text: /**
  * OWASP Benchmark Project v1.2
  *
  * 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>.
  *
  * 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.
  *
  * 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="/weakrand-02/BenchmarkTest00985")
  public class BenchmarkTest00985 extends HttpServlet {
  	
  	private static final long serialVersionUID = 1L;
  	
  	@Override
  	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  		response.setContentType("text/html;charset=UTF-8");
  		javax.servlet.http.Cookie userCookie = new javax.servlet.http.Cookie("BenchmarkTest00985", "whatever");
  		userCookie.setMaxAge(60*3); //Store cookie for 3 minutes
  		userCookie.setSecure(true);
  		userCookie.setPath(request.getRequestURI());
  		userCookie.setDomain(new java.net.URL(request.getRequestURL().toString()).getHost());
  		response.addCookie(userCookie);
  		javax.servlet.RequestDispatcher rd = request.getRequestDispatcher("/weakrand-02/BenchmarkTest00985.html");
  		rd.include(request, response);
  	}
  
  	@Override
  	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  		response.setContentType("text/html;charset=UTF-8");
  	
  		javax.servlet.http.Cookie[] theCookies = request.getCookies();
  		
  		String param = "noCookieValueSupplied";
  		if (theCookies != null) {
  			for (javax.servlet.http.Cookie theCookie : theCookies) {
  				if (theCookie.getName().equals("BenchmarkTest00985")) {
  					param = java.net.URLDecoder.decode(theCookie.getValue(), "UTF-8");
  					break;
  				}
  			}
  		}
  
  		String bar = new Test().doSomething(request, param);
  		
  		try {
  			java.util.Random numGen = java.security.SecureRandom.getInstance("SHA1PRNG");
          	double rand = getNextNumber(numGen);
  			
  			String rememberMeKey = Double.toString(rand).substring(2); // Trim off the 0. at the front.
  			
  			String user = "SafeDonatella";
  			String fullClassName = this.getClass().getName();
  			String testCaseNumber = fullClassName.substring(fullClassName.lastIndexOf('.')+1+"BenchmarkTest".length());
  			user+= testCaseNumber;
  			
  			String cookieName = "rememberMe" + testCaseNumber;
  			
  			boolean foundUser = false;
  			javax.servlet.http.Cookie[] cookies = request.getCookies();
  			if (cookies != null) {
  				for (int i = 0; !foundUser && i < cookies.length; i++) {
  					javax.servlet.http.Cookie cookie = cookies[i];
  					if (cookieName.equals(cookie.getName())) {
  						if (cookie.getValue().equals(request.getSession().getAttribute(cookieName))) {
  							foundUser = true;
  						}
  					}
  				}
  			}
  
  			if (foundUser) {
  				response.getWriter().println(
  "Welcome back: " + user + "<br/>"
  );
  			} else {			
  				javax.servlet.http.Cookie rememberMe = new javax.servlet.http.Cookie(cookieName, rememberMeKey);
  				rememberMe.setSecure(true);
  				rememberMe.setHttpOnly(true);
  				rememberMe.setPath(request.getRequestURI()); // i.e., set path to JUST this servlet 
  															 // e.g., /benchmark/sql-01/BenchmarkTest01001
  				request.getSession().setAttribute(cookieName, rememberMeKey);
  				response.addCookie(rememberMe);
  response.getWriter().println(
  user + " has been remembered with cookie: " + rememberMe.getName() 
  						+ " whose value is: " + rememberMe.getValue() + "<br/>"
  );
  			}
  	    } catch (java.security.NoSuchAlgorithmException e) {
  			System.out.println("Problem executing SecureRandom.nextDouble() - TestCase");
  			throw new ServletException(e);
  	    }
  		
  		response.getWriter().println(
  "Weak Randomness Test java.security.SecureRandom.nextDouble() executed"
  );
  
  	}  // end doPost
  
  		double getNextNumber(java.util.Random generator) {
  			return generator.nextDouble();
  		}
  	
      private class Test {
  
          public String doSomething(HttpServletRequest request, String param) throws ServletException, IOException {
  
  		String bar = param;
  		if (param != null && param.length() > 1) {
  		    StringBuilder sbxyz77085 = new StringBuilder(param);
  		    bar = sbxyz77085.replace(param.length()-"Z".length(), param.length(),"Z").toString();
  		}
  
              return bar;
          }
      } // end innerclass Test
  
  } // end DataflowThruInnerClass
  