Base.php
| 1 | <?php |
| 2 | /** |
| 3 | * WooCommerce Plugin Framework |
| 4 | * |
| 5 | * This source file is subject to the GNU General Public License v3.0 |
| 6 | * that is bundled with this package in the file license.txt. |
| 7 | * It is also available through the world-wide-web at this URL: |
| 8 | * http://www.gnu.org/licenses/gpl-3.0.html GNU General Public License v3.0 or later |
| 9 | * If you did not receive a copy of the license and are unable to |
| 10 | * obtain it through the world-wide-web, please send an email |
| 11 | * to license@skyverge.com so we can send you a copy immediately. |
| 12 | * |
| 13 | * @since 3.0.0 |
| 14 | * @author WooCommerce / SkyVerge |
| 15 | * @copyright Copyright (c) 2013-2019, SkyVerge, Inc. |
| 16 | * @license http://www.gnu.org/licenses/gpl-3.0.html GNU General Public License v3.0 or later |
| 17 | */ |
| 18 | |
| 19 | namespace WooCommerce\Square\Framework\Api; |
| 20 | |
| 21 | use WooCommerce; |
| 22 | use WooCommerce\Square\Framework\Square_Helper; |
| 23 | |
| 24 | defined( 'ABSPATH' ) or exit; |
| 25 | |
| 26 | /** |
| 27 | * Base API Class |
| 28 | * |
| 29 | * This class provides a standardized framework for constructing an API wrapper |
| 30 | * to external services. It is designed to be extremely flexible. |
| 31 | */ |
| 32 | abstract class Base { |
| 33 | |
| 34 | /** @var string request method, defaults to POST */ |
| 35 | protected $request_method = 'POST'; |
| 36 | |
| 37 | /** @var string URI used for the request */ |
| 38 | protected $request_uri; |
| 39 | |
| 40 | /** @var array request headers */ |
| 41 | protected $request_headers = array(); |
| 42 | |
| 43 | /** @var string request user-agent */ |
| 44 | protected $request_user_agent; |
| 45 | |
| 46 | /** @var string request HTTP version, defaults to 1.0 */ |
| 47 | protected $request_http_version = '1.0'; |
| 48 | |
| 49 | /** @var string request duration */ |
| 50 | protected $request_duration; |
| 51 | |
| 52 | /** @var API_Request|object request */ |
| 53 | protected $request; |
| 54 | |
| 55 | /** @var string response code */ |
| 56 | protected $response_code; |
| 57 | |
| 58 | /** @var string response message */ |
| 59 | protected $response_message; |
| 60 | |
| 61 | /** @var array response headers */ |
| 62 | protected $response_headers; |
| 63 | |
| 64 | /** @var string raw response body */ |
| 65 | protected $raw_response_body; |
| 66 | |
| 67 | /** @var string response handler class name */ |
| 68 | protected $response_handler; |
| 69 | |
| 70 | /** @var API_Response|object response */ |
| 71 | protected $response; |
| 72 | |
| 73 | /** |
| 74 | * Perform the request and return the parsed response |
| 75 | * |
| 76 | * @since 3.0.0 |
| 77 | * |
| 78 | * @param API_Request|object $request class instance which implements API_Request |
| 79 | * @return API_Response|object class instance which implements API_Response |
| 80 | * @throws API_Exception may be thrown in implementations |
| 81 | */ |
| 82 | protected function perform_request( $request ) { |
| 83 | |
| 84 | // ensure API is in its default state |
| 85 | $this->reset_response(); |
| 86 | |
| 87 | // save the request object |
| 88 | $this->request = $request; |
| 89 | |
| 90 | $start_time = microtime( true ); |
| 91 | |
| 92 | // if this API requires TLS v1.2, force it |
| 93 | if ( $this->require_tls_1_2() ) { |
| 94 | add_action( 'http_api_curl', array( $this, 'set_tls_1_2_request' ), 10, 3 ); |
| 95 | } |
| 96 | |
| 97 | // perform the request |
| 98 | $response = $this->do_remote_request( $this->get_request_uri(), $this->get_request_args() ); |
| 99 | |
| 100 | // calculate request duration |
| 101 | $this->request_duration = round( microtime( true ) - $start_time, 5 ); |
| 102 | |
| 103 | try { |
| 104 | |
| 105 | // parse & validate response |
| 106 | $response = $this->handle_response( $response ); |
| 107 | |
| 108 | } catch ( \Exception $e ) { |
| 109 | |
| 110 | // alert other actors that a request has been made |
| 111 | $this->broadcast_request(); |
| 112 | |
| 113 | throw $e; |
| 114 | } |
| 115 | |
| 116 | return $response; |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Simple wrapper for wp_remote_request() so child classes can override this |
| 121 | * and provide their own transport mechanism if needed, e.g. a custom |
| 122 | * cURL implementation |
| 123 | * |
| 124 | * @since 3.0.0 |
| 125 | * |
| 126 | * @param string $request_uri |
| 127 | * @param string $request_args |
| 128 | * @return array|\WP_Error |
| 129 | */ |
| 130 | protected function do_remote_request( $request_uri, $request_args ) { |
| 131 | |
| 132 | return wp_safe_remote_request( $request_uri, $request_args ); |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Handle and parse the response |
| 137 | * |
| 138 | * @since 3.0.0 |
| 139 | * @param array|\WP_Error $response response data |
| 140 | * @throws \Exception network issues, timeouts, API errors, etc |
| 141 | * @return API_Request|object request class instance that implements API_Request |
| 142 | */ |
| 143 | protected function handle_response( $response ) { |
| 144 | |
| 145 | // check for WP HTTP API specific errors (network timeout, etc) |
| 146 | if ( is_wp_error( $response ) ) { |
| 147 | throw new \Exception( $response->get_error_message(), (int) $response->get_error_code() ); |
| 148 | } |
| 149 | |
| 150 | // set response data |
| 151 | $this->response_code = wp_remote_retrieve_response_code( $response ); |
| 152 | $this->response_message = wp_remote_retrieve_response_message( $response ); |
| 153 | $this->raw_response_body = wp_remote_retrieve_body( $response ); |
| 154 | |
| 155 | $response_headers = wp_remote_retrieve_headers( $response ); |
| 156 | |
| 157 | // WP 4.6+ returns an object |
| 158 | if ( is_object( $response_headers ) ) { |
| 159 | $response_headers = $response_headers->getAll(); |
| 160 | } |
| 161 | |
| 162 | $this->response_headers = $response_headers; |
| 163 | |
| 164 | // parse the response body and tie it to the request |
| 165 | $this->response = $this->get_parsed_response( $this->raw_response_body ); |
| 166 | |
| 167 | // fire do_action() so other actors can act on request/response data, |
| 168 | // primarily used for logging |
| 169 | $this->broadcast_request(); |
| 170 | |
| 171 | return $this->response; |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Return the parsed response object for the request |
| 176 | * |
| 177 | * @since 3.0.0 |
| 178 | * @param string $raw_response_body |
| 179 | * @return object|API_Request response class instance which implements API_Request |
| 180 | */ |
| 181 | protected function get_parsed_response( $raw_response_body ) { |
| 182 | |
| 183 | $handler_class = $this->get_response_handler(); |
| 184 | |
| 185 | return new $handler_class( $raw_response_body ); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Alert other actors that a request has been performed. This is primarily used |
| 190 | * for request logging. |
| 191 | * |
| 192 | * @since 3.0.0 |
| 193 | */ |
| 194 | protected function broadcast_request() { |
| 195 | |
| 196 | $request_data = array( |
| 197 | 'method' => $this->get_request_method(), |
| 198 | 'uri' => $this->get_request_uri(), |
| 199 | 'user-agent' => $this->get_request_user_agent(), |
| 200 | 'headers' => $this->get_sanitized_request_headers(), |
| 201 | 'body' => $this->get_sanitized_request_body(), |
| 202 | 'duration' => $this->get_request_duration() . 's', // seconds |
| 203 | ); |
| 204 | |
| 205 | $response_data = array( |
| 206 | 'code' => $this->get_response_code(), |
| 207 | 'message' => $this->get_response_message(), |
| 208 | 'headers' => $this->get_response_headers(), |
| 209 | 'body' => $this->get_sanitized_response_body() ? $this->get_sanitized_response_body() : $this->get_raw_response_body(), |
| 210 | ); |
| 211 | |
| 212 | /** |
| 213 | * API Base Request Performed Action. |
| 214 | * |
| 215 | * Fired when an API request is performed via this base class. Plugins can |
| 216 | * hook into this to log request/response data. |
| 217 | * |
| 218 | * @since 3.0.0 |
| 219 | * @param array $request_data { |
| 220 | * @type string $method request method, e.g. POST |
| 221 | * @type string $uri request URI |
| 222 | * @type string $user-agent |
| 223 | * @type string $headers request headers |
| 224 | * @type string $body request body |
| 225 | * @type string $duration in seconds |
| 226 | * } |
| 227 | * @param array $response data { |
| 228 | * @type string $code response HTTP code |
| 229 | * @type string $message response message |
| 230 | * @type string $headers response HTTP headers |
| 231 | * @type string $body response body |
| 232 | * } |
| 233 | * @param Base $this instance |
| 234 | */ |
| 235 | do_action( 'wc_' . $this->get_api_id() . '_api_request_performed', $request_data, $response_data, $this ); |
| 236 | } |
| 237 | |
| 238 | /** |
| 239 | * Reset the API response members to their |
| 240 | * |
| 241 | * @since 3.0.0 |
| 242 | */ |
| 243 | protected function reset_response() { |
| 244 | |
| 245 | $this->response_code = null; |
| 246 | $this->response_message = null; |
| 247 | $this->response_headers = null; |
| 248 | $this->raw_response_body = null; |
| 249 | $this->response = null; |
| 250 | $this->request_duration = null; |
| 251 | } |
| 252 | |
| 253 | /** |
| 254 | * Get the request URI |
| 255 | * |
| 256 | * @since 3.0.0 |
| 257 | * @return string |
| 258 | */ |
| 259 | protected function get_request_uri() { |
| 260 | |
| 261 | $uri = $this->request_uri . $this->get_request_path(); |
| 262 | |
| 263 | // append any query params to the URL when necessary |
| 264 | $query = $this->get_request_query(); |
| 265 | if ( $query ) { |
| 266 | |
| 267 | $url_parts = parse_url( $uri ); |
| 268 | |
| 269 | // if the URL already has some query params, add to them |
| 270 | if ( ! empty( $url_parts['query'] ) ) { |
| 271 | $query = '&' . $query; |
| 272 | } else { |
| 273 | $query = '?' . $query; |
| 274 | } |
| 275 | |
| 276 | $uri = untrailingslashit( $uri ) . $query; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Request URI Filter. |
| 281 | * |
| 282 | * Allow actors to filter the request URI. Note that child classes can override |
| 283 | * this method, which means this filter may be invoked prior to the overridden |
| 284 | * method. |
| 285 | * |
| 286 | * @since 3.0.0 |
| 287 | * |
| 288 | * @param string $uri current request URI |
| 289 | * @param Base class instance |
| 290 | */ |
| 291 | return apply_filters( 'wc_' . $this->get_api_id() . '_api_request_uri', $uri, $this ); |
| 292 | } |
| 293 | |
| 294 | /** |
| 295 | * Gets the request path. |
| 296 | * |
| 297 | * @since 3.0.0 |
| 298 | * @return string |
| 299 | */ |
| 300 | protected function get_request_path() { |
| 301 | |
| 302 | return ( $this->get_request() ) ? $this->get_request()->get_path() : ''; |
| 303 | } |
| 304 | |
| 305 | /** |
| 306 | * Gets the request URL query. |
| 307 | * |
| 308 | * @since 3.0.0 |
| 309 | * |
| 310 | * @return string |
| 311 | */ |
| 312 | protected function get_request_query() { |
| 313 | |
| 314 | $query = ''; |
| 315 | $request = $this->get_request(); |
| 316 | |
| 317 | if ( $request && in_array( strtoupper( $this->get_request_method() ), array( 'GET', 'HEAD' ), true ) ) { |
| 318 | |
| 319 | $params = $request->get_params(); |
| 320 | |
| 321 | if ( ! empty( $params ) ) { |
| 322 | $query = http_build_query( $params, '', '&' ); |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | return $query; |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * Get the request arguments in the format required by wp_remote_request() |
| 331 | * |
| 332 | * @since 3.0.0 |
| 333 | * |
| 334 | * @return array |
| 335 | */ |
| 336 | protected function get_request_args() { |
| 337 | |
| 338 | $args = array( |
| 339 | 'method' => $this->get_request_method(), |
| 340 | 'timeout' => MINUTE_IN_SECONDS, |
| 341 | 'redirection' => 0, |
| 342 | 'httpversion' => $this->get_request_http_version(), |
| 343 | 'sslverify' => true, |
| 344 | 'blocking' => true, |
| 345 | 'user-agent' => $this->get_request_user_agent(), |
| 346 | 'headers' => $this->get_request_headers(), |
| 347 | 'body' => $this->get_request_body(), |
| 348 | 'cookies' => array(), |
| 349 | ); |
| 350 | |
| 351 | /** |
| 352 | * Request arguments. |
| 353 | * |
| 354 | * Allow other actors to filter the request arguments. Note that |
| 355 | * child classes can override this method, which means this filter may |
| 356 | * not be invoked, or may be invoked prior to the overridden method |
| 357 | * |
| 358 | * @since 3.0.0 |
| 359 | * @param array $args request arguments |
| 360 | * @param Base class instance |
| 361 | */ |
| 362 | return apply_filters( 'wc_' . $this->get_api_id() . '_http_request_args', $args, $this ); |
| 363 | } |
| 364 | |
| 365 | /** |
| 366 | * Get the request method, POST by default |
| 367 | * |
| 368 | * @since 3.0.0 |
| 369 | * @return string |
| 370 | */ |
| 371 | protected function get_request_method() { |
| 372 | // if the request object specifies the method to use, use that, otherwise use the API default |
| 373 | return $this->get_request() && $this->get_request()->get_method() ? $this->get_request()->get_method() : $this->request_method; |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * Gets the request body. |
| 378 | * |
| 379 | * @since 3.0.0 |
| 380 | * @return string |
| 381 | */ |
| 382 | protected function get_request_body() { |
| 383 | |
| 384 | // GET & HEAD requests don't support a body |
| 385 | if ( in_array( strtoupper( $this->get_request_method() ), array( 'GET', 'HEAD' ), true ) ) { |
| 386 | return ''; |
| 387 | } |
| 388 | |
| 389 | return ( $this->get_request() && $this->get_request()->to_string() ) ? $this->get_request()->to_string() : ''; |
| 390 | } |
| 391 | |
| 392 | /** |
| 393 | * Gets the sanitized request body, for logging. |
| 394 | * |
| 395 | * @since 3.0.0 |
| 396 | * @return string |
| 397 | */ |
| 398 | protected function get_sanitized_request_body() { |
| 399 | |
| 400 | // GET & HEAD requests don't support a body |
| 401 | if ( in_array( strtoupper( $this->get_request_method() ), array( 'GET', 'HEAD' ), true ) ) { |
| 402 | return ''; |
| 403 | } |
| 404 | |
| 405 | return ( $this->get_request() && $this->get_request()->to_string_safe() ) ? $this->get_request()->to_string_safe() : ''; |
| 406 | } |
| 407 | |
| 408 | /** |
| 409 | * Get the request HTTP version, 1.1 by default |
| 410 | * |
| 411 | * @since 3.0.0 |
| 412 | * @return string |
| 413 | */ |
| 414 | protected function get_request_http_version() { |
| 415 | |
| 416 | return $this->request_http_version; |
| 417 | } |
| 418 | |
| 419 | /** |
| 420 | * Get the request headers |
| 421 | * |
| 422 | * @since 3.0.0 |
| 423 | * @return array |
| 424 | */ |
| 425 | protected function get_request_headers() { |
| 426 | return $this->request_headers; |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * Get sanitized request headers suitable for logging, stripped of any |
| 431 | * confidential information |
| 432 | * |
| 433 | * The `Authorization` header is sanitized automatically. |
| 434 | * |
| 435 | * Child classes that implement any custom authorization headers should |
| 436 | * override this method to perform sanitization. |
| 437 | * |
| 438 | * @since 3.0.0 |
| 439 | * @return array |
| 440 | */ |
| 441 | protected function get_sanitized_request_headers() { |
| 442 | |
| 443 | $headers = $this->get_request_headers(); |
| 444 | |
| 445 | if ( ! empty( $headers['Authorization'] ) ) { |
| 446 | $headers['Authorization'] = str_repeat( '*', strlen( $headers['Authorization'] ) ); |
| 447 | } |
| 448 | |
| 449 | return $headers; |
| 450 | } |
| 451 | |
| 452 | /** |
| 453 | * Get the request user agent, defaults to: |
| 454 | * |
| 455 | * Dasherized-Plugin-Name/Plugin-Version (WooCommerce/WC-Version; WordPress/WP-Version) |
| 456 | * |
| 457 | * @since 3.0.0 |
| 458 | * @return string |
| 459 | */ |
| 460 | protected function get_request_user_agent() { |
| 461 | |
| 462 | return sprintf( '%s/%s (WooCommerce/%s; WordPress/%s)', str_replace( ' ', '-', $this->get_plugin()->get_plugin_name() ), $this->get_plugin()->get_version(), WC_VERSION, $GLOBALS['wp_version'] ); |
| 463 | } |
| 464 | |
| 465 | /** |
| 466 | * Get the request duration in seconds, rounded to the 5th decimal place |
| 467 | * |
| 468 | * @since 3.0.0 |
| 469 | * @return string |
| 470 | */ |
| 471 | protected function get_request_duration() { |
| 472 | return $this->request_duration; |
| 473 | } |
| 474 | |
| 475 | /** |
| 476 | * Get the response handler class name |
| 477 | * |
| 478 | * @since 3.0.0 |
| 479 | * @return string |
| 480 | */ |
| 481 | protected function get_response_handler() { |
| 482 | return $this->response_handler; |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * Get the response code |
| 487 | * |
| 488 | * @since 3.0.0 |
| 489 | * @return string |
| 490 | */ |
| 491 | protected function get_response_code() { |
| 492 | return $this->response_code; |
| 493 | } |
| 494 | |
| 495 | /** |
| 496 | * Get the response message |
| 497 | * |
| 498 | * @since 3.0.0 |
| 499 | * @return string |
| 500 | */ |
| 501 | protected function get_response_message() { |
| 502 | return $this->response_message; |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * Get the response headers |
| 507 | * |
| 508 | * @since 3.0.0 |
| 509 | * @return array |
| 510 | */ |
| 511 | protected function get_response_headers() { |
| 512 | return $this->response_headers; |
| 513 | } |
| 514 | |
| 515 | /** |
| 516 | * Get the raw response body, prior to any parsing or sanitization |
| 517 | * |
| 518 | * @since 3.0.0 |
| 519 | * @return string |
| 520 | */ |
| 521 | protected function get_raw_response_body() { |
| 522 | return $this->raw_response_body; |
| 523 | } |
| 524 | |
| 525 | /** |
| 526 | * Get the sanitized response body, provided by the response class |
| 527 | * to_string_safe() method |
| 528 | * |
| 529 | * @since 3.0.0 |
| 530 | * @return string|null |
| 531 | */ |
| 532 | protected function get_sanitized_response_body() { |
| 533 | return is_callable( array( $this->get_response(), 'to_string_safe' ) ) ? $this->get_response()->to_string_safe() : null; |
| 534 | } |
| 535 | |
| 536 | /** |
| 537 | * Returns the most recent request object. |
| 538 | * |
| 539 | * @since 3.0.0 |
| 540 | * |
| 541 | * @return API_Request|object the most recent request object |
| 542 | */ |
| 543 | public function get_request() { |
| 544 | |
| 545 | return $this->request; |
| 546 | } |
| 547 | |
| 548 | /** |
| 549 | * Returns the most recent response object. |
| 550 | * |
| 551 | * @since 3.0.0 |
| 552 | * |
| 553 | * @return API_Response|object the most recent response object |
| 554 | */ |
| 555 | public function get_response() { |
| 556 | |
| 557 | return $this->response; |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * Get the ID for the API, used primarily to namespace the action name |
| 562 | * for broadcasting requests |
| 563 | * |
| 564 | * @since 3.0.0 |
| 565 | * @return string |
| 566 | */ |
| 567 | protected function get_api_id() { |
| 568 | |
| 569 | return 'square'; |
| 570 | } |
| 571 | |
| 572 | /** |
| 573 | * Return a new request object |
| 574 | * |
| 575 | * Child classes must implement this to return an object that implements |
| 576 | * API_Request which should be used in the child class API methods |
| 577 | * to build the request. The returned API_Request should be passed |
| 578 | * to self::perform_request() by your concrete API methods |
| 579 | * |
| 580 | * @since 3.0.0 |
| 581 | * |
| 582 | * @param array $args optional request arguments |
| 583 | * @return API_Request|object |
| 584 | */ |
| 585 | abstract protected function get_new_request( $args = array() ); |
| 586 | |
| 587 | /** |
| 588 | * Return the plugin class instance associated with this API |
| 589 | * |
| 590 | * Child classes must implement this to return their plugin class instance |
| 591 | * |
| 592 | * This is used for defining the plugin ID used in filter names, as well |
| 593 | * as the plugin name used for the default user agent. |
| 594 | * |
| 595 | * @since 3.0.0 |
| 596 | * |
| 597 | * @return WooCommerce\Square\Framework\Plugin |
| 598 | */ |
| 599 | abstract protected function get_plugin(); |
| 600 | |
| 601 | /** |
| 602 | * Set the response handler class name. This class will be instantiated |
| 603 | * to parse the response for the request. |
| 604 | * |
| 605 | * @since 3.0.0 |
| 606 | * |
| 607 | * @param string $handler handle class name |
| 608 | */ |
| 609 | protected function set_response_handler( $handler ) { |
| 610 | $this->response_handler = $handler; |
| 611 | } |
| 612 | |
| 613 | /** |
| 614 | * Maybe force TLS v1.2 requests. |
| 615 | * |
| 616 | * @since 3.0.0 |
| 617 | * |
| 618 | * @param resource $handle the cURL handle returned by curl_init() (passed by reference) |
| 619 | * @param array $r the HTTP request arguments |
| 620 | * @param $url string the request URL |
| 621 | */ |
| 622 | public function set_tls_1_2_request( $handle, $r, $url ) { |
| 623 | |
| 624 | if ( ! Square_Helper::str_starts_with( $url, 'https://' ) ) { |
| 625 | return; |
| 626 | } |
| 627 | |
| 628 | curl_setopt( $handle, CURLOPT_SSLVERSION, 6 ); |
| 629 | } |
| 630 | |
| 631 | /** |
| 632 | * Determine if TLS v1.2 is required for API requests. |
| 633 | * |
| 634 | * Subclasses should override this to return true if TLS v1.2 is required. |
| 635 | * |
| 636 | * @since 3.0.0 |
| 637 | * @return bool |
| 638 | */ |
| 639 | public function require_tls_1_2() { |
| 640 | return false; |
| 641 | } |
| 642 | |
| 643 | /** |
| 644 | * Determines if TLS 1.2 is available. |
| 645 | * |
| 646 | * @since 3.0.0 |
| 647 | * |
| 648 | * @return bool |
| 649 | */ |
| 650 | public function is_tls_1_2_available() { |
| 651 | |
| 652 | // assume availability to avoid notices for unknown SSL types |
| 653 | $is_available = true; |
| 654 | |
| 655 | // check the cURL version if installed |
| 656 | if ( is_callable( 'curl_version' ) ) { |
| 657 | |
| 658 | $versions = curl_version(); |
| 659 | |
| 660 | // cURL 7.34.0 is considered the minimum version that supports TLS 1.2 |
| 661 | if ( version_compare( $versions['version'], '7.34.0', '<' ) ) { |
| 662 | $is_available = false; |
| 663 | } |
| 664 | } |
| 665 | |
| 666 | /** |
| 667 | * Filters whether TLS 1.2 is available. |
| 668 | * |
| 669 | * @since 3.0.0 |
| 670 | * |
| 671 | * @param bool $is_available whether TLS 1.2 is available |
| 672 | * @param Base $api API class instance |
| 673 | */ |
| 674 | return apply_filters( 'wc_square_api_is_tls_1_2_available', $is_available, $this ); |
| 675 | } |
| 676 | } |
| 677 |