public void Initialize()
{
var fileInfo = new FileInfo(OAUTHTOKEN_FILENAME);
if (fileInfo.Exists)
{
try
{
var decrypted = ProtectedData.Unprotect(File.ReadAllBytes(fileInfo.FullName), null, DataProtectionScope.CurrentUser);
ApplyToken(OAuthToken.FromJson(Encoding.UTF8.GetString(decrypted)));
} catch (Exception e)
{
_logger.LogError(e, "Error reading OAuthToken from File");
}
}
Task.Run(() => RefreshTokenIfNeeded());
}
void AuthenticateWithBrowser()
{
var userAuthProvider = new UserAuthentication(_connection);
_authProvider = userAuthProvider;
userAuthProvider.TokenChanged += userAuthProvider_TokenChanged;
OAuthToken authToken = userAuthProvider.GetToken();
string savedToken = authToken.ToJson();
// This can be restored into a UserAuthentication object later to reuse:
OAuthToken restoredToken = OAuthToken.FromJson(savedToken);
UserAuthentication restoredAuthProvider = new UserAuthentication(_connection, restoredToken);
// Now the user will not be prompted when we call GetToken
OAuthToken cachedToken = restoredAuthProvider.GetToken();
}
/// <summary>
/// Shows how to set up authentication to authenticate the user in an embedded browser form
/// and get an OAuth2 token by prompting the user for credentials.
/// </summary>
private static void AuthenticateWithBrowser()
{
// The UserAuthentication class will handle the OAuth2 desktop
// authentication flow using an embedded WebBrowser form,
// cache the returned token for later API usage, and handle token refreshes.
var userAuthProvider = new UserAuthentication(_connection);
_authProvider = userAuthProvider;
// optionally register an event handler to be notified if/when the auth
// token changes
userAuthProvider.TokenChanged += userAuthProvider_TokenChanged;
// Retrieve a token from the server
// Note: the RestApi class will call this as needed so it isn't required
// to call it before accessing the API. However, manually calling GetToken first
// is recommended so the app can more gracefully handle authentication errors
OAuthToken authToken = userAuthProvider.GetToken();
// OAuth2 tokens can and should be cached across application uses so users
// don't need to grant access every time they run the application.
// To do this, call OAuthToken.ToJSon to get a serialized version of
// the token that can be used later. Be sure to treat this string as a
// user password and store it securely!
// Note that this token will potentially be refreshed during API usage
// using the OAuth2 token refresh protocol. If that happens, your application
// should overwrite the previously saved token with the new token value.
// You can register for the TokenChanged event to be notified of any new/changed tokens
// or you can call UserAuthentication.GetToken().ToJson() after using the API
// to manually retrieve the most current token.
string savedToken = authToken.ToJson();
// This can be restored into a UserAuthentication object later to reuse:
OAuthToken restoredToken = OAuthToken.FromJson(savedToken);
UserAuthentication restoredAuthProvider = new UserAuthentication(_connection, restoredToken);
// Now the user will not be prompted when we call GetToken
OAuthToken cachedToken = restoredAuthProvider.GetToken();
}
