/// <summary>
/// 如果Token过期，则马上重新计算
/// </summary>
/// <param name="userId"></param>
/// <param name="account"></param>
public static void CheckTokenHasExpiry(string userId, string account)
{
if (!string.IsNullOrEmpty(userId) && userId.Equals("guest"))
{
bool has = CacheFactory.GetCache().Exists("JWT_TokenCacheKey:Guest");
if (has)
{
JWTPlayloadInfo playload = new JWTPlayloadInfo
{
iss = "S_COMMON_TOKTN",
sub = account,
aud = userId,
userid = CommonHelper.GetGuid(),
extend = "PUBLIC_TOKTN"
};
GetToken(playload);
}
}
else
{
bool has = CacheFactory.GetCache().Exists(string.Format("JWT_TokenCacheKey:{0}", userId));
if (has)
{
JWTPlayloadInfo playload = new JWTPlayloadInfo
{
iss = "S_USER_TOKTN",
sub = account,
aud = userId,
userid = CommonHelper.GetGuid(),
extend = "USER_TOKTN"
};
GetToken(playload);
}
}
}
private static bool Check(JWTPlayloadInfo playload, string cacheToken, string token)
{
if (string.IsNullOrEmpty(cacheToken))
{
return(false);
}
if (string.IsNullOrEmpty(token))
{
return(false);
}
if (!cacheToken.Equals(token))
{
return(false);
}
//Token过期
DateTime exp = DateTimeHelper.GetDateTime(playload.exp);
if (DateTime.Now > exp)
{
if (!string.IsNullOrEmpty(playload.aud) && playload.aud.Equals("guest"))
{
CacheFactory.GetCache().Remove("JWT_TokenCacheKey:Guest");
}
else
{
CacheFactory.GetCache().Remove(string.Format("JWT_TokenCacheKey:{0}", playload.aud));
}
return(false);
}
return(true);
}
/// <summary>
/// 签发Token
/// </summary>
/// <param name="playload">载荷</param>
/// <returns></returns>
public static string GetToken(JWTPlayloadInfo playload)
{
string token = String.Empty;
IJwtAlgorithm algorithm = new HMACSHA256Algorithm();
IJsonSerializer serializer = new JsonNetSerializer();
IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
IJwtEncoder encoder = new JwtEncoder(algorithm, serializer, urlEncoder);
//设置过期时间
TimeSpan time = TimeSpan.FromMinutes(120);
playload.exp = DateTimeHelper.GetTimeStamp(DateTime.Now.AddHours(2)).ToString();
Dictionary <string, object> dict = playload.Object2Dictionary();
//获取私钥
string secret = GetSecret();
//将Token保存在缓存中
if (!string.IsNullOrEmpty(playload.aud) && playload.aud.Equals("guest"))
{
//计算公用Token
token = CacheFactory.GetCache().Get("JWT_TokenCacheKey:Guest", () =>
{
return(encoder.Encode(dict, secret));
}, time);
}
else
{
//计算Token
token = CacheFactory.GetCache().Get(string.Format("JWT_TokenCacheKey:{0}", playload.aud), () =>
{
return(encoder.Encode(dict, secret));
}, time);
}
return(token);
}
/// <summary>
/// Token校验
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
public static JWTPlayloadInfo CheckToken(string token)
{
if (string.IsNullOrEmpty(token))
{
return(null);
}
IJsonSerializer serializer = new JsonNetSerializer();
IDateTimeProvider provider = new UtcDateTimeProvider();
IJwtValidator validator = new JwtValidator(serializer, provider);
IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();
IJwtDecoder decoder = new JwtDecoder(serializer, validator, urlEncoder);
//获取私钥
string secret = GetSecret();
try
{
JWTPlayloadInfo playload = decoder.DecodeToObject <JWTPlayloadInfo>(token, secret, true);
if (playload != null)
{
if (!string.IsNullOrEmpty(playload.aud) && playload.aud.Equals("guest"))
{
string cacheToken = CacheFactory.GetCache().Get <string>("JWT_TokenCacheKey:Guest");
return(Check(playload, cacheToken, token) ? playload : null);
}
else
{
string cacheToken = CacheFactory.GetCache().Get <string>(string.Format("JWT_TokenCacheKey:{0}", playload.aud));
return(Check(playload, cacheToken, token) ? playload : null);
}
}
}
catch (Exception e)
{
return(null);
}
return(null);
}
