b744dc551d
* Comments 1 * Delete FUNDING.yml * Add basic BuddyPress support fix #122 thanks and props @skysarwer * change URL to `bp_core_get_user_domain` * fix "Follow" issue fix #133 * fix #135 * version bump * Create phpunit.yml * Update composer.json * Update composer.json * Update phpunit.yml * Update composer.json * Create phpcs.yml * Update phpcs.xml * Update composer.json * phpcs fixes * fix typo * Comments update * webfinger_extract remove extra param * coding standards * Replies Collection, settings, other fixes * Create stale.yml * move stale file * code standards cleanup * Migrate / Update script * bugfix * add settings link to plugin page * fix code standards * fix cs * fix PHPCS * PHPCS fixes * change background image for wp.org * fix docker * fix webfinger for email identifiers fix #152 * version bump * update composer file to fix unit testing * allow plugins * fix dependencies * Migrate tools * code cleanup * regression fix * Fix announce, clarified language * update included filename * code cleanup * Improve migration UX * Add comments view, warnings to migrate page * style fix * more style fixes * Fix send_delete_activity * replace ap_comment_id to reuse replytocom var * Comments class missing attributes * Post class fix attributes * move js file to assets/js * Separate file for Comment processing hooks * fix file path * associate comments to back compat post * Fix js assets enqueue * change regex matching potential hashtags Matches any string starting with '#' and consisting of any number and combination of [A-Za-z0-9_] that is directly followed by whitespace or punctuation. Groups everything after '#' for access in functions using this regex. This fixes #183 (incomplete links on hashtags containing special characters) by not matching these at all. * also detect hashtags at the start of a paragraph * restrict html tags after which to detect a hashtag Hashtags should not be detected after just any html tag - for example not after an opening a or div. To still allow detection at the start of a line, allow specifically p and br to directly precede a hashtag. * fix pagination * Add Custom Post Type support to outbox API * remove comment_type * fix comparison * remove trailing spaces * fix phpcs issues * fix phpcs issues * run phpcs also on pull_requests * fix phpcs issues * support threaded comments from ActivityPub * refactor support for threaded comments from ActivityPub * remove debugging log line * add first unit tests for class inbox * fix code smells * make filter function static * attempt to resolve backwards compatibility issues * update js to new file * delete old js * Remove migrate code * update post meta canonical * remove type and mention meta from comment filters * extract mentions from comment_content * phpcbf * remove extra curly bracket * Remove migrate code * remove version_check() * Update enqueue scripts * Remove remote comments from preprocessing * Reply to comments from Dashboard * rename function, inserts users into reply text * Update dispatch comments * update comment model * fix comment model replies property * fix preprocess_comment cap check * Add webfinger filter to comments * Add comment edit datetime * cleanup * fix var name * cleanup * phpcbf * better actual translation support * Separate comment reply script * migrate dispatch, migrate comment model to transform * ignore WP_Comment type for now * Adds new helpers for resolving inReplyTo url * Update activitypub_send_comment_activity to include type * remove redundant id check * reinclude user_id in saved ap_object meta * update post field meta * Fix comment updated datetime * front-end reply inserts @mentions * enqueue reply script on front end * use const instead of dirname * some simplifications * move some functions * fixes * some more fixes * fix namespace * fix unittests * fix testcase * fixed typo * fix tests * fix tests * fix PHPCS * move functions to transformer class * fix warnings * Link remote comments on frontend * Link to comment source as row action * Init Comments class * remove dead dispatch action * re-add extract mentions filter * Restore and tweak Comment transform * Schedule comments activities for non-admin users * lint * remove context property * rename get_id method to generate_id * fix locale * move functions * PHPDoc * this is never used * remove some edit methods * remove replies for now * remove JS calls * remove reply_recipients * never used * remove other query-vars * otherwise to_json would not work properly * small changes * use `c` for comment IDs * remove comments.php for now maybe re-add it later * wp_insert_post is an action * also parse comment_text * remove duplicate functions * add Base transformer * remove invalid test * update to new query var * update dispatcher to support comments and posts * fix transition * remove unused functions for now * schedule_comment_activity seems to ignore create and update * fix wrong use of functions! * not every platforms sends an URL * check source-id first * remove hashtags for now * fallback to ID * fix typo * move to_activity to Base class * remove unused function * add support for announce and like * also ping inboxes of other commenters in the thread * restructure WebFinger class * some small improvements * simplified to_object class props @Menrath for the feedback and the idea! * fix unit tests * make transformer filterable /cc @Menrath * use transformer factory, so that transformer can be overwritten * phpcs fixes * fix attachments * fix comment transformer * remove comments for now * update readme/changelog * simplify and unify json_encodes --------- Co-authored-by: Django Doucet <mediaformat.ux@gmail.com> Co-authored-by: Andreas <andreas@bocops.de> Co-authored-by: Eana Hufwe <eana@1a23.com> Co-authored-by: Matthew Exon <git.mexon@spamgourmet.com> Co-authored-by: Django Doucet <django.doucet@webdevstudios.com>
241 lines
5.3 KiB
PHP
241 lines
5.3 KiB
PHP
<?php
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namespace Activitypub;
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use WP_Error;
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use Activitypub\Collection\Users;
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/**
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* ActivityPub WebFinger Class
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*
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* @author Matthias Pfefferle
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*
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* @see https://webfinger.net/
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*/
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class Webfinger {
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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 The WordPress user id
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*
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* @return string The user-resource
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*/
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public static function get_user_resource( $user_id ) {
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// use WebFinger plugin if installed
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if ( \function_exists( '\get_webfinger_resource' ) ) {
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return \get_webfinger_resource( $user_id, false );
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}
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$user = Users::get_by_id( $user_id );
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if ( ! $user || is_wp_error( $user ) ) {
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return '';
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}
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return $user->get_resource();
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}
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/**
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* Resolve a WebFinger resource
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*
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* @param string $uri The WebFinger Resource
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*
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* @return string|WP_Error The URL or WP_Error
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*/
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public static function resolve( $uri ) {
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$data = self::get_data( $uri );
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if ( \is_wp_error( $data ) ) {
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return $data;
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}
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foreach ( $data['links'] as $link ) {
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if (
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'self' === $link['rel'] &&
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'application/activity+json' === $link['type']
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) {
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return $link['href'];
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}
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}
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return new WP_Error( 'webfinger_url_no_activitypub', null, $data );
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}
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/**
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* Transform a URI to an acct <identifier>@<host>
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*
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* @param string $uri The URI (acct:, mailto:, http:, https:)
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*
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* @return string|WP_Error Error or acct URI
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*/
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public static function uri_to_acct( $uri ) {
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$data = self::get_data( $uri );
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if ( is_wp_error( $data ) ) {
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return $data;
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}
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// check if subject is an acct URI
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if (
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isset( $data['subject'] ) &&
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\str_starts_with( $data['subject'], 'acct:' )
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) {
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return $data['subject'];
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}
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// search for an acct URI in the aliases
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if ( isset( $data['aliases'] ) ) {
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foreach ( $data['aliases'] as $alias ) {
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if ( \str_starts_with( $alias, 'acct:' ) ) {
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return $alias;
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}
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}
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}
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return new WP_Error(
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'webfinger_url_no_acct',
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__( 'No acct URI found.', 'activitypub' ),
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$data
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);
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}
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/**
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* Convert a URI string to an identifier and its host.
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* Automatically adds acct: if it's missing.
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*
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* @param string $url The URI (acct:, mailto:, http:, https:)
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*
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* @return WP_Error|array Error reaction or array with
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* identifier and host as values
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*/
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public static function get_identifier_and_host( $url ) {
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// remove leading @
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$url = ltrim( $url, '@' );
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if ( ! preg_match( '/^([a-zA-Z+]+):/', $url, $match ) ) {
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$identifier = 'acct:' . $url;
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$scheme = 'acct';
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} else {
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$identifier = $url;
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$scheme = $match[1];
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}
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$host = null;
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switch ( $scheme ) {
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case 'acct':
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case 'mailto':
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case 'xmpp':
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if ( strpos( $identifier, '@' ) !== false ) {
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$host = substr( $identifier, strpos( $identifier, '@' ) + 1 );
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}
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break;
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default:
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$host = wp_parse_url( $identifier, PHP_URL_HOST );
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break;
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}
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if ( empty( $host ) ) {
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return new WP_Error( 'webfinger_invalid_identifier', __( 'Invalid Identifier', 'activitypub' ) );
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}
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return array( $identifier, $host );
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}
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/**
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* Get the WebFinger data for a given URI
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*
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* @param string $uri The Identifier: <identifier>@<host> or URI
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*
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* @return WP_Error|array Error reaction or array with
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* identifier and host as values
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*/
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public static function get_data( $uri ) {
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$identifier_and_host = self::get_identifier_and_host( $uri );
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if ( is_wp_error( $identifier_and_host ) ) {
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return $identifier_and_host;
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}
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$transient_key = self::generate_cache_key( $uri );
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list( $identifier, $host ) = $identifier_and_host;
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$data = \get_transient( $transient_key );
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if ( $data ) {
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return $data;
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}
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$webfinger_url = 'https://' . $host . '/.well-known/webfinger?resource=' . rawurlencode( $identifier );
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$response = wp_safe_remote_get(
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$webfinger_url,
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array(
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'headers' => array( 'Accept' => 'application/jrd+json' ),
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)
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);
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if ( is_wp_error( $response ) ) {
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return new WP_Error(
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'webfinger_url_not_accessible',
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__( 'The WebFinger Resource is not accessible.', 'activitypub' ),
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$webfinger_url
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);
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}
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$body = wp_remote_retrieve_body( $response );
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$data = json_decode( $body, true );
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\set_transient( $transient_key, $data, WEEK_IN_SECONDS );
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return $data;
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}
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/**
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* Get the Remote-Follow endpoint for a given URI
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*
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* @return string|WP_Error Error or the Remote-Follow endpoint URI.
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*/
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public static function get_remote_follow_endpoint( $uri ) {
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$data = self::get_data( $uri );
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if ( is_wp_error( $data ) ) {
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return $data;
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}
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if ( empty( $data['links'] ) ) {
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return new WP_Error(
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'webfinger_missing_links',
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__( 'No valid Link elements found.', 'activitypub' ),
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$data
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);
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}
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foreach ( $data['links'] as $link ) {
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if ( 'http://ostatus.org/schema/1.0/subscribe' === $link['rel'] ) {
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return $link['template'];
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}
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}
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return new WP_Error(
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'webfinger_missing_remote_follow_endpoint',
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__( 'No valid Remote-Follow endpoint found.', 'activitypub' ),
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$data
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);
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}
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/**
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* Generate a cache key for a given URI
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*
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* @param string $uri A WebFinger Resource URI
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*
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* @return string The cache key
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*/
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public static function generate_cache_key( $uri ) {
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$uri = ltrim( $uri, '@' );
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if ( filter_var( $uri, FILTER_VALIDATE_EMAIL ) ) {
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$uri = 'acct:' . $uri;
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}
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return 'webfinger_' . md5( $uri );
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}
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}
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