/// <summary>
/// Returns an instance of a CustomIdentity class,
/// given an encrypted authentication string obtained from an HTTP cookie.
/// </summary>
/// <param name="encryptedInput">Encrypted string conataining User Identity</param>
/// <returns>CustomIdentity object</returns>
public static CustomIdentity Decrypt(string encryptedInput)
{
CustomIdentity identity = null;
try
{
string decryptedString = CustomEncryption.Decrypt(encryptedInput);
//string[] userProperties = decryptedString.Split(new char[] {'|'});
ArrayList userProperties = new ArrayList();
Split("|$|", decryptedString, userProperties);
if(userProperties != null && userProperties.Count > 0)
{
identity = new CustomIdentity();
Type t_identity = identity.GetType();
PropertyInfo[] propertyInfo = t_identity.GetProperties();
for( int i = 0; i < propertyInfo.Length; i++)
{
PropertyInfo property = propertyInfo[i];
if(property.CanWrite)
{
string propertyValue = userProperties[i].ToString();
object objValue = Convert.ChangeType(propertyValue, property.PropertyType);
property.SetValue(identity, objValue, null);
}
}
}
}
catch(Exception e)
{
string str = e.Message;
throw ;
}
return identity;
}
/// <summary>
/// Produces a string containing an encrypted string for an authenticated User Identity
/// suitable for use in an HTTP cookie given a CustomIdentity
/// </summary>
/// <param name="identity">CustomIdentity class for the authenticated user</param>
/// <returns>Encrypted string</returns>
public static string Encrypt(CustomIdentity identity)
{
string encryptedString = String.Empty;
try
{
StringBuilder en_str = new StringBuilder();
Type t_Identity = identity.GetType();
PropertyInfo[] propertyInfo = t_Identity.GetProperties();
foreach(PropertyInfo property in propertyInfo)
{
en_str.Append(property.GetValue(identity, null));
en_str.Append("|$|");
}
encryptedString = CustomEncryption.Encrypt(en_str.ToString());
}
catch(Exception e)
{
string str = e.Message;
throw ;
}
return encryptedString;
}