| @@ -1,66 +1,62 @@ | ||
| 1 | 1 | <?php |
| 2 | -/** | |
| 3 | - * Delete handler file. | |
| 4 | - * | |
| 5 | - * @package Activitypub | |
| 6 | - */ | |
| 7 | - | |
| 8 | 2 | namespace Activitypub\Handler; |
| 9 | 3 | |
| 4 | +use WP_Error; | |
| 5 | +use WP_REST_Request; | |
| 6 | +use Activitypub\Http; | |
| 7 | +use Activitypub\Collection\Followers; | |
| 10 | 8 | use Activitypub\Collection\Interactions; |
| 11 | -use Activitypub\Collection\Remote_Actors; | |
| 12 | -use Activitypub\Collection\Remote_Posts; | |
| 13 | -use Activitypub\Tombstone; | |
| 14 | 9 | |
| 15 | -use function Activitypub\object_to_uri; | |
| 16 | - | |
| 17 | 10 | /** |
| 18 | 11 | * Handles Delete requests. |
| 19 | 12 | */ |
| 20 | 13 | class Delete { |
| 21 | 14 | /** |
| 22 | - * Initialize the class, registering WordPress hooks. | |
| 15 | + * Initialize the class, registering WordPress hooks | |
| 23 | 16 | */ |
| 24 | 17 | public static function init() { |
| 25 | - \add_action( 'activitypub_inbox_delete', array( self::class, 'handle_delete' ), 10, 2 ); | |
| 26 | - \add_filter( 'activitypub_skip_inbox_storage', array( self::class, 'skip_inbox_storage' ), 10, 2 ); | |
| 27 | - \add_filter( 'activitypub_defer_signature_verification', array( self::class, 'defer_signature_verification' ), 10, 3 ); | |
| 28 | - \add_action( 'activitypub_delete_remote_actor_interactions', array( self::class, 'delete_interactions' ) ); | |
| 29 | - \add_action( 'activitypub_delete_remote_actor_posts', array( self::class, 'delete_posts' ) ); | |
| 18 | + \add_action( | |
| 19 | + 'activitypub_inbox_delete', | |
| 20 | + array( self::class, 'handle_delete' ) | |
| 21 | + ); | |
| 30 | 22 | |
| 31 | - \add_filter( 'activitypub_get_outbox_activity', array( self::class, 'outbox_activity' ) ); | |
| 32 | - \add_action( 'post_activitypub_add_to_outbox', array( self::class, 'maybe_bury' ), 10, 2 ); | |
| 23 | + // defer signature verification for `Delete` requests. | |
| 24 | + \add_filter( | |
| 25 | + 'activitypub_defer_signature_verification', | |
| 26 | + array( self::class, 'defer_signature_verification' ), | |
| 27 | + 10, | |
| 28 | + 2 | |
| 29 | + ); | |
| 30 | + | |
| 31 | + // side effect | |
| 32 | + \add_action( | |
| 33 | + 'activitypub_delete_actor_interactions', | |
| 34 | + array( self::class, 'delete_interactions' ) | |
| 35 | + ); | |
| 33 | 36 | } |
| 34 | 37 | |
| 35 | 38 | /** |
| 36 | 39 | * Handles "Delete" requests. |
| 37 | 40 | * |
| 38 | - * @param array $activity The delete activity. | |
| 39 | - * @param int|int[] $user_ids The local user ID(s). | |
| 41 | + * @param array $activity The delete activity. | |
| 42 | + * @param int $user_id The ID of the user performing the delete activity. | |
| 40 | 43 | */ |
| 41 | - public static function handle_delete( $activity, $user_ids ) { | |
| 42 | - $object_type = $activity['object']['type'] ?? ''; | |
| 44 | + public static function handle_delete( $activity ) { | |
| 45 | + $object_type = isset( $activity['object']['type'] ) ? $activity['object']['type'] : ''; | |
| 43 | 46 | |
| 44 | 47 | switch ( $object_type ) { |
| 45 | - /* | |
| 46 | - * Actor Types. | |
| 47 | - * | |
| 48 | - * @see https://www.w3.org/TR/activitystreams-vocabulary/#actor-types | |
| 49 | - */ | |
| 48 | + // Actor Types | |
| 49 | + // @see https://www.w3.org/TR/activitystreams-vocabulary/#actor-types | |
| 50 | 50 | case 'Person': |
| 51 | 51 | case 'Group': |
| 52 | 52 | case 'Organization': |
| 53 | 53 | case 'Service': |
| 54 | 54 | case 'Application': |
| 55 | - self::delete_remote_actor( $activity, $user_ids ); | |
| 55 | + self::maybe_delete_follower( $activity ); | |
| 56 | 56 | break; |
| 57 | - | |
| 58 | - /* | |
| 59 | - * Object and Link Types. | |
| 60 | - * | |
| 61 | - * @see https://www.w3.org/TR/activitystreams-vocabulary/#object-types | |
| 62 | - */ | |
| 57 | + // Object and Link Types | |
| 58 | + // @see https://www.w3.org/TR/activitystreams-vocabulary/#object-types | |
| 63 | 59 | case 'Note': |
| 64 | 60 | case 'Article': |
| 65 | 61 | case 'Image': |
| 66 | 62 | case 'Audio': |
| @@ -66,258 +62,112 @@ | ||
| 66 | 62 | case 'Audio': |
| 67 | 63 | case 'Video': |
| 68 | 64 | case 'Event': |
| 69 | 65 | case 'Document': |
| 70 | - self::delete_object( $activity, $user_ids ); | |
| 66 | + self::maybe_delete_interaction( $activity ); | |
| 71 | 67 | break; |
| 72 | - | |
| 73 | - /* | |
| 74 | - * Tombstone Type. | |
| 75 | - * | |
| 76 | - * @see: https://www.w3.org/TR/activitystreams-vocabulary/#dfn-tombstone | |
| 77 | - */ | |
| 68 | + // Tombstone Type | |
| 69 | + // @see: https://www.w3.org/TR/activitystreams-vocabulary/#dfn-tombstone | |
| 78 | 70 | case 'Tombstone': |
| 79 | - self::delete_object( $activity, $user_ids ); | |
| 71 | + self::maybe_delete_interaction( $activity ); | |
| 80 | 72 | break; |
| 73 | + // Minimal Activity | |
| 74 | + // @see https://www.w3.org/TR/activitystreams-core/#example-1 | |
| 75 | + default: | |
| 76 | + // ignore non Minimal Activities. | |
| 77 | + if ( ! is_string( $activity['object'] ) ) { | |
| 78 | + return; | |
| 79 | + } | |
| 81 | 80 | |
| 82 | - /* | |
| 83 | - * Minimal Activity. | |
| 84 | - * | |
| 85 | - * @see https://www.w3.org/TR/activitystreams-core/#example-1 | |
| 86 | - */ | |
| 87 | - default: | |
| 88 | - // Check if Object is an Actor. | |
| 89 | - if ( object_to_uri( $activity['object'] ) === $activity['actor'] ) { | |
| 90 | - self::delete_remote_actor( $activity, $user_ids ); | |
| 91 | - } else { // Assume an object otherwise. | |
| 92 | - self::delete_object( $activity, $user_ids ); | |
| 81 | + // check if Object is an Actor. | |
| 82 | + if ( $activity['actor'] === $activity['object'] ) { | |
| 83 | + self::maybe_delete_follower( $activity ); | |
| 84 | + } else { // assume a interaction otherwise. | |
| 85 | + self::maybe_delete_interaction( $activity ); | |
| 93 | 86 | } |
| 94 | - // Maybe handle Delete Activity for other Object Types. | |
| 87 | + // maybe handle Delete Activity for other Object Types. | |
| 95 | 88 | break; |
| 96 | 89 | } |
| 97 | 90 | } |
| 98 | 91 | |
| 99 | 92 | /** |
| 100 | - * Delete an Object. | |
| 101 | - * | |
| 102 | - * @param array $activity The Activity object. | |
| 103 | - * @param int|int[] $user_ids The user ID(s). | |
| 104 | - */ | |
| 105 | - public static function delete_object( $activity, $user_ids ) { | |
| 106 | - $result = self::maybe_delete_interaction( $activity ); | |
| 107 | - | |
| 108 | - if ( ! $result ) { | |
| 109 | - $result = self::maybe_delete_post( $activity ); | |
| 110 | - } | |
| 111 | - | |
| 112 | - $success = ( $result && ! \is_wp_error( $result ) ); | |
| 113 | - | |
| 114 | - /** | |
| 115 | - * Fires after an ActivityPub Delete activity has been handled. | |
| 116 | - * | |
| 117 | - * @param array $activity The ActivityPub activity data. | |
| 118 | - * @param int[] $user_ids The local user IDs. | |
| 119 | - * @param bool $success True on success, false otherwise. | |
| 120 | - * @param mixed|null $result The result of the delete operation. | |
| 121 | - */ | |
| 122 | - \do_action( 'activitypub_handled_delete', $activity, (array) $user_ids, $success, $result ); | |
| 123 | - } | |
| 124 | - | |
| 125 | - /** | |
| 126 | - * Delete an Actor. | |
| 127 | - * | |
| 128 | - * @param array $activity The Activity object. | |
| 129 | - * @param int|int[] $user_ids The user ID(s). | |
| 130 | - */ | |
| 131 | - public static function delete_remote_actor( $activity, $user_ids ) { | |
| 132 | - $result = self::maybe_delete_follower( $activity ); | |
| 133 | - $success = ( $result && ! \is_wp_error( $result ) ); | |
| 134 | - | |
| 135 | - /** | |
| 136 | - * Fires after an ActivityPub Delete activity has been handled. | |
| 137 | - * | |
| 138 | - * @param array $activity The ActivityPub activity data. | |
| 139 | - * @param int[] $user_ids The local user IDs. | |
| 140 | - * @param bool $success True on success, false otherwise. | |
| 141 | - * @param mixed|null $result The result of the delete operation. | |
| 142 | - */ | |
| 143 | - \do_action( 'activitypub_handled_delete', $activity, (array) $user_ids, $success, $result ); | |
| 144 | - | |
| 145 | - return $result; | |
| 146 | - } | |
| 147 | - | |
| 148 | - /** | |
| 149 | 93 | * Delete a Follower if Actor-URL is a Tombstone. |
| 150 | 94 | * |
| 151 | 95 | * @param array $activity The delete activity. |
| 152 | - * | |
| 153 | - * @return bool True on success, false otherwise. | |
| 154 | 96 | */ |
| 155 | 97 | public static function maybe_delete_follower( $activity ) { |
| 156 | - $follower = Remote_Actors::get_by_uri( $activity['actor'] ); | |
| 98 | + $follower = Followers::get_follower_by_actor( $activity['actor'] ); | |
| 157 | 99 | |
| 158 | - // Verify that Actor is deleted. | |
| 159 | - if ( ! \is_wp_error( $follower ) && Tombstone::exists( $activity['actor'] ) ) { | |
| 160 | - self::maybe_delete_interactions( $follower->ID ); | |
| 161 | - self::maybe_delete_posts( $follower->ID ); | |
| 162 | - $state = Remote_Actors::delete( $follower->ID ); | |
| 100 | + // verify if Actor is deleted. | |
| 101 | + if ( $follower && Http::is_tombstone( $activity['actor'] ) ) { | |
| 102 | + $follower->delete(); | |
| 103 | + self::maybe_delete_interactions( $activity ); | |
| 163 | 104 | } |
| 164 | - | |
| 165 | - return $state ?? false; | |
| 166 | 105 | } |
| 167 | 106 | |
| 168 | 107 | /** |
| 169 | - * Schedule Deletion of Interactions of a Remote Actor. | |
| 108 | + * Delete Reactions if Actor-URL is a Tombstone. | |
| 170 | 109 | * |
| 171 | - * @param int $id The remote actor ID. | |
| 110 | + * @param array $activity The delete activity. | |
| 172 | 111 | */ |
| 173 | - public static function maybe_delete_interactions( $id ) { | |
| 174 | - \wp_schedule_single_event( | |
| 175 | - \time(), | |
| 176 | - 'activitypub_delete_remote_actor_interactions', | |
| 177 | - array( $id ) | |
| 178 | - ); | |
| 179 | - } | |
| 180 | - | |
| 181 | - /** | |
| 182 | - * Schedule Deletion of Reader Items of a Remote Actor. | |
| 183 | - * | |
| 184 | - * @param int $id The remote actor ID. | |
| 185 | - */ | |
| 186 | - public static function maybe_delete_posts( $id ) { | |
| 187 | - \wp_schedule_single_event( | |
| 188 | - \time(), | |
| 189 | - 'activitypub_delete_remote_actor_posts', | |
| 190 | - array( $id ) | |
| 191 | - ); | |
| 192 | - } | |
| 193 | - | |
| 194 | - /** | |
| 195 | - * Delete Interactions from a Remote Actor. | |
| 196 | - * | |
| 197 | - * @param int $id The ID of the actor whose comments to delete. | |
| 198 | - * | |
| 199 | - * @return bool True on success, false otherwise. | |
| 200 | - */ | |
| 201 | - public static function delete_interactions( $id ) { | |
| 202 | - $comments = Interactions::get_by_remote_actor_id( $id ); | |
| 203 | - | |
| 204 | - foreach ( $comments as $comment ) { | |
| 205 | - \wp_delete_comment( $comment, true ); | |
| 112 | + public static function maybe_delete_interactions( $activity ) { | |
| 113 | + // verify if Actor is deleted. | |
| 114 | + if ( Http::is_tombstone( $activity['actor'] ) ) { | |
| 115 | + \wp_schedule_single_event( | |
| 116 | + \time(), | |
| 117 | + 'activitypub_delete_actor_interactions', | |
| 118 | + array( $activity['actor'] ) | |
| 119 | + ); | |
| 206 | 120 | } |
| 207 | - | |
| 208 | - if ( $comments ) { | |
| 209 | - return true; | |
| 210 | - } else { | |
| 211 | - return false; | |
| 212 | - } | |
| 213 | 121 | } |
| 214 | 122 | |
| 215 | 123 | /** |
| 216 | - * Delete Reader Items from an Actor. | |
| 124 | + * Delete comments from an Actor. | |
| 217 | 125 | * |
| 218 | - * @param int $id The ID of the actor whose comments to delete. | |
| 219 | - * | |
| 220 | - * @return bool True on success, false otherwise. | |
| 126 | + * @param array $comments The comments to delete. | |
| 221 | 127 | */ |
| 222 | - public static function delete_posts( $id ) { | |
| 223 | - $posts = Remote_Posts::get_by_remote_actor_id( $id ); | |
| 128 | + public static function delete_interactions( $actor ) { | |
| 129 | + $comments = Interactions::get_interactions_by_actor( $actor ); | |
| 224 | 130 | |
| 225 | - foreach ( $posts as $post ) { | |
| 226 | - Remote_Posts::delete( $post->ID ); | |
| 131 | + if ( is_array( $comments ) ) { | |
| 132 | + foreach ( $comments as $comment ) { | |
| 133 | + wp_delete_comment( $comment->comment_ID ); | |
| 134 | + } | |
| 227 | 135 | } |
| 228 | - | |
| 229 | - if ( $posts ) { | |
| 230 | - return true; | |
| 231 | - } else { | |
| 232 | - return false; | |
| 233 | - } | |
| 234 | 136 | } |
| 235 | 137 | |
| 236 | 138 | /** |
| 237 | 139 | * Delete a Reaction if URL is a Tombstone. |
| 238 | 140 | * |
| 239 | - * Note: When comments are deleted, WordPress automatically deletes all associated | |
| 240 | - * comment meta including _activitypub_remote_actor_id. The remote actor post itself | |
| 241 | - * is not deleted, as it may be referenced by other comments or may be needed for | |
| 242 | - * future interactions. | |
| 243 | - * | |
| 244 | 141 | * @param array $activity The delete activity. |
| 245 | 142 | * |
| 246 | - * @return bool True on success, false otherwise. | |
| 143 | + * @return void | |
| 247 | 144 | */ |
| 248 | 145 | public static function maybe_delete_interaction( $activity ) { |
| 249 | - $id = object_to_uri( $activity['object'] ); | |
| 250 | - $comments = Interactions::get_by_id( $id ); | |
| 146 | + if ( is_array( $activity['object'] ) ) { | |
| 147 | + $id = $activity['object']['id']; | |
| 148 | + } else { | |
| 149 | + $id = $activity['object']; | |
| 150 | + } | |
| 251 | 151 | |
| 252 | - if ( $comments && Tombstone::exists( $id ) ) { | |
| 152 | + $comments = Interactions::get_interaction_by_id( $id ); | |
| 153 | + | |
| 154 | + if ( $comments && Http::is_tombstone( $id ) ) { | |
| 253 | 155 | foreach ( $comments as $comment ) { |
| 254 | - // WordPress will automatically delete all comment meta including _activitypub_remote_actor_id. | |
| 255 | - \wp_delete_comment( $comment->comment_ID, true ); | |
| 156 | + wp_delete_comment( $comment->comment_ID, true ); | |
| 256 | 157 | } |
| 257 | - | |
| 258 | - return true; | |
| 259 | 158 | } |
| 260 | - | |
| 261 | - return false; | |
| 262 | 159 | } |
| 263 | 160 | |
| 264 | 161 | /** |
| 265 | - * Delete a post from the Posts collection. | |
| 266 | - * | |
| 267 | - * @param array $activity The delete activity. | |
| 268 | - * | |
| 269 | - * @return bool|\WP_Error True on success, false or WP_Error on failure. | |
| 270 | - */ | |
| 271 | - public static function maybe_delete_post( $activity ) { | |
| 272 | - $id = object_to_uri( $activity['object'] ); | |
| 273 | - | |
| 274 | - // Check if the object exists and is a tombstone. | |
| 275 | - if ( Tombstone::exists( $id ) ) { | |
| 276 | - return Remote_Posts::delete_by_guid( $id ); | |
| 277 | - } | |
| 278 | - | |
| 279 | - return false; | |
| 280 | - } | |
| 281 | - | |
| 282 | - /** | |
| 283 | - * Skip inbox storage for `Delete` requests. | |
| 284 | - * | |
| 285 | - * @param bool $skip Whether to skip inbox storage. | |
| 286 | - * @param array $data The activity data array. | |
| 287 | - * | |
| 288 | - * @return bool Whether to skip inbox storage. | |
| 289 | - */ | |
| 290 | - public static function skip_inbox_storage( $skip, $data ) { | |
| 291 | - if ( isset( $data['type'] ) && 'Delete' === $data['type'] ) { | |
| 292 | - return true; | |
| 293 | - } | |
| 294 | - | |
| 295 | - return $skip; | |
| 296 | - } | |
| 297 | - | |
| 298 | - /** | |
| 299 | 162 | * Defer signature verification for `Delete` requests. |
| 300 | 163 | * |
| 301 | - * Endpoints that opt in to mandatory signing by calling | |
| 302 | - * `verify_signature( $request, true )` must not be overridden — the | |
| 303 | - * Delete carve-out is only for the default inbox path where the | |
| 304 | - * remote actor's keys may legitimately be gone before the Delete | |
| 305 | - * arrives. | |
| 164 | + * @param bool $defer Whether to defer signature verification. | |
| 165 | + * @param WP_REST_Request $request The request object. | |
| 306 | 166 | * |
| 307 | - * @since 8.2.0 The `$force_signature` parameter is now respected. | |
| 308 | - * | |
| 309 | - * @param bool $defer Whether to defer signature verification. | |
| 310 | - * @param \WP_REST_Request $request The request object. | |
| 311 | - * @param bool $force_signature Whether the caller has forced signature verification. | |
| 312 | - * | |
| 313 | 167 | * @return bool Whether to defer signature verification. |
| 314 | 168 | */ |
| 315 | - public static function defer_signature_verification( $defer, $request, $force_signature = false ) { | |
| 316 | - if ( $force_signature ) { | |
| 317 | - return $defer; | |
| 318 | - } | |
| 319 | - | |
| 169 | + public static function defer_signature_verification( $defer, $request ) { | |
| 320 | 170 | $json = $request->get_json_params(); |
| 321 | 171 | |
| 322 | 172 | if ( isset( $json['type'] ) && 'Delete' === $json['type'] ) { |
| 323 | 173 | return true; |
| @@ -322,46 +172,7 @@ | ||
| 322 | 172 | if ( isset( $json['type'] ) && 'Delete' === $json['type'] ) { |
| 323 | 173 | return true; |
| 324 | 174 | } |
| 325 | 175 | |
| 326 | - return $defer; | |
| 327 | - } | |
| 328 | - | |
| 329 | - /** | |
| 330 | - * Set the object to the object ID. | |
| 331 | - * | |
| 332 | - * @param \Activitypub\Activity\Activity $activity The Activity object. | |
| 333 | - * | |
| 334 | - * @return \Activitypub\Activity\Activity The filtered Activity object. | |
| 335 | - */ | |
| 336 | - public static function outbox_activity( $activity ) { | |
| 337 | - if ( 'Delete' === $activity->get_type() ) { | |
| 338 | - $activity->set_object( object_to_uri( $activity->get_object() ) ); | |
| 339 | - } | |
| 340 | - | |
| 341 | - return $activity; | |
| 342 | - } | |
| 343 | - | |
| 344 | - /** | |
| 345 | - * Add a URL to the tombstone registry when a Delete activity is sent. | |
| 346 | - * | |
| 347 | - * @param int $outbox_id The ID of the outbox activity. | |
| 348 | - * @param \Activitypub\Activity\Activity $activity The Activity object. | |
| 349 | - */ | |
| 350 | - public static function maybe_bury( $outbox_id, $activity ) { | |
| 351 | - if ( 'Delete' !== $activity->get_type() ) { | |
| 352 | - return; | |
| 353 | - } | |
| 354 | - | |
| 355 | - $object = $activity->get_object(); | |
| 356 | - | |
| 357 | - if ( ! $object ) { | |
| 358 | - return; | |
| 359 | - } | |
| 360 | - | |
| 361 | - Tombstone::bury( object_to_uri( $object ) ); | |
| 362 | - | |
| 363 | - if ( \is_object( $object ) ) { | |
| 364 | - Tombstone::bury( $object->get_id(), $object->get_url() ); | |
| 365 | - } | |
| 176 | + return false; | |
| 366 | 177 | } |
| 367 | 178 | } |
