[wp-hackers] Forget Commenter's Info

[Mark Jaquith]

I wrote this hack for an optional "forget_cookie" option in the comments 
form that will prevent the commenter's info from being saved to a cookie 
(for public computer situations).  I also wrote a function to manually 
forget a user's info (without submitting a comment) in the case that a 
user sees that their info has been saved and wants to get rid of it.  
The first part is about 4 extra lines of code in wp-comments-post.php

Carthik thought it might be worth putting in the core, but honestly I 
kind of forgot about it until now.

http://www.scriptygoddess.com/archives/2004/06/29/forget-user-info/

Included is a patch for current CVS with slightly updated code (using 
COOKIEPATH instead of $cookiepath, mostly).
-------------- next part --------------
Index: wp-comments-post.php
===================================================================
RCS file: /cvsroot/cafelog/wordpress/wp-comments-post.php,v
retrieving revision 1.19
diff -u -r1.19 wp-comments-post.php
--- wp-comments-post.php	11 Oct 2004 22:07:09 -0000	1.19
+++ wp-comments-post.php	12 Oct 2004 03:38:49 -0000
@@ -87,9 +87,15 @@
 	wp_notify_postauthor($comment_ID, 'comment');
 }
 
+if($_POST['forget_cookie'] == 'forget'){
+setcookie('comment_author_' . COOKIEHASH, '', time()-60000, COOKIEPATH);
+setcookie('comment_author_email_' . COOKIEHASH, '', time()-60000, COOKIEPATH);
+setcookie('comment_author_url_' . COOKIEHASH, '', time()-60000, COOKIEPATH);
+} else {
 setcookie('comment_author_' . COOKIEHASH, stripslashes($author), time() + 30000000, COOKIEPATH);
 setcookie('comment_author_email_' . COOKIEHASH, stripslashes($email), time() + 30000000, COOKIEPATH);
 setcookie('comment_author_url_' . COOKIEHASH, stripslashes($url), time() + 30000000, COOKIEPATH);
+}
 
 header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
 header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');