/// <summary>
/// 解码用户信息
/// </summary>
/// <param name="key"></param>
/// <param name="encryptedData"></param>
/// <param name="iv"></param>
/// <returns></returns>
public static T DecryptWxMsg <T>(this IEncryptedDataInfo encryptedData, string sessionKey) where T : class
{
if (string.IsNullOrWhiteSpace(encryptedData.EncryptedData))
{
throw new WFwException(Results.OperationResultType.ParamIsEmpty, "解码内容", "");
}
if (string.IsNullOrWhiteSpace(sessionKey))
{
throw new WFwException(Results.OperationResultType.ParamIsEmpty, "解码密钥", "");
}
if (string.IsNullOrWhiteSpace(encryptedData.Iv))
{
throw new WFwException(Results.OperationResultType.ParamIsEmpty, "初始向量", "");
}
try
{
using (Aes aesAlg = Aes.Create())
{
aesAlg.Mode = CipherMode.CBC;
aesAlg.BlockSize = 128;
aesAlg.Padding = PaddingMode.PKCS7;
aesAlg.Key = Convert.FromBase64String(sessionKey);
aesAlg.IV = Convert.FromBase64String(encryptedData.Iv);
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(Convert.FromBase64String(encryptedData.EncryptedData)))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
return(Newtonsoft.Json.JsonConvert.DeserializeObject <T>(srDecrypt.ReadToEnd()));
}
}
}
}
}
catch
{
//throw new WFwException(Results.OperationResultType.IsErr, "解码失败", $"Data={encryptedData.EncryptedData};Iv={encryptedData.Iv};sessionKey:{sessionKey}");
throw new WFwException(Results.OperationResultType.IsErr, "解码失败", nameof(encryptedData.EncryptedData), encryptedData.EncryptedData, nameof(encryptedData.Iv), encryptedData.Iv, nameof(sessionKey), sessionKey);
}
}
/// <summary>
/// 解码获得用户信息
/// </summary>
/// <param name="encryptedData"></param>
/// <param name="sessionKey"></param>
/// <returns></returns>
public static UserInfo DecryptUserInfo(IEncryptedDataInfo encryptedData, string sessionKey)
{
return(encryptedData.DecryptWxMsg <UserInfo>(sessionKey));
}
/// <summary>
/// 解码获得手机号
/// </summary>
/// <param name="encryptedData"></param>
/// <param name="sessionKey"></param>
/// <returns></returns>
public static PhoneInfo DecryptPhone(IEncryptedDataInfo encryptedData, string sessionKey)
{
return(encryptedData.DecryptWxMsg <PhoneInfo>(sessionKey));
}
