public void StartLoginFlow(LoginOptions loginOptions)
{
Uri loginUri = new Uri(OAuth2.ComputeAuthorizationUrl(loginOptions));
Uri callbackUri = new Uri(loginOptions.CallbackUrl);
OAuth2.ClearCookies(loginOptions);
WebAuthenticationBroker.AuthenticateAndContinue(loginUri, callbackUri, null, WebAuthenticationOptions.None);
}
private async void DoAuthFlow(LoginOptions loginOptions)
{
Uri loginUri = new Uri(OAuth2.ComputeAuthorizationUrl(loginOptions));
Uri callbackUri = new Uri(loginOptions.CallbackUrl);
OAuth2.ClearCookies(loginOptions);
WebAuthenticationResult webAuthenticationResult = await WebAuthenticationBroker.AuthenticateAsync(WebAuthenticationOptions.None, loginUri, callbackUri);
if (webAuthenticationResult.ResponseStatus == WebAuthenticationStatus.Success)
{
Uri responseUri = new Uri(webAuthenticationResult.ResponseData.ToString());
AuthResponse authResponse = OAuth2.ParseFragment(responseUri.Fragment.Substring(1));
PlatformAdapter.Resolve <IAuthHelper>().EndLoginFlow(loginOptions, authResponse);
}
}
/// <summary>
/// Logs currently authenticated user out by deleting locally persisted credentials and invoking the server to revoke
/// the user auth tokens
/// </summary>
/// <returns>true if server logout was successful</returns>
public async Task <bool> Logout()
{
Account account = AccountManager.GetAccount();
if (account != null)
{
LoginOptions options = account.GetLoginOptions();
AccountManager.DeleteAccount();
OAuth2.ClearCookies(options);
bool loggedOut = await OAuth2.RevokeAuthToken(options, account.RefreshToken);
if (loggedOut)
{
GetRestClient();
}
return(loggedOut);
}
GetRestClient();
return(await Task.Factory.StartNew(() => true));
}
private async void DoAuthFlow(LoginOptions loginOptions)
{
loginOptions.DisplayType = LoginOptions.DefaultStoreDisplayType;
var loginUri = new Uri(OAuth2.ComputeAuthorizationUrl(loginOptions));
var callbackUri = new Uri(loginOptions.CallbackUrl);
OAuth2.ClearCookies(loginOptions);
WebAuthenticationResult webAuthenticationResult;
try
{
PlatformAdapter.SendToCustomLogger(
"AccountPage.DoAuthFlow - calling WebAuthenticationBroker.AuthenticateAsync()", LoggingLevel.Verbose);
if (loginOptions.UseTwoParamAuthAsyncMethod)
{
webAuthenticationResult =
await
WebAuthenticationBroker.AuthenticateAsync(loginOptions.BrokerOptions, loginUri);
}
else
{
webAuthenticationResult =
await
WebAuthenticationBroker.AuthenticateAsync(loginOptions.BrokerOptions, loginUri, callbackUri);
}
}
// If a bad URI was passed in the user is shown an error message by the WebAuthenticationBroken, when user
// taps back arrow we are then thrown a FileNotFoundException, but since user already saw error message we
// should just swallow that exception
catch (FileNotFoundException)
{
SetupAccountPage();
return;
}
catch (Exception ex)
{
PlatformAdapter.SendToCustomLogger("AccountPage.StartLoginFlow - Exception occured", LoggingLevel.Critical);
PlatformAdapter.SendToCustomLogger(ex, LoggingLevel.Critical);
DisplayErrorDialog(LocalizedStrings.GetString("generic_error"));
SetupAccountPage();
return;
}
if (webAuthenticationResult.ResponseStatus == WebAuthenticationStatus.Success)
{
var responseUri = new Uri(webAuthenticationResult.ResponseData);
if (!String.IsNullOrWhiteSpace(responseUri.Query) &&
responseUri.Query.IndexOf("error", StringComparison.CurrentCultureIgnoreCase) >= 0)
{
DisplayErrorDialog(LocalizedStrings.GetString("generic_authentication_error"));
SetupAccountPage();
}
else
{
try
{
AuthResponse authResponse = OAuth2.ParseFragment(responseUri.Fragment.Substring(1));
PlatformAdapter.SendToCustomLogger("AccountPage.DoAuthFlow - calling EndLoginFlow()", LoggingLevel.Verbose);
await PlatformAdapter.Resolve <IAuthHelper>().EndLoginFlow(loginOptions, authResponse);
}
catch (Exception ex)
{
DisplayErrorDialog($"Login failed: { ex.Message }");
SetupAccountPage();
}
}
}
else if (webAuthenticationResult.ResponseStatus == WebAuthenticationStatus.UserCancel)
{
SetupAccountPage();
}
else
{
DisplayErrorDialog(LocalizedStrings.GetString("generic_error"));
SetupAccountPage();
}
}