OWASP DATASET/BenchmarkTest00048.java

/**
 * OWASP Benchmark v1.2
 *
 * <p>This file is part of the Open Web Application Security Project (OWASP) Benchmark Project. For
 * details, please see <a
 * href="https://owasp.org/www-project-benchmark/">https://owasp.org/www-project-benchmark/</a>.
 *
 * <p>The OWASP Benchmark is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation, version 2.
 *
 * <p>The OWASP Benchmark is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU General Public License for more details.
 *
 * @author Dave Wichers
 * @created 2015
 */
package org.owasp.benchmark.testcode;

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

@WebServlet(value = "/xss-00/BenchmarkTest00048")
public class BenchmarkTest00048 extends HttpServlet {

    private static final long serialVersionUID = 1L;

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

    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // some code
        response.setContentType("text/html;charset=UTF-8");

        String queryString = request.getQueryString();
        String paramval = "BenchmarkTest00048" + "=";
        int paramLoc = -1;
        if (queryString != null) paramLoc = queryString.indexOf(paramval);
        if (paramLoc == -1) {
            response.getWriter()
                    .println(
                            "getQueryString() couldn't find expected parameter '"
                                    + "BenchmarkTest00048"
                                    + "' in query string.");
            return;
        }

        String param =
                queryString.substring(
                        paramLoc
                                + paramval
                                        .length()); // 1st assume "BenchmarkTest00048" param is last
        // parameter in query string.
        // And then check to see if its in the middle of the query string and if so, trim off what
        // comes after.
        int ampersandLoc = queryString.indexOf("&", paramLoc);
        if (ampersandLoc != -1) {
            param = queryString.substring(paramLoc + paramval.length(), ampersandLoc);
        }
        param = java.net.URLDecoder.decode(param, "UTF-8");

        response.setHeader("X-XSS-Protection", "0");
        response.getWriter().print(param.toCharArray());
    }
}