| @@ -1,745 +1,741 @@ | ||
| 1 | -<?php | |
| 2 | - /** | |
| 3 | - * Copyright 2016 Freemius, Inc. | |
| 4 | - * | |
| 5 | - * Licensed under the GPL v2 (the "License"); you may | |
| 6 | - * not use this file except in compliance with the License. You may obtain | |
| 7 | - * a copy of the License at | |
| 8 | - * | |
| 9 | - * http://choosealicense.com/licenses/gpl-v2/ | |
| 10 | - * | |
| 11 | - * Unless required by applicable law or agreed to in writing, software | |
| 12 | - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | |
| 13 | - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | |
| 14 | - * License for the specific language governing permissions and limitations | |
| 15 | - * under the License. | |
| 16 | - */ | |
| 17 | - if ( ! defined( 'ABSPATH' ) ) { | |
| 18 | - exit; | |
| 19 | - } | |
| 20 | - | |
| 21 | - require_once dirname( __FILE__ ) . '/FreemiusBase.php'; | |
| 22 | - | |
| 23 | - if ( ! defined( 'FS_SDK__USER_AGENT' ) ) { | |
| 24 | - define( 'FS_SDK__USER_AGENT', 'fs-php-' . Freemius_Api_Base::VERSION ); | |
| 25 | - } | |
| 26 | - | |
| 27 | - if ( ! defined( 'FS_SDK__SIMULATE_NO_CURL' ) ) { | |
| 28 | - define( 'FS_SDK__SIMULATE_NO_CURL', false ); | |
| 29 | - } | |
| 30 | - | |
| 31 | - if ( ! defined( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_CLOUDFLARE' ) ) { | |
| 32 | - define( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_CLOUDFLARE', false ); | |
| 33 | - } | |
| 34 | - | |
| 35 | - if ( ! defined( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_SQUID_ACL' ) ) { | |
| 36 | - define( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_SQUID_ACL', false ); | |
| 37 | - } | |
| 38 | - | |
| 39 | - if ( ! defined( 'FS_SDK__HAS_CURL' ) ) { | |
| 40 | - if ( FS_SDK__SIMULATE_NO_CURL ) { | |
| 41 | - define( 'FS_SDK__HAS_CURL', false ); | |
| 42 | - } else { | |
| 43 | - $curl_required_methods = array( | |
| 44 | - 'curl_version', | |
| 45 | - 'curl_exec', | |
| 46 | - 'curl_init', | |
| 47 | - 'curl_close', | |
| 48 | - 'curl_setopt', | |
| 49 | - 'curl_setopt_array', | |
| 50 | - 'curl_error', | |
| 51 | - ); | |
| 52 | - | |
| 53 | - $has_curl = true; | |
| 54 | - foreach ( $curl_required_methods as $m ) { | |
| 55 | - if ( ! function_exists( $m ) ) { | |
| 56 | - $has_curl = false; | |
| 57 | - break; | |
| 58 | - } | |
| 59 | - } | |
| 60 | - | |
| 61 | - define( 'FS_SDK__HAS_CURL', $has_curl ); | |
| 62 | - } | |
| 63 | - } | |
| 64 | - | |
| 65 | - if ( ! defined( 'FS_SDK__SSLVERIFY' ) ) { | |
| 66 | - define( 'FS_SDK__SSLVERIFY', false ); | |
| 67 | - } | |
| 68 | - | |
| 69 | - $curl_version = FS_SDK__HAS_CURL ? | |
| 70 | - curl_version() : | |
| 71 | - array( 'version' => '7.37' ); | |
| 72 | - | |
| 73 | - if ( ! defined( 'FS_API__PROTOCOL' ) ) { | |
| 74 | - define( 'FS_API__PROTOCOL', version_compare( $curl_version['version'], '7.37', '>=' ) ? 'https' : 'http' ); | |
| 75 | - } | |
| 76 | - | |
| 77 | - if ( ! defined( 'FS_API__LOGGER_ON' ) ) { | |
| 78 | - define( 'FS_API__LOGGER_ON', false ); | |
| 79 | - } | |
| 80 | - | |
| 81 | - if ( ! defined( 'FS_API__ADDRESS' ) ) { | |
| 82 | - define( 'FS_API__ADDRESS', '://api.freemius.com' ); | |
| 83 | - } | |
| 84 | - if ( ! defined( 'FS_API__SANDBOX_ADDRESS' ) ) { | |
| 85 | - define( 'FS_API__SANDBOX_ADDRESS', '://sandbox-api.freemius.com' ); | |
| 86 | - } | |
| 87 | - | |
| 88 | - if ( ! class_exists( 'Freemius_Api_WordPress' ) ) { | |
| 89 | - class Freemius_Api_WordPress extends Freemius_Api_Base { | |
| 90 | - private static $_logger = array(); | |
| 91 | - | |
| 92 | - /** | |
| 93 | - * @param string $pScope 'app', 'developer', 'user' or 'install'. | |
| 94 | - * @param number $pID Element's id. | |
| 95 | - * @param string $pPublic Public key. | |
| 96 | - * @param string|bool $pSecret Element's secret key. | |
| 97 | - * @param bool $pSandbox Whether or not to run API in sandbox mode. | |
| 98 | - */ | |
| 99 | - public function __construct( $pScope, $pID, $pPublic, $pSecret = false, $pSandbox = false ) { | |
| 100 | - // If secret key not provided, use public key encryption. | |
| 101 | - if ( is_bool( $pSecret ) ) { | |
| 102 | - $pSecret = $pPublic; | |
| 103 | - } | |
| 104 | - | |
| 105 | - parent::Init( $pScope, $pID, $pPublic, $pSecret, $pSandbox ); | |
| 106 | - } | |
| 107 | - | |
| 108 | - public static function GetUrl( $pCanonizedPath = '', $pIsSandbox = false ) { | |
| 109 | - $address = ( $pIsSandbox ? FS_API__SANDBOX_ADDRESS : FS_API__ADDRESS ); | |
| 110 | - | |
| 111 | - if ( ':' === $address[0] ) { | |
| 112 | - $address = self::$_protocol . $address; | |
| 113 | - } | |
| 114 | - | |
| 115 | - return $address . $pCanonizedPath; | |
| 116 | - } | |
| 117 | - | |
| 118 | - #---------------------------------------------------------------------------------- | |
| 119 | - #region Servers Clock Diff | |
| 120 | - #---------------------------------------------------------------------------------- | |
| 121 | - | |
| 122 | - /** | |
| 123 | - * @var int Clock diff in seconds between current server to API server. | |
| 124 | - */ | |
| 125 | - private static $_clock_diff = 0; | |
| 126 | - | |
| 127 | - /** | |
| 128 | - * Set clock diff for all API calls. | |
| 129 | - * | |
| 130 | - * @since 1.0.3 | |
| 131 | - * | |
| 132 | - * @param $pSeconds | |
| 133 | - */ | |
| 134 | - public static function SetClockDiff( $pSeconds ) { | |
| 135 | - self::$_clock_diff = $pSeconds; | |
| 136 | - } | |
| 137 | - | |
| 138 | - /** | |
| 139 | - * Find clock diff between current server to API server. | |
| 140 | - * | |
| 141 | - * @since 1.0.2 | |
| 142 | - * @return int Clock diff in seconds. | |
| 143 | - */ | |
| 144 | - public static function FindClockDiff() { | |
| 145 | - $time = time(); | |
| 146 | - $pong = self::Ping(); | |
| 147 | - | |
| 148 | - return ( $time - strtotime( $pong->timestamp ) ); | |
| 149 | - } | |
| 150 | - | |
| 151 | - #endregion | |
| 152 | - | |
| 153 | - /** | |
| 154 | - * @var string http or https | |
| 155 | - */ | |
| 156 | - private static $_protocol = FS_API__PROTOCOL; | |
| 157 | - | |
| 158 | - /** | |
| 159 | - * Set API connection protocol. | |
| 160 | - * | |
| 161 | - * @since 1.0.4 | |
| 162 | - */ | |
| 163 | - public static function SetHttp() { | |
| 164 | - self::$_protocol = 'http'; | |
| 165 | - } | |
| 166 | - | |
| 167 | - /** | |
| 168 | - * Sets API connection protocol to HTTPS. | |
| 169 | - * | |
| 170 | - * @since 2.5.4 | |
| 171 | - */ | |
| 172 | - public static function SetHttps() { | |
| 173 | - self::$_protocol = 'https'; | |
| 174 | - } | |
| 175 | - | |
| 176 | - /** | |
| 177 | - * @since 1.0.4 | |
| 178 | - * | |
| 179 | - * @return bool | |
| 180 | - */ | |
| 181 | - public static function IsHttps() { | |
| 182 | - return ( 'https' === self::$_protocol ); | |
| 183 | - } | |
| 184 | - | |
| 185 | - /** | |
| 186 | - * Sign request with the following HTTP headers: | |
| 187 | - * Content-MD5: MD5(HTTP Request body) | |
| 188 | - * Date: Current date (i.e Sat, 14 Feb 2016 20:24:46 +0000) | |
| 189 | - * Authorization: FS {scope_entity_id}:{scope_entity_public_key}:base64encode(sha256(string_to_sign, | |
| 190 | - * {scope_entity_secret_key})) | |
| 191 | - * | |
| 192 | - * @param string $pResourceUrl | |
| 193 | - * @param array $pWPRemoteArgs | |
| 194 | - * | |
| 195 | - * @return array | |
| 196 | - */ | |
| 197 | - function SignRequest( $pResourceUrl, $pWPRemoteArgs ) { | |
| 198 | - $auth = $this->GenerateAuthorizationParams( | |
| 199 | - $pResourceUrl, | |
| 200 | - $pWPRemoteArgs['method'], | |
| 201 | - ! empty( $pWPRemoteArgs['body'] ) ? $pWPRemoteArgs['body'] : '' | |
| 202 | - ); | |
| 203 | - | |
| 204 | - $pWPRemoteArgs['headers']['Date'] = $auth['date']; | |
| 205 | - $pWPRemoteArgs['headers']['Authorization'] = $auth['authorization']; | |
| 206 | - | |
| 207 | - if ( ! empty( $auth['content_md5'] ) ) { | |
| 208 | - $pWPRemoteArgs['headers']['Content-MD5'] = $auth['content_md5']; | |
| 209 | - } | |
| 210 | - | |
| 211 | - return $pWPRemoteArgs; | |
| 212 | - } | |
| 213 | - | |
| 214 | - /** | |
| 215 | - * Generate Authorization request headers: | |
| 216 | - * | |
| 217 | - * Content-MD5: MD5(HTTP Request body) | |
| 218 | - * Date: Current date (i.e Sat, 14 Feb 2016 20:24:46 +0000) | |
| 219 | - * Authorization: FS {scope_entity_id}:{scope_entity_public_key}:base64encode(sha256(string_to_sign, | |
| 220 | - * {scope_entity_secret_key})) | |
| 221 | - * | |
| 222 | - * @author Vova Feldman | |
| 223 | - * | |
| 224 | - * @param string $pResourceUrl | |
| 225 | - * @param string $pMethod | |
| 226 | - * @param string $pPostParams | |
| 227 | - * | |
| 228 | - * @return array | |
| 229 | - * @throws Freemius_Exception | |
| 230 | - */ | |
| 231 | - function GenerateAuthorizationParams( | |
| 232 | - $pResourceUrl, | |
| 233 | - $pMethod = 'GET', | |
| 234 | - $pPostParams = '' | |
| 235 | - ) { | |
| 236 | - $pMethod = strtoupper( $pMethod ); | |
| 237 | - | |
| 238 | - $eol = "\n"; | |
| 239 | - $content_md5 = ''; | |
| 240 | - $content_type = ''; | |
| 241 | - $now = ( time() - self::$_clock_diff ); | |
| 242 | - $date = date( 'r', $now ); | |
| 243 | - | |
| 244 | - if ( in_array( $pMethod, array( 'POST', 'PUT' ) ) ) { | |
| 245 | - $content_type = 'application/json'; | |
| 246 | - | |
| 247 | - if ( ! empty( $pPostParams ) ) { | |
| 248 | - $content_md5 = md5( $pPostParams ); | |
| 249 | - } | |
| 250 | - } | |
| 251 | - | |
| 252 | - $string_to_sign = implode( $eol, array( | |
| 253 | - $pMethod, | |
| 254 | - $content_md5, | |
| 255 | - $content_type, | |
| 256 | - $date, | |
| 257 | - $pResourceUrl | |
| 258 | - ) ); | |
| 259 | - | |
| 260 | - // If secret and public keys are identical, it means that | |
| 261 | - // the signature uses public key hash encoding. | |
| 262 | - $auth_type = ( $this->_secret !== $this->_public ) ? 'FS' : 'FSP'; | |
| 263 | - | |
| 264 | - $auth = array( | |
| 265 | - 'date' => $date, | |
| 266 | - 'authorization' => $auth_type . ' ' . $this->_id . ':' . | |
| 267 | - $this->_public . ':' . | |
| 268 | - self::Base64UrlEncode( hash_hmac( | |
| 269 | - 'sha256', $string_to_sign, $this->_secret | |
| 270 | - ) ) | |
| 271 | - ); | |
| 272 | - | |
| 273 | - if ( ! empty( $content_md5 ) ) { | |
| 274 | - $auth['content_md5'] = $content_md5; | |
| 275 | - } | |
| 276 | - | |
| 277 | - return $auth; | |
| 278 | - } | |
| 279 | - | |
| 280 | - /** | |
| 281 | - * Get API request URL signed via query string. | |
| 282 | - * | |
| 283 | - * @since 1.2.3 Stopped using http_build_query(). Instead, use urlencode(). In some environments the encoding of http_build_query() can generate a URL that once used with a redirect, the `&` querystring separator is escaped to `&` which breaks the URL (Added by @svovaf). | |
| 284 | - * | |
| 285 | - * @param string $pPath | |
| 286 | - * | |
| 287 | - * @throws Freemius_Exception | |
| 288 | - * | |
| 289 | - * @return string | |
| 290 | - */ | |
| 291 | - function GetSignedUrl( $pPath ) { | |
| 292 | - $resource = explode( '?', $this->CanonizePath( $pPath ) ); | |
| 293 | - $pResourceUrl = $resource[0]; | |
| 294 | - | |
| 295 | - $auth = $this->GenerateAuthorizationParams( $pResourceUrl ); | |
| 296 | - | |
| 297 | - return Freemius_Api_WordPress::GetUrl( | |
| 298 | - $pResourceUrl . '?' . | |
| 299 | - ( 1 < count( $resource ) && ! empty( $resource[1] ) ? $resource[1] . '&' : '' ) . | |
| 300 | - 'authorization=' . urlencode( $auth['authorization'] ) . | |
| 301 | - '&auth_date=' . urlencode( $auth['date'] ) | |
| 302 | - , $this->_isSandbox ); | |
| 303 | - } | |
| 304 | - | |
| 305 | - /** | |
| 306 | - * @author Vova Feldman | |
| 307 | - * | |
| 308 | - * @param string $pUrl | |
| 309 | - * @param array $pWPRemoteArgs | |
| 310 | - * | |
| 311 | - * @return mixed | |
| 312 | - */ | |
| 313 | - private static function ExecuteRequest( $pUrl, &$pWPRemoteArgs ) { | |
| 314 | - $bt = debug_backtrace(); | |
| 315 | - | |
| 316 | - $start = microtime( true ); | |
| 317 | - | |
| 318 | - $response = self::RemoteRequest( $pUrl, $pWPRemoteArgs ); | |
| 319 | - | |
| 320 | - if ( FS_API__LOGGER_ON ) { | |
| 321 | - $end = microtime( true ); | |
| 322 | - | |
| 323 | - $has_body = ( isset( $pWPRemoteArgs['body'] ) && ! empty( $pWPRemoteArgs['body'] ) ); | |
| 324 | - $is_http_error = is_wp_error( $response ); | |
| 325 | - | |
| 326 | - self::$_logger[] = array( | |
| 327 | - 'id' => count( self::$_logger ), | |
| 328 | - 'start' => $start, | |
| 329 | - 'end' => $end, | |
| 330 | - 'total' => ( $end - $start ), | |
| 331 | - 'method' => $pWPRemoteArgs['method'], | |
| 332 | - 'path' => $pUrl, | |
| 333 | - 'body' => $has_body ? $pWPRemoteArgs['body'] : null, | |
| 334 | - 'result' => ! $is_http_error ? | |
| 335 | - $response['body'] : | |
| 336 | - json_encode( $response->get_error_messages() ), | |
| 337 | - 'code' => ! $is_http_error ? $response['response']['code'] : null, | |
| 338 | - 'backtrace' => $bt, | |
| 339 | - ); | |
| 340 | - } | |
| 341 | - | |
| 342 | - return $response; | |
| 343 | - } | |
| 344 | - | |
| 345 | - /** | |
| 346 | - * @author Leo Fajardo (@leorw) | |
| 347 | - * | |
| 348 | - * @param string $pUrl | |
| 349 | - * @param array $pWPRemoteArgs | |
| 350 | - * | |
| 351 | - * @return array|WP_Error The response array or a WP_Error on failure. | |
| 352 | - */ | |
| 353 | - static function RemoteRequest( $pUrl, $pWPRemoteArgs ) { | |
| 354 | - $response = wp_remote_request( $pUrl, $pWPRemoteArgs ); | |
| 355 | - | |
| 356 | - if ( | |
| 357 | - is_array( $response ) && | |
| 358 | - ( | |
| 359 | - empty( $response['headers'] ) || | |
| 360 | - empty( $response['headers']['x-api-server'] ) | |
| 361 | - ) | |
| 362 | - ) { | |
| 363 | - // API is considered blocked if the response doesn't include the `x-api-server` header. When there's no error but this header doesn't exist, the response is usually not in the expected form (e.g., cannot be JSON-decoded). | |
| 364 | - $response = new WP_Error( 'api_blocked', htmlentities( $response['body'] ) ); | |
| 365 | - } | |
| 366 | - | |
| 367 | - return $response; | |
| 368 | - } | |
| 369 | - | |
| 370 | - /** | |
| 371 | - * @return array | |
| 372 | - */ | |
| 373 | - static function GetLogger() { | |
| 374 | - return self::$_logger; | |
| 375 | - } | |
| 376 | - | |
| 377 | - /** | |
| 378 | - * @param string $pCanonizedPath | |
| 379 | - * @param string $pMethod | |
| 380 | - * @param array $pParams | |
| 381 | - * @param null|array $pWPRemoteArgs | |
| 382 | - * @param bool $pIsSandbox | |
| 383 | - * @param null|callable $pBeforeExecutionFunction | |
| 384 | - * | |
| 385 | - * @return object[]|object|null | |
| 386 | - * | |
| 387 | - * @throws \Freemius_Exception | |
| 388 | - */ | |
| 389 | - private static function MakeStaticRequest( | |
| 390 | - $pCanonizedPath, | |
| 391 | - $pMethod = 'GET', | |
| 392 | - $pParams = array(), | |
| 393 | - $pWPRemoteArgs = null, | |
| 394 | - $pIsSandbox = false, | |
| 395 | - $pBeforeExecutionFunction = null | |
| 396 | - ) { | |
| 397 | - // Connectivity errors simulation. | |
| 398 | - if ( FS_SDK__SIMULATE_NO_API_CONNECTIVITY_CLOUDFLARE ) { | |
| 399 | - self::ThrowCloudFlareDDoSException(); | |
| 400 | - } else if ( FS_SDK__SIMULATE_NO_API_CONNECTIVITY_SQUID_ACL ) { | |
| 401 | - self::ThrowSquidAclException(); | |
| 402 | - } | |
| 403 | - | |
| 404 | - if ( empty( $pWPRemoteArgs ) ) { | |
| 405 | - $user_agent = 'Freemius/WordPress-SDK/' . Freemius_Api_Base::VERSION . '; ' . | |
| 406 | - home_url(); | |
| 407 | - | |
| 408 | - $pWPRemoteArgs = array( | |
| 409 | - 'method' => strtoupper( $pMethod ), | |
| 410 | - 'connect_timeout' => 10, | |
| 411 | - 'timeout' => WP_FS__API_TIMEOUT, | |
| 412 | - 'follow_redirects' => true, | |
| 413 | - 'redirection' => 5, | |
| 414 | - 'user-agent' => $user_agent, | |
| 415 | - 'blocking' => true, | |
| 416 | - ); | |
| 417 | - } | |
| 418 | - | |
| 419 | - if ( ! isset( $pWPRemoteArgs['headers'] ) || | |
| 420 | - ! is_array( $pWPRemoteArgs['headers'] ) | |
| 421 | - ) { | |
| 422 | - $pWPRemoteArgs['headers'] = array(); | |
| 423 | - } | |
| 424 | - | |
| 425 | - if ( in_array( $pMethod, array( 'POST', 'PUT' ) ) ) { | |
| 426 | - $pWPRemoteArgs['headers']['Content-type'] = 'application/json'; | |
| 427 | - | |
| 428 | - if ( is_array( $pParams ) && 0 < count( $pParams ) ) { | |
| 429 | - $pWPRemoteArgs['body'] = json_encode( $pParams ); | |
| 430 | - } | |
| 431 | - } | |
| 432 | - | |
| 433 | - $request_url = self::GetUrl( $pCanonizedPath, $pIsSandbox ); | |
| 434 | - | |
| 435 | - $resource = explode( '?', $pCanonizedPath ); | |
| 436 | - | |
| 437 | - if ( FS_SDK__HAS_CURL ) { | |
| 438 | - // Disable the 'Expect: 100-continue' behaviour. This causes cURL to wait | |
| 439 | - // for 2 seconds if the server does not support this header. | |
| 440 | - $pWPRemoteArgs['headers']['Expect'] = ''; | |
| 441 | - } | |
| 442 | - | |
| 443 | - if ( 'https' === substr( strtolower( $request_url ), 0, 5 ) ) { | |
| 444 | - $pWPRemoteArgs['sslverify'] = FS_SDK__SSLVERIFY; | |
| 445 | - } | |
| 446 | - | |
| 447 | - if ( false !== $pBeforeExecutionFunction && | |
| 448 | - is_callable( $pBeforeExecutionFunction ) | |
| 449 | - ) { | |
| 450 | - $pWPRemoteArgs = call_user_func( $pBeforeExecutionFunction, $resource[0], $pWPRemoteArgs ); | |
| 451 | - } | |
| 452 | - | |
| 453 | - $result = self::ExecuteRequest( $request_url, $pWPRemoteArgs ); | |
| 454 | - | |
| 455 | - if ( is_wp_error( $result ) ) { | |
| 456 | - /** | |
| 457 | - * @var WP_Error $result | |
| 458 | - */ | |
| 459 | - if ( self::IsCurlError( $result ) ) { | |
| 460 | - /** | |
| 461 | - * With dual stacked DNS responses, it's possible for a server to | |
| 462 | - * have IPv6 enabled but not have IPv6 connectivity. If this is | |
| 463 | - * the case, cURL will try IPv4 first and if that fails, then it will | |
| 464 | - * fall back to IPv6 and the error EHOSTUNREACH is returned by the | |
| 465 | - * operating system. | |
| 466 | - */ | |
| 467 | - $matches = array(); | |
| 468 | - $regex = '/Failed to connect to ([^:].*): Network is unreachable/'; | |
| 469 | - if ( preg_match( $regex, $result->get_error_message( 'http_request_failed' ), $matches ) ) { | |
| 470 | - /** | |
| 471 | - * Validate IP before calling `inet_pton()` to avoid PHP un-catchable warning. | |
| 472 | - * @author Vova Feldman (@svovaf) | |
| 473 | - */ | |
| 474 | - if ( filter_var( $matches[1], FILTER_VALIDATE_IP ) ) { | |
| 475 | - if ( strlen( inet_pton( $matches[1] ) ) === 16 ) { | |
| 476 | - /** | |
| 477 | - * error_log('Invalid IPv6 configuration on server, Please disable or get native IPv6 on your server.'); | |
| 478 | - * Hook to an action triggered just before cURL is executed to resolve the IP version to v4. | |
| 479 | - * | |
| 480 | - * @phpstan-ignore-next-line | |
| 481 | - */ | |
| 482 | - add_action( 'http_api_curl', 'Freemius_Api_WordPress::CurlResolveToIPv4', 10, 1 ); | |
| 483 | - | |
| 484 | - // Re-run request. | |
| 485 | - $result = self::ExecuteRequest( $request_url, $pWPRemoteArgs ); | |
| 486 | - } | |
| 487 | - } | |
| 488 | - } | |
| 489 | - } | |
| 490 | - | |
| 491 | - if ( is_wp_error( $result ) ) { | |
| 492 | - self::ThrowWPRemoteException( $result ); | |
| 493 | - } | |
| 494 | - } | |
| 495 | - | |
| 496 | - $response_body = $result['body']; | |
| 497 | - | |
| 498 | - if ( empty( $response_body ) ) { | |
| 499 | - return null; | |
| 500 | - } | |
| 501 | - | |
| 502 | - $decoded = json_decode( $response_body ); | |
| 503 | - | |
| 504 | - if ( is_null( $decoded ) ) { | |
| 505 | - if ( preg_match( '/Please turn JavaScript on/i', $response_body ) && | |
| 506 | - preg_match( '/text\/javascript/', $response_body ) | |
| 507 | - ) { | |
| 508 | - self::ThrowCloudFlareDDoSException( $response_body ); | |
| 509 | - } else if ( preg_match( '/Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect./', $response_body ) && | |
| 510 | - preg_match( '/squid/', $response_body ) | |
| 511 | - ) { | |
| 512 | - self::ThrowSquidAclException( $response_body ); | |
| 513 | - } else { | |
| 514 | - $decoded = (object) array( | |
| 515 | - 'error' => (object) array( | |
| 516 | - 'type' => 'Unknown', | |
| 517 | - 'message' => $response_body, | |
| 518 | - 'code' => 'unknown', | |
| 519 | - 'http' => 402 | |
| 520 | - ) | |
| 521 | - ); | |
| 522 | - } | |
| 523 | - } | |
| 524 | - | |
| 525 | - return $decoded; | |
| 526 | - } | |
| 527 | - | |
| 528 | - | |
| 529 | - /** | |
| 530 | - * Makes an HTTP request. This method can be overridden by subclasses if | |
| 531 | - * developers want to do fancier things or use something other than wp_remote_request() | |
| 532 | - * to make the request. | |
| 533 | - * | |
| 534 | - * @param string $pCanonizedPath The URL to make the request to | |
| 535 | - * @param string $pMethod HTTP method | |
| 536 | - * @param array $pParams The parameters to use for the POST body | |
| 537 | - * @param null|array $pWPRemoteArgs wp_remote_request options. | |
| 538 | - * | |
| 539 | - * @return object[]|object|null | |
| 540 | - * | |
| 541 | - * @throws Freemius_Exception | |
| 542 | - */ | |
| 543 | - public function MakeRequest( | |
| 544 | - $pCanonizedPath, | |
| 545 | - $pMethod = 'GET', | |
| 546 | - $pParams = array(), | |
| 547 | - $pWPRemoteArgs = null | |
| 548 | - ) { | |
| 549 | - $resource = explode( '?', $pCanonizedPath ); | |
| 550 | - | |
| 551 | - // Only sign request if not ping.json connectivity test. | |
| 552 | - $sign_request = ( '/v1/ping.json' !== strtolower( substr( $resource[0], - strlen( '/v1/ping.json' ) ) ) ); | |
| 553 | - | |
| 554 | - return self::MakeStaticRequest( | |
| 555 | - $pCanonizedPath, | |
| 556 | - $pMethod, | |
| 557 | - $pParams, | |
| 558 | - $pWPRemoteArgs, | |
| 559 | - $this->_isSandbox, | |
| 560 | - $sign_request ? array( &$this, 'SignRequest' ) : null | |
| 561 | - ); | |
| 562 | - } | |
| 563 | - | |
| 564 | - /** | |
| 565 | - * Sets CURLOPT_IPRESOLVE to CURL_IPRESOLVE_V4 for cURL-Handle provided as parameter | |
| 566 | - * | |
| 567 | - * @param resource $handle A cURL handle returned by curl_init() | |
| 568 | - * | |
| 569 | - * @return resource $handle A cURL handle returned by curl_init() with CURLOPT_IPRESOLVE set to | |
| 570 | - * CURL_IPRESOLVE_V4 | |
| 571 | - * | |
| 572 | - * @link https://gist.github.com/golderweb/3a2aaec2d56125cc004e | |
| 573 | - */ | |
| 574 | - static function CurlResolveToIPv4( $handle ) { | |
| 575 | - curl_setopt( $handle, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 ); | |
| 576 | - | |
| 577 | - return $handle; | |
| 578 | - } | |
| 579 | - | |
| 580 | - #---------------------------------------------------------------------------------- | |
| 581 | - #region Connectivity Test | |
| 582 | - #---------------------------------------------------------------------------------- | |
| 583 | - | |
| 584 | - /** | |
| 585 | - * This method exists only for backward compatibility to prevent a fatal error from happening when called from an outdated piece of code. | |
| 586 | - * | |
| 587 | - * @param mixed $pPong | |
| 588 | - * | |
| 589 | - * @return bool | |
| 590 | - */ | |
| 591 | - public static function Test( $pPong = null ) { | |
| 592 | - return ( | |
| 593 | - is_object( $pPong ) && | |
| 594 | - isset( $pPong->api ) && | |
| 595 | - 'pong' === $pPong->api | |
| 596 | - ); | |
| 597 | - } | |
| 598 | - | |
| 599 | - /** | |
| 600 | - * Ping API to test connectivity. | |
| 601 | - * | |
| 602 | - * @return object | |
| 603 | - */ | |
| 604 | - public static function Ping() { | |
| 605 | - try { | |
| 606 | - $result = self::MakeStaticRequest( '/v' . FS_API__VERSION . '/ping.json' ); | |
| 607 | - } catch ( Freemius_Exception $e ) { | |
| 608 | - // Map to error object. | |
| 609 | - $result = (object) $e->getResult(); | |
| 610 | - } catch ( Exception $e ) { | |
| 611 | - // Map to error object. | |
| 612 | - $result = (object) array( | |
| 613 | - 'error' => (object) array( | |
| 614 | - 'type' => 'Unknown', | |
| 615 | - 'message' => $e->getMessage() . ' (' . $e->getFile() . ': ' . $e->getLine() . ')', | |
| 616 | - 'code' => 'unknown', | |
| 617 | - 'http' => 402 | |
| 618 | - ) | |
| 619 | - ); | |
| 620 | - } | |
| 621 | - | |
| 622 | - return $result; | |
| 623 | - } | |
| 624 | - | |
| 625 | - #endregion | |
| 626 | - | |
| 627 | - #---------------------------------------------------------------------------------- | |
| 628 | - #region Connectivity Exceptions | |
| 629 | - #---------------------------------------------------------------------------------- | |
| 630 | - | |
| 631 | - /** | |
| 632 | - * @param \WP_Error $pError | |
| 633 | - * | |
| 634 | - * @return bool | |
| 635 | - */ | |
| 636 | - private static function IsCurlError( WP_Error $pError ) { | |
| 637 | - $message = $pError->get_error_message( 'http_request_failed' ); | |
| 638 | - | |
| 639 | - return ( 0 === strpos( $message, 'cURL' ) ); | |
| 640 | - } | |
| 641 | - | |
| 642 | - /** | |
| 643 | - * @param WP_Error $pError | |
| 644 | - * | |
| 645 | - * @throws Freemius_Exception | |
| 646 | - */ | |
| 647 | - private static function ThrowWPRemoteException( WP_Error $pError ) { | |
| 648 | - if ( self::IsCurlError( $pError ) ) { | |
| 649 | - $message = $pError->get_error_message( 'http_request_failed' ); | |
| 650 | - | |
| 651 | - #region Check if there are any missing cURL methods. | |
| 652 | - | |
| 653 | - $curl_required_methods = array( | |
| 654 | - 'curl_version', | |
| 655 | - 'curl_exec', | |
| 656 | - 'curl_init', | |
| 657 | - 'curl_close', | |
| 658 | - 'curl_setopt', | |
| 659 | - 'curl_setopt_array', | |
| 660 | - 'curl_error', | |
| 661 | - ); | |
| 662 | - | |
| 663 | - // Find all missing methods. | |
| 664 | - $missing_methods = array(); | |
| 665 | - foreach ( $curl_required_methods as $m ) { | |
| 666 | - if ( ! function_exists( $m ) ) { | |
| 667 | - $missing_methods[] = $m; | |
| 668 | - } | |
| 669 | - } | |
| 670 | - | |
| 671 | - if ( ! empty( $missing_methods ) ) { | |
| 672 | - throw new Freemius_Exception( array( | |
| 673 | - 'error' => (object) array( | |
| 674 | - 'type' => 'cUrlMissing', | |
| 675 | - 'message' => $message, | |
| 676 | - 'code' => 'curl_missing', | |
| 677 | - 'http' => 402 | |
| 678 | - ), | |
| 679 | - 'missing_methods' => $missing_methods, | |
| 680 | - ) ); | |
| 681 | - } | |
| 682 | - | |
| 683 | - #endregion | |
| 684 | - | |
| 685 | - // cURL error - "cURL error {{errno}}: {{error}}". | |
| 686 | - $parts = explode( ':', substr( $message, strlen( 'cURL error ' ) ), 2 ); | |
| 687 | - | |
| 688 | - $code = ( 0 < count( $parts ) ) ? $parts[0] : 'http_request_failed'; | |
| 689 | - $message = ( 1 < count( $parts ) ) ? $parts[1] : $message; | |
| 690 | - | |
| 691 | - $e = new Freemius_Exception( array( | |
| 692 | - 'error' => (object) array( | |
| 693 | - 'code' => $code, | |
| 694 | - 'message' => $message, | |
| 695 | - 'type' => 'CurlException', | |
| 696 | - ), | |
| 697 | - ) ); | |
| 698 | - } else { | |
| 699 | - $e = new Freemius_Exception( array( | |
| 700 | - 'error' => (object) array( | |
| 701 | - 'code' => $pError->get_error_code(), | |
| 702 | - 'message' => $pError->get_error_message(), | |
| 703 | - 'type' => 'WPRemoteException', | |
| 704 | - ), | |
| 705 | - ) ); | |
| 706 | - } | |
| 707 | - | |
| 708 | - throw $e; | |
| 709 | - } | |
| 710 | - | |
| 711 | - /** | |
| 712 | - * @param string $pResult | |
| 713 | - * | |
| 714 | - * @throws Freemius_Exception | |
| 715 | - */ | |
| 716 | - private static function ThrowCloudFlareDDoSException( $pResult = '' ) { | |
| 717 | - throw new Freemius_Exception( array( | |
| 718 | - 'error' => (object) array( | |
| 719 | - 'type' => 'CloudFlareDDoSProtection', | |
| 720 | - 'message' => $pResult, | |
| 721 | - 'code' => 'cloudflare_ddos_protection', | |
| 722 | - 'http' => 402 | |
| 723 | - ) | |
| 724 | - ) ); | |
| 725 | - } | |
| 726 | - | |
| 727 | - /** | |
| 728 | - * @param string $pResult | |
| 729 | - * | |
| 730 | - * @throws Freemius_Exception | |
| 731 | - */ | |
| 732 | - private static function ThrowSquidAclException( $pResult = '' ) { | |
| 733 | - throw new Freemius_Exception( array( | |
| 734 | - 'error' => (object) array( | |
| 735 | - 'type' => 'SquidCacheBlock', | |
| 736 | - 'message' => $pResult, | |
| 737 | - 'code' => 'squid_cache_block', | |
| 738 | - 'http' => 402 | |
| 739 | - ) | |
| 740 | - ) ); | |
| 741 | - } | |
| 742 | - | |
| 743 | - #endregion | |
| 744 | - } | |
| 745 | - } | |
| 1 | +<?php | |
| 2 | + /** | |
| 3 | + * Copyright 2016 Freemius, Inc. | |
| 4 | + * | |
| 5 | + * Licensed under the GPL v2 (the "License"); you may | |
| 6 | + * not use this file except in compliance with the License. You may obtain | |
| 7 | + * a copy of the License at | |
| 8 | + * | |
| 9 | + * http://choosealicense.com/licenses/gpl-v2/ | |
| 10 | + * | |
| 11 | + * Unless required by applicable law or agreed to in writing, software | |
| 12 | + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | |
| 13 | + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | |
| 14 | + * License for the specific language governing permissions and limitations | |
| 15 | + * under the License. | |
| 16 | + */ | |
| 17 | + if ( ! defined( 'ABSPATH' ) ) { | |
| 18 | + exit; | |
| 19 | + } | |
| 20 | + | |
| 21 | + require_once dirname( __FILE__ ) . '/FreemiusBase.php'; | |
| 22 | + | |
| 23 | + if ( ! defined( 'FS_SDK__USER_AGENT' ) ) { | |
| 24 | + define( 'FS_SDK__USER_AGENT', 'fs-php-' . Freemius_Api_Base::VERSION ); | |
| 25 | + } | |
| 26 | + | |
| 27 | + if ( ! defined( 'FS_SDK__SIMULATE_NO_CURL' ) ) { | |
| 28 | + define( 'FS_SDK__SIMULATE_NO_CURL', false ); | |
| 29 | + } | |
| 30 | + | |
| 31 | + if ( ! defined( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_CLOUDFLARE' ) ) { | |
| 32 | + define( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_CLOUDFLARE', false ); | |
| 33 | + } | |
| 34 | + | |
| 35 | + if ( ! defined( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_SQUID_ACL' ) ) { | |
| 36 | + define( 'FS_SDK__SIMULATE_NO_API_CONNECTIVITY_SQUID_ACL', false ); | |
| 37 | + } | |
| 38 | + | |
| 39 | + if ( ! defined( 'FS_SDK__HAS_CURL' ) ) { | |
| 40 | + if ( FS_SDK__SIMULATE_NO_CURL ) { | |
| 41 | + define( 'FS_SDK__HAS_CURL', false ); | |
| 42 | + } else { | |
| 43 | + $curl_required_methods = array( | |
| 44 | + 'curl_version', | |
| 45 | + 'curl_exec', | |
| 46 | + 'curl_init', | |
| 47 | + 'curl_close', | |
| 48 | + 'curl_setopt', | |
| 49 | + 'curl_setopt_array', | |
| 50 | + 'curl_error', | |
| 51 | + ); | |
| 52 | + | |
| 53 | + $has_curl = true; | |
| 54 | + foreach ( $curl_required_methods as $m ) { | |
| 55 | + if ( ! function_exists( $m ) ) { | |
| 56 | + $has_curl = false; | |
| 57 | + break; | |
| 58 | + } | |
| 59 | + } | |
| 60 | + | |
| 61 | + define( 'FS_SDK__HAS_CURL', $has_curl ); | |
| 62 | + } | |
| 63 | + } | |
| 64 | + | |
| 65 | + if ( ! defined( 'FS_SDK__SSLVERIFY' ) ) { | |
| 66 | + define( 'FS_SDK__SSLVERIFY', false ); | |
| 67 | + } | |
| 68 | + | |
| 69 | + $curl_version = FS_SDK__HAS_CURL ? | |
| 70 | + curl_version() : | |
| 71 | + array( 'version' => '7.37' ); | |
| 72 | + | |
| 73 | + if ( ! defined( 'FS_API__PROTOCOL' ) ) { | |
| 74 | + define( 'FS_API__PROTOCOL', version_compare( $curl_version['version'], '7.37', '>=' ) ? 'https' : 'http' ); | |
| 75 | + } | |
| 76 | + | |
| 77 | + if ( ! defined( 'FS_API__LOGGER_ON' ) ) { | |
| 78 | + define( 'FS_API__LOGGER_ON', false ); | |
| 79 | + } | |
| 80 | + | |
| 81 | + if ( ! defined( 'FS_API__ADDRESS' ) ) { | |
| 82 | + define( 'FS_API__ADDRESS', '://api.freemius.com' ); | |
| 83 | + } | |
| 84 | + if ( ! defined( 'FS_API__SANDBOX_ADDRESS' ) ) { | |
| 85 | + define( 'FS_API__SANDBOX_ADDRESS', '://sandbox-api.freemius.com' ); | |
| 86 | + } | |
| 87 | + | |
| 88 | + if ( ! class_exists( 'Freemius_Api_WordPress' ) ) { | |
| 89 | + class Freemius_Api_WordPress extends Freemius_Api_Base { | |
| 90 | + private static $_logger = array(); | |
| 91 | + | |
| 92 | + /** | |
| 93 | + * @param string $pScope 'app', 'developer', 'user' or 'install'. | |
| 94 | + * @param number $pID Element's id. | |
| 95 | + * @param string $pPublic Public key. | |
| 96 | + * @param string|bool $pSecret Element's secret key. | |
| 97 | + * @param bool $pSandbox Whether or not to run API in sandbox mode. | |
| 98 | + */ | |
| 99 | + public function __construct( $pScope, $pID, $pPublic, $pSecret = false, $pSandbox = false ) { | |
| 100 | + // If secret key not provided, use public key encryption. | |
| 101 | + if ( is_bool( $pSecret ) ) { | |
| 102 | + $pSecret = $pPublic; | |
| 103 | + } | |
| 104 | + | |
| 105 | + parent::Init( $pScope, $pID, $pPublic, $pSecret, $pSandbox ); | |
| 106 | + } | |
| 107 | + | |
| 108 | + public static function GetUrl( $pCanonizedPath = '', $pIsSandbox = false ) { | |
| 109 | + $address = ( $pIsSandbox ? FS_API__SANDBOX_ADDRESS : FS_API__ADDRESS ); | |
| 110 | + | |
| 111 | + if ( ':' === $address[0] ) { | |
| 112 | + $address = self::$_protocol . $address; | |
| 113 | + } | |
| 114 | + | |
| 115 | + return $address . $pCanonizedPath; | |
| 116 | + } | |
| 117 | + | |
| 118 | + #---------------------------------------------------------------------------------- | |
| 119 | + #region Servers Clock Diff | |
| 120 | + #---------------------------------------------------------------------------------- | |
| 121 | + | |
| 122 | + /** | |
| 123 | + * @var int Clock diff in seconds between current server to API server. | |
| 124 | + */ | |
| 125 | + private static $_clock_diff = 0; | |
| 126 | + | |
| 127 | + /** | |
| 128 | + * Set clock diff for all API calls. | |
| 129 | + * | |
| 130 | + * @since 1.0.3 | |
| 131 | + * | |
| 132 | + * @param $pSeconds | |
| 133 | + */ | |
| 134 | + public static function SetClockDiff( $pSeconds ) { | |
| 135 | + self::$_clock_diff = $pSeconds; | |
| 136 | + } | |
| 137 | + | |
| 138 | + /** | |
| 139 | + * Find clock diff between current server to API server. | |
| 140 | + * | |
| 141 | + * @since 1.0.2 | |
| 142 | + * @return int Clock diff in seconds. | |
| 143 | + */ | |
| 144 | + public static function FindClockDiff() { | |
| 145 | + $time = time(); | |
| 146 | + $pong = self::Ping(); | |
| 147 | + | |
| 148 | + return ( $time - strtotime( $pong->timestamp ) ); | |
| 149 | + } | |
| 150 | + | |
| 151 | + #endregion | |
| 152 | + | |
| 153 | + /** | |
| 154 | + * @var string http or https | |
| 155 | + */ | |
| 156 | + private static $_protocol = FS_API__PROTOCOL; | |
| 157 | + | |
| 158 | + /** | |
| 159 | + * Set API connection protocol. | |
| 160 | + * | |
| 161 | + * @since 1.0.4 | |
| 162 | + */ | |
| 163 | + public static function SetHttp() { | |
| 164 | + self::$_protocol = 'http'; | |
| 165 | + } | |
| 166 | + | |
| 167 | + /** | |
| 168 | + * Sets API connection protocol to HTTPS. | |
| 169 | + * | |
| 170 | + * @since 2.5.4 | |
| 171 | + */ | |
| 172 | + public static function SetHttps() { | |
| 173 | + self::$_protocol = 'https'; | |
| 174 | + } | |
| 175 | + | |
| 176 | + /** | |
| 177 | + * @since 1.0.4 | |
| 178 | + * | |
| 179 | + * @return bool | |
| 180 | + */ | |
| 181 | + public static function IsHttps() { | |
| 182 | + return ( 'https' === self::$_protocol ); | |
| 183 | + } | |
| 184 | + | |
| 185 | + /** | |
| 186 | + * Sign request with the following HTTP headers: | |
| 187 | + * Content-MD5: MD5(HTTP Request body) | |
| 188 | + * Date: Current date (i.e Sat, 14 Feb 2016 20:24:46 +0000) | |
| 189 | + * Authorization: FS {scope_entity_id}:{scope_entity_public_key}:base64encode(sha256(string_to_sign, | |
| 190 | + * {scope_entity_secret_key})) | |
| 191 | + * | |
| 192 | + * @param string $pResourceUrl | |
| 193 | + * @param array $pWPRemoteArgs | |
| 194 | + * | |
| 195 | + * @return array | |
| 196 | + */ | |
| 197 | + function SignRequest( $pResourceUrl, $pWPRemoteArgs ) { | |
| 198 | + $auth = $this->GenerateAuthorizationParams( | |
| 199 | + $pResourceUrl, | |
| 200 | + $pWPRemoteArgs['method'], | |
| 201 | + ! empty( $pWPRemoteArgs['body'] ) ? $pWPRemoteArgs['body'] : '' | |
| 202 | + ); | |
| 203 | + | |
| 204 | + $pWPRemoteArgs['headers']['Date'] = $auth['date']; | |
| 205 | + $pWPRemoteArgs['headers']['Authorization'] = $auth['authorization']; | |
| 206 | + | |
| 207 | + if ( ! empty( $auth['content_md5'] ) ) { | |
| 208 | + $pWPRemoteArgs['headers']['Content-MD5'] = $auth['content_md5']; | |
| 209 | + } | |
| 210 | + | |
| 211 | + return $pWPRemoteArgs; | |
| 212 | + } | |
| 213 | + | |
| 214 | + /** | |
| 215 | + * Generate Authorization request headers: | |
| 216 | + * | |
| 217 | + * Content-MD5: MD5(HTTP Request body) | |
| 218 | + * Date: Current date (i.e Sat, 14 Feb 2016 20:24:46 +0000) | |
| 219 | + * Authorization: FS {scope_entity_id}:{scope_entity_public_key}:base64encode(sha256(string_to_sign, | |
| 220 | + * {scope_entity_secret_key})) | |
| 221 | + * | |
| 222 | + * @author Vova Feldman | |
| 223 | + * | |
| 224 | + * @param string $pResourceUrl | |
| 225 | + * @param string $pMethod | |
| 226 | + * @param string $pPostParams | |
| 227 | + * | |
| 228 | + * @return array | |
| 229 | + * @throws Freemius_Exception | |
| 230 | + */ | |
| 231 | + function GenerateAuthorizationParams( | |
| 232 | + $pResourceUrl, | |
| 233 | + $pMethod = 'GET', | |
| 234 | + $pPostParams = '' | |
| 235 | + ) { | |
| 236 | + $pMethod = strtoupper( $pMethod ); | |
| 237 | + | |
| 238 | + $eol = "\n"; | |
| 239 | + $content_md5 = ''; | |
| 240 | + $content_type = ''; | |
| 241 | + $now = ( time() - self::$_clock_diff ); | |
| 242 | + $date = date( 'r', $now ); | |
| 243 | + | |
| 244 | + if ( in_array( $pMethod, array( 'POST', 'PUT' ) ) ) { | |
| 245 | + $content_type = 'application/json'; | |
| 246 | + | |
| 247 | + if ( ! empty( $pPostParams ) ) { | |
| 248 | + $content_md5 = md5( $pPostParams ); | |
| 249 | + } | |
| 250 | + } | |
| 251 | + | |
| 252 | + $string_to_sign = implode( $eol, array( | |
| 253 | + $pMethod, | |
| 254 | + $content_md5, | |
| 255 | + $content_type, | |
| 256 | + $date, | |
| 257 | + $pResourceUrl | |
| 258 | + ) ); | |
| 259 | + | |
| 260 | + // If secret and public keys are identical, it means that | |
| 261 | + // the signature uses public key hash encoding. | |
| 262 | + $auth_type = ( $this->_secret !== $this->_public ) ? 'FS' : 'FSP'; | |
| 263 | + | |
| 264 | + $auth = array( | |
| 265 | + 'date' => $date, | |
| 266 | + 'authorization' => $auth_type . ' ' . $this->_id . ':' . | |
| 267 | + $this->_public . ':' . | |
| 268 | + self::Base64UrlEncode( hash_hmac( | |
| 269 | + 'sha256', $string_to_sign, $this->_secret | |
| 270 | + ) ) | |
| 271 | + ); | |
| 272 | + | |
| 273 | + if ( ! empty( $content_md5 ) ) { | |
| 274 | + $auth['content_md5'] = $content_md5; | |
| 275 | + } | |
| 276 | + | |
| 277 | + return $auth; | |
| 278 | + } | |
| 279 | + | |
| 280 | + /** | |
| 281 | + * Get API request URL signed via query string. | |
| 282 | + * | |
| 283 | + * @since 1.2.3 Stopped using http_build_query(). Instead, use urlencode(). In some environments the encoding of http_build_query() can generate a URL that once used with a redirect, the `&` querystring separator is escaped to `&` which breaks the URL (Added by @svovaf). | |
| 284 | + * | |
| 285 | + * @param string $pPath | |
| 286 | + * | |
| 287 | + * @throws Freemius_Exception | |
| 288 | + * | |
| 289 | + * @return string | |
| 290 | + */ | |
| 291 | + function GetSignedUrl( $pPath ) { | |
| 292 | + $resource = explode( '?', $this->CanonizePath( $pPath ) ); | |
| 293 | + $pResourceUrl = $resource[0]; | |
| 294 | + | |
| 295 | + $auth = $this->GenerateAuthorizationParams( $pResourceUrl ); | |
| 296 | + | |
| 297 | + return Freemius_Api_WordPress::GetUrl( | |
| 298 | + $pResourceUrl . '?' . | |
| 299 | + ( 1 < count( $resource ) && ! empty( $resource[1] ) ? $resource[1] . '&' : '' ) . | |
| 300 | + 'authorization=' . urlencode( $auth['authorization'] ) . | |
| 301 | + '&auth_date=' . urlencode( $auth['date'] ) | |
| 302 | + , $this->_isSandbox ); | |
| 303 | + } | |
| 304 | + | |
| 305 | + /** | |
| 306 | + * @author Vova Feldman | |
| 307 | + * | |
| 308 | + * @param string $pUrl | |
| 309 | + * @param array $pWPRemoteArgs | |
| 310 | + * | |
| 311 | + * @return mixed | |
| 312 | + */ | |
| 313 | + private static function ExecuteRequest( $pUrl, &$pWPRemoteArgs ) { | |
| 314 | + $bt = debug_backtrace(); | |
| 315 | + | |
| 316 | + $start = microtime( true ); | |
| 317 | + | |
| 318 | + $response = self::RemoteRequest( $pUrl, $pWPRemoteArgs ); | |
| 319 | + | |
| 320 | + if ( FS_API__LOGGER_ON ) { | |
| 321 | + $end = microtime( true ); | |
| 322 | + | |
| 323 | + $has_body = ( isset( $pWPRemoteArgs['body'] ) && ! empty( $pWPRemoteArgs['body'] ) ); | |
| 324 | + $is_http_error = is_wp_error( $response ); | |
| 325 | + | |
| 326 | + self::$_logger[] = array( | |
| 327 | + 'id' => count( self::$_logger ), | |
| 328 | + 'start' => $start, | |
| 329 | + 'end' => $end, | |
| 330 | + 'total' => ( $end - $start ), | |
| 331 | + 'method' => $pWPRemoteArgs['method'], | |
| 332 | + 'path' => $pUrl, | |
| 333 | + 'body' => $has_body ? $pWPRemoteArgs['body'] : null, | |
| 334 | + 'result' => ! $is_http_error ? | |
| 335 | + $response['body'] : | |
| 336 | + json_encode( $response->get_error_messages() ), | |
| 337 | + 'code' => ! $is_http_error ? $response['response']['code'] : null, | |
| 338 | + 'backtrace' => $bt, | |
| 339 | + ); | |
| 340 | + } | |
| 341 | + | |
| 342 | + return $response; | |
| 343 | + } | |
| 344 | + | |
| 345 | + /** | |
| 346 | + * @author Leo Fajardo (@leorw) | |
| 347 | + * | |
| 348 | + * @param string $pUrl | |
| 349 | + * @param array $pWPRemoteArgs | |
| 350 | + * | |
| 351 | + * @return array|WP_Error The response array or a WP_Error on failure. | |
| 352 | + */ | |
| 353 | + static function RemoteRequest( $pUrl, $pWPRemoteArgs ) { | |
| 354 | + $response = wp_remote_request( $pUrl, $pWPRemoteArgs ); | |
| 355 | + | |
| 356 | + if ( | |
| 357 | + is_array( $response ) && | |
| 358 | + ( | |
| 359 | + empty( $response['headers'] ) || | |
| 360 | + empty( $response['headers']['x-api-server'] ) | |
| 361 | + ) | |
| 362 | + ) { | |
| 363 | + // API is considered blocked if the response doesn't include the `x-api-server` header. When there's no error but this header doesn't exist, the response is usually not in the expected form (e.g., cannot be JSON-decoded). | |
| 364 | + $response = new WP_Error( 'api_blocked', htmlentities( $response['body'] ) ); | |
| 365 | + } | |
| 366 | + | |
| 367 | + return $response; | |
| 368 | + } | |
| 369 | + | |
| 370 | + /** | |
| 371 | + * @return array | |
| 372 | + */ | |
| 373 | + static function GetLogger() { | |
| 374 | + return self::$_logger; | |
| 375 | + } | |
| 376 | + | |
| 377 | + /** | |
| 378 | + * @param string $pCanonizedPath | |
| 379 | + * @param string $pMethod | |
| 380 | + * @param array $pParams | |
| 381 | + * @param null|array $pWPRemoteArgs | |
| 382 | + * @param bool $pIsSandbox | |
| 383 | + * @param null|callable $pBeforeExecutionFunction | |
| 384 | + * | |
| 385 | + * @return object[]|object|null | |
| 386 | + * | |
| 387 | + * @throws \Freemius_Exception | |
| 388 | + */ | |
| 389 | + private static function MakeStaticRequest( | |
| 390 | + $pCanonizedPath, | |
| 391 | + $pMethod = 'GET', | |
| 392 | + $pParams = array(), | |
| 393 | + $pWPRemoteArgs = null, | |
| 394 | + $pIsSandbox = false, | |
| 395 | + $pBeforeExecutionFunction = null | |
| 396 | + ) { | |
| 397 | + // Connectivity errors simulation. | |
| 398 | + if ( FS_SDK__SIMULATE_NO_API_CONNECTIVITY_CLOUDFLARE ) { | |
| 399 | + self::ThrowCloudFlareDDoSException(); | |
| 400 | + } else if ( FS_SDK__SIMULATE_NO_API_CONNECTIVITY_SQUID_ACL ) { | |
| 401 | + self::ThrowSquidAclException(); | |
| 402 | + } | |
| 403 | + | |
| 404 | + if ( empty( $pWPRemoteArgs ) ) { | |
| 405 | + $user_agent = 'Freemius/WordPress-SDK/' . Freemius_Api_Base::VERSION . '; ' . | |
| 406 | + home_url(); | |
| 407 | + | |
| 408 | + $pWPRemoteArgs = array( | |
| 409 | + 'method' => strtoupper( $pMethod ), | |
| 410 | + 'connect_timeout' => 10, | |
| 411 | + 'timeout' => 60, | |
| 412 | + 'follow_redirects' => true, | |
| 413 | + 'redirection' => 5, | |
| 414 | + 'user-agent' => $user_agent, | |
| 415 | + 'blocking' => true, | |
| 416 | + ); | |
| 417 | + } | |
| 418 | + | |
| 419 | + if ( ! isset( $pWPRemoteArgs['headers'] ) || | |
| 420 | + ! is_array( $pWPRemoteArgs['headers'] ) | |
| 421 | + ) { | |
| 422 | + $pWPRemoteArgs['headers'] = array(); | |
| 423 | + } | |
| 424 | + | |
| 425 | + if ( in_array( $pMethod, array( 'POST', 'PUT' ) ) ) { | |
| 426 | + $pWPRemoteArgs['headers']['Content-type'] = 'application/json'; | |
| 427 | + | |
| 428 | + if ( is_array( $pParams ) && 0 < count( $pParams ) ) { | |
| 429 | + $pWPRemoteArgs['body'] = json_encode( $pParams ); | |
| 430 | + } | |
| 431 | + } | |
| 432 | + | |
| 433 | + $request_url = self::GetUrl( $pCanonizedPath, $pIsSandbox ); | |
| 434 | + | |
| 435 | + $resource = explode( '?', $pCanonizedPath ); | |
| 436 | + | |
| 437 | + if ( FS_SDK__HAS_CURL ) { | |
| 438 | + // Disable the 'Expect: 100-continue' behaviour. This causes cURL to wait | |
| 439 | + // for 2 seconds if the server does not support this header. | |
| 440 | + $pWPRemoteArgs['headers']['Expect'] = ''; | |
| 441 | + } | |
| 442 | + | |
| 443 | + if ( 'https' === substr( strtolower( $request_url ), 0, 5 ) ) { | |
| 444 | + $pWPRemoteArgs['sslverify'] = FS_SDK__SSLVERIFY; | |
| 445 | + } | |
| 446 | + | |
| 447 | + if ( false !== $pBeforeExecutionFunction && | |
| 448 | + is_callable( $pBeforeExecutionFunction ) | |
| 449 | + ) { | |
| 450 | + $pWPRemoteArgs = call_user_func( $pBeforeExecutionFunction, $resource[0], $pWPRemoteArgs ); | |
| 451 | + } | |
| 452 | + | |
| 453 | + $result = self::ExecuteRequest( $request_url, $pWPRemoteArgs ); | |
| 454 | + | |
| 455 | + if ( is_wp_error( $result ) ) { | |
| 456 | + /** | |
| 457 | + * @var WP_Error $result | |
| 458 | + */ | |
| 459 | + if ( self::IsCurlError( $result ) ) { | |
| 460 | + /** | |
| 461 | + * With dual stacked DNS responses, it's possible for a server to | |
| 462 | + * have IPv6 enabled but not have IPv6 connectivity. If this is | |
| 463 | + * the case, cURL will try IPv4 first and if that fails, then it will | |
| 464 | + * fall back to IPv6 and the error EHOSTUNREACH is returned by the | |
| 465 | + * operating system. | |
| 466 | + */ | |
| 467 | + $matches = array(); | |
| 468 | + $regex = '/Failed to connect to ([^:].*): Network is unreachable/'; | |
| 469 | + if ( preg_match( $regex, $result->get_error_message( 'http_request_failed' ), $matches ) ) { | |
| 470 | + /** | |
| 471 | + * Validate IP before calling `inet_pton()` to avoid PHP un-catchable warning. | |
| 472 | + * @author Vova Feldman (@svovaf) | |
| 473 | + */ | |
| 474 | + if ( filter_var( $matches[1], FILTER_VALIDATE_IP ) ) { | |
| 475 | + if ( strlen( inet_pton( $matches[1] ) ) === 16 ) { | |
| 476 | +// error_log('Invalid IPv6 configuration on server, Please disable or get native IPv6 on your server.'); | |
| 477 | + // Hook to an action triggered just before cURL is executed to resolve the IP version to v4. | |
| 478 | + add_action( 'http_api_curl', 'Freemius_Api_WordPress::CurlResolveToIPv4', 10, 1 ); | |
| 479 | + | |
| 480 | + // Re-run request. | |
| 481 | + $result = self::ExecuteRequest( $request_url, $pWPRemoteArgs ); | |
| 482 | + } | |
| 483 | + } | |
| 484 | + } | |
| 485 | + } | |
| 486 | + | |
| 487 | + if ( is_wp_error( $result ) ) { | |
| 488 | + self::ThrowWPRemoteException( $result ); | |
| 489 | + } | |
| 490 | + } | |
| 491 | + | |
| 492 | + $response_body = $result['body']; | |
| 493 | + | |
| 494 | + if ( empty( $response_body ) ) { | |
| 495 | + return null; | |
| 496 | + } | |
| 497 | + | |
| 498 | + $decoded = json_decode( $response_body ); | |
| 499 | + | |
| 500 | + if ( is_null( $decoded ) ) { | |
| 501 | + if ( preg_match( '/Please turn JavaScript on/i', $response_body ) && | |
| 502 | + preg_match( '/text\/javascript/', $response_body ) | |
| 503 | + ) { | |
| 504 | + self::ThrowCloudFlareDDoSException( $response_body ); | |
| 505 | + } else if ( preg_match( '/Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect./', $response_body ) && | |
| 506 | + preg_match( '/squid/', $response_body ) | |
| 507 | + ) { | |
| 508 | + self::ThrowSquidAclException( $response_body ); | |
| 509 | + } else { | |
| 510 | + $decoded = (object) array( | |
| 511 | + 'error' => (object) array( | |
| 512 | + 'type' => 'Unknown', | |
| 513 | + 'message' => $response_body, | |
| 514 | + 'code' => 'unknown', | |
| 515 | + 'http' => 402 | |
| 516 | + ) | |
| 517 | + ); | |
| 518 | + } | |
| 519 | + } | |
| 520 | + | |
| 521 | + return $decoded; | |
| 522 | + } | |
| 523 | + | |
| 524 | + | |
| 525 | + /** | |
| 526 | + * Makes an HTTP request. This method can be overridden by subclasses if | |
| 527 | + * developers want to do fancier things or use something other than wp_remote_request() | |
| 528 | + * to make the request. | |
| 529 | + * | |
| 530 | + * @param string $pCanonizedPath The URL to make the request to | |
| 531 | + * @param string $pMethod HTTP method | |
| 532 | + * @param array $pParams The parameters to use for the POST body | |
| 533 | + * @param null|array $pWPRemoteArgs wp_remote_request options. | |
| 534 | + * | |
| 535 | + * @return object[]|object|null | |
| 536 | + * | |
| 537 | + * @throws Freemius_Exception | |
| 538 | + */ | |
| 539 | + public function MakeRequest( | |
| 540 | + $pCanonizedPath, | |
| 541 | + $pMethod = 'GET', | |
| 542 | + $pParams = array(), | |
| 543 | + $pWPRemoteArgs = null | |
| 544 | + ) { | |
| 545 | + $resource = explode( '?', $pCanonizedPath ); | |
| 546 | + | |
| 547 | + // Only sign request if not ping.json connectivity test. | |
| 548 | + $sign_request = ( '/v1/ping.json' !== strtolower( substr( $resource[0], - strlen( '/v1/ping.json' ) ) ) ); | |
| 549 | + | |
| 550 | + return self::MakeStaticRequest( | |
| 551 | + $pCanonizedPath, | |
| 552 | + $pMethod, | |
| 553 | + $pParams, | |
| 554 | + $pWPRemoteArgs, | |
| 555 | + $this->_isSandbox, | |
| 556 | + $sign_request ? array( &$this, 'SignRequest' ) : null | |
| 557 | + ); | |
| 558 | + } | |
| 559 | + | |
| 560 | + /** | |
| 561 | + * Sets CURLOPT_IPRESOLVE to CURL_IPRESOLVE_V4 for cURL-Handle provided as parameter | |
| 562 | + * | |
| 563 | + * @param resource $handle A cURL handle returned by curl_init() | |
| 564 | + * | |
| 565 | + * @return resource $handle A cURL handle returned by curl_init() with CURLOPT_IPRESOLVE set to | |
| 566 | + * CURL_IPRESOLVE_V4 | |
| 567 | + * | |
| 568 | + * @link https://gist.github.com/golderweb/3a2aaec2d56125cc004e | |
| 569 | + */ | |
| 570 | + static function CurlResolveToIPv4( $handle ) { | |
| 571 | + curl_setopt( $handle, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 ); | |
| 572 | + | |
| 573 | + return $handle; | |
| 574 | + } | |
| 575 | + | |
| 576 | + #---------------------------------------------------------------------------------- | |
| 577 | + #region Connectivity Test | |
| 578 | + #---------------------------------------------------------------------------------- | |
| 579 | + | |
| 580 | + /** | |
| 581 | + * This method exists only for backward compatibility to prevent a fatal error from happening when called from an outdated piece of code. | |
| 582 | + * | |
| 583 | + * @param mixed $pPong | |
| 584 | + * | |
| 585 | + * @return bool | |
| 586 | + */ | |
| 587 | + public static function Test( $pPong = null ) { | |
| 588 | + return ( | |
| 589 | + is_object( $pPong ) && | |
| 590 | + isset( $pPong->api ) && | |
| 591 | + 'pong' === $pPong->api | |
| 592 | + ); | |
| 593 | + } | |
| 594 | + | |
| 595 | + /** | |
| 596 | + * Ping API to test connectivity. | |
| 597 | + * | |
| 598 | + * @return object | |
| 599 | + */ | |
| 600 | + public static function Ping() { | |
| 601 | + try { | |
| 602 | + $result = self::MakeStaticRequest( '/v' . FS_API__VERSION . '/ping.json' ); | |
| 603 | + } catch ( Freemius_Exception $e ) { | |
| 604 | + // Map to error object. | |
| 605 | + $result = (object) $e->getResult(); | |
| 606 | + } catch ( Exception $e ) { | |
| 607 | + // Map to error object. | |
| 608 | + $result = (object) array( | |
| 609 | + 'error' => (object) array( | |
| 610 | + 'type' => 'Unknown', | |
| 611 | + 'message' => $e->getMessage() . ' (' . $e->getFile() . ': ' . $e->getLine() . ')', | |
| 612 | + 'code' => 'unknown', | |
| 613 | + 'http' => 402 | |
| 614 | + ) | |
| 615 | + ); | |
| 616 | + } | |
| 617 | + | |
| 618 | + return $result; | |
| 619 | + } | |
| 620 | + | |
| 621 | + #endregion | |
| 622 | + | |
| 623 | + #---------------------------------------------------------------------------------- | |
| 624 | + #region Connectivity Exceptions | |
| 625 | + #---------------------------------------------------------------------------------- | |
| 626 | + | |
| 627 | + /** | |
| 628 | + * @param \WP_Error $pError | |
| 629 | + * | |
| 630 | + * @return bool | |
| 631 | + */ | |
| 632 | + private static function IsCurlError( WP_Error $pError ) { | |
| 633 | + $message = $pError->get_error_message( 'http_request_failed' ); | |
| 634 | + | |
| 635 | + return ( 0 === strpos( $message, 'cURL' ) ); | |
| 636 | + } | |
| 637 | + | |
| 638 | + /** | |
| 639 | + * @param WP_Error $pError | |
| 640 | + * | |
| 641 | + * @throws Freemius_Exception | |
| 642 | + */ | |
| 643 | + private static function ThrowWPRemoteException( WP_Error $pError ) { | |
| 644 | + if ( self::IsCurlError( $pError ) ) { | |
| 645 | + $message = $pError->get_error_message( 'http_request_failed' ); | |
| 646 | + | |
| 647 | + #region Check if there are any missing cURL methods. | |
| 648 | + | |
| 649 | + $curl_required_methods = array( | |
| 650 | + 'curl_version', | |
| 651 | + 'curl_exec', | |
| 652 | + 'curl_init', | |
| 653 | + 'curl_close', | |
| 654 | + 'curl_setopt', | |
| 655 | + 'curl_setopt_array', | |
| 656 | + 'curl_error', | |
| 657 | + ); | |
| 658 | + | |
| 659 | + // Find all missing methods. | |
| 660 | + $missing_methods = array(); | |
| 661 | + foreach ( $curl_required_methods as $m ) { | |
| 662 | + if ( ! function_exists( $m ) ) { | |
| 663 | + $missing_methods[] = $m; | |
| 664 | + } | |
| 665 | + } | |
| 666 | + | |
| 667 | + if ( ! empty( $missing_methods ) ) { | |
| 668 | + throw new Freemius_Exception( array( | |
| 669 | + 'error' => (object) array( | |
| 670 | + 'type' => 'cUrlMissing', | |
| 671 | + 'message' => $message, | |
| 672 | + 'code' => 'curl_missing', | |
| 673 | + 'http' => 402 | |
| 674 | + ), | |
| 675 | + 'missing_methods' => $missing_methods, | |
| 676 | + ) ); | |
| 677 | + } | |
| 678 | + | |
| 679 | + #endregion | |
| 680 | + | |
| 681 | + // cURL error - "cURL error {{errno}}: {{error}}". | |
| 682 | + $parts = explode( ':', substr( $message, strlen( 'cURL error ' ) ), 2 ); | |
| 683 | + | |
| 684 | + $code = ( 0 < count( $parts ) ) ? $parts[0] : 'http_request_failed'; | |
| 685 | + $message = ( 1 < count( $parts ) ) ? $parts[1] : $message; | |
| 686 | + | |
| 687 | + $e = new Freemius_Exception( array( | |
| 688 | + 'error' => (object) array( | |
| 689 | + 'code' => $code, | |
| 690 | + 'message' => $message, | |
| 691 | + 'type' => 'CurlException', | |
| 692 | + ), | |
| 693 | + ) ); | |
| 694 | + } else { | |
| 695 | + $e = new Freemius_Exception( array( | |
| 696 | + 'error' => (object) array( | |
| 697 | + 'code' => $pError->get_error_code(), | |
| 698 | + 'message' => $pError->get_error_message(), | |
| 699 | + 'type' => 'WPRemoteException', | |
| 700 | + ), | |
| 701 | + ) ); | |
| 702 | + } | |
| 703 | + | |
| 704 | + throw $e; | |
| 705 | + } | |
| 706 | + | |
| 707 | + /** | |
| 708 | + * @param string $pResult | |
| 709 | + * | |
| 710 | + * @throws Freemius_Exception | |
| 711 | + */ | |
| 712 | + private static function ThrowCloudFlareDDoSException( $pResult = '' ) { | |
| 713 | + throw new Freemius_Exception( array( | |
| 714 | + 'error' => (object) array( | |
| 715 | + 'type' => 'CloudFlareDDoSProtection', | |
| 716 | + 'message' => $pResult, | |
| 717 | + 'code' => 'cloudflare_ddos_protection', | |
| 718 | + 'http' => 402 | |
| 719 | + ) | |
| 720 | + ) ); | |
| 721 | + } | |
| 722 | + | |
| 723 | + /** | |
| 724 | + * @param string $pResult | |
| 725 | + * | |
| 726 | + * @throws Freemius_Exception | |
| 727 | + */ | |
| 728 | + private static function ThrowSquidAclException( $pResult = '' ) { | |
| 729 | + throw new Freemius_Exception( array( | |
| 730 | + 'error' => (object) array( | |
| 731 | + 'type' => 'SquidCacheBlock', | |
| 732 | + 'message' => $pResult, | |
| 733 | + 'code' => 'squid_cache_block', | |
| 734 | + 'http' => 402 | |
| 735 | + ) | |
| 736 | + ) ); | |
| 737 | + } | |
| 738 | + | |
| 739 | + #endregion | |
| 740 | + } | |
| 741 | + } | |
