70kft/craft-emailobfuscate

EmailObfuscate plugin for Craft CMS

A plugin to obfuscate email addresses in strings. Specifically intended to parse rich text field output in templates, find, and replace mailto links with obfuscated gobbledygook.

Super-basic usage. It's just a filter so use like so:

{{ entry.body|emailObfuscate }}

The method of obfuscation is borrowed directly from a person.

Credit

Thanks to Matt Stauffer since I took some notes from his Twig LinkHelpers plugin and to Barrel Strength Design's Sprout Encode Email plugin which I would have used instead of writing EmailObfuscate if only it handled searching through RTE output to find/replace mailto links.

craft-emailobfuscate's Issues

Auto convert address to mailto link as well

My content editors are lazy or unaware about mailto links, so I'd like the ability for it to search for email addresses patterns not mailto links. Then to obfuscate them and then wrap the mailto code around it. Is this an option you could help with?

I'm used to having this feature from ExpressionEngine and it's Auto Linker plugin.

Error if empty

I have a text field where|emailObfuscate which returns a error when the field is empty:

DOMDocument::loadHTML(): Empty string supplied as input

/craft/plugins/emailobfuscate/twigextensions/EmailObfuscateTwigExtension.php(54)

42      * @param string $string
43      * @return string 
44      *
45      */ 
46     public function emailObfuscate($string)
47     {
48         // Start the dom object
49         $dom = new DOMDocument();
50         $dom->recover = true;
51         $dom->substituteEntities = true;
52 
53         // Feed the content to the dom object
54         $dom->loadHTML($string);
55 
56         // Check each link
57         foreach ($dom->getElementsByTagName('a') as $anchor) {
58 
59             // Get the href
60             $href = $anchor->getAttribute('href');
61 
62             // // Check if it's a mailto link
63             if (substr($href, 0, 7) == 'mailto:') {
64 
65                 $anchor = $dom->saveHTML($anchor);
66                 $encoded = $this->js_rot13_encode($anchor);

It is preventable by wraping the field in a conditional. But it would be neat if the filter recognices a empty field.

PHP Warning when passing in an HTML string with certain HTML5 elements.

The loadHTML function in EmailObfuscateTwigExtension:emailObfuscate() doesn't recognize certain HTML5 elements, such as figure, which is inserted by another Craft plugin that we are using for image alignment. We got around this by calling this before the loadHTML function:
libxml_use_internal_errors(true);

And this after:
libxml_use_internal_errors(false);

See this article for more information:
http://stackoverflow.com/questions/9149180/domdocumentloadhtml-error