/**
* Generates a Payment message based on the information in the PaymentRequest. Provide
* transactions built by the wallet. If the PaymentRequest did not specify a payment_url, returns
* null.
*
* @param txns list of transactions to be included with the Payment message.
* @param refundAddr will be used by the merchant to send money back if there was a problem.
* @param memo is a message to include in the payment message sent to the merchant.
*/
@Nullable
public Protos.Payment getPayment(
List<Transaction> txns, @Nullable Address refundAddr, @Nullable String memo)
throws IOException, PaymentProtocolException.InvalidNetwork {
if (paymentDetails.hasPaymentUrl()) {
for (Transaction tx : txns)
if (!tx.getParams().equals(params))
throw new PaymentProtocolException.InvalidNetwork(params.getPaymentProtocolId());
return PaymentProtocol.createPaymentMessage(
txns, totalValue, refundAddr, memo, getMerchantData());
} else {
return null;
}
}
/**
* Creates a PaymentSession from the provided {@link Protos.PaymentRequest}. If verifyPki is true,
* also validates the signature and throws an exception if it fails. If trustStoreLoader is null,
* the system default trust store is used.
*/
public PaymentSession(
Protos.PaymentRequest request,
boolean verifyPki,
@Nullable final TrustStoreLoader trustStoreLoader)
throws PaymentProtocolException {
TrustStoreLoader nonNullTrustStoreLoader =
trustStoreLoader != null
? trustStoreLoader
: new TrustStoreLoader.DefaultTrustStoreLoader();
parsePaymentRequest(request);
if (verifyPki) {
try {
pkiVerificationData =
PaymentProtocol.verifyPaymentRequestPki(request, nonNullTrustStoreLoader.getKeyStore());
} catch (IOException x) {
throw new PaymentProtocolException(x);
} catch (KeyStoreException x) {
throw new PaymentProtocolException(x);
}
} else {
pkiVerificationData = null;
}
}