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| 1 | <?php |
| 2 | /** |
| 3 | * A Terms of Service class for Jetpack. |
| 4 | * |
| 5 | * @package automattic/jetpack-licensing |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack; |
| 9 | |
| 10 | use Automattic\Jetpack\Connection\Manager as Connection_Manager; |
| 11 | use Automattic\Jetpack\Licensing\Endpoints; |
| 12 | use Jetpack_IXR_ClientMulticall; |
| 13 | use Jetpack_Options; |
| 14 | use WP_Error; |
| 15 | |
| 16 | /** |
| 17 | * Class Licensing. |
| 18 | * Helper class that is responsible for attaching licenses to the current site. |
| 19 | * |
| 20 | * @since 1.1.1 |
| 21 | */ |
| 22 | class Licensing { |
| 23 | /** |
| 24 | * Name of the WordPress option that holds all known Jetpack licenses. |
| 25 | * |
| 26 | * @const string |
| 27 | */ |
| 28 | const LICENSES_OPTION_NAME = 'jetpack_licenses'; |
| 29 | |
| 30 | /** |
| 31 | * Name of the WordPress transient that holds the last license attaching error, if any. |
| 32 | * |
| 33 | * @const string |
| 34 | */ |
| 35 | const ERROR_TRANSIENT_NAME = 'jetpack_licenses_error'; |
| 36 | |
| 37 | /** |
| 38 | * Holds the singleton instance of this class. |
| 39 | * |
| 40 | * @var self |
| 41 | */ |
| 42 | protected static $instance = false; |
| 43 | |
| 44 | /** |
| 45 | * Singleton. |
| 46 | * |
| 47 | * @static |
| 48 | */ |
| 49 | public static function instance() { |
| 50 | if ( ! self::$instance ) { |
| 51 | self::$instance = new self(); |
| 52 | } |
| 53 | |
| 54 | return self::$instance; |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Initialize. |
| 59 | * |
| 60 | * @return void |
| 61 | */ |
| 62 | public function initialize() { |
| 63 | add_action( 'add_option_' . self::LICENSES_OPTION_NAME, array( $this, 'attach_stored_licenses' ) ); |
| 64 | add_action( 'update_option_' . self::LICENSES_OPTION_NAME, array( $this, 'attach_stored_licenses' ) ); |
| 65 | add_action( 'jetpack_authorize_ending_authorized', array( $this, 'attach_stored_licenses_on_connection' ) ); |
| 66 | add_action( 'rest_api_init', array( $this, 'initialize_endpoints' ) ); |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Initialize endpoints required for Licensing package. |
| 71 | * |
| 72 | * @since 1.7.0 |
| 73 | * |
| 74 | * @return void |
| 75 | */ |
| 76 | public function initialize_endpoints() { |
| 77 | $endpoints = new Endpoints(); |
| 78 | $endpoints->register_endpoints(); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Get Jetpack connection manager instance. |
| 83 | * |
| 84 | * @return Connection_Manager |
| 85 | */ |
| 86 | protected function connection() { |
| 87 | static $connection; |
| 88 | |
| 89 | if ( null === $connection ) { |
| 90 | $connection = new Connection_Manager(); |
| 91 | } |
| 92 | |
| 93 | return $connection; |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Get the last license attach request error that has occurred, if any. |
| 98 | * |
| 99 | * @return string Human-readable error message or an empty string. |
| 100 | */ |
| 101 | public function last_error() { |
| 102 | return Jetpack_Options::get_option( 'licensing_error', '' ); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Log an error to be surfaced to the user at a later time. |
| 107 | * |
| 108 | * @param string $error Human-readable error message. |
| 109 | * @return void |
| 110 | */ |
| 111 | public function log_error( $error ) { |
| 112 | $substr = function_exists( 'mb_substr' ) ? 'mb_substr' : 'substr'; |
| 113 | Jetpack_Options::update_option( 'licensing_error', $substr( $error, 0, 1024 ) ); |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Get all stored licenses. |
| 118 | * |
| 119 | * @return string[] License keys. |
| 120 | */ |
| 121 | public function stored_licenses() { |
| 122 | $licenses = (array) get_option( self::LICENSES_OPTION_NAME, array() ); |
| 123 | $licenses = array_filter( $licenses, 'is_scalar' ); |
| 124 | $licenses = array_map( 'strval', $licenses ); |
| 125 | $licenses = array_filter( $licenses ); |
| 126 | |
| 127 | return $licenses; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Append a license |
| 132 | * |
| 133 | * @param string $license A jetpack license key. |
| 134 | * @return bool True if the option was updated with the new license, false otherwise. |
| 135 | */ |
| 136 | public function append_license( $license ) { |
| 137 | $licenses = $this->stored_licenses(); |
| 138 | |
| 139 | array_push( $licenses, $license ); |
| 140 | |
| 141 | return update_option( self::LICENSES_OPTION_NAME, $licenses ); |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Make an authenticated WP.com XMLRPC multicall request to attach the provided license keys. |
| 146 | * |
| 147 | * @param string[] $licenses License keys to attach. |
| 148 | * @return Jetpack_IXR_ClientMulticall |
| 149 | */ |
| 150 | protected function attach_licenses_request( array $licenses ) { |
| 151 | $xml = new Jetpack_IXR_ClientMulticall( array( 'timeout' => 30 ) ); |
| 152 | |
| 153 | foreach ( $licenses as $license ) { |
| 154 | $xml->addCall( 'jetpack.attachLicense', $license ); |
| 155 | } |
| 156 | |
| 157 | $xml->query(); |
| 158 | |
| 159 | return $xml; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Attach the given licenses. |
| 164 | * |
| 165 | * @param string[] $licenses Licenses to attach. |
| 166 | * @return array|WP_Error Results for each license (which may include WP_Error instances) or a WP_Error instance. |
| 167 | */ |
| 168 | public function attach_licenses( array $licenses ) { |
| 169 | if ( ! $this->connection()->has_connected_owner() ) { |
| 170 | return new WP_Error( 'not_connected', __( 'Jetpack doesn\'t have a connected owner.', 'jetpack-licensing' ) ); |
| 171 | } |
| 172 | |
| 173 | if ( empty( $licenses ) ) { |
| 174 | return array(); |
| 175 | } |
| 176 | |
| 177 | $xml = $this->attach_licenses_request( $licenses ); |
| 178 | |
| 179 | if ( $xml->isError() ) { |
| 180 | $error = new WP_Error( 'request_failed', __( 'License attach request failed.', 'jetpack-licensing' ) ); |
| 181 | $error->add( $xml->getErrorCode(), $xml->getErrorMessage() ); |
| 182 | return $error; |
| 183 | } |
| 184 | |
| 185 | $results = array_map( |
| 186 | function ( $response ) { |
| 187 | if ( isset( $response['faultCode'] ) || isset( $response['faultString'] ) ) { |
| 188 | return new WP_Error( $response['faultCode'], $response['faultString'] ); |
| 189 | } |
| 190 | |
| 191 | return $response; |
| 192 | }, |
| 193 | (array) $xml->getResponse() |
| 194 | ); |
| 195 | |
| 196 | return $results; |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | * Attach all stored licenses. |
| 201 | * |
| 202 | * @return array|WP_Error Results for each license (which may include WP_Error instances) or a WP_Error instance. |
| 203 | */ |
| 204 | public function attach_stored_licenses() { |
| 205 | $licenses = $this->stored_licenses(); |
| 206 | $results = $this->attach_licenses( $licenses ); |
| 207 | |
| 208 | if ( is_wp_error( $results ) ) { |
| 209 | if ( 'request_failed' === $results->get_error_code() ) { |
| 210 | $this->log_error( |
| 211 | __( 'Failed to attach your Jetpack license(s). Please try reconnecting Jetpack.', 'jetpack-licensing' ) |
| 212 | ); |
| 213 | } |
| 214 | |
| 215 | return $results; |
| 216 | } |
| 217 | |
| 218 | $failed = array(); |
| 219 | |
| 220 | foreach ( $results as $index => $result ) { |
| 221 | if ( isset( $licenses[ $index ] ) && is_wp_error( $result ) ) { |
| 222 | $failed[] = $licenses[ $index ]; |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | if ( ! empty( $failed ) ) { |
| 227 | $this->log_error( |
| 228 | sprintf( |
| 229 | /* translators: %s is a comma-separated list of license keys. */ |
| 230 | __( 'The following Jetpack licenses are invalid, already in use, or revoked: %s', 'jetpack-licensing' ), |
| 231 | implode( ', ', $failed ) |
| 232 | ) |
| 233 | ); |
| 234 | } |
| 235 | |
| 236 | return $results; |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Attach all stored licenses during connection flow for the connection owner. |
| 241 | * |
| 242 | * @return void |
| 243 | */ |
| 244 | public function attach_stored_licenses_on_connection() { |
| 245 | if ( $this->connection()->is_connection_owner() ) { |
| 246 | $this->attach_stored_licenses(); |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * Is the current user allowed to use the Licensing Input UI? |
| 252 | * |
| 253 | * @since 1.4.0 |
| 254 | * @return bool |
| 255 | */ |
| 256 | public static function is_licensing_input_enabled() { |
| 257 | /** |
| 258 | * Filter that checks if the user is allowed to see the Licensing UI. `true` enables it. |
| 259 | * |
| 260 | * @since 1.4.0 |
| 261 | * |
| 262 | * @param bool False by default. |
| 263 | */ |
| 264 | return apply_filters( 'jetpack_licensing_ui_enabled', false ) && current_user_can( 'jetpack_connect_user' ); |
| 265 | } |
| 266 | |
| 267 | /** |
| 268 | * Gets the user-licensing activation notice dismissal info. |
| 269 | * |
| 270 | * @since 10.4.0 |
| 271 | * @return array |
| 272 | */ |
| 273 | public function get_license_activation_notice_dismiss() { |
| 274 | |
| 275 | $default = array( |
| 276 | 'last_detached_count' => null, |
| 277 | 'last_dismissed_time' => null, |
| 278 | ); |
| 279 | |
| 280 | if ( $this->connection()->is_user_connected() && $this->connection()->is_connection_owner() ) { |
| 281 | return Jetpack_Options::get_option( 'licensing_activation_notice_dismiss', $default ); |
| 282 | } |
| 283 | |
| 284 | return $default; |
| 285 | } |
| 286 | |
| 287 | /** |
| 288 | * Load current user's licenses. |
| 289 | * |
| 290 | * @param bool $unattached_only Only return unattached and not revoked licenses. |
| 291 | * |
| 292 | * @return array |
| 293 | */ |
| 294 | public function get_user_licenses( $unattached_only = false ) { |
| 295 | $licenses = Endpoints::get_user_licenses(); |
| 296 | |
| 297 | if ( empty( $licenses->items ) ) { |
| 298 | return array(); |
| 299 | } |
| 300 | |
| 301 | $items = $licenses->items; |
| 302 | |
| 303 | if ( $unattached_only ) { |
| 304 | $items = array_filter( |
| 305 | $items, |
| 306 | static function ( $item ) { |
| 307 | return $item->attached_at === null && $item->revoked_at === null; |
| 308 | } |
| 309 | ); |
| 310 | } |
| 311 | |
| 312 | return $items; |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * If the destination URL is checkout page, |
| 317 | * see if there are unattached licenses they could use instead of getting a new one. |
| 318 | * If found, redirect the user to license activation. |
| 319 | * |
| 320 | * @param string $dest_url User's destination URL. |
| 321 | * |
| 322 | * @return void |
| 323 | */ |
| 324 | public function handle_user_connected_redirect( $dest_url ) { |
| 325 | if ( ! preg_match( '#^https://[^/]+/checkout/#i', $dest_url ) ) { |
| 326 | return; |
| 327 | } |
| 328 | |
| 329 | $licenses = $this->get_user_licenses( true ); |
| 330 | $plugin_slug = null; |
| 331 | |
| 332 | $query_string = wp_parse_url( $dest_url, PHP_URL_QUERY ); |
| 333 | if ( $query_string ) { |
| 334 | parse_str( $query_string, $query_args ); |
| 335 | |
| 336 | if ( $query_args['redirect_to'] |
| 337 | && preg_match( '/^admin\.php\?page=(jetpack-\w+)/i', $query_args['redirect_to'], $matches ) |
| 338 | ) { |
| 339 | $plugin_slug = $matches[1]; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Check for the user's unattached licenses. |
| 345 | * |
| 346 | * @since 3.8.2 |
| 347 | * |
| 348 | * @param bool $has_license Whether a license was already found. |
| 349 | * @param array $licenses Unattached licenses belonging to the user. |
| 350 | * @param string $plugin_slug Slug of the plugin that initiated the flow. |
| 351 | */ |
| 352 | if ( $plugin_slug && count( $licenses ) |
| 353 | && apply_filters( 'jetpack_connection_user_has_license', false, $licenses, $plugin_slug ) |
| 354 | ) { |
| 355 | wp_safe_redirect( '/wp-admin/admin.php?page=my-jetpack#/add-license' ); |
| 356 | exit( 0 ); |
| 357 | } |
| 358 | } |
| 359 | } |