121 lines
2.8 KiB
PHP
121 lines
2.8 KiB
PHP
<?php
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/*
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* This file is part of the Kimai time-tracking app.
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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 App\Utils;
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/**
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* This Class extends the default Parsedown Class for custom methods.
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*/
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class ParsedownExtension extends \Parsedown
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{
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private $ids = [];
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/**
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* Overwritten to add support for file:///
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*/
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protected $safeLinksWhitelist = [
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'file:///',
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'http://',
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'https://',
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'ftp://',
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'ftps://',
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'mailto:',
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'data:image/png;base64,',
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'data:image/gif;base64,',
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'data:image/jpeg;base64,',
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'irc:',
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'ircs:',
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'git:',
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'ssh:',
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'news:',
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'steam:',
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];
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/**
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* Overwritten:
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* - added support for file:///
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* - open links in new windows
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*/
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protected function inlineUrl($Excerpt)
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{
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if ($this->urlsLinked !== true or !isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/') {
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return;
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}
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if (preg_match('/\b(https?:[\/]{2}|file:[\/]{3})[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE)) {
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$url = $matches[0][0];
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$Inline = [
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'extent' => \strlen($matches[0][0]),
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'position' => $matches[0][1],
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'element' => [
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'name' => 'a',
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'text' => $url,
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'attributes' => [
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'href' => $url,
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'target' => '_blank'
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],
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],
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];
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return $Inline;
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}
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}
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protected function blockHeader($line)
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{
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$block = parent::blockHeader($line);
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$text = $block['element']['text'];
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$id = $this->getIDfromText($text);
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// add id-attribute
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$block['element']['attributes'] = [
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'id' => $id
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];
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return $block;
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}
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/**
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* github-action for creating ids:
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*
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* - It downcases the header string
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* - remove anything that is not a letter, number, space or hyphen
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* - changes any space to a hyphen.
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* - If that is not unique, add "-1", "-2", "-3",... to make it unique
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*
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* @param string $text
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* @return string
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*/
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private function getIDfromText($text)
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{
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$text = strtolower($text);
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$text = preg_replace('/[^A-Za-z0-9\-\ ]/', '', $text);
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$text = strtr($text, [' ' => '-']);
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if (isset($this->ids[$text])) {
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$i = 0;
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$numberedText = $text . '-1';
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while (isset($this->ids[$numberedText])) {
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$i++;
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$numberedText = $text . '-' . $i;
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}
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$text = $numberedText;
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}
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$this->ids[$text] = '';
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return $text;
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}
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}
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