/// <summary>
/// Caches an SSO Token to disk.
/// </summary>
/// <param name="token">SSO Token to cache</param>
public bool TrySave(SsoToken token)
{
try
{
if (string.IsNullOrWhiteSpace(_cachePath))
{
return(false);
}
if (token.StartUrl != StartUrl)
{
throw new ArgumentException("StartUrl mismatch between cache and token", nameof(token));
}
var json = SsoTokenUtils.ToJson(token);
Directory.CreateDirectory(Path.GetDirectoryName(_cachePath));
File.WriteAllText(_cachePath, json);
return(true);
}
#pragma warning disable CA1031 // Do not catch general exception types
catch (Exception e)
#pragma warning restore CA1031 // Do not catch general exception types
{
_logger.Error(e, "Warning: Unable to save SSO Token Cache. Future retrieval will have to produce a token.");
return(false);
}
}
/// <summary>
/// Loads an SSO Token from cache
/// </summary>
/// <remarks>
/// This method is private. The spec prohibits storing Tokens in memory. They are to be accessed to from disk
/// when necessary.
/// </remarks>
/// <returns>Loaded SSO Token. Returns null if no cache exists, or is otherwise corrupt.</returns>
private SsoToken Load()
{
try
{
if (string.IsNullOrWhiteSpace(_cachePath) || !File.Exists(_cachePath))
{
_logger.InfoFormat("No SSO Token cache to load from");
return(null);
}
var json = File.ReadAllText(_cachePath);
var ssoToken = SsoTokenUtils.FromJson(json);
_logger.InfoFormat("SSO Token loaded from cache");
return(ssoToken);
}
#pragma warning disable CA1031 // Do not catch general exception types
catch (Exception e)
#pragma warning restore CA1031 // Do not catch general exception types
{
_logger.Error(e, "Unable to load token cache for start url: {0}", StartUrl);
return(null);
}
}
