package net.curisit.securis;

import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import net.curisit.securis.utils.LicUtils;

import org.apache.commons.io.IOUtils;

public class LicenseValidator {

	private byte[] LOGO_SECRET;

	public LicenseValidator() {
		try {
			LOGO_SECRET = "Logo ipsum s3cr3t test áíóú".getBytes("utf-8");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
	}

	/**
	 * @return true if logo is correct
	 */
	public String getCrcLogo() {
		InputStream is = getClass().getClassLoader().getResourceAsStream("images/logo_customer.png");
		try {
			String shaLogo = LicUtils.sha256(IOUtils.toByteArray(is), LOGO_SECRET);
			return shaLogo;
		} catch (IOException e) {
			e.printStackTrace();
			return null;
		}
	}
}