Announcing Caesarmail for WordPress
March 15, 2006 – 12:45 pmThis is my first public WordPress plugin: Caesarmail. It's yet another email obfuscation plugin, but instead of using ASCII or hex code substitutions, it uses random-offset Caesar ciphers. When Caesarmail sees an email link that looks like this:
<a href=" mailto:someone@somewhere.com">email me</a>;
it converts it into something that looks like this:
<a href="javascript:degrease('BxvnxwneBxvnFqnAnflxv',9)">email me</a>
The offset is randomly generated with each page view; consequently, the degrease() link is never (or rarely) the same twice.
Caesarmail can be downloaded from here.
To use Caesarmail, simply:
- Download and unpack the archive.
- Upload the entire Caesarmail folder to your WordPress plugin directory (usually http://yourblog/wp-content/plugins/).
- Go to the plugin management page for your WordPress installation - find "Caesarmail" and click "Activate."
To use Caesarmail, all you have to do is include a mailto: link in posts or comments. Caesarmail will automatically convert them for you.
You can test Caesarmail by commenting on this post with a mailto: link, or by mousing over and clicking this link (you can also contact me through that link, obviously).
This is my first plugin, and comments/criticisms/suggestions are more than welcome.
7 Responses to “Announcing Caesarmail for WordPress”
Does it works on email addresses on sidebar?
By Netwalker on Mar 15, 2006
Not at the moment - I’ll investigate and see if I can get it easily working for the sidebar.
By Preston on Mar 15, 2006
It appears that you can use caesarmail in the sidebar, but it’s not automatic. You need to call the function directly, like so:
<?php
$string = caesarmail(‘<a href=” mailto:email@address.com”>email link</a>‘);
echo $string;
?>
(Without the space in the mailto: link - I had to add it because caesarmail is encrypting it.)
The function caesarmail() only takes one argument - the string of text which is to be searched and converted into encrypted email addresses. So if, for example, you wanted to do a list of email addresses, you could do this:
<?php
$list = ‘<ul>
<li> <a href=” mailto:someone@somewhere.com” rel=”nofollow”>My work address</a>
<li> <a href=” mailto:somewhere@else.com”>My home address</a>
</ul>’;
$string = caesarmail($list);
echo $string;
?>
That should work. Let me know if it works out for you.
By Preston on Mar 15, 2006
Thanks!
I’ll put it in my blog to test it.
By Netwalker on Mar 15, 2006
Thats fantastic! Should help cut down on the spam we’ve all been getting!
By Alex on Sep 26, 2006
Does it have a way to implement a noscript tag?
By Jonathan on Dec 29, 2006