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https://github.com/ezyang/htmlpurifier.git
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e99520ab96
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1253 48356398-32a2-884e-a903-53898d9a118a
53 lines
1.6 KiB
PHP
53 lines
1.6 KiB
PHP
<?php
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require_once 'HTMLPurifier/Injector.php';
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HTMLPurifier_ConfigSchema::define(
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'AutoFormat', 'Linkify', false, 'bool', '
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<p>
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This directive turns on linkification, auto-linking http, ftp and
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https URLs. This directive has been available since 2.0.1.
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</p>
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');
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/**
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* Injector that converts http, https and ftp text URLs to actual links.
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*/
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class HTMLPurifier_Injector_Linkify extends HTMLPurifier_Injector
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{
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function handleText(&$token, $config, &$context) {
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if (!$this->allowsElement('a')) return;
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if (strpos($token->data, '://') === false) {
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// our really quick heuristic failed, abort
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// this may not work so well if we want to match things like
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// "google.com", but then again, most people don't
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return;
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}
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// there is/are URL(s). Let's split the string:
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// Note: this regex is extremely permissive
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$bits = preg_split('#((?:https?|ftp)://[^\s\'"<>()]+)#S', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
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$token = array();
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// $i = index
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// $c = count
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// $l = is link
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for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
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if (!$l) {
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if ($bits[$i] === '') continue;
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$token[] = new HTMLPurifier_Token_Text($bits[$i]);
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} else {
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$token[] = new HTMLPurifier_Token_Start('a', array('href' => $bits[$i]));
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$token[] = new HTMLPurifier_Token_Text($bits[$i]);
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$token[] = new HTMLPurifier_Token_End('a');
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}
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}
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}
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}
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