protected void btnRegister_Click(object sender, EventArgs e)
{
string userFilePath = Path.Combine(Request.PhysicalApplicationPath, @"App_Data\userDetails.xml");
FileStream FS = new FileStream(userFilePath, FileMode.Open, FileAccess.ReadWrite);
try
{
lblResult.Visible = false;
bool bUnique = true;
//Ensuring that all mandatory fields are filled.
if (txtfName.Text.Length > 0 && txtlName.Text.Length > 0 && txtuName.Text.Length > 0 && txtSiteKey.Text.Length > 0)
{
//Verifying CAPTCHA
//if (Page.IsValid)
if (txtCaptcha.Text == txtEnteredCaptcha.Text)
{
if (txtPassword.Text.ToLower().Equals(txtRPassword.Text.ToLower()))
{
string SaltandHash = objHash.createHash(txtPassword.Text.Trim());
if (File.Exists(userFilePath))
{
XmlDocument xdoc = new XmlDocument();
xdoc.Load(FS);
FS.Close();
foreach (XmlNode xmlnode in xdoc.SelectNodes("USERS/User/UserName"))
{
//Checking if the user name exists
if (txtuName.Text.ToLower().Equals(xmlnode.InnerText.ToLower()))
{
bUnique = false;
break;
}
}
if (bUnique)
{
//Creating a XML node and appending the required elements/nodes to the Root node
XmlNode node = xdoc.CreateNode(XmlNodeType.Element, "User", null);
XmlNode firstNameNode = xdoc.CreateElement("FirstName");
firstNameNode.InnerText = txtfName.Text.Trim();
XmlNode lastNameNode = xdoc.CreateElement("LastName");
lastNameNode.InnerText = txtlName.Text.Trim();
XmlNode userNameNode = xdoc.CreateElement("UserName");
userNameNode.InnerText = txtuName.Text.Trim();
XmlNode userType = xdoc.CreateElement("UserType");
userType.InnerText = rbTypeUser.SelectedValue.Trim();
XmlNode passwordSalt = xdoc.CreateElement("SALT");
passwordSalt.InnerText = SaltandHash.Split(':')[0];
XmlNode passwordHash = xdoc.CreateElement("HASH");
passwordHash.InnerText = SaltandHash.Split(':')[1];
XmlNode siteKeyIdx = xdoc.CreateElement("SiteKeyIndex");
siteKeyIdx.InnerText = strSiteKey;
XmlNode siteKeyPhrase = xdoc.CreateElement("SiteKeyPhrase");
siteKeyPhrase.InnerText = txtSiteKey.Text.Trim();
node.AppendChild(firstNameNode);
node.AppendChild(lastNameNode);
node.AppendChild(userNameNode);
node.AppendChild(userType);
node.AppendChild(passwordSalt);
node.AppendChild(passwordHash);
node.AppendChild(siteKeyIdx);
node.AppendChild(siteKeyPhrase);
xdoc.DocumentElement.AppendChild(node);
xdoc.Save(userFilePath);
}
else
{
lblResult.Text = "User name has to be unique";
lblResult.Visible = true;
}
}
else
{
//If the file doesnt exist.
string strXml = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
"<USERS>" +
"<User>" +
"<FirstName>" + txtfName.Text.Trim() + "</FirstName>" +
"<LastName>" + txtlName.Text.Trim() + "</LastName>" +
"<UserName>" + txtuName.Text.Trim() + "</UserName>" +
"<UserType>" + rbTypeUser.SelectedValue.Trim() + "</UserType>" +
"<SALT>" + SaltandHash.Split(':')[0] + "</SALT>" +
"<HASH>" + SaltandHash.Split(':')[1] + "</HASH>" +
"<SiteKeyIndex>" + strSiteKey + "</SiteKeyIndex>" +
"<SiteKeyPhrase>" + txtSiteKey.Text.Trim() + "</SiteKeyPhrase>" +
"</User>" +
"</USERS>";
File.WriteAllText(userFilePath, strXml);
}
if (bUnique)
{
lblResult.Text = "User Successfully Created";
lblResult.Visible = true;
Session["USERID"] = txtuName.Text.Trim();
Session["UserType"] = rbTypeUser.SelectedValue.Trim();
//Redirect user to respective page.
if (rbTypeUser.SelectedValue.Trim().Equals("Student_User"))
{
Response.Redirect("StudentHome.aspx", false);
}
else if (rbTypeUser.SelectedValue.Trim().Equals("Scholar_User"))
{
Response.Redirect("ScholarHome.aspx", false);
}
}
else
{
lblResult.Text = "Please select a unique user name";
lblResult.Visible = true;
txtuName.Text = "";
txtPassword.Text = "";
txtRPassword.Text = "";
}
}
else
{
lblResult.Text = "Passwords dont match";
lblResult.Visible = true;
}
}
else
{
lblResult.Text = "Captcha Verification Failed";
lblResult.Visible = true;
}
}
else
{
lblResult.Text = "All fields are mandatory";
lblResult.Visible = true;
}
}
catch (Exception exp)
{
lblResult.Text = "User creation Failed. Try Again ";
lblResult.Visible = true;
Console.WriteLine("Exception : " + exp.Message);
throw exp;
}
finally
{
FS.Close();
}
}