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<?php |
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declare(strict_types=1); |
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/* |
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* (c) Christian Gripp <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Core23\Twig\Extension; |
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use Twig\Extension\AbstractExtension; |
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use Twig\TwigFilter; |
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final class UrlAutoConverterTwigExtension extends AbstractExtension |
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{ |
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public function getFilters() |
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{ |
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return [ |
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new TwigFilter('converturls', [$this, 'convertLinks'], [ |
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'is_safe' => ['html'], |
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]), |
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]; |
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} |
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public function convertLinks(string $text, array $options = []): string |
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{ |
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$text = $this->replaceProtocol($text); |
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$ret = ' '.$text; |
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$attr = ''; |
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foreach ($options as $key => $value) { |
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$attr .= ' '.$key.'="'.$value.'"'; |
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} |
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// Replace Links with http:// |
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$ret = (string) preg_replace("#(^|[\n ])([\\w]+?://[\\w\\#$%&~/.\\-;:=,?@\\[\\]+]*)#is", '\\1<a href="\\2"'.$attr.'>\\2</a>', $ret); |
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// Replace Links without http:// |
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$ret = (string) preg_replace("#(^|[\n ])((www|ftp)\\.[\\w\\#$%&~/.\\-;:=,?@\\[\\]+]*)#is", '\\1<a href="http://\\2"'.$attr.'>\\2</a>', $ret); |
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// Replace Email Addresses |
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$ret = (string) preg_replace("#(^|[\n ])([a-z0-9&\\-_.]+?)@([\\w\\-]+\\.([\\w\\-\\.]+\\.)*[\\w]+)#i", '\\1<a href="mailto:\\2@\\3"'.$attr.'>\\2@\\3</a>', $ret); |
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return substr($ret, 1); |
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} |
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/** |
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* @see https://bitbucket.org/kwi/urllinker/ |
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*/ |
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private function replaceProtocol(string $text): string |
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{ |
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return preg_replace('#(script|about|applet|activex|chrome):#is', '\\1:', $text) ?: ''; |
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} |
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} |
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core23 /
twig-extensions
