<?php

/**
 * AES CBC 加密函数，返回 Base64
 * @param string $plainText 要加密的明文
 * @param string $key 16进制密钥
 * @return string 加密后的Base64字符串
 */
function aesEncrypt($plainText, $key) {
    // 将16进制的密钥转换为二进制
    $keyBin = hex2bin($key);
    
    // 生成随机IV
    $blockSize = 16; // AES 块大小
    $iv = openssl_random_pseudo_bytes($blockSize);
    
    // 加密
    $encrypted = openssl_encrypt(
        $plainText,
        'AES-128-CBC',
        $keyBin,
        OPENSSL_RAW_DATA,
        $iv
    );
    
    // 将IV和加密数据拼接后进行Base64编码
    return base64_encode($iv . $encrypted);
}

/**
 * AES CBC 解密函数，返回解密后的明文
 * @param string $encryptedText Base64编码的加密文本
 * @param string $key 16进制密钥
 * @return string 解密后的明文
 */
function aesDecrypt($encryptedText, $key) {
    // 将16进制的密钥转换为二进制
    $keyBin = hex2bin($key);
    
    // 解码Base64
    $encryptedBin = base64_decode($encryptedText);
    
    // 提取IV和加密数据
    $blockSize = 16;
    $iv = substr($encryptedBin, 0, $blockSize);
    $encryptedData = substr($encryptedBin, $blockSize);
    
    // 解密
    $decrypted = openssl_decrypt(
        $encryptedData,
        'AES-128-CBC',
        $keyBin,
        OPENSSL_RAW_DATA,
        $iv
    );
    
    return $decrypted;
}

/**
 * 调用API函数
 */
function callApi($name, $id_card, $mobile_no, $auth_date) {
    // API相关配置
    $interface_name = "XXXXXXXX";  // 接口编号
    $access_id = "XXXXXXXXXXX";
    $key = "XXXXXXXXXXXXXXXXXXXXX";
    $url = "https://api.tianyuanapi.com/api/v1/{$interface_name}";
    
    // 构建请求参数
    $params = array(
        "mobile_no" => $mobile_no,
        "id_card" => $id_card,
        "auth_date" => $auth_date,
        "name" => $name
    );
    
    // 将参数转换为JSON字符串并加密
    $json_str = json_encode($params, JSON_UNESCAPED_UNICODE);
    echo "请求参数: {$json_str}\n";
    $encrypted_data = aesEncrypt($json_str, $key);
    echo "加密后的数据: {$encrypted_data}\n";
    
    // 发送请求
    $headers = array(
        "Access-Id: {$access_id}",
        "Content-Type: application/json"
    );
    
    $payload = array(
        "data" => $encrypted_data
    );
    
    echo "发送请求到: {$url}\n";
    
    try {
        // 使用PHP原生HTTP请求方式
        $context = stream_context_create(array(
            'http' => array(
                'method' => 'POST',
                'header' => implode("\r\n", $headers),
                'content' => json_encode($payload),
                'timeout' => 30
            )
        ));
        
        $response = file_get_contents($url, false, $context);
        
        if ($response === false) {
            throw new Exception("HTTP请求失败");
        }
        
        $response_data = json_decode($response, true);
        echo "API响应: " . json_encode($response_data, JSON_UNESCAPED_UNICODE) . "\n";
        
        // 处理响应
        $code = $response_data['code'] ?? null;
        $message = $response_data['message'] ?? '';
        $encrypted_response_data = $response_data['data'] ?? '';
        
        $result = array(
            "code" => $code,
            "success" => $code == 0,
            "message" => $message,
            "encrypted_response" => $encrypted_response_data
        );
        
        // 如果有返回data，尝试解密
        if ($encrypted_response_data) {
            try {
                $decrypted_data = aesDecrypt($encrypted_response_data, $key);
                $result["decrypted_response"] = json_decode($decrypted_data, true);
            } catch (Exception $e) {
                echo "解密响应数据失败: {$e->getMessage()}\n";
                $result["decrypted_response"] = null;
            }
        }
        
        return $result;
        
    } catch (Exception $e) {
        echo "请求失败: {$e->getMessage()}\n";
        return array("success" => false, "message" => "请求失败: {$e->getMessage()}");
    }
}

/**
 * 主函数
 */
function main() {
    echo "=====  个人涉诉详版 =====\n";
    
    // 直接设置手机号和姓名
    $name = "XXXXXXXX";
    $id_card = "XXXXXXXXXXXXX";
    $mobile_no = "XXXXXXXXXXXXXXXXXXXX";
    $auth_date = "20250318-20270318";
    
    $result = callApi($name, $id_card, $mobile_no, $auth_date);
    
    echo "\n===== 结果 =====\n";
    if ($result["success"]) {
        echo "请求成功!\n";
        if (isset($result["decrypted_response"])) {
            echo "解密后的响应: " . json_encode($result['decrypted_response'], JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT) . "\n";
        } else {
            echo "未能获取或解密响应数据\n";
        }
    } else {
        echo "请求失败: " . ($result['message'] ?? '未知错误') . "\n";
    }
}

// 运行主函数
main();
?>