[Plugin: Captcha] Capcha Buddypress Integration

This captcha plugin was the only one that I considered great and worked with no conflicts with other plugins on my site. However I have buddypress and “as is” currently it does not allow for the Buddypress registration verification.

Based on this guide:
http://wordpress.org/support/topic/set-custom-registration-form-url-for-captcha?replies=2
I wrote some code that works for me. Thought it may be helpful to others.

Tested on:
WordPress v. 3.4.1
BuddyPress v. 1.5.7

Steps:
1. Download, activate captcha plugin
2. Add the following code to your functions.php

///////////////////////////////////////////////////////////////
//  captcha - buddypress - registration inregration - start
///////////////////////////////////////////////////////////////

function bp_reg_captcha() {
  global $bp;
  if( function_exists( 'cptch_display_captcha_custom' ) ) {
	echo '<div class="register-section" style="float:left; width:48%;">';
	echo '<label>Human Verification (required)</label>';
	if (!empty($bp->signup->errors['captcha_response_field'])) {
	  echo '<div class="error">';
	  echo "Please complete the verification.";
	  echo '</div>';
	}
	echo "<input type='hidden' name='cntctfrm_contact_action' value='true' />";
	echo cptch_display_captcha_custom();
	echo '</div>';
  }
}

function bp_reg_captcha_validate($errors) {
	global $bp;
	if(function_exists( 'cptch_check_custom_form' ) && cptch_check_custom_form() !== true ) {
	  $bp->signup->errors['captcha_response_field'] = "Error.";
	}
	return;
}

add_action( 'bp_before_registration_submit_buttons', 'bp_reg_captcha' );
add_action( 'bp_signup_validate', 'bp_reg_captcha_validate' );

///////////////////////////////////////////////////////////////
//  captcha - buddypress - registration inregration - end
///////////////////////////////////////////////////////////////

Thanks for a great plugin.

Cheers,

http://wordpress.org/extend/plugins/captcha/