| 1 |
<?php |
| 2 |
|
| 3 |
// Do not allow the file to be called directly. |
| 4 |
if ( ! defined( 'ABSPATH' ) ) { |
| 5 |
exit; |
| 6 |
} |
| 7 |
|
| 8 |
/** |
| 9 |
* This class is used as a base for communicating with the Patchstack API. |
| 10 |
*/ |
| 11 |
class P_Api extends P_Core { |
| 12 |
|
| 13 |
/** |
| 14 |
* @var integer The current blog id. |
| 15 |
*/ |
| 16 |
public $blog_id; |
| 17 |
|
| 18 |
/** |
| 19 |
* @var string Error message from the API. |
| 20 |
*/ |
| 21 |
public $message; |
| 22 |
|
| 23 |
/** |
| 24 |
* Add the actions required for the API. |
| 25 |
* |
| 26 |
* @param Patchstack $core |
| 27 |
* @return void |
| 28 |
*/ |
| 29 |
public function __construct( $core ) { |
| 30 |
parent::__construct( $core ); |
| 31 |
$this->blog_id = get_current_blog_id(); |
| 32 |
add_action( 'patchstack_update_license_status', [ $this, 'update_license_status' ] ); |
| 33 |
add_action( 'patchstack_send_ping', [ $this, 'ping' ] ); |
| 34 |
} |
| 35 |
|
| 36 |
/** |
| 37 |
* Get the API token. |
| 38 |
* |
| 39 |
* @param string $clientid The API client ID. |
| 40 |
* @param string $secretkey The API secret key. |
| 41 |
* @param boolean $fresh Whether or not to get a fresh token. |
| 42 |
* @return null|string |
| 43 |
*/ |
| 44 |
public function get_access_token( $clientid = '', $secretkey = '', $fresh = false ) { |
| 45 |
// Get current access token, if it exists. |
| 46 |
$token_data = $this->get_blog_option( $this->blog_id, 'patchstack_api_token', false ); |
| 47 |
|
| 48 |
// If we do not need a fresh token, get the current one if it's not expired. |
| 49 |
if ( ! $fresh && isset( $token_data['token'] ) && ! $this->has_expired( $token_data['expiresin'] ) ) { |
| 50 |
return $token_data['token']; |
| 51 |
} |
| 52 |
|
| 53 |
// Call API and get the new access token. |
| 54 |
$response = $this->fetch_access_token( $clientid, $secretkey ); |
| 55 |
if ( $response && $response->result == 'success' ) { |
| 56 |
$this->update_blog_option( |
| 57 |
$this->blog_id, |
| 58 |
'patchstack_api_token', |
| 59 |
[ |
| 60 |
'token' => $response->message, |
| 61 |
'expiresin' => $response->expiresin, |
| 62 |
] |
| 63 |
); |
| 64 |
return $response->message; |
| 65 |
} |
| 66 |
|
| 67 |
// If we reach this, it means we were not able to get the access token. |
| 68 |
$this->message = $response; |
| 69 |
$this->update_blog_option( $this->blog_id, 'patchstack_api_token', '' ); |
| 70 |
return null; |
| 71 |
} |
| 72 |
|
| 73 |
/** |
| 74 |
* Fetch the API Token from API Server. |
| 75 |
* |
| 76 |
* @param string $clientid The API client ID. |
| 77 |
* @param string $secretkey The API secret key. |
| 78 |
* @return string|array|object |
| 79 |
*/ |
| 80 |
public function fetch_access_token( $clientid = '', $secretkey = '' ) { |
| 81 |
// Skeleton for the response data. |
| 82 |
$response_data = (object) [ |
| 83 |
'result' => '', |
| 84 |
'message' => '', |
| 85 |
'expiresin' => '', |
| 86 |
]; |
| 87 |
|
| 88 |
// Determine if the license id/key is set. |
| 89 |
$client_id = $this->get_blog_option( $this->blog_id, 'patchstack_clientid', $clientid ); |
| 90 |
|
| 91 |
// Decrypt the secret key, if it is encrypted. |
| 92 |
$client_secret = $this->get_blog_option( $this->blog_id, 'patchstack_secretkey', $secretkey ); |
| 93 |
$client_nonce = $this->get_blog_option( $this->blog_id, 'patchstack_secretkey_nonce', false ); |
| 94 |
if ( $client_nonce ) { |
| 95 |
$client_secret = $this->decrypt( $client_secret, $client_nonce ); |
| 96 |
} |
| 97 |
|
| 98 |
// Make sure these values are set. |
| 99 |
if ( empty( $client_id ) || empty( $client_secret ) ) { |
| 100 |
$response_data->result = 'failed'; |
| 101 |
$response_data->message = esc_attr__( 'API keys missing! Unable to obtain an access token.', 'patchstack' ); |
| 102 |
return $response_data; |
| 103 |
} |
| 104 |
|
| 105 |
// Send a request to our server to obtain the access token. |
| 106 |
$response = wp_remote_post( |
| 107 |
$this->plugin->auth_url . '/oauth/token', |
| 108 |
[ |
| 109 |
'method' => 'POST', |
| 110 |
'timeout' => 60, |
| 111 |
'redirection' => 5, |
| 112 |
'httpversion' => '1.0', |
| 113 |
'blocking' => true, |
| 114 |
'headers' => [], |
| 115 |
'body' => [ |
| 116 |
'client_id' => $client_id, |
| 117 |
'client_secret' => $client_secret, |
| 118 |
'grant_type' => 'client_credentials', |
| 119 |
], |
| 120 |
'cookies' => [], |
| 121 |
] |
| 122 |
); |
| 123 |
|
| 124 |
// Stop if we received an error from the API. |
| 125 |
if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) == 401 ) { |
| 126 |
$this->message = wp_remote_retrieve_body( $response ); |
| 127 |
|
| 128 |
if ( wp_remote_retrieve_response_code( $response ) == 401 ) { |
| 129 |
$this->update_blog_option( $this->blog_id, 'patchstack_clientid', '' ); |
| 130 |
$this->update_blog_option( $this->blog_id, 'patchstack_secretkey', '' ); |
| 131 |
$this->update_blog_option( $this->blog_id, 'patchstack_secretkey_nonce', '' ); |
| 132 |
$this->update_blog_option( $this->blog_id, 'patchstack_api_token', '' ); |
| 133 |
} |
| 134 |
|
| 135 |
$response_data->result = 'failed'; |
| 136 |
$response_data->message = esc_attr__( 'Unexpected error! Unable to obtain an access token. Error code: ', 'patchstack' ) . wp_remote_retrieve_response_code( $response ); |
| 137 |
$response_data->body = $this->message; |
| 138 |
return $response_data; |
| 139 |
} |
| 140 |
|
| 141 |
// Parse the result. |
| 142 |
$result = json_decode( wp_remote_retrieve_body( $response ) ); |
| 143 |
if ( isset( $result->access_token ) ) { |
| 144 |
$response_data->result = 'success'; |
| 145 |
$response_data->message = $result->access_token; |
| 146 |
$response_data->expiresin = $result->expires_in; |
| 147 |
|
| 148 |
// We need to know when the token expires. |
| 149 |
// Defer to 'expires' if it is provided instead. |
| 150 |
if ( isset( $result->expires_in ) ) { |
| 151 |
if ( ! is_numeric( $result->expires_in ) ) { |
| 152 |
$response_data->message = 'expires_in value must be an integer'; |
| 153 |
return $response_data; |
| 154 |
} |
| 155 |
$response_data->expiresin = $result->expires_in != 0 ? time() + $result->expires_in : 0; |
| 156 |
} |
| 157 |
|
| 158 |
return $response_data; |
| 159 |
} elseif ( isset( $result->error ) ) { |
| 160 |
$response_data->result = $result->error; |
| 161 |
$response_data->message = esc_attr__( 'Unexpected error! Unable to obtain an access token.', 'patchstack' ) . $result->message; |
| 162 |
return $response_data; |
| 163 |
} |
| 164 |
} |
| 165 |
|
| 166 |
/** |
| 167 |
* Send a request to the API with optionally POST data. |
| 168 |
* |
| 169 |
* @param string $url |
| 170 |
* @param string $request |
| 171 |
* @param array $data |
| 172 |
* @return void|array If successful array, otherwise void. |
| 173 |
*/ |
| 174 |
public function send_request( $url, $request, $data = [] ) { |
| 175 |
// Attempt to get the access token. |
| 176 |
$token = $this->get_access_token(); |
| 177 |
if ( empty( $token ) ) { |
| 178 |
return; |
| 179 |
} |
| 180 |
|
| 181 |
// Send the remote request using the WordPress built-in method. |
| 182 |
$response = wp_remote_request( |
| 183 |
$this->plugin->api_url . $url, |
| 184 |
[ |
| 185 |
'method' => $request, |
| 186 |
'timeout' => 60, |
| 187 |
'redirection' => 5, |
| 188 |
'httpversion' => '1.0', |
| 189 |
'blocking' => true, |
| 190 |
'headers' => [ |
| 191 |
'Authorization' => 'Bearer ' . $token, |
| 192 |
'LicenseID' => $this->get_blog_option( $this->blog_id, 'patchstack_clientid', 0 ), |
| 193 |
'Source-Host' => get_site_url(), |
| 194 |
], |
| 195 |
'body' => $data, |
| 196 |
'cookies' => [], |
| 197 |
] |
| 198 |
); |
| 199 |
|
| 200 |
// Check error or status code. |
| 201 |
if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) != 200 ) { |
| 202 |
|
| 203 |
// See if we received a site API connection termination. |
| 204 |
$body = json_decode( wp_remote_retrieve_body( $response ), true ); |
| 205 |
if ( isset( $body['cancel'] ) ) { |
| 206 |
$this->update_blog_option( $this->blog_id, 'patchstack_clientid', '' ); |
| 207 |
$this->update_blog_option( $this->blog_id, 'patchstack_secretkey', '' ); |
| 208 |
$this->update_blog_option( $this->blog_id, 'patchstack_secretkey_nonce', '' ); |
| 209 |
$this->update_blog_option( $this->blog_id, 'patchstack_api_token', '' ); |
| 210 |
} |
| 211 |
|
| 212 |
return wp_remote_retrieve_response_code( $response ); |
| 213 |
} |
| 214 |
|
| 215 |
return json_decode( wp_remote_retrieve_body( $response ), true ); |
| 216 |
} |
| 217 |
|
| 218 |
/** |
| 219 |
* Checks if the API token has expired. |
| 220 |
* |
| 221 |
* @param integer $expiresin API token expiry. |
| 222 |
* @return boolean If the token has expired. |
| 223 |
*/ |
| 224 |
public function has_expired( $expiresin ) { |
| 225 |
return ( $expiresin < ( time() + 30 ) ); |
| 226 |
} |
| 227 |
|
| 228 |
/** |
| 229 |
* Retrieve the status of a license. |
| 230 |
* |
| 231 |
* @return void|array |
| 232 |
*/ |
| 233 |
public function update_license_status() { |
| 234 |
// Get current license status. |
| 235 |
$response = $this->send_request( '/api/license/verify', 'GET' ); |
| 236 |
|
| 237 |
// Invalid license, or no longer active. |
| 238 |
if ( ! is_array( $response ) && $response == 422 ) { |
| 239 |
$this->update_blog_option( $this->blog_id, 'patchstack_clientid', '' ); |
| 240 |
$this->update_blog_option( $this->blog_id, 'patchstack_secretkey', '' ); |
| 241 |
$this->update_blog_option( $this->blog_id, 'patchstack_secretkey_nonce', '' ); |
| 242 |
$this->update_blog_option( $this->blog_id, 'patchstack_api_token', '' ); |
| 243 |
return; |
| 244 |
} |
| 245 |
|
| 246 |
// Update the representing options. |
| 247 |
if ( isset( $response['expires_at'] ) ) { |
| 248 |
$this->update_blog_option( $this->blog_id, 'patchstack_license_expiry', $response['expires_at'] ); |
| 249 |
} |
| 250 |
|
| 251 |
if ( isset( $response['free'] ) ) { |
| 252 |
$this->update_blog_option( $this->blog_id, 'patchstack_license_free', $response['free'] == false ? 0 : 1 ); |
| 253 |
|
| 254 |
if ( $response['free'] == true ) { |
| 255 |
$this->update_blog_option( $this->blog_id, 'patchstack_show_settings', 0 ); |
| 256 |
$this->update_blog_option( $this->blog_id, 'patchstack_firewall_rules_v3', '[]' ); |
| 257 |
} else { |
| 258 |
$this->send_header_request(); |
| 259 |
} |
| 260 |
} |
| 261 |
|
| 262 |
if ( isset( $response['active'] ) ) { |
| 263 |
$this->update_blog_option( $this->blog_id, 'patchstack_license_activated', $response['active'] == true ); |
| 264 |
} |
| 265 |
|
| 266 |
if ( isset( $response['class'] ) ) { |
| 267 |
$this->update_blog_option( $this->blog_id, 'patchstack_subscription_class', $response['class'] ); |
| 268 |
$this->update_blog_option( $this->blog_id, 'patchstack_last_license_check', time() ); |
| 269 |
} |
| 270 |
|
| 271 |
if ( isset( $response['managed'], $response['managed_string'] ) ) { |
| 272 |
$this->update_blog_option( $this->blog_id, 'patchstack_managed', $response['managed'] ); |
| 273 |
$this->update_blog_option( $this->blog_id, 'patchstack_managed_text', $response['managed_string'] ); |
| 274 |
} |
| 275 |
|
| 276 |
if ( isset( $response['site_id'] ) ) { |
| 277 |
$this->update_blog_option( $this->blog_id, 'patchstack_site_id', $response['site_id'] ); |
| 278 |
} |
| 279 |
|
| 280 |
return $response; |
| 281 |
} |
| 282 |
|
| 283 |
/** |
| 284 |
* Send a request to our API for the IP address header. |
| 285 |
*/ |
| 286 |
public function send_header_request() |
| 287 |
{ |
| 288 |
$header = get_option( 'patchstack_firewall_ip_header', '' ); |
| 289 |
$computed = get_option( 'patchstack_ip_header_computed', 0 ); |
| 290 |
|
| 291 |
if ( $header == '' && ! $computed ) { |
| 292 |
// Create an OTT token. |
| 293 |
$ott = md5( wp_generate_password( 32, true, true ) ); |
| 294 |
update_option( 'patchstack_ott_action', $ott ); |
| 295 |
|
| 296 |
// Tell our API. |
| 297 |
wp_remote_request( |
| 298 |
$this->plugin->api_url . '/api/header', |
| 299 |
[ |
| 300 |
'method' => 'POST', |
| 301 |
'timeout' => 60, |
| 302 |
'redirection' => 5, |
| 303 |
'httpversion' => '1.0', |
| 304 |
'blocking' => true, |
| 305 |
'headers' => [ |
| 306 |
'Source-Host' => get_site_url(), |
| 307 |
], |
| 308 |
'body' => [ |
| 309 |
'token' => $ott, |
| 310 |
'url' => get_site_url() |
| 311 |
], |
| 312 |
'cookies' => [], |
| 313 |
] |
| 314 |
); |
| 315 |
} |
| 316 |
} |
| 317 |
|
| 318 |
/** |
| 319 |
* Get the firewall rules. |
| 320 |
* |
| 321 |
* @return array The firewall rules. |
| 322 |
*/ |
| 323 |
public function post_firewall_rule_json() { |
| 324 |
return $this->send_request( '/api/get-rules/3', 'POST' ); |
| 325 |
} |
| 326 |
|
| 327 |
/** |
| 328 |
* Get the .htaccess rules. |
| 329 |
* |
| 330 |
* @param array $settings The settings on which .htaccess rules to get. |
| 331 |
* @return array The .htaccess rules. |
| 332 |
*/ |
| 333 |
public function post_firewall_rule( $settings ) { |
| 334 |
return $this->send_request( '/api/rules', 'POST', $settings ); |
| 335 |
} |
| 336 |
|
| 337 |
/** |
| 338 |
* Get the .htaccess firewall rules. |
| 339 |
* |
| 340 |
* @return array The .htaccess rules. |
| 341 |
*/ |
| 342 |
public function post_firewall_htaccess_rule() { |
| 343 |
return $this->send_request( '/api/rules/htaccess', 'POST' ); |
| 344 |
} |
| 345 |
|
| 346 |
/** |
| 347 |
* Send the firewall logs to the API. |
| 348 |
* |
| 349 |
* @param array $logs |
| 350 |
* @return array |
| 351 |
*/ |
| 352 |
public function upload_firewall_logs( $logs ) { |
| 353 |
return $this->send_request( '/api/logs/log', 'POST', $logs ); |
| 354 |
} |
| 355 |
|
| 356 |
/** |
| 357 |
* Send the activity logs to the server. |
| 358 |
* |
| 359 |
* @param array $logs |
| 360 |
* @return array |
| 361 |
*/ |
| 362 |
public function upload_activity_logs( $logs ) { |
| 363 |
return $this->send_request( '/api/activity/log', 'POST', $logs ); |
| 364 |
} |
| 365 |
|
| 366 |
/** |
| 367 |
* Send WordPress core, theme, plugins versions and information to the API. |
| 368 |
* |
| 369 |
* @param array $software |
| 370 |
* @return array |
| 371 |
*/ |
| 372 |
public function upload_software( $software ) { |
| 373 |
return $this->send_request( '/api/sw/json', 'POST', $software ); |
| 374 |
} |
| 375 |
|
| 376 |
/** |
| 377 |
* Update the firewall status. |
| 378 |
* |
| 379 |
* @param array $status |
| 380 |
* @return array |
| 381 |
*/ |
| 382 |
public function update_firewall_status( $status ) { |
| 383 |
if ( $this->get_option( 'patchstack_license_free', 0 ) == 1 ) { |
| 384 |
return; |
| 385 |
} |
| 386 |
|
| 387 |
return $this->send_request( '/api/firewall/update/status', 'POST', $status ); |
| 388 |
} |
| 389 |
|
| 390 |
/** |
| 391 |
* Update the URL on the API. |
| 392 |
* |
| 393 |
* @param array $url The current URL of the site. |
| 394 |
* @return array |
| 395 |
*/ |
| 396 |
public function update_url( $url ) { |
| 397 |
return $this->send_request( '/api/plugin/update/url', 'POST', $url ); |
| 398 |
} |
| 399 |
|
| 400 |
/** |
| 401 |
* Send list of sites and get the id and secret key in response. |
| 402 |
* |
| 403 |
* @param array $sites |
| 404 |
* @return array |
| 405 |
*/ |
| 406 |
public function get_site_licenses( $sites ) { |
| 407 |
return $this->send_request( '/api/multisite-keys', 'POST', $sites ); |
| 408 |
} |
| 409 |
|
| 410 |
/** |
| 411 |
* Send a ping to the Patchstack API every 3 hours to make sure that the plugin is still running. |
| 412 |
* |
| 413 |
* @return void |
| 414 |
*/ |
| 415 |
public function ping() { |
| 416 |
$this->send_request( '/api/ping', 'POST', [ 'firewall' => $this->get_option( 'patchstack_basic_firewall' ) == 1 ? 1 : 0 ] ); |
| 417 |
} |
| 418 |
|
| 419 |
/** |
| 420 |
* Generate a secret value and send it to the Patchstack API for quick activation. |
| 421 |
* |
| 422 |
* @param string $secret |
| 423 |
* @return void |
| 424 |
*/ |
| 425 |
public function send_secret_token( $secret ) { |
| 426 |
$response = wp_remote_request( |
| 427 |
$this->plugin->api_url . '/api/secret', |
| 428 |
[ |
| 429 |
'method' => 'POST', |
| 430 |
'timeout' => 60, |
| 431 |
'redirection' => 5, |
| 432 |
'httpversion' => '1.0', |
| 433 |
'blocking' => true, |
| 434 |
'headers' => [ |
| 435 |
'Source-Host' => get_site_url(), |
| 436 |
], |
| 437 |
'body' => [ |
| 438 |
'secret' => $secret, |
| 439 |
'url' => get_site_url() |
| 440 |
], |
| 441 |
'cookies' => [], |
| 442 |
] |
| 443 |
); |
| 444 |
|
| 445 |
// Check error or status code. |
| 446 |
if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) != 200 ) { |
| 447 |
return false; |
| 448 |
} |
| 449 |
|
| 450 |
// Determine if auto-activation succeeded. |
| 451 |
$result = json_decode( wp_remote_retrieve_body( $response ), true ); |
| 452 |
if ($result && isset($result['activated'])) { |
| 453 |
return $result['activated']; |
| 454 |
} |
| 455 |
|
| 456 |
return false; |
| 457 |
} |
| 458 |
} |
| 459 |
|
