kknongchang_2506/ThirdParty/Urs/Request/UrsCheckBalanceRequest.php

<?php

namespace ThirdParty\Urs\Request;

use App\Module\ThirdParty\Services\BaseRequest;

/**
 * URS余额检查请求类
 *
 * 专门处理余额检查请求，遵循"一个Request类只完成一种请求"的原则
 */
class UrsCheckBalanceRequest extends BaseRequest
{
    /**
     * 构造函数
     */
    public function __construct()
    {
        // 使用'urs'作为服务代码，需要在thirdparty_services表中注册
        parent::__construct('urs');
    }

    /**
     * 处理余额检查请求
     *
     * @param array $params 请求参数
     * @return array
     * @throws \Exception
     */
    protected function handler(array $params): array
    {
        return $this->handleCheck($params);
    }

    /**
     * 处理余额检查
     *
     * @param array $params 请求参数
     * @return array
     * @throws \Exception
     */
    protected function handleCheck(array $params): array
    {
        // 验证必需参数
        if (empty($params['user_id'])) {
            throw new \Exception('user_id参数是必填的');
        }

        // 获取URS配置
        $config = $this->getConfig();
        $apiUrl = $config['api_url'] ?? '';
        $appId = $config['app_id'] ?? '';
        $appSecret = $config['app_secret'] ?? '';

        if (empty($apiUrl) || empty($appId) || empty($appSecret)) {
            throw new \Exception('URS配置不完整，缺少api_url、app_id或app_secret');
        }

        $requestData = [
            'app_id' => $appId,
            'user_id' => $params['user_id'],
            'timestamp' => time(),
        ];

        $requestData['sign'] = $this->generateSign($requestData, $appSecret);

        $response = $this->sendHttpRequest($apiUrl . '/check', $requestData);

        return [
            'success' => $response['code'] === 0,
            'message' => $response['message'] ?? '',
            'data' => $response['data'] ?? [],
        ];
    }

    /**
     * 生成签名
     *
     * @param array $data 数据
     * @param string $secret 密钥
     * @return string
     */
    protected function generateSign(array $data, string $secret): string
    {
        // 排序参数
        ksort($data);

        // 构建签名字符串
        $signString = '';
        foreach ($data as $key => $value) {
            if ($key !== 'sign') {
                $signString .= $key . '=' . $value . '&';
            }
        }
        $signString .= 'key=' . $secret;

        return md5($signString);
    }

    /**
     * 发送HTTP请求
     *
     * @param string $url 请求URL
     * @param array $data 请求数据
     * @return array
     * @throws \Exception
     */
    protected function sendHttpRequest(string $url, array $data): array
    {
        $ch = curl_init();

        curl_setopt_array($ch, [
            CURLOPT_URL => $url,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => json_encode($data),
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTPHEADER => [
                'Content-Type: application/json',
                'User-Agent: KKU-ThirdParty-URS/1.0',
            ],
        ]);

        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $error = curl_error($ch);

        curl_close($ch);

        if ($error) {
            throw new \Exception("HTTP请求失败: {$error}");
        }

        if ($httpCode !== 200) {
            throw new \Exception("HTTP请求失败，状态码: {$httpCode}");
        }

        $result = json_decode($response, true);
        if (json_last_error() !== JSON_ERROR_NONE) {
            throw new \Exception("响应数据格式错误: " . json_last_error_msg());
        }

        return $result;
    }
}