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Thread: Problem in a web that uses javascript in his login form

  1. #1
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    Unhappy Problem in a web that uses javascript in his login form

    Hello:

    POST CROSS POSTED HERE TO:

    http://www.codeguru.com/forum/showthread.php?t=513068

    THANKS

    im new on this forum, but i used it sometimes to solve some problems, now i have one that i cant solve it.

    I want to logon in a web witch uses a javascript code in his logon form, i tried to pass the logon with a post method code like i have done in other webs login:

    String url="http://www.THEURLWHEREIWANTTOLOGIN.com";
    				HashMap<String, String> data = new HashMap<String, String>();
    				data.put("NAME", "AAAAAAAA");
    				data.put("PASS", "BBBBBBBBBB");
    				URL siteUrl = new URL(url);
    				HttpURLConnection conn = (HttpURLConnection) siteUrl.openConnection();
    				conn.setRequestMethod("POST");
    				conn.setDoOutput(true);
    				conn.setDoInput(true);
     
    				DataOutputStream out = new DataOutputStream(conn.getOutputStream());
     
    				Set keys = data.keySet();
    				Iterator keyIter = keys.iterator();
    				String content = "";
    				for(int i=0; keyIter.hasNext(); i++) {
    					Object key = keyIter.next();
    					if(i!=0) {
    						content += "&";
    					}
    					content += key + "=" + URLEncoder.encode(data.get(key), "UTF-8");
    				}
    				out.writeBytes(content);
    				out.flush();
    				out.close();
    				BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));


    but in this web that have a login with javascript code doesnt work, and i dont know how to do it. code of login:

    <!-- login --><form method="post" action="login.phtml" name="login" style="display:inline"><table border="0" cellpadding="0" cellspacing="1"><tr><td align="right" valign="middle" class="text">Nombre de usuario:&nbsp;<br /><a href="signup.phtml" class="links" title="Registrar">¿Aún no te has registrado?</a></td><td align="right" valign="middle"><input type="text" name="login" size="10" maxlength="10" tabindex="1" style="width:80px;" />&nbsp;</td></tr><tr><td align="right" valign="middle" class="text">Contraseña:&nbsp;<br /><a href="recoverPassword.phtml" class="links" title="Recuperar tu contraseña">¿te has olvidado?</a></td><td align="right" valign="middle">
      <input type="password" name="pass" size="10" maxlength="8" style="width:80px;" tabindex="2" onkeypress="checkEnter(event, 'login')" />&nbsp;</td></tr><tr><td colspan="2" align="right"><input type="hidden" name="action" value="login" />
          <script language="JavaScript" type="text/javascript">
    	<!--
    document.write("<input type=\"hidden\" name=\"&gt;&gt; Login\" value=\"-1\" \/>");document.write("<a href=\"javascript:submitForm('login','&gt;&gt; Login')\;\"");document.write(" tabindex=\"3\"");document.write(" class=\"login\"");document.write(" title=\"&gt;&gt; Login\"");document.write(">");document.write("&gt;&gt; Login");document.write("<\/a>");
            //-->
          </script>
          <noscript>
    <input type="submit" name="&gt;&gt; Login_x" value="&gt;&gt; Login" /></noscript>
    &nbsp;</td></tr></table></form><script language="javascript" type="text/javascript">
    <!--
    document.login.elements[0].focus();
    // -->
    </script><!-- login end -->

    Someone can help me? thanks.
    Last edited by kamarilla; June 1st, 2011 at 04:53 PM. Reason: adding cros post


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Problem in a web that uses javascript in his login form

    doesnt work
    Can you explain what happens? Do you get error messages? Or bad results? Can you post what you get back or explain what happens?

    Have you looked what the HTML page that the browser returns to the server so that you can generate the same response as the browser does?
    Last edited by Norm; May 31st, 2011 at 05:20 PM.

  3. #3
    Super Moderator Norm's Avatar
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    Default Re: Problem in a web that uses javascript in his login form

    This thread has been cross posted here:

    http://www.codeguru.com/forum/showthread.php?t=513068

    Although cross posting is allowed, for everyone's benefit, please read:

    Java Programming Forums Cross Posting Rules

    The Problems With Cross Posting


  4. #4
    mmm.. coffee JavaPF's Avatar
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    Default Re: Problem in a web that uses javascript in his login form

    What happens when you attempt to login?

    Without knowing the URL and having some valid login details, it's almost impossible for us to pinpoint the problem.

    You say you have written other programs which have worked in the past. If this is the case, what's the difference between this one and the working one?
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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  5. #5
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    Default Re: Problem in a web that uses javascript in his login form

    Quote Originally Posted by Norm View Post
    This thread has been cross posted here:
    Problem login in a web login for that uses javascript - CodeGuru Forums

    Although cross posting is allowed, for everyone's benefit, please read:

    Java Programming Forums Cross Posting Rules

    The Problems With Cross Posting
    Hello norm, its true that i have posted in other forum the same ask. i thought that posting on diferent forum , one of them willgave me the answer and i could post it on the other.

    Quote Originally Posted by JavaPF View Post
    What happens when you attempt to login?

    Without knowing the URL and having some valid login details, it's almost impossible for us to pinpoint the problem.

    You say you have written other programs which have worked in the past. If this is the case, what's the difference between this one and the working one?
    JavaPF:

    1- when i try to login it tells me that i have done a bad login, that i have to retry again. (Tipical message when you fail login on a web)
    2- the url where is the login form is ---> URL of the web
    3- i forgot to tell in my first post that i have done it works with a login form that didn't use javascript(only a tipical form with inputs and a button). In this case the login form is composed with input fields and a script on javascript(it works "like" button).

    thanks for your replies. I will be very if someone can help me. Thanks

  6. #6
    Super Moderator Norm's Avatar
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    Default Re: Problem in a web that uses javascript in his login form

    Its ok to cross post if you post a link to the other site so anyone trying to help can look at the other site to see if it has already been answered and if so save time by not answering it again.

    Have you looked what the browser returns to the server when it has read the HTML page with the JS? You need to see that so that you can generate the same response as the browser does?

  7. #7
    Super Moderator copeg's Avatar
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    Default Re: Problem in a web that uses javascript in his login form

    i thought that posting on diferent forum , one of them willgave me the answer and i could post it on the othe
    I highly recommend the reading the links in Norm's post. You might get an answer with one of the forums you posted to, but there is potential to waste a lot of other people's time who spend time trying to help you with your problem where it could be answered elsewhere. Your problem may not be solved at this point, but without full disclosure of other locations you've posted the contributors to the forum have no idea and may very well move on to one of the other dozens of unsolved posts. This is all explained in detail in the following link: The problems with cross-posting

  8. #8
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    Default Re: Problem in a web that uses javascript in his login form

    Quote Originally Posted by Norm View Post
    Its ok to cross post if you post a link to the other site so anyone trying to help can look at the other site to see if it has already been answered and if so save time by not answering it again.

    Have you looked what the browser returns to the server when it has read the HTML page with the JS? You need to see that so that you can generate the same response as the browser does?
    sorry i dont know hot to do that. can you help me?
    I have been reading the script of login and it look like it write a doc, and then it does this : document.login.elements[0].focus(); i doesn't undestand nothing.

  9. #9
    Super Moderator Norm's Avatar
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    Default Re: Problem in a web that uses javascript in his login form

    You need to understand what a browser returns to the server so that you can do the same thing.
    One way to get some insight is to save the page, edit it and change the <form tag's action= to get vs post, load it in a browser, fill in the fields and press login. The URL will show in the browser's location window.

    Your problem now is in the HTML and Javascript.
    It has nothing to do with Java programming.

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