305 lines
8.2 KiB
PHP
305 lines
8.2 KiB
PHP
<?php
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namespace Activitypub\Model;
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/**
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* ActivityPub Comment Class
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*
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* @author Django Doucet
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*/
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class Comment {
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private $comment;
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private $id;
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private $comment_author_url;
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private $post_author;
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private $in_reply_to;
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private $content_warning;
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private $permalink;
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private $context;
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private $to_recipients;
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private $tags;
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private $update;
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private $deleted;
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private $replies;
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/**
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* Initialize the class
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*/
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public function __construct( $comment = null ) {
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$this->comment = $comment;
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$this->id = $this->generate_comment_id();
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$this->comment_author_url = \get_author_posts_url( $this->comment->user_id );
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$this->in_reply_to = $this->generate_parent_url();
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$this->content_warning = $this->generate_content_warning();
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$this->permalink = $this->generate_permalink();
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$this->context = $this->generate_context();
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$this->to_recipients = $this->generate_mention_recipients();
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$this->tags = $this->generate_tags();
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$this->update = $this->generate_update();
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$this->deleted = $this->generate_trash();
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$this->replies = $this->generate_replies();
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}
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public function __call( $method, $params ) {
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$var = \strtolower( \substr( $method, 4 ) );
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if ( \strncasecmp( $method, 'get', 3 ) === 0 ) {
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return $this->$var;
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}
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if ( \strncasecmp( $method, 'set', 3 ) === 0 ) {
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$this->$var = $params[0];
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}
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}
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public function to_array() {
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$comment = $this->comment;
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$array = array(
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'id' => $this->id,
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'type' => 'Note',
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'published' => \gmdate( 'Y-m-d\TH:i:s\Z', \strtotime( $comment->comment_date_gmt ) ),
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'attributedTo' => $this->comment_author_url,
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'summary' => $this->content_warning,
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'inReplyTo' => $this->in_reply_to,
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'content' => $this->get_content(),
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'contentMap' => array(
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\strstr( \get_locale(), '_', true ) => $this->get_content(),
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),
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'context' => $this->context,
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// 'source' => \get_comment_link( $comment ), //non-conforming, see https://www.w3.org/TR/activitypub/#source-property
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'url' => \get_comment_link( $comment ), //link for mastodon
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'to' => array( 'https://www.w3.org/ns/activitystreams#Public' ),
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'cc' => array( 'https://www.w3.org/ns/activitystreams#Public' ),
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'tag' => $this->tags,
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);
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if ( $this->replies ) {
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$array['replies'] = $this->replies;
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}
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if ( $this->update ) {
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$array['updated'] = $this->update;
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}
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if ( $this->deleted ) {
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$array['deleted'] = $this->deleted;
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}
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return \apply_filters( 'activitypub_comment', $array );
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}
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public function to_json() {
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return \wp_json_encode( $this->to_array(), JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_QUOT );
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}
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public function generate_comment_author_link() {
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return \get_author_posts_url( $this->comment->comment_author );
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}
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public function generate_comment_id() {
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return \Activitypub\set_ap_comment_id( $this->comment->comment_ID );
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}
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public function generate_permalink() {
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return \get_comment_link( $this->comment );
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}
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/**
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* What is status being replied to
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* Comment ID or Post ID
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*/
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public function generate_parent_url() {
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$comment = $this->comment;
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$parent_comment = \get_comment( $comment->comment_parent );
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if ( $comment->comment_parent ) {
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//is parent remote?
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$in_reply_to = \get_comment_meta( $comment->comment_parent, 'source_url', true );
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if ( ! $in_reply_to ) {
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$in_reply_to = add_query_arg(
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array(
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'p' => $comment->comment_post_ID,
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'replytocom' => $comment->comment_parent,
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),
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trailingslashit( site_url() )
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);
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}
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} else { //parent is_post
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// Backwards compatibility
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$pretty_permalink = \get_post_meta( $comment->comment_post_ID, 'activitypub_canonical_url', true );
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if ( $pretty_permalink ) {
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$in_reply_to = $pretty_permalink;
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} else {
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$in_reply_to = add_query_arg(
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array(
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'p' => $comment->comment_post_ID,
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),
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trailingslashit( site_url() )
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);
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}
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}
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return $in_reply_to;
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}
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public function generate_context() {
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$comment = $this->comment;
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// support pretty_permalinks
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$pretty_permalink = \get_post_meta( $comment->comment_post_ID, 'activitypub_canonical_url', true );
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if ( $pretty_permalink ) {
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$context = $pretty_permalink;
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} else {
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$context = add_query_arg(
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array(
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'p' => $comment->comment_post_ID,
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),
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trailingslashit( site_url() )
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);
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}
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return $context;
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}
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/**
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* Generate courtesy Content Warning
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* If parent status used CW let's just copy it
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* TODO: Move to preprocess_comment / row_actions
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* Add option for wrapping CW in Details/Summary markup
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* Figure out some CW syntax: [shortcode-style], {brackets-style}?
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* So it can be inserted into reply textbox, and removed or modified at will
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*/
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public function generate_content_warning() {
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$comment = $this->comment;
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$content_warning = null;
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// Temporarily generate Summary from parent
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$parent_comment = \get_comment( $comment->comment_parent );
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if ( $parent_comment ) {
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//get (received) comment
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$ap_object = \unserialize( \get_comment_meta( $comment->comment_parent, 'ap_object', true ) );
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if ( isset( $ap_object['object']['summary'] ) ) {
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$content_warning = $ap_object['object']['summary'];
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}
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}
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// TODO Replace auto generate with Summary shortcode
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/*summary = \get_comment_meta( $this->comment->comment_ID, 'summary', true ) ;
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if ( !empty( $summary ) ) {
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$content_warning = \Activitypub\add_summary( $summary );
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} */
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return $content_warning;
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}
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/**
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* Who is being replied to
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*/
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public function get_content() {
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$comment = $this->comment;
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if ( isset( $this->content ) ) {
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return $this->content;
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}
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$comment_content = $comment->comment_content;
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$filtered_content = \apply_filters( 'the_content', $comment_content, $comment );
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$decoded_content = \html_entity_decode( $filtered_content, \ENT_QUOTES, 'UTF-8' );
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$content = \trim( \preg_replace( '/[\n\r\t]/', '', $decoded_content ) );
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$this->content = $content;
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return $content;
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}
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/**
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* Mention user being replied to
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*/
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public function generate_tags() {
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if ( $this->tags ) {
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return $this->tags;
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}
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$tags = array();
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$mentions = apply_filters( 'activitypub_extract_mentions', array(), $this->comment->comment_content, $this );
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if ( $mentions ) {
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foreach ( $mentions as $mention => $url ) {
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$tag = array(
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'type' => 'Mention',
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'href' => $url,
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'name' => $mention,
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);
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$tags[] = $tag;
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}
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}
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$this->tags = $tags;
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return $tags;
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}
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/**
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* Generate updated datetime
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*/
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public function generate_update() {
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$comment = $this->comment;
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$updated = null;
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if ( \get_comment_meta( $comment->comment_ID, 'ap_last_modified', true ) ) {
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$updated = \wp_date( 'Y-m-d\TH:i:s\Z', \get_comment_meta( $comment->comment_ID, 'ap_last_modified', true ) );
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}
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return $updated;
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}
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/**
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* Generate deleted datetime
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*/
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public function generate_trash() {
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$comment = $this->comment;
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$deleted = null;
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if ( 'trash' === $comment->status ) {
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$deleted = \gmdate( 'Y-m-d\TH:i:s\Z', \strtotime( $comment->comment_date_gmt ) );
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}
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return $deleted;
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}
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/**
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* Generate replies collections
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*/
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public function generate_replies() {
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$comment = $this->comment;
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$replies = array();
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$args = array(
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'post_id' => $comment->comment_post_ID,
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'parent' => $comment->comment_ID,
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'status' => 'approve',
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'hierarchical' => false,
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);
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$comments_list = \get_comments( $args );
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if ( $comments_list ) {
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$items = array();
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foreach ( $comments_list as $comment ) {
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// remote replies
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$source_url = \get_comment_meta( $comment->comment_ID, 'source_url', true );
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if ( ! empty( $source_url ) ) {
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$items[] = $source_url;
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} else {
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// local replies
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$comment_url = \add_query_arg( //
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array(
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'p' => $comment->comment_post_ID,
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'replytocom' => $comment->comment_ID,
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),
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trailingslashit( site_url() )
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);
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$items[] = $comment_url;
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}
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}
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$replies = (object) array(
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'type' => 'Collection',
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'id' => \add_query_arg( array( 'replies' => '' ), $this->id ),
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'first' => (object) array(
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'type' => 'CollectionPage',
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'partOf' => \add_query_arg( array( 'replies' => '' ), $this->id ),
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'items' => $items,
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),
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);
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}
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return $replies;
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}
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}
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