<?php
if (!defined('ABSPATH')) {
exit;
}
class WC_Helper_API
{
public static $api_base;
public static function load()
{
self::$api_base = apply_filters('woocommerce_helper_api_base', 'https://woocommerce.com/wp-json/helper/1.0');
}
public static function request($endpoint, $args = array())
{
$url = self::url($endpoint);
if (!empty($args['authenticated'])) {
if (!self::_authenticate($url, $args)) {
return new WP_Error('authentication', 'Authentication failed.');
}
}
$args = apply_filters('woocommerce_helper_api_request_args', $args, $endpoint);
return wp_safe_remote_request($url, $args);
}
private static function _authenticate(&$url, &$args)
{
$auth = WC_Helper_Options::get('auth');
if (empty($auth['access_token']) || empty($auth['access_token_secret'])) {
return false;
}
$request_uri = parse_url($url, PHP_URL_PATH);
$query_string = parse_url($url, PHP_URL_QUERY);
if (is_string($query_string)) {
$request_uri .= '?' . $query_string;
}
$data = array('host' => parse_url($url, PHP_URL_HOST), 'request_uri' => $request_uri, 'method' => !empty($args['method']) ? $args['method'] : 'GET');
if (!empty($args['body'])) {
$data['body'] = $args['body'];
}
$signature = hash_hmac('sha256', json_encode($data), $auth['access_token_secret']);
if (empty($args['headers'])) {
$args['headers'] = array();
}
$headers = array('Authorization' => 'Bearer ' . $auth['access_token'], 'X-Woo-Signature' => $signature);
$args['headers'] = wp_parse_args($headers, $args['headers']);
$url = add_query_arg(array('token' => $auth['access_token'], 'signature' => $signature), $url);
return true;
}
public static function get($endpoint, $args = array())
{
$args['method'] = 'GET';
return self::request($endpoint, $args);
}
public static function post($endpoint, $args = array())
{
$args['method'] = 'POST';
return self::request($endpoint, $args);
}
public static function put($endpoint, $args = array())
{
$args['method'] = 'PUT';
return self::request($endpoint, $args);
}
public static function url($endpoint)
{
$endpoint = ltrim($endpoint, '/');
$endpoint = sprintf('%s/%s', self::$api_base, $endpoint);
$endpoint = esc_url_raw($endpoint);
return $endpoint;
}
}
WC_Helper_API::load();