public static string CalculateHash(IConfiguration configurationService, JwtData data)
{
if (data == null || configurationService == null)
{
return(null);
}
var instanteToCalculate = Newtonsoft.Json.JsonConvert.DeserializeObject <JwtData>(
Newtonsoft.Json.JsonConvert.SerializeObject(data)
);
instanteToCalculate.Hash = null;
return(String.Join("", System.Security.Cryptography.SHA256.Create().ComputeHash(
Encoding.UTF8.GetBytes(
String.Concat(configurationService.GetSection("Authentication:Seed").Value, Newtonsoft.Json.JsonConvert.SerializeObject(data), configurationService.GetSection("Authentication:Sufix").Value)
)
).Select(x => x.ToString("X2"))).ToLower());
}
public ContextIronMountain(IConfiguration config, ClaimsPrincipal principal)
{
if (principal != null && principal.Identity != null && principal.Identity.IsAuthenticated && principal.Claims != null)
{
foreach (var claim in principal.Claims)
{
switch (claim.Type)
{
case ClaimTypes.Name:
this.Name = claim.Value;
break;
case ClaimTypes.UserData:
var data = Newtonsoft.Json.JsonConvert.DeserializeObject <JwtData>(claim.Value);
this.UserData = data;
this.IsValid = data.Hash == JwtData.CalculateHash(this.config, data);
break;
default:
break;
}
}
}
}