jquery.realperson.java

package jquery;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * RealPerson submission processing.
 */
public class RealPerson extends HttpServlet {

	protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		if (rpHash(request.getParameter("defaultReal")).equals(
				request.getParameter("defaultRealHash"))) {
			// Accepted
		}
		else {
			// Rejected
		}
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

	/**
	 * Compute the hash value to check for "real person" submission.
	 * 
	 * @param  value  the entered value
	 * @return  its hash value
	 */
	private String rpHash(String value) {
		int hash = 5381;
		value = value.toUpperCase();
		for(int i = 0; i < value.length(); i++) {
			hash = ((hash << 5) + hash) + value.charAt(i);
		}
		return String.valueOf(hash);
	}
}