90 lines
2.1 KiB
PHP
90 lines
2.1 KiB
PHP
<?php
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/**
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* ActivityPub Class
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*
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* @author Matthias Pfefferle
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*/
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class Activitypub {
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/**
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* Return a AS2 JSON version of an author, post or page
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*
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* @param string $template the path to the template object
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*
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* @return string the new path to the JSON template
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*/
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public static function render_json_template( $template ) {
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if ( ! is_author() && ! is_singular() ) {
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return $template;
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}
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if ( is_author() ) {
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$json_template = dirname( __FILE__ ) . '/../templates/json-author.php';
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} elseif ( is_singular() ) {
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$json_template = dirname( __FILE__ ) . '/../templates/json-post.php';
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}
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global $wp_query;
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if ( isset( $wp_query->query_vars['as2'] ) ) {
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return $json_template;
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}
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if ( ! isset( $_SERVER['HTTP_ACCEPT'] ) ) {
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return $template;
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}
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// interpret accept header
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$pos = stripos( $_SERVER['HTTP_ACCEPT'], ';' );
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if ( $pos ) {
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$accept_header = substr( $_SERVER['HTTP_ACCEPT'], 0, $pos );
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} else {
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$accept_header = $_SERVER['HTTP_ACCEPT'];
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}
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// accept header as an array
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$accept = explode( ',', trim( $accept_header ) );
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if (
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! in_array( 'application/activity+json', $accept, true ) &&
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! in_array( 'application/ld+json', $accept, true ) &&
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! in_array( 'application/json', $accept, true )
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) {
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return $template;
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}
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return $json_template;
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}
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/**
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* Add WebFinger discovery links
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*
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* @param array $array the jrd array
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* @param string $resource the WebFinger resource
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* @param WP_User $user the WordPress user
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*/
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public static function add_webfinger_discovery( $array, $resource, $user ) {
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$array['links'][] = array(
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'rel' => 'self',
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'type' => 'application/activity+json',
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'href' => get_author_posts_url( $user->ID ),
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);
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return $array;
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}
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/**
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* Add the 'photos' query variable so WordPress
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* won't mangle it.
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*/
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public static function add_query_vars( $vars ) {
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$vars[] = 'as2';
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return $vars;
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}
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/**
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* Add our rewrite endpoint to permalinks and pages.
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*/
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public static function add_rewrite_endpoint() {
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add_rewrite_endpoint( 'as2', EP_AUTHORS | EP_PERMALINK | EP_PAGES );
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}
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}
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