Admin Control Panel v2.0

✎ Editing: Linkify.php ← Back

<?php

/**

* Injector that converts http, https and ftp text URLs to actual links.

class HTMLPurifier_Injector_Linkify extends HTMLPurifier_Injector

{

/**

* @type string

public $name = 'Linkify';

/**

* @type array

public $needed = array('a' => array('href'));

/**

* @param HTMLPurifier_Token $token

public function handleText(&$token)

{

if (!$this->allowsElement('a')) {

return;

}

if (strpos($token->data, '://') === false) {

// our really quick heuristic failed, abort

// this may not work so well if we want to match things like

// "google.com", but then again, most people don't

return;

}

// there is/are URL(s). Let's split the string:

// Note: this regex is extremely permissive

$bits = preg_split('#((?:https?|ftp)://[^\s\'",<>()]+)#Su', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);

$token = array();

// $i = index

// $c = count

// $l = is link

for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {

if (!$l) {

if ($bits[$i] === '') {

continue;

}

$token[] = new HTMLPurifier_Token_Text($bits[$i]);

} else {

$token[] = new HTMLPurifier_Token_Start('a', array('href' => $bits[$i]));

$token[] = new HTMLPurifier_Token_Text($bits[$i]);

$token[] = new HTMLPurifier_Token_End('a');

}

// vim: et sw=4 sts=4

Cancel