Joomla contacts component for displaying and send email to your site contacts list is a very nice and simple component who do the work well. one it major disadvantage is the lack of a good captcha spam protection.

Today, using the captch images engine com_securityimages by cedric_walter its getting even easier to apply it to any joomla component and module.   the component security images has a built in hack for the joomla contacts component which never worked for me. you can try the develper forums but dont expect much support there as well... :) guees they are busy.

step 1 - install com_securityimages

download and install the component like any other component in joomla.

enter the component "Edit General Setting" menu option and choose you Captcha type and check your settings.

step 2 - Add the Captch image into contact.html.php file

edit the file at contact.html.php at components/com_contacts/ with your php editor.

add the following code in line 680

 
<?php 
 
     if (file_exists($mosConfig_absolute_path.'/administrator/components/com_securityimages/client.php')) {
 
     include ($mosConfig_absolute_path.'/administrator/components/com_securityimages/client.php'); 
 
     }
 
     
 
     $packageName = 'securityChooseUniqueKeyName'; 
 
     ?>
 
     <?php echo insertSecurityImage($packageName); ?>
 
     <?php echo getSecurityImageText($packageName); ?>

step 3 - insert the check/validation code into contact.php

edit the file at contact.php at components/com_contacts/ with your php editor.

add the following code in line 360

 
if (file_exists($mosConfig_absolute_path.'/administrator/components/com_securityimages/server.php')) {
 
  include ($mosConfig_absolute_path.'/administrator/components/com_securityimages/server.php');
 
  }
 
  $packageName = 'securityChooseUniqueKeyName';
 
$security_refid = mosGetParam( $_POST, $packageName.'_refid', '' );
 
$security_try = mosGetParam( $_POST, $packageName.'_try', '' );
 
$security_reload = mosGetParam( $_POST, $packageName.'_reload', '' );
 
 
 
$checkSecurity = checkSecurityImage($security_refid, $security_try);

at line 437 change the code to:

 
if (!$checkSecurity || !$email || !$text || ( JosIsValidEmail( $email ) == false ) ) {
 
   mosErrorAlert( _CONTACT_FORM_NC );
 
  } 
 

Last update : Saturday, 13 October 2007

Keywords : joomla, captcha, component, contact, security, php

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