public async Task<AccessTokenIntrospectionResult> IntrospectTokenAsync(string accessToken,
bool allowOfflineValidation = false)
{
var accessTokenType = AccessTokenAnalyzer.GetTokenType(accessToken);
var discoveryResponse = await _discoveryDocumentProvider.GetDiscoveryDocumentAsync();
if (accessTokenType == AccessTokenType.Jwt && allowOfflineValidation)
{
var claims = JwtSecurityTokenVerifier.Verify(accessToken,
_identityServer4Info.AllowedScope, discoveryResponse);
return new AccessTokenIntrospectionResult(accessTokenType, claims, true);
}
var introspectionResult = await
IntrospectTokenOnlineAsync(accessToken, accessTokenType, discoveryResponse);
return introspectionResult;
}
private string TryToOptimize(string accessToken)
{
var accessTokenType = AccessTokenAnalyzer.GetTokenType(accessToken);
if (accessTokenType == AccessTokenType.Reference)
{
return(accessToken);
}
using (var sha256 = SHA256.Create())
{
byte[] hashValue = sha256.ComputeHash(Encoding.UTF8.GetBytes(accessToken));
var sb = new StringBuilder();
// ReSharper disable once ForCanBeConvertedToForeach
for (int i = 0; i < hashValue.Length; i++)
{
sb.Append(hashValue[i].ToString("x2"));
}
return(sb.ToString());
}
}