public bool ValidateUser(string username, string password, string customCredential)
{
using (AuthenticationServiceClient proxy = new AuthenticationServiceClient())
{
return proxy.ValidateUser(username, password, customCredential);
}
}
private void RefreshProc()
{
// First login
AuthenticationServiceClient authClient = new AuthenticationServiceClient();
string authToken = null;
try
{
authToken = authClient.ValidateUser(m_user, m_pass);
}
catch (System.ServiceModel.EndpointNotFoundException)
{
authClient.Close();
m_onComplete(this, new OSBLEStateEventArgs(false,
"Could not connect to the OSBLE server. " +
"Please contact support if this problem persists."));
return;
}
authClient.Close();
authClient = null;
if (string.IsNullOrEmpty(authToken))
{
m_onComplete(this, new OSBLEStateEventArgs(false,
"Could not log in to OSBLE. " +
"Please check your user name and password."));
return;
}
// Now get a list of courses
OsbleServiceClient osc = new OsbleServiceClient();
m_courses = osc.GetCourses(authToken);
// Make sure we got some courses
if (null == m_courses || 0 == m_courses.Length)
{
m_onComplete(this, new OSBLEStateEventArgs(false,
"No courses were found for this user."));
return;
}
// Go through the courses and find out this user's role
List <Course> canBeGraded = new List <Course>();
foreach (Course c in m_courses)
{
CourseRole cr = osc.GetCourseRole(c.ID, authToken);
if (cr.CanGrade)
{
canBeGraded.Add(c);
}
}
m_courses = canBeGraded.ToArray();
// Success if we made it this far
m_onComplete(this, new OSBLEStateEventArgs(true, string.Empty));
}
protected void btnLogin_Click(object sender, EventArgs e)
{
AuthenticationServiceClient au = new AuthenticationServiceClient();
string user = txtUsername.Text.Trim();
string password = txtPassword.Text.Trim();
bool autenticacion = au.ValidateUser(user, password);
if (!autenticacion)
{
lblError.Visible = true;
lblError.Text = "ERROR: Username or Password incorrect";
txtUsername.Text = "";
txtPassword.Text = "";
txtUsername.Focus();
return;
}
Session["User"] = user;
Response.Redirect("Readings.aspx");
}
private void btnAccept_Click(object sender, EventArgs e)
{
AuthenticationServiceClient au = new AuthenticationServiceClient();
string usuario = txtUserName.Text.Trim();
string password = txtPassword.Text.Trim();
bool autenticacion = au.ValidateUser(usuario, password);
if (!autenticacion)
{
MessageBox.Show("Username or Password incorrect", "ERROR");
txtUserName.Text = "";
txtPassword.Text = "";
txtUserName.Focus();
return;
}
this.Hide();
frmReadings formReadings = new frmReadings();
formReadings.Show();
}
public static string OsbleLogin(string username, string password)
{
AuthenticationService authClient = new AuthenticationServiceClient();
return authClient.ValidateUser(username, password);
}
public static SaveResult Save(string userName, string password, int courseID,
Workbook wb)
{
// What needs to be done here:
// 1. "Export" each sheet in the workbook to a CSV
// 2. Package all CSVs in a zip
// 3. Upload this zip to OSBLE through the web service
string tempSaveDir = Environment.GetFolderPath(
Environment.SpecialFolder.LocalApplicationData);
if (!tempSaveDir.EndsWith("\\") &&
!tempSaveDir.EndsWith("/"))
{
tempSaveDir += "\\";
}
// For each non-empty worksheet in the workbook we need to make a CSV
ZipFile zf = new ZipFile();
int sheetCount = 0;
foreach (Worksheet ws in wb.Worksheets)
{
// We only want gradebook worksheets.
// Check for a "#" in cell A1 before making a CSV
var currentWorkSheet = Convert.ToString(ws.Range["A1"].Value);
if (currentWorkSheet == null) // Cell is empty
{
}
else if (currentWorkSheet.Contains("#")) //Cell contains #, continue...
{
// Make an in-memory CSV for the worksheet
string csvTemp = WorksheetToCSVString(ws);
if (string.IsNullOrEmpty(csvTemp))
{
continue;
}
sheetCount++;
zf.AddEntry(ws.Name + ".csv", Encoding.UTF8.GetBytes(csvTemp));
}
}
// If we didn't get any data then we can't upload to OSBLE
if (0 == sheetCount)
{
return(new SaveResult(false,
string.Format(
"Save attempt at {0} failed because no data could be obtained " +
"from the workbook.\r\nPlease make sure you have at least 2x2 " +
"cells worth of grade data in one or more worksheets.", DateTime.Now)));
}
// Save the zip to a memory stream
MemoryStream ms = new MemoryStream();
zf.Save(ms);
zf.Dispose();
zf = null;
// Get the byte array from the memory stream
byte[] data = ms.ToArray();
AuthenticationServiceClient auth = new AuthenticationServiceClient();
string authToken;
try
{
authToken = auth.ValidateUser(userName, password);
}
catch (Exception)
{
return(new SaveResult(false,
"Could not login to OSBLE. " +
"You may need to reenter your user name and password."));
}
auth.Close();
// Now we get the service client
OSBLEServices.OsbleServiceClient osc = new OSBLEServices.OsbleServiceClient();
int retVal = osc.UploadCourseGradebook(courseID, data, authToken);
osc.Close();
// The return value indicates the number of items in the zip that
// FAILED to upload if >0 or generic upload failure if == -1. A
// return value of 0 indicates success.
if (retVal >= sheetCount || -1 == retVal)
{
return(new SaveResult(
false,
string.Format(
"Save attempt at {0} failed because the data failed to upload " +
"properly. This might occur because of a lapse in Internet " +
"connectivity, so it is recommended that you try again shortly. If " +
"the problem persists, please contact OSBLE support.", DateTime.Now)));
}
else if (retVal > 0)
{
// This means that some sheets failed but some succeeded. We'll still
// issue an error message in this case.
return(new SaveResult(
false,
string.Format(
"Save attempt at {0} only uploaded some of the worksheets in the " +
"workbook. It is recommended that you try again and/or check the " +
"gradebook status online at PLUS.OSBLE.org.", DateTime.Now)));
}
return(new SaveResult(true, null));
}
