protected void LogIn(object sender, EventArgs e)
{
if (IsValid)
{
DataSet ds = new DataSet();
String cmd = "UserName='******'";
FileStream fs = new FileStream(Server.MapPath("../App_Data/Users.xml"),
FileMode.Open, FileAccess.Read);
StreamReader reader = new StreamReader(fs);
ds.ReadXml(reader);
fs.Close();
DataTable users = ds.Tables[0];
DataRow[] matches = users.Select(cmd);
if( matches != null && matches.Length > 0 )
{
DataRow row = matches[0];
HashComputer hashComputer = new HashComputer();
string hashedpwd = hashComputer.hash(Password.Text);
String pass = (String)row["Password"];
if (0 != String.Compare(pass, hashedpwd, false))
{
// Tell the user if no password match is found. It is good
// security practice give no hints about what parts of the
// logon credentials are invalid.
FailureText.Text = "Invalid username or password.";
ErrorMessage.Visible = true;
}
else
{
// If a password match is found, redirect the request
// to the originally requested resource (Default.aspx).
FormsAuthentication.RedirectFromLoginPage
(UserName.Text, RememberMe.Checked);
}
}
else
{
FailureText.Text = "Invalid username or password.";
ErrorMessage.Visible = true;
}
}
}
protected void CreateUser_Click(object sender, EventArgs e)
{
if(0 != String.Compare(captchaBox.Text, "v4xbg", true))
{
ErrorMessage.Text = "The text doesn't match that in the image.";
return;
}
DataSet ds = new DataSet();
String userFile = "../App_Data/Users.xml";
FileStream fs = new FileStream(Server.MapPath(userFile),
FileMode.Open, FileAccess.Read);
StreamReader reader = new StreamReader(fs);
ds.ReadXml(reader);
fs.Close();
HashComputer hashComputer = new HashComputer();
string hashedpwd = hashComputer.hash(Password.Text);
DataRow newUser = ds.Tables[0].NewRow();
newUser["UserName"] = UserName.Text;
newUser["Password"] = hashedpwd;
newUser["Role"] = roleList.SelectedItem.Text;
ds.Tables[0].Rows.Add(newUser);
ds.AcceptChanges();
fs = new FileStream(Server.MapPath(userFile), FileMode.Create,
FileAccess.Write | FileAccess.Read);
StreamWriter writer = new StreamWriter(fs);
ds.WriteXml(writer);
writer.Close();
fs.Close();
if (!String.IsNullOrEmpty(Request.QueryString["ReturnUrl"]))
Response.Redirect(Request.QueryString["ReturnUrl"]);
else
Response.Redirect("~/Account/Login");
}
