protected void Page_Load(object sender, EventArgs e)
{
t = (DataTable)Session["table"];
if (t == null)
{
t = new DataTable();
t.Columns.Add("User ID");
t.Columns.Add("TimeStamp");
t.Columns.Add("Hash");
t.Columns.Add("LastChecked");
t.Columns.Add("IsCurrent");
t.PrimaryKey = new DataColumn[] { t.Columns["Hash"] };
Session.Add("table", t);
}
if ((Request["id"] != null) && (!Page.IsPostBack))
{
AuthString aStr = new AuthString(Request["id"], DateTime.Parse(Request["ts"]).ToUniversalTime(), SECRET);
if (!aStr.IsValid(Request["hash"]))
{
ErrorPanel.Text = "Bad Hash Detected";
ErrorPanel.Enabled = true;
}
else
{
ErrorPanel.Enabled = false;
t.Rows.Add(Request["id"], Request["ts"], Request["hash"], DateTime.UtcNow.ToString("u"), aStr.IsCurrent() ? "Current" : "Not Current");
}
}
Session["table"] = t;
DataOutput.DataSource = t;
DataOutput.DataBind();
}
/// <summary>
/// Here is where AuthString is used
/// </summary>
protected void Button1_Click(object sender, EventArgs e)
{
AuthString aStr = null;
aStr = new AuthString(TextBox1.Text, DateTime.UtcNow, SECRET);
Session["authStr"] = aStr;
string qs = string.Format("?id={0}&ts={1}&hash={2}", aStr.UserID, aStr.TimeStamp, aStr.Hash);
Response.Redirect("./Default.aspx" + qs);
}
protected string IsCurrent()
{
AuthString aStr = null;
if (aStr != null)
{
return(aStr.IsCurrent() ?"Current":"Not Current");
}
else
{
return("");
}
}
