public async Task <Token> Parse(string token, string issuer, string audience, bool validateSignature)
{
using (Logger.BeginScope(nameof(Parse)))
{
try
{
Validator.ValidateFormat(token, Settings.MaxTokenSize);
var jws = ParseJws(token);
Validator.ValidateJoseHeader(jws);
var payloadClaims = Base64Url.DeserializeData(jws.Parts[1], "JWT payload");
var payload = new TokenPayload(payloadClaims);
Validator.ValidatePayload(payload, issuer, audience, Settings.ClockSkew);
if (validateSignature)
{
await Validator.ValidateSignature(jws);
}
return(new Token
{
Algorithm = jws.Algorithm,
Header = jws.Header,
Payload = payload
});
}
catch (Exception ex)
{
throw Logger.Exception($"Error parsing the Json Web Token: {ex.Message}");
}
}
}