| @@ -1,14 +1,5 @@ | ||
| 1 | 1 | <?php |
| 2 | -namespace Activitypub; | |
| 3 | - | |
| 4 | -use Exception; | |
| 5 | -use Activitypub\Signature; | |
| 6 | -use Activitypub\Collection\Users; | |
| 7 | -use Activitypub\Collection\Followers; | |
| 8 | - | |
| 9 | -use function Activitypub\sanitize_url; | |
| 10 | - | |
| 11 | 2 | /** |
| 12 | 3 | * ActivityPub Class |
| 13 | 4 | * |
| 14 | 5 | * @author Matthias Pfefferle |
| @@ -14,400 +5,86 @@ | ||
| 14 | 5 | * @author Matthias Pfefferle |
| 15 | 6 | */ |
| 16 | 7 | class Activitypub { |
| 17 | 8 | /** |
| 18 | - * Initialize the class, registering WordPress hooks. | |
| 19 | - */ | |
| 20 | - public static function init() { | |
| 21 | - \add_filter( 'template_include', array( self::class, 'render_json_template' ), 99 ); | |
| 22 | - \add_filter( 'query_vars', array( self::class, 'add_query_vars' ) ); | |
| 23 | - \add_filter( 'pre_get_avatar_data', array( self::class, 'pre_get_avatar_data' ), 11, 2 ); | |
| 24 | - \add_filter( 'get_comment_link', array( self::class, 'remote_comment_link' ), 11, 3 ); | |
| 25 | - | |
| 26 | - // Add support for ActivityPub to custom post types | |
| 27 | - $post_types = \get_option( 'activitypub_support_post_types', array( 'post', 'page' ) ) ? \get_option( 'activitypub_support_post_types', array( 'post', 'page' ) ) : array(); | |
| 28 | - | |
| 29 | - foreach ( $post_types as $post_type ) { | |
| 30 | - \add_post_type_support( $post_type, 'activitypub' ); | |
| 31 | - } | |
| 32 | - | |
| 33 | - \add_action( 'wp_trash_post', array( self::class, 'trash_post' ), 1 ); | |
| 34 | - \add_action( 'untrash_post', array( self::class, 'untrash_post' ), 1 ); | |
| 35 | - | |
| 36 | - \add_action( 'init', array( self::class, 'add_rewrite_rules' ), 11 ); | |
| 37 | - | |
| 38 | - \add_action( 'after_setup_theme', array( self::class, 'theme_compat' ), 99 ); | |
| 39 | - | |
| 40 | - \add_action( 'in_plugin_update_message-' . ACTIVITYPUB_PLUGIN_BASENAME, array( self::class, 'plugin_update_message' ) ); | |
| 41 | - | |
| 42 | - // register several post_types | |
| 43 | - self::register_post_types(); | |
| 44 | - } | |
| 45 | - | |
| 46 | - /** | |
| 47 | - * Activation Hook | |
| 9 | + * Return a AS2 JSON version of an author, post or page | |
| 48 | 10 | * |
| 49 | - * @return void | |
| 50 | - */ | |
| 51 | - public static function activate() { | |
| 52 | - self::flush_rewrite_rules(); | |
| 53 | - | |
| 54 | - Scheduler::register_schedules(); | |
| 55 | - } | |
| 56 | - | |
| 57 | - /** | |
| 58 | - * Deactivation Hook | |
| 11 | + * @param string $template the path to the template object | |
| 59 | 12 | * |
| 60 | - * @return void | |
| 13 | + * @return string the new path to the JSON template | |
| 61 | 14 | */ |
| 62 | - public static function deactivate() { | |
| 63 | - self::flush_rewrite_rules(); | |
| 64 | - Scheduler::deregister_schedules(); | |
| 65 | - } | |
| 66 | - | |
| 67 | - /** | |
| 68 | - * Uninstall Hook | |
| 69 | - * | |
| 70 | - * @return void | |
| 71 | - */ | |
| 72 | - public static function uninstall() { | |
| 73 | - Scheduler::deregister_schedules(); | |
| 74 | - } | |
| 75 | - | |
| 76 | - /** | |
| 77 | - * Return a AS2 JSON version of an author, post or page. | |
| 78 | - * | |
| 79 | - * @param string $template The path to the template object. | |
| 80 | - * | |
| 81 | - * @return string The new path to the JSON template. | |
| 82 | - */ | |
| 83 | 15 | public static function render_json_template( $template ) { |
| 84 | - if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) { | |
| 16 | + if ( ! is_author() && ! is_singular() ) { | |
| 85 | 17 | return $template; |
| 86 | 18 | } |
| 87 | 19 | |
| 88 | - if ( ! is_activitypub_request() ) { | |
| 89 | - return $template; | |
| 20 | + if ( is_author() ) { | |
| 21 | + $json_template = dirname( __FILE__ ) . '/../templates/json-author.php'; | |
| 22 | + } elseif ( is_singular() ) { | |
| 23 | + $json_template = dirname( __FILE__ ) . '/../templates/json-post.php'; | |
| 90 | 24 | } |
| 91 | 25 | |
| 92 | - $json_template = false; | |
| 26 | + global $wp_query; | |
| 93 | 27 | |
| 94 | - // check if user can publish posts | |
| 95 | - if ( \is_author() && is_wp_error( Users::get_by_id( \get_the_author_meta( 'ID' ) ) ) ) { | |
| 96 | - return $template; | |
| 28 | + if ( isset( $wp_query->query_vars['as2'] ) ) { | |
| 29 | + return $json_template; | |
| 97 | 30 | } |
| 98 | 31 | |
| 99 | - if ( \is_author() ) { | |
| 100 | - $json_template = ACTIVITYPUB_PLUGIN_DIR . '/templates/author-json.php'; | |
| 101 | - } elseif ( \is_singular() ) { | |
| 102 | - $json_template = ACTIVITYPUB_PLUGIN_DIR . '/templates/post-json.php'; | |
| 103 | - } elseif ( \is_home() ) { | |
| 104 | - $json_template = ACTIVITYPUB_PLUGIN_DIR . '/templates/blog-json.php'; | |
| 32 | + if ( ! isset( $_SERVER['HTTP_ACCEPT'] ) ) { | |
| 33 | + return $template; | |
| 105 | 34 | } |
| 106 | 35 | |
| 107 | - if ( ACTIVITYPUB_AUTHORIZED_FETCH ) { | |
| 108 | - $verification = Signature::verify_http_signature( $_SERVER ); | |
| 109 | - if ( \is_wp_error( $verification ) ) { | |
| 110 | - // fallback as template_loader can't return http headers | |
| 111 | - return $template; | |
| 112 | - } | |
| 36 | + // interpret accept header | |
| 37 | + $pos = stripos( $_SERVER['HTTP_ACCEPT'], ';' ); | |
| 38 | + if ( $pos ) { | |
| 39 | + $accept_header = substr( $_SERVER['HTTP_ACCEPT'], 0, $pos ); | |
| 40 | + } else { | |
| 41 | + $accept_header = $_SERVER['HTTP_ACCEPT']; | |
| 113 | 42 | } |
| 43 | + // accept header as an array | |
| 44 | + $accept = explode( ',', trim( $accept_header ) ); | |
| 114 | 45 | |
| 115 | - return $json_template; | |
| 116 | - } | |
| 117 | - | |
| 118 | - /** | |
| 119 | - * Add the 'activitypub' query variable so WordPress won't mangle it. | |
| 120 | - */ | |
| 121 | - public static function add_query_vars( $vars ) { | |
| 122 | - $vars[] = 'activitypub'; | |
| 123 | - | |
| 124 | - return $vars; | |
| 125 | - } | |
| 126 | - | |
| 127 | - /** | |
| 128 | - * Replaces the default avatar. | |
| 129 | - * | |
| 130 | - * @param array $args Arguments passed to get_avatar_data(), after processing. | |
| 131 | - * @param int|string|object $id_or_email A user ID, email address, or comment object. | |
| 132 | - * | |
| 133 | - * @return array $args | |
| 134 | - */ | |
| 135 | - public static function pre_get_avatar_data( $args, $id_or_email ) { | |
| 136 | 46 | if ( |
| 137 | - ! $id_or_email instanceof \WP_Comment || | |
| 138 | - ! isset( $id_or_email->comment_type ) || | |
| 139 | - $id_or_email->user_id | |
| 47 | + ! in_array( 'application/activity+json', $accept, true ) && | |
| 48 | + ! in_array( 'application/ld+json', $accept, true ) && | |
| 49 | + ! in_array( 'application/json', $accept, true ) | |
| 140 | 50 | ) { |
| 141 | - return $args; | |
| 51 | + return $template; | |
| 142 | 52 | } |
| 143 | 53 | |
| 144 | - $allowed_comment_types = \apply_filters( 'get_avatar_comment_types', array( 'comment' ) ); | |
| 145 | - if ( | |
| 146 | - ! empty( $id_or_email->comment_type ) && | |
| 147 | - ! \in_array( | |
| 148 | - $id_or_email->comment_type, | |
| 149 | - (array) $allowed_comment_types, | |
| 150 | - true | |
| 151 | - ) | |
| 152 | - ) { | |
| 153 | - $args['url'] = false; | |
| 154 | - /** This filter is documented in wp-includes/link-template.php */ | |
| 155 | - return \apply_filters( 'get_avatar_data', $args, $id_or_email ); | |
| 156 | - } | |
| 157 | - | |
| 158 | - // Check if comment has an avatar. | |
| 159 | - $avatar = self::get_avatar_url( $id_or_email->comment_ID ); | |
| 160 | - | |
| 161 | - if ( $avatar ) { | |
| 162 | - if ( ! isset( $args['class'] ) || ! \is_array( $args['class'] ) ) { | |
| 163 | - $args['class'] = array( 'u-photo' ); | |
| 164 | - } else { | |
| 165 | - $args['class'][] = 'u-photo'; | |
| 166 | - $args['class'] = \array_unique( $args['class'] ); | |
| 167 | - } | |
| 168 | - $args['url'] = $avatar; | |
| 169 | - $args['class'][] = 'avatar-activitypub'; | |
| 170 | - } | |
| 171 | - | |
| 172 | - return $args; | |
| 54 | + return $json_template; | |
| 173 | 55 | } |
| 174 | 56 | |
| 175 | 57 | /** |
| 176 | - * Function to retrieve Avatar URL if stored in meta. | |
| 58 | + * Add WebFinger discovery links | |
| 177 | 59 | * |
| 178 | - * @param int|WP_Comment $comment | |
| 179 | - * | |
| 180 | - * @return string $url | |
| 60 | + * @param array $array the jrd array | |
| 61 | + * @param string $resource the WebFinger resource | |
| 62 | + * @param WP_User $user the WordPress user | |
| 181 | 63 | */ |
| 182 | - public static function get_avatar_url( $comment ) { | |
| 183 | - if ( \is_numeric( $comment ) ) { | |
| 184 | - $comment = \get_comment( $comment ); | |
| 185 | - } | |
| 186 | - return \get_comment_meta( $comment->comment_ID, 'avatar_url', true ); | |
| 187 | - } | |
| 188 | - | |
| 189 | - /** | |
| 190 | - * Link remote comments to source url. | |
| 191 | - * | |
| 192 | - * @param string $comment_link | |
| 193 | - * @param object|WP_Comment $comment | |
| 194 | - * | |
| 195 | - * @return string $url | |
| 196 | - */ | |
| 197 | - public static function remote_comment_link( $comment_link, $comment ) { | |
| 198 | - $remote_comment_link = get_comment_meta( $comment->comment_ID, 'source_url', true ); | |
| 199 | - if ( $remote_comment_link ) { | |
| 200 | - $comment_link = esc_url( $remote_comment_link ); | |
| 201 | - } | |
| 202 | - return $comment_link; | |
| 203 | - } | |
| 204 | - | |
| 205 | - /** | |
| 206 | - * Store permalink in meta, to send delete Activity. | |
| 207 | - * | |
| 208 | - * @param string $post_id The Post ID. | |
| 209 | - * | |
| 210 | - * @return void | |
| 211 | - */ | |
| 212 | - public static function trash_post( $post_id ) { | |
| 213 | - \add_post_meta( | |
| 214 | - $post_id, | |
| 215 | - 'activitypub_canonical_url', | |
| 216 | - \get_permalink( $post_id ), | |
| 217 | - true | |
| 64 | + public static function add_webfinger_discovery( $array, $resource, $user ) { | |
| 65 | + $array['links'][] = array( | |
| 66 | + 'rel' => 'self', | |
| 67 | + 'type' => 'application/activity+json', | |
| 68 | + 'href' => get_author_posts_url( $user->ID ), | |
| 218 | 69 | ); |
| 219 | - } | |
| 220 | 70 | |
| 221 | - /** | |
| 222 | - * Delete permalink from meta | |
| 223 | - * | |
| 224 | - * @param string $post_id The Post ID | |
| 225 | - * | |
| 226 | - * @return void | |
| 227 | - */ | |
| 228 | - public static function untrash_post( $post_id ) { | |
| 229 | - \delete_post_meta( $post_id, 'activitypub_canonical_url' ); | |
| 71 | + return $array; | |
| 230 | 72 | } |
| 231 | 73 | |
| 232 | 74 | /** |
| 233 | - * Add rewrite rules | |
| 75 | + * Add the 'photos' query variable so WordPress | |
| 76 | + * won't mangle it. | |
| 234 | 77 | */ |
| 235 | - public static function add_rewrite_rules() { | |
| 236 | - // If another system needs to take precedence over the ActivityPub rewrite rules, | |
| 237 | - // they can define their own and will manually call the appropriate functions as required. | |
| 238 | - if ( ACTIVITYPUB_DISABLE_REWRITES ) { | |
| 239 | - return; | |
| 240 | - } | |
| 78 | + public static function add_query_vars( $vars ) { | |
| 79 | + $vars[] = 'as2'; | |
| 241 | 80 | |
| 242 | - if ( ! \class_exists( 'Webfinger' ) ) { | |
| 243 | - \add_rewrite_rule( | |
| 244 | - '^.well-known/webfinger', | |
| 245 | - 'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/webfinger', | |
| 246 | - 'top' | |
| 247 | - ); | |
| 248 | - } | |
| 249 | - | |
| 250 | - if ( ! \class_exists( 'Nodeinfo_Endpoint' ) && true === (bool) \get_option( 'blog_public', 1 ) ) { | |
| 251 | - \add_rewrite_rule( | |
| 252 | - '^.well-known/nodeinfo', | |
| 253 | - 'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/nodeinfo/discovery', | |
| 254 | - 'top' | |
| 255 | - ); | |
| 256 | - \add_rewrite_rule( | |
| 257 | - '^.well-known/x-nodeinfo2', | |
| 258 | - 'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/nodeinfo2', | |
| 259 | - 'top' | |
| 260 | - ); | |
| 261 | - } | |
| 262 | - | |
| 263 | - \add_rewrite_rule( | |
| 264 | - '^@([\w\-\.]+)', | |
| 265 | - 'index.php?rest_route=/' . ACTIVITYPUB_REST_NAMESPACE . '/users/$matches[1]', | |
| 266 | - 'top' | |
| 267 | - ); | |
| 268 | - | |
| 269 | - \add_rewrite_endpoint( 'activitypub', EP_AUTHORS | EP_PERMALINK | EP_PAGES ); | |
| 81 | + return $vars; | |
| 270 | 82 | } |
| 271 | 83 | |
| 272 | 84 | /** |
| 273 | - * Flush rewrite rules; | |
| 85 | + * Add our rewrite endpoint to permalinks and pages. | |
| 274 | 86 | */ |
| 275 | - public static function flush_rewrite_rules() { | |
| 276 | - self::add_rewrite_rules(); | |
| 277 | - \flush_rewrite_rules(); | |
| 278 | - } | |
| 279 | - | |
| 280 | - /** | |
| 281 | - * Theme compatibility stuff | |
| 282 | - * | |
| 283 | - * @return void | |
| 284 | - */ | |
| 285 | - public static function theme_compat() { | |
| 286 | - $site_icon = get_theme_support( 'custom-logo' ); | |
| 287 | - | |
| 288 | - if ( ! $site_icon ) { | |
| 289 | - // custom logo support | |
| 290 | - add_theme_support( | |
| 291 | - 'custom-logo', | |
| 292 | - array( | |
| 293 | - 'height' => 80, | |
| 294 | - 'width' => 80, | |
| 295 | - ) | |
| 296 | - ); | |
| 297 | - } | |
| 298 | - | |
| 299 | - $custom_header = get_theme_support( 'custom-header' ); | |
| 300 | - | |
| 301 | - if ( ! $custom_header ) { | |
| 302 | - // This theme supports a custom header | |
| 303 | - $custom_header_args = array( | |
| 304 | - 'width' => 1250, | |
| 305 | - 'height' => 600, | |
| 306 | - 'header-text' => true, | |
| 307 | - ); | |
| 308 | - add_theme_support( 'custom-header', $custom_header_args ); | |
| 309 | - } | |
| 310 | - } | |
| 311 | - | |
| 312 | - /** | |
| 313 | - * Display plugin upgrade notice to users | |
| 314 | - * | |
| 315 | - * @param array $data The plugin data | |
| 316 | - * | |
| 317 | - * @return void | |
| 318 | - */ | |
| 319 | - public static function plugin_update_message( $data ) { | |
| 320 | - if ( ! isset( $data['upgrade_notice'] ) ) { | |
| 321 | - return; | |
| 322 | - } | |
| 323 | - | |
| 324 | - printf( | |
| 325 | - '<div class="update-message">%s</div>', | |
| 326 | - wp_kses( | |
| 327 | - wpautop( $data['upgrade_notice '] ), | |
| 328 | - array( | |
| 329 | - 'p' => array(), | |
| 330 | - 'a' => array( 'href', 'title' ), | |
| 331 | - 'strong' => array(), | |
| 332 | - 'em' => array(), | |
| 333 | - ) | |
| 334 | - ) | |
| 335 | - ); | |
| 336 | - } | |
| 337 | - | |
| 338 | - /** | |
| 339 | - * Register the "Followers" Taxonomy | |
| 340 | - * | |
| 341 | - * @return void | |
| 342 | - */ | |
| 343 | - private static function register_post_types() { | |
| 344 | - register_post_type( | |
| 345 | - Followers::POST_TYPE, | |
| 346 | - array( | |
| 347 | - 'labels' => array( | |
| 348 | - 'name' => _x( 'Followers', 'post_type plural name', 'activitypub' ), | |
| 349 | - 'singular_name' => _x( 'Follower', 'post_type single name', 'activitypub' ), | |
| 350 | - ), | |
| 351 | - 'public' => false, | |
| 352 | - 'hierarchical' => false, | |
| 353 | - 'rewrite' => false, | |
| 354 | - 'query_var' => false, | |
| 355 | - 'delete_with_user' => false, | |
| 356 | - 'can_export' => true, | |
| 357 | - 'supports' => array(), | |
| 358 | - ) | |
| 359 | - ); | |
| 360 | - | |
| 361 | - register_post_meta( | |
| 362 | - Followers::POST_TYPE, | |
| 363 | - 'activitypub_inbox', | |
| 364 | - array( | |
| 365 | - 'type' => 'string', | |
| 366 | - 'single' => true, | |
| 367 | - 'sanitize_callback' => 'sanitize_url', | |
| 368 | - ) | |
| 369 | - ); | |
| 370 | - | |
| 371 | - register_post_meta( | |
| 372 | - Followers::POST_TYPE, | |
| 373 | - 'activitypub_errors', | |
| 374 | - array( | |
| 375 | - 'type' => 'string', | |
| 376 | - 'single' => false, | |
| 377 | - 'sanitize_callback' => function( $value ) { | |
| 378 | - if ( ! is_string( $value ) ) { | |
| 379 | - throw new Exception( 'Error message is no valid string' ); | |
| 380 | - } | |
| 381 | - | |
| 382 | - return esc_sql( $value ); | |
| 383 | - }, | |
| 384 | - ) | |
| 385 | - ); | |
| 386 | - | |
| 387 | - register_post_meta( | |
| 388 | - Followers::POST_TYPE, | |
| 389 | - 'activitypub_user_id', | |
| 390 | - array( | |
| 391 | - 'type' => 'string', | |
| 392 | - 'single' => false, | |
| 393 | - 'sanitize_callback' => function( $value ) { | |
| 394 | - return esc_sql( $value ); | |
| 395 | - }, | |
| 396 | - ) | |
| 397 | - ); | |
| 398 | - | |
| 399 | - register_post_meta( | |
| 400 | - Followers::POST_TYPE, | |
| 401 | - 'activitypub_actor_json', | |
| 402 | - array( | |
| 403 | - 'type' => 'string', | |
| 404 | - 'single' => true, | |
| 405 | - 'sanitize_callback' => function( $value ) { | |
| 406 | - return sanitize_text_field( $value ); | |
| 407 | - }, | |
| 408 | - ) | |
| 409 | - ); | |
| 410 | - | |
| 411 | - do_action( 'activitypub_after_register_post_type' ); | |
| 87 | + public static function add_rewrite_endpoint() { | |
| 88 | + add_rewrite_endpoint( 'as2', EP_AUTHORS | EP_PERMALINK | EP_PAGES ); | |
| 412 | 89 | } |
| 413 | 90 | } |
