// 解析jwttoken
public ClaimsPrincipal CanRefresh(string token)
{
ClaimsPrincipal claimsPrincipal;
// 解析旧token
try
{
claimsPrincipal = new JwtSecurityTokenHandler().ValidateToken(token, new TokenValidationParameters
{
ValidIssuer = _jwtOption.Issuer,
ValidateIssuer = true,
ValidAudience = _jwtOption.Audience,
ValidateAudience = true,
IssuerSigningKey = _jwtOption.SecurityKey,
ValidateIssuerSigningKey = true,
ValidateLifetime = false,
}, out SecurityToken securityToken);
}
catch
{
// token无法解析
return(null);
}
// 取得旧token过期时间
var oldExpires = claimsPrincipal.GetClaimValue(CustomClaimTypes.Expires);
var expireDateTime = Utils.DateTimeUtil.GetDateTime(oldExpires);
//// 当超过刷新间或者token仍在有效期内的情况下不刷新token
//if (expireDateTime.AddMinutes(_jwtOption.RefreshEffectiveTime) < DateTime.Now || expireDateTime > DateTime.Now)
// 期限超过则不能刷新
if (expireDateTime.AddMinutes(_jwtOption.RefreshEffectiveTime) < DateTime.Now)
{
return(null);
}
return(claimsPrincipal);
}