Can I use CAPTCHA in my login screen?

57 peeps have read this, can no-one help me please?

So many sites now use Captcha as part of the login process, has no-one been able to get it sorted for the login screen?

57 peeps have read this, can no-one help me please?

A lot of sites use it to register, as it stops the bots getting into the sites.
Once registared there is no need to use the captcha.
Unless I am mistaken, if so, Put up a url of a site that uses it once you have regitesterd

Can I?

Hello,
I am absolutely sure that SERGEY´s team is able to something similar to the following login code changes to be used on the HK competition product. HTH Hajo
quote
I have altered the login.php file in both the graphical and text templates to enable CAPTCHA on the login page with 3 sets of replacements as below:-

1. --------------------------
   
   After the first occurrence of:-
   $bValidate = TRUE;
   Insert the following:-
   // Get captcha value
   
   $captcha = ew_StripSlashes(@$_POST["captcha"]);
   // Check captcha value from form
   
   if ($captcha <> $_SESSION["EW_CAPTCHA_CODE"]) { // Captcha unmatched
   
   $_SESSION[EW_SESSION_MESSAGE] = "Please enter the validation code shown"; // Set message
   
   $bValidate = FALSE; // Reset action, do not login if captcha unmatched
   
   }
   
2. ---------------------------
   
   Replace the javascript function:-
   function ew_ValidateForm(fobj) {
   
   if (!ew_HasValue(fobj.username)) {
   
   if (!ew_OnError(fobj.username, "<!--##@EnterUid##-->"))
   
   return false;
   
   }
   
   if (!ew_HasValue(fobj.password)) {
   
   if (!ew_OnError(fobj.password, "<!--##@EnterPwd##-->"))
   
   return false;
   
   }
   
   return true;
   
   }
   With the following function:-
   function ew_ValidateForm(fobj) {
   
   if (!ew_HasValue(fobj.username)) {
   
   if (!ew_OnError(fobj.username, "<!--##@EnterUid##-->"))
   
   return false;
   
   }
   
   if (!ew_HasValue(fobj.password)) {
   
   if (!ew_OnError(fobj.password, "<!--##@EnterPwd##-->"))
   
   return false;
   
   }
   
   if (fobj.captcha && !ew_HasValue(fobj.captcha)) {
   
   if (!ew_OnError(fobj.captcha, "Please enter the validation code shown"))
   
   return false;
   
   }
   
   return true;
   
   }
   
3. ---------------------------
   
   Replace the line:-
   <td colspan="2" align="center"><span class="phpmaker"><input type="submit" name="submit" id="submit" value="<!--##=ewBtnCaption(LANG.Phrase("Login"))##-->"></span></td>
   With the following lines:-
   <td colspan="2" align="center">
   
   <!-- captcha html (begin) -->
   
   <table>
   
   <tr>
   
   <td>
   
   <?php
   
   if (phpversion() < "4.3.2") {
   
   echo "<p class=\"ewmsg\">Warning: CAPTCHA extension is enabled but PHP version on this server is " . phpversion() . " only. The extension requires PHP >= 4.3.2.</p>";
   
   }
   
   ?>
   
   <div><img src="ewcaptcha.php" alt="Security Image" width="130" height="40" /></div>
   <span class="phpmaker">Please enter the validation code shown<span class='ewmsg'>&nbsp;*</span></span>
   <input type="text" name="captcha" id="captcha" size="30">
   
   </td>
   
   </tr>
   
   </table>
   

<!-- captcha html (end) -->

<span class="phpmaker"><input type="submit" name="submit" id="submit" value="<!--##=ewBtnCaption(LANG.Phrase("Login"))##-->"></span></td>
unquote