Problem with recaptcha integration with Spring MVC

Deepaks Deshpande

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posted 11 years ago

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Dear All,
I am integrating recaptcha in a spring mvc application. When ever i print out the recaptcha_challange_field and the recaptcha_response_field to the console, i find that the recaptcha_response_field is printing thecaptcha in some encrypthjed format and the recaptcha_response_field as normal text and also i find that even though i have entered the captcha correctly, it always says wrong captcha. Here is my code

Thsi is my login form controller:

@RequestMapping(value="home.htm", method=RequestMethod.POST)
    public String processEmailLogin(
			@ModelAttribute("examLoginForm") ExamLoginDetails examLoginDetails,			
			BindingResult result, 
			Model model,
			@RequestParam("recaptcha_challenge_field") String challangeField, 
			@RequestParam("recaptcha_response_field") String responseField, 
			HttpServletRequest request, SessionStatus sessionStatus) {
    	
    	ReCaptchaImpl reCaptcha = new ReCaptchaImpl();
    	reCaptcha.setPrivateKey("PRIVATE_KEY");
    	
        /*String challenge = request.getParameter("recaptcha_challenge_field");
        String response = request.getParameter("recaptcha_response_field");*/
        
        String remoteAddr = request.getRemoteAddr();
        logger.info("Remote machine IP address is : "+remoteAddr);
        
        String emailIdForm = request.getParameter("email"); 
        ReCaptchaResponse reCaptchaResponse = reCaptchaService.checkAnswer(remoteAddr, challangeField, responseField);
        
        logger.info("Shown captcha is : "+challangeField);
        logger.info("Entered captcha is : "+responseField);
        logger.info("The validated recaptcha response is : "+reCaptchaResponse.isValid());
        
        boolean correctAnswer = false;
        correctAnswer = challangeField.equalsIgnoreCase(responseField);
        
        logger.info("Correct answer : "+correctAnswer);
        logger.info(":::::: LOADED Login Form CONTROLLER ::::::");
        
        if(reCaptchaResponse.isValid()) {
        	model.addAttribute("message", "wrong captcha");
            logger.info("Incorrect captcha");
            return "login/login";
        } 
        else {
        	logger.info("::::: Checking captcha response to validate :::::");
            model.addAttribute("message", "correct captcha");
            LoginService loginService = (LoginService) ctx.getBean("loginService");
            examLoginDetails = loginService.performLogin(emailIdForm);
            logger.info("Email id is ::::::::::: "+examLoginDetails.getEmailId());
            return "home/home";
        }
    }

My login page is this:

<%@ page import="net.tanesha.recaptcha.ReCaptcha" %>
<%@ page import="net.tanesha.recaptcha.ReCaptchaFactory" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="./jsp/scripts/jquery-1.9.1.js"></script>
<script type="text/javascript" src="./jsp/scripts/jquery-ui-1.10.3.custom.min.js"></script>
<link rel="stylesheet" type="text/css" href="./jsp/styles/jquery-ui-1.10.3.custom.min.css" />
<link rel="stylesheet" type="text/css" href="./jsp/styles/page-style.css" />
<link rel="stylesheet" type="text/css" href="./jsp/styles/tooltip.css" />
</head>
<body>
<form action="home.htm" method="post" name="examLoginForm">
<fieldset class="ui-widget ui-widget-content ui-corner-all">
<legend class="ui-widget-header ui-corner-all">Online Examination</legend>
<table  class="ui-widget ui-helper-clearfix">
 	<tr>
 		<td><label for="email">Please enter your Email Id : </label></td>
 		<td><input class="ui-widget-content ui-corner-all" type="text" id="emailId" name="email" title="Please provide the email id you used to register with us to take the exam." ></td>
 	</tr>
 
 				<tr>
 					<td></td>
 					<td>
 					
 					  <script type="text/javascript" src="http://www.google.com/recaptcha/api/challenge?k=PUBLIC_KEY"></script>
   					<noscript>
      				<iframe src="http://www.google.com/recaptcha/api/noscript?k=PUBLIC_KEY" height="300" width="500" frameborder="0"></iframe><br>
      				<textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
      				<input type="hidden" name="recaptcha_response_field" value="manual_challenge">
   					</noscript>
 						<%-- <%
 							ReCaptcha c = ReCaptchaFactory.newReCaptcha("PUBLIC_KEY","PRIVATE_KEY", false); 
 							out.print(c.createRecaptchaHtml(null, null));
 						 %> --%>
 					</td>
 					<td></td>
 				</tr>
 
 	<tr>
 		<td></td>
 		<td><span id="LoginBtn"><input class="ui-helper-clearfix ui-corner-all ui-button ui-button-text ui-state-default ui-state-focus ui-state-active ui-state-hover" type="submit" id="login" value="Take Exam" /></span></td>
 		<td></td>
 	</tr>
 </table>
</fieldset>
</form>
<div id="dialog" title="Confirm Your Email ID">
 <p><span class="ui-widget ui-widget-content ui-icon ui-icon-alert" style="float:left; margin:0 7px 20px 0;"></span>Are you sure that this is the Email Id you have used to register yourself with us?</p>
</div>

</body>
</html>

The bean declaration for recaptcha is as follows:

The message i see on my console is this:

I am stuck. Please help me resolve this problem.
Thank you.

Regards,
Deepak

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