updated plugin ActivityPub version 1.0.7
This commit is contained in:
Gitium
@ -1,111 +1,50 @@
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<?php
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namespace Activitypub;
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use WP_Error;
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use Activitypub\Http;
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use Activitypub\Activity\Activity;
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use Activitypub\Collection\Followers;
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/**
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* Returns the ActivityPub default JSON-context
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*
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* @return array the activitypub context
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*/
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function get_context() {
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$context = array(
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'https://www.w3.org/ns/activitystreams',
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'https://w3id.org/security/v1',
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array(
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'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
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'PropertyValue' => 'schema:PropertyValue',
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'schema' => 'http://schema.org#',
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'pt' => 'https://joinpeertube.org/ns#',
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'toot' => 'http://joinmastodon.org/ns#',
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'value' => 'schema:value',
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'Hashtag' => 'as:Hashtag',
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'featured' => array(
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'@id' => 'toot:featured',
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'@type' => '@id',
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),
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'featuredTags' => array(
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'@id' => 'toot:featuredTags',
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'@type' => '@id',
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),
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),
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);
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$context = Activity::CONTEXT;
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return \apply_filters( 'activitypub_json_context', $context );
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}
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function safe_remote_post( $url, $body, $user_id ) {
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$date = \gmdate( 'D, d M Y H:i:s T' );
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$digest = \Activitypub\Signature::generate_digest( $body );
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$signature = \Activitypub\Signature::generate_signature( $user_id, 'post', $url, $date, $digest );
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$wp_version = \get_bloginfo( 'version' );
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$user_agent = \apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . \get_bloginfo( 'url' ) );
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$args = array(
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'timeout' => 100,
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'limit_response_size' => 1048576,
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'redirection' => 3,
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'user-agent' => "$user_agent; ActivityPub",
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'headers' => array(
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'Accept' => 'application/activity+json',
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'Content-Type' => 'application/activity+json',
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'Digest' => "SHA-256=$digest",
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'Signature' => $signature,
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'Date' => $date,
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),
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'body' => $body,
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);
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$response = \wp_safe_remote_post( $url, $args );
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\do_action( 'activitypub_safe_remote_post_response', $response, $url, $body, $user_id );
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return $response;
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return Http::post( $url, $body, $user_id );
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}
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function safe_remote_get( $url, $user_id ) {
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$date = \gmdate( 'D, d M Y H:i:s T' );
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$signature = \Activitypub\Signature::generate_signature( $user_id, 'get', $url, $date );
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$wp_version = \get_bloginfo( 'version' );
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$user_agent = \apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . \get_bloginfo( 'url' ) );
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$args = array(
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'timeout' => apply_filters( 'activitypub_remote_get_timeout', 100 ),
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'limit_response_size' => 1048576,
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'redirection' => 3,
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'user-agent' => "$user_agent; ActivityPub",
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'headers' => array(
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'Accept' => 'application/activity+json',
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'Content-Type' => 'application/activity+json',
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'Signature' => $signature,
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'Date' => $date,
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),
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);
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$response = \wp_safe_remote_get( $url, $args );
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\do_action( 'activitypub_safe_remote_get_response', $response, $url, $user_id );
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return $response;
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function safe_remote_get( $url ) {
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return Http::get( $url );
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}
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/**
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* Returns a users WebFinger "resource"
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*
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* @param int $user_id
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* @param int $user_id The User-ID.
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*
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* @return string The user-resource
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* @return string The User-Resource.
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*/
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function get_webfinger_resource( $user_id ) {
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return \Activitypub\Webfinger::get_user_resource( $user_id );
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return Webfinger::get_user_resource( $user_id );
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}
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/**
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* [get_metadata_by_actor description]
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* Requests the Meta-Data from the Actors profile
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*
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* @param string $actor
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* @param string $actor The Actor URL.
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* @param bool $cached If the result should be cached.
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*
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* @return array
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* @return array The Actor profile as array
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*/
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function get_remote_metadata_by_actor( $actor ) {
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function get_remote_metadata_by_actor( $actor, $cached = true ) {
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$pre = apply_filters( 'pre_get_remote_metadata_by_actor', false, $actor );
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if ( $pre ) {
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return $pre;
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@ -115,7 +54,7 @@ function get_remote_metadata_by_actor( $actor ) {
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}
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if ( ! $actor ) {
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return null;
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return new WP_Error( 'activitypub_no_valid_actor_identifier', \__( 'The "actor" identifier is not valid', 'activitypub' ), array( 'status' => 404, 'actor' => $actor ) );
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}
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if ( is_wp_error( $actor ) ) {
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@ -123,33 +62,27 @@ function get_remote_metadata_by_actor( $actor ) {
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}
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$transient_key = 'activitypub_' . $actor;
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$metadata = \get_transient( $transient_key );
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if ( $metadata ) {
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return $metadata;
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// only check the cache if needed.
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if ( $cached ) {
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$metadata = \get_transient( $transient_key );
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if ( $metadata ) {
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return $metadata;
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}
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}
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if ( ! \wp_http_validate_url( $actor ) ) {
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$metadata = new \WP_Error( 'activitypub_no_valid_actor_url', \__( 'The "actor" is no valid URL', 'activitypub' ), $actor );
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$metadata = new WP_Error( 'activitypub_no_valid_actor_url', \__( 'The "actor" is no valid URL', 'activitypub' ), array( 'status' => 400, 'actor' => $actor ) );
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\set_transient( $transient_key, $metadata, HOUR_IN_SECONDS ); // Cache the error for a shorter period.
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return $metadata;
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}
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$user = \get_users(
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array(
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'number' => 1,
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'capability__in' => array( 'publish_posts' ),
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'fields' => 'ID',
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)
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);
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// we just need any user to generate a request signature
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$user_id = \reset( $user );
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$short_timeout = function() {
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return 3;
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};
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add_filter( 'activitypub_remote_get_timeout', $short_timeout );
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$response = \Activitypub\safe_remote_get( $actor, $user_id );
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$response = Http::get( $actor );
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remove_filter( 'activitypub_remote_get_timeout', $short_timeout );
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if ( \is_wp_error( $response ) ) {
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\set_transient( $transient_key, $response, HOUR_IN_SECONDS ); // Cache the error for a shorter period.
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@ -159,118 +92,37 @@ function get_remote_metadata_by_actor( $actor ) {
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$metadata = \wp_remote_retrieve_body( $response );
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$metadata = \json_decode( $metadata, true );
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\set_transient( $transient_key, $metadata, WEEK_IN_SECONDS );
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if ( ! $metadata ) {
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$metadata = new \WP_Error( 'activitypub_invalid_json', \__( 'No valid JSON data', 'activitypub' ), $actor );
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$metadata = new WP_Error( 'activitypub_invalid_json', \__( 'No valid JSON data', 'activitypub' ), array( 'status' => 400, 'actor' => $actor ) );
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\set_transient( $transient_key, $metadata, HOUR_IN_SECONDS ); // Cache the error for a shorter period.
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return $metadata;
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}
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\set_transient( $transient_key, $metadata, WEEK_IN_SECONDS );
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return $metadata;
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}
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/**
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* [get_inbox_by_actor description]
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* @param [type] $actor [description]
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* @return [type] [description]
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* Returns the followers of a given user.
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*
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* @param int $user_id The User-ID.
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*
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* @return array The followers.
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*/
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function get_inbox_by_actor( $actor ) {
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$metadata = \Activitypub\get_remote_metadata_by_actor( $actor );
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if ( \is_wp_error( $metadata ) ) {
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return $metadata;
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}
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if ( isset( $metadata['endpoints'] ) && isset( $metadata['endpoints']['sharedInbox'] ) ) {
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return $metadata['endpoints']['sharedInbox'];
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}
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if ( \array_key_exists( 'inbox', $metadata ) ) {
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return $metadata['inbox'];
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}
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return new \WP_Error( 'activitypub_no_inbox', \__( 'No "Inbox" found', 'activitypub' ), $metadata );
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function get_followers( $user_id ) {
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return Followers::get_followers( $user_id );
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}
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/**
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* [get_inbox_by_actor description]
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* @param [type] $actor [description]
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* @return [type] [description]
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* Count the number of followers for a given user.
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*
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* @param int $user_id The User-ID.
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*
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* @return int The number of followers.
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*/
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function get_publickey_by_actor( $actor, $key_id ) {
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$metadata = \Activitypub\get_remote_metadata_by_actor( $actor );
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if ( \is_wp_error( $metadata ) ) {
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return $metadata;
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}
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if (
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isset( $metadata['publicKey'] ) &&
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isset( $metadata['publicKey']['id'] ) &&
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isset( $metadata['publicKey']['owner'] ) &&
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isset( $metadata['publicKey']['publicKeyPem'] ) &&
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$key_id === $metadata['publicKey']['id'] &&
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$actor === $metadata['publicKey']['owner']
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) {
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return $metadata['publicKey']['publicKeyPem'];
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}
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return new \WP_Error( 'activitypub_no_public_key', \__( 'No "Public-Key" found', 'activitypub' ), $metadata );
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}
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function get_follower_inboxes( $user_id ) {
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$followers = \Activitypub\Peer\Followers::get_followers( $user_id );
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$inboxes = array();
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foreach ( $followers as $follower ) {
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$inbox = \Activitypub\get_inbox_by_actor( $follower );
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if ( ! $inbox || \is_wp_error( $inbox ) ) {
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continue;
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}
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// init array if empty
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if ( ! isset( $inboxes[ $inbox ] ) ) {
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$inboxes[ $inbox ] = array();
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}
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$inboxes[ $inbox ][] = $follower;
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}
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return $inboxes;
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}
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function get_identifier_settings( $user_id ) {
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?>
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<table class="form-table">
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<tbody>
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<tr>
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<th scope="row">
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<label><?php \esc_html_e( 'Profile identifier', 'activitypub' ); ?></label>
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</th>
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<td>
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<p><code><?php echo \esc_html( \Activitypub\get_webfinger_resource( $user_id ) ); ?></code> or <code><?php echo \esc_url( \get_author_posts_url( $user_id ) ); ?></code></p>
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<?php // translators: the webfinger resource ?>
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<p class="description"><?php \printf( \esc_html__( 'Try to follow "@%s" by searching for it on Mastodon,Friendica & Co.', 'activitypub' ), \esc_html( \Activitypub\get_webfinger_resource( $user_id ) ) ); ?></p>
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</td>
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</tr>
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</tbody>
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</table>
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<?php
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}
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function get_followers( $user_id ) {
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$followers = \Activitypub\Peer\Followers::get_followers( $user_id );
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if ( ! $followers ) {
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return array();
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}
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return $followers;
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}
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function count_followers( $user_id ) {
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$followers = \Activitypub\get_followers( $user_id );
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return \count( $followers );
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return Followers::count_followers( $user_id );
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}
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/**
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@ -320,3 +172,312 @@ function url_to_authorid( $url ) {
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return 0;
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}
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/**
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* Check for Tombstone Objects
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*
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* @see https://www.w3.org/TR/activitypub/#delete-activity-outbox
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*
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* @param WP_Error $wp_error A WP_Error-Response of an HTTP-Request
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*
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* @return boolean true if HTTP-Code is 410 or 404
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*/
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function is_tombstone( $wp_error ) {
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if ( ! is_wp_error( $wp_error ) ) {
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return false;
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}
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if ( in_array( (int) $wp_error->get_error_code(), array( 404, 410 ), true ) ) {
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return true;
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}
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return false;
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}
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/**
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* Get the REST URL relative to this plugin's namespace.
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*
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* @param string $path Optional. REST route path. Otherwise this plugin's namespaced root.
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*
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* @return string REST URL relative to this plugin's namespace.
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*/
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function get_rest_url_by_path( $path = '' ) {
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// we'll handle the leading slash.
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$path = ltrim( $path, '/' );
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$namespaced_path = sprintf( '/%s/%s', ACTIVITYPUB_REST_NAMESPACE, $path );
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return \get_rest_url( null, $namespaced_path );
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}
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/**
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* Convert a string from camelCase to snake_case.
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*
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* @param string $string The string to convert.
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*
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* @return string The converted string.
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*/
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// phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.stringFound
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function camel_to_snake_case( $string ) {
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return strtolower( preg_replace( '/(?<!^)[A-Z]/', '_$0', $string ) );
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}
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/**
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* Convert a string from snake_case to camelCase.
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*
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* @param string $string The string to convert.
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*
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* @return string The converted string.
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*/
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// phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.stringFound
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function snake_to_camel_case( $string ) {
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return lcfirst( str_replace( '_', '', ucwords( $string, '_' ) ) );
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}
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/**
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* Escapes a Tag, to be used as a hashtag.
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*
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* @param string $string The string to escape.
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*
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* @return string The escaped hastag.
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*/
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function esc_hashtag( $string ) {
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$hashtag = \wp_specialchars_decode( $string, ENT_QUOTES );
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// Remove all characters that are not letters, numbers, or underscores.
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$hashtag = \preg_replace( '/emoji-regex(*SKIP)(?!)|[^\p{L}\p{Nd}_]+/u', '_', $hashtag );
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// Capitalize every letter that is preceded by an underscore.
|
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$hashtag = preg_replace_callback(
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'/_(.)/',
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function ( $matches ) {
|
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return '' . strtoupper( $matches[1] );
|
||||
},
|
||||
$hashtag
|
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);
|
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|
||||
// Add a hashtag to the beginning of the string.
|
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$hashtag = ltrim( $hashtag, '#' );
|
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$hashtag = '#' . $hashtag;
|
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|
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/**
|
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* Allow defining your own custom hashtag generation rules.
|
||||
*
|
||||
* @param string $hashtag The hashtag to be returned.
|
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* @param string $string The original string.
|
||||
*/
|
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$hashtag = apply_filters( 'activitypub_esc_hashtag', $hashtag, $string );
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|
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return esc_html( $hashtag );
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}
|
||||
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||||
/**
|
||||
* Check if a request is for an ActivityPub request.
|
||||
*
|
||||
* @return bool False by default.
|
||||
*/
|
||||
function is_activitypub_request() {
|
||||
global $wp_query;
|
||||
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||||
/*
|
||||
* ActivityPub requests are currently only made for
|
||||
* author archives, singular posts, and the homepage.
|
||||
*/
|
||||
if ( ! \is_author() && ! \is_singular() && ! \is_home() && ! defined( '\REST_REQUEST' ) ) {
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return false;
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}
|
||||
|
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// One can trigger an ActivityPub request by adding ?activitypub to the URL.
|
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// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.VariableRedeclaration
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global $wp_query;
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if ( isset( $wp_query->query_vars['activitypub'] ) ) {
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return true;
|
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}
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||||
|
||||
/*
|
||||
* The other (more common) option to make an ActivityPub request
|
||||
* is to send an Accept header.
|
||||
*/
|
||||
if ( isset( $_SERVER['HTTP_ACCEPT'] ) ) {
|
||||
$accept = sanitize_text_field( wp_unslash( $_SERVER['HTTP_ACCEPT'] ) );
|
||||
|
||||
/*
|
||||
* $accept can be a single value, or a comma separated list of values.
|
||||
* We want to support both scenarios,
|
||||
* and return true when the header includes at least one of the following:
|
||||
* - application/activity+json
|
||||
* - application/ld+json
|
||||
* - application/json
|
||||
*/
|
||||
if ( preg_match( '/(application\/(ld\+json|activity\+json|json))/i', $accept ) ) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* This function checks if a user is disabled for ActivityPub.
|
||||
*
|
||||
* @param int $user_id The User-ID.
|
||||
*
|
||||
* @return boolean True if the user is disabled, false otherwise.
|
||||
*/
|
||||
function is_user_disabled( $user_id ) {
|
||||
$return = false;
|
||||
|
||||
switch ( $user_id ) {
|
||||
// if the user is the application user, it's always enabled.
|
||||
case \Activitypub\Collection\Users::APPLICATION_USER_ID:
|
||||
$return = false;
|
||||
break;
|
||||
// if the user is the blog user, it's only enabled in single-user mode.
|
||||
case \Activitypub\Collection\Users::BLOG_USER_ID:
|
||||
if ( is_user_type_disabled( 'blog' ) ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
|
||||
$return = false;
|
||||
break;
|
||||
// if the user is any other user, it's enabled if it can publish posts.
|
||||
default:
|
||||
if ( ! \get_user_by( 'id', $user_id ) ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
|
||||
if ( is_user_type_disabled( 'user' ) ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
|
||||
if ( ! \user_can( $user_id, 'publish_posts' ) ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
|
||||
$return = false;
|
||||
break;
|
||||
}
|
||||
|
||||
return apply_filters( 'activitypub_is_user_disabled', $return, $user_id );
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if a User-Type is disabled for ActivityPub.
|
||||
*
|
||||
* This function is used to check if the 'blog' or 'user'
|
||||
* type is disabled for ActivityPub.
|
||||
*
|
||||
* @param enum $type Can be 'blog' or 'user'.
|
||||
*
|
||||
* @return boolean True if the user type is disabled, false otherwise.
|
||||
*/
|
||||
function is_user_type_disabled( $type ) {
|
||||
switch ( $type ) {
|
||||
case 'blog':
|
||||
if ( \defined( 'ACTIVITYPUB_SINGLE_USER_MODE' ) ) {
|
||||
if ( ACTIVITYPUB_SINGLE_USER_MODE ) {
|
||||
$return = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if ( \defined( 'ACTIVITYPUB_DISABLE_BLOG_USER' ) ) {
|
||||
$return = ACTIVITYPUB_DISABLE_BLOG_USER;
|
||||
break;
|
||||
}
|
||||
|
||||
if ( '1' !== \get_option( 'activitypub_enable_blog_user', '0' ) ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
|
||||
$return = false;
|
||||
break;
|
||||
case 'user':
|
||||
if ( \defined( 'ACTIVITYPUB_SINGLE_USER_MODE' ) ) {
|
||||
if ( ACTIVITYPUB_SINGLE_USER_MODE ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if ( \defined( 'ACTIVITYPUB_DISABLE_USER' ) ) {
|
||||
$return = ACTIVITYPUB_DISABLE_USER;
|
||||
break;
|
||||
}
|
||||
|
||||
if ( '1' !== \get_option( 'activitypub_enable_users', '1' ) ) {
|
||||
$return = true;
|
||||
break;
|
||||
}
|
||||
|
||||
$return = false;
|
||||
break;
|
||||
default:
|
||||
$return = new WP_Error( 'activitypub_wrong_user_type', __( 'Wrong user type', 'activitypub' ), array( 'status' => 400 ) );
|
||||
break;
|
||||
}
|
||||
|
||||
return apply_filters( 'activitypub_is_user_type_disabled', $return, $type );
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the blog is in single-user mode.
|
||||
*
|
||||
* @return boolean True if the blog is in single-user mode, false otherwise.
|
||||
*/
|
||||
function is_single_user() {
|
||||
if (
|
||||
false === is_user_type_disabled( 'blog' ) &&
|
||||
true === is_user_type_disabled( 'user' )
|
||||
) {
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if a site supports the block editor.
|
||||
*
|
||||
* @return boolean True if the site supports the block editor, false otherwise.
|
||||
*/
|
||||
function site_supports_blocks() {
|
||||
if ( \version_compare( \get_bloginfo( 'version' ), '5.9', '<' ) ) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if ( ! \function_exists( 'register_block_type_from_metadata' ) ) {
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Allow plugins to disable block editor support,
|
||||
* thus disabling blocks registered by the ActivityPub plugin.
|
||||
*
|
||||
* @param boolean $supports_blocks True if the site supports the block editor, false otherwise.
|
||||
*/
|
||||
return apply_filters( 'activitypub_site_supports_blocks', true );
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if data is valid JSON.
|
||||
*
|
||||
* @param string $data The data to check.
|
||||
*
|
||||
* @return boolean True if the data is JSON, false otherwise.
|
||||
*/
|
||||
function is_json( $data ) {
|
||||
return \is_array( \json_decode( $data, true ) ) ? true : false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if a blog is public based on the `blog_public` option
|
||||
*
|
||||
* @return bollean True if public, false if not
|
||||
*/
|
||||
function is_blog_public() {
|
||||
return (bool) apply_filters( 'activitypub_is_blog_public', \get_option( 'blog_public', 1 ) );
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user