<?php
/** Fixed enrollment HTTP exchange and response validation. */
if (!defined('ABSPATH')) {
    exit;
}
require_once __DIR__ . '/class-akkedli-v2-credential-response.php';
class Akkedli_V2_Enrollment_Transport
{
    const LIMIT = 4096;
    public function request($code, $callback_url)
    {
        $body = wp_json_encode(array('code' => $code, 'callback_url' => $callback_url), JSON_UNESCAPED_SLASHES);
        if (!is_string($body)) {
            return array('kind' => 'ambiguous');
        }
        try {
            $response = wp_remote_post(Akkedli_V2_Enrollment::URL, array(
                'body' => $body, 'headers' => array('Content-Type' => 'application/json'),
                'timeout' => 10, 'redirection' => 0, 'sslverify' => true,
                'limit_response_size' => self::LIMIT, 'reject_unsafe_urls' => true,
                'data_format' => 'body', 'cookies' => array(),
            ));
        } catch (Throwable $error) {
            unset($error, $body);
            return array('kind' => 'ambiguous');
        }
        unset($body);
        if (is_wp_error($response)) {
            return array('kind' => 'ambiguous');
        }
        $status = wp_remote_retrieve_response_code($response);
        if (401 === $status) {
            return array('kind' => 'definite_rejection');
        }
        if (200 !== $status) {
            return array('kind' => 'ambiguous');
        }
        $value = Akkedli_V2_Credential_Response::parse(
            wp_remote_retrieve_body($response), $callback_url, self::LIMIT
        );
        return is_array($value) ? array_merge(array('kind' => 'success'), $value)
            : array('kind' => 'ambiguous');
    }
}