public SocialMediaUser GetUserDetails()
{
SocialMediaUser smu = new SocialMediaUser();
smu.Email = Preferences.Get("Email", "");
smu.Name = Preferences.Get("Name", "");
return(smu);
}
async void OnAuthCompleted(object sender, AuthenticatorCompletedEventArgs e)
{
var authenticator = sender as OAuth2Authenticator;
if (authenticator != null)
{
authenticator.Completed -= OnAuthCompleted;
authenticator.Error -= OnAuthError;
}
if (e.IsAuthenticated)
{
if (authenticator.AuthorizeUrl.Host == "www.facebook.com")
{
FacebookEmail facebookEmail = null;
var httpClient = new HttpClient();
var json = await httpClient.GetStringAsync($"https://graph.facebook.com/me?fields=id,name,first_name,last_name,email,picture.type(large)&access_token=" + e.Account.Properties["access_token"]);
facebookEmail = JsonConvert.DeserializeObject <FacebookEmail>(json);
//await store.SaveAsync(account = e.Account, Constants.AppName);
try
{
await SecureStorageAccountStore.SaveAsync(e.Account, Constants.AppName);
}
catch { }
Application.Current.Properties.Remove("Id");
Application.Current.Properties.Remove("FirstName");
Application.Current.Properties.Remove("LastName");
Application.Current.Properties.Remove("DisplayName");
Application.Current.Properties.Remove("EmailAddress");
Application.Current.Properties.Remove("ProfilePicture");
Application.Current.Properties.Add("Id", facebookEmail.Id);
Application.Current.Properties.Add("FirstName", facebookEmail.First_Name);
Application.Current.Properties.Add("LastName", facebookEmail.Last_Name);
Application.Current.Properties.Add("DisplayName", facebookEmail.Name);
Application.Current.Properties.Add("EmailAddress", facebookEmail.Email);
Application.Current.Properties.Add("ProfilePicture", facebookEmail.Picture.Data.Url);
//await Navigation.PushAsync(new ProfilePage());
// await NavigationService.NavigateTo(typeof(BikeDetailViewModel), string.Empty, string.Empty, true);
await NavigationService.NavigateToAsync <BikeDetailViewModel>();
}
else
{
SocialMediaUser user = null;
// If the user is authenticated, request their basic user data from Google
// UserInfoUrl = https://www.googleapis.com/oauth2/v2/userinfo
var request = new OAuth2Request("GET", new Uri(Constants.GoogleUserInfoUrl), null, e.Account);
var response = await request.GetResponseAsync();
if (response != null)
{
// Deserialize the data and store it in the account store
// The users email address will be used to identify data in SimpleDB
string userJson = await response.GetResponseTextAsync();
user = JsonConvert.DeserializeObject <SocialMediaUser>(userJson);
}
/*if (account != null)
* {
* store.Delete(account, Constants.AppName);
* }
* await store.SaveAsync(account = e.Account, Constants.AppName); */
try
{
await SecureStorageAccountStore.SaveAsync(e.Account, Constants.AppName);
}
catch { }
Application.Current.Properties.Remove("Id");
Application.Current.Properties.Remove("FirstName");
Application.Current.Properties.Remove("LastName");
Application.Current.Properties.Remove("DisplayName");
Application.Current.Properties.Remove("EmailAddress");
Application.Current.Properties.Remove("ProfilePicture");
Application.Current.Properties.Add("Id", user.Id);
Application.Current.Properties.Add("FirstName", user.GivenName);
Application.Current.Properties.Add("LastName", user.FamilyName);
Application.Current.Properties.Add("DisplayName", user.Name);
Application.Current.Properties.Add("EmailAddress", user.Email);
Application.Current.Properties.Add("ProfilePicture", user.Picture);
//await Navigation.PushAsync(new ProfilePage());
await NavigationService.NavigateToAsync <BikeDetailViewModel>();
// await NavigationService.NavigateTo(typeof(BikeDetailViewModel), string.Empty, string.Empty, true);
}
}
}
private async Task LoginFacebookAsync()
{
try
{
//check if logged in
if (_facebookClient.IsLoggedIn)
{
//TODO: Give appropriate handler
_facebookClient.Logout();
}
EventHandler <FBEventArgs <string> > userDataDelegate = null;
userDataDelegate = async(object sender, FBEventArgs <string> e) =>
{
if (e == null)
{
return;
}
string url = string.Empty;
switch (e.Status)
{
case FacebookActionStatus.Completed:
//Handles the FBEvent handler and deserialize it. This is a custom FB Event Handler, hence you can get e.Data
var fbUser = await Task.Run(() => JsonConvert.DeserializeObject <FacebookProfile>(e.Data));
//A check on null picture
if (fbUser.Picture.Data.Url != null)
{
url = fbUser.Picture.Data.Url;
}
//Assign the deserialize values into a generic socialMediaUser model
var socialMediaProfile = new SocialMediaUser
{
Name = fbUser.FirstName,
Email = fbUser.Email,
PictureURL = url
};
//Login is completed
//Send the data to the "Select League" page
await App.Current.MainPage.Navigation.PushModalAsync(new SelectLeagues());
break;
case FacebookActionStatus.Canceled:
//Redirect back to login
await App.Current.MainPage.Navigation.PushModalAsync(new LoginPage());
break;
}
//_facebookClient.OnUserData -= userDataDelegate;
};
_facebookClient.OnUserData += userDataDelegate;
string[] fbRequestFields = { "email", "first_name", "last_name", "picture" };
string[] fbPermisions = { "email" };
await _facebookClient.RequestUserDataAsync(fbRequestFields, fbPermisions);
}
catch (Exception e)
{
//TODO: A proper dialog command
//https://github.com/aritchie/userdialogs/blob/master/src/Samples/Samples/ViewModels/StandardViewModel.cs
}
}
public void SaveUserDetails(SocialMediaUser socialMediaUser)
{
Preferences.Set("Email", socialMediaUser.Email);
Preferences.Set("Name", socialMediaUser.Name);
}
private async Task LoginGoogleAsync()
{
try
{
//Check if the user is already logged in
//potentially will remove this in the future otherwise create appropriate handler
if (!string.IsNullOrEmpty((googleClient.AccessToken)))
{
googleClient.Logout();
}
//Create the event/delegate of Google user type and initialize it
EventHandler <GoogleClientResultEventArgs <GoogleUser> > userLoginDelegate = null;
//Lets do the login
userLoginDelegate = async(object sender, GoogleClientResultEventArgs <GoogleUser> e) =>
{
switch (e.Status)
{
case GoogleActionStatus.Completed:
var googleResultString = JsonConvert.SerializeObject(e.Data);
//A check with the user profile image is empty
string url = string.Empty;
if (e.Data.Picture.AbsoluteUri != null)
{
url = e.Data.Picture.AbsoluteUri;
}
//map the e.data into our SocialMediaUser model
var socialMediaUser = new SocialMediaUser
{
Email = e.Data.Email,
Name = e.Data.Name,
PictureURL = url
};
//Once the model is set, send it to the selectLeague page
await App.Current.MainPage.Navigation.PushModalAsync(new SelectLeagues());
break;
case GoogleActionStatus.Canceled:
/*For now we will display an alert here but we will move this elsewhere
* so that we can just return a msg into that VM and display it properly
* and finally navigate to login page
*/
await App.Current.MainPage.DisplayAlert("Google Login", "Google Login Cancelled by user", "OK");
await App.Current.MainPage.Navigation.PushModalAsync(new LoginPage());
break;
case GoogleActionStatus.Error:
/*For now we will display an alert here but we will move this elsewhere
* so that we can just return a msg into that VM and display it properly
* and finally navigate to login page
*/
await App.Current.MainPage.DisplayAlert("Google Login", "Error from Google signing in", "OK");
await App.Current.MainPage.Navigation.PushModalAsync(new LoginPage());
break;
}
googleClient.OnLogin -= userLoginDelegate;
};
googleClient.OnLogin += userLoginDelegate;
await googleClient.LoginAsync();
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
//await App.Current.MainPage.DisplayAlert("Google Login", e.Message, "OK");
}
}