updated plugin ActivityPub version 8.3.0
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<?php
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/**
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* Classic Editor integration file.
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*
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* @package Activitypub
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*/
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namespace Activitypub\Integration;
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/**
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* Classic Editor integration class.
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*
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* Handles compatibility with the Classic Editor plugin and sites without block editor support.
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*/
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class Classic_Editor {
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/**
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* Initialize the class, registering WordPress hooks.
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*/
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public static function init() {
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\add_filter( 'activitypub_attachments_media_markup', array( self::class, 'filter_attachments_media_markup' ), 10, 2 );
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\add_filter( 'activitypub_attachment_ids', array( self::class, 'filter_attached_media_ids' ), 10, 2 );
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\add_action( 'add_meta_boxes', array( self::class, 'add_meta_box' ) );
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\add_action( 'save_post', array( self::class, 'save_meta_data' ) );
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if ( \function_exists( 'classicpress_version' ) ) {
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\add_filter( 'activitypub_site_supports_blocks', '__return_false' );
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}
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}
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/**
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* Filter attachment media markup to use shortcodes instead of blocks.
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*
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* @param string $markup The custom markup. Empty string by default.
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* @param array $attachment_ids Array of attachment IDs.
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*
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* @return string The generated shortcode markup.
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*/
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public static function filter_attachments_media_markup( $markup, $attachment_ids ) {
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if ( empty( $attachment_ids ) ) {
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return $markup;
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}
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$type = strtok( \get_post_mime_type( $attachment_ids[0] ), '/' );
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// Single video or audio file: use media shortcode.
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if ( 1 === \count( $attachment_ids ) && ( 'video' === $type || 'audio' === $type ) ) {
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return sprintf(
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'[%1$s src="%2$s"]',
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\esc_attr( $type ),
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\esc_url( \wp_get_attachment_url( $attachment_ids[0] ) )
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);
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}
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// Multiple attachments or images: use gallery shortcode.
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return '[gallery ids="' . implode( ',', $attachment_ids ) . '" link="none"]';
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}
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/**
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* Filter to add attached media IDs from the post's media library.
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*
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* Returns additional image attachments from the post's media library,
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* respecting the maximum image attachment limit. Only returns new
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* attachments that can be added without exceeding the limit.
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*
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* @param array $attachments The current list of attachments.
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* @param \WP_Post $item The post item.
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*
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* @return array Array of new media IDs to add (as associative arrays with 'id' key).
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* Returns empty array if already at or over the limit.
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*/
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public static function filter_attached_media_ids( $attachments, $item ) {
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$max_media = \get_option( 'activitypub_max_image_attachments', \ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS );
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$actual_count = \max( 0, $max_media - \count( $attachments ) );
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if ( $actual_count <= 0 ) {
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return $attachments;
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}
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$query = new \WP_Query(
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array(
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'post_parent' => $item->ID,
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'post_status' => 'inherit',
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'post_type' => 'attachment',
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'post_mime_type' => 'image',
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'order' => 'ASC',
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'orderby' => 'menu_order ID',
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'fields' => 'ids',
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'posts_per_page' => $actual_count,
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)
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);
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// Transform IDs into associative arrays.
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$media_ids = \array_map(
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static function ( $id ) {
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return array( 'id' => $id );
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},
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$query->get_posts()
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);
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return \array_merge( $attachments, $media_ids );
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}
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/**
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* Add ActivityPub meta box to the post editor.
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*
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* @param string $post_type The post type.
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*/
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public static function add_meta_box( $post_type ) {
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// Only add for post types that support ActivityPub.
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if ( ! \post_type_supports( $post_type, 'activitypub' ) ) {
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return;
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}
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\add_meta_box(
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'activitypub-settings',
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\__( 'Fediverse ⁂', 'activitypub' ),
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array( self::class, 'render_meta_box' ),
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$post_type,
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'side',
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'default'
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);
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}
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/**
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* Render the ActivityPub meta box.
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*
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* @param \WP_Post $post The post object.
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*/
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public static function render_meta_box( $post ) {
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// Add nonce for security.
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\wp_nonce_field( 'activitypub_meta_box', 'activitypub_meta_box_nonce' );
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// Get current values.
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$content_warning = \get_post_meta( $post->ID, 'activitypub_content_warning', true );
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$max_image_attachments = \get_post_meta( $post->ID, 'activitypub_max_image_attachments', true );
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$content_visibility = self::get_default_visibility( $post );
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$default_quote_policy = \get_option( 'activitypub_default_quote_policy', ACTIVITYPUB_INTERACTION_POLICY_ANYONE );
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$quote_interaction = \get_post_meta( $post->ID, 'activitypub_interaction_policy_quote', true ) ?: $default_quote_policy;
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?>
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<p>
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<label for="activitypub_content_warning">
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<strong><?php \esc_html_e( 'Content Warning', 'activitypub' ); ?></strong>
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</label><br />
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<input type="text" id="activitypub_content_warning" name="activitypub_content_warning" value="<?php echo \esc_attr( $content_warning ); ?>" class="widefat" placeholder="<?php \esc_attr_e( 'Optional content warning', 'activitypub' ); ?>" />
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<span class="howto"><?php \esc_html_e( 'Content warnings do not change the content on your site, only in the fediverse.', 'activitypub' ); ?></span>
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</p>
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<p>
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<label for="activitypub_max_image_attachments">
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<strong><?php \esc_html_e( 'Maximum Image Attachments', 'activitypub' ); ?></strong>
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</label><br />
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<input type="number" id="activitypub_max_image_attachments" name="activitypub_max_image_attachments" value="<?php echo \esc_attr( $max_image_attachments ); ?>" min="0" max="10" class="small-text" />
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<span class="howto"><?php \esc_html_e( 'Maximum number of image attachments to include when sharing to the fediverse.', 'activitypub' ); ?></span>
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</p>
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<p>
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<strong><?php \esc_html_e( 'Visibility', 'activitypub' ); ?></strong><br />
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<label>
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<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC ); ?> />
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<?php \esc_html_e( 'Public', 'activitypub' ); ?>
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</label><br />
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<label>
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<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_QUIET_PUBLIC ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_QUIET_PUBLIC ); ?> />
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<?php \esc_html_e( 'Quiet public', 'activitypub' ); ?>
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</label><br />
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<label>
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<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL ); ?> />
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<?php \esc_html_e( 'Do not federate', 'activitypub' ); ?>
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</label><br />
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<span class="howto"><?php \esc_html_e( 'This adjusts the visibility of a post in the fediverse, but note that it won\'t affect how the post appears on the blog.', 'activitypub' ); ?></span>
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</p>
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<p>
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<label for="activitypub_interaction_policy_quote">
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<strong><?php \esc_html_e( 'Who can quote this post?', 'activitypub' ); ?></strong>
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</label><br />
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<select id="activitypub_interaction_policy_quote" name="activitypub_interaction_policy_quote" class="widefat">
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<option value="<?php echo \esc_attr( ACTIVITYPUB_INTERACTION_POLICY_ANYONE ); ?>" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_ANYONE ); ?>><?php \esc_html_e( 'Anyone', 'activitypub' ); ?></option>
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<option value="<?php echo \esc_attr( ACTIVITYPUB_INTERACTION_POLICY_FOLLOWERS ); ?>" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_FOLLOWERS ); ?>><?php \esc_html_e( 'Followers only', 'activitypub' ); ?></option>
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<option value="<?php echo \esc_attr( ACTIVITYPUB_INTERACTION_POLICY_ME ); ?>" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_ME ); ?>><?php \esc_html_e( 'Just me', 'activitypub' ); ?></option>
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</select>
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<span class="howto">
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<?php \esc_html_e( 'Quoting allows others to cite your post while adding their own commentary.', 'activitypub' ); ?>
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<?php
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printf(
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/* translators: %s: The current site default quote policy. Note the leading space. */
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\esc_html__( ' Site default: %s', 'activitypub' ),
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\esc_html( self::get_quote_policy_label( $default_quote_policy ) )
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);
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?>
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</span>
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</p>
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<?php
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}
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/**
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* Get the label for a quote policy value.
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*
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* @param string $policy The policy value.
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*
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* @return string The translated label.
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*/
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private static function get_quote_policy_label( $policy ) {
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$labels = array(
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ACTIVITYPUB_INTERACTION_POLICY_ANYONE => \__( 'Anyone', 'activitypub' ),
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ACTIVITYPUB_INTERACTION_POLICY_FOLLOWERS => \__( 'Followers only', 'activitypub' ),
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ACTIVITYPUB_INTERACTION_POLICY_ME => \__( 'Just me', 'activitypub' ),
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);
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return $labels[ $policy ] ?? $labels[ ACTIVITYPUB_INTERACTION_POLICY_ANYONE ];
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}
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/**
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* Get default visibility based on post age and federation status.
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*
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* @param \WP_Post $post The post object.
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*
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* @return string The default visibility value.
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*/
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private static function get_default_visibility( $post ) {
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// If already set, use that value.
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$saved_visibility = \get_post_meta( $post->ID, 'activitypub_content_visibility', true );
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if ( $saved_visibility ) {
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return $saved_visibility;
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}
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// If post is federated, use public.
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$status = \get_post_meta( $post->ID, 'activitypub_status', true );
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if ( ACTIVITYPUB_OBJECT_STATE_FEDERATED === $status ) {
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return ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC;
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}
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// If post is older than 1 month, default to local.
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$post_timestamp = \strtotime( $post->post_date );
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$one_month_ago = \strtotime( '-30 days' );
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if ( $post_timestamp < $one_month_ago ) {
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return ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL;
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}
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// Default to public for new posts.
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return ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC;
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}
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/**
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* Save ActivityPub meta data.
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*
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* @param int $post_id The post ID.
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*/
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public static function save_meta_data( $post_id ) {
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// Check if this is an autosave.
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if ( \defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
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return;
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}
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// Only process for post types that support ActivityPub.
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if ( ! \post_type_supports( \get_post_type( $post_id ), 'activitypub' ) ) {
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return;
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}
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// Check user permissions.
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if ( ! \current_user_can( 'edit_post', $post_id ) ) {
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return;
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}
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// Verify nonce is present and valid.
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if ( ! isset( $_POST['activitypub_meta_box_nonce'] ) ) {
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return;
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}
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if ( ! \wp_verify_nonce( \sanitize_text_field( \wp_unslash( $_POST['activitypub_meta_box_nonce'] ) ), 'activitypub_meta_box' ) ) {
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return;
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}
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// Save content warning.
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if ( isset( $_POST['activitypub_content_warning'] ) ) {
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$content_warning = \sanitize_text_field( \wp_unslash( $_POST['activitypub_content_warning'] ) );
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if ( ! empty( $content_warning ) ) {
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\update_post_meta( $post_id, 'activitypub_content_warning', $content_warning );
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} else {
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\delete_post_meta( $post_id, 'activitypub_content_warning' );
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}
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}
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// Save max image attachments.
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if ( isset( $_POST['activitypub_max_image_attachments'] ) ) {
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$max_images = \absint( $_POST['activitypub_max_image_attachments'] );
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\update_post_meta( $post_id, 'activitypub_max_image_attachments', $max_images );
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}
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// Save content visibility.
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if ( isset( $_POST['activitypub_content_visibility'] ) ) {
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$visibility = \sanitize_text_field( \wp_unslash( $_POST['activitypub_content_visibility'] ) );
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\update_post_meta( $post_id, 'activitypub_content_visibility', $visibility );
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}
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// Save quote interaction policy.
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if ( isset( $_POST['activitypub_interaction_policy_quote'] ) ) {
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$quote_policy = \sanitize_text_field( \wp_unslash( $_POST['activitypub_interaction_policy_quote'] ) );
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\update_post_meta( $post_id, 'activitypub_interaction_policy_quote', $quote_policy );
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}
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}
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}
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