partial void LoginButton_TouchUpInside(UIButton sender)
{
View.EndEditing(true);
String userId = UserIDTextView.Text.Trim();
String password = PasswordTextView.Text;
String dataToken = DataTokenTextView.Text.Trim();
Boolean dataReady = userId.Length * password.Length * dataToken.Length != 0;
if (!dataReady)
{
new UIAlertView("Invalid Data", "Please make sure all blanks are filled before continue", null, "OK", null).Show();
return;
}
if (!CrossConnectivity.Current.ConnectionTypes.Contains(ConnectionType.Cellular) &&
!CrossConnectivity.Current.ConnectionTypes.Contains(ConnectionType.WiFi))
{
new UIAlertView("Connection Unavailable", "Please enable cellular data or WiFi and try again.", null, "OK", null).Show();
return;
}
String baseUrl;
String dataSet;
try
{
_resolver.ResolveFromToken(dataToken, out baseUrl, out dataSet);
}
catch (Exception e)
{
new UIAlertView("Invalid DataToken", "DataToken not recognized", null, "OK", null).Show();
return;
}
System.Net.HttpWebResponse resp;
try
{
var req = System.Net.WebRequest.CreateHttp(baseUrl + "api/v1/datasets/" + dataSet + "/");
req.Method = "GET";
req.AllowAutoRedirect = false;
String credential = userId + ":" + password;
req.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes(credential)));
resp = (System.Net.HttpWebResponse)req.GetResponse();
}
catch (System.Net.WebException e)
{
resp = (System.Net.HttpWebResponse)e.Response;
if (resp == null)
{
new UIAlertView("Server Unavailable", "Cannot reach server \"" + baseUrl + "\". " + e.Message, null, "OK", null).Show();
}
else if (resp.StatusCode == System.Net.HttpStatusCode.Unauthorized)
{
new UIAlertView("Bad Credentials", "Your user ID or password is not correct.", null, "OK", null).Show();
}
else if (resp.StatusCode == System.Net.HttpStatusCode.Forbidden)
{
new UIAlertView("Permission Denied", "You may not have the permission to connect to the given dataset", null, "OK", null).Show();
}
else
{
new UIAlertView("Server Not Recognized", "Server \"" + baseUrl + "\" is not recognized. " + e.Message, null, "OK", null).Show();
}
return;
}
if (resp.StatusCode == System.Net.HttpStatusCode.OK)
{
if (resp.GetResponseStream().CanRead)
{
byte[] buffer = new byte[10001];
resp.GetResponseStream().Read(buffer, 0, 10000);
String responseStr = System.Text.Encoding.UTF8.GetString(buffer, 0, buffer.Length);
if (responseStr.Contains("auth-required"))
{
new UIAlertView("Wrong Credentials", "Your user ID or password is not correct", null, "OK", null).Show();
return;
}
else if (responseStr.Contains("permission-denied"))
{
new UIAlertView("Permission Denied", "You may not have the permission to connect to the given dataset", null, "OK", null).Show();
return;
}
else if (responseStr.Contains("dataset"))
{
AccountStorage.Set(userId, password, baseUrl, dataSet, dataToken);
PDashAPI.Controller.RefreshDataset();
if (OnLoginSuccess != null)
{
OnLoginSuccess(sender, new EventArgs());
}
}
else
{
new UIAlertView("Server Not Recognized", "Server \"" + baseUrl + "\" is not recognized.", null, "OK", null).Show();
return;
}
}
else
{
new UIAlertView("Error", "Comunication with the server failed. Status code: " + resp.StatusCode + ", " + resp.StatusDescription, null, "OK", null).Show();
return;
}
}
else
{
new UIAlertView("Invalid Data", "Server is not recognized. Please check the DataToken", null, "OK", null).Show();
return;
}
}
public async Task <int> CheckCredentials(string datatoken, string userid, string password)
{
//Check username and password
System.Diagnostics.Debug.WriteLine("We are inside the outer task");
ProgressDialog pd = new ProgressDialog(Activity);
pd.SetMessage("Checking username and password");
pd.SetCancelable(false);
pd.Show();
AlertDialog.Builder builder = new AlertDialog.Builder((Activity));
await Task.Run(() =>
{
Debug.WriteLine("We are checking username");
HttpWebResponse resp;
try
{
DataSetLocationResolver dslr = new DataSetLocationResolver();
dslr.ResolveFromToken(datatoken, out baseurl, out dataset);
System.Diagnostics.Debug.WriteLine("Base url :" + baseurl);
AccountStorage.SetContext(Activity);
AccountStorage.Set(userid, password, baseurl, dataset);
var req =
WebRequest.CreateHttp(AccountStorage.BaseUrl + "api/v1/datasets/" +
AccountStorage.DataSet + "/");
req.Method = "GET";
req.AllowAutoRedirect = false;
string credential = userid + ":" + password;
req.Headers.Add("Authorization",
"Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes(credential)));
// req.Get
resp = (HttpWebResponse)req.GetResponse();
if (resp.StatusCode == HttpStatusCode.OK)
{
if (resp.GetResponseStream().CanRead)
{
Stream data = resp.GetResponseStream();
var reader = new StreamReader(data);
string responseStr = reader.ReadToEnd();
Debug.WriteLine(responseStr);
if (responseStr.Contains("auth-required"))
{
Debug.WriteLine("Wrong credentials 2");
AccountStorage.ClearStorage();
Activity.RunOnUiThread(() =>
{
if (pd.IsShowing)
{
pd.Dismiss();
}
builder.SetTitle("Wrong Credentials")
.SetMessage("Please check your username and password and try again.")
.SetNeutralButton("Okay", (sender2, args2) => { builder.Dispose(); })
.SetCancelable(false);
AlertDialog alert = builder.Create();
alert.Show();
Debug.WriteLine("We should have shown the dialog now");
});
}
else if (responseStr.Contains("permission-denied"))
{
Debug.WriteLine("permission issue");
AccountStorage.ClearStorage();
Activity.RunOnUiThread(() =>
{
if (pd.IsShowing)
{
pd.Dismiss();
}
builder.SetTitle("Access Denied")
.SetMessage("You donot have access to this dataset")
.SetNeutralButton("Okay", (sender2, args2) => { builder.Dispose(); })
.SetCancelable(false);
AlertDialog alert = builder.Create();
alert.Show();
});
}
else if (responseStr.Contains("dataset"))
{
Debug.WriteLine("Username and password was correct");
Activity.RunOnUiThread(() =>
{
pd.SetMessage("Getting Account Info");
pd.SetCancelable(false);
if (!pd.IsShowing)
{
pd.Show();
}
});
Task.Run(() =>
{
//LOAD METHOD TO GET ACCOUNT INFO
Debug.WriteLine("We are going to store the values");
Debug.WriteLine("We have stored the values");
Debug.WriteLine(AccountStorage.BaseUrl);
Debug.WriteLine(AccountStorage.DataSet);
Debug.WriteLine(AccountStorage.Password);
Debug.WriteLine(AccountStorage.UserId);
// Switch to next screen
//HIDE PROGRESS DIALOG
Activity.RunOnUiThread(() =>
{
if (pd.IsShowing)
{
pd.Dismiss();
}
Toast.MakeText(Activity, "Logged in", ToastLength.Short).Show();
((MainActivity)Activity).FragmentManager.PopBackStack();
((MainActivity)Activity).SetDrawerState(true);
((MainActivity)Activity).SwitchToFragment(
MainActivity.FragmentTypes.Home);
});
});
}
}
}
}
catch (WebException e)
{
Debug.WriteLine("We have a problem");
Activity.RunOnUiThread(() =>
{
if (pd.IsShowing)
{
pd.Dismiss();
}
});
using (WebResponse response = e.Response)
{
HttpWebResponse httpResponse = (HttpWebResponse)response;
Console.WriteLine("Error code: {0}", httpResponse.StatusCode);
if (httpResponse.StatusCode == HttpStatusCode.Unauthorized)
{
Debug.WriteLine("Wrong credentials");
AccountStorage.ClearStorage();
Activity.RunOnUiThread(() =>
{
try
{
builder.SetTitle("Unauthorized")
.SetMessage(
"Please check your username and password and data token and try again.")
.SetNeutralButton("Okay", (sender2, args2) => { builder.Dispose(); })
.SetCancelable(false);
AlertDialog alert = builder.Create();
alert.Show();
}
catch (Exception e2)
{
Debug.WriteLine("We have hit an error while showing the dialog :" + e2.Message);
AccountStorage.ClearStorage();
}
});
}
}
}
catch (Exception e)
{
// Catching any generic exception
Debug.WriteLine("We have hit a generic exception :" + e.Message);
AccountStorage.ClearStorage();
Activity.RunOnUiThread(() =>
{
AlertDialog.Builder builder2 = new AlertDialog.Builder(Activity);
builder2.SetTitle("Error occured")
.SetMessage(e.Message +
". Please report this error to the developers. We are sorry for the inconvenience.")
.SetNeutralButton("Okay", (sender2, args2) => { builder2.Dispose(); })
.SetCancelable(false);
AlertDialog alert2 = builder2.Create();
alert2.Show();
});
}
return(true);
});
// pd.Dismiss();
System.Diagnostics.Debug.WriteLine("We are done with the outer task");
return(0);
}