EasyWeChat\MicroMerchant\Certficates\Client

Complexity

Total Complexity

7

Size/Duplication

Total Lines	80
Duplicated Lines	0 %

Test Coverage

Coverage

0%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	get()	0	38	4
A	decrypt()	0	17	3

<?php

/*
 * This file is part of the overtrue/wechat.
 *
 * (c) overtrue <i@overtrue.me>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace EasyWeChat\MicroMerchant\Certficates;

use EasyWeChat\Kernel\Exceptions\InvalidArgumentException;
use EasyWeChat\MicroMerchant\Kernel\BaseClient;
use EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException;

/**
 * Class Client.
 *
 * @author   liuml  <liumenglei0211@163.com>
 * @DateTime 2019-05-30  14:19
 */
class Client extends BaseClient
{
    /**
     * get certficates.
     *
     * @param bool $returnRaw
     *
     * @return array|\EasyWeChat\Kernel\Support\Collection|object|\Psr\Http\Message\ResponseInterface|string
     *
     * @throws \EasyWeChat\Kernel\Exceptions\InvalidArgumentException
     * @throws \EasyWeChat\Kernel\Exceptions\InvalidConfigException
     * @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException
     * @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidSignException
     */
    public function get(bool $returnRaw = false)
    {
        $params = [
            'sign_type' => 'HMAC-SHA256',
            'nonce_str' => uniqid('micro'),
        ];

        $responseType = $this->app->config->get('response_type');
        if (true === $returnRaw) {
            return $this->requestRaw('risk/getcertficates', $params);
        }

        $this->app->config->set('response_type', 'array');
        $response = $this->request('risk/getcertficates', $params);
        $this->app->config->set('response_type', $responseType);

        if ('SUCCESS' !== $response['return_code']) {
            throw new InvalidArgumentException(
                sprintf(
                    'Failed to get certificate. return_code_msg: "%s" .',
                    $response['return_code'].'('.$response['return_msg'].')'
                )
            );
        }
        if ('SUCCESS' !== $response['result_code']) {
            throw new InvalidArgumentException(
                sprintf(
                    'Failed to get certificate. result_err_code_des: "%s" .',
                    $response['result_code'].'('.$response['err_code'].'['.$response['err_code_des'].'])'
                )
            );
        }
        $certificates = \GuzzleHttp\json_decode($response['certificates'], true)['data'][0];
        $ciphertext = $this->decrypt($certificates['encrypt_certificate']);
        unset($certificates['encrypt_certificate']);
        $certificates['certificates'] = $ciphertext;

        return $certificates;
    }

    /**
     * decrypt ciphertext.
     *
     * @param array $encryptCertificate
     *
     * @return string
     *
     * @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException
     */
    public function decrypt(array $encryptCertificate)
    {
        if (false === extension_loaded('sodium')) {
            throw new InvalidExtensionException('sodium extension is not installed，Reference link https://php.net/manual/zh/book.sodium.php');

This line exceeds maximum limit of 140 characters; contains 142 characters

        }

        if (false === sodium_crypto_aead_aes256gcm_is_available()) {
            throw new InvalidExtensionException('aes256gcm is not currently supported');
        }

        // sodium_crypto_aead_aes256gcm_decrypt function needs to open libsodium extension.
        // https://www.php.net/manual/zh/function.sodium-crypto-aead-aes256gcm-decrypt.php
        return sodium_crypto_aead_aes256gcm_decrypt(
            base64_decode($encryptCertificate['ciphertext'], true),
            $encryptCertificate['associated_data'],
            $encryptCertificate['nonce'],
            $this->app['config']->apiv3_key
        );
    }
}