/// <summary>
/// Gets a dictionary of form key / values that should be submitted to the payment provider.
/// </summary>
/// <param name="variables">The transaction variables.</param>
/// <returns>A dictionary of form key / values that should be submitted to the payment provider.</returns>
public override Dictionary<string, string> GetTransactionRequest(TransactionVariables variables)
{
this.FormData["EPS_AMOUNT"] = variables.TransactionAmount.ToString("F2");
this.FormData["EPS_REFERENCEID"] = variables.TransactionReference;
this.FormData["EPS_TIMESTAMP"] = DateTime.Now.ToUniversalTime().ToString("yyyyMMddHHmmss");
this.FormData["EPS_FINGERPRINT"] = string.Format(
"{0}|{1}|{2}|{3}|{4}|{5}",
this.FormData["EPS_MERCHANT"],
variables.MerchantPassword,
this.FormData["EPS_TXNTYPE"],
this.FormData["EPS_REFERENCEID"],
this.FormData["EPS_AMOUNT"],
this.FormData["EPS_TIMESTAMP"]).ToSha1Hash();
return this.FormData;
}
/// <summary>
/// Sets the properties of a <see cref="SecurePayTransactionResponse"/> object
/// based on the parameters of a <see cref="HttpRequest"/> object.
/// </summary>
/// <param name="httpRequest">A <see cref="HttpRequest"/> object to read from.</param>
/// <param name="securePayResponse">A <see cref="SecurePayTransactionResponse"/> object to write to.</param>
/// <param name="variables">The transaction variables.</param>
/// <exception cref="SecurityException">
/// The returned fingerprint value does not match the expected value.
/// </exception>
public void Convert(HttpRequest httpRequest, SecurePayTransactionResponse securePayResponse, TransactionVariables variables)
{
string merchantId = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.MERCHANT_ID);
string referenceId = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.REFERENCE_ID);
string timestamp = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.TIMESTAMP);
string summaryCode = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.SUMMARY_CODE);
string fingerprint = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.FINGERPRINT);
string localFingerprint = string.Format(
"{0}|{1}|{2}|{3}|{4}|{5}",
merchantId,
variables.MerchantPassword,
referenceId,
variables.TransactionAmount.ToString("F2"),
timestamp,
summaryCode).ToSha1Hash();
if (!localFingerprint.Equals(fingerprint))
{
throw new SecurityException("Invalid fingerprint.");
}
securePayResponse.TransactionResult = !string.IsNullOrEmpty(summaryCode) ? (SecurePayTransactionResult)Enum.Parse(typeof(SecurePayTransactionResult), summaryCode) : SecurePayTransactionResult.Unknown;
securePayResponse.SummaryCode = summaryCode;
securePayResponse.ResponseCode = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.RESPONSE_CODE);
securePayResponse.ResponseText = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.RESPONSE_TEXT);
securePayResponse.ReferenceId = referenceId;
securePayResponse.TransactionId = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.TRANSACTION_ID);
securePayResponse.Amount = variables.TransactionAmount;
string settlementDatestamp = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.SETTLEMENT_DATE);
if (!string.IsNullOrEmpty(settlementDatestamp))
{
securePayResponse.SettlementDate = new DateTime(
System.Convert.ToInt32(settlementDatestamp.Substring(0, 4)),
System.Convert.ToInt32(settlementDatestamp.Substring(4, 2)),
System.Convert.ToInt32(settlementDatestamp.Substring(6, 2)));
}
securePayResponse.PreAuthorisationId = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.PREAUTHORISATION_ID);
securePayResponse.ExpiryDate = this.RequestParamNullGuard(httpRequest, SecurePayConstants.Result.EXPIRY_DATE);
securePayResponse.MerchantId = merchantId;
securePayResponse.Timestamp = timestamp;
}