| @@ -1,829 +1,219 @@ | ||
| 1 | 1 | <?php |
| 2 | -namespace Activitypub; | |
| 3 | - | |
| 4 | -use WP_Error; | |
| 5 | -use Activitypub\Http; | |
| 6 | -use Activitypub\Comment; | |
| 7 | -use Activitypub\Webfinger; | |
| 8 | -use Activitypub\Activity\Activity; | |
| 9 | -use Activitypub\Collection\Followers; | |
| 10 | -use Activitypub\Collection\Users; | |
| 11 | - | |
| 12 | 2 | /** |
| 13 | 3 | * Returns the ActivityPub default JSON-context |
| 14 | 4 | * |
| 15 | 5 | * @return array the activitypub context |
| 16 | 6 | */ |
| 17 | -function get_context() { | |
| 18 | - $context = Activity::JSON_LD_CONTEXT; | |
| 7 | +function get_activitypub_context() { | |
| 8 | + $context = array( | |
| 9 | + 'https://www.w3.org/ns/activitystreams', | |
| 10 | + 'https://w3id.org/security/v1', | |
| 11 | + array( | |
| 12 | + 'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers', | |
| 13 | + 'sensitive' => 'as:sensitive', | |
| 14 | + 'movedTo' => array( | |
| 15 | + '@id' => 'as:movedTo', | |
| 16 | + '@type' => '@id', | |
| 17 | + ), | |
| 18 | + 'Hashtag' => 'as:Hashtag', | |
| 19 | + 'ostatus' => 'http://ostatus.org#', | |
| 20 | + 'atomUri' => 'ostatus:atomUri', | |
| 21 | + 'inReplyToAtomUri' => 'ostatus:inReplyToAtomUri', | |
| 22 | + 'conversation' => 'ostatus:conversation', | |
| 23 | + 'toot' => 'http://joinmastodon.org/ns#', | |
| 24 | + 'Emoji' => 'toot:Emoji', | |
| 25 | + 'focalPoint' => array( | |
| 26 | + '@container' => '@list', | |
| 27 | + '@id' => 'toot:focalPoint', | |
| 28 | + ), | |
| 29 | + 'featured' => array( | |
| 30 | + '@id' => 'toot:featured', | |
| 31 | + '@type' => '@id', | |
| 32 | + ), | |
| 33 | + 'schema' => 'http://schema.org#', | |
| 34 | + 'PropertyValue' => 'schema:PropertyValue', | |
| 35 | + 'value' => 'schema:value', | |
| 36 | + ), | |
| 37 | + ); | |
| 19 | 38 | |
| 20 | - return \apply_filters( 'activitypub_json_context', $context ); | |
| 39 | + return apply_filters( 'activitypub_json_context', $context ); | |
| 21 | 40 | } |
| 22 | 41 | |
| 23 | -function safe_remote_post( $url, $body, $user_id ) { | |
| 24 | - return Http::post( $url, $body, $user_id ); | |
| 25 | -} | |
| 42 | +function activitypub_safe_remote_post( $url, $body, $user_id ) { | |
| 43 | + $date = gmdate( 'D, d M Y H:i:s T' ); | |
| 44 | + $signature = Activitypub_Signature::generate_signature( $user_id, $url, $date ); | |
| 26 | 45 | |
| 27 | -function safe_remote_get( $url ) { | |
| 28 | - return Http::get( $url ); | |
| 46 | + $wp_version = get_bloginfo( 'version' ); | |
| 47 | + $user_agent = apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ) ); | |
| 48 | + $args = array( | |
| 49 | + 'timeout' => 100, | |
| 50 | + 'limit_response_size' => 1048576, | |
| 51 | + 'redirection' => 3, | |
| 52 | + 'user-agent' => "$user_agent; ActivityPub", | |
| 53 | + 'headers' => array( | |
| 54 | + 'Accept' => 'application/activity+json', | |
| 55 | + 'Content-Type' => 'application/activity+json', | |
| 56 | + 'Signature' => $signature, | |
| 57 | + 'Date' => $date, | |
| 58 | + ), | |
| 59 | + 'body' => $body, | |
| 60 | + ); | |
| 61 | + | |
| 62 | + return wp_safe_remote_post( $url, $args ); | |
| 29 | 63 | } |
| 30 | 64 | |
| 31 | 65 | /** |
| 32 | 66 | * Returns a users WebFinger "resource" |
| 33 | 67 | * |
| 34 | - * @param int $user_id The User-ID. | |
| 68 | + * @param int $user_id | |
| 35 | 69 | * |
| 36 | - * @return string The User-Resource. | |
| 70 | + * @return string The user-resource | |
| 37 | 71 | */ |
| 38 | -function get_webfinger_resource( $user_id ) { | |
| 39 | - return Webfinger::get_user_resource( $user_id ); | |
| 72 | +function activitypub_get_webfinger_resource( $user_id ) { | |
| 73 | + // use WebFinger plugin if installed | |
| 74 | + if ( function_exists( 'get_webfinger_resource' ) ) { | |
| 75 | + return get_webfinger_resource( $user_id, false ); | |
| 76 | + } | |
| 77 | + | |
| 78 | + $user = get_user_by( 'id', $user_id ); | |
| 79 | + | |
| 80 | + return $user->user_login . '@' . wp_parse_url( home_url(), PHP_URL_HOST ); | |
| 40 | 81 | } |
| 41 | 82 | |
| 42 | 83 | /** |
| 43 | - * Requests the Meta-Data from the Actors profile | |
| 84 | + * [get_metadata_by_actor description] | |
| 44 | 85 | * |
| 45 | - * @param string $actor The Actor URL. | |
| 46 | - * @param bool $cached If the result should be cached. | |
| 47 | - * | |
| 48 | - * @return array|WP_Error The Actor profile as array or WP_Error on failure. | |
| 86 | + * @param [type] $actor [description] | |
| 87 | + * @return [type] [description] | |
| 49 | 88 | */ |
| 50 | -function get_remote_metadata_by_actor( $actor, $cached = true ) { | |
| 51 | - $pre = apply_filters( 'pre_get_remote_metadata_by_actor', false, $actor ); | |
| 52 | - if ( $pre ) { | |
| 53 | - return $pre; | |
| 54 | - } | |
| 55 | - if ( preg_match( '/^@?' . ACTIVITYPUB_USERNAME_REGEXP . '$/i', $actor ) ) { | |
| 56 | - $actor = Webfinger::resolve( $actor ); | |
| 57 | - } | |
| 89 | +function activitypub_get_remote_metadata_by_actor( $actor ) { | |
| 90 | + $metadata = get_transient( 'activitypub_' . $actor ); | |
| 58 | 91 | |
| 59 | - if ( ! $actor ) { | |
| 60 | - return new WP_Error( 'activitypub_no_valid_actor_identifier', \__( 'The "actor" identifier is not valid', 'activitypub' ), array( 'status' => 404, 'actor' => $actor ) ); | |
| 92 | + if ( $metadata ) { | |
| 93 | + return $metadata; | |
| 61 | 94 | } |
| 62 | 95 | |
| 63 | - if ( is_wp_error( $actor ) ) { | |
| 64 | - return $actor; | |
| 96 | + if ( ! wp_http_validate_url( $actor ) ) { | |
| 97 | + return new WP_Error( 'activitypub_no_valid_actor_url', __( 'The "actor" is no valid URL', 'activitypub' ), $actor ); | |
| 65 | 98 | } |
| 66 | 99 | |
| 67 | - $transient_key = 'activitypub_' . $actor; | |
| 100 | + $wp_version = get_bloginfo( 'version' ); | |
| 68 | 101 | |
| 69 | - // only check the cache if needed. | |
| 70 | - if ( $cached ) { | |
| 71 | - $metadata = \get_transient( $transient_key ); | |
| 102 | + $user_agent = apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ) ); | |
| 103 | + $args = array( | |
| 104 | + 'timeout' => 100, | |
| 105 | + 'limit_response_size' => 1048576, | |
| 106 | + 'redirection' => 3, | |
| 107 | + 'user-agent' => "$user_agent; ActivityPub", | |
| 108 | + 'headers' => array( 'accept' => 'application/activity+json' ), | |
| 109 | + ); | |
| 72 | 110 | |
| 73 | - if ( $metadata ) { | |
| 74 | - return $metadata; | |
| 75 | - } | |
| 76 | - } | |
| 111 | + $response = wp_safe_remote_get( $actor, $args ); | |
| 77 | 112 | |
| 78 | - if ( ! \wp_http_validate_url( $actor ) ) { | |
| 79 | - $metadata = new WP_Error( 'activitypub_no_valid_actor_url', \__( 'The "actor" is no valid URL', 'activitypub' ), array( 'status' => 400, 'actor' => $actor ) ); | |
| 80 | - return $metadata; | |
| 81 | - } | |
| 82 | - | |
| 83 | - $response = Http::get( $actor ); | |
| 84 | - | |
| 85 | - if ( \is_wp_error( $response ) ) { | |
| 113 | + if ( is_wp_error( $response ) ) { | |
| 86 | 114 | return $response; |
| 87 | 115 | } |
| 88 | 116 | |
| 89 | - $metadata = \wp_remote_retrieve_body( $response ); | |
| 90 | - $metadata = \json_decode( $metadata, true ); | |
| 117 | + $metadata = wp_remote_retrieve_body( $response ); | |
| 118 | + $metadata = json_decode( $metadata, true ); | |
| 91 | 119 | |
| 92 | 120 | if ( ! $metadata ) { |
| 93 | - $metadata = new WP_Error( 'activitypub_invalid_json', \__( 'No valid JSON data', 'activitypub' ), array( 'status' => 400, 'actor' => $actor ) ); | |
| 94 | - return $metadata; | |
| 121 | + return new WP_Error( 'activitypub_invalid_json', __( 'No valid JSON data', 'activitypub' ), $actor ); | |
| 95 | 122 | } |
| 96 | 123 | |
| 97 | - \set_transient( $transient_key, $metadata, WEEK_IN_SECONDS ); | |
| 124 | + set_transient( 'activitypub_' . $actor, $metadata, WEEK_IN_SECONDS ); | |
| 98 | 125 | |
| 99 | 126 | return $metadata; |
| 100 | 127 | } |
| 101 | 128 | |
| 102 | 129 | /** |
| 103 | - * Returns the followers of a given user. | |
| 104 | - * | |
| 105 | - * @param int $user_id The User-ID. | |
| 106 | - * | |
| 107 | - * @return array The followers. | |
| 130 | + * [get_inbox_by_actor description] | |
| 131 | + * @param [type] $actor [description] | |
| 132 | + * @return [type] [description] | |
| 108 | 133 | */ |
| 109 | -function get_followers( $user_id ) { | |
| 110 | - return Followers::get_followers( $user_id ); | |
| 111 | -} | |
| 134 | +function activitypub_get_inbox_by_actor( $actor ) { | |
| 135 | + $metadata = activitypub_get_remote_metadata_by_actor( $actor ); | |
| 112 | 136 | |
| 113 | -/** | |
| 114 | - * Count the number of followers for a given user. | |
| 115 | - * | |
| 116 | - * @param int $user_id The User-ID. | |
| 117 | - * | |
| 118 | - * @return int The number of followers. | |
| 119 | - */ | |
| 120 | -function count_followers( $user_id ) { | |
| 121 | - return Followers::count_followers( $user_id ); | |
| 122 | -} | |
| 123 | - | |
| 124 | -/** | |
| 125 | - * Examine a url and try to determine the author ID it represents. | |
| 126 | - * | |
| 127 | - * Checks are supposedly from the hosted site blog. | |
| 128 | - * | |
| 129 | - * @param string $url Permalink to check. | |
| 130 | - * | |
| 131 | - * @return int User ID, or 0 on failure. | |
| 132 | - */ | |
| 133 | -function url_to_authorid( $url ) { | |
| 134 | - global $wp_rewrite; | |
| 135 | - | |
| 136 | - // check if url hase the same host | |
| 137 | - if ( \wp_parse_url( \site_url(), \PHP_URL_HOST ) !== \wp_parse_url( $url, \PHP_URL_HOST ) ) { | |
| 138 | - return 0; | |
| 137 | + if ( is_wp_error( $metadata ) ) { | |
| 138 | + return $metadata; | |
| 139 | 139 | } |
| 140 | 140 | |
| 141 | - // first, check to see if there is a 'author=N' to match against | |
| 142 | - if ( \preg_match( '/[?&]author=(\d+)/i', $url, $values ) ) { | |
| 143 | - $id = \absint( $values[1] ); | |
| 144 | - if ( $id ) { | |
| 145 | - return $id; | |
| 146 | - } | |
| 141 | + if ( isset( $metadata['endpoints'] ) && isset( $metadata['endpoints']['sharedInbox'] ) ) { | |
| 142 | + return $metadata['endpoints']['sharedInbox']; | |
| 147 | 143 | } |
| 148 | 144 | |
| 149 | - // check to see if we are using rewrite rules | |
| 150 | - $rewrite = $wp_rewrite->wp_rewrite_rules(); | |
| 151 | - | |
| 152 | - // not using rewrite rules, and 'author=N' method failed, so we're out of options | |
| 153 | - if ( empty( $rewrite ) ) { | |
| 154 | - return 0; | |
| 145 | + if ( array_key_exists( 'inbox', $metadata ) ) { | |
| 146 | + return $metadata['inbox']; | |
| 155 | 147 | } |
| 156 | 148 | |
| 157 | - // generate rewrite rule for the author url | |
| 158 | - $author_rewrite = $wp_rewrite->get_author_permastruct(); | |
| 159 | - $author_regexp = \str_replace( '%author%', '', $author_rewrite ); | |
| 160 | - | |
| 161 | - // match the rewrite rule with the passed url | |
| 162 | - if ( \preg_match( '/https?:\/\/(.+)' . \preg_quote( $author_regexp, '/' ) . '([^\/]+)/i', $url, $match ) ) { | |
| 163 | - $user = \get_user_by( 'slug', $match[2] ); | |
| 164 | - if ( $user ) { | |
| 165 | - return $user->ID; | |
| 166 | - } | |
| 167 | - } | |
| 168 | - | |
| 169 | - return 0; | |
| 149 | + return new WP_Error( 'activitypub_no_inbox', __( 'No "Inbox" found', 'activitypub' ), $metadata ); | |
| 170 | 150 | } |
| 171 | 151 | |
| 172 | 152 | /** |
| 173 | - * Verify if url is a wp_ap_comment, | |
| 174 | - * Or if it is a previously received remote comment | |
| 175 | - * | |
| 176 | - * @return int comment_id | |
| 153 | + * [get_inbox_by_actor description] | |
| 154 | + * @param [type] $actor [description] | |
| 155 | + * @return [type] [description] | |
| 177 | 156 | */ |
| 178 | -function is_comment() { | |
| 179 | - $comment_id = get_query_var( 'c', null ); | |
| 157 | +function activitypub_get_publickey_by_actor( $actor, $key_id ) { | |
| 158 | + $metadata = activitypub_get_remote_metadata_by_actor( $actor ); | |
| 180 | 159 | |
| 181 | - if ( ! is_null( $comment_id ) ) { | |
| 182 | - $comment = \get_comment( $comment_id ); | |
| 183 | - | |
| 184 | - // Only return local origin comments | |
| 185 | - if ( $comment && $comment->user_id ) { | |
| 186 | - return $comment_id; | |
| 187 | - } | |
| 160 | + if ( is_wp_error( $metadata ) ) { | |
| 161 | + return $metadata; | |
| 188 | 162 | } |
| 189 | 163 | |
| 190 | - return false; | |
| 191 | -} | |
| 192 | - | |
| 193 | -/** | |
| 194 | - * Check for Tombstone Objects | |
| 195 | - * | |
| 196 | - * @see https://www.w3.org/TR/activitypub/#delete-activity-outbox | |
| 197 | - * | |
| 198 | - * @param WP_Error $wp_error A WP_Error-Response of an HTTP-Request | |
| 199 | - * | |
| 200 | - * @return boolean true if HTTP-Code is 410 or 404 | |
| 201 | - */ | |
| 202 | -function is_tombstone( $wp_error ) { | |
| 203 | - if ( ! is_wp_error( $wp_error ) ) { | |
| 204 | - return false; | |
| 205 | - } | |
| 206 | - | |
| 207 | - if ( in_array( (int) $wp_error->get_error_code(), array( 404, 410 ), true ) ) { | |
| 208 | - return true; | |
| 209 | - } | |
| 210 | - | |
| 211 | - return false; | |
| 212 | -} | |
| 213 | - | |
| 214 | -/** | |
| 215 | - * Get the REST URL relative to this plugin's namespace. | |
| 216 | - * | |
| 217 | - * @param string $path Optional. REST route path. Otherwise this plugin's namespaced root. | |
| 218 | - * | |
| 219 | - * @return string REST URL relative to this plugin's namespace. | |
| 220 | - */ | |
| 221 | -function get_rest_url_by_path( $path = '' ) { | |
| 222 | - // we'll handle the leading slash. | |
| 223 | - $path = ltrim( $path, '/' ); | |
| 224 | - $namespaced_path = sprintf( '/%s/%s', ACTIVITYPUB_REST_NAMESPACE, $path ); | |
| 225 | - return \get_rest_url( null, $namespaced_path ); | |
| 226 | -} | |
| 227 | - | |
| 228 | -/** | |
| 229 | - * Convert a string from camelCase to snake_case. | |
| 230 | - * | |
| 231 | - * @param string $string The string to convert. | |
| 232 | - * | |
| 233 | - * @return string The converted string. | |
| 234 | - */ | |
| 235 | -// phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.stringFound | |
| 236 | -function camel_to_snake_case( $string ) { | |
| 237 | - return strtolower( preg_replace( '/(?<!^)[A-Z]/', '_$0', $string ) ); | |
| 238 | -} | |
| 239 | - | |
| 240 | -/** | |
| 241 | - * Convert a string from snake_case to camelCase. | |
| 242 | - * | |
| 243 | - * @param string $string The string to convert. | |
| 244 | - * | |
| 245 | - * @return string The converted string. | |
| 246 | - */ | |
| 247 | -// phpcs:ignore Universal.NamingConventions.NoReservedKeywordParameterNames.stringFound | |
| 248 | -function snake_to_camel_case( $string ) { | |
| 249 | - return lcfirst( str_replace( '_', '', ucwords( $string, '_' ) ) ); | |
| 250 | -} | |
| 251 | - | |
| 252 | -/** | |
| 253 | - * Escapes a Tag, to be used as a hashtag. | |
| 254 | - * | |
| 255 | - * @param string $string The string to escape. | |
| 256 | - * | |
| 257 | - * @return string The escaped hastag. | |
| 258 | - */ | |
| 259 | -function esc_hashtag( $string ) { | |
| 260 | - | |
| 261 | - $hashtag = \wp_specialchars_decode( $string, ENT_QUOTES ); | |
| 262 | - // Remove all characters that are not letters, numbers, or underscores. | |
| 263 | - $hashtag = \preg_replace( '/emoji-regex(*SKIP)(?!)|[^\p{L}\p{Nd}_]+/u', '_', $hashtag ); | |
| 264 | - | |
| 265 | - // Capitalize every letter that is preceded by an underscore. | |
| 266 | - $hashtag = preg_replace_callback( | |
| 267 | - '/_(.)/', | |
| 268 | - function ( $matches ) { | |
| 269 | - return '' . strtoupper( $matches[1] ); | |
| 270 | - }, | |
| 271 | - $hashtag | |
| 272 | - ); | |
| 273 | - | |
| 274 | - // Add a hashtag to the beginning of the string. | |
| 275 | - $hashtag = ltrim( $hashtag, '#' ); | |
| 276 | - $hashtag = '#' . $hashtag; | |
| 277 | - | |
| 278 | - /** | |
| 279 | - * Allow defining your own custom hashtag generation rules. | |
| 280 | - * | |
| 281 | - * @param string $hashtag The hashtag to be returned. | |
| 282 | - * @param string $string The original string. | |
| 283 | - */ | |
| 284 | - $hashtag = apply_filters( 'activitypub_esc_hashtag', $hashtag, $string ); | |
| 285 | - | |
| 286 | - return esc_html( $hashtag ); | |
| 287 | -} | |
| 288 | - | |
| 289 | -/** | |
| 290 | - * Check if a request is for an ActivityPub request. | |
| 291 | - * | |
| 292 | - * @return bool False by default. | |
| 293 | - */ | |
| 294 | -function is_activitypub_request() { | |
| 295 | - global $wp_query; | |
| 296 | - | |
| 297 | - /* | |
| 298 | - * ActivityPub requests are currently only made for | |
| 299 | - * author archives, singular posts, and the homepage. | |
| 300 | - */ | |
| 301 | - if ( ! \is_author() && ! \is_singular() && ! \is_home() && ! defined( '\REST_REQUEST' ) ) { | |
| 302 | - return false; | |
| 303 | - } | |
| 304 | - | |
| 305 | - // Check if the current post type supports ActivityPub. | |
| 306 | - if ( \is_singular() ) { | |
| 307 | - $queried_object = \get_queried_object(); | |
| 308 | - $post_type = \get_post_type( $queried_object ); | |
| 309 | - | |
| 310 | - if ( ! \post_type_supports( $post_type, 'activitypub' ) ) { | |
| 311 | - return false; | |
| 312 | - } | |
| 313 | - } | |
| 314 | - | |
| 315 | - // Check if header already sent. | |
| 316 | - if ( ! \headers_sent() && ACTIVITYPUB_SEND_VARY_HEADER ) { | |
| 317 | - // Send Vary header for Accept header. | |
| 318 | - \header( 'Vary: Accept' ); | |
| 319 | - } | |
| 320 | - | |
| 321 | - // One can trigger an ActivityPub request by adding ?activitypub to the URL. | |
| 322 | - // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.VariableRedeclaration | |
| 323 | - global $wp_query; | |
| 324 | - if ( isset( $wp_query->query_vars['activitypub'] ) ) { | |
| 325 | - return true; | |
| 326 | - } | |
| 327 | - | |
| 328 | - /* | |
| 329 | - * The other (more common) option to make an ActivityPub request | |
| 330 | - * is to send an Accept header. | |
| 331 | - */ | |
| 332 | - if ( isset( $_SERVER['HTTP_ACCEPT'] ) ) { | |
| 333 | - $accept = sanitize_text_field( wp_unslash( $_SERVER['HTTP_ACCEPT'] ) ); | |
| 334 | - | |
| 335 | - /* | |
| 336 | - * $accept can be a single value, or a comma separated list of values. | |
| 337 | - * We want to support both scenarios, | |
| 338 | - * and return true when the header includes at least one of the following: | |
| 339 | - * - application/activity+json | |
| 340 | - * - application/ld+json | |
| 341 | - * - application/json | |
| 342 | - */ | |
| 343 | - if ( preg_match( '/(application\/(ld\+json|activity\+json|json))/i', $accept ) ) { | |
| 344 | - return true; | |
| 345 | - } | |
| 346 | - } | |
| 347 | - | |
| 348 | - return false; | |
| 349 | -} | |
| 350 | - | |
| 351 | -/** | |
| 352 | - * This function checks if a user is disabled for ActivityPub. | |
| 353 | - * | |
| 354 | - * @param int $user_id The User-ID. | |
| 355 | - * | |
| 356 | - * @return boolean True if the user is disabled, false otherwise. | |
| 357 | - */ | |
| 358 | -function is_user_disabled( $user_id ) { | |
| 359 | - $return = false; | |
| 360 | - | |
| 361 | - switch ( $user_id ) { | |
| 362 | - // if the user is the application user, it's always enabled. | |
| 363 | - case \Activitypub\Collection\Users::APPLICATION_USER_ID: | |
| 364 | - $return = false; | |
| 365 | - break; | |
| 366 | - // if the user is the blog user, it's only enabled in single-user mode. | |
| 367 | - case \Activitypub\Collection\Users::BLOG_USER_ID: | |
| 368 | - if ( is_user_type_disabled( 'blog' ) ) { | |
| 369 | - $return = true; | |
| 370 | - break; | |
| 371 | - } | |
| 372 | - | |
| 373 | - $return = false; | |
| 374 | - break; | |
| 375 | - // if the user is any other user, it's enabled if it can publish posts. | |
| 376 | - default: | |
| 377 | - if ( ! \get_user_by( 'id', $user_id ) ) { | |
| 378 | - $return = true; | |
| 379 | - break; | |
| 380 | - } | |
| 381 | - | |
| 382 | - if ( is_user_type_disabled( 'user' ) ) { | |
| 383 | - $return = true; | |
| 384 | - break; | |
| 385 | - } | |
| 386 | - | |
| 387 | - if ( ! \user_can( $user_id, 'publish_posts' ) ) { | |
| 388 | - $return = true; | |
| 389 | - break; | |
| 390 | - } | |
| 391 | - | |
| 392 | - $return = false; | |
| 393 | - break; | |
| 394 | - } | |
| 395 | - | |
| 396 | - return apply_filters( 'activitypub_is_user_disabled', $return, $user_id ); | |
| 397 | -} | |
| 398 | - | |
| 399 | -/** | |
| 400 | - * Checks if a User-Type is disabled for ActivityPub. | |
| 401 | - * | |
| 402 | - * This function is used to check if the 'blog' or 'user' | |
| 403 | - * type is disabled for ActivityPub. | |
| 404 | - * | |
| 405 | - * @param enum $type Can be 'blog' or 'user'. | |
| 406 | - * | |
| 407 | - * @return boolean True if the user type is disabled, false otherwise. | |
| 408 | - */ | |
| 409 | -function is_user_type_disabled( $type ) { | |
| 410 | - switch ( $type ) { | |
| 411 | - case 'blog': | |
| 412 | - if ( \defined( 'ACTIVITYPUB_SINGLE_USER_MODE' ) ) { | |
| 413 | - if ( ACTIVITYPUB_SINGLE_USER_MODE ) { | |
| 414 | - $return = false; | |
| 415 | - break; | |
| 416 | - } | |
| 417 | - } | |
| 418 | - | |
| 419 | - if ( \defined( 'ACTIVITYPUB_DISABLE_BLOG_USER' ) ) { | |
| 420 | - $return = ACTIVITYPUB_DISABLE_BLOG_USER; | |
| 421 | - break; | |
| 422 | - } | |
| 423 | - | |
| 424 | - if ( '1' !== \get_option( 'activitypub_enable_blog_user', '0' ) ) { | |
| 425 | - $return = true; | |
| 426 | - break; | |
| 427 | - } | |
| 428 | - | |
| 429 | - $return = false; | |
| 430 | - break; | |
| 431 | - case 'user': | |
| 432 | - if ( \defined( 'ACTIVITYPUB_SINGLE_USER_MODE' ) ) { | |
| 433 | - if ( ACTIVITYPUB_SINGLE_USER_MODE ) { | |
| 434 | - $return = true; | |
| 435 | - break; | |
| 436 | - } | |
| 437 | - } | |
| 438 | - | |
| 439 | - if ( \defined( 'ACTIVITYPUB_DISABLE_USER' ) ) { | |
| 440 | - $return = ACTIVITYPUB_DISABLE_USER; | |
| 441 | - break; | |
| 442 | - } | |
| 443 | - | |
| 444 | - if ( '1' !== \get_option( 'activitypub_enable_users', '1' ) ) { | |
| 445 | - $return = true; | |
| 446 | - break; | |
| 447 | - } | |
| 448 | - | |
| 449 | - $return = false; | |
| 450 | - break; | |
| 451 | - default: | |
| 452 | - $return = new WP_Error( 'activitypub_wrong_user_type', __( 'Wrong user type', 'activitypub' ), array( 'status' => 400 ) ); | |
| 453 | - break; | |
| 454 | - } | |
| 455 | - | |
| 456 | - return apply_filters( 'activitypub_is_user_type_disabled', $return, $type ); | |
| 457 | -} | |
| 458 | - | |
| 459 | -/** | |
| 460 | - * Check if the blog is in single-user mode. | |
| 461 | - * | |
| 462 | - * @return boolean True if the blog is in single-user mode, false otherwise. | |
| 463 | - */ | |
| 464 | -function is_single_user() { | |
| 465 | 164 | if ( |
| 466 | - false === is_user_type_disabled( 'blog' ) && | |
| 467 | - true === is_user_type_disabled( 'user' ) | |
| 165 | + isset( $metadata['publicKey'] ) && | |
| 166 | + isset( $metadata['publicKey']['id'] ) && | |
| 167 | + isset( $metadata['publicKey']['owner'] ) && | |
| 168 | + isset( $metadata['publicKey']['publicKeyPem'] ) && | |
| 169 | + $key_id === $metadata['publicKey']['id'] && | |
| 170 | + $actor === $metadata['publicKey']['owner'] | |
| 468 | 171 | ) { |
| 469 | - return true; | |
| 172 | + return $metadata['publicKey']['publicKeyPem']; | |
| 470 | 173 | } |
| 471 | 174 | |
| 472 | - return false; | |
| 175 | + return new WP_Error( 'activitypub_no_public_key', __( 'No "Public-Key" found', 'activitypub' ), $metadata ); | |
| 473 | 176 | } |
| 474 | 177 | |
| 475 | -/** | |
| 476 | - * Check if a site supports the block editor. | |
| 477 | - * | |
| 478 | - * @return boolean True if the site supports the block editor, false otherwise. | |
| 479 | - */ | |
| 480 | -function site_supports_blocks() { | |
| 481 | - if ( \version_compare( \get_bloginfo( 'version' ), '5.9', '<' ) ) { | |
| 482 | - return false; | |
| 178 | +function activitypub_get_follower_inboxes( $user_id, $followers ) { | |
| 179 | + $inboxes = array(); | |
| 180 | + foreach ( $followers as $follower ) { | |
| 181 | + $inboxes[] = activitypub_get_inbox_by_actor( $follower ); | |
| 483 | 182 | } |
| 484 | 183 | |
| 485 | - if ( ! \function_exists( 'register_block_type_from_metadata' ) ) { | |
| 486 | - return false; | |
| 487 | - } | |
| 488 | - | |
| 489 | - /** | |
| 490 | - * Allow plugins to disable block editor support, | |
| 491 | - * thus disabling blocks registered by the ActivityPub plugin. | |
| 492 | - * | |
| 493 | - * @param boolean $supports_blocks True if the site supports the block editor, false otherwise. | |
| 494 | - */ | |
| 495 | - return apply_filters( 'activitypub_site_supports_blocks', true ); | |
| 184 | + return array_unique( $inboxes ); | |
| 496 | 185 | } |
| 497 | 186 | |
| 498 | -/** | |
| 499 | - * Check if data is valid JSON. | |
| 500 | - * | |
| 501 | - * @param string $data The data to check. | |
| 502 | - * | |
| 503 | - * @return boolean True if the data is JSON, false otherwise. | |
| 504 | - */ | |
| 505 | -function is_json( $data ) { | |
| 506 | - return \is_array( \json_decode( $data, true ) ) ? true : false; | |
| 187 | +function activitypub_get_identifier_settings( $user_id ) { | |
| 188 | + ?> | |
| 189 | +<table class="form-table"> | |
| 190 | + <tbody> | |
| 191 | + <tr> | |
| 192 | + <th scope="row"> | |
| 193 | + <label><?php esc_html_e( 'Profile identifier', 'activitypub' ); ?></label> | |
| 194 | + </th> | |
| 195 | + <td> | |
| 196 | + <p><code><?php echo activitypub_get_webfinger_resource( $user_id ); ?></code> or <code><?php echo get_author_posts_url( $user_id ); ?></code></p> | |
| 197 | + <p class="description"><?php printf( __( 'Try to follow "@%s" in the mastodon/friendi.ca search field.', 'activitypub' ), activitypub_get_webfinger_resource( $user_id ) ); ?></p> | |
| 198 | + </td> | |
| 199 | + </tr> | |
| 200 | + </tbody> | |
| 201 | +</table> | |
| 202 | + <?php | |
| 507 | 203 | } |
| 508 | 204 | |
| 509 | -/** | |
| 510 | - * Check if a blog is public based on the `blog_public` option | |
| 511 | - * | |
| 512 | - * @return bollean True if public, false if not | |
| 513 | - */ | |
| 514 | -function is_blog_public() { | |
| 515 | - return (bool) apply_filters( 'activitypub_is_blog_public', \get_option( 'blog_public', 1 ) ); | |
| 516 | -} | |
| 205 | +function activitypub_get_followers( $user_id ) { | |
| 206 | + $followers = Db_Activitypub_Followers::get_followers( $user_id ); | |
| 517 | 207 | |
| 518 | -/** | |
| 519 | - * Sanitize a URL | |
| 520 | - * | |
| 521 | - * @param string $value The URL to sanitize | |
| 522 | - * | |
| 523 | - * @return string|null The sanitized URL or null if invalid | |
| 524 | - */ | |
| 525 | -function sanitize_url( $value ) { | |
| 526 | - if ( filter_var( $value, FILTER_VALIDATE_URL ) === false ) { | |
| 527 | - return null; | |
| 208 | + if ( ! $followers ) { | |
| 209 | + return array(); | |
| 528 | 210 | } |
| 529 | 211 | |
| 530 | - return esc_url_raw( $value ); | |
| 212 | + return $followers; | |
| 531 | 213 | } |
| 532 | 214 | |
| 533 | -/** | |
| 534 | - * Extract recipient URLs from Activity object | |
| 535 | - * | |
| 536 | - * @param array $data | |
| 537 | - * | |
| 538 | - * @return array The list of user URLs | |
| 539 | - */ | |
| 540 | -function extract_recipients_from_activity( $data ) { | |
| 541 | - $recipient_items = array(); | |
| 215 | +function activitypub_count_followers( $user_id ) { | |
| 216 | + $followers = activitypub_get_followers( $user_id ); | |
| 542 | 217 | |
| 543 | - foreach ( array( 'to', 'bto', 'cc', 'bcc', 'audience' ) as $i ) { | |
| 544 | - if ( array_key_exists( $i, $data ) ) { | |
| 545 | - if ( is_array( $data[ $i ] ) ) { | |
| 546 | - $recipient = $data[ $i ]; | |
| 547 | - } else { | |
| 548 | - $recipient = array( $data[ $i ] ); | |
| 549 | - } | |
| 550 | - $recipient_items = array_merge( $recipient_items, $recipient ); | |
| 551 | - } | |
| 552 | - | |
| 553 | - if ( is_array( $data['object'] ) && array_key_exists( $i, $data['object'] ) ) { | |
| 554 | - if ( is_array( $data['object'][ $i ] ) ) { | |
| 555 | - $recipient = $data['object'][ $i ]; | |
| 556 | - } else { | |
| 557 | - $recipient = array( $data['object'][ $i ] ); | |
| 558 | - } | |
| 559 | - $recipient_items = array_merge( $recipient_items, $recipient ); | |
| 560 | - } | |
| 561 | - } | |
| 562 | - | |
| 563 | - $recipients = array(); | |
| 564 | - | |
| 565 | - // flatten array | |
| 566 | - foreach ( $recipient_items as $recipient ) { | |
| 567 | - if ( is_array( $recipient ) ) { | |
| 568 | - // check if recipient is an object | |
| 569 | - if ( array_key_exists( 'id', $recipient ) ) { | |
| 570 | - $recipients[] = $recipient['id']; | |
| 571 | - } | |
| 572 | - } else { | |
| 573 | - $recipients[] = $recipient; | |
| 574 | - } | |
| 575 | - } | |
| 576 | - | |
| 577 | - return array_unique( $recipients ); | |
| 578 | -} | |
| 579 | - | |
| 580 | -/** | |
| 581 | - * Check if passed Activity is Public | |
| 582 | - * | |
| 583 | - * @param array $data The Activity object as array | |
| 584 | - * | |
| 585 | - * @return boolean True if public, false if not | |
| 586 | - */ | |
| 587 | -function is_activity_public( $data ) { | |
| 588 | - $recipients = extract_recipients_from_activity( $data ); | |
| 589 | - | |
| 590 | - return in_array( 'https://www.w3.org/ns/activitystreams#Public', $recipients, true ); | |
| 591 | -} | |
| 592 | - | |
| 593 | -/** | |
| 594 | - * Get active users based on a given duration | |
| 595 | - * | |
| 596 | - * @param int $duration The duration to check in month(s) | |
| 597 | - * | |
| 598 | - * @return int The number of active users | |
| 599 | - */ | |
| 600 | -function get_active_users( $duration = 1 ) { | |
| 601 | - | |
| 602 | - $duration = intval( $duration ); | |
| 603 | - $transient_key = sprintf( 'monthly_active_users_%d', $duration ); | |
| 604 | - $count = get_transient( $transient_key ); | |
| 605 | - | |
| 606 | - if ( false === $count ) { | |
| 607 | - global $wpdb; | |
| 608 | - $query = "SELECT COUNT( DISTINCT post_author ) FROM {$wpdb->posts} WHERE post_type = 'post' AND post_status = 'publish' AND post_date <= DATE_SUB( NOW(), INTERVAL %d MONTH )"; | |
| 609 | - $query = $wpdb->prepare( $query, $duration ); | |
| 610 | - $count = $wpdb->get_var( $query ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching | |
| 611 | - | |
| 612 | - set_transient( $transient_key, $count, DAY_IN_SECONDS ); | |
| 613 | - } | |
| 614 | - | |
| 615 | - // if 0 authors where active | |
| 616 | - if ( 0 === $count ) { | |
| 617 | - return 0; | |
| 618 | - } | |
| 619 | - | |
| 620 | - // if single user mode | |
| 621 | - if ( is_single_user() ) { | |
| 622 | - return 1; | |
| 623 | - } | |
| 624 | - | |
| 625 | - // if blog user is disabled | |
| 626 | - if ( is_user_disabled( Users::BLOG_USER_ID ) ) { | |
| 627 | - return $count; | |
| 628 | - } | |
| 629 | - | |
| 630 | - // also count blog user | |
| 631 | - return $count + 1; | |
| 632 | -} | |
| 633 | - | |
| 634 | -/** | |
| 635 | - * Get the total number of users | |
| 636 | - * | |
| 637 | - * @return int The total number of users | |
| 638 | - */ | |
| 639 | -function get_total_users() { | |
| 640 | - // if single user mode | |
| 641 | - if ( is_single_user() ) { | |
| 642 | - return 1; | |
| 643 | - } | |
| 644 | - | |
| 645 | - $users = \get_users( | |
| 646 | - array( | |
| 647 | - 'capability__in' => array( 'publish_posts' ), | |
| 648 | - ) | |
| 649 | - ); | |
| 650 | - | |
| 651 | - if ( is_array( $users ) ) { | |
| 652 | - $users = count( $users ); | |
| 653 | - } else { | |
| 654 | - $users = 1; | |
| 655 | - } | |
| 656 | - | |
| 657 | - // if blog user is disabled | |
| 658 | - if ( is_user_disabled( Users::BLOG_USER_ID ) ) { | |
| 659 | - return $users; | |
| 660 | - } | |
| 661 | - | |
| 662 | - return $users + 1; | |
| 663 | -} | |
| 664 | - | |
| 665 | -/** | |
| 666 | - * Examine a comment ID and look up an existing comment it represents. | |
| 667 | - * | |
| 668 | - * @param string $id ActivityPub object ID (usually a URL) to check. | |
| 669 | - * | |
| 670 | - * @return int|boolean Comment ID, or false on failure. | |
| 671 | - */ | |
| 672 | -function object_id_to_comment( $id ) { | |
| 673 | - return Comment::object_id_to_comment( $id ); | |
| 674 | -} | |
| 675 | - | |
| 676 | -/** | |
| 677 | - * Verify if URL is a local comment, | |
| 678 | - * Or if it is a previously received remote comment | |
| 679 | - * (For threading comments locally) | |
| 680 | - * | |
| 681 | - * @param string $url The URL to check. | |
| 682 | - * | |
| 683 | - * @return int comment_ID or null if not found | |
| 684 | - */ | |
| 685 | -function url_to_commentid( $url ) { | |
| 686 | - return Comment::url_to_commentid( $url ); | |
| 687 | -} | |
| 688 | - | |
| 689 | -/** | |
| 690 | - * Get the URI of an ActivityPub object | |
| 691 | - * | |
| 692 | - * @param array $object The ActivityPub object | |
| 693 | - * | |
| 694 | - * @return string The URI of the ActivityPub object | |
| 695 | - */ | |
| 696 | -function object_to_uri( $object ) { | |
| 697 | - // check if it is already simple | |
| 698 | - if ( ! $object || is_string( $object ) ) { | |
| 699 | - return $object; | |
| 700 | - } | |
| 701 | - | |
| 702 | - // check if it is a list, then take first item | |
| 703 | - // this plugin does not support collections | |
| 704 | - if ( array_is_list( $object ) ) { | |
| 705 | - $object = $object[0]; | |
| 706 | - } | |
| 707 | - | |
| 708 | - // check if it is simplified now | |
| 709 | - if ( is_string( $object ) ) { | |
| 710 | - return $object; | |
| 711 | - } | |
| 712 | - | |
| 713 | - // return part of Object that makes most sense | |
| 714 | - switch ( $object['type'] ) { | |
| 715 | - case 'Link': | |
| 716 | - $object = $object['href']; | |
| 717 | - break; | |
| 718 | - default: | |
| 719 | - $object = $object['id']; | |
| 720 | - break; | |
| 721 | - } | |
| 722 | - | |
| 723 | - return $object; | |
| 724 | -} | |
| 725 | - | |
| 726 | -/** | |
| 727 | - * Check if a comment should be federated. | |
| 728 | - * | |
| 729 | - * We consider a comment should be federated if it is authored by a user that is | |
| 730 | - * not disabled for federation and if it is a reply directly to the post or to a | |
| 731 | - * federated comment. | |
| 732 | - * | |
| 733 | - * @param mixed $comment Comment object or ID. | |
| 734 | - * | |
| 735 | - * @return boolean True if the comment should be federated, false otherwise. | |
| 736 | - */ | |
| 737 | -function should_comment_be_federated( $comment ) { | |
| 738 | - return Comment::should_be_federated( $comment ); | |
| 739 | -} | |
| 740 | - | |
| 741 | -/** | |
| 742 | - * Check if a comment was federated. | |
| 743 | - * | |
| 744 | - * This function checks if a comment was federated via ActivityPub. | |
| 745 | - * | |
| 746 | - * @param mixed $comment Comment object or ID. | |
| 747 | - * | |
| 748 | - * @return boolean True if the comment was federated, false otherwise. | |
| 749 | - */ | |
| 750 | -function was_comment_sent( $comment ) { | |
| 751 | - return Comment::was_sent( $comment ); | |
| 752 | -} | |
| 753 | - | |
| 754 | -/** | |
| 755 | - * Check if a comment is federated. | |
| 756 | - * | |
| 757 | - * We consider a comment federated if comment was received via ActivityPub. | |
| 758 | - * | |
| 759 | - * Use this function to check if it is comment that was received via ActivityPub. | |
| 760 | - * | |
| 761 | - * @param mixed $comment Comment object or ID. | |
| 762 | - * | |
| 763 | - * @return boolean True if the comment is federated, false otherwise. | |
| 764 | - */ | |
| 765 | -function was_comment_received( $comment ) { | |
| 766 | - return Comment::was_received( $comment ); | |
| 767 | -} | |
| 768 | - | |
| 769 | -/** | |
| 770 | - * Check if a comment is local only. | |
| 771 | - * | |
| 772 | - * This function checks if a comment is local only and was not sent or received via ActivityPub. | |
| 773 | - * | |
| 774 | - * @param mixed $comment Comment object or ID. | |
| 775 | - * | |
| 776 | - * @return boolean True if the comment is local only, false otherwise. | |
| 777 | - */ | |
| 778 | -function is_local_comment( $comment ) { | |
| 779 | - return Comment::is_local( $comment ); | |
| 780 | -} | |
| 781 | - | |
| 782 | -/** | |
| 783 | - * Mark a WordPress object as federated. | |
| 784 | - * | |
| 785 | - * @param WP_Comment|WP_Post|mixed $wp_object | |
| 786 | - * @return void | |
| 787 | - */ | |
| 788 | -function set_wp_object_state( $wp_object, $state ) { | |
| 789 | - $meta_key = 'activitypub_status'; | |
| 790 | - | |
| 791 | - if ( $wp_object instanceof \WP_Post ) { | |
| 792 | - \update_post_meta( $wp_object->ID, $meta_key, $state ); | |
| 793 | - } elseif ( $wp_object instanceof \WP_Comment ) { | |
| 794 | - \update_comment_meta( $wp_object->comment_ID, $meta_key, $state ); | |
| 795 | - } else { | |
| 796 | - \apply_filters( 'activitypub_mark_wp_object_as_federated', $wp_object ); | |
| 797 | - } | |
| 798 | -} | |
| 799 | - | |
| 800 | -/** | |
| 801 | - * Get the description of a post type. | |
| 802 | - * | |
| 803 | - * Set some default descriptions for the default post types. | |
| 804 | - * | |
| 805 | - * @param WP_Post_Type $post_type The post type object. | |
| 806 | - * | |
| 807 | - * @return string The description of the post type. | |
| 808 | - */ | |
| 809 | -function get_post_type_description( $post_type ) { | |
| 810 | - $description = ''; | |
| 811 | - | |
| 812 | - switch ( $post_type->name ) { | |
| 813 | - case 'post': | |
| 814 | - $description = ''; | |
| 815 | - break; | |
| 816 | - case 'page': | |
| 817 | - $description = ''; | |
| 818 | - break; | |
| 819 | - case 'attachment': | |
| 820 | - $description = ' - ' . __( 'The attachments that you have uploaded to a post (images, videos, documents or other files).', 'activitypub' ); | |
| 821 | - break; | |
| 822 | - default: | |
| 823 | - if ( ! empty( $post_type->description ) ) { | |
| 824 | - $description = ' - ' . $post_type->description; | |
| 825 | - } | |
| 826 | - } | |
| 827 | - | |
| 828 | - return apply_filters( 'activitypub_post_type_description', $description, $post_type->name, $post_type ); | |
| 218 | + return count( $followers ); | |
| 829 | 219 | } |
