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<?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 $template; |
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} |
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|
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if ( is_author() ) { |
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$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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|
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global $wp_query; |
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|
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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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|
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if ( ! isset( $_SERVER['HTTP_ACCEPT'] ) ) { |
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return $template; |
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} |
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|
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// interpret accept header |
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$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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|
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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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|
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return $json_template; |
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} |
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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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|
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return $vars; |
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} |
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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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/** |
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* Marks the post as "no webmentions sent yet" |
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* |
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* @param int $post_id |
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*/ |
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public static function schedule_post_activity( $post_id ) { |
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wp_schedule_single_event( time() + wp_rand( 0, 120 ), 'activitypub_send_post_activity', array( $post_id ) ); |
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} |
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} |
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|
