async partial void SignUpButton_TouchUpInside(UIButton sender)
{
string userPassword = userPasswordTextField.Text;
string userRepeatPassword = userRepeatPasswordTextField.Text;
// Check for empty fields
if (string.IsNullOrWhiteSpace(userPassword) || string.IsNullOrWhiteSpace(userRepeatPassword))
{
// Display an alert message
DisplayAlertMessage("All fields are required to fill in");
return;
}
// If password do not meet requirements
else if (!Validation.ValidationResult(userPassword, "password"))
{
DisplayAlertMessage(Validation.Message);
return;
}
// Check if passwords match
if (!userPassword.Equals(userRepeatPassword))
{
// Display an alert message
DisplayAlertMessage("Passwords do not match");
return;
}
// Show the loading overlay on the UI
LoadingOverlay.ShowOverlay(View);
// Add user
// Create instance of table Users
user = new UsersModel()
{
FirstName = RegisterUserSharedData.UserFirstName,
LastName = RegisterUserSharedData.UserLastName,
Email = RegisterUserSharedData.UserEmail.ToLower(),
Password = userPassword,
LoginProvider = "Email"
};
// Call REST service to send Json data
RestService rs = new RestService();
// Get Json data from server in JsonResponseModel format
Task <UsersModel> jsonResponeTask = rs.UserLoginAndRegisterJson(user, "register");
// If there was an error in PostJsonDataAsync class, display message
if (jsonResponeTask == null)
{
DisplayAlertMessage(rs.Message);
return;
}
// Create instance of JsonResponseModel and pass jsonResponeTask there
var jsonResponse = await jsonResponeTask;
// Get user status (Success/Error)
string statusUser = jsonResponse.Status;
string alertMessage = jsonResponse.Message;
// Excecutes the given code in the background
var alert = UIAlertController.Create(title: "", message: alertMessage, preferredStyle: UIAlertControllerStyle.Alert);
var okAction = UIAlertAction.Create("Ok", UIAlertActionStyle.Cancel, (obj) =>
{
// If user has been added successfully, dismiss view controller
if (statusUser == "Success")
{
var loginController = this.Storyboard.InstantiateViewController("LoginUserViewController") as LoginUserViewController;
if (loginController != null)
{
this.PresentViewController(loginController, true, null);
}
}
else if (statusUser == "Error" && alertMessage == "Email already exists")
{
//var registerController = this.Storyboard.InstantiateViewController("EnterEmailRegisterUser") as RegisterUserViewController;
//if (registerController != null)
this.NavigationController.PopViewController(true);
}
});
alert.AddAction(okAction);
this.PresentViewController(alert, true, null);
// Remove overlay
LoadingOverlay.RemoveOverlay();
}
// Login user and register using Facebook
public async Task <UsersModel> UserLoginAndRegisterJson(UsersModel user, string action)
{
try
{
if (!CrossConnectivity.Current.IsConnected || !await CrossConnectivity.Current.IsReachable(serverUri.Host.ToString(), 3000))
{
Message = "There was a network problem. Please, try again later";
return(new UsersModel()
{
Status = "Error", Message = this.Message
});
}
var user_tmp = new UsersModel();
// Disable sending Facebook's avatar to server
if (user.LoginProvider == "Facebook")
{
user_tmp.Id = user.Id;
user_tmp.FirstName = user.FirstName;
user_tmp.LastName = user.LastName;
user_tmp.Email = user.Email.ToLower();
user_tmp.Password = user.Password;
user_tmp.Avatar = null;
user_tmp.LoginProvider = user.LoginProvider;
user_tmp.CreatedAt = user.CreatedAt;
}
else
{
user_tmp = user;
}
// Serialize UserModel class into a JSON String
var jsonUserSerialize = await Task.Run(() => JsonConvert.SerializeObject(user_tmp));
// Wrap JSON inside a StringContent which then can be used by the HttpClient class
var httpContent = new StringContent(jsonUserSerialize, Encoding.UTF8, "application/json");
Console.WriteLine("INPUT content:" + jsonUserSerialize);
using (httpClient = new HttpClient())
{
if (action == "login")
{
phpFileUri = new Uri(serverUri, "userlogin.php");
}
else if (action == "register")
{
phpFileUri = new Uri(serverUri, "userregister.php");
}
else if (action == "update")
{
phpFileUri = new Uri(serverUri, "userupdate.php");
}
// Send JSON using HTTP request and receiving HTTP response
HttpResponseMessage response = await httpClient.PostAsync(phpFileUri, httpContent);
if (response.IsSuccessStatusCode)
{
// If the response contains content, read it
if (response.Content != null)
{
var responseContent = await response.Content.ReadAsStringAsync();
Console.WriteLine("OUTPUT content:" + responseContent);
// Deserialize JSON
var jsonUserDeserialize = await Task.Run(() => JsonConvert.DeserializeObject <UsersModel>(responseContent));
return(jsonUserDeserialize);
}
else
{
Message = "HTTP Content is empty";
return(new UsersModel()
{
Status = "Error", Message = this.Message
});
}
}
else
{
Message = "HTTP Response Error\n" + new HttpResponseMessage(HttpStatusCode.NotModified);
return(new UsersModel()
{
Status = "Error", Message = this.Message
});
}
}
}
catch (Exception ex)
{
Message = ex.Message;
return(new UsersModel()
{
Status = "Error", Message = this.Message
});
}
}
// Facebook Authentification
void FacebookAuthentication()
{
flag = false;
// If was send true to Profile.EnableUpdatesOnAccessTokenChange method
// this notification will be called after the user is logged in and
// after the AccessToken is gotten
Profile.Notifications.ObserveDidChange((sender, e) =>
{
if (e.NewProfile == null)
{
return;
}
var accessToken = AccessToken.CurrentAccessToken.TokenString;
var request = new GraphRequest("/" + e.NewProfile.UserID, new NSDictionary("fields", "email,first_name,last_name,picture.type(large)"), accessToken, null, "GET");
request.Start((connection, result, error) =>
{
// Show the loading overlay on the UI
LoadingOverlay.ShowOverlay(View);
var userInfo = result as NSDictionary;
// Get Facebook avatar image from url
var avatarUrl = new NSUrl(userInfo["picture"].ValueForKey(new NSString("data")).ValueForKey(new NSString("url")).ToString());
var data = NSData.FromUrl(avatarUrl);
facebookImageData = data;
// string facebookAvatar = data.GetBase64EncodedString(NSDataBase64EncodingOptions.None);
// facebookAvatar = new NSString(eefacebookAvatar, NSStringEncoding.UTF8); //Encoding.ASCII.GetString(ToByteArray(data));
// Add Facebook user to database
var user = new UsersModel()
{
FirstName = userInfo["first_name"].ToString(),
LastName = userInfo["last_name"].ToString(),
Email = userInfo["email"].ToString().ToLower(),
LoginProvider = "Facebook"
};
// Call REST service to send Json data
RestService rs = new RestService();
// Get Json data from server in JsonResponseModel format
Task <UsersModel> jsonResponeTask = rs.UserLoginAndRegisterJson(user, "register");
// If there was an error in PostJsonDataAsync class, display message
if (jsonResponeTask == null)
{
LoadingOverlay.RemoveOverlay();
return;
}
// Get user id from Json after login or display an error
GetUserIdFromJson(jsonResponeTask, user);
if (error != null)
{
LoadingOverlay.RemoveOverlay();
Console.WriteLine("Error in request. Start Facebook login");
return;
}
});
});
// Set the Read and Publish permissions you want to get
loginView = new LoginButton(fbAuthButton.Frame)
{
LoginBehavior = LoginBehavior.Native,
ReadPermissions = readPermissions.ToArray()
};
// Handle actions once the user is logged in
loginView.Completed += LoginView_Completed;
// Handle actions once the user is logged out
loginView.LoggedOut += (sender, e) =>
{
// Set logout User Defaults
var plist = NSUserDefaults.StandardUserDefaults;
plist.SetBool(false, "isUserLoggedIn"); // set flag that user logged out
plist.SetString("", "userId");
plist.Synchronize();
};
// Use your System Account of Settings
//loginButton.LoginBehavior = LoginBehavior.SystemAccount;
// Add views to main view
View.AddSubview(loginView);
}
