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<?php |
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namespace epiphyt\Embed_Privacy\integration; |
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|
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use DOMDocument; |
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use DOMElement; |
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use DOMXPath; |
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|
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/** |
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* Twitter integration for Embed Privacy. |
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* |
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* @author Epiphyt |
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* @license GPL2 |
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* @package epiphyt\Embed_Privacy |
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* @since 1.10.0 |
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*/ |
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final class Twitter { |
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/** |
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* Transform a tweet into a local one. |
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* |
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* @param string $html Embed code |
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* @return string Local embed |
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*/ |
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public static function get_local_tweet( $html ) { |
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\libxml_use_internal_errors( true ); |
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$dom = new DOMDocument(); |
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$dom->loadHTML( |
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'<html><meta charset="utf-8">' . $html . '</html>', |
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\LIBXML_HTML_NOIMPLIED | \LIBXML_HTML_NODEFDTD |
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); |
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|
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// phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase |
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// remove script tag |
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foreach ( $dom->getElementsByTagName( 'script' ) as $script ) { |
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$script->parentNode->removeChild( $script ); |
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} |
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|
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$xpath = new DOMXPath( $dom ); |
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|
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// get text node, which represents the author name |
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// and give it a span with class |
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foreach ( $xpath->query( '//blockquote/text()' ) as $node ) { |
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$author_node = $dom->createElement( 'span', $node->nodeValue ); |
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$author_node->setAttribute( 'class', 'embed-privacy-author-meta' ); |
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$node->parentNode->replaceChild( $author_node, $node ); |
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} |
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|
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// wrap author name by a meta div |
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/** @var \DOMElement $node */ |
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foreach ( $dom->getElementsByTagName( 'span' ) as $node ) { |
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if ( $node->getAttribute( 'class' ) !== 'embed-privacy-author-meta' ) { |
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continue; |
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} |
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|
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// create meta cite |
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$parent_node = $dom->createElement( 'cite' ); |
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$parent_node->setAttribute( 'class', 'embed-privacy-tweet-meta' ); |
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// append created cite to blockquote |
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$node->parentNode->appendChild( $parent_node ); |
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// move author meta inside meta cite |
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$parent_node->appendChild( $node ); |
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} |
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|
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/** @var \DOMElement $link */ |
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foreach ( $dom->getElementsByTagName( 'a' ) as $link ) { |
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if ( ! \preg_match( '/https?:\/\/twitter.com\/([^\/]+)\/status\/(\d+)/', $link->getAttribute( 'href' ) ) ) { |
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continue; |
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} |
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|
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// modify date in link to tweet |
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$l10n_date = \wp_date( \get_option( 'date_format' ), \strtotime( $link->nodeValue ) ); |
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|
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if ( \is_string( $l10n_date ) ) { |
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$link->nodeValue = $l10n_date; |
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} |
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|
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// move link inside meta div |
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if ( isset( $parent_node ) && $parent_node instanceof DOMElement ) { |
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$parent_node->appendChild( $link ); |
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} |
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} |
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|
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$content = $dom->saveHTML( $dom->documentElement ); |
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// phpcs:enable |
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|
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return \str_replace( [ '<html><meta charset="utf-8">', '</html>' ], [ '<div class="embed-privacy-local-tweet">', '</div>' ], $content ); |
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} |
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} |
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|
