<?php
/**
 * RSA解密测试脚本
 * 测试建行ccbParamSJ参数解密
 */

// 手动加载必要的类
require_once __DIR__ . '/../library/ccblife/CcbRSA.php';

use addons\shopro\library\ccblife\CcbRSA;

echo "========================================\n";
echo "   建行 RSA 解密测试\n";
echo "========================================\n\n";

// 测试参数
$ccbParamSJ = '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';

echo "输入参数:\n";
echo "ccbParamSJ 长度: " . strlen($ccbParamSJ) . "\n\n";

// 直接使用配置文件中的默认私钥（BASE64格式）
// 这是配置文件 ccblife.php 中的默认值
$privateKey = 'MIICeAIBADANBgkqhkiG9w0BAQEFAASCAmIwggJeAgEAAoGBALrJmPmtQfP6mURtMxLEXqJHLldN3zYukoaRxG0lw2IdcC86H9C9brFz4YlJ+98z2mdELJaQWu8VWI4actSuPKgHTBr9MSpaii0QQpdINpwXJD9AglIrT7MxhMLYx3qAYDhjKUlC5hnWVYOg4sG32k/3dCebRHY8RDlrXUfHB2+VAgMBAAECgYArgn5R2pv8WymMmOtGudtZbb9LsuYF1v9mvVnGGv/SQQ060w1KMHYye83TjxpOueNsHqNMR0AHZS+Fmn+ZLyUNj9S77oQvUx5HQvY2/TDnsKbETzEMDybIWB+XdLsUkOrB3peVLTbk25i6oSNPOT2Fvd8TWbDqzBL9Ci27uJH72QJBAP/DfDLYoYx9OIRCykkxrDdQVFEkzhXj0wIkLa0Wnf8kP/JfBqvr0AGUPF8nEfh7fLVXYQlh5ab2FL5KvUifSL8CQQC69crW0fryyDHePp6OIVRUbw0T93h52vbGXnoQ6wdvKxZeL3MsfdNUvsJYeSxmtyY+LLgz1p3qOoEn6UpLvCirAkEA4N7qUvY+y3vJdhgXLNV8mkGJcLKQc5SUkJxogHeTQKGJi7ra7ctuXgUMM4jxduxz0CjcS1iEhxBzWn/x/mj1lwJBALgtv39VKLTXx1i7s5Ms/liXdfi/iC3zKbxOAk58WryHY+exMvMXmYMY0Xg7FySxNLl3cJeQy8ydifL5fbmSSTUCQQCj/YUbcTP8BQ6N0AgFdBwmXJyiNkB9zaDI5cEtpSCgq72m8lfn883GJ1MT7nKVXeX69/q5yDQUYiYPBXH4lCEC';

echo "使用默认私钥（来自配置文件）\n";
echo "私钥长度: " . strlen($privateKey) . "\n\n";

// 执行解密
echo "========================================\n";
echo "开始解密...\n";
echo "========================================\n\n";

try {
    // 步骤1: URLDecode
    echo "步骤1: URLDecode\n";
    $urlDecoded = urldecode($ccbParamSJ);
    echo "  URLDecode 后长度: " . strlen($urlDecoded) . "\n";
    echo "  是否改变: " . ($urlDecoded === $ccbParamSJ ? '否' : '是') . "\n\n";

    // 步骤2: 显示密钥信息
    echo "步骤2: 私钥信息\n";
    echo "  私钥长度: " . strlen($privateKey) . "\n";
    echo "  是否包含 PEM 头: " . (strpos($privateKey, '-----BEGIN') !== false ? '是' : '否') . "\n\n";

    // 步骤3: 尝试 RSA 解密
    echo "步骤3: RSA 解密\n";

    // 直接调用 CcbRSA::decrypt
    $decrypted = CcbRSA::decrypt($urlDecoded, $privateKey);

    echo "  解密成功!\n";
    echo "  解密后长度: " . strlen($decrypted) . "\n";
    echo "  解密内容: " . $decrypted . "\n\n";

    // 步骤4: 解析参数
    echo "步骤4: 解析参数\n";
    parse_str($decrypted, $params);
    echo "  解析结果:\n";
    foreach ($params as $key => $value) {
        echo "    {$key} = {$value}\n";
    }

    echo "\n========================================\n";
    echo "✅ 解密成功！\n";
    echo "========================================\n";

} catch (\Exception $e) {
    echo "\n========================================\n";
    echo "❌ 解密失败！\n";
    echo "========================================\n";
    echo "错误信息: " . $e->getMessage() . "\n";
    echo "错误行号: " . $e->getLine() . "\n";
    echo "错误文件: " . $e->getFile() . "\n";
    echo "\n堆栈跟踪:\n" . $e->getTraceAsString() . "\n";

    // 额外诊断
    echo "\n========================================\n";
    echo "诊断信息\n";
    echo "========================================\n";

    // 检查 BASE64 解码
    echo "\n1. BASE64 解码测试:\n";
    $base64Decoded = base64_decode($urlDecoded);
    if ($base64Decoded === false) {
        echo "   ❌ BASE64 解码失败\n";
    } else {
        echo "   ✓ BASE64 解码成功\n";
        echo "   解码后长度: " . strlen($base64Decoded) . "\n";
        echo "   十六进制预览: " . bin2hex(substr($base64Decoded, 0, 32)) . "...\n";
    }

    // 检查私钥格式
    echo "\n2. 私钥格式测试:\n";
    try {
        // 格式化私钥
        $formattedKey = $privateKey;
        if (strpos($formattedKey, '-----BEGIN') === false) {
            $formattedKey = preg_replace('/\s+/', '', $formattedKey);
            $formattedKey = "-----BEGIN RSA PRIVATE KEY-----\n" .
                           chunk_split($formattedKey, 64, "\n") .
                           "-----END RSA PRIVATE KEY-----\n";
        }

        $keyResource = openssl_pkey_get_private($formattedKey);
        if ($keyResource === false) {
            echo "   ❌ 私钥格式错误: " . openssl_error_string() . "\n";
        } else {
            echo "   ✓ 私钥格式正确\n";
            $keyDetails = openssl_pkey_get_details($keyResource);
            echo "   密钥类型: " . ($keyDetails['type'] === OPENSSL_KEYTYPE_RSA ? 'RSA' : '未知') . "\n";
            echo "   密钥位数: " . $keyDetails['bits'] . "\n";
            openssl_free_key($keyResource);
        }
    } catch (\Exception $e2) {
        echo "   ❌ 私钥检查失败: " . $e2->getMessage() . "\n";
    }

    // 检查数据长度
    echo "\n3. 数据长度检查:\n";
    if (isset($base64Decoded)) {
        $dataLen = strlen($base64Decoded);
        echo "   加密数据长度: {$dataLen} 字节\n";

        if (isset($keyDetails)) {
            $keySize = $keyDetails['bits'] / 8;
            $blockCount = $dataLen / $keySize;
            echo "   密钥大小: {$keySize} 字节\n";
            echo "   分块数量: " . $blockCount . " (应该是整数)\n";

            if ($blockCount != floor($blockCount)) {
                echo "   ⚠️  警告: 数据长度不是密钥大小的整数倍\n";
            }
        }
    }
}