/// <summary>
/// Adds a credential to the Windows password vault
/// </summary>
/// <param name="credential">Credential to add</param>
public void AddCredential(PasswordVaultCredential credential)
{
if (credential == null)
{
throw new ArgumentNullException(nameof(credential));
}
this.Vault.Add(new PasswordCredential()
{
Resource = CompleteResourceName(credential.ResourceName),
UserName = credential.UserName,
Password = credential.Password.GetString()
});
}
public async Task <bool> AuthenticateAsync()
{
string message;
MobileServiceUser user;
PasswordVaultCredential credential = null;
while (credential == null)
{
credential = _passwordVault.GetCredentialByResource(MobileServiceAuthenticationProvider.MicrosoftAccount.ToString());
if (credential != null)
{
// Create a user from the stored credentials.
user = new MobileServiceUser(credential.UserName);
user.MobileServiceAuthenticationToken = credential.Password;
// Set the user from the stored credentials.
_clientManager.MobileService.CurrentUser = user;
try
{
// Calling /.auth/refresh will update the tokens in the token store
// and will also return a new mobile authentication token.
JObject refreshJson = (JObject)await _clientManager.MobileService.InvokeApiAsync(
"/.auth/refresh",
HttpMethod.Get,
null);
string newToken = refreshJson["authenticationToken"].Value <string>();
_clientManager.MobileService.CurrentUser.MobileServiceAuthenticationToken
= newToken;
// get information about me
var meJson = await _clientManager.MobileService.InvokeApiAsync("/.auth/me", HttpMethod.Get, null);
var entry = meJson.ToObject <TokenEntry[]>();
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
// failed means we have to login again
}
_passwordVault.Add(MobileServiceAuthenticationProvider.MicrosoftAccount.ToString(),
user.UserId, user.MobileServiceAuthenticationToken);
try
{
// Try to return an item now to determine if the cached credential has expired.
await _clientManager.MobileService.GetTable <DrinkLogItem>().Take(1).ToListAsync();
}
catch (MobileServiceInvalidOperationException ex)
{
if (ex.Response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
{
// Remove the credential with the expired token.
_passwordVault.RemoveResource(MobileServiceAuthenticationProvider.MicrosoftAccount.ToString());
credential = null;
continue;
}
}
}
else
{
try
{
// Login with the identity provider.
user = await _clientManager.MobileService.LoginAsync(MobileServiceAuthenticationProvider.MicrosoftAccount);
// get information about me
var meJson = await _clientManager.MobileService.InvokeApiAsync("/.auth/me", HttpMethod.Get, null);
// Create and store the user credentials.
_passwordVault.Add(MobileServiceAuthenticationProvider.MicrosoftAccount.ToString(),
user.UserId, user.MobileServiceAuthenticationToken);
}
catch (MobileServiceInvalidOperationException)
{
message = "You must log in. Login Required";
return(false);
}
}
}
return(true);
}
