function main()
{
if (strtolower($_SERVER["REQUEST_METHOD"]) == "get") {
$data = null;
$this->view->render("tmpl_messenger", $data);
} else {
$IC = new ImageProcessor();
$file_path = $IC->uploadImage();
$response = array();
$protect = isset($_POST["protect"]) ? $_POST["protect"] : null;
if ($protect == 'on') {
$signature = $_POST["signature"];
$password = $_POST["pw"];
$image_data = $IC->inject($file_path, $signature, $password);
$im = imagecreatefromstring($image_data);
imagealphablending($im, true);
imagesavealpha($im, true);
$file_path = $file_path . 'mod';
imagepng($im, $file_path);
imagedestroy($im);
} else {
$signature = $_POST["signature"];
if (empty($signature)) {
$signature = $_POST["user_info"];
}
$image_data = $IC->inject($file_path, $signature);
$im = imagecreatefromstring($image_data);
imagealphablending($im, true);
imagesavealpha($im, true);
$file_path = $file_path . 'mod';
imagepng($im, $file_path);
imagedestroy($im);
}
$response["status"] = "success";
$response["file"] = $file_path;
echo json_encode($response);
}
}
