public static string EncryptQueryString(string queryStringName, string queryStringValue)
{
// prepare encryption of query string
QueryStringHelper qs = new QueryStringHelper();
qs.Add(queryStringName, queryStringValue);
QueryStringHelper qsEncrypted = EncryptionHelper.EncryptQueryString(qs);
return qsEncrypted.ToString();
}
public static QueryStringHelper FromUrl(string url)
{
string[] parts = url.Split("?".ToCharArray());
QueryStringHelper qs = new QueryStringHelper();
qs.document = parts[0];
if (parts.Length == 1)
return qs;
string[] keys = parts[1].Split("&".ToCharArray());
foreach (string key in keys)
{
string[] part = key.Split("=".ToCharArray());
if (part.Length == 1)
qs.Add(part[0], "");
else
qs.Add(part[0], part[1]);
}
return qs;
}
/// <summary>
/// Decrypts a querystring
/// </summary>
/// <param name="queryString">encrypted querystring</param>
/// <returns>a decrypted querystring</returns>
public static QueryStringHelper DecryptQueryString(QueryStringHelper queryString)
{
QueryStringHelper newQueryString = new QueryStringHelper();
string nm;
string val;
foreach (string name in queryString)
{
nm = EncryptionHelper.DeHex(name);
val = EncryptionHelper.DeHex(queryString[name]);
newQueryString.Add(nm, val);
}
return newQueryString;
}
/// <summary>
/// Encrypts a querystring
/// </summary>
/// <param name="queryString">a querystring</param>
/// <returns>a new encrypted querystring</returns>
public static QueryStringHelper EncryptQueryString(QueryStringHelper queryString)
{
QueryStringHelper newQueryString = new QueryStringHelper();
string nm = String.Empty;
string val = String.Empty;
foreach (string name in queryString)
{
nm = name;
val = queryString[name];
newQueryString.Add(EncryptionHelper.Hex(nm), EncryptionHelper.Hex(val));
}
return newQueryString;
}
/// <summary>
/// Example code
/// </summary>
public static void MyFunction()
{
/// Encrypting an url's parameter
string id = "12";
// encrypt a value
string href = "http://www.mypage.se/PrintInvoice.aspx" + EncryptQueryString("id", id);
// encrypting multiple values
QueryStringHelper qs = new QueryStringHelper();
qs.Add("langID", "1");
qs.Add("prodID", "84");
QueryStringHelper qsEncrypted = EncryptionHelper.EncryptQueryString(qs);
string link = "http://www.mypage.se/PrintInvoice.aspx" + qsEncrypted.ToString();
// decryptng the current url's parameter
string id1 = DecryptQueryString("id");
string id2 = DecryptQueryString("langID");
string id3 = DecryptQueryString("prodID");
// lower level
QueryStringHelper qs2 = QueryStringHelper.FromCurrent();
QueryStringHelper qsdec = EncryptionHelper.DecryptQueryString(qs2);
// check which site to show, either EventRegistration or MemberValidation Login
if (qsdec["id"] != null )
{
id3 = qsdec["prodID"];
}
}
protected void Page_Load(object sender, EventArgs e)
{
//SendOrderMail();
LoadParameters();
InitiateMode();
if (!IsPostBack)
{
LoadPriceControls();
BindRepeaters();
QueryStringHelper qs = new QueryStringHelper();
qs.Add("LangID", Master.LanguageID);
qs.Add("OrderID", orderID);
QueryStringHelper qsEncrypted = EncryptionHelper.EncryptQueryString(qs);
PrintHyperLinkImage.NavigateUrl = "~/PrintInvoice.aspx" + qsEncrypted.ToString();
//PrintHyperLinkImage.NavigateUrl = "~/PrintInvoice.aspx?OrderID=" + orderID + "&LangID=" + Master.LanguageID;
}
}