/// <summary>
/// Validates a tokens lifetime, audience, and issuer using JWT payload validation rules.
/// Also checks for token replay
/// </summary>
protected virtual TokenValidationResult ValidateTokenPayload(JwtPayloadSecurityToken token, TokenValidationParameters validationParameters)
{
if (token == null)
{
return new TokenValidationResult {
Exception = new ArgumentNullException(nameof(token))
}
}
;
if (validationParameters == null)
{
return new TokenValidationResult {
Exception = new ArgumentNullException(nameof(validationParameters))
}
}
;
var expires = token.ValidTo == DateTime.MinValue ? null : new DateTime?(token.ValidTo);
var notBefore = token.ValidFrom == DateTime.MinValue ? null : new DateTime?(token.ValidFrom);
try
{
ValidateLifetime(notBefore, expires, token, validationParameters);
ValidateAudience(token.Audiences, token, validationParameters);
ValidateIssuer(token.Issuer, token, validationParameters);
ValidateTokenReplay(expires, token.TokenHash, validationParameters);
}
catch (Exception e)
{
return(new TokenValidationResult {
Exception = e
});
}
return(new TokenValidationResult
{
SecurityToken = token,
ClaimsIdentity = CreateClaimsIdentity(token, validationParameters),
IsValid = true
});
}
protected virtual ClaimsIdentity CreateClaimsIdentity(JwtPayloadSecurityToken token, TokenValidationParameters validationParameters)
{
if (token == null)
{
throw LogHelper.LogArgumentNullException(nameof(token));
}
if (validationParameters == null)
{
throw LogHelper.LogArgumentNullException(nameof(validationParameters));
}
var issuer = token.Issuer;
if (string.IsNullOrWhiteSpace(issuer))
{
issuer = ClaimsIdentity.DefaultIssuer;
}
var identity = validationParameters.CreateClaimsIdentity(token, issuer);
foreach (var claim in token.Claims)
{
if (claim.Properties.Count == 0)
{
identity.AddClaim(new Claim(claim.Type, claim.Value, claim.ValueType, issuer, issuer, identity));
}
else
{
var mappedClaim = new Claim(claim.Type, claim.Value, claim.ValueType, issuer, issuer, identity);
foreach (var kv in claim.Properties)
{
mappedClaim.Properties[kv.Key] = kv.Value;
}
identity.AddClaim(mappedClaim);
}
}
return(identity);
}
