Email Obfuscator

A text filter for automatic email obfuscation using the well-established Javascript and a CSS fallback:

• For Javascript-enabled browsers: ROT13 ciphering
• For non-Javascript browsers: CSS reversed text direction

Contents

• Installation & usage
  • Common installation step
  • Additional platform specific steps
    • Standalone
    • Laravel 5
    • Twig
  • Your platform not listed here?
• Credits

Installation & usage

Common installation step

Add the library to composer.json:

"require": {
    "propaganistas/email-obfuscator": "~1.0",
}

And finally include the supplied Javascript file (assets/EmailObfuscator.js) somewhere in your template. Publish the file yourself or use the following CDN link (no uptime guaranteed):

https://cdn.rawgit.com/Propaganistas/Email-Obfuscator/master/assets/EmailObfuscator.js

Additional Platform specific steps

• Standalone
• Laravel 5
• Twig

Standalone

Include the src/Obfuscator.php file somewhere in your project:

require_once 'PATH_TO_LIBRARY/src/Obfuscator.php';

Parse and obfuscate a string by using the obfuscateEmail($string) function.

Laravel 5

You have 3 options depending on your use case:

• (recommended) If you want to obfuscate all email addresses that Laravel ever outputs, add the Middleware class to the $middleware array in App\Http\Middleware\Kernel.php:

  protected $middleware = [
      \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
  	    ...
  	\Propaganistas\EmailObfuscator\Laravel\Middleware::class,
  ];

• If you only want to have specific controller methods return obfuscated email addresses, add the Middleware class to the $routeMiddleware array in App\Http\Middleware\Kernel.php:

  protected $routeMiddleware = [
  	'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
  	...
  	'obfuscate' => \Propaganistas\EmailObfuscator\Laravel\Middleware::class,
  ];

  and apply controller middleware as usual in a controller's construct method or route definition:

  public function __construct()
  {
      $this->middleware('obfuscate');
  }
  ```

• If you want to apply obfuscation only on specific strings, just use the obfuscateEmail($string) function.

Twig

Add the extension to the Twig_Environment:

$twig = new Twig_Environment(...);
$twig->addExtension(new \Propaganistas\EmailObfuscator\Twig\Extension());

The extension exposes an obfuscateEmail Twig filter, which can be applied to any string.

{{ "Lorem Ipsum"|obfuscateEmail }}
{{ variable|obfuscateEmail }}

Your platform not listed here? (aka "Go go community!")

Well, feel free to hop in and create an integration yourself! If you have made an integration bundle/extension/package for a specific framework or CMS, please:

• Fork the project
• Place the necessary files in a correspondingly named folder in src/
• Supply a README entry
• Open up a pull request

If your platform enforces a strict package structure, create a repository and submit a pull request supplying only a README entry pointing to your repository.

Credits

• Scott Yang - For the Javascript used in this method.
• Silvan Mühlemann - For the inspiration of the CSS implementation.