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<?php |
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declare(strict_types=1); |
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/** |
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* Saito - The Threaded Web Forum |
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* |
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* @copyright Copyright (c) the Saito Project Developers |
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* @link https://github.com/Schlaefer/Saito |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace Plugin\BbcodeParser\src\Lib\jBBCode\Visitors; |
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use Plugin\BbcodeParser\src\Lib\Helper\UrlParserTrait; |
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/** |
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* Handles all implicit linking in a text (autolink URLs, tags, ...) |
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*/ |
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class JbbCodeAutolinkVisitor extends JbbCodeTextVisitor |
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{ |
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use UrlParserTrait; |
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protected $_disallowedTags = ['code']; |
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/** |
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* {@inheritDoc} |
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*/ |
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protected function _processTextNode($string, $node) |
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{ |
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// don't auto-link in url tags; problem is that 'urlWithAttributes' definition |
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// reuses 'url' tag with ParseContent = true |
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if ($node->getParent()->getTagName() === 'url') { |
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return $string; |
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} |
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$string = $this->hashLink($string); |
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$string = $this->atUserLink($string); |
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return $this->autolink($string); |
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} |
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/** |
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* Links @<username> to the user's profile. |
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* |
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* @param string $string The Text to be parsed. |
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* @return string The text with usernames linked. |
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*/ |
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protected function atUserLink(string $string): string |
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{ |
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$tags = []; |
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/* |
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* - '\pP' all unicode punctuation marks |
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* - '<' if nl2br has taken place whatchout for <br /> linebreaks |
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*/ |
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$hasTags = preg_match_all('/(\s|^)@([^\s\pP<]+)/m', $string, $tags); |
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if (!$hasTags) { |
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return $string; |
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} |
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// would be cleaner to pass userlist by value, but for performance reasons |
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// we only query the db if we actually have any @ tags |
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$users = $this->_sOptions->get('UserList')->get(); |
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sort($users); |
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$names = []; |
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if (empty($tags[2]) === false) { |
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$tags = $tags[2]; |
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foreach ($tags as $tag) { |
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if (in_array($tag, $users)) { |
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$names[$tag] = 1; |
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} else { |
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$continue = 0; |
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foreach ($users as $user) { |
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if (mb_strpos($user, $tag) === 0) { |
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$names[$user] = 1; |
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$continue = true; |
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} |
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if ($continue === false) { |
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break; |
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} elseif ($continue !== 0) { |
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$continue = false; |
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} |
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} |
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} |
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} |
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} |
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krsort($names); |
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$baseUrl = $this->_sOptions->get('webroot') . $this->_sOptions->get('atBaseUrl'); |
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foreach ($names as $name => $v) { |
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$title = urlencode($name); |
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$link = $this->_url( |
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$baseUrl . $title, |
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"@$name", |
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false |
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); |
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$string = str_replace("@$name", $link, $string); |
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} |
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return $string; |
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} |
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/** |
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* Autolinks URLs not surrounded by explicit URL-tags for user-convenience. |
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* |
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* @param string $string The text to be parsed for URLs. |
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* @return string The text with URLs linked. |
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*/ |
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protected function autolink(string $string): string |
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{ |
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$replace = function (array $matches): string { |
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// don't link locally |
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if (strpos($matches['element'], 'file://') !== false) { |
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return $matches['element']; |
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} |
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// exclude punctuation at end of sentence from URLs |
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$ignoredEndChars = implode('|', [',', '\?', ',', '\.', '\)', '!']); |
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preg_match( |
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'/(?P<element>.*?)(?P<suffix>' . $ignoredEndChars . ')?$/', |
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$matches['element'], |
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$m |
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); |
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// keep ['element'] and ['suffix'] and include ['prefix']; (array) for phpstan |
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$matches = (array)($m + $matches); |
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if (strpos($matches['element'], '://') === false) { |
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$matches['element'] = 'http://' . $matches['element']; |
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} |
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$matches += [ |
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'prefix' => '', |
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'suffix' => '' |
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]; |
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$url = $this->_url( |
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$matches['element'], |
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$matches['element'], |
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false, |
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true |
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); |
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return $matches['prefix'] . $url . $matches['suffix']; |
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}; |
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//# autolink http://urls |
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$string = preg_replace_callback( |
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"#(?<=^|[\n (])(?P<element>[\w]+?://.*?[^ \"\n\r\t<]*)#is", |
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$replace, |
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$string |
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); |
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//# autolink without http://, i.e. www.foo.bar/baz |
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$string = preg_replace_callback( |
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"#(?P<prefix>^|[\n (])(?P<element>(www|ftp)\.[\w\-]+\.[\w\-.\~]+(?:/[^ \"\t\n\r<]*)?)#is", |
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$replace, |
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$string |
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); |
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//# autolink email |
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$string = preg_replace_callback( |
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"#(?<=^|[\n ])(?P<content>([a-z0-9&\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+))#i", |
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function ($matches) { |
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return $this->_email($matches['content']); |
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}, |
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$string |
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); |
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return $string; |
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} |
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/** |
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* Links #<posting-ID> to that posting. |
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* |
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* @param string $string Text to be parsed for #<id>. |
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* @return string Text containing hash-links. |
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*/ |
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protected function hashLink(string $string): string |
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{ |
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$baseUrl = $this->_sOptions->get('webroot') . $this->_sOptions->get('hashBaseUrl'); |
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$string = preg_replace_callback( |
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'/(?<=\s|^|]|\()(?<tag>#)(?<element>\d+)(?!\w)/', |
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function (array $m) use ($baseUrl): string { |
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$hash = $m['element']; |
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return $this->_url($baseUrl . $hash, '#' . $hash); |
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}, |
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$string |
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); |
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return $string; |
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} |
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} |
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Schlaefer /
Saito
