laipower/wp-content/plugins/w3-total-cache/Cdnfsd_LimeLight_Api.php

102 lines
2.3 KiB
PHP

<?php
namespace W3TC;
class Cdnfsd_LimeLight_Api {
private $url_base;
public function __construct( $short_name, $username, $api_key ) {
$this->url_base = 'https://purge.llnw.com/purge/v1/account/' .
$short_name . '/requests';
$this->username = $username;
$this->api_key = $api_key;
}
public function purge( $items ) {
$body = json_encode( array( 'patterns' => $items ) );
return $this->_wp_remote_post( '', $body );
}
public function get( $uri ) {
return $this->_wp_remote_get( $uri );
}
private function _wp_remote_get( $uri, $body = '', $headers = array() ) {
$url = $this->url_base . $uri;
$headers = $this->_add_headers( $headers, $url, 'GET', $body );
$result = wp_remote_get( $url, array(
'headers' => $headers,
'body' => $body
) );
return $this->_decode_response( $result );
}
private function _wp_remote_post( $uri, $body, $headers = array() ) {
$url = $this->url_base . $uri;
$headers = $this->_add_headers( $headers, $url, 'POST', $body );
$result = wp_remote_post( $url, array(
'headers' => $headers,
'body' => $body
) );
return $this->_decode_response( $result );
}
private function _add_headers( $headers, $url, $method, $body ) {
$timestamp = '' . ( time() * 1000 );
$headers['Content-Type'] = 'application/json';
$headers['X-LLNW-Security-Principal'] = $this->username;
$headers['X-LLNW-Security-Timestamp'] = $timestamp;
$headers['X-LLNW-Security-Token'] = hash_hmac( 'sha256',
$method . $url . $timestamp . $body, pack( 'H*', $this->api_key ) );
return $headers;
}
private function _decode_response( $result ) {
if ( is_wp_error( $result ) )
throw new \Exception( 'Failed to reach API endpoint' );
$response_json = @json_decode( $result['body'], true );
if ( is_null( $response_json ) ) {
throw new \Exception(
'Failed to reach API endpoint, got unexpected response ' .
$result['body'] );
}
if ( $result['response']['code'] != '200' &&
$result['response']['code'] != '201' &&
$result['response']['code'] != '202' &&
$result['response']['code'] != '204' ) {
if ( isset( $response_json['errors'] ) &&
isset( $response_json['errors'][0]['description'] ) ) {
throw new \Exception( $response_json['errors'][0]['description'] );
}
throw new \Exception( $result['body'] );
}
return $response_json;
}
}