modified file plugins

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committed by Gitium
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MIT License
Copyright (c) 2019 Matthias Pfefferle
Copyright (c) 2023 Automattic
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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<?php
/**
* Plugin Name: ActivityPub
* Plugin URI: https://github.com/pfefferle/wordpress-activitypub/
* Description: The ActivityPub protocol is a decentralized social networking protocol based upon the ActivityStreams 2.0 data format.
* Version: 2.6.1
* Author: Matthias Pfefferle & Automattic
* Author URI: https://automattic.com/
* License: MIT
* License URI: http://opensource.org/licenses/MIT
* Requires PHP: 7.0
* Text Domain: activitypub
* Domain Path: /languages
*/
namespace Activitypub;
use function Activitypub\is_blog_public;
use function Activitypub\site_supports_blocks;
require_once __DIR__ . '/includes/compat.php';
require_once __DIR__ . '/includes/functions.php';
\define( 'ACTIVITYPUB_PLUGIN_VERSION', '2.6.1' );
/**
* Initialize the plugin constants.
*/
\defined( 'ACTIVITYPUB_REST_NAMESPACE' ) || \define( 'ACTIVITYPUB_REST_NAMESPACE', 'activitypub/1.0' );
\defined( 'ACTIVITYPUB_EXCERPT_LENGTH' ) || \define( 'ACTIVITYPUB_EXCERPT_LENGTH', 400 );
\defined( 'ACTIVITYPUB_SHOW_PLUGIN_RECOMMENDATIONS' ) || \define( 'ACTIVITYPUB_SHOW_PLUGIN_RECOMMENDATIONS', true );
\defined( 'ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS' ) || \define( 'ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS', 3 );
\defined( 'ACTIVITYPUB_HASHTAGS_REGEXP' ) || \define( 'ACTIVITYPUB_HASHTAGS_REGEXP', '(?:(?<=\s)|(?<=<p>)|(?<=<br>)|^)#([A-Za-z0-9_]+)(?:(?=\s|[[:punct:]]|$))' );
\defined( 'ACTIVITYPUB_USERNAME_REGEXP' ) || \define( 'ACTIVITYPUB_USERNAME_REGEXP', '(?:([A-Za-z0-9\._-]+)@((?:[A-Za-z0-9_-]+\.)+[A-Za-z]+))' );
\defined( 'ACTIVITYPUB_CUSTOM_POST_CONTENT' ) || \define( 'ACTIVITYPUB_CUSTOM_POST_CONTENT', "<h2>[ap_title]</h2>\n\n[ap_content]\n\n[ap_hashtags]\n\n[ap_shortlink]" );
\defined( 'ACTIVITYPUB_AUTHORIZED_FETCH' ) || \define( 'ACTIVITYPUB_AUTHORIZED_FETCH', false );
\defined( 'ACTIVITYPUB_DISABLE_REWRITES' ) || \define( 'ACTIVITYPUB_DISABLE_REWRITES', false );
\defined( 'ACTIVITYPUB_DISABLE_INCOMING_INTERACTIONS' ) || \define( 'ACTIVITYPUB_DISABLE_INCOMING_INTERACTIONS', false );
\defined( 'ACTIVITYPUB_DISABLE_OUTGOING_INTERACTIONS' ) || \define( 'ACTIVITYPUB_DISABLE_OUTGOING_INTERACTIONS', false );
\defined( 'ACTIVITYPUB_SHARED_INBOX_FEATURE' ) || \define( 'ACTIVITYPUB_SHARED_INBOX_FEATURE', false );
\defined( 'ACTIVITYPUB_SEND_VARY_HEADER' ) || \define( 'ACTIVITYPUB_SEND_VARY_HEADER', false );
\defined( 'ACTIVITYPUB_DEFAULT_OBJECT_TYPE' ) || \define( 'ACTIVITYPUB_DEFAULT_OBJECT_TYPE', 'note' );
\define( 'ACTIVITYPUB_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
\define( 'ACTIVITYPUB_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
\define( 'ACTIVITYPUB_PLUGIN_FILE', plugin_dir_path( __FILE__ ) . '/' . basename( __FILE__ ) );
\define( 'ACTIVITYPUB_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
/**
* Initialize REST routes.
*/
function rest_init() {
Rest\Actors::init();
Rest\Outbox::init();
Rest\Inbox::init();
Rest\Followers::init();
Rest\Following::init();
Rest\Webfinger::init();
Rest\Comment::init();
Rest\Server::init();
Rest\Collection::init();
// load NodeInfo endpoints only if blog is public
if ( is_blog_public() ) {
Rest\NodeInfo::init();
}
}
\add_action( 'rest_api_init', __NAMESPACE__ . '\rest_init' );
/**
* Initialize plugin.
*/
function plugin_init() {
\add_action( 'init', array( __NAMESPACE__ . '\Migration', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Activitypub', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Activity_Dispatcher', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Handler', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Admin', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Hashtag', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Mention', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Health_Check', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Scheduler', 'init' ) );
\add_action( 'init', array( __NAMESPACE__ . '\Comment', 'init' ) );
if ( site_supports_blocks() ) {
\add_action( 'init', array( __NAMESPACE__ . '\Blocks', 'init' ) );
}
$debug_file = __DIR__ . '/includes/debug.php';
if ( \WP_DEBUG && file_exists( $debug_file ) && is_readable( $debug_file ) ) {
require_once $debug_file;
Debug::init();
}
require_once __DIR__ . '/integration/class-webfinger.php';
Integration\Webfinger::init();
require_once __DIR__ . '/integration/class-nodeinfo.php';
Integration\Nodeinfo::init();
require_once __DIR__ . '/integration/class-enable-mastodon-apps.php';
Integration\Enable_Mastodon_Apps::init();
require_once __DIR__ . '/integration/class-opengraph.php';
Integration\Opengraph::init();
if ( \defined( 'JETPACK__VERSION' ) && ! \defined( 'IS_WPCOM' ) ) {
require_once __DIR__ . '/integration/class-jetpack.php';
Integration\Jetpack::init();
}
}
\add_action( 'plugins_loaded', __NAMESPACE__ . '\plugin_init' );
/**
* Class Autoloader
*/
\spl_autoload_register(
function ( $full_class ) {
$base_dir = __DIR__ . '/includes/';
$base = 'Activitypub\\';
if ( strncmp( $full_class, $base, strlen( $base ) ) === 0 ) {
$maybe_uppercase = str_replace( $base, '', $full_class );
$class = strtolower( $maybe_uppercase );
// All classes should be capitalized. If this is instead looking for a lowercase method, we ignore that.
if ( $maybe_uppercase === $class ) {
return;
}
if ( false !== strpos( $class, '\\' ) ) {
$parts = explode( '\\', $class );
$class = array_pop( $parts );
$sub_dir = strtr( implode( '/', $parts ), '_', '-' );
$base_dir = $base_dir . $sub_dir . '/';
}
$filename = 'class-' . strtr( $class, '_', '-' );
$file = $base_dir . $filename . '.php';
if ( file_exists( $file ) && is_readable( $file ) ) {
require_once $file;
} else {
// translators: %s is the class name
\wp_die( sprintf( esc_html__( 'Required class not found or not readable: %s', 'activitypub' ), esc_html( $full_class ) ) );
}
}
}
);
/**
* Add plugin settings link
*/
function plugin_settings_link( $actions ) {
$settings_link = array();
$settings_link[] = \sprintf(
'<a href="%1s">%2s</a>',
\menu_page_url( 'activitypub', false ),
\__( 'Settings', 'activitypub' )
);
return \array_merge( $settings_link, $actions );
}
\add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), __NAMESPACE__ . '\plugin_settings_link' );
\register_activation_hook(
__FILE__,
array(
__NAMESPACE__ . '\Activitypub',
'activate',
)
);
\register_deactivation_hook(
__FILE__,
array(
__NAMESPACE__ . '\Activitypub',
'deactivate',
)
);
\register_uninstall_hook(
__FILE__,
array(
__NAMESPACE__ . '\Activitypub',
'uninstall',
)
);
/**
* Only load code that needs BuddyPress to run once BP is loaded and initialized.
*/
add_action(
'bp_include',
function () {
require_once __DIR__ . '/integration/class-buddypress.php';
Integration\Buddypress::init();
},
0
);
/**
* `get_plugin_data` wrapper
*
* @return array The plugin metadata array
*/
function get_plugin_meta( $default_headers = array() ) {
if ( ! $default_headers ) {
$default_headers = array(
'Name' => 'Plugin Name',
'PluginURI' => 'Plugin URI',
'Version' => 'Version',
'Description' => 'Description',
'Author' => 'Author',
'AuthorURI' => 'Author URI',
'TextDomain' => 'Text Domain',
'DomainPath' => 'Domain Path',
'Network' => 'Network',
'RequiresWP' => 'Requires at least',
'RequiresPHP' => 'Requires PHP',
'UpdateURI' => 'Update URI',
);
}
return \get_file_data( __FILE__, $default_headers, 'plugin' );
}
/**
* Plugin Version Number used for caching.
*/
function get_plugin_version() {
if ( \defined( 'ACTIVITYPUB_PLUGIN_VERSION' ) ) {
return ACTIVITYPUB_PLUGIN_VERSION;
}
$meta = get_plugin_meta( array( 'Version' => 'Version' ) );
return $meta['Version'];
}

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.activitypub-settings {
max-width: 800px;
margin: 0 auto;
}
.settings_page_activitypub .notice {
max-width: 800px;
margin: auto;
margin: 0px auto 30px;
}
.settings_page_activitypub .wrap {
padding-left: 22px;
}
.activitypub-settings-header {
text-align: center;
margin: 0 0 1rem;
background: #fff;
border-bottom: 1px solid #dcdcde;
}
.activitypub-settings-title-section {
display: flex;
align-items: center;
justify-content: center;
clear: both;
padding-top: 8px;
}
.settings_page_activitypub #wpcontent {
padding-left: 0;
}
.activitypub-settings-tabs-wrapper {
display: -ms-inline-grid;
-ms-grid-columns: auto auto auto;
vertical-align: top;
display: inline-grid;
grid-template-columns: auto auto auto;
}
.activitypub-settings-tab.active {
box-shadow: inset 0 -3px #3582c4;
font-weight: 600;
}
.activitypub-settings-tab {
display: block;
text-decoration: none;
color: inherit;
padding: .5rem 1rem 1rem;
margin: 0 1rem;
transition: box-shadow .5s ease-in-out;
}
.wp-header-end {
visibility: hidden;
margin: -2px 0 0;
}
summary {
cursor: pointer;
text-decoration: underline;
color: #2271b1;
}
.activitypub-settings-accordion {
border: 1px solid #c3c4c7;
}
.activitypub-settings-accordion-heading {
margin: 0;
border-top: 1px solid #c3c4c7;
font-size: inherit;
line-height: inherit;
font-weight: 600;
color: inherit;
}
.activitypub-settings-accordion-heading:first-child {
border-top: none;
}
.activitypub-settings-accordion-panel {
margin: 0;
padding: 1em 1.5em;
background: #fff;
}
.activitypub-settings-accordion-trigger {
background: #fff;
border: 0;
color: #2c3338;
cursor: pointer;
display: flex;
font-weight: 400;
margin: 0;
padding: 1em 3.5em 1em 1.5em;
min-height: 46px;
position: relative;
text-align: left;
width: 100%;
align-items: center;
justify-content: space-between;
-webkit-user-select: auto;
user-select: auto;
}
.activitypub-settings-accordion-trigger {
color: #2c3338;
cursor: pointer;
font-weight: 400;
text-align: left;
}
.activitypub-settings-accordion-trigger .title {
pointer-events: none;
font-weight: 600;
flex-grow: 1;
}
.activitypub-settings-accordion-trigger .icon,
.activitypub-settings-accordion-viewed .icon {
border: solid #50575e medium;
border-width: 0 2px 2px 0;
height: .5rem;
pointer-events: none;
position: absolute;
right: 1.5em;
top: 50%;
transform: translateY(-70%) rotate(45deg);
width: .5rem;
}
.activitypub-settings-accordion-trigger[aria-expanded="true"] .icon {
transform: translateY(-30%) rotate(-135deg);
}
.activitypub-settings-accordion-trigger:active,
.activitypub-settings-accordion-trigger:hover {
background: #f6f7f7;
}
.activitypub-settings-accordion-trigger:focus {
color: #1d2327;
border: none;
box-shadow: none;
outline-offset: -1px;
outline: 2px solid #2271b1;
background-color: #f6f7f7;
}
.activitypub-settings
input.blog-user-identifier {
text-align: right;
}
.activitypub-settings
.header-image {
width: 100%;
height: 80px;
position: relative;
display: block;
margin-bottom: 40px;
background-image: rgb(168,165,175);
background-image: linear-gradient(180deg, red, yellow);
background-size: cover;
}
.activitypub-settings
.logo {
height: 80px;
width: 80px;
position: relative;
top: 40px;
left: 40px;
}
.settings_page_activitypub .box {
border: 1px solid #c3c4c7;
background-color: #fff;
padding: 1em 1.5em;
margin-bottom: 1.5em;
}
.settings_page_activitypub .activitypub-welcome-page .box label {
font-weight: bold;
}
.settings_page_activitypub .activitypub-welcome-page input {
font-size: 20px;
width: 95%;
}
.settings_page_activitypub .plugin-recommendations {
border-bottom: none;
margin-bottom: 0;
}
#dashboard_right_now li a.activitypub-followers::before {
content: "\f307";
font-family: dashicons;
}

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jQuery( function( $ ) {
// Accordion handling in various areas.
$( '.activitypub-settings-accordion' ).on( 'click', '.activitypub-settings-accordion-trigger', function() {
var isExpanded = ( 'true' === $( this ).attr( 'aria-expanded' ) );
if ( isExpanded ) {
$( this ).attr( 'aria-expanded', 'false' );
$( '#' + $( this ).attr( 'aria-controls' ) ).attr( 'hidden', true );
} else {
$( this ).attr( 'aria-expanded', 'true' );
$( '#' + $( this ).attr( 'aria-controls' ) ).attr( 'hidden', false );
}
} );
$(document).on( 'wp-plugin-install-success', function( event, response ) {
setTimeout( function() {
$( '.activate-now' ).removeClass( 'thickbox open-plugin-details-modal' );
}, 1200 );
} );
} );

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{
"$schema": "https://schemas.wp.org/trunk/block.json",
"name": "activitypub/follow-me",
"apiVersion": 3,
"version": "1.0.0",
"title": "Follow me on the Fediverse",
"category": "widgets",
"description": "Display your Fediverse profile so that visitors can follow you.",
"textdomain": "activitypub",
"icon": "groups",
"supports": {
"html": false,
"color": {
"gradients": true,
"link": true,
"__experimentalDefaultControls": {
"background": true,
"text": true,
"link": true
}
},
"__experimentalBorder": {
"radius": true,
"width": true,
"color": true,
"style": true
},
"typography": {
"fontSize": true,
"__experimentalDefaultControls": {
"fontSize": true
}
}
},
"attributes": {
"selectedUser": {
"type": "string",
"default": "site"
}
},
"editorScript": "file:./index.js",
"viewScript": "file:./view.js",
"style": [
"file:./style-view.css",
"wp-components"
]
}

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<?php return array('dependencies' => array('react', 'wp-api-fetch', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-compose', 'wp-data', 'wp-element', 'wp-i18n', 'wp-primitives'), 'version' => '7be9f9b97d08a20bde26');

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.activitypub__modal.components-modal__frame{background-color:#f7f7f7;color:#333}.activitypub__modal.components-modal__frame .components-modal__header-heading,.activitypub__modal.components-modal__frame h4{color:#333;letter-spacing:inherit;word-spacing:inherit}.activitypub__modal.components-modal__frame .components-modal__header .components-button:hover{color:var(--wp--preset--color--white)}.activitypub__dialog{max-width:40em}.activitypub__dialog h4{line-height:1;margin:0}.activitypub__dialog .activitypub-dialog__section{margin-bottom:2em}.activitypub__dialog .activitypub-dialog__remember{margin-top:1em}.activitypub__dialog .activitypub-dialog__description{font-size:var(--wp--preset--font-size--normal,.75rem);margin:.33em 0 1em}.activitypub__dialog .activitypub-dialog__button-group{align-items:flex-end;display:flex;justify-content:flex-end}.activitypub__dialog .activitypub-dialog__button-group svg{height:21px;margin-left:.5em;width:21px}.activitypub__dialog .activitypub-dialog__button-group input{background-color:var(--wp--preset--color--white);border-radius:0 50px 50px 0;border-width:1px;border:1px solid var(--wp--preset--color--black);color:var(--wp--preset--color--black);flex:1;font-size:16px;height:inherit;line-height:1;margin-left:0;padding:15px 23px}.activitypub__dialog .activitypub-dialog__button-group button{align-self:center;background-color:var(--wp--preset--color--black);border-radius:50px 0 0 50px;border-width:1px;color:var(--wp--preset--color--white);font-size:16px;height:inherit;line-height:1;margin-right:0;padding:15px 23px;text-decoration:none}.activitypub__dialog .activitypub-dialog__button-group button:hover{border:inherit}.activitypub-follow-me-block-wrapper{width:100%}.activitypub-follow-me-block-wrapper.has-background .activitypub-profile,.activitypub-follow-me-block-wrapper.has-border-color .activitypub-profile{padding-right:1rem;padding-left:1rem}.activitypub-follow-me-block-wrapper .activitypub-profile{align-items:center;display:flex;padding:1rem 0}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__avatar{border-radius:50%;height:75px;margin-left:1rem;width:75px}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__content{flex:1;min-width:0}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__handle,.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__name{line-height:1.2;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__name{font-size:1.25em}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__follow{align-self:center;background-color:var(--wp--preset--color--black);color:var(--wp--preset--color--white);margin-right:1rem}

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.activitypub__modal.components-modal__frame{background-color:#f7f7f7;color:#333}.activitypub__modal.components-modal__frame .components-modal__header-heading,.activitypub__modal.components-modal__frame h4{color:#333;letter-spacing:inherit;word-spacing:inherit}.activitypub__modal.components-modal__frame .components-modal__header .components-button:hover{color:var(--wp--preset--color--white)}.activitypub__dialog{max-width:40em}.activitypub__dialog h4{line-height:1;margin:0}.activitypub__dialog .activitypub-dialog__section{margin-bottom:2em}.activitypub__dialog .activitypub-dialog__remember{margin-top:1em}.activitypub__dialog .activitypub-dialog__description{font-size:var(--wp--preset--font-size--normal,.75rem);margin:.33em 0 1em}.activitypub__dialog .activitypub-dialog__button-group{align-items:flex-end;display:flex;justify-content:flex-end}.activitypub__dialog .activitypub-dialog__button-group svg{height:21px;margin-right:.5em;width:21px}.activitypub__dialog .activitypub-dialog__button-group input{background-color:var(--wp--preset--color--white);border-radius:50px 0 0 50px;border-width:1px;border:1px solid var(--wp--preset--color--black);color:var(--wp--preset--color--black);flex:1;font-size:16px;height:inherit;line-height:1;margin-right:0;padding:15px 23px}.activitypub__dialog .activitypub-dialog__button-group button{align-self:center;background-color:var(--wp--preset--color--black);border-radius:0 50px 50px 0;border-width:1px;color:var(--wp--preset--color--white);font-size:16px;height:inherit;line-height:1;margin-left:0;padding:15px 23px;text-decoration:none}.activitypub__dialog .activitypub-dialog__button-group button:hover{border:inherit}.activitypub-follow-me-block-wrapper{width:100%}.activitypub-follow-me-block-wrapper.has-background .activitypub-profile,.activitypub-follow-me-block-wrapper.has-border-color .activitypub-profile{padding-left:1rem;padding-right:1rem}.activitypub-follow-me-block-wrapper .activitypub-profile{align-items:center;display:flex;padding:1rem 0}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__avatar{border-radius:50%;height:75px;margin-right:1rem;width:75px}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__content{flex:1;min-width:0}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__handle,.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__name{line-height:1.2;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__name{font-size:1.25em}.activitypub-follow-me-block-wrapper .activitypub-profile .activitypub-profile__follow{align-self:center;background-color:var(--wp--preset--color--black);color:var(--wp--preset--color--white);margin-left:1rem}

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<?php return array('dependencies' => array('react', 'wp-api-fetch', 'wp-components', 'wp-compose', 'wp-dom-ready', 'wp-element', 'wp-i18n', 'wp-primitives'), 'version' => 'ab8c0dad126bb0a61ed6');

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{
"$schema": "https://schemas.wp.org/trunk/block.json",
"name": "activitypub/followers",
"apiVersion": 3,
"version": "1.0.0",
"title": "Fediverse Followers",
"category": "widgets",
"description": "Display your followers from the Fediverse on your website.",
"textdomain": "activitypub",
"icon": "groups",
"supports": {
"html": false
},
"attributes": {
"title": {
"type": "string",
"default": "Fediverse Followers"
},
"selectedUser": {
"type": "string",
"default": "site"
},
"per_page": {
"type": "number",
"default": 10
},
"order": {
"type": "string",
"default": "desc",
"enum": [
"asc",
"desc"
]
}
},
"styles": [
{
"name": "default",
"label": "No Lines",
"isDefault": true
},
{
"name": "with-lines",
"label": "Lines"
},
{
"name": "compact",
"label": "Compact"
}
],
"editorScript": "file:./index.js",
"viewScript": "file:./view.js",
"style": [
"file:./style-view.css",
"wp-block-query-pagination"
]
}

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<?php return array('dependencies' => array('react', 'wp-api-fetch', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-data', 'wp-element', 'wp-i18n', 'wp-primitives', 'wp-url'), 'version' => '3d39b46b3415c2d57654');

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.activitypub__modal.components-modal__frame{background-color:#f7f7f7;color:#333}.activitypub__modal.components-modal__frame .components-modal__header-heading,.activitypub__modal.components-modal__frame h4{color:#333;letter-spacing:inherit;word-spacing:inherit}.activitypub__modal.components-modal__frame .components-modal__header .components-button:hover{color:var(--wp--preset--color--white)}.activitypub__dialog{max-width:40em}.activitypub__dialog h4{line-height:1;margin:0}.activitypub__dialog .activitypub-dialog__section{margin-bottom:2em}.activitypub__dialog .activitypub-dialog__remember{margin-top:1em}.activitypub__dialog .activitypub-dialog__description{font-size:var(--wp--preset--font-size--normal,.75rem);margin:.33em 0 1em}.activitypub__dialog .activitypub-dialog__button-group{align-items:flex-end;display:flex;justify-content:flex-end}.activitypub__dialog .activitypub-dialog__button-group svg{height:21px;margin-right:.5em;width:21px}.activitypub__dialog .activitypub-dialog__button-group input{background-color:var(--wp--preset--color--white);border-radius:50px 0 0 50px;border-width:1px;border:1px solid var(--wp--preset--color--black);color:var(--wp--preset--color--black);flex:1;font-size:16px;height:inherit;line-height:1;margin-right:0;padding:15px 23px}.activitypub__dialog .activitypub-dialog__button-group button{align-self:center;background-color:var(--wp--preset--color--black);border-radius:0 50px 50px 0;border-width:1px;color:var(--wp--preset--color--white);font-size:16px;height:inherit;line-height:1;margin-left:0;padding:15px 23px;text-decoration:none}.activitypub__dialog .activitypub-dialog__button-group button:hover{border:inherit}.activitypub-remote-profile-delete{align-self:center;color:inherit;font-size:inherit;height:inherit;padding:0 5px}.activitypub-remote-profile-delete:hover{background:inherit;border:inherit}.activitypub-remote-reply{display:flex}

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<?php
/**
* Inspired by the PHP ActivityPub Library by @Landrok
*
* @link https://github.com/landrok/activitypub
*/
namespace Activitypub\Activity;
use Activitypub\Activity\Base_Object;
/**
* \Activitypub\Activity\Activity implements the common
* attributes of an Activity.
*
* @see https://www.w3.org/TR/activitystreams-core/#activities
* @see https://www.w3.org/TR/activitystreams-core/#intransitiveactivities
*/
class Activity extends Base_Object {
const JSON_LD_CONTEXT = array(
'https://www.w3.org/ns/activitystreams',
);
/**
* @var string
*/
protected $type = 'Activity';
/**
* Describes the direct object of the activity.
* For instance, in the activity "John added a movie to his
* wishlist", the object of the activity is the movie added.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-object-term
*
* @var string
* | Base_Object
* | Link
* | null
*/
protected $object;
/**
* Describes one or more entities that either performed or are
* expected to perform the activity.
* Any single activity can have multiple actors.
* The actor MAY be specified using an indirect Link.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-actor
*
* @var string
* | \ActivityPhp\Type\Extended\AbstractActor
* | array<Actor>
* | array<Link>
* | Link
*/
protected $actor;
/**
* The indirect object, or target, of the activity.
* The precise meaning of the target is largely dependent on the
* type of action being described but will often be the object of
* the English preposition "to".
* For instance, in the activity "John added a movie to his
* wishlist", the target of the activity is John's wishlist.
* An activity can have more than one target.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-target
*
* @var string
* | ObjectType
* | array<ObjectType>
* | Link
* | array<Link>
*/
protected $target;
/**
* Describes the result of the activity.
* For instance, if a particular action results in the creation of
* a new resource, the result property can be used to describe
* that new resource.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-result
*
* @var string
* | ObjectType
* | Link
* | null
*/
protected $result;
/**
* An indirect object of the activity from which the
* activity is directed.
* The precise meaning of the origin is the object of the English
* preposition "from".
* For instance, in the activity "John moved an item to List B
* from List A", the origin of the activity is "List A".
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-origin
*
* @var string
* | ObjectType
* | Link
* | null
*/
protected $origin;
/**
* One or more objects used (or to be used) in the completion of an
* Activity.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-instrument
*
* @var string
* | ObjectType
* | Link
* | null
*/
protected $instrument;
/**
* Set the object and copy Object properties to the Activity.
*
* Any to, bto, cc, bcc, and audience properties specified on the object
* MUST be copied over to the new Create activity by the server.
*
* @see https://www.w3.org/TR/activitypub/#object-without-create
*
* @param string|Base_Objectr|Link|null $object
*
* @return void
*/
public function set_object( $object ) {
// convert array to object
if ( is_array( $object ) ) {
$object = self::init_from_array( $object );
}
// set object
$this->set( 'object', $object );
if ( ! is_object( $object ) ) {
return;
}
foreach ( array( 'to', 'bto', 'cc', 'bcc', 'audience' ) as $i ) {
$this->set( $i, $object->get( $i ) );
}
if ( $object->get_published() && ! $this->get_published() ) {
$this->set( 'published', $object->get_published() );
}
if ( $object->get_updated() && ! $this->get_updated() ) {
$this->set( 'updated', $object->get_updated() );
}
if ( $object->get_attributed_to() && ! $this->get_actor() ) {
$this->set( 'actor', $object->get_attributed_to() );
}
if ( $object->get_id() && ! $this->get_id() ) {
$id = strtok( $object->get_id(), '#' );
if ( $object->get_updated() ) {
$updated = $object->get_updated();
} else {
$updated = $object->get_published();
}
$this->set( 'id', $id . '#activity-' . strtolower( $this->get_type() ) . '-' . $updated );
}
}
/**
* The context of an Activity is usually just the context of the object it contains.
*
* @return array $context A compacted JSON-LD context.
*/
public function get_json_ld_context() {
if ( $this->object instanceof Base_Object ) {
$class = get_class( $this->object );
if ( $class && $class::JSON_LD_CONTEXT ) {
// Without php 5.6 support this could be just: 'return $this->object::JSON_LD_CONTEXT;'
return $class::JSON_LD_CONTEXT;
}
}
return static::JSON_LD_CONTEXT;
}
}

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<?php
/**
* Inspired by the PHP ActivityPub Library by @Landrok
*
* @link https://github.com/landrok/activitypub
*/
namespace Activitypub\Activity;
/**
* \Activitypub\Activity\Actor is an implementation of
* one an Activity Streams Actor.
*
* Represents an individual actor.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#actor-types
*/
class Actor extends Base_Object {
// Reduced context for actors. TODO: still unused.
const JSON_LD_CONTEXT = array(
'https://www.w3.org/ns/activitystreams',
'https://w3id.org/security/v1',
'https://purl.archive.org/socialweb/webfinger',
array(
'schema' => 'http://schema.org#',
'toot' => 'http://joinmastodon.org/ns#',
'webfinger' => 'https://webfinger.net/#',
'lemmy' => 'https://join-lemmy.org/ns#',
'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
'PropertyValue' => 'schema:PropertyValue',
'value' => 'schema:value',
'Hashtag' => 'as:Hashtag',
'featured' => array(
'@id' => 'toot:featured',
'@type' => '@id',
),
'featuredTags' => array(
'@id' => 'toot:featuredTags',
'@type' => '@id',
),
'moderators' => array(
'@id' => 'lemmy:moderators',
'@type' => '@id',
),
'postingRestrictedToMods' => 'lemmy:postingRestrictedToMods',
'discoverable' => 'toot:discoverable',
'indexable' => 'toot:indexable',
'resource' => 'webfinger:resource',
),
);
/**
* @var string
*/
protected $type;
/**
* A reference to an ActivityStreams OrderedCollection comprised of
* all the messages received by the actor.
*
* @see https://www.w3.org/TR/activitypub/#inbox
*
* @var string
* | null
*/
protected $inbox;
/**
* A reference to an ActivityStreams OrderedCollection comprised of
* all the messages produced by the actor.
*
* @see https://www.w3.org/TR/activitypub/#outbox
*
* @var string
* | null
*/
protected $outbox;
/**
* A link to an ActivityStreams collection of the actors that this
* actor is following.
*
* @see https://www.w3.org/TR/activitypub/#following
*
* @var string
*/
protected $following;
/**
* A link to an ActivityStreams collection of the actors that
* follow this actor.
*
* @see https://www.w3.org/TR/activitypub/#followers
*
* @var string
*/
protected $followers;
/**
* A link to an ActivityStreams collection of objects this actor has
* liked.
*
* @see https://www.w3.org/TR/activitypub/#liked
*
* @var string
*/
protected $liked;
/**
* A list of supplementary Collections which may be of interest.
*
* @see https://www.w3.org/TR/activitypub/#streams-property
*
* @var array
*/
protected $streams = array();
/**
* A short username which may be used to refer to the actor, with no
* uniqueness guarantees.
*
* @see https://www.w3.org/TR/activitypub/#preferredUsername
*
* @var string|null
*/
protected $preferred_username;
/**
* A JSON object which maps additional typically server/domain-wide
* endpoints which may be useful either for this actor or someone
* referencing this actor. This mapping may be nested inside the
* actor document as the value or may be a link to a JSON-LD
* document with these properties.
*
* @see https://www.w3.org/TR/activitypub/#endpoints
*
* @var string|array|null
*/
protected $endpoints;
/**
* It's not part of the ActivityPub protocol but it's a quite common
* practice to handle an actor public key with a publicKey array:
* [
* 'id' => 'https://my-example.com/actor#main-key'
* 'owner' => 'https://my-example.com/actor',
* 'publicKeyPem' => '-----BEGIN PUBLIC KEY-----
* MIIBI [...]
* DQIDAQAB
* -----END PUBLIC KEY-----'
* ]
*
* @see https://www.w3.org/wiki/SocialCG/ActivityPub/Authentication_Authorization#Signing_requests_using_HTTP_Signatures
*
* @var string|array|null
*/
protected $public_key;
/**
* It's not part of the ActivityPub protocol but it's a quite common
* practice to lock an account. If anabled, new followers will not be
* automatically accepted, but will instead require you to manually
* approve them.
*
* WordPress does only support 'false' at the moment.
*
* @see https://docs.joinmastodon.org/spec/activitypub/#as
*
* @context as:manuallyApprovesFollowers
*
* @var boolean
*/
protected $manually_approves_followers = false;
}

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<?php
/**
* Inspired by the PHP ActivityPub Library by @Landrok
*
* @link https://github.com/landrok/activitypub
*/
namespace Activitypub\Activity;
use WP_Error;
use ReflectionClass;
use DateTime;
use function Activitypub\camel_to_snake_case;
use function Activitypub\snake_to_camel_case;
/**
* Base_Object is an implementation of one of the
* Activity Streams Core Types.
*
* The Object is the primary base type for the Activity Streams
* vocabulary.
*
* Note: Object is a reserved keyword in PHP. It has been suffixed with
* 'Base_' for this reason.
*
* @see https://www.w3.org/TR/activitystreams-core/#object
*/
class Base_Object {
const JSON_LD_CONTEXT = array(
'https://www.w3.org/ns/activitystreams',
array(
'Hashtag' => 'as:Hashtag',
),
);
/**
* The object's unique global identifier
*
* @see https://www.w3.org/TR/activitypub/#obj-id
*
* @var string
*/
protected $id;
/**
* @var string
*/
protected $type = 'Object';
/**
* A resource attached or related to an object that potentially
* requires special handling.
* The intent is to provide a model that is at least semantically
* similar to attachments in email.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-attachment
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $attachment;
/**
* One or more entities to which this object is attributed.
* The attributed entities might not be Actors. For instance, an
* object might be attributed to the completion of another activity.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-attributedto
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $attributed_to;
/**
* One or more entities that represent the total population of
* entities for which the object can considered to be relevant.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-audience
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $audience;
/**
* The content or textual representation of the Object encoded as a
* JSON string. By default, the value of content is HTML.
* The mediaType property can be used in the object to indicate a
* different content type.
*
* The content MAY be expressed using multiple language-tagged
* values.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-content
*
* @var string|null
*/
protected $content;
/**
* The context within which the object exists or an activity was
* performed.
* The notion of "context" used is intentionally vague.
* The intended function is to serve as a means of grouping objects
* and activities that share a common originating context or
* purpose. An example could be all activities relating to a common
* project or event.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-context
*
* @var string
* | ObjectType
* | Link
* | null
*/
protected $context;
/**
* The content MAY be expressed using multiple language-tagged
* values.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-content
*
* @var array|null
*/
protected $content_map;
/**
* A simple, human-readable, plain-text name for the object.
* HTML markup MUST NOT be included.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-name
*
* @var string|null xsd:string
*/
protected $name;
/**
* The name MAY be expressed using multiple language-tagged values.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-name
*
* @var array|null rdf:langString
*/
protected $name_map;
/**
* The date and time describing the actual or expected ending time
* of the object.
* When used with an Activity object, for instance, the endTime
* property specifies the moment the activity concluded or
* is expected to conclude.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-endtime
*
* @var string|null
*/
protected $end_time;
/**
* The entity (e.g. an application) that generated the object.
*
* @var string|null
*/
protected $generator;
/**
* An entity that describes an icon for this object.
* The image should have an aspect ratio of one (horizontal)
* to one (vertical) and should be suitable for presentation
* at a small size.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-icon
*
* @var string
* | Image
* | Link
* | array<Image>
* | array<Link>
* | null
*/
protected $icon;
/**
* An entity that describes an image for this object.
* Unlike the icon property, there are no aspect ratio
* or display size limitations assumed.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-image-term
*
* @var string
* | Image
* | Link
* | array<Image>
* | array<Link>
* | null
*/
protected $image;
/**
* One or more entities for which this object is considered a
* response.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-inreplyto
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $in_reply_to;
/**
* One or more physical or logical locations associated with the
* object.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-location
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $location;
/**
* An entity that provides a preview of this object.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-preview
*
* @var string
* | ObjectType
* | Link
* | null
*/
protected $preview;
/**
* The date and time at which the object was published
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-published
*
* @var string|null xsd:dateTime
*/
protected $published;
/**
* The date and time describing the actual or expected starting time
* of the object.
* When used with an Activity object, for instance, the startTime
* property specifies the moment the activity began
* or is scheduled to begin.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-starttime
*
* @var string|null xsd:dateTime
*/
protected $start_time;
/**
* A natural language summarization of the object encoded as HTML.
* Multiple language tagged summaries MAY be provided.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-summary
*
* @var string
* | ObjectType
* | Link
* | null
*/
protected $summary;
/**
* The content MAY be expressed using multiple language-tagged
* values.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-summary
*
* @var array<string>|null
*/
protected $summary_map;
/**
* One or more "tags" that have been associated with an objects.
* A tag can be any kind of Object.
* The key difference between attachment and tag is that the former
* implies association by inclusion, while the latter implies
* associated by reference.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-tag
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $tag;
/**
* The date and time at which the object was updated
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-updated
*
* @var string|null xsd:dateTime
*/
protected $updated;
/**
* One or more links to representations of the object.
*
* @var string
* | array<string>
* | Link
* | array<Link>
* | null
*/
protected $url;
/**
* An entity considered to be part of the public primary audience
* of an Object
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-to
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $to;
/**
* An Object that is part of the private primary audience of this
* Object.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-bto
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $bto;
/**
* An Object that is part of the public secondary audience of this
* Object.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-cc
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $cc;
/**
* One or more Objects that are part of the private secondary
* audience of this Object.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-bcc
*
* @var string
* | ObjectType
* | Link
* | array<ObjectType>
* | array<Link>
* | null
*/
protected $bcc;
/**
* The MIME media type of the value of the content property.
* If not specified, the content property is assumed to contain
* text/html content.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-mediatype
*
* @var string|null
*/
protected $media_type;
/**
* When the object describes a time-bound resource, such as an audio
* or video, a meeting, etc, the duration property indicates the
* object's approximate duration.
* The value MUST be expressed as an xsd:duration as defined by
* xmlschema11-2, section 3.3.6 (e.g. a period of 5 seconds is
* represented as "PT5S").
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
*
* @var string|null
*/
protected $duration;
/**
* Intended to convey some sort of source from which the content
* markup was derived, as a form of provenance, or to support
* future editing by clients.
*
* @see https://www.w3.org/TR/activitypub/#source-property
*
* @var ObjectType
*/
protected $source;
/**
* A Collection containing objects considered to be responses to
* this object.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-replies
*
* @var string
* | Collection
* | Link
* | null
*/
protected $replies;
/**
* Magic function to implement getter and setter
*
* @param string $method The method name.
* @param string $params The method params.
*
* @return void
*/
public function __call( $method, $params ) {
$var = \strtolower( \substr( $method, 4 ) );
if ( \strncasecmp( $method, 'get', 3 ) === 0 ) {
if ( ! $this->has( $var ) ) {
return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
}
return $this->$var;
}
if ( \strncasecmp( $method, 'set', 3 ) === 0 ) {
return $this->set( $var, $params[0] );
}
if ( \strncasecmp( $method, 'add', 3 ) === 0 ) {
$this->add( $var, $params[0] );
}
}
/**
* Magic function, to transform the object to string.
*
* @return string The object id.
*/
public function __toString() {
return $this->to_string();
}
/**
* Function to transform the object to string.
*
* @return string The object id.
*/
public function to_string() {
return $this->get_id();
}
/**
* Generic getter.
*
* @param string $key The key to get.
*
* @return mixed The value.
*/
public function get( $key ) {
if ( ! $this->has( $key ) ) {
return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
}
return call_user_func( array( $this, 'get_' . $key ) );
}
/**
* Check if the object has a key
*
* @param string $key The key to check.
*
* @return boolean True if the object has the key.
*/
public function has( $key ) {
return property_exists( $this, $key );
}
/**
* Generic setter.
*
* @param string $key The key to set.
* @param string $value The value to set.
*
* @return mixed The value.
*/
public function set( $key, $value ) {
if ( ! $this->has( $key ) ) {
return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
}
$this->$key = $value;
return $this;
}
/**
* Generic adder.
*
* @param string $key The key to set.
* @param mixed $value The value to add.
*
* @return mixed The value.
*/
public function add( $key, $value ) {
if ( ! $this->has( $key ) ) {
return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
}
if ( ! isset( $this->$key ) ) {
$this->$key = array();
}
$attributes = $this->$key;
$attributes[] = $value;
$this->$key = $attributes;
return $this->$key;
}
/**
* Convert JSON input to an array.
*
* @return string The JSON string.
*
* @return \Activitypub\Activity\Base_Object An Object built from the JSON string.
*/
public static function init_from_json( $json ) {
$array = \json_decode( $json, true );
if ( ! is_array( $array ) ) {
$array = array();
}
return self::init_from_array( $array );
}
/**
* Convert JSON input to an array.
*
* @return string The object array.
*
* @return \Activitypub\Activity\Base_Object An Object built from the JSON string.
*/
public static function init_from_array( $array ) {
if ( ! is_array( $array ) ) {
return new WP_Error( 'invalid_array', __( 'Invalid array', 'activitypub' ), array( 'status' => 404 ) );
}
$object = new static();
foreach ( $array as $key => $value ) {
$key = camel_to_snake_case( $key );
call_user_func( array( $object, 'set_' . $key ), $value );
}
return $object;
}
/**
* Convert JSON input to an array and pre-fill the object.
*
* @param string $json The JSON string.
*/
public function from_json( $json ) {
$array = \json_decode( $json, true );
$this->from_array( $array );
}
/**
* Convert JSON input to an array and pre-fill the object.
*
* @param array $array The array.
*/
public function from_array( $array ) {
foreach ( $array as $key => $value ) {
if ( $value ) {
$key = camel_to_snake_case( $key );
call_user_func( array( $this, 'set_' . $key ), $value );
}
}
}
/**
* Convert Object to an array.
*
* It tries to get the object attributes if they exist
* and falls back to the getters. Empty values are ignored.
*
* @param bool $include_json_ld_context Whether to include the JSON-LD context. Default true.
*
* @return array An array built from the Object.
*/
public function to_array( $include_json_ld_context = true ) {
$array = array();
$vars = get_object_vars( $this );
foreach ( $vars as $key => $value ) {
// ignotre all _prefixed keys.
if ( '_' === substr( $key, 0, 1 ) ) {
continue;
}
// if value is empty, try to get it from a getter.
if ( ! $value ) {
$value = call_user_func( array( $this, 'get_' . $key ) );
}
if ( is_object( $value ) ) {
$value = $value->to_array( false );
}
// if value is still empty, ignore it for the array and continue.
if ( isset( $value ) ) {
$array[ snake_to_camel_case( $key ) ] = $value;
}
}
if ( $include_json_ld_context ) {
// Get JsonLD context and move it to '@context' at the top.
$array = array_merge( array( '@context' => $this->get_json_ld_context() ), $array );
}
$class = new ReflectionClass( $this );
$class = strtolower( $class->getShortName() );
$array = \apply_filters( 'activitypub_activity_object_array', $array, $class, $this->id, $this );
$array = \apply_filters( "activitypub_activity_{$class}_object_array", $array, $this->id, $this );
return $array;
}
/**
* Convert Object to JSON.
*
* @param bool $include_json_ld_context Whether to include the JSON-LD context. Default true.
*
* @return string The JSON string.
*/
public function to_json( $include_json_ld_context = true ) {
$array = $this->to_array( $include_json_ld_context );
$options = \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_QUOT;
/*
* Options to be passed to json_encode()
*
* @param int $options The current options flags
*/
$options = \apply_filters( 'activitypub_json_encode_options', $options );
return \wp_json_encode( $array, $options );
}
/**
* Returns the keys of the object vars.
*
* @return array The keys of the object vars.
*/
public function get_object_var_keys() {
return \array_keys( \get_object_vars( $this ) );
}
/**
* Returns the JSON-LD context of this object.
*
* @return array $context A compacted JSON-LD context for the ActivityPub object.
*/
public function get_json_ld_context() {
return static::JSON_LD_CONTEXT;
}
}

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<?php
/**
* ActivityPub Object of type Event.
*
* @package activity-event-transformers
*/
namespace Activitypub\Activity\Extended_Object;
use Activitypub\Activity\Base_Object;
/**
* Event is an implementation of one of the Activity Streams Event object type.
*
* This class contains extra keys as used by Mobilizon to ensure compatibility.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-event
*/
class Event extends Base_Object {
// Human friendly minimal context for full Mobilizon compatible ActivityPub events.
const JSON_LD_CONTEXT = array(
'https://schema.org/', // The base context is schema.org, cause it is used a lot.
'https://www.w3.org/ns/activitystreams', // The ActivityStreams context overrides everyting also defined in schema.org.
array( // The keys here override/extend the context even more.
'pt' => 'https://joinpeertube.org/ns#',
'mz' => 'https://joinmobilizon.org/ns#',
'status' => 'http://www.w3.org/2002/12/cal/ical#status',
'commentsEnabled' => 'pt:commentsEnabled',
'isOnline' => 'mz:isOnline',
'timezone' => 'mz:timezone',
'participantCount' => 'mz:participantCount',
'anonymousParticipationEnabled' => 'mz:anonymousParticipationEnabled',
'joinMode' => array(
'@id' => 'mz:joinMode',
'@type' => 'mz:joinModeType',
),
'externalParticipationUrl' => array(
'@id' => 'mz:externalParticipationUrl',
'@type' => 'schema:URL',
),
'repliesModerationOption' => array(
'@id' => 'mz:repliesModerationOption',
'@type' => '@vocab',
),
'contacts' => array(
'@id' => 'mz:contacts',
'@type' => '@id',
),
),
);
/**
* Mobilizon compatible values for repliesModertaionOption.
* @var array
*/
const REPLIES_MODERATION_OPTION_TYPES = array( 'allow_all', 'closed' );
/**
* Mobilizon compatible values for joinModeTypes.
*/
const JOIN_MODE_TYPES = array( 'free', 'restricted', 'external' ); // and 'invite', but not used by mobilizon atm
/**
* Allowed values for ical VEVENT STATUS.
* @var array
*/
const ICAL_EVENT_STATUS_TYPES = array( 'TENTATIVE', 'CONFIRMED', 'CANCELLED' );
/**
* Default event categories.
*
* These values currently reflect the default set as proposed by Mobilizon to maximize interoperability.
* @var array
*/
const DEFAULT_EVENT_CATEGORIES = array(
'ARTS',
'BOOK_CLUBS',
'BUSINESS',
'CAUSES',
'COMEDY',
'CRAFTS',
'FOOD_DRINK',
'HEALTH',
'MUSIC',
'AUTO_BOAT_AIR',
'COMMUNITY',
'FAMILY_EDUCATION',
'FASHION_BEAUTY',
'FILM_MEDIA',
'GAMES',
'LANGUAGE_CULTURE',
'LEARNING',
'LGBTQ',
'MOVEMENTS_POLITICS',
'NETWORKING',
'PARTY',
'PERFORMING_VISUAL_ARTS',
'PETS',
'PHOTOGRAPHY',
'OUTDOORS_ADVENTURE',
'SPIRITUALITY_RELIGION_BELIEFS',
'SCIENCE_TECH',
'SPORTS',
'THEATRE',
'MEETING', // Default value.
);
/**
* Event is an implementation of one of the
* Activity Streams
*
* @var string
*/
protected $type = 'Event';
/**
* The Title of the event.
*/
protected $name;
/**
* The events contacts
*
* @context {
* '@id' => 'mz:contacts',
* '@type' => '@id',
* }
*
* @var array Array of contacts (ActivityPub actor IDs).
*/
protected $contacts;
/**
* Extension invented by PeerTube whether comments/replies are <enabled>
* Mobilizon also implemented this as a fallback to their own
* repliesModerationOption.
*
* @see https://docs.joinpeertube.org/api/activitypub#video
* @see https://docs.joinmobilizon.org/contribute/activity_pub/
* @var bool|null
*/
protected $comments_enabled;
/**
* @context https://joinmobilizon.org/ns#timezone
* @var string
*/
protected $timezone;
/**
* @context https://joinmobilizon.org/ns#repliesModerationOption
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#repliesmoderation
* @var string
*/
protected $replies_moderation_option;
/**
* @context https://joinmobilizon.org/ns#anonymousParticipationEnabled
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#anonymousparticipationenabled
* @var bool
*/
protected $anonymous_participation_enabled;
/**
* @context https://schema.org/category
* @var enum
*/
protected $category;
/**
* @context https://schema.org/inLanguage
* @var
*/
protected $in_language;
/**
* @context https://joinmobilizon.org/ns#isOnline
* @var bool
*/
protected $is_online;
/**
* @context https://www.w3.org/2002/12/cal/ical#status
* @var enum
*/
protected $status;
/**
* Which actor created the event.
*
* This field is needed due to the current group structure of Mobilizon.
*
* @todo this seems to not be a default property of an Object but needed by mobilizon.
* @var string
*/
protected $actor;
/**
* @context https://joinmobilizon.org/ns#externalParticipationUrl
* @var string
*/
protected $external_participation_url;
/**
* @context https://joinmobilizon.org/ns#joinMode
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#joinmode
* @var
*/
protected $join_mode;
/**
* @context https://joinmobilizon.org/ns#participantCount
* @var int
*/
protected $participant_count;
/**
* @context https://schema.org/maximumAttendeeCapacity
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#maximumattendeecapacity
* @var int
*/
protected $maximum_attendee_capacity;
/**
* @context https://schema.org/remainingAttendeeCapacity
* @see https://docs.joinmobilizon.org/contribute/activity_pub/#remainignattendeecapacity
* @var int
*/
protected $remaining_attendee_capacity;
/**
* Setter for the timezone.
*
* The passed timezone is only set when it is a valid one, otherwise the site's timezone is used.
*
* @param string $timezone The timezone string to be set, e.g. 'Europe/Berlin'.
*/
public function set_timezone( $timezone ) {
if ( in_array( $timezone, timezone_identifiers_list(), true ) ) {
$this->timezone = $timezone;
} else {
$this->timezone = wp_timezone_string();
}
return $this;
}
/**
* Custom setter for repliesModerationOption which also directy sets commentsEnabled accordingly.
*
* @param string $type
*/
public function set_replies_moderation_option( $type ) {
if ( in_array( $type, self::REPLIES_MODERATION_OPTION_TYPES, true ) ) {
$this->replies_moderation_option = $type;
$this->comments_enabled = ( 'allow_all' === $type ) ? true : false;
} else {
_doing_it_wrong(
__METHOD__,
'The replies moderation option must be either allow_all or closed.',
'<version_placeholder>'
);
}
return $this;
}
/**
* Custom setter for commentsEnabled which also directly sets repliesModerationOption accordingly.
*
* @param bool $comments_enabled
*/
public function set_comments_enabled( $comments_enabled ) {
if ( is_bool( $comments_enabled ) ) {
$this->comments_enabled = $comments_enabled;
$this->replies_moderation_option = $comments_enabled ? 'allow_all' : 'closed';
} else {
_doing_it_wrong(
__METHOD__,
'The commentsEnabled must be boolean.',
'<version_placeholder>'
);
}
return $this;
}
/**
* Custom setter for the ical status that checks whether the status is an ical event status.
*
* @param string $status
*/
public function set_status( $status ) {
if ( in_array( $status, self::ICAL_EVENT_STATUS_TYPES, true ) ) {
$this->status = $status;
} else {
_doing_it_wrong(
__METHOD__,
'The status of the event must be a VEVENT iCal status.',
'<version_placeholder>'
);
}
return $this;
}
/**
* Custom setter for the event category.
*
* Falls back to Mobilizons default category.
*
* @param string $category
* @param bool $mobilizon_compatibilty Whether the category must be compatibly with Mobilizon.
*/
public function set_category( $category, $mobilizon_compatibilty = true ) {
if ( $mobilizon_compatibilty ) {
$this->category = in_array( $category, self::DEFAULT_EVENT_CATEGORIES, true ) ? $category : 'MEETING';
} else {
$this->category = $category;
}
return $this;
}
/**
* Custom setter for an external participation url.
*
* Automatically sets the joinMode to true if called.
*
* @param string $url
*/
public function set_external_participation_url( $url ) {
if ( preg_match( '/^https?:\/\/.*/i', $url ) ) {
$this->external_participation_url = $url;
$this->join_mode = 'external';
}
return $this;
}
}

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<?php
/**
* Event is an implementation of one of the
* Activity Streams Event object type
*
* @package activity-event-transformers
*/
namespace Activitypub\Activity\Extended_Object;
use Activitypub\Activity\Base_Object;
/**
* Event is an implementation of one of the
* Activity Streams Event object type
*
* The Object is the primary base type for the Activity Streams
* vocabulary.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-event
*/
class Place extends Base_Object {
/**
* Place is an implementation of one of the
* Activity Streams
*
* @var string
*/
protected $type = 'Place';
/**
* Indicates the accuracy of position coordinates on a Place objects.
* Expressed in properties of percentage. e.g. "94.0" means "94.0% accurate".
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-accuracy
* @var float xsd:float [>= 0.0f, <= 100.0f]
*/
protected $accuracy;
/**
* Indicates the altitude of a place. The measurement units is indicated using the units property.
* If units is not specified, the default is assumed to be "m" indicating meters.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-altitude
* @var float xsd:float
*/
protected $altitude;
/**
* The latitude of a place.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-latitude
* @var float xsd:float
*/
protected $latitude;
/**
* The longitude of a place.
*
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-longitude
* @var float xsd:float
*/
protected $longitude;
/**
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-radius
* @var float
*/
protected $radius;
/**
* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-units
* @var string
*/
protected $units;
/**
* @var Postal_Address|string
*/
protected $address;
public function set_address( $address ) {
if ( is_string( $address ) || is_array( $address ) ) {
$this->address = $address;
} else {
_doing_it_wrong(
__METHOD__,
'The address must be either a string or an array like schema.org/PostalAddress.',
'<version_placeholder>'
);
}
}
}

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<?php
namespace Activitypub;
use WP_Post;
use WP_Comment;
use Activitypub\Activity\Activity;
use Activitypub\Collection\Users;
use Activitypub\Collection\Followers;
use Activitypub\Transformer\Factory;
use Activitypub\Transformer\Post;
use Activitypub\Transformer\Comment;
use function Activitypub\is_single_user;
use function Activitypub\is_user_disabled;
use function Activitypub\safe_remote_post;
use function Activitypub\set_wp_object_state;
/**
* ActivityPub Activity_Dispatcher Class
*
* @author Matthias Pfefferle
*
* @see https://www.w3.org/TR/activitypub/
*/
class Activity_Dispatcher {
/**
* Initialize the class, registering WordPress hooks.
*/
public static function init() {
\add_action( 'activitypub_send_post', array( self::class, 'send_post' ), 10, 2 );
\add_action( 'activitypub_send_comment', array( self::class, 'send_comment' ), 10, 2 );
\add_action( 'activitypub_send_activity', array( self::class, 'send_activity' ), 10, 2 );
\add_action( 'activitypub_send_activity', array( self::class, 'send_activity_or_announce' ), 10, 2 );
\add_action( 'activitypub_send_update_profile_activity', array( self::class, 'send_profile_update' ), 10, 1 );
}
/**
* Send Activities to followers and mentioned users or `Announce` (boost) a blog post.
*
* @param mixed $wp_object The ActivityPub Post.
* @param string $type The Activity-Type.
*
* @return void
*/
public static function send_activity_or_announce( $wp_object, $type ) {
if ( is_user_type_disabled( 'blog' ) ) {
return;
}
if ( is_single_user() ) {
self::send_activity( $wp_object, $type, Users::BLOG_USER_ID );
} else {
self::send_announce( $wp_object, $type );
}
}
/**
* Send Activities to followers and mentioned users.
*
* @param mixed $wp_object The ActivityPub Post.
* @param string $type The Activity-Type.
*
* @return void
*/
public static function send_activity( $wp_object, $type, $user_id = null ) {
$transformer = Factory::get_transformer( $wp_object ); // Could potentially return a `\WP_Error` instance.
if ( \is_wp_error( $transformer ) ) {
return;
}
if ( null !== $user_id ) {
$transformer->change_wp_user_id( $user_id );
}
$user_id = $transformer->get_wp_user_id();
if ( is_user_disabled( $user_id ) ) {
return;
}
$activity = $transformer->to_activity( $type );
self::send_activity_to_followers( $activity, $user_id, $wp_object );
}
/**
* Send Announces to followers and mentioned users.
*
* @param mixed $wp_object The ActivityPub Post.
* @param string $type The Activity-Type.
*
* @return void
*/
public static function send_announce( $wp_object, $type ) {
if ( ! in_array( $type, array( 'Create', 'Update', 'Delete' ), true ) ) {
return;
}
if ( is_user_disabled( Users::BLOG_USER_ID ) ) {
return;
}
$transformer = Factory::get_transformer( $wp_object );
if ( \is_wp_error( $transformer ) ) {
return;
}
$user_id = Users::BLOG_USER_ID;
$activity = $transformer->to_activity( $type );
$user = Users::get_by_id( Users::BLOG_USER_ID );
$announce = new Activity();
$announce->set_type( 'Announce' );
$announce->set_object( $activity );
$announce->set_actor( $user->get_id() );
self::send_activity_to_followers( $announce, $user_id, $wp_object );
}
/**
* Send a "Update" Activity when a user updates their profile.
*
* @param int $user_id The user ID to send an update for.
*
* @return void
*/
public static function send_profile_update( $user_id ) {
$user = Users::get_by_various( $user_id );
// bail if that's not a good user
if ( is_wp_error( $user ) ) {
return;
}
// build the update
$activity = new Activity();
$activity->set_id( $user->get_url() . '#update' );
$activity->set_type( 'Update' );
$activity->set_actor( $user->get_url() );
$activity->set_object( $user->get_url() );
$activity->set_to( 'https://www.w3.org/ns/activitystreams#Public' );
// send the update
self::send_activity_to_followers( $activity, $user_id, $user );
}
/**
* Send an Activity to all followers and mentioned users.
*
* @param Activity $activity The ActivityPub Activity.
* @param int $user_id The user ID.
* @param WP_User|WP_Post|WP_Comment $wp_object The WordPress object.
*
* @return void
*/
private static function send_activity_to_followers( $activity, $user_id, $wp_object ) {
// check if the Activity should be send to the followers
if ( ! apply_filters( 'activitypub_send_activity_to_followers', true, $activity, $user_id, $wp_object ) ) {
return;
}
$follower_inboxes = Followers::get_inboxes( $user_id );
$mentioned_inboxes = array();
$cc = $activity->get_cc();
if ( $cc ) {
$mentioned_inboxes = Mention::get_inboxes( $cc );
}
$inboxes = array_merge( $follower_inboxes, $mentioned_inboxes );
$inboxes = array_unique( $inboxes );
if ( empty( $inboxes ) ) {
return;
}
$json = $activity->to_json();
foreach ( $inboxes as $inbox ) {
safe_remote_post( $inbox, $json, $user_id );
}
set_wp_object_state( $wp_object, 'federated' );
}
/**
* Send a "Create" or "Update" Activity for a WordPress Post.
*
* @param int $id The WordPress Post ID.
* @param string $type The Activity-Type.
*
* @return void
*/
public static function send_post( $id, $type ) {
$post = get_post( $id );
if ( ! $post ) {
return;
}
do_action( 'activitypub_send_activity', $post, $type );
do_action(
sprintf(
'activitypub_send_%s_activity',
\strtolower( $type )
),
$post
);
}
/**
* Send a "Create" or "Update" Activity for a WordPress Comment.
*
* @param int $id The WordPress Comment ID.
* @param string $type The Activity-Type.
*
* @return void
*/
public static function send_comment( $id, $type ) {
$comment = get_comment( $id );
if ( ! $comment ) {
return;
}
do_action( 'activitypub_send_activity', $comment, $type );
do_action(
sprintf(
'activitypub_send_%s_activity',
\strtolower( $type )
),
$comment
);
}
}

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<?php
namespace Activitypub;
use Exception;
use Activitypub\Signature;
use Activitypub\Collection\Users;
use Activitypub\Collection\Followers;
use function Activitypub\is_comment;
use function Activitypub\sanitize_url;
use function Activitypub\is_local_comment;
use function Activitypub\is_user_type_disabled;
use function Activitypub\is_activitypub_request;
use function Activitypub\should_comment_be_federated;
/**
* ActivityPub Class
*
* @author Matthias Pfefferle
*/
class Activitypub {
/**
* Initialize the class, registering WordPress hooks.
*/
public static function init() {
\add_filter( 'template_include', array( self::class, 'render_json_template' ), 99 );
\add_action( 'template_redirect', array( self::class, 'template_redirect' ) );
\add_filter( 'query_vars', array( self::class, 'add_query_vars' ) );
\add_filter( 'pre_get_avatar_data', array( self::class, 'pre_get_avatar_data' ), 11, 2 );
// Add support for ActivityPub to custom post types
$post_types = \get_option( 'activitypub_support_post_types', array( 'post' ) ) ? \get_option( 'activitypub_support_post_types', array( 'post' ) ) : array();
foreach ( $post_types as $post_type ) {
\add_post_type_support( $post_type, 'activitypub' );
}
\add_action( 'wp_trash_post', array( self::class, 'trash_post' ), 1 );
\add_action( 'untrash_post', array( self::class, 'untrash_post' ), 1 );
\add_action( 'init', array( self::class, 'add_rewrite_rules' ), 11 );
\add_action( 'init', array( self::class, 'theme_compat' ), 11 );
\add_action( 'user_register', array( self::class, 'user_register' ) );
\add_action( 'in_plugin_update_message-' . ACTIVITYPUB_PLUGIN_BASENAME, array( self::class, 'plugin_update_message' ) );
\add_filter( 'activitypub_get_actor_extra_fields', array( self::class, 'default_actor_extra_fields' ), 10, 2 );
// register several post_types
self::register_post_types();
}
/**
* Activation Hook
*
* @return void
*/
public static function activate() {
self::flush_rewrite_rules();
Scheduler::register_schedules();
}
/**
* Deactivation Hook
*
* @return void
*/
public static function deactivate() {
self::flush_rewrite_rules();
Scheduler::deregister_schedules();
}
/**
* Uninstall Hook
*
* @return void
*/
public static function uninstall() {
Scheduler::deregister_schedules();
}
/**
* Return a AS2 JSON version of an author, post or page.
*
* @param string $template The path to the template object.
*
* @return string The new path to the JSON template.
*/
public static function render_json_template( $template ) {
if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) {
return $template;
}
if ( ! is_activitypub_request() ) {
return $template;
}
$json_template = false;
if ( \is_author() && ! is_user_disabled( \get_the_author_meta( 'ID' ) ) ) {
$json_template = ACTIVITYPUB_PLUGIN_DIR . '/templates/author-json.php';
} elseif ( is_comment() ) {
$json_template = ACTIVITYPUB_PLUGIN_DIR . '/templates/comment-json.php';
} elseif ( \is_singular() ) {
$json_template = ACTIVITYPUB_PLUGIN_DIR . '/templates/post-json.php';
} elseif ( \is_home() && ! is_user_type_disabled( 'blog' ) ) {
$json_template = ACTIVITYPUB_PLUGIN_DIR . '/templates/blog-json.php';
}
/*
* Check if the request is authorized.
*
* @see https://www.w3.org/wiki/SocialCG/ActivityPub/Primer/Authentication_Authorization#Authorized_fetch
* @see https://swicg.github.io/activitypub-http-signature/#authorized-fetch
*/
if ( $json_template && ACTIVITYPUB_AUTHORIZED_FETCH ) {
$verification = Signature::verify_http_signature( $_SERVER );
if ( \is_wp_error( $verification ) ) {
header( 'HTTP/1.1 401 Unauthorized' );
// fallback as template_loader can't return http headers
return $template;
}
}
if ( $json_template ) {
return $json_template;
}
return $template;
}
/**
* Custom redirects for ActivityPub requests.
*
* @return void
*/
public static function template_redirect() {
$comment_id = get_query_var( 'c', null );
// check if it seems to be a comment
if ( ! $comment_id ) {
return;
}
$comment = get_comment( $comment_id );
// load a 404 page if `c` is set but not valid
if ( ! $comment ) {
global $wp_query;
$wp_query->set_404();
return;
}
// stop if it's not an ActivityPub comment
if ( is_activitypub_request() && ! is_local_comment( $comment ) ) {
return;
}
wp_safe_redirect( get_comment_link( $comment ) );
exit;
}
/**
* Add the 'activitypub' query variable so WordPress won't mangle it.
*/
public static function add_query_vars( $vars ) {
$vars[] = 'activitypub';
$vars[] = 'c';
$vars[] = 'p';
return $vars;
}
/**
* Replaces the default avatar.
*
* @param array $args Arguments passed to get_avatar_data(), after processing.
* @param int|string|object $id_or_email A user ID, email address, or comment object.
*
* @return array $args
*/
public static function pre_get_avatar_data( $args, $id_or_email ) {
if (
! $id_or_email instanceof \WP_Comment ||
! isset( $id_or_email->comment_type ) ||
$id_or_email->user_id
) {
return $args;
}
$allowed_comment_types = \apply_filters( 'get_avatar_comment_types', array( 'comment' ) );
if (
! empty( $id_or_email->comment_type ) &&
! \in_array(
$id_or_email->comment_type,
(array) $allowed_comment_types,
true
)
) {
$args['url'] = false;
/** This filter is documented in wp-includes/link-template.php */
return \apply_filters( 'get_avatar_data', $args, $id_or_email );
}
// Check if comment has an avatar.
$avatar = self::get_avatar_url( $id_or_email->comment_ID );
if ( $avatar ) {
if ( empty( $args['class'] ) ) {
$args['class'] = array();
} elseif ( \is_string( $args['class'] ) ) {
$args['class'] = \explode( ' ', $args['class'] );
}
$args['url'] = $avatar;
$args['class'][] = 'avatar-activitypub';
$args['class'][] = 'u-photo';
$args['class'] = \array_unique( $args['class'] );
}
return $args;
}
/**
* Function to retrieve Avatar URL if stored in meta.
*
* @param int|WP_Comment $comment
*
* @return string $url
*/
public static function get_avatar_url( $comment ) {
if ( \is_numeric( $comment ) ) {
$comment = \get_comment( $comment );
}
return \get_comment_meta( $comment->comment_ID, 'avatar_url', true );
}
/**
* Store permalink in meta, to send delete Activity.
*
* @param string $post_id The Post ID.
*
* @return void
*/
public static function trash_post( $post_id ) {
\add_post_meta(
$post_id,
'activitypub_canonical_url',
\get_permalink( $post_id ),
true
);
}
/**
* Delete permalink from meta
*
* @param string $post_id The Post ID
*
* @return void
*/
public static function untrash_post( $post_id ) {
\delete_post_meta( $post_id, 'activitypub_canonical_url' );
}
/**
* Add rewrite rules
*/
public static function add_rewrite_rules() {
// If another system needs to take precedence over the ActivityPub rewrite rules,
// they can define their own and will manually call the appropriate functions as required.
if ( ACTIVITYPUB_DISABLE_REWRITES ) {
return;
}
if ( ! \class_exists( 'Webfinger' ) ) {
\add_rewrite_rule(
'^.well-known/webfinger',
'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/webfinger',
'top'
);
}
if ( ! \class_exists( 'Nodeinfo_Endpoint' ) && true === (bool) \get_option( 'blog_public', 1 ) ) {
\add_rewrite_rule(
'^.well-known/nodeinfo',
'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/nodeinfo/discovery',
'top'
);
\add_rewrite_rule(
'^.well-known/x-nodeinfo2',
'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/nodeinfo2',
'top'
);
}
\add_rewrite_rule(
'^@([\w\-\.]+)',
'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/actors/$matches[1]',
'top'
);
\add_rewrite_endpoint( 'activitypub', EP_AUTHORS | EP_PERMALINK | EP_PAGES );
}
/**
* Flush rewrite rules;
*/
public static function flush_rewrite_rules() {
self::add_rewrite_rules();
\flush_rewrite_rules();
}
/**
* Theme compatibility stuff
*
* @return void
*/
public static function theme_compat() {
$site_icon = get_theme_support( 'custom-logo' );
if ( ! $site_icon ) {
// custom logo support
add_theme_support(
'custom-logo',
array(
'height' => 80,
'width' => 80,
)
);
}
$custom_header = get_theme_support( 'custom-header' );
if ( ! $custom_header ) {
// This theme supports a custom header
$custom_header_args = array(
'width' => 1250,
'height' => 600,
'header-text' => true,
);
add_theme_support( 'custom-header', $custom_header_args );
}
// We assume that you want to use Post-Formats when enabling the setting
if ( 'wordpress-post-format' === \get_option( 'activitypub_object_type', ACTIVITYPUB_DEFAULT_OBJECT_TYPE ) ) {
if ( ! get_theme_support( 'post-formats' ) ) {
// Add support for the Aside, Gallery Post Formats...
add_theme_support(
'post-formats',
array(
'gallery',
'status',
'image',
'video',
'audio',
)
);
}
}
}
/**
* Display plugin upgrade notice to users
*
* @param array $data The plugin data
*
* @return void
*/
public static function plugin_update_message( $data ) {
if ( ! isset( $data['upgrade_notice'] ) ) {
return;
}
printf(
'<div class="update-message">%s</div>',
wp_kses(
wpautop( $data['upgrade_notice '] ),
array(
'p' => array(),
'a' => array( 'href', 'title' ),
'strong' => array(),
'em' => array(),
)
)
);
}
/**
* Register the "Followers" Taxonomy
*
* @return void
*/
private static function register_post_types() {
\register_post_type(
Followers::POST_TYPE,
array(
'labels' => array(
'name' => _x( 'Followers', 'post_type plural name', 'activitypub' ),
'singular_name' => _x( 'Follower', 'post_type single name', 'activitypub' ),
),
'public' => false,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'delete_with_user' => false,
'can_export' => true,
'supports' => array(),
)
);
\register_post_meta(
Followers::POST_TYPE,
'activitypub_inbox',
array(
'type' => 'string',
'single' => true,
'sanitize_callback' => 'sanitize_url',
)
);
\register_post_meta(
Followers::POST_TYPE,
'activitypub_errors',
array(
'type' => 'string',
'single' => false,
'sanitize_callback' => function ( $value ) {
if ( ! is_string( $value ) ) {
throw new Exception( 'Error message is no valid string' );
}
return esc_sql( $value );
},
)
);
\register_post_meta(
Followers::POST_TYPE,
'activitypub_user_id',
array(
'type' => 'string',
'single' => false,
'sanitize_callback' => function ( $value ) {
return esc_sql( $value );
},
)
);
\register_post_meta(
Followers::POST_TYPE,
'activitypub_actor_json',
array(
'type' => 'string',
'single' => true,
'sanitize_callback' => function ( $value ) {
return sanitize_text_field( $value );
},
)
);
\register_post_type(
'ap_extrafield',
array(
'labels' => array(
'name' => _x( 'Extra fields', 'post_type plural name', 'activitypub' ),
'singular_name' => _x( 'Extra field', 'post_type single name', 'activitypub' ),
'add_new' => __( 'Add new', 'activitypub' ),
'add_new_item' => __( 'Add new extra field', 'activitypub' ),
'new_item' => __( 'New extra field', 'activitypub' ),
'edit_item' => __( 'Edit extra field', 'activitypub' ),
'view_item' => __( 'View extra field', 'activitypub' ),
'all_items' => __( 'All extra fields', 'activitypub' ),
),
'public' => false,
'hierarchical' => false,
'query_var' => false,
'has_archive' => false,
'publicly_queryable' => false,
'show_in_menu' => false,
'delete_with_user' => true,
'can_export' => true,
'exclude_from_search' => true,
'show_in_rest' => true,
'map_meta_cap' => true,
'show_ui' => true,
'supports' => array( 'title', 'editor' ),
)
);
\do_action( 'activitypub_after_register_post_type' );
}
/**
* Add the 'activitypub' capability to users who can publish posts.
*
* @param int $user_id User ID.
*
* @param array $userdata The raw array of data passed to wp_insert_user().
*/
public static function user_register( $user_id ) {
if ( \user_can( $user_id, 'publish_posts' ) ) {
$user = \get_user_by( 'id', $user_id );
$user->add_cap( 'activitypub' );
}
}
/**
* Add default extra fields to an actor.
*
* @param array $extra_fields The extra fields.
* @param int $user_id The User-ID.
*
* @return array The extra fields.
*/
public static function default_actor_extra_fields( $extra_fields, $user_id ) {
if ( $extra_fields || ! $user_id ) {
return $extra_fields;
}
$already_migrated = \get_user_meta( $user_id, 'activitypub_default_extra_fields', true );
if ( $already_migrated ) {
return $extra_fields;
}
$defaults = array(
\__( 'Blog', 'activitypub' ) => \home_url( '/' ),
\__( 'Profile', 'activitypub' ) => \get_author_posts_url( $user_id ),
\__( 'Homepage', 'activitypub' ) => \get_the_author_meta( 'user_url', $user_id ),
);
foreach ( $defaults as $title => $url ) {
if ( ! $url ) {
continue;
}
$extra_field = array(
'post_type' => 'ap_extrafield',
'post_title' => $title,
'post_status' => 'publish',
'post_author' => $user_id,
'post_content' => sprintf(
'<!-- wp:paragraph --><p><a rel="me" title="%s" target="_blank" href="%s">%s</a></p><!-- /wp:paragraph -->',
\esc_attr( $url ),
$url,
\wp_parse_url( $url, \PHP_URL_HOST )
),
'comment_status' => 'closed',
);
$extra_field_id = wp_insert_post( $extra_field );
$extra_fields[] = get_post( $extra_field_id );
}
\update_user_meta( $user_id, 'activitypub_default_extra_fields', true );
return $extra_fields;
}
}

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@ -0,0 +1,649 @@
<?php
namespace Activitypub;
use WP_User_Query;
use Activitypub\Model\Blog;
use Activitypub\Activitypub;
use Activitypub\Collection\Users;
use function Activitypub\count_followers;
use function Activitypub\is_user_disabled;
use function Activitypub\was_comment_received;
use function Activitypub\is_comment_federatable;
use function Activitypub\add_default_actor_extra_fields;
/**
* ActivityPub Admin Class
*
* @author Matthias Pfefferle
*/
class Admin {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
\add_action( 'admin_menu', array( self::class, 'admin_menu' ) );
\add_action( 'admin_init', array( self::class, 'register_settings' ) );
\add_action( 'load-comment.php', array( self::class, 'edit_comment' ) );
\add_action( 'load-post.php', array( self::class, 'edit_post' ) );
\add_action( 'load-edit.php', array( self::class, 'list_posts' ) );
\add_action( 'personal_options_update', array( self::class, 'save_user_description' ) );
\add_action( 'admin_enqueue_scripts', array( self::class, 'enqueue_scripts' ) );
\add_action( 'admin_notices', array( self::class, 'admin_notices' ) );
\add_filter( 'comment_row_actions', array( self::class, 'comment_row_actions' ), 10, 2 );
\add_filter( 'manage_edit-comments_columns', array( static::class, 'manage_comment_columns' ) );
\add_action( 'manage_comments_custom_column', array( static::class, 'manage_comments_custom_column' ), 9, 2 );
\add_filter( 'manage_posts_columns', array( static::class, 'manage_post_columns' ), 10, 2 );
\add_action( 'manage_posts_custom_column', array( self::class, 'manage_posts_custom_column' ), 10, 2 );
\add_filter( 'manage_users_columns', array( self::class, 'manage_users_columns' ), 10, 1 );
\add_action( 'manage_users_custom_column', array( self::class, 'manage_users_custom_column' ), 10, 3 );
\add_filter( 'bulk_actions-users', array( self::class, 'user_bulk_options' ) );
\add_filter( 'handle_bulk_actions-users', array( self::class, 'handle_bulk_request' ), 10, 3 );
if ( ! is_user_disabled( get_current_user_id() ) ) {
\add_action( 'show_user_profile', array( self::class, 'add_profile' ) );
}
\add_filter( 'dashboard_glance_items', array( self::class, 'dashboard_glance_items' ) );
}
/**
* Add admin menu entry
*/
public static function admin_menu() {
$settings_page = \add_options_page(
'Welcome',
'ActivityPub',
'manage_options',
'activitypub',
array( self::class, 'settings_page' )
);
\add_action( 'load-' . $settings_page, array( self::class, 'add_settings_help_tab' ) );
// user has to be able to publish posts
if ( ! is_user_disabled( get_current_user_id() ) ) {
$followers_list_page = \add_users_page( \__( 'Followers', 'activitypub' ), \__( 'Followers', 'activitypub' ), 'read', 'activitypub-followers-list', array( self::class, 'followers_list_page' ) );
\add_action( 'load-' . $followers_list_page, array( self::class, 'add_followers_list_help_tab' ) );
\add_users_page( \__( 'Extra Fields', 'activitypub' ), \__( 'Extra Fields', 'activitypub' ), 'read', esc_url( admin_url( '/edit.php?post_type=ap_extrafield' ) ) );
}
}
/**
* Display admin menu notices about configuration problems or conflicts.
*
* @return void
*/
public static function admin_notices() {
$permalink_structure = \get_option( 'permalink_structure' );
if ( empty( $permalink_structure ) ) {
$admin_notice = \__( 'You are using the ActivityPub plugin with a permalink structure of "plain". This will prevent ActivityPub from working. Please go to "Settings" / "Permalinks" and choose a permalink structure other than "plain".', 'activitypub' );
self::show_admin_notice( $admin_notice, 'error' );
}
$current_screen = get_current_screen();
if ( isset( $current_screen->id ) && 'edit-ap_extrafield' === $current_screen->id ) {
?>
<div class="notice" style="margin: 0; background: none; border: none; box-shadow: none; padding: 15px 0 0 0; font-size: 14px;">
<?php esc_html_e( 'These are extra fields that are used for your ActivityPub profile. You can use your homepage, social profiles, pronouns, age, anything you want.', 'activitypub' ); ?>
</div>
<?php
}
}
/**
* Display one admin menu notice about configuration problems or conflicts.
*
* @param string $admin_notice The notice to display.
* @param string $level The level of the notice (error, warning, success, info).
*
* @return void
*/
private static function show_admin_notice( $admin_notice, $level ) {
?>
<div class="notice notice-<?php echo esc_attr( $level ); ?>">
<p><?php echo wp_kses( $admin_notice, 'data' ); ?></p>
</div>
<?php
}
/**
* Load settings page
*/
public static function settings_page() {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended
if ( empty( $_GET['tab'] ) ) {
$tab = 'welcome';
} else {
// phpcs:ignore WordPress.Security.NonceVerification.Recommended
$tab = sanitize_key( $_GET['tab'] );
}
switch ( $tab ) {
case 'settings':
\load_template( ACTIVITYPUB_PLUGIN_DIR . 'templates/settings.php' );
break;
case 'followers':
\load_template( ACTIVITYPUB_PLUGIN_DIR . 'templates/blog-user-followers-list.php' );
break;
case 'welcome':
default:
wp_enqueue_script( 'plugin-install' );
add_thickbox();
wp_enqueue_script( 'updates' );
\load_template( ACTIVITYPUB_PLUGIN_DIR . 'templates/welcome.php' );
break;
}
}
/**
* Load user settings page
*/
public static function followers_list_page() {
// user has to be able to publish posts
if ( ! is_user_disabled( get_current_user_id() ) ) {
\load_template( ACTIVITYPUB_PLUGIN_DIR . 'templates/user-followers-list.php' );
}
}
/**
* Register ActivityPub settings
*/
public static function register_settings() {
\register_setting(
'activitypub',
'activitypub_post_content_type',
array(
'type' => 'string',
'description' => \__( 'Use title and link, summary, full or custom content', 'activitypub' ),
'show_in_rest' => array(
'schema' => array(
'enum' => array(
'title',
'excerpt',
'content',
),
),
),
'default' => 'content',
)
);
\register_setting(
'activitypub',
'activitypub_custom_post_content',
array(
'type' => 'string',
'description' => \__( 'Define your own custom post template', 'activitypub' ),
'show_in_rest' => true,
'default' => ACTIVITYPUB_CUSTOM_POST_CONTENT,
)
);
\register_setting(
'activitypub',
'activitypub_max_image_attachments',
array(
'type' => 'integer',
'description' => \__( 'Number of images to attach to posts.', 'activitypub' ),
'default' => ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS,
)
);
\register_setting(
'activitypub',
'activitypub_object_type',
array(
'type' => 'string',
'description' => \__( 'The Activity-Object-Type', 'activitypub' ),
'show_in_rest' => array(
'schema' => array(
'enum' => array(
'note',
'wordpress-post-format',
),
),
),
'default' => 'note',
)
);
\register_setting(
'activitypub',
'activitypub_use_hashtags',
array(
'type' => 'boolean',
'description' => \__( 'Add hashtags in the content as native tags and replace the #tag with the tag-link', 'activitypub' ),
'default' => '0',
)
);
\register_setting(
'activitypub',
'activitypub_support_post_types',
array(
'type' => 'string',
'description' => \esc_html__( 'Enable ActivityPub support for post types', 'activitypub' ),
'show_in_rest' => true,
'default' => array( 'post' ),
)
);
\register_setting(
'activitypub',
'activitypub_blog_user_identifier',
array(
'type' => 'string',
'description' => \esc_html__( 'The Identifier of the Blog-User', 'activitypub' ),
'show_in_rest' => true,
'default' => Blog::get_default_username(),
'sanitize_callback' => function ( $value ) {
// hack to allow dots in the username
$parts = explode( '.', $value );
$sanitized = array();
foreach ( $parts as $part ) {
$sanitized[] = \sanitize_title( $part );
}
$sanitized = implode( '.', $sanitized );
// check for login or nicename.
$user = new WP_User_Query(
array(
'search' => $sanitized,
'search_columns' => array( 'user_login', 'user_nicename' ),
'number' => 1,
'hide_empty' => true,
'fields' => 'ID',
)
);
if ( $user->results ) {
add_settings_error(
'activitypub_blog_user_identifier',
'activitypub_blog_user_identifier',
\esc_html__( 'You cannot use an existing author\'s name for the blog profile ID.', 'activitypub' ),
'error'
);
return Blog::get_default_username();
}
return $sanitized;
},
)
);
\register_setting(
'activitypub',
'activitypub_enable_users',
array(
'type' => 'boolean',
'description' => \__( 'Every Author on this Blog (with the publish_posts capability) gets his own ActivityPub enabled Profile.', 'activitypub' ),
'default' => '1',
)
);
\register_setting(
'activitypub',
'activitypub_enable_blog_user',
array(
'type' => 'boolean',
'description' => \__( 'Your Blog becomes an ActivityPub compatible Profile.', 'activitypub' ),
'default' => '0',
)
);
}
public static function add_settings_help_tab() {
require_once ACTIVITYPUB_PLUGIN_DIR . 'includes/help.php';
}
public static function add_followers_list_help_tab() {
// todo
}
public static function add_profile( $user ) {
$description = get_user_meta( $user->ID, 'activitypub_user_description', true );
\load_template(
ACTIVITYPUB_PLUGIN_DIR . 'templates/user-settings.php',
true,
array(
'description' => $description,
)
);
}
public static function save_user_description( $user_id ) {
if ( ! isset( $_REQUEST['_apnonce'] ) ) {
return false;
}
$nonce = sanitize_text_field( wp_unslash( $_REQUEST['_apnonce'] ) );
if (
! wp_verify_nonce( $nonce, 'activitypub-user-description' ) ||
! current_user_can( 'edit_user', $user_id )
) {
return false;
}
$description = ! empty( $_POST['activitypub-user-description'] ) ? sanitize_text_field( wp_unslash( $_POST['activitypub-user-description'] ) ) : false;
if ( $description ) {
update_user_meta( $user_id, 'activitypub_user_description', $description );
}
}
public static function enqueue_scripts( $hook_suffix ) {
if ( false !== strpos( $hook_suffix, 'activitypub' ) ) {
wp_enqueue_style( 'activitypub-admin-styles', plugins_url( 'assets/css/activitypub-admin.css', ACTIVITYPUB_PLUGIN_FILE ), array(), get_plugin_version() );
wp_enqueue_script( 'activitypub-admin-script', plugins_url( 'assets/js/activitypub-admin.js', ACTIVITYPUB_PLUGIN_FILE ), array( 'jquery' ), get_plugin_version(), false );
}
if ( 'index.php' === $hook_suffix ) {
wp_enqueue_style( 'activitypub-admin-styles', plugins_url( 'assets/css/activitypub-admin.css', ACTIVITYPUB_PLUGIN_FILE ), array(), get_plugin_version() );
}
}
/**
* Hook into the edit_comment functionality
*
* * Disable the edit_comment capability for federated comments.
*
* @return void
*/
public static function edit_comment() {
// Disable the edit_comment capability for federated comments.
\add_filter(
'user_has_cap',
function ( $allcaps, $caps, $arg ) {
if ( 'edit_comment' !== $arg[0] ) {
return $allcaps;
}
if ( was_comment_received( $arg[2] ) ) {
return false;
}
return $allcaps;
},
1,
3
);
}
public static function edit_post() {
// Disable the edit_post capability for federated posts.
\add_filter(
'user_has_cap',
function ( $allcaps, $caps, $arg ) {
if ( 'edit_post' !== $arg[0] ) {
return $allcaps;
}
$post = get_post( $arg[2] );
if ( 'ap_extrafield' !== $post->post_type ) {
return $allcaps;
}
if ( (int) get_current_user_id() !== (int) $post->post_author ) {
return false;
}
return $allcaps;
},
1,
3
);
}
/**
* Add ActivityPub specific actions/filters to the post list view
*
* @return void
*/
public static function list_posts() {
// Show only the user's extra fields.
\add_action(
'pre_get_posts',
function ( $query ) {
if ( $query->get( 'post_type' ) === 'ap_extrafield' ) {
$query->set( 'author', get_current_user_id() );
}
}
);
// Remove all views for the extra fields.
$screen_id = get_current_screen()->id;
add_filter(
"views_{$screen_id}",
function ( $views ) {
if ( 'ap_extrafield' === get_post_type() ) {
return array();
}
return $views;
}
);
// Set defaults for new extra fields.
if ( 'edit-ap_extrafield' === $screen_id ) {
Activitypub::default_actor_extra_fields( array(), get_current_user_id() );
}
}
public static function comment_row_actions( $actions, $comment ) {
if ( was_comment_received( $comment ) ) {
unset( $actions['edit'] );
unset( $actions['quickedit'] );
}
return $actions;
}
/**
* Add a column "activitypub"
*
* This column shows if the user has the capability to use ActivityPub.
*
* @param array $columns The columns.
*
* @return array The columns extended by the activitypub.
*/
public static function manage_users_columns( $columns ) {
$columns['activitypub'] = __( 'ActivityPub', 'activitypub' );
return $columns;
}
/**
* Add "comment-type" and "protocol" as column in WP-Admin
*
* @param array $columns the list of column names
*/
public static function manage_comment_columns( $columns ) {
$columns['comment_type'] = esc_attr__( 'Comment-Type', 'activitypub' );
$columns['comment_protocol'] = esc_attr__( 'Protocol', 'activitypub' );
return $columns;
}
/**
* Add "post_content" as column for Extra-Fields in WP-Admin
*
* @param array $columns Tthe list of column names.
* @param string $post_type The post type.
*/
public static function manage_post_columns( $columns, $post_type ) {
if ( 'ap_extrafield' === $post_type ) {
$after_key = 'title';
$index = array_search( $after_key, array_keys( $columns ), true );
$columns = array_slice( $columns, 0, $index + 1 ) + array( 'extra_field_content' => esc_attr__( 'Content', 'activitypub' ) ) + $columns;
}
return $columns;
}
/**
* Add "comment-type" and "protocol" as column in WP-Admin
*
* @param array $column The column to implement
* @param int $comment_id The comment id
*/
public static function manage_comments_custom_column( $column, $comment_id ) {
if ( 'comment_type' === $column && ! defined( 'WEBMENTION_PLUGIN_DIR' ) ) {
echo esc_attr( ucfirst( get_comment_type( $comment_id ) ) );
} elseif ( 'comment_protocol' === $column ) {
$protocol = get_comment_meta( $comment_id, 'protocol', true );
if ( $protocol ) {
echo esc_attr( ucfirst( str_replace( 'activitypub', 'ActivityPub', $protocol ) ) );
} else {
esc_attr_e( 'Local', 'activitypub' );
}
}
}
/**
* Return the results for the activitypub column.
*
* @param string $output Custom column output. Default empty.
* @param string $column_name Column name.
* @param int $user_id ID of the currently-listed user.
*
* @return string The column contents.
*/
public static function manage_users_custom_column( $output, $column_name, $user_id ) {
if ( 'activitypub' !== $column_name ) {
return $output;
}
if ( \user_can( $user_id, 'activitypub' ) ) {
return '<span aria-hidden="true">&#x2713;</span><span class="screen-reader-text">' . esc_html__( 'ActivityPub enabled for this author', 'activitypub' ) . '</span>';
} else {
return '<span aria-hidden="true">&#x2717;</span><span class="screen-reader-text">' . esc_html__( 'ActivityPub disabled for this author', 'activitypub' ) . '</span>';
}
}
/**
* Add a column "extra_field_content" to the post list view
*
* @param string $column_name The column name.
* @param int $post_id The post ID.
*
* @return void
*/
public static function manage_posts_custom_column( $column_name, $post_id ) {
$post = get_post( $post_id );
if ( 'extra_field_content' === $column_name ) {
$post = get_post( $post_id );
if ( 'ap_extrafield' === $post->post_type ) {
echo esc_attr( wp_strip_all_tags( $post->post_content ) );
}
}
}
/**
* Add options to the Bulk dropdown on the users page
*
* @param array $actions The existing bulk options.
*
* @return array The extended bulk options.
*/
public static function user_bulk_options( $actions ) {
$actions['add_activitypub_cap'] = __( 'Enable for ActivityPub', 'activitypub' );
$actions['remove_activitypub_cap'] = __( 'Disable for ActivityPub', 'activitypub' );
return $actions;
}
/**
* Handle bulk activitypub requests
*
* * `add_activitypub_cap` - Add the activitypub capability to the selected users.
* * `remove_activitypub_cap` - Remove the activitypub capability from the selected users.
*
* @param string $sendback The URL to send the user back to.
* @param string $action The requested action.
* @param array $users The selected users.
*
* @return string The URL to send the user back to.
*/
public static function handle_bulk_request( $sendback, $action, $users ) {
if (
'remove_activitypub_cap' !== $action &&
'add_activitypub_cap' !== $action
) {
return $sendback;
}
foreach ( $users as $user_id ) {
$user = new \WP_User( $user_id );
if (
'add_activitypub_cap' === $action &&
user_can( $user_id, 'publish_posts' )
) {
$user->add_cap( 'activitypub' );
} elseif ( 'remove_activitypub_cap' === $action ) {
$user->remove_cap( 'activitypub' );
}
}
return $sendback;
}
/**
* Add ActivityPub infos to the dashboard glance items
*
* @param array $items The existing glance items.
*
* @return array The extended glance items.
*/
public static function dashboard_glance_items( $items ) {
\add_filter( 'number_format_i18n', '\Activitypub\custom_large_numbers', 10, 3 );
if ( ! is_user_disabled( get_current_user_id() ) ) {
$follower_count = sprintf(
// translators: %s: number of followers
_n(
'%s Follower',
'%s Followers',
count_followers( \get_current_user_id() ),
'activitypub'
),
\number_format_i18n( count_followers( \get_current_user_id() ) )
);
$items['activitypub-followers-user'] = sprintf(
'<a class="activitypub-followers" href="%1$s" title="%2$s">%3$s</a>',
\esc_url( \admin_url( 'users.php?page=activitypub-followers-list' ) ),
\esc_attr__( 'Your followers', 'activitypub' ),
\esc_html( $follower_count )
);
}
if ( ! is_user_type_disabled( 'blog' ) && current_user_can( 'manage_options' ) ) {
$follower_count = sprintf(
// translators: %s: number of followers
_n(
'%s Follower (Blog)',
'%s Followers (Blog)',
count_followers( Users::BLOG_USER_ID ),
'activitypub'
),
\number_format_i18n( count_followers( Users::BLOG_USER_ID ) )
);
$items['activitypub-followers-blog'] = sprintf(
'<a class="activitypub-followers" href="%1$s" title="%2$s">%3$s</a>',
\esc_url( \admin_url( 'options-general.php?page=activitypub&tab=followers' ) ),
\esc_attr__( 'The Blog\'s followers', 'activitypub' ),
\esc_html( $follower_count )
);
}
\remove_filter( 'number_format_i18n', '\Activitypub\custom_large_numbers', 10, 3 );
return $items;
}
}

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<?php
namespace Activitypub;
use Activitypub\Collection\Followers;
use Activitypub\Collection\Users as User_Collection;
use function Activitypub\object_to_uri;
use function Activitypub\is_user_type_disabled;
class Blocks {
public static function init() {
// this is already being called on the init hook, so just add it.
self::register_blocks();
\add_action( 'wp_enqueue_scripts', array( self::class, 'add_data' ) );
\add_action( 'enqueue_block_editor_assets', array( self::class, 'add_data' ) );
}
public static function add_data() {
$context = is_admin() ? 'editor' : 'view';
$followers_handle = 'activitypub-followers-' . $context . '-script';
$follow_me_handle = 'activitypub-follow-me-' . $context . '-script';
$data = array(
'namespace' => ACTIVITYPUB_REST_NAMESPACE,
'enabled' => array(
'site' => ! is_user_type_disabled( 'blog' ),
'users' => ! is_user_type_disabled( 'user' ),
),
);
$js = sprintf( 'var _activityPubOptions = %s;', wp_json_encode( $data ) );
\wp_add_inline_script( $followers_handle, $js, 'before' );
\wp_add_inline_script( $follow_me_handle, $js, 'before' );
}
public static function register_blocks() {
\register_block_type_from_metadata(
ACTIVITYPUB_PLUGIN_DIR . '/build/followers',
array(
'render_callback' => array( self::class, 'render_follower_block' ),
)
);
\register_block_type_from_metadata(
ACTIVITYPUB_PLUGIN_DIR . '/build/follow-me',
array(
'render_callback' => array( self::class, 'render_follow_me_block' ),
)
);
}
private static function get_user_id( $user_string ) {
if ( is_numeric( $user_string ) ) {
return absint( $user_string );
}
// any other non-numeric falls back to 0, including the `site` string used in the UI
return 0;
}
/**
* Filter an array by a list of keys.
* @param array $array The array to filter.
* @param array $keys The keys to keep.
* @return array The filtered array.
*/
protected static function filter_array_by_keys( $array, $keys ) {
return array_intersect_key( $array, array_flip( $keys ) );
}
/**
* Render the follow me block.
* @param array $attrs The block attributes.
* @return string The HTML to render.
*/
public static function render_follow_me_block( $attrs ) {
$user_id = self::get_user_id( $attrs['selectedUser'] );
$user = User_Collection::get_by_id( $user_id );
if ( ! is_wp_error( $user ) ) {
$attrs['profileData'] = self::filter_array_by_keys(
$user->to_array(),
array( 'icon', 'name', 'webfinger' )
);
}
// add `@` prefix if it's missing
if ( '@' !== substr( $attrs['profileData']['webfinger'], 0, 1 ) ) {
$attrs['profileData']['webfinger'] = '@' . $attrs['profileData']['webfinger'];
}
$wrapper_attributes = get_block_wrapper_attributes(
array(
'aria-label' => __( 'Follow me on the Fediverse', 'activitypub' ),
'class' => 'activitypub-follow-me-block-wrapper',
'data-attrs' => wp_json_encode( $attrs ),
)
);
// todo: render more than an empty div?
return '<div ' . $wrapper_attributes . '></div>';
}
public static function render_follower_block( $attrs ) {
$followee_user_id = self::get_user_id( $attrs['selectedUser'] );
$per_page = absint( $attrs['per_page'] );
$follower_data = Followers::get_followers_with_count( $followee_user_id, $per_page );
$attrs['followerData']['total'] = $follower_data['total'];
$attrs['followerData']['followers'] = array_map(
function ( $follower ) {
return self::filter_array_by_keys(
$follower->to_array(),
array( 'icon', 'name', 'preferredUsername', 'url' )
);
},
$follower_data['followers']
);
$wrapper_attributes = get_block_wrapper_attributes(
array(
'aria-label' => __( 'Fediverse Followers', 'activitypub' ),
'class' => 'activitypub-follower-block',
'data-attrs' => wp_json_encode( $attrs ),
)
);
$html = '<div ' . $wrapper_attributes . '>';
if ( $attrs['title'] ) {
$html .= '<h3>' . esc_html( $attrs['title'] ) . '</h3>';
}
$html .= '<ul>';
foreach ( $follower_data['followers'] as $follower ) {
$html .= '<li>' . self::render_follower( $follower ) . '</li>';
}
// We are only pagination on the JS side. Could be revisited but we gotta ship!
$html .= '</ul></div>';
return $html;
}
public static function render_follower( $follower ) {
$external_svg = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" class="components-external-link__icon css-rvs7bx esh4a730" aria-hidden="true" focusable="false"><path d="M18.2 17c0 .7-.6 1.2-1.2 1.2H7c-.7 0-1.2-.6-1.2-1.2V7c0-.7.6-1.2 1.2-1.2h3.2V4.2H7C5.5 4.2 4.2 5.5 4.2 7v10c0 1.5 1.2 2.8 2.8 2.8h10c1.5 0 2.8-1.2 2.8-2.8v-3.6h-1.5V17zM14.9 3v1.5h3.7l-6.4 6.4 1.1 1.1 6.4-6.4v3.7h1.5V3h-6.3z"></path></svg>';
$template =
'<a href="%s" title="%s" class="components-external-link activitypub-link" target="_blank" rel="external noreferrer noopener">
<img width="40" height="40" src="%s" class="avatar activitypub-avatar" />
<span class="activitypub-actor">
<strong class="activitypub-name">%s</strong>
<span class="sep">/</span>
<span class="activitypub-handle">@%s</span>
</span>
%s
</a>';
$data = $follower->to_array();
return sprintf(
$template,
esc_url( object_to_uri( $data['url'] ) ),
esc_attr( $data['name'] ),
esc_attr( $data['icon']['url'] ),
esc_html( $data['name'] ),
esc_html( $data['preferredUsername'] ),
$external_svg
);
}
}

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<?php
namespace Activitypub;
use Activitypub\Collection\Users;
use WP_Comment_Query;
use function Activitypub\is_user_disabled;
use function Activitypub\is_single_user;
/**
* ActivityPub Comment Class
*
* This class is a helper/utils class that provides a collection of static
* methods that are used to handle comments.
*/
class Comment {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
\add_filter( 'comment_reply_link', array( self::class, 'comment_reply_link' ), 10, 3 );
\add_filter( 'comment_class', array( self::class, 'comment_class' ), 10, 3 );
\add_filter( 'get_comment_link', array( self::class, 'remote_comment_link' ), 11, 3 );
\add_action( 'wp_enqueue_scripts', array( self::class, 'enqueue_scripts' ) );
}
/**
* Filter the comment reply link.
*
* We don't want to show the comment reply link for federated comments
* if the user is disabled for federation.
*
* @param string $link The HTML markup for the comment reply link.
* @param array $args An array of arguments overriding the defaults.
* @param WP_Comment $comment The object of the comment being replied.
*
* @return string The filtered HTML markup for the comment reply link.
*/
public static function comment_reply_link( $link, $args, $comment ) {
if ( self::are_comments_allowed( $comment ) ) {
$user_id = get_current_user_id();
if ( $user_id && self::was_received( $comment ) && \user_can( $user_id, 'activitypub' ) ) {
return self::create_fediverse_reply_link( $link, $args );
}
return $link;
}
$attrs = array(
'selectedComment' => self::generate_id( $comment ),
'commentId' => $comment->comment_ID,
);
$div = sprintf(
'<div class="activitypub-remote-reply" data-attrs="%s"></div>',
esc_attr( wp_json_encode( $attrs ) )
);
return apply_filters( 'activitypub_comment_reply_link', $div );
}
/**
* Create a link to reply to a federated comment.
* This function adds a title attribute to the reply link to inform the user
* that the comment was received from the fediverse and the reply will be sent
* to the original author.
*
* @param string $link The HTML markup for the comment reply link.
* @param array $args The args provided by the `comment_reply_link` filter.
*
* @return string The modified HTML markup for the comment reply link.
*/
private static function create_fediverse_reply_link( $link, $args ) {
$str_to_replace = sprintf( '>%s<', $args['reply_text'] );
$replace_with = sprintf(
' title="%s">%s<',
esc_attr__( 'This comment was received from the fediverse and your reply will be sent to the original author', 'activitypub' ),
esc_html__( 'Reply with federation', 'activitypub' )
);
return str_replace( $str_to_replace, $replace_with, $link );
}
/**
* Check if it is allowed to comment to a comment.
*
* Checks if the comment is local only or if the user can comment federated comments.
*
* @param mixed $comment Comment object or ID.
*
* @return boolean True if the user can comment, false otherwise.
*/
public static function are_comments_allowed( $comment ) {
$comment = \get_comment( $comment );
if ( ! self::was_received( $comment ) ) {
return true;
}
$current_user = get_current_user_id();
if ( ! $current_user ) {
return false;
}
if ( is_single_user() && \user_can( $current_user, 'publish_posts' ) ) {
// On a single user site, comments by users with the `publish_posts` capability will be federated as the blog user
$current_user = Users::BLOG_USER_ID;
}
$is_user_disabled = is_user_disabled( $current_user );
if ( $is_user_disabled ) {
return false;
}
return true;
}
/**
* Check if a comment is federated.
*
* We consider a comment federated if comment was received via ActivityPub.
*
* Use this function to check if it is comment that was received via ActivityPub.
*
* @param mixed $comment Comment object or ID.
*
* @return boolean True if the comment is federated, false otherwise.
*/
public static function was_received( $comment ) {
$comment = \get_comment( $comment );
if ( ! $comment ) {
return false;
}
$protocol = \get_comment_meta( $comment->comment_ID, 'protocol', true );
if ( 'activitypub' === $protocol ) {
return true;
}
return false;
}
/**
* Check if a comment was federated.
*
* This function checks if a comment was federated via ActivityPub.
*
* @param mixed $comment Comment object or ID.
*
* @return boolean True if the comment was federated, false otherwise.
*/
public static function was_sent( $comment ) {
$comment = \get_comment( $comment );
if ( ! $comment ) {
return false;
}
$status = \get_comment_meta( $comment->comment_ID, 'activitypub_status', true );
if ( $status ) {
return true;
}
return false;
}
/**
* Check if a comment is local only.
*
* This function checks if a comment is local only and was not sent or received via ActivityPub.
*
* @param mixed $comment Comment object or ID.
*
* @return boolean True if the comment is local only, false otherwise.
*/
public static function is_local( $comment ) {
if ( self::was_sent( $comment ) || self::was_received( $comment ) ) {
return false;
}
return true;
}
/**
* Check if a comment should be federated.
*
* We consider a comment should be federated if it is authored by a user that is
* not disabled for federation and if it is a reply directly to the post or to a
* federated comment.
*
* Use this function to check if a comment should be federated.
*
* @param mixed $comment Comment object or ID.
*
* @return boolean True if the comment should be federated, false otherwise.
*/
public static function should_be_federated( $comment ) {
// we should not federate federated comments
if ( self::was_received( $comment ) ) {
return false;
}
$comment = \get_comment( $comment );
$user_id = $comment->user_id;
// comments without user can't be federated
if ( ! $user_id ) {
return false;
}
if ( is_single_user() && \user_can( $user_id, 'publish_posts' ) ) {
// On a single user site, comments by users with the `publish_posts` capability will be federated as the blog user
$user_id = Users::BLOG_USER_ID;
}
$is_user_disabled = is_user_disabled( $user_id );
// user is disabled for federation
if ( $is_user_disabled ) {
return false;
}
// it is a comment to the post and can be federated
if ( empty( $comment->comment_parent ) ) {
return true;
}
// check if parent comment is federated
$parent_comment = \get_comment( $comment->comment_parent );
return ! self::is_local( $parent_comment );
}
/**
* Examine a comment ID and look up an existing comment it represents.
*
* @param string $id ActivityPub object ID (usually a URL) to check.
*
* @return \WP_Comment|false Comment object, or false on failure.
*/
public static function object_id_to_comment( $id ) {
$comment_query = new WP_Comment_Query(
array(
'meta_key' => 'source_id', // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_key
'meta_value' => $id, // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_value
)
);
if ( ! $comment_query->comments ) {
return false;
}
if ( count( $comment_query->comments ) > 1 ) {
return false;
}
return $comment_query->comments[0];
}
/**
* Verify if URL is a local comment, or if it is a previously received
* remote comment (For threading comments locally)
*
* @param string $url The URL to check.
*
* @return int comment_ID or null if not found
*/
public static function url_to_commentid( $url ) {
if ( ! $url || ! filter_var( $url, \FILTER_VALIDATE_URL ) ) {
return null;
}
// check for local comment
if ( \wp_parse_url( \home_url(), \PHP_URL_HOST ) === \wp_parse_url( $url, \PHP_URL_HOST ) ) {
$query = \wp_parse_url( $url, \PHP_URL_QUERY );
if ( $query ) {
parse_str( $query, $params );
if ( ! empty( $params['c'] ) ) {
$comment = \get_comment( $params['c'] );
if ( $comment ) {
return $comment->comment_ID;
}
}
}
}
$args = array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
'meta_query' => array(
'relation' => 'OR',
array(
'key' => 'source_url',
'value' => $url,
),
array(
'key' => 'source_id',
'value' => $url,
),
),
);
$query = new WP_Comment_Query();
$comments = $query->query( $args );
if ( $comments && is_array( $comments ) ) {
return $comments[0]->comment_ID;
}
return null;
}
/**
* Filters the CSS classes to add an ActivityPub class.
*
* @param string[] $classes An array of comment classes.
* @param string[] $css_class An array of additional classes added to the list.
* @param string $comment_id The comment ID as a numeric string.
*
* @return string[] An array of classes.
*/
public static function comment_class( $classes, $css_class, $comment_id ) {
// check if ActivityPub comment
if ( 'activitypub' === get_comment_meta( $comment_id, 'protocol', true ) ) {
$classes[] = 'activitypub-comment';
}
return $classes;
}
/**
* Link remote comments to source url.
*
* @param string $comment_link
* @param object|WP_Comment $comment
*
* @return string $url
*/
public static function remote_comment_link( $comment_link, $comment ) {
if ( ! $comment || is_admin() ) {
return $comment_link;
}
$comment_meta = \get_comment_meta( $comment->comment_ID );
if ( ! empty( $comment_meta['source_url'][0] ) ) {
return $comment_meta['source_url'][0];
} elseif ( ! empty( $comment_meta['source_id'][0] ) ) {
return $comment_meta['source_id'][0];
}
return $comment_link;
}
/**
* Generates an ActivityPub URI for a comment
*
* @param WP_Comment|int $comment A comment object or comment ID
*
* @return string ActivityPub URI for comment
*/
public static function generate_id( $comment ) {
$comment = \get_comment( $comment );
$comment_meta = \get_comment_meta( $comment->comment_ID );
// show external comment ID if it exists
if ( ! empty( $comment_meta['source_id'][0] ) ) {
return $comment_meta['source_id'][0];
} elseif ( ! empty( $comment_meta['source_url'][0] ) ) {
return $comment_meta['source_url'][0];
}
// generate URI based on comment ID
return \add_query_arg( 'c', $comment->comment_ID, \trailingslashit( \home_url() ) );
}
/**
* Check if a post has remote comments
*
* @param int $post_id The post ID.
*
* @return bool True if the post has remote comments, false otherwise.
*/
private static function post_has_remote_comments( $post_id ) {
$comments = \get_comments(
array(
'post_id' => $post_id,
'meta_query' => array(
'relation' => 'AND',
array(
'key' => 'protocol',
'value' => 'activitypub',
'compare' => '=',
),
array(
'key' => 'source_id',
'compare' => 'EXISTS',
),
),
)
);
return ! empty( $comments );
}
/**
* Enqueue scripts for remote comments
*/
public static function enqueue_scripts() {
if ( ! \is_singular() || \is_user_logged_in() ) {
// only on single pages, only for logged out users
return;
}
if ( ! \post_type_supports( \get_post_type(), 'activitypub' ) ) {
// post type does not support ActivityPub
return;
}
if ( ! \comments_open() || ! \get_comments_number() ) {
// no comments, no need to load the script
return;
}
if ( ! self::post_has_remote_comments( \get_the_ID() ) ) {
// no remote comments, no need to load the script
return;
}
$handle = 'activitypub-remote-reply';
$data = array(
'namespace' => ACTIVITYPUB_REST_NAMESPACE,
);
$js = sprintf( 'var _activityPubOptions = %s;', wp_json_encode( $data ) );
$asset_file = ACTIVITYPUB_PLUGIN_DIR . 'build/remote-reply/index.asset.php';
if ( \file_exists( $asset_file ) ) {
$assets = require_once $asset_file;
\wp_enqueue_script(
$handle,
\plugins_url( 'build/remote-reply/index.js', __DIR__ ),
$assets['dependencies'],
$assets['version'],
true
);
\wp_add_inline_script( $handle, $js, 'before' );
\wp_enqueue_style(
$handle,
\plugins_url( 'build/remote-reply/style-index.css', __DIR__ ),
[ 'wp-components' ],
$assets['version']
);
}
}
}

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<?php
namespace Activitypub;
use WP_DEBUG;
use WP_DEBUG_LOG;
/**
* ActivityPub Debug Class
*
* @author Matthias Pfefferle
*/
class Debug {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
if ( WP_DEBUG_LOG ) {
\add_action( 'activitypub_safe_remote_post_response', array( self::class, 'log_remote_post_responses' ), 10, 4 );
}
}
// phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundAfterLastUsed, VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
public static function log_remote_post_responses( $response, $url, $body, $user_id ) {
// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log, WordPress.PHP.DevelopmentFunctions.error_log_print_r
\error_log( "Request to: {$url} with response: " . \print_r( $response, true ) );
}
public static function write_log( $log ) {
if ( \is_array( $log ) || \is_object( $log ) ) {
// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log, WordPress.PHP.DevelopmentFunctions.error_log_print_r
\error_log( \print_r( $log, true ) );
} else {
// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
\error_log( $log );
}
}
}

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<?php
namespace Activitypub;
use Activitypub\Handler\Announce;
use Activitypub\Handler\Create;
use Activitypub\Handler\Delete;
use Activitypub\Handler\Follow;
use Activitypub\Handler\Undo;
use Activitypub\Handler\Update;
/**
* Handler class.
*/
class Handler {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
self::register_handlers();
}
/**
* Register handlers.
*/
public static function register_handlers() {
Announce::init();
Create::init();
Delete::init();
Follow::init();
Undo::init();
Update::init();
do_action( 'activitypub_register_handlers' );
}
}

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<?php
namespace Activitypub;
/**
* ActivityPub Hashtag Class
*
* @author Matthias Pfefferle
*/
class Hashtag {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
if ( '1' === \get_option( 'activitypub_use_hashtags', '1' ) ) {
\add_action( 'wp_insert_post', array( self::class, 'insert_post' ), 10, 2 );
\add_filter( 'the_content', array( self::class, 'the_content' ), 10, 1 );
}
}
/**
* Filter to save #tags as real WordPress tags
*
* @param int $id the rev-id
* @param WP_Post $post the post
*
* @return
*/
public static function insert_post( $id, $post ) {
if ( \preg_match_all( '/' . ACTIVITYPUB_HASHTAGS_REGEXP . '/i', $post->post_content, $match ) ) {
$tags = \implode( ', ', $match[1] );
\wp_add_post_tags( $post->post_parent, $tags );
}
return $id;
}
/**
* Filter to replace the #tags in the content with links
*
* @param string $the_content the post-content
*
* @return string the filtered post-content
*/
public static function the_content( $the_content ) {
// small protection against execution timeouts: limit to 1 MB
if ( mb_strlen( $the_content ) > MB_IN_BYTES ) {
return $the_content;
}
$tag_stack = array();
$protected_tags = array(
'pre',
'code',
'textarea',
'style',
'a',
);
$content_with_links = '';
$in_protected_tag = false;
foreach ( wp_html_split( $the_content ) as $chunk ) {
if ( preg_match( '#^<!--[\s\S]*-->$#i', $chunk, $m ) ) {
$content_with_links .= $chunk;
continue;
}
if ( preg_match( '#^<(/)?([a-z-]+)\b[^>]*>$#i', $chunk, $m ) ) {
$tag = strtolower( $m[2] );
if ( '/' === $m[1] ) {
// Closing tag.
$i = array_search( $tag, $tag_stack, true );
// We can only remove the tag from the stack if it is in the stack.
if ( false !== $i ) {
$tag_stack = array_slice( $tag_stack, 0, $i );
}
} else {
// Opening tag, add it to the stack.
$tag_stack[] = $tag;
}
// If we're in a protected tag, the tag_stack contains at least one protected tag string.
// The protected tag state can only change when we encounter a start or end tag.
$in_protected_tag = array_intersect( $tag_stack, $protected_tags );
// Never inspect tags.
$content_with_links .= $chunk;
continue;
}
if ( $in_protected_tag ) {
// Don't inspect a chunk inside an inspected tag.
$content_with_links .= $chunk;
continue;
}
// Only reachable when there is no protected tag in the stack.
$content_with_links .= \preg_replace_callback( '/' . ACTIVITYPUB_HASHTAGS_REGEXP . '/i', array( '\Activitypub\Hashtag', 'replace_with_links' ), $chunk );
}
return $content_with_links;
}
/**
* A callback for preg_replace to build the term links
*
* @param array $result the preg_match results
* @return string the final string
*/
public static function replace_with_links( $result ) {
$tag = $result[1];
$tag_object = \get_term_by( 'name', $tag, 'post_tag' );
if ( $tag_object ) {
$link = \get_term_link( $tag_object, 'post_tag' );
return \sprintf( '<a rel="tag" class="hashtag u-tag u-category" href="%s">#%s</a>', $link, $tag );
}
return '#' . $tag;
}
}

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<?php
namespace Activitypub;
use WP_Error;
use Activitypub\Webfinger;
use Activitypub\Collection\Users;
use function Activitypub\get_plugin_version;
use function Activitypub\is_user_type_disabled;
use function Activitypub\get_webfinger_resource;
/**
* ActivityPub Health_Check Class
*
* @author Matthias Pfefferle
*/
class Health_Check {
/**
* Initialize health checks
*
* @return void
*/
public static function init() {
\add_filter( 'site_status_tests', array( self::class, 'add_tests' ) );
\add_filter( 'debug_information', array( self::class, 'debug_information' ) );
}
public static function add_tests( $tests ) {
if ( ! is_user_disabled( get_current_user_id() ) ) {
$tests['direct']['activitypub_test_author_url'] = array(
'label' => \__( 'Author URL test', 'activitypub' ),
'test' => array( self::class, 'test_author_url' ),
);
}
$tests['direct']['activitypub_test_webfinger'] = array(
'label' => __( 'WebFinger Test', 'activitypub' ),
'test' => array( self::class, 'test_webfinger' ),
);
return $tests;
}
/**
* Author URL tests
*
* @return array
*/
public static function test_author_url() {
$result = array(
'label' => \__( 'Author URL accessible', 'activitypub' ),
'status' => 'good',
'badge' => array(
'label' => \__( 'ActivityPub', 'activitypub' ),
'color' => 'green',
),
'description' => \sprintf(
'<p>%s</p>',
\__( 'Your author URL is accessible and supports the required "Accept" header.', 'activitypub' )
),
'actions' => '',
'test' => 'test_author_url',
);
$check = self::is_author_url_accessible();
if ( true === $check ) {
return $result;
}
$result['status'] = 'critical';
$result['label'] = \__( 'Author URL is not accessible', 'activitypub' );
$result['badge']['color'] = 'red';
$result['description'] = \sprintf(
'<p>%s</p>',
$check->get_error_message()
);
return $result;
}
/**
* System Cron tests
*
* @return array
*/
public static function test_system_cron() {
$result = array(
'label' => \__( 'System Task Scheduler configured', 'activitypub' ),
'status' => 'good',
'badge' => array(
'label' => \__( 'ActivityPub', 'activitypub' ),
'color' => 'green',
),
'description' => \sprintf(
'<p>%s</p>',
\esc_html__( 'You seem to use the System Task Scheduler to process WP_Cron tasks.', 'activitypub' )
),
'actions' => '',
'test' => 'test_system_cron',
);
if ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) {
return $result;
}
$result['status'] = 'recommended';
$result['label'] = \__( 'System Task Scheduler not configured', 'activitypub' );
$result['badge']['color'] = 'orange';
$result['description'] = \sprintf(
'<p>%s</p>',
\__( 'Enhance your WordPress siteโ€™s performance and mitigate potential heavy loads caused by plugins like ActivityPub by setting up a system cron job to run WP Cron. This ensures scheduled tasks are executed consistently and reduces the reliance on website traffic for trigger events.', 'activitypub' )
);
$result['actions'] .= sprintf(
'<p><a href="%s" target="_blank" rel="noopener">%s<span class="screen-reader-text"> %s</span><span aria-hidden="true" class="dashicons dashicons-external"></span></a></p>',
__( 'https://developer.wordpress.org/plugins/cron/hooking-wp-cron-into-the-system-task-scheduler/', 'activitypub' ),
__( 'Learn how to hook the WP-Cron into the System Task Scheduler.', 'activitypub' ),
/* translators: Hidden accessibility text. */
__( '(opens in a new tab)', 'activitypub' )
);
return $result;
}
/**
* WebFinger tests
*
* @return array
*/
public static function test_webfinger() {
$result = array(
'label' => \__( 'WebFinger endpoint', 'activitypub' ),
'status' => 'good',
'badge' => array(
'label' => \__( 'ActivityPub', 'activitypub' ),
'color' => 'green',
),
'description' => \sprintf(
'<p>%s</p>',
\__( 'Your WebFinger endpoint is accessible and returns the correct information.', 'activitypub' )
),
'actions' => '',
'test' => 'test_webfinger',
);
$check = self::is_webfinger_endpoint_accessible();
if ( true === $check ) {
return $result;
}
$result['status'] = 'critical';
$result['label'] = \__( 'WebFinger endpoint is not accessible', 'activitypub' );
$result['badge']['color'] = 'red';
$result['description'] = \sprintf(
'<p>%s</p>',
$check->get_error_message()
);
return $result;
}
/**
* Check if `author_posts_url` is accessible and that request returns correct JSON
*
* @return boolean|WP_Error
*/
public static function is_author_url_accessible() {
$user = \wp_get_current_user();
$author_url = \get_author_posts_url( $user->ID );
$reference_author_url = self::get_author_posts_url( $user->ID, $user->user_nicename );
// check for "author" in URL
if ( $author_url !== $reference_author_url ) {
return new WP_Error(
'author_url_not_accessible',
\sprintf(
// translators: %s: Author URL
\__(
'Your author URL <code>%s</code> was replaced, this is often done by plugins.',
'activitypub'
),
$author_url
)
);
}
// try to access author URL
$response = \wp_remote_get(
$author_url,
array(
'headers' => array( 'Accept' => 'application/activity+json' ),
'redirection' => 0,
)
);
if ( \is_wp_error( $response ) ) {
return new WP_Error(
'author_url_not_accessible',
\sprintf(
// translators: %s: Author URL
\__(
'Your author URL <code>%s</code> is not accessible. Please check your WordPress setup or permalink structure. If the setup seems fine, maybe check if a plugin might restrict the access.',
'activitypub'
),
$author_url
)
);
}
$response_code = \wp_remote_retrieve_response_code( $response );
// check for redirects
if ( \in_array( $response_code, array( 301, 302, 307, 308 ), true ) ) {
return new WP_Error(
'author_url_not_accessible',
\sprintf(
// translators: %s: Author URL
\__(
'Your author URL <code>%s</code> is redirecting to another page, this is often done by SEO plugins like "Yoast SEO".',
'activitypub'
),
$author_url
)
);
}
// check if response is JSON
$body = \wp_remote_retrieve_body( $response );
if ( ! \is_string( $body ) || ! \is_array( \json_decode( $body, true ) ) ) {
return new WP_Error(
'author_url_not_accessible',
\sprintf(
// translators: %s: Author URL
\__(
'Your author URL <code>%s</code> does not return valid JSON for <code>application/activity+json</code>. Please check if your hosting supports alternate <code>Accept</code> headers.',
'activitypub'
),
$author_url
)
);
}
return true;
}
/**
* Check if WebFinger endpoint is accessible and profile request returns correct JSON
*
* @return boolean|WP_Error
*/
public static function is_webfinger_endpoint_accessible() {
$user = Users::get_by_id( Users::APPLICATION_USER_ID );
$resource = $user->get_webfinger();
$url = Webfinger::resolve( $resource );
if ( \is_wp_error( $url ) ) {
$allowed = array( 'code' => array() );
$not_accessible = wp_kses(
// translators: %s: Author URL
\__(
'Your WebFinger endpoint <code>%s</code> is not accessible. Please check your WordPress setup or permalink structure.',
'activitypub'
),
$allowed
);
$invalid_response = wp_kses(
// translators: %s: Author URL
\__(
'Your WebFinger endpoint <code>%s</code> does not return valid JSON for <code>application/jrd+json</code>.',
'activitypub'
),
$allowed
);
$health_messages = array(
'webfinger_url_not_accessible' => \sprintf(
$not_accessible,
$url->get_error_data()
),
'webfinger_url_invalid_response' => \sprintf(
// translators: %s: Author URL
$invalid_response,
$url->get_error_data()
),
);
$message = null;
if ( isset( $health_messages[ $url->get_error_code() ] ) ) {
$message = $health_messages[ $url->get_error_code() ];
}
return new WP_Error(
$url->get_error_code(),
$message,
$url->get_error_data()
);
}
return true;
}
/**
* Retrieve the URL to the author page for the user with the ID provided.
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param int $author_id Author ID.
* @param string $author_nicename Optional. The author's nicename (slug). Default empty.
*
* @return string The URL to the author's page.
*/
public static function get_author_posts_url( $author_id, $author_nicename = '' ) {
global $wp_rewrite;
$auth_id = (int) $author_id;
$link = $wp_rewrite->get_author_permastruct();
if ( empty( $link ) ) {
$file = home_url( '/' );
$link = $file . '?author=' . $auth_id;
} else {
if ( '' === $author_nicename ) {
$user = get_userdata( $author_id );
if ( ! empty( $user->user_nicename ) ) {
$author_nicename = $user->user_nicename;
}
}
$link = str_replace( '%author%', $author_nicename, $link );
$link = home_url( user_trailingslashit( $link ) );
}
return $link;
}
/**
* Static function for generating site debug data when required.
*
* @param array $info The debug information to be added to the core information page.
* @return array The filtered information
*/
public static function debug_information( $info ) {
$info['activitypub'] = array(
'label' => __( 'ActivityPub', 'activitypub' ),
'fields' => array(
'webfinger' => array(
'label' => __( 'WebFinger Resource', 'activitypub' ),
'value' => Webfinger::get_user_resource( wp_get_current_user()->ID ),
'private' => true,
),
'author_url' => array(
'label' => __( 'Author URL', 'activitypub' ),
'value' => get_author_posts_url( wp_get_current_user()->ID ),
'private' => true,
),
'plugin_version' => array(
'label' => __( 'Plugin Version', 'activitypub' ),
'value' => get_plugin_version(),
'private' => true,
),
),
);
return $info;
}
}

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<?php
namespace Activitypub;
use WP_Error;
use Activitypub\Collection\Users;
use function Activitypub\get_masked_wp_version;
/**
* ActivityPub HTTP Class
*
* @author Matthias Pfefferle
*/
class Http {
/**
* Send a POST Request with the needed HTTP Headers
*
* @param string $url The URL endpoint
* @param string $body The Post Body
* @param int $user_id The WordPress User-ID
*
* @return array|WP_Error The POST Response or an WP_ERROR
*/
public static function post( $url, $body, $user_id ) {
\do_action( 'activitypub_pre_http_post', $url, $body, $user_id );
$date = \gmdate( 'D, d M Y H:i:s T' );
$digest = Signature::generate_digest( $body );
$signature = Signature::generate_signature( $user_id, 'post', $url, $date, $digest );
$wp_version = get_masked_wp_version();
/**
* Filter the HTTP headers user agent.
*
* @param string $user_agent The user agent string.
*/
$user_agent = \apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . \get_bloginfo( 'url' ) );
$args = array(
'timeout' => 100,
'limit_response_size' => 1048576,
'redirection' => 3,
'user-agent' => "$user_agent; ActivityPub",
'headers' => array(
'Accept' => 'application/activity+json',
'Content-Type' => 'application/activity+json',
'Digest' => $digest,
'Signature' => $signature,
'Date' => $date,
),
'body' => $body,
);
$response = \wp_safe_remote_post( $url, $args );
$code = \wp_remote_retrieve_response_code( $response );
if ( $code >= 400 ) {
$response = new WP_Error( $code, __( 'Failed HTTP Request', 'activitypub' ), array( 'status' => $code ) );
}
\do_action( 'activitypub_safe_remote_post_response', $response, $url, $body, $user_id );
return $response;
}
/**
* Send a GET Request with the needed HTTP Headers
*
* @param string $url The URL endpoint
* @param bool|int $cached If the result should be cached, or its duration. Default: 1hr.
*
* @return array|WP_Error The GET Response or an WP_ERROR
*/
public static function get( $url, $cached = false ) {
\do_action( 'activitypub_pre_http_get', $url );
if ( $cached ) {
$transient_key = self::generate_cache_key( $url );
$response = \get_transient( $transient_key );
if ( $response ) {
\do_action( 'activitypub_safe_remote_get_response', $response, $url );
return $response;
}
}
$date = \gmdate( 'D, d M Y H:i:s T' );
$signature = Signature::generate_signature( Users::APPLICATION_USER_ID, 'get', $url, $date );
$wp_version = get_masked_wp_version();
/**
* Filter the HTTP headers user agent.
*
* @param string $user_agent The user agent string.
*/
$user_agent = \apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . \get_bloginfo( 'url' ) );
$args = array(
'timeout' => apply_filters( 'activitypub_remote_get_timeout', 100 ),
'limit_response_size' => 1048576,
'redirection' => 3,
'user-agent' => "$user_agent; ActivityPub",
'headers' => array(
'Accept' => 'application/activity+json',
'Content-Type' => 'application/activity+json',
'Signature' => $signature,
'Date' => $date,
),
);
$response = \wp_safe_remote_get( $url, $args );
$code = \wp_remote_retrieve_response_code( $response );
if ( $code >= 400 ) {
$response = new WP_Error( $code, __( 'Failed HTTP Request', 'activitypub' ), array( 'status' => $code ) );
}
\do_action( 'activitypub_safe_remote_get_response', $response, $url );
if ( $cached ) {
$cache_duration = $cached;
if ( ! is_int( $cache_duration ) ) {
$cache_duration = HOUR_IN_SECONDS;
}
\set_transient( $transient_key, $response, $cache_duration );
}
return $response;
}
/**
* Check for URL for Tombstone.
*
* @param string $url The URL to check.
*
* @return bool True if the URL is a tombstone.
*/
public static function is_tombstone( $url ) {
\do_action( 'activitypub_pre_http_is_tombstone', $url );
$response = \wp_safe_remote_get( $url );
$code = \wp_remote_retrieve_response_code( $response );
if ( in_array( (int) $code, array( 404, 410 ), true ) ) {
return true;
}
return false;
}
public static function generate_cache_key( $url ) {
return 'activitypub_http_' . \md5( $url );
}
/**
* Requests the Data from the Object-URL or Object-Array
*
* @param array|string $url_or_object The Object or the Object URL.
* @param bool $cached If the result should be cached.
*
* @return array|WP_Error The Object data as array or WP_Error on failure.
*/
public static function get_remote_object( $url_or_object, $cached = true ) {
if ( is_array( $url_or_object ) ) {
if ( array_key_exists( 'id', $url_or_object ) ) {
$url = $url_or_object['id'];
} elseif ( array_key_exists( 'url', $url_or_object ) ) {
$url = $url_or_object['url'];
} else {
return new WP_Error(
'activitypub_no_valid_actor_identifier',
\__( 'The "actor" identifier is not valid', 'activitypub' ),
array(
'status' => 404,
'object' => $url_or_object,
)
);
}
} else {
$url = $url_or_object;
}
if ( preg_match( '/^@?' . ACTIVITYPUB_USERNAME_REGEXP . '$/i', $url ) ) {
$url = Webfinger::resolve( $url );
}
if ( ! $url ) {
return new WP_Error(
'activitypub_no_valid_actor_identifier',
\__( 'The "actor" identifier is not valid', 'activitypub' ),
array(
'status' => 404,
'object' => $url,
)
);
}
if ( is_wp_error( $url ) ) {
return $url;
}
$transient_key = self::generate_cache_key( $url );
// only check the cache if needed.
if ( $cached ) {
$data = \get_transient( $transient_key );
if ( $data ) {
return $data;
}
}
if ( ! \wp_http_validate_url( $url ) ) {
return new WP_Error(
'activitypub_no_valid_object_url',
\__( 'The "object" is/has no valid URL', 'activitypub' ),
array(
'status' => 400,
'object' => $url,
)
);
}
$response = self::get( $url );
if ( \is_wp_error( $response ) ) {
return $response;
}
$data = \wp_remote_retrieve_body( $response );
$data = \json_decode( $data, true );
if ( ! $data ) {
return new WP_Error(
'activitypub_invalid_json',
\__( 'No valid JSON data', 'activitypub' ),
array(
'status' => 400,
'object' => $url,
)
);
}
\set_transient( $transient_key, $data, WEEK_IN_SECONDS );
return $data;
}
}

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<?php
namespace Activitypub;
use WP_Error;
use Activitypub\Webfinger;
use function Activitypub\object_to_uri;
/**
* ActivityPub Mention Class
*
* @author Alex Kirk
*/
class Mention {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
\add_filter( 'the_content', array( self::class, 'the_content' ), 99, 1 );
\add_filter( 'comment_text', array( self::class, 'the_content' ), 10, 1 );
\add_filter( 'activitypub_extract_mentions', array( self::class, 'extract_mentions' ), 99, 2 );
}
/**
* Filter to replace the mentions in the content with links
*
* @param string $the_content the post-content
*
* @return string the filtered post-content
*/
public static function the_content( $the_content ) {
// small protection against execution timeouts: limit to 1 MB
if ( mb_strlen( $the_content ) > MB_IN_BYTES ) {
return $the_content;
}
$tag_stack = array();
$protected_tags = array(
'pre',
'code',
'textarea',
'style',
'a',
);
$content_with_links = '';
$in_protected_tag = false;
foreach ( wp_html_split( $the_content ) as $chunk ) {
if ( preg_match( '#^<!--[\s\S]*-->$#i', $chunk, $m ) ) {
$content_with_links .= $chunk;
continue;
}
if ( preg_match( '#^<(/)?([a-z-]+)\b[^>]*>$#i', $chunk, $m ) ) {
$tag = strtolower( $m[2] );
if ( '/' === $m[1] ) {
// Closing tag.
$i = array_search( $tag, $tag_stack );
// We can only remove the tag from the stack if it is in the stack.
if ( false !== $i ) {
$tag_stack = array_slice( $tag_stack, 0, $i );
}
} else {
// Opening tag, add it to the stack.
$tag_stack[] = $tag;
}
// If we're in a protected tag, the tag_stack contains at least one protected tag string.
// The protected tag state can only change when we encounter a start or end tag.
$in_protected_tag = array_intersect( $tag_stack, $protected_tags );
// Never inspect tags.
$content_with_links .= $chunk;
continue;
}
if ( $in_protected_tag ) {
// Don't inspect a chunk inside an inspected tag.
$content_with_links .= $chunk;
continue;
}
// Only reachable when there is no protected tag in the stack.
$content_with_links .= \preg_replace_callback( '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/', array( self::class, 'replace_with_links' ), $chunk );
}
return $content_with_links;
}
/**
* A callback for preg_replace to build the user links
*
* @param array $result the preg_match results
*
* @return string the final string
*/
public static function replace_with_links( $result ) {
$metadata = get_remote_metadata_by_actor( $result[0] );
if (
! empty( $metadata ) &&
! is_wp_error( $metadata ) &&
( ! empty( $metadata['id'] ) || ! empty( $metadata['url'] ) )
) {
$username = ltrim( $result[0], '@' );
if ( ! empty( $metadata['name'] ) ) {
$username = $metadata['name'];
}
if ( ! empty( $metadata['preferredUsername'] ) ) {
$username = $metadata['preferredUsername'];
}
$url = isset( $metadata['url'] ) ? object_to_uri( $metadata['url'] ) : object_to_uri( $metadata['id'] );
return \sprintf( '<a rel="mention" class="u-url mention" href="%s">@<span>%s</span></a>', esc_url( $url ), esc_html( $username ) );
}
return $result[0];
}
/**
* Get the Inboxes for the mentioned Actors
*
* @param array $mentioned The list of Actors that were mentioned
*
* @return array The list of Inboxes
*/
public static function get_inboxes( $mentioned ) {
$inboxes = array();
foreach ( $mentioned as $actor ) {
$inbox = self::get_inbox_by_mentioned_actor( $actor );
if ( ! is_wp_error( $inbox ) && $inbox ) {
$inboxes[] = $inbox;
}
}
return $inboxes;
}
/**
* Get the inbox from the Remote-Profile of a mentioned Actor
*
* @param string $actor The Actor-URL
*
* @return string The Inbox-URL
*/
public static function get_inbox_by_mentioned_actor( $actor ) {
$metadata = get_remote_metadata_by_actor( $actor );
if ( \is_wp_error( $metadata ) ) {
return $metadata;
}
if ( isset( $metadata['endpoints'] ) && isset( $metadata['endpoints']['sharedInbox'] ) ) {
return $metadata['endpoints']['sharedInbox'];
}
if ( \array_key_exists( 'inbox', $metadata ) ) {
return $metadata['inbox'];
}
return new WP_Error( 'activitypub_no_inbox', \__( 'No "Inbox" found', 'activitypub' ), $metadata );
}
/**
* Extract the mentions from the post_content.
*
* @param array $mentions The already found mentions.
* @param string $post_content The post content.
*
* @return mixed The discovered mentions.
*/
public static function extract_mentions( $mentions, $post_content ) {
\preg_match_all( '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/i', $post_content, $matches );
foreach ( $matches[0] as $match ) {
$link = Webfinger::resolve( $match );
if ( ! is_wp_error( $link ) ) {
$mentions[ $match ] = $link;
}
}
return $mentions;
}
}

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<?php
namespace Activitypub;
use Activitypub\Activitypub;
use Activitypub\Model\Blog;
use Activitypub\Collection\Followers;
/**
* ActivityPub Migration Class
*
* @author Matthias Pfefferle
*/
class Migration {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
\add_action( 'activitypub_migrate', array( self::class, 'async_migration' ) );
self::maybe_migrate();
}
/**
* Get the target version.
*
* This is the version that the database structure will be updated to.
* It is the same as the plugin version.
*
* @return string The target version.
*/
public static function get_target_version() {
return get_plugin_version();
}
/**
* The current version of the database structure.
*
* @return string The current version.
*/
public static function get_version() {
return get_option( 'activitypub_db_version', 0 );
}
/**
* Locks the database migration process to prevent simultaneous migrations.
*
* @return void
*/
public static function lock() {
\update_option( 'activitypub_migration_lock', \time() );
}
/**
* Unlocks the database migration process.
*
* @return void
*/
public static function unlock() {
\delete_option( 'activitypub_migration_lock' );
}
/**
* Whether the database migration process is locked.
*
* @return boolean
*/
public static function is_locked() {
$lock = \get_option( 'activitypub_migration_lock' );
if ( ! $lock ) {
return false;
}
$lock = (int) $lock;
if ( $lock < \time() - 1800 ) {
self::unlock();
return false;
}
return true;
}
/**
* Whether the database structure is up to date.
*
* @return bool True if the database structure is up to date, false otherwise.
*/
public static function is_latest_version() {
return (bool) version_compare(
self::get_version(),
self::get_target_version(),
'=='
);
}
/**
* Updates the database structure if necessary.
*/
public static function maybe_migrate() {
if ( self::is_latest_version() ) {
return;
}
if ( self::is_locked() ) {
return;
}
self::lock();
$version_from_db = self::get_version();
// check for inital migration
if ( ! $version_from_db ) {
self::add_default_settings();
$version_from_db = self::get_target_version();
}
// schedule the async migration
if ( ! \wp_next_scheduled( 'activitypub_migrate', $version_from_db ) ) {
\wp_schedule_single_event( \time(), 'activitypub_migrate', array( $version_from_db ) );
}
if ( version_compare( $version_from_db, '0.17.0', '<' ) ) {
self::migrate_from_0_16();
}
if ( version_compare( $version_from_db, '1.3.0', '<' ) ) {
self::migrate_from_1_2_0();
}
if ( version_compare( $version_from_db, '2.1.0', '<' ) ) {
self::migrate_from_2_0_0();
}
if ( version_compare( $version_from_db, '2.3.0', '<' ) ) {
self::migrate_from_2_2_0();
}
update_option( 'activitypub_db_version', self::get_target_version() );
self::unlock();
}
/**
* Asynchronously migrates the database structure.
*
* @param string $version_from_db The version from which to migrate.
*/
public static function async_migration( $version_from_db ) {
if ( version_compare( $version_from_db, '1.0.0', '<' ) ) {
self::migrate_from_0_17();
}
}
/**
* Updates the custom template to use shortcodes instead of the deprecated templates.
*
* @return void
*/
private static function migrate_from_0_16() {
// Get the custom template.
$old_content = \get_option( 'activitypub_custom_post_content', ACTIVITYPUB_CUSTOM_POST_CONTENT );
// If the old content exists but is a blank string, we're going to need a flag to updated it even
// after setting it to the default contents.
$need_update = false;
// If the old contents is blank, use the defaults.
if ( '' === $old_content ) {
$old_content = ACTIVITYPUB_CUSTOM_POST_CONTENT;
$need_update = true;
}
// Set the new content to be the old content.
$content = $old_content;
// Convert old templates to shortcodes.
$content = \str_replace( '%title%', '[ap_title]', $content );
$content = \str_replace( '%excerpt%', '[ap_excerpt]', $content );
$content = \str_replace( '%content%', '[ap_content]', $content );
$content = \str_replace( '%permalink%', '[ap_permalink type="html"]', $content );
$content = \str_replace( '%shortlink%', '[ap_shortlink type="html"]', $content );
$content = \str_replace( '%hashtags%', '[ap_hashtags]', $content );
$content = \str_replace( '%tags%', '[ap_hashtags]', $content );
// Store the new template if required.
if ( $content !== $old_content || $need_update ) {
\update_option( 'activitypub_custom_post_content', $content );
}
}
/**
* Updates the DB-schema of the followers-list
*
* @return void
*/
public static function migrate_from_0_17() {
// migrate followers
foreach ( get_users( array( 'fields' => 'ID' ) ) as $user_id ) {
$followers = get_user_meta( $user_id, 'activitypub_followers', true );
if ( $followers ) {
foreach ( $followers as $actor ) {
Followers::add_follower( $user_id, $actor );
}
}
}
Activitypub::flush_rewrite_rules();
}
/**
* Clear the cache after updating to 1.3.0
*
* @return void
*/
private static function migrate_from_1_2_0() {
$user_ids = \get_users(
array(
'fields' => 'ID',
'capability__in' => array( 'publish_posts' ),
)
);
foreach ( $user_ids as $user_id ) {
wp_cache_delete( sprintf( Followers::CACHE_KEY_INBOXES, $user_id ), 'activitypub' );
}
}
/**
* Unschedule Hooks after updating to 2.0.0
*
* @return void
*/
private static function migrate_from_2_0_0() {
wp_clear_scheduled_hook( 'activitypub_send_post_activity' );
wp_clear_scheduled_hook( 'activitypub_send_update_activity' );
wp_clear_scheduled_hook( 'activitypub_send_delete_activity' );
wp_unschedule_hook( 'activitypub_send_post_activity' );
wp_unschedule_hook( 'activitypub_send_update_activity' );
wp_unschedule_hook( 'activitypub_send_delete_activity' );
$object_type = \get_option( 'activitypub_object_type', ACTIVITYPUB_DEFAULT_OBJECT_TYPE );
if ( 'article' === $object_type ) {
\update_option( 'activitypub_object_type', 'wordpress-post-format' );
}
}
/**
* Add the ActivityPub capability to all users that can publish posts
* Delete old meta to store followers
*
* @return void
*/
private static function migrate_from_2_2_0() {
// add the ActivityPub capability to all users that can publish posts
self::add_activitypub_capability();
}
/**
* Set the defaults needed for the plugin to work
*
* * Add the ActivityPub capability to all users that can publish posts
*
* @return void
*/
public static function add_default_settings() {
self::add_activitypub_capability();
}
/**
* Add the ActivityPub capability to all users that can publish posts
*
* @return void
*/
private static function add_activitypub_capability() {
// get all WP_User objects that can publish posts
$users = \get_users(
array(
'capability__in' => array( 'publish_posts' ),
)
);
// add ActivityPub capability to all users that can publish posts
foreach ( $users as $user ) {
$user->add_cap( 'activitypub' );
}
}
}

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<?php
namespace Activitypub;
/**
* Notification class.
*/
class Notification {
/**
* The type of the notification.
*
* @var string
*/
public $type;
/**
* The actor URL.
*
* @var string
*/
public $actor;
/**
* The Activity object.
*
* @var array
*/
public $object;
/**
* The WordPress User-Id.
*
* @var int
*/
public $target;
/**
* Notification constructor.
*
* @param string $type The type of the notification.
* @param string $actor The actor URL.
* @param array $object The Activity object.
* @param int $target The WordPress User-Id.
*/
public function __construct( $type, $actor, $object, $target ) { // phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.objectFound
$this->type = $type;
$this->actor = $actor;
$this->object = $object;
$this->target = $target;
}
/**
* Send the notification.
*/
public function send() {
do_action( 'activitypub_notification', $this );
}
}

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<?php
namespace Activitypub;
use Activitypub\Transformer\Post;
use Activitypub\Collection\Users;
use Activitypub\Collection\Followers;
use function Activitypub\was_comment_sent;
use function Activitypub\is_user_type_disabled;
use function Activitypub\should_comment_be_federated;
use function Activitypub\get_remote_metadata_by_actor;
/**
* ActivityPub Scheduler Class
*
* @author Matthias Pfefferle
*/
class Scheduler {
/**
* Initialize the class, registering WordPress hooks
*/
public static function init() {
// Post transitions
\add_action( 'transition_post_status', array( self::class, 'schedule_post_activity' ), 33, 3 );
\add_action(
'edit_attachment',
function ( $post_id ) {
self::schedule_post_activity( 'publish', 'publish', $post_id );
}
);
\add_action(
'add_attachment',
function ( $post_id ) {
self::schedule_post_activity( 'publish', '', $post_id );
}
);
\add_action(
'delete_attachment',
function ( $post_id ) {
self::schedule_post_activity( 'trash', '', $post_id );
}
);
if ( ! ACTIVITYPUB_DISABLE_OUTGOING_INTERACTIONS ) {
// Comment transitions
\add_action( 'transition_comment_status', array( self::class, 'schedule_comment_activity' ), 20, 3 );
\add_action(
'edit_comment',
function ( $comment_id ) {
self::schedule_comment_activity( 'approved', 'approved', $comment_id );
}
);
\add_action(
'wp_insert_comment',
function ( $comment_id ) {
self::schedule_comment_activity( 'approved', '', $comment_id );
}
);
}
// Follower Cleanups
\add_action( 'activitypub_update_followers', array( self::class, 'update_followers' ) );
\add_action( 'activitypub_cleanup_followers', array( self::class, 'cleanup_followers' ) );
// profile updates for blog options
if ( ! is_user_type_disabled( 'blog' ) ) {
\add_action( 'update_option_site_icon', array( self::class, 'blog_user_update' ) );
\add_action( 'update_option_blogdescription', array( self::class, 'blog_user_update' ) );
\add_action( 'update_option_blogname', array( self::class, 'blog_user_update' ) );
\add_filter( 'pre_set_theme_mod_custom_logo', array( self::class, 'blog_user_update' ) );
\add_filter( 'pre_set_theme_mod_header_image', array( self::class, 'blog_user_update' ) );
}
// profile updates for user options
if ( ! is_user_type_disabled( 'user' ) ) {
\add_action( 'wp_update_user', array( self::class, 'user_update' ) );
\add_action( 'updated_user_meta', array( self::class, 'user_meta_update' ), 10, 3 );
// @todo figure out a feasible way of updating the header image since it's not unique to any user.
}
}
/**
* Schedule all ActivityPub schedules.
*
* @return void
*/
public static function register_schedules() {
if ( ! \wp_next_scheduled( 'activitypub_update_followers' ) ) {
\wp_schedule_event( time(), 'hourly', 'activitypub_update_followers' );
}
if ( ! \wp_next_scheduled( 'activitypub_cleanup_followers' ) ) {
\wp_schedule_event( time(), 'daily', 'activitypub_cleanup_followers' );
}
}
/**
* Unscedule all ActivityPub schedules.
*
* @return void
*/
public static function deregister_schedules() {
wp_unschedule_hook( 'activitypub_update_followers' );
wp_unschedule_hook( 'activitypub_cleanup_followers' );
}
/**
* Schedule Activities.
*
* @param string $new_status New post status.
* @param string $old_status Old post status.
* @param WP_Post $post Post object.
*/
public static function schedule_post_activity( $new_status, $old_status, $post ) {
$post = get_post( $post );
if ( 'ap_extrafield' === $post->post_type ) {
self::schedule_profile_update( $post->post_author );
return;
}
// Do not send activities if post is password protected.
if ( \post_password_required( $post ) ) {
return;
}
// Check if post-type supports ActivityPub.
$post_types = \get_post_types_by_support( 'activitypub' );
if ( ! \in_array( $post->post_type, $post_types, true ) ) {
return;
}
$type = false;
if (
'publish' === $new_status &&
'publish' !== $old_status
) {
$type = 'Create';
} elseif (
'publish' === $new_status ||
( 'draft' === $new_status &&
'draft' !== $old_status )
) {
$type = 'Update';
} elseif ( 'trash' === $new_status ) {
$type = 'Delete';
}
if ( empty( $type ) ) {
return;
}
$hook = 'activitypub_send_post';
$args = array( $post->ID, $type );
if ( false === wp_next_scheduled( $hook, $args ) ) {
set_wp_object_state( $post, 'federate' );
\wp_schedule_single_event( \time(), $hook, $args );
}
}
/**
* Schedule Comment Activities
*
* transition_comment_status()
*
* @param string $new_status New comment status.
* @param string $old_status Old comment status.
* @param WP_Comment $comment Comment object.
*/
public static function schedule_comment_activity( $new_status, $old_status, $comment ) {
$comment = get_comment( $comment );
// federate only comments that are written by a registered user.
if ( ! $comment->user_id ) {
return;
}
$type = false;
if (
'approved' === $new_status &&
'approved' !== $old_status
) {
$type = 'Create';
} elseif ( 'approved' === $new_status ) {
$type = 'Update';
\update_comment_meta( $comment->comment_ID, 'activitypub_comment_modified', time(), true );
} elseif (
'trash' === $new_status ||
'spam' === $new_status
) {
$type = 'Delete';
}
if ( empty( $type ) ) {
return;
}
// check if comment should be federated or not
if ( ! should_comment_be_federated( $comment ) ) {
return;
}
$hook = 'activitypub_send_comment';
$args = array( $comment->comment_ID, $type );
if ( false === wp_next_scheduled( $hook, $args ) ) {
set_wp_object_state( $comment, 'federate' );
\wp_schedule_single_event( \time(), $hook, $args );
}
}
/**
* Update followers
*
* @return void
*/
public static function update_followers() {
$number = 5;
if ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) {
$number = 50;
}
$number = apply_filters( 'activitypub_update_followers_number', $number );
$followers = Followers::get_outdated_followers( $number );
foreach ( $followers as $follower ) {
$meta = get_remote_metadata_by_actor( $follower->get_id(), false );
if ( empty( $meta ) || ! is_array( $meta ) || is_wp_error( $meta ) ) {
Followers::add_error( $follower->get__id(), $meta );
} else {
$follower->from_array( $meta );
$follower->update();
}
}
}
/**
* Cleanup followers
*
* @return void
*/
public static function cleanup_followers() {
$number = 5;
if ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) {
$number = 50;
}
$number = apply_filters( 'activitypub_update_followers_number', $number );
$followers = Followers::get_faulty_followers( $number );
foreach ( $followers as $follower ) {
$meta = get_remote_metadata_by_actor( $follower->get_url(), false );
if ( is_tombstone( $meta ) ) {
$follower->delete();
} elseif ( empty( $meta ) || ! is_array( $meta ) || is_wp_error( $meta ) ) {
if ( $follower->count_errors() >= 5 ) {
$follower->delete();
\wp_schedule_single_event(
\time(),
'activitypub_delete_actor_interactions',
array( $follower->get_id() )
);
} else {
Followers::add_error( $follower->get__id(), $meta );
}
} else {
$follower->reset_errors();
}
}
}
/**
* Send a profile update when relevant user meta is updated.
*
* @param int $meta_id Meta ID being updated.
* @param int $user_id User ID being updated.
* @param string $meta_key Meta key being updated.
*
* @return void
*/
public static function user_meta_update( $meta_id, $user_id, $meta_key ) {
// don't bother if the user can't publish
if ( ! \user_can( $user_id, 'activitypub' ) ) {
return;
}
// the user meta fields that affect a profile.
$fields = array(
'activitypub_user_description',
'description',
'user_url',
'display_name',
);
if ( in_array( $meta_key, $fields, true ) ) {
self::schedule_profile_update( $user_id );
}
}
/**
* Send a profile update when a user is updated.
*
* @param int $user_id User ID being updated.
*
* @return void
*/
public static function user_update( $user_id ) {
// don't bother if the user can't publish
if ( ! \user_can( $user_id, 'activitypub' ) ) {
return;
}
self::schedule_profile_update( $user_id );
}
/**
* Theme mods only have a dynamic filter so we fudge it like this.
*
* @param mixed $value
*
* @return mixed
*/
public static function blog_user_update( $value = null ) {
self::schedule_profile_update( 0 );
return $value;
}
/**
* Send a profile update to all followers. Gets hooked into all relevant options/meta etc.
*
* @param int $user_id The user ID to update (Could be 0 for Blog-User).
*/
public static function schedule_profile_update( $user_id ) {
\wp_schedule_single_event(
\time(),
'activitypub_send_update_profile_activity',
array( $user_id )
);
}
}

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<?php
namespace Activitypub;
use function Activitypub\esc_hashtag;
class Shortcodes {
/**
* Register the shortcodes
*/
public static function register() {
foreach ( get_class_methods( self::class ) as $shortcode ) {
if ( 'init' !== $shortcode ) {
add_shortcode( 'ap_' . $shortcode, array( self::class, $shortcode ) );
}
}
}
/**
* Unregister the shortcodes
*/
public static function unregister() {
foreach ( get_class_methods( self::class ) as $shortcode ) {
if ( 'init' !== $shortcode ) {
remove_shortcode( 'ap_' . $shortcode );
}
}
}
/**
* Generates output for the 'ap_hashtags' shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post tags as hashtags.
*/
public static function hashtags( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$tags = \get_the_tags( $item->ID );
if ( ! $tags ) {
return '';
}
$hash_tags = array();
foreach ( $tags as $tag ) {
$hash_tags[] = \sprintf(
'<a rel="tag" class="hashtag u-tag u-category" href="%s">%s</a>',
\esc_url( \get_tag_link( $tag ) ),
esc_hashtag( $tag->name )
);
}
return \implode( ' ', $hash_tags );
}
/**
* Generates output for the 'ap_title' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post title.
*/
public static function title( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
return \wp_strip_all_tags( \get_the_title( $item->ID ), true );
}
/**
* Generates output for the 'ap_excerpt' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post excerpt.
*/
public static function excerpt( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$atts = shortcode_atts(
array( 'length' => ACTIVITYPUB_EXCERPT_LENGTH ),
$atts,
$tag
);
$excerpt_length = intval( $atts['length'] );
if ( 0 === $excerpt_length ) {
$excerpt_length = ACTIVITYPUB_EXCERPT_LENGTH;
}
$excerpt = \get_post_field( 'post_excerpt', $item );
if ( 'attachment' === $item->post_type ) {
// get title of attachment with fallback to alt text.
$content = wp_get_attachment_caption( $item->ID );
if ( empty( $content ) ) {
$content = get_post_meta( $item->ID, '_wp_attachment_image_alt', true );
}
} elseif ( '' === $excerpt ) {
$content = \get_post_field( 'post_content', $item );
// An empty string will make wp_trim_excerpt do stuff we do not want.
if ( '' !== $content ) {
$excerpt = \strip_shortcodes( $content );
/** This filter is documented in wp-includes/post-template.php */
$excerpt = \apply_filters( 'the_content', $excerpt );
$excerpt = \str_replace( ']]>', ']]&gt;', $excerpt );
}
}
// Strip out any remaining tags.
$excerpt = \wp_strip_all_tags( $excerpt );
$excerpt_more = \apply_filters( 'activitypub_excerpt_more', ' [&hellip;]' );
$excerpt_more_len = strlen( $excerpt_more );
// We now have a excerpt, but we need to check it's length, it may be longer than we want for two reasons:
//
// * The user has entered a manual excerpt which is longer that what we want.
// * No manual excerpt exists so we've used the content which might be longer than we want.
//
// Either way, let's trim it up if we need too. Also, don't forget to take into account the more indicator
// as part of the total length.
//
// Setup a variable to hold the current excerpts length.
$current_excerpt_length = strlen( $excerpt );
// Setup a variable to keep track of our target length.
$target_excerpt_length = $excerpt_length - $excerpt_more_len;
// Setup a variable to keep track of the current max length.
$current_excerpt_max = $target_excerpt_length;
// This is a loop since we can't calculate word break the string after 'the_excpert' filter has run (we would break
// all kinds of html tags), so we have to cut the excerpt down a bit at a time until we hit our target length.
while ( $current_excerpt_length > $target_excerpt_length && $current_excerpt_max > 0 ) {
// Trim the excerpt based on wordwrap() positioning.
// Note: we're using <br> as the linebreak just in case there are any newlines existing in the excerpt from the user.
// There won't be any <br> left after we've run wp_strip_all_tags() in the code above, so they're
// safe to use here. It won't be included in the final excerpt as the substr() will trim it off.
$excerpt = substr( $excerpt, 0, strpos( wordwrap( $excerpt, $current_excerpt_max, '<br>' ), '<br>' ) );
// If something went wrong, or we're in a language that wordwrap() doesn't understand,
// just chop it off and don't worry about breaking in the middle of a word.
if ( strlen( $excerpt ) > $excerpt_length - $excerpt_more_len ) {
$excerpt = substr( $excerpt, 0, $current_excerpt_max );
}
// Add in the more indicator.
$excerpt = $excerpt . $excerpt_more;
// Run it through the excerpt filter which will add some html tags back in.
$excerpt_filtered = apply_filters( 'the_excerpt', $excerpt );
// Now set the current excerpt length to this new filtered length.
$current_excerpt_length = strlen( $excerpt_filtered );
// Check to see if we're over the target length.
if ( $current_excerpt_length > $target_excerpt_length ) {
// If so, remove 20 characters from the current max and run the loop again.
$current_excerpt_max = $current_excerpt_max - 20;
}
}
return \apply_filters( 'the_excerpt', $excerpt );
}
/**
* Generates output for the 'ap_content' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post content.
*/
public static function content( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
// prevent inception
remove_shortcode( 'ap_content' );
$atts = shortcode_atts(
array( 'apply_filters' => 'yes' ),
$atts,
$tag
);
$content = '';
if ( 'attachment' === $item->post_type ) {
// get title of attachment with fallback to alt text.
$content = wp_get_attachment_caption( $item->ID );
if ( empty( $content ) ) {
$content = get_post_meta( $item->ID, '_wp_attachment_image_alt', true );
}
} else {
$content = \get_post_field( 'post_content', $item );
if ( 'yes' === $atts['apply_filters'] ) {
$content = \apply_filters( 'the_content', $content );
} else {
$content = do_blocks( $content );
$content = wptexturize( $content );
$content = wp_filter_content_tags( $content );
}
// replace script and style elements
$content = \preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $content );
$content = strip_shortcodes( $content );
$content = \trim( \preg_replace( '/[\n\r\t]/', '', $content ) );
}
add_shortcode( 'ap_content', array( 'Activitypub\Shortcodes', 'content' ) );
return $content;
}
/**
* Generates output for the 'ap_permalink' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post permalink.
*/
public static function permalink( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$atts = shortcode_atts(
array(
'type' => 'url',
),
$atts,
$tag
);
if ( 'url' === $atts['type'] ) {
return \esc_url( \get_permalink( $item->ID ) );
}
return \sprintf(
'<a href="%1$s" class="status-link unhandled-link">%1$s</a>',
\esc_url( \get_permalink( $item->ID ) )
);
}
/**
* Generates output for the 'ap_shortlink' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post shortlink.
*/
public static function shortlink( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$atts = shortcode_atts(
array(
'type' => 'url',
),
$atts,
$tag
);
if ( 'url' === $atts['type'] ) {
return \esc_url( \wp_get_shortlink( $item->ID ) );
}
return \sprintf(
'<a href="%1$s" class="status-link unhandled-link">%1$s</a>',
\esc_url( \wp_get_shortlink( $item->ID ) )
);
}
/**
* Generates output for the 'ap_image' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string
*/
public static function image( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$atts = shortcode_atts(
array(
'type' => 'full',
),
$atts,
$tag
);
$size = 'full';
if ( in_array(
$atts['type'],
array( 'thumbnail', 'medium', 'large', 'full' ),
true
) ) {
$size = $atts['type'];
}
$image = \get_the_post_thumbnail_url( $item->ID, $size );
if ( ! $image ) {
return '';
}
return \esc_url( $image );
}
/**
* Generates output for the 'ap_hashcats' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post categories as hashtags.
*/
public static function hashcats( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$categories = \get_the_category( $item->ID );
if ( ! $categories ) {
return '';
}
$hash_tags = array();
foreach ( $categories as $category ) {
$hash_tags[] = \sprintf(
'<a rel="tag" class="hashtag u-tag u-category" href="%s">%s</a>',
\esc_url( \get_category_link( $category ) ),
esc_hashtag( $category->name )
);
}
return \implode( ' ', $hash_tags );
}
/**
* Generates output for the 'ap_author' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The author name.
*/
public static function author( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$author_id = \get_post_field( 'post_author', $item->ID );
$name = \get_the_author_meta( 'display_name', $author_id );
if ( ! $name ) {
return '';
}
return wp_strip_all_tags( $name );
}
/**
* Generates output for the 'ap_authorurl' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The author URL.
*/
public static function authorurl( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$author_id = \get_post_field( 'post_author', $item->ID );
$url = \get_the_author_meta( 'user_url', $author_id );
if ( ! $url ) {
return '';
}
return \esc_url( $url );
}
/**
* Generates output for the 'ap_blogurl' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The site URL.
*/
public static function blogurl( $atts, $content, $tag ) {
return \esc_url( \get_bloginfo( 'url' ) );
}
/**
* Generates output for the 'ap_blogname' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string
*/
public static function blogname( $atts, $content, $tag ) {
return \wp_strip_all_tags( \get_bloginfo( 'name' ) );
}
/**
* Generates output for the 'ap_blogdesc' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The site description.
*/
public static function blogdesc( $atts, $content, $tag ) {
return \wp_strip_all_tags( \get_bloginfo( 'description' ) );
}
/**
* Generates output for the 'ap_date' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post date.
*/
public static function date( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$datetime = \get_post_datetime( $item );
$dateformat = \get_option( 'date_format' );
$timeformat = \get_option( 'time_format' );
$date = $datetime->format( $dateformat );
if ( ! $date ) {
return '';
}
return $date;
}
/**
* Generates output for the 'ap_time' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post time.
*/
public static function time( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$datetime = \get_post_datetime( $item );
$dateformat = \get_option( 'date_format' );
$timeformat = \get_option( 'time_format' );
$date = $datetime->format( $timeformat );
if ( ! $date ) {
return '';
}
return $date;
}
/**
* Generates output for the 'ap_datetime' Shortcode
*
* @param array $atts The Shortcode attributes.
* @param string $content The ActivityPub post-content.
* @param string $tag The tag/name of the Shortcode.
*
* @return string The post date/time.
*/
public static function datetime( $atts, $content, $tag ) {
$item = self::get_item();
if ( ! $item ) {
return '';
}
$datetime = \get_post_datetime( $item );
$dateformat = \get_option( 'date_format' );
$timeformat = \get_option( 'time_format' );
$date = $datetime->format( $dateformat . ' @ ' . $timeformat );
if ( ! $date ) {
return '';
}
return $date;
}
/**
* Get a WordPress item to federate.
*
* Checks if item (WP_Post) is "public", a supported post type
* and not password protected.
*
* @return null|WP_Post The WordPress item.
*/
protected static function get_item() {
$post = \get_post();
if ( ! $post ) {
return null;
}
if ( 'publish' !== \get_post_status( $post ) ) {
return null;
}
if ( \post_password_required( $post ) ) {
return null;
}
if ( ! \in_array( \get_post_type( $post ), \get_post_types_by_support( 'activitypub' ), true ) ) {
return null;
}
return $post;
}
}

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@ -0,0 +1,510 @@
<?php
namespace Activitypub;
use WP_Error;
use DateTime;
use DateTimeZone;
use WP_REST_Request;
use Activitypub\Collection\Users;
/**
* ActivityPub Signature Class
*
* @author Matthias Pfefferle
* @author Django Doucet
*/
class Signature {
/**
* Return the public key for a given user.
*
* @param int $user_id The WordPress User ID.
* @param bool $force Force the generation of a new key pair.
*
* @return mixed The public key.
*/
public static function get_public_key_for( $user_id, $force = false ) {
if ( $force ) {
self::generate_key_pair_for( $user_id );
}
$key_pair = self::get_keypair_for( $user_id );
return $key_pair['public_key'];
}
/**
* Return the private key for a given user.
*
* @param int $user_id The WordPress User ID.
* @param bool $force Force the generation of a new key pair.
*
* @return mixed The private key.
*/
public static function get_private_key_for( $user_id, $force = false ) {
if ( $force ) {
self::generate_key_pair_for( $user_id );
}
$key_pair = self::get_keypair_for( $user_id );
return $key_pair['private_key'];
}
/**
* Return the key pair for a given user.
*
* @param int $user_id The WordPress User ID.
*
* @return array The key pair.
*/
public static function get_keypair_for( $user_id ) {
$option_key = self::get_signature_options_key_for( $user_id );
$key_pair = \get_option( $option_key );
if ( ! $key_pair ) {
$key_pair = self::generate_key_pair_for( $user_id );
}
return $key_pair;
}
/**
* Generates the pair keys
*
* @param int $user_id The WordPress User ID.
*
* @return array The key pair.
*/
protected static function generate_key_pair_for( $user_id ) {
$option_key = self::get_signature_options_key_for( $user_id );
$key_pair = self::check_legacy_key_pair_for( $user_id );
if ( $key_pair ) {
\add_option( $option_key, $key_pair );
return $key_pair;
}
$config = array(
'digest_alg' => 'sha512',
'private_key_bits' => 2048,
'private_key_type' => \OPENSSL_KEYTYPE_RSA,
);
$key = \openssl_pkey_new( $config );
$priv_key = null;
\openssl_pkey_export( $key, $priv_key );
$detail = \openssl_pkey_get_details( $key );
// check if keys are valid
if (
empty( $priv_key ) || ! is_string( $priv_key ) ||
! isset( $detail['key'] ) || ! is_string( $detail['key'] )
) {
return array(
'private_key' => null,
'public_key' => null,
);
}
$key_pair = array(
'private_key' => $priv_key,
'public_key' => $detail['key'],
);
// persist keys
\add_option( $option_key, $key_pair );
return $key_pair;
}
/**
* Return the option key for a given user.
*
* @param int $user_id The WordPress User ID.
*
* @return string The option key.
*/
protected static function get_signature_options_key_for( $user_id ) {
$id = $user_id;
if ( $user_id > 0 ) {
$user = \get_userdata( $user_id );
// sanatize username because it could include spaces and special chars
$id = sanitize_title( $user->user_login );
}
return 'activitypub_keypair_for_' . $id;
}
/**
* Check if there is a legacy key pair
*
* @param int $user_id The WordPress User ID.
*
* @return array|bool The key pair or false.
*/
protected static function check_legacy_key_pair_for( $user_id ) {
switch ( $user_id ) {
case 0:
$public_key = \get_option( 'activitypub_blog_user_public_key' );
$private_key = \get_option( 'activitypub_blog_user_private_key' );
break;
case -1:
$public_key = \get_option( 'activitypub_application_user_public_key' );
$private_key = \get_option( 'activitypub_application_user_private_key' );
break;
default:
$public_key = \get_user_meta( $user_id, 'magic_sig_public_key', true );
$private_key = \get_user_meta( $user_id, 'magic_sig_private_key', true );
break;
}
if ( ! empty( $public_key ) && is_string( $public_key ) && ! empty( $private_key ) && is_string( $private_key ) ) {
return array(
'private_key' => $private_key,
'public_key' => $public_key,
);
}
return false;
}
/**
* Generates the Signature for a HTTP Request
*
* @param int $user_id The WordPress User ID.
* @param string $http_method The HTTP method.
* @param string $url The URL to send the request to.
* @param string $date The date the request is sent.
* @param string $digest The digest of the request body.
*
* @return string The signature.
*/
public static function generate_signature( $user_id, $http_method, $url, $date, $digest = null ) {
$user = Users::get_by_id( $user_id );
$key = self::get_private_key_for( $user->get__id() );
$url_parts = \wp_parse_url( $url );
$host = $url_parts['host'];
$path = '/';
// add path
if ( ! empty( $url_parts['path'] ) ) {
$path = $url_parts['path'];
}
// add query
if ( ! empty( $url_parts['query'] ) ) {
$path .= '?' . $url_parts['query'];
}
$http_method = \strtolower( $http_method );
if ( ! empty( $digest ) ) {
$signed_string = "(request-target): $http_method $path\nhost: $host\ndate: $date\ndigest: $digest";
} else {
$signed_string = "(request-target): $http_method $path\nhost: $host\ndate: $date";
}
$signature = null;
\openssl_sign( $signed_string, $signature, $key, \OPENSSL_ALGO_SHA256 );
$signature = \base64_encode( $signature ); // phpcs:ignore
$key_id = $user->get_url() . '#main-key';
if ( ! empty( $digest ) ) {
return \sprintf( 'keyId="%s",algorithm="rsa-sha256",headers="(request-target) host date digest",signature="%s"', $key_id, $signature );
} else {
return \sprintf( 'keyId="%s",algorithm="rsa-sha256",headers="(request-target) host date",signature="%s"', $key_id, $signature );
}
}
/**
* Verifies the http signatures
*
* @param WP_REST_Request|array $request The request object or $_SERVER array.
*
* @return mixed A boolean or WP_Error.
*/
public static function verify_http_signature( $request ) {
if ( is_object( $request ) ) { // REST Request object
// check if route starts with "index.php"
if ( str_starts_with( $request->get_route(), '/index.php' ) || ! rest_get_url_prefix() ) {
$route = $request->get_route();
} else {
$route = '/' . rest_get_url_prefix() . '/' . ltrim( $request->get_route(), '/' );
}
// fix route for subdirectory installs
$path = \wp_parse_url( \get_home_url(), PHP_URL_PATH );
if ( \is_string( $path ) ) {
$path = trim( $path, '/' );
}
if ( $path ) {
$route = '/' . $path . $route;
}
$headers = $request->get_headers();
$headers['(request-target)'][0] = strtolower( $request->get_method() ) . ' ' . $route;
} else {
$request = self::format_server_request( $request );
$headers = $request['headers']; // $_SERVER array
$headers['(request-target)'][0] = strtolower( $headers['request_method'][0] ) . ' ' . $headers['request_uri'][0];
}
if ( ! isset( $headers['signature'] ) ) {
return new WP_Error( 'activitypub_signature', __( 'Request not signed', 'activitypub' ), array( 'status' => 401 ) );
}
if ( array_key_exists( 'signature', $headers ) ) {
$signature_block = self::parse_signature_header( $headers['signature'][0] );
} elseif ( array_key_exists( 'authorization', $headers ) ) {
$signature_block = self::parse_signature_header( $headers['authorization'][0] );
}
if ( ! isset( $signature_block ) || ! $signature_block ) {
return new WP_Error( 'activitypub_signature', __( 'Incompatible request signature. keyId and signature are required', 'activitypub' ), array( 'status' => 401 ) );
}
$signed_headers = $signature_block['headers'];
if ( ! $signed_headers ) {
$signed_headers = array( 'date' );
}
$signed_data = self::get_signed_data( $signed_headers, $signature_block, $headers );
if ( ! $signed_data ) {
return new WP_Error( 'activitypub_signature', __( 'Signed request date outside acceptable time window', 'activitypub' ), array( 'status' => 401 ) );
}
$algorithm = self::get_signature_algorithm( $signature_block );
if ( ! $algorithm ) {
return new WP_Error( 'activitypub_signature', __( 'Unsupported signature algorithm (only rsa-sha256 and hs2019 are supported)', 'activitypub' ), array( 'status' => 401 ) );
}
if ( \in_array( 'digest', $signed_headers, true ) && isset( $body ) ) {
if ( is_array( $headers['digest'] ) ) {
$headers['digest'] = $headers['digest'][0];
}
$hashalg = 'sha256';
$digest = explode( '=', $headers['digest'], 2 );
if ( 'SHA-256' === $digest[0] ) {
$hashalg = 'sha256';
}
if ( 'SHA-512' === $digest[0] ) {
$hashalg = 'sha512';
}
if ( \base64_encode( \hash( $hashalg, $body, true ) ) !== $digest[1] ) { // phpcs:ignore
return new WP_Error( 'activitypub_signature', __( 'Invalid Digest header', 'activitypub' ), array( 'status' => 401 ) );
}
}
$public_key = self::get_remote_key( $signature_block['keyId'] );
if ( \is_wp_error( $public_key ) ) {
return $public_key;
}
$verified = \openssl_verify( $signed_data, $signature_block['signature'], $public_key, $algorithm ) > 0;
if ( ! $verified ) {
return new WP_Error( 'activitypub_signature', __( 'Invalid signature', 'activitypub' ), array( 'status' => 401 ) );
}
return $verified;
}
/**
* Get public key from key_id
*
* @param string $key_id The URL to the public key.
*
* @return WP_Error|string The public key or WP_Error.
*/
public static function get_remote_key( $key_id ) { // phpcs:ignore
$actor = get_remote_metadata_by_actor( strip_fragment_from_url( $key_id ) ); // phpcs:ignore
if ( \is_wp_error( $actor ) ) {
return new WP_Error(
'activitypub_no_remote_profile_found',
__( 'No Profile found or Profile not accessible', 'activitypub' ),
array( 'status' => 401 )
);
}
if ( isset( $actor['publicKey']['publicKeyPem'] ) ) {
return \rtrim( $actor['publicKey']['publicKeyPem'] ); // phpcs:ignore
}
return new WP_Error(
'activitypub_no_remote_key_found',
__( 'No Public-Key found', 'activitypub' ),
array( 'status' => 401 )
);
}
/**
* Gets the signature algorithm from the signature header
*
* @param array $signature_block
*
* @return string The signature algorithm.
*/
public static function get_signature_algorithm( $signature_block ) {
if ( $signature_block['algorithm'] ) {
switch ( $signature_block['algorithm'] ) {
case 'rsa-sha-512':
return 'sha512'; //hs2019 https://datatracker.ietf.org/doc/html/draft-cavage-http-signatures-12
default:
return 'sha256';
}
}
return false;
}
/**
* Parses the Signature header
*
* @param string $signature The signature header.
*
* @return array signature parts
*/
public static function parse_signature_header( $signature ) {
$parsed_header = array();
$matches = array();
if ( \preg_match( '/keyId="(.*?)"/ism', $signature, $matches ) ) {
$parsed_header['keyId'] = trim( $matches[1] );
}
if ( \preg_match( '/created=["|\']*([0-9]*)["|\']*/ism', $signature, $matches ) ) {
$parsed_header['(created)'] = trim( $matches[1] );
}
if ( \preg_match( '/expires=["|\']*([0-9]*)["|\']*/ism', $signature, $matches ) ) {
$parsed_header['(expires)'] = trim( $matches[1] );
}
if ( \preg_match( '/algorithm="(.*?)"/ism', $signature, $matches ) ) {
$parsed_header['algorithm'] = trim( $matches[1] );
}
if ( \preg_match( '/headers="(.*?)"/ism', $signature, $matches ) ) {
$parsed_header['headers'] = \explode( ' ', trim( $matches[1] ) );
}
if ( \preg_match( '/signature="(.*?)"/ism', $signature, $matches ) ) {
$parsed_header['signature'] = \base64_decode( preg_replace( '/\s+/', '', trim( $matches[1] ) ) ); // phpcs:ignore
}
if ( ( $parsed_header['signature'] ) && ( $parsed_header['algorithm'] ) && ( ! $parsed_header['headers'] ) ) {
$parsed_header['headers'] = array( 'date' );
}
return $parsed_header;
}
/**
* Gets the header data from the included pseudo headers
*
* @param array $signed_headers The signed headers.
* @param array $signature_block (pseudo-headers)
* @param array $headers (http headers)
*
* @return string signed headers for comparison
*/
public static function get_signed_data( $signed_headers, $signature_block, $headers ) {
$signed_data = '';
// This also verifies time-based values by returning false if any of these are out of range.
foreach ( $signed_headers as $header ) {
if ( 'host' === $header ) {
if ( isset( $headers['x_original_host'] ) ) {
$signed_data .= $header . ': ' . $headers['x_original_host'][0] . "\n";
continue;
}
}
if ( '(request-target)' === $header ) {
$signed_data .= $header . ': ' . $headers[ $header ][0] . "\n";
continue;
}
if ( str_contains( $header, '-' ) ) {
$signed_data .= $header . ': ' . $headers[ str_replace( '-', '_', $header ) ][0] . "\n";
continue;
}
if ( '(created)' === $header ) {
if ( ! empty( $signature_block['(created)'] ) && \intval( $signature_block['(created)'] ) > \time() ) {
// created in future
return false;
}
if ( ! array_key_exists( '(created)', $headers ) ) {
$signed_data .= $header . ': ' . $signature_block['(created)'] . "\n";
continue;
}
}
if ( '(expires)' === $header ) {
if ( ! empty( $signature_block['(expires)'] ) && \intval( $signature_block['(expires)'] ) < \time() ) {
// expired in past <