public CreditCardTokenProvider(CreditCardInfo creditCardInfo)
: base()
{
if (creditCardInfo == null)
{
throw new ArgumentNullException("creditCardInfo");
}
this.creditCardInfo = creditCardInfo;
}
public CreditCardClientCredentials(CreditCardInfo creditCardInfo)
: base()
{
if (creditCardInfo == null)
{
throw new ArgumentNullException("creditCardInfo");
}
this.creditCardInfo = creditCardInfo;
}
public CreditCardToken(CreditCardInfo cardInfo, string id)
{
if (cardInfo == null)
{
throw new ArgumentNullException("cardInfo");
}
if (id == null)
{
throw new ArgumentNullException("id");
}
this.cardInfo = cardInfo;
this.id = id;
// The credit card token is not capable of any cryptography.
this.securityKeys = new ReadOnlyCollection<SecurityKey>(new List<SecurityKey>());
}
// This helper method checks whether a given credit card entry is present in the user database.
private bool IsCardNumberAndExpirationValid(CreditCardInfo cardInfo)
{
/** original version is using a creditcardfile to store all valid credit cards
try
{
using (StreamReader myStreamReader = new StreamReader(this.creditCardsFile))
{
string line = "";
while ((line = myStreamReader.ReadLine()) != null)
{
string[] splitEntry = line.Split('#');
if (splitEntry[0] == cardInfo.CardNumber)
{
string expirationDateString = splitEntry[1].Trim();
DateTime expirationDateOnFile = DateTime.Parse(expirationDateString, System.Globalization.DateTimeFormatInfo.InvariantInfo, System.Globalization.DateTimeStyles.AdjustToUniversal);
if (cardInfo.ExpirationDate == expirationDateOnFile)
{
string issuer = splitEntry[2];
return issuer.Equals(cardInfo.CardIssuer, StringComparison.InvariantCultureIgnoreCase);
}
else
{
return false;
}
}
}
return false;
}
}
catch (Exception e)
{
throw new Exception("BookStoreService: Error while retrieving credit card information from User DB " + e.ToString());
}
* */
// new version just using a list of credicards
return allValidCreditCards.Exists(c=>c.CardNumber == cardInfo.CardNumber);
}
public CreditCardToken(CreditCardInfo cardInfo)
: this(cardInfo, Guid.NewGuid().ToString())
{
}
/// <summary>
/// Override the ReadTokenCore(XmlReader, SecurityTokenResolver) method.
/// This method reads the XML content of the security token and constructs the appropriate in-memory representation for it.
/// If it does not recognize the XML element on which the passed-in XML reader is standing,
/// it calls the base class implementation to process the system-provided token types.
///
/// </summary>
/// <param name="reader"></param>
/// <param name="tokenResolver"></param>
/// <returns></returns>
protected override SecurityToken ReadTokenCore(XmlReader reader, SecurityTokenResolver tokenResolver)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
if (reader.IsStartElement(CreditCardTokenConstants.CreditCardTokenName, CreditCardTokenConstants.CreditCardTokenNamespace))
{
string id = reader.GetAttribute(CreditCardTokenConstants.Id, CreditCardTokenConstants.WsUtilityNamespace);
reader.ReadStartElement();
// Read the credit card number.
string creditCardNumber = reader.ReadElementString(CreditCardTokenConstants.CreditCardNumberElementName, CreditCardTokenConstants.CreditCardTokenNamespace);
// Read the expiration date.
string expirationTimeString = reader.ReadElementString(CreditCardTokenConstants.CreditCardExpirationElementName, CreditCardTokenConstants.CreditCardTokenNamespace);
DateTime expirationTime = XmlConvert.ToDateTime(expirationTimeString, XmlDateTimeSerializationMode.Utc);
// Read the issuer of the credit card.
string creditCardIssuer = reader.ReadElementString(CreditCardTokenConstants.CreditCardIssuerElementName, CreditCardTokenConstants.CreditCardTokenNamespace);
reader.ReadEndElement();
CreditCardInfo cardInfo = new CreditCardInfo(creditCardNumber, creditCardIssuer, expirationTime);
return new CreditCardToken(cardInfo, id);
}
else
{
return WSSecurityTokenSerializer.DefaultInstance.ReadToken(reader, tokenResolver);
}
}
