private static void DoLogout()
{
if (Functions.IsOffline())
{
Functions.CurrentContext.StartActivity(typeof(LoginActivity));
Functions.CurrentContext.Finish(); // Rest of log in data cleared in constructor
return;
}
var data = new NameValueCollection();
data.Add("logout", string.Empty);
string response = WebFunctions.Request(data);
if (response == "Logged out successfully" || response == "Not logged in!")
{
Functions.CurrentContext.StartActivity(typeof(LoginActivity));
Functions.CurrentContext.Finish(); // Rest of log in data cleared in constructor
}
else
{
ResponseManager.ShowMessage("Error", response);
ResponseManager.DismissLoading();
}
}
private void FetchStudentData()
{
var data = new NameValueCollection();
data.Add("checkuser", string.Empty);
string rawReply = WebFunctions.Request(data);
if (!rawReply.Contains("Registered"))
{
StartActivity(typeof(LoginActivity));
Finish();
return;
}
string[] reply = Regex.Split(rawReply, "<br>").TrimArray();
Regex userMatch = new Regex(":.*");
string user = (from a in reply
where !string.IsNullOrWhiteSpace(userMatch.Match(a).Value)
select userMatch.Match(a).Value.Remove(0, 2)).First();
var listView = FindViewById <ListView> (Resource.Id.listView1);
var adapter = new ArrayAdapter <String> (this, Android.Resource.Layout.SimpleListItem1, reply);
RunOnUiThread(() => listView.Adapter = adapter);
ResponseManager.DismissLoading();
}
public static bool IsLoggedIn()
{
var data = new NameValueCollection();
data.Add("login", string.Empty);
if (WebFunctions.Request(data) == "Already logged in!")
{
return(true);
}
return(false);
}
private void DoRegister(object sender, EventArgs e)
{
if (Functions.IsOffline())
{
ResponseManager.ShowMessage("Error", "No internet connection!");
return;
}
if (_txtPassword.Text != _txtPassword2.Text)
{
ResponseManager.ShowMessage("Error", "Passwords do not match!");
return;
}
ResponseManager.ShowLoading("Creating account...");
var data = new NameValueCollection();
data.Add("register", string.Empty);
data.Add("email", _txtEmail.Text);
data.Add("password", Functions.GetSha256(_txtPassword.Text));
data.Add("firstname", _txtFirstName.Text);
data.Add("lastname", _txtLastName.Text);
data.Add("class", _txtClass.Text);
string reply = WebFunctions.Request(data);
ResponseManager.DismissLoading();
if (reply != "Account created!")
{
ResponseManager.ShowMessage("Error", reply);
WebFunctions.ClearCookies();
return;
}
RunOnUiThread(delegate {
var dialogFragment = new DialogFragment();
dialogFragment.InitializeOk(reply, "Success", delegate {
Intent resultData = new Intent();
resultData.PutExtra("email", _txtEmail.Text);
resultData.PutExtra("password", _txtPassword.Text);
SetResult(Result.Ok, resultData);
Finish();
});
dialogFragment.Show();
});
}
private void DoLogin(object sender, EventArgs e)
{
if (Functions.IsOffline())
{
ResponseManager.ShowMessage("Error", "No internet connection!");
return;
}
ResponseManager.ShowLoading("Logging in...");
var data = new NameValueCollection();
data.Add("login", string.Empty);
data.Add("email", _txtEmail.Text);
data.Add("password", Functions.GetSha256(_txtPassword.Text));
string reply = WebFunctions.Request(data);
if (reply != "Login success!")
{
ResponseManager.DismissLoading();
ResponseManager.ShowMessage("Error", reply);
WebFunctions.ClearCookies();
return;
}
data.Clear();
data.Add("getaccounttype", string.Empty);
reply = WebFunctions.Request(data);
if (reply != "student" && reply != "teacher")
{
ResponseManager.DismissLoading();
ResponseManager.ShowMessage("Error", "Unrecognized account type!");
WebFunctions.ClearCookies();
return;
}
Functions.SaveSetting("settings", "accountType", reply);
Functions.SaveSetting("settings", "loggedIn", "true");
StartActivity(typeof(MainActivity));
Finish();
}
public static void Sync()
{
Load();
if (_scannedCodes.Count == 0)
{
ResponseManager.ShowMessage("Note", "No grades to sync!");
return;
}
StringBuilder stringBuilder = new StringBuilder();
foreach (var code in _scannedCodes)
{
stringBuilder.AppendFormat("{0}-|-{1}-|-{2}-||-", code.Subject, code.Grade, code.Code);
}
var data = new NameValueCollection();
data.Add("newgrades", string.Empty);
data.Add("data", stringBuilder.ToString());
string reply = WebFunctions.Request(data);
string[] formattedReply = Regex.Split(reply, Environment.NewLine);
foreach (string line in formattedReply)
{
if (line.StartsWith("Grade saved"))
{
DeleteFirstCode();
}
else if (line.StartsWith("Code already used"))
{
DeleteFirstCode();
}
}
reply = reply.Replace("Grade saved!", string.Empty);
reply = reply.Replace("Code already used!", string.Empty);
formattedReply = Regex.Split(reply, Environment.NewLine);
formattedReply = formattedReply.TrimArray();
List <string> gradedStudents = new List <string> ();
StringBuilder resultMessage = new StringBuilder();
foreach (string line in formattedReply)
{
if (line.StartsWith("Graded student"))
{
gradedStudents.Add(line.Replace("Graded student: ", string.Empty));
}
else
{
foreach (string line2 in formattedReply)
{
resultMessage.AppendLine(line2);
}
Functions.CurrentContext.RunOnUiThread(() => ResponseManager.ShowMessage("Success", resultMessage.ToString()));
return;
}
}
if (gradedStudents.Count == 0)
{
resultMessage.AppendLine("All sent codes were already graded!");
}
else
{
resultMessage.AppendLine("Grades successfully synced to server! Results:");
resultMessage.AppendLine();
foreach (string student in Functions.ShuffleArray(gradedStudents.ToArray()))
{
resultMessage.AppendLine(student);
}
}
Functions.CurrentContext.RunOnUiThread(() => ResponseManager.ShowMessage("Success", resultMessage.ToString()));
}