"] = $retval["image_height_org"];
$_SESSION["image_width_show"] = $retval["image_width_new"];
$_SESSION["image_height_show"] = $retval["image_height_new"];
//$size = getimagesize('images/'.$_SESSION["filename"]);
/*
$_SESSION["dim_org_x"]=$size[0];
$_SESSION["dim_org_y"]=$size[1];
if ($size[0]>320 || $size[1]>240) {
$src_img = imagecreatefrompng('images/'.$_SESSION["filename"]);
$dst_img = imagecreatetruecolor(320,240);
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, 320, 240, $size[0], $size[1]);
//$lastpoint=strrpos($_SESSION["filename"],".");
//$newfilename='images/small'.substr ( $_SESSION["filename"] , 0 , $lastpoint ).".png";
