public async Task<AuthenticationReport> Login(string username, string password)
{
var report = new AuthenticationReport();
try
{
var message = await ExecuteLoginRequest(username, password);
var content = await message.Content.ReadAsStringAsync();
XmlDocument doc = new XmlDocument();
doc.LoadXml(content);
var invalidCredentials = doc.DocumentElement.GetElementsByTagName("InvalidCredentialsFault").Count > 0;
if (invalidCredentials)
{
report.Error = WebError.InvalidCredentials;
return report;
}
var userData = GetUserDataFromXml(doc);
report = new AuthenticationReport(true) { UserData = userData };
}
catch (Exception exception)
{
var webErrorStatus = Windows.Web.WebError.GetStatus(exception.HResult);
if (webErrorStatus == WebErrorStatus.HostNameNotResolved)
report.ErrorMessage = "Please check your internet connection and try again";
else report.ErrorMessage = "Unknown error. Please try again!";
return report;
}
return report;
}
private async Task HandleAuthenticationResult(AuthenticationReport authenticationReport)
{
if (authenticationReport.Successful)
{
var userData = authenticationReport.UserData;
_appSettings.Set(StorageKey.SessionId, userData.SessionId);
_appSettings.Set(StorageKey.UserDisplayName, userData.DisplayName);
_appSettings.Set(StorageKey.City, userData.City);
_appSettings.Set(StorageKey.UserStatus, userData.Status);
_appSettings.Set(StorageKey.Country, userData.Country);
_appSettings.Set(StorageKey.SessionExpiration, userData.Expiration);
if (RememberMe)
{
_appSettings.Set(StorageKey.Username, Username);
_appSettings.Set(StorageKey.Password, Password);
}
NavigationService.Navigate(typeof(HomeView));
_statisticsService.RegisterEvent(EventCategory.UserEvent, "logged in", userData.DisplayName);
}
else
{
switch (authenticationReport.Error)
{
case WebError.InvalidCredentials:
await
_dialogService.ShowMessageDialog(
"The credentials are invalid. Please check your username and password.");
break;
case WebError.Unknown:
await _dialogService.ShowMessageDialog(authenticationReport.ErrorMessage);
break;
}
}
}