/// <summary>
/// 解析JWT令牌
/// </summary>
/// <param name="token">JWT令牌</param>
/// <param name="claim">Claim名称</param>
/// <returns>返回指定的Claim值，解析失败返回null</returns>
public object Parse(string token, JwtClaimNames claim)
{
if (string.IsNullOrWhiteSpace(token))
{
throw new ArgumentException(nameof(token));
}
// 令牌解密
string jwtStr;
if (_useAes)
{
var jwtBytes = JwtBase64Url.Decode(token); // 解码
jwtStr = Encoding.UTF8.GetString(Aes.Decrypt(jwtBytes)); // 解密
}
else
{
jwtStr = token;
}
var parts = jwtStr.Split('.');
if (parts.Length != 3)
{
throw new ArgumentOutOfRangeException(token, "令牌必须由3个由点分隔的部分组成");
}
// 解码负载
var payloadDecode = JwtBase64Url.Decode(parts[1]);
var json = Encoding.UTF8.GetString(payloadDecode);
var claims = Json.Json.Deserialize <IDictionary <string, object> >(json);
if (claims != null && claims.TryGetValue(claim.ToStr(), out var result))
{
return(result);
}
return(null);
}
/// <summary>
/// 增加Claim
/// </summary>
/// <param name="name">Claim名称</param>
/// <param name="value">Claim值</param>
/// <exception cref="ArgumentNullException" />
/// <returns>返回当前构造器实例</returns>
public JwtBuilder AddClaim(JwtClaimNames name, object value)
{
AddClaim(name.ToStr(), value);
return(this);
}
/// <summary>
/// 获得JwtClaimNames当前枚举值
/// </summary>
public static string ToStr(this JwtClaimNames value)
{
return(GetDescription(value));
}
