Merge pull request #5642

17005bc [Qt] add payment request unit test for non matching networks (Philip Kaufmann)
080da96 [Qt] prepare paymentservertests for new unit tests (Philip Kaufmann)

src/qt/paymentserver.cpp

@@ -521,8 +521,7 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
         const payments::PaymentDetails& details = request.getDetails();
 
         // Payment request network matches client network?
-        if (details.network() != Params().NetworkIDString())
-        {
+        if (!verifyNetwork(request.getDetails())) {
             emit message(tr("Payment request rejected"), tr("Payment request network doesn't match client network."),
                 CClientUIInterface::MSG_ERROR);
 
@@ -745,3 +744,15 @@ void PaymentServer::handlePaymentACK(const QString& paymentACKMsg)
     // currently we don't futher process or store the paymentACK message
     emit message(tr("Payment acknowledged"), paymentACKMsg, CClientUIInterface::ICON_INFORMATION | CClientUIInterface::MODAL);
 }
+
+bool PaymentServer::verifyNetwork(const payments::PaymentDetails& requestDetails)
+{
+    bool fVerified = requestDetails.network() == Params().NetworkIDString();
+    if (!fVerified) {
+        qWarning() << QString("PaymentServer::%1: Payment request network \"%2\" doesn't match client network \"%3\".")
+            .arg(__func__)
+            .arg(QString::fromStdString(requestDetails.network()))
+            .arg(QString::fromStdString(Params().NetworkIDString()));
+    }
+    return fVerified;
+}

src/qt/paymentserver.h

@@ -91,6 +91,9 @@ public:
     // This is now public, because we use it in paymentservertests.cpp
     static bool readPaymentRequestFromFile(const QString& filename, PaymentRequestPlus& request);
 
+    // Verify that the payment request network matches the client network
+    static bool verifyNetwork(const payments::PaymentDetails& requestDetails);
+
 signals:
     // Fired when a valid payment request is received
     void receivedPaymentRequest(SendCoinsRecipient);

src/qt/test/paymentrequestdata.h

@@ -6,16 +6,16 @@
 // Data for paymentservertests.cpp
 //
 
-// Base64/DER-encoded fake certificate authority certificate.
+// Base64/DER-encoded fake certificate authority certificates.
 // Convert pem to base64/der with:
-// cat file.pem | openssl x509 -inform PEM -outform DER | openssl enc -base64
-//
+// openssl x509 -in cert.pem -inform PEM -outform DER | openssl enc -base64
+
 // Serial Number: 10302349811211485352 (0x8ef94c91b112c0a8)
 // Issuer: CN=PaymentRequest Test CA
 // Subject: CN=PaymentRequest Test CA
 // Not Valid After : Dec  8 16:37:24 2022 GMT
 //
-const char* caCert_BASE64 =
+const char* caCert1_BASE64 =
 "\
 MIIB0DCCATmgAwIBAgIJAI75TJGxEsCoMA0GCSqGSIb3DQEBCwUAMCExHzAdBgNV\
 BAMTFlBheW1lbnRSZXF1ZXN0IFRlc3QgQ0EwHhcNMTIxMjEwMTYzNzI0WhcNMjIx\
@@ -29,11 +29,36 @@ RtQcf0AJ9olzUMY4syehxbzUJP6aeXhZEYiMvdvcv9D55clq6+WLLlNT3jBgAaVn\
 p3waRjPD4bUX3nv+ojz5s4puw7Qq5QUZlhGsMzPvwDGCmZkL\
 ";
 
+// Serial Number: f0:da:97:e4:38:d7:64:16
+// Issuer: CN=PaymentRequest Test CA
+// Subject: CN=PaymentRequest Test CA
+// Not Valid After : Jan  8 18:21:06 2025 GMT
+//
+const char* caCert2_BASE64 =
+"\
+MIIC1TCCAb2gAwIBAgIJAPDal+Q412QWMA0GCSqGSIb3DQEBCwUAMCExHzAdBgNV\
+BAMMFlBheW1lbnRSZXF1ZXN0IFRlc3QgQ0EwHhcNMTUwMTExMTgyMTA2WhcNMjUw\
+MTA4MTgyMTA2WjAhMR8wHQYDVQQDDBZQYXltZW50UmVxdWVzdCBUZXN0IENBMIIB\
+IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1S9wVLfTplJuT/1OaaBgl/Mb\
+I392v8S9kHbzYz7B4OTMslaO7piz0v3SO3TKMh0dswjiRdHrIgpO7XdIUQiU/ugg\
+xDw0kuNehfz1ycaGedlFFtFHTNXqLyIUF3dlwHhQwaomM6RXoJmxLny5BhYHEcmk\
+yWwr3Cdjd9gAZpblugVJB9C1e40uyL8ao4PHdLzOqO27iSe6riP8SwwisJZEbMaz\
+AZpgNEEMbIXPJEFvm5HTRXSMtQCOTSZYMFF0M2yrtmlECnz7hWP19b9bcoDzZQB4\
+ylIsFG/7q2jV7MC/e2STZv+niJiHL08RUdoFpAgzaxMgqj63C7B55HgNDNHJYQID\
+AQABoxAwDjAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQBGejPxLxj9\
++crv6gUeEBMZPiUx7pUgcI22Wm5yymP96B4fwI3Y0DBehq20d76vbWGPN17Z6pH3\
+ge7PVY1SYqXtS6hXTo4olCm/BZADli+2Bs2xCiaa+Ltve4ufVej+bKJXN/YnrhvO\
+Kq+klQkuuHywU+GJV/NQeBqToIrSOBgi477NgLFCCCmmx2QWsxHoCFGfuRCBVseT\
+z2k/tMuALCDXGeZBRPTsGHu1y4cj84swAeoDK5QSQcI+Ub7GKc+zkoj02sdDLiMo\
+3wokYPcIy47oclhmb4xubHc+y7nF610yZBoC/zgbhbawnZ65hDDWkdQ/SVAnWZD7\
+9PFfmNnYPTQH\
+";
+
 //
 // This payment request validates directly against the
-// above certificate authority.
+// caCert1 certificate authority.
 //
-const char* paymentrequest1_BASE64 =
+const char* paymentrequest1_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhrxAwruAzCCAeowggFToAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwITEfMB0GA1UEAxMWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xMjEyMTAx\
@@ -55,7 +80,7 @@ SiWVbw0tX/68iSQEGGfh9n6ee/8Myb3ICdw=\
 //
 // Signed, but expired, merchant cert in the request
 //
-const char* paymentrequest2_BASE64 =
+const char* paymentrequest2_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhrsAwrpAzCCAeUwggFOoAMCAQICAQMwDQYJKoZIhvcNAQEL\
 BQAwITEfMB0GA1UEAxMWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xMzAyMjMy\
@@ -75,9 +100,9 @@ tejrSPOBNSJ3Mi/q5u2Yl4gJZY2b\
 ";
 
 //
-// 10-long chain, all intermediates valid
+// 10-long certificate chain, all intermediates valid
 //
-const char* paymentrequest3_BASE64 =
+const char* paymentrequest3_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1Nhq8JAr/AzCCAfswggFkoAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwPzEUMBIGA1UEAwwLdGVzdGNhOC5vcmcxJzAlBgNVBAoMHlBheW1lbnQgUmVx\
@@ -184,9 +209,9 @@ chhR/aHOuEMTxmc12K4rNlgYtHCsxLP9zd+6u0cva3TucZ6EzS8PKEib/+r12/52\
 ";
 
 //
-// Long chain, with an invalid (expired) cert in the middle
+// Long certificate chain, with an expired certificate in the middle
 //
-const char* paymentrequest4_BASE64 =
+const char* paymentrequest4_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhqeJAr/AzCCAfswggFkoAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwPzEUMBIGA1UEAwwLdGVzdGNhOC5vcmcxJzAlBgNVBAoMHlBheW1lbnQgUmVx\
@@ -291,7 +316,10 @@ HXQjsfdR58qZQS9CS5DAtRUf0R8+43/wijO/hb49VNaNXmY+/cPHMkahP2aV3tZi\
 FAyZblLik9A7ZvF+UsjeFQiHB5wzWQvbqk5wQ4yabHIXoYv/E0q+eQ==\
 ";
 
-const char* paymentrequest5_BASE64 =
+//
+// Validly signed, but by a CA not in our root CA list
+//
+const char* paymentrequest5_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhrxAwruAzCCAeowggFToAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwITEfMB0GA1UEAxMWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xMzA0MTkx\
@@ -309,3 +337,27 @@ ssymvca1S/1KeM3n8Ydi2fi1JUzAAr59xPvNJRUeqCLP9upHn5z7br3P12Oz9A20\
 5/4wL4ClPRPVnOHgij0bEg+y0tGESqmF1rfOfXDszlo2U92wCxS07kq79YAZJ1Zo\
 XYh860/Q4wvc7lfiTe+dXBzPKAKhMy91yETY\
 ";
+
+//
+// Contains a testnet paytoaddress, so payment request network doesn't match client network
+//
+const char* paymentrequest1_cert2_BASE64 =
+"\
+Egt4NTA5K3NoYTI1NhrQBArNBDCCAkkwggExoAMCAQICAQEwDQYJKoZIhvcNAQEL\
+BQAwITEfMB0GA1UEAwwWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xNTAxMTEx\
+ODIxMDhaFw0yNTAxMDgxODIxMDhaMCExHzAdBgNVBAMMFlBheW1lbnRSZXF1ZXN0\
+IFRlc3QgQ0EwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMsZqzkzeBGo+i2N\
+mUak3Ciodr1V7S062VOy7N0OQYNDQHYkgDFAUET7cEb5VJaHPv5m3ppTBpU9xBcf\
+wbHHUt4VjA+mhRmYrl1khjvZM+X8kEqvWn20BtcM9R6r0yIYec8UERDDHBleL/P8\
+RkxEnVLjYTV9zigCXfMsgYb3EQShAgMBAAGjEDAOMAwGA1UdEwQFMAMBAf8wDQYJ\
+KoZIhvcNAQELBQADggEBABUJpl3QCqsoDSxAsQdV6zKT4VGV76AzoGj7etQsQY+r\
++S26VfWh/fMobEzuxFChr0USgLJ6FoK78hAtoZvt1lrye9yqFv/ig3WLWsJKWHHb\
+3RT6oR03CIwZXFSUasi08QDVLxafwsU5OMcPLucF3a1lRL1ccYrNgVCCx1+X7Bos\
+tIgDGRQQ4AyoHTcfVd2hEGeUv7k14mOxFsAp6851yosHq9Q2kwmdH+rHEJbjof87\
+yyKLagc4owyXBZYkQmkeHWCNqnuRmO5vUsfVb0UUrkD64o7Th/NjwooA7SCiUXl6\
+dfygT1b7ggpx7GC+sP2DsIM47IAZ55drjqX5u2f+Ba0iPQoEdGVzdBIhCIDWwowE\
+Ehl2qRQErGqUUwSsaMpDvWIaGnJGNQqi8oisGNeMy6UFKgxKdXN0IFRlc3Rpbmcq\
+gAFwThsozZxkZxzCn4R8WxNiLFV6m0ye9fEtSbolfaW+EjBMpO03lr/dwNnrclhg\
+ew+A05xfZztrAt16XKEY7qKJ/eY2nLd0fVAIu/nIt+7/VYVXT83zLrWc150aRS7W\
+AdJbL3JOJLs6Eyp5zrPbfI8faRttFAdONKDrJgIpuW1E3g==\
+";

src/qt/test/paymentservertests.cpp

@@ -65,38 +65,44 @@ void PaymentServerTests::paymentServerTests()
     OptionsModel optionsModel;
     PaymentServer* server = new PaymentServer(NULL, false);
     X509_STORE* caStore = X509_STORE_new();
-    X509_STORE_add_cert(caStore, parse_b64der_cert(caCert_BASE64));
+    X509_STORE_add_cert(caStore, parse_b64der_cert(caCert1_BASE64));
     PaymentServer::LoadRootCAs(caStore);
     server->setOptionsModel(&optionsModel);
     server->uiReady();
 
-    // Now feed PaymentRequests to server, and observe signals it produces:
-    std::vector<unsigned char> data = DecodeBase64(paymentrequest1_BASE64);
-    SendCoinsRecipient r = handleRequest(server, data);
+    std::vector<unsigned char> data;
+    SendCoinsRecipient r;
     QString merchant;
+
+    // Now feed PaymentRequests to server, and observe signals it produces
+
+    // This payment request validates directly against the
+    // caCert1 certificate authority:
+    data = DecodeBase64(paymentrequest1_cert1_BASE64);
+    r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString("testmerchant.org"));
 
-    // Version of the above, with an expired certificate:
-    data = DecodeBase64(paymentrequest2_BASE64);
+    // Signed, but expired, merchant cert in the request:
+    data = DecodeBase64(paymentrequest2_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
 
-    // Long certificate chain:
-    data = DecodeBase64(paymentrequest3_BASE64);
+    // 10-long certificate chain, all intermediates valid:
+    data = DecodeBase64(paymentrequest3_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString("testmerchant8.org"));
 
     // Long certificate chain, with an expired certificate in the middle:
-    data = DecodeBase64(paymentrequest4_BASE64);
+    data = DecodeBase64(paymentrequest4_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
 
     // Validly signed, but by a CA not in our root CA list:
-    data = DecodeBase64(paymentrequest5_BASE64);
+    data = DecodeBase64(paymentrequest5_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
@@ -104,11 +110,39 @@ void PaymentServerTests::paymentServerTests()
     // Try again with no root CA's, verifiedMerchant should be empty:
     caStore = X509_STORE_new();
     PaymentServer::LoadRootCAs(caStore);
-    data = DecodeBase64(paymentrequest1_BASE64);
+    data = DecodeBase64(paymentrequest1_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
 
+    // Load second root certificate
+    caStore = X509_STORE_new();
+    X509_STORE_add_cert(caStore, parse_b64der_cert(caCert2_BASE64));
+    PaymentServer::LoadRootCAs(caStore);
+
+    QByteArray byteArray;
+
+    // For the tests below we just need the payment request data from
+    // paymentrequestdata.h parsed + stored in r.paymentRequest.
+    //
+    // These tests require us to bypass the following normal client execution flow
+    // shown below to be able to explicitly just trigger a certain condition!
+    //
+    // handleRequest()
+    // -> PaymentServer::eventFilter()
+    //   -> PaymentServer::handleURIOrFile()
+    //     -> PaymentServer::readPaymentRequestFromFile()
+    //       -> PaymentServer::processPaymentRequest()
+
+    // Contains a testnet paytoaddress, so payment request network doesn't match client network:
+    data = DecodeBase64(paymentrequest1_cert2_BASE64);
+    byteArray = QByteArray((const char*)&data[0], data.size());
+    r.paymentRequest.parse(byteArray);
+    // Ensure the request is initialized, because network "main" is default, even for
+    // uninizialized payment requests and that will fail our test here.
+    QVERIFY(r.paymentRequest.IsInitialized());
+    QCOMPARE(PaymentServer::verifyNetwork(r.paymentRequest.getDetails()), false);
+
     // Just get some random data big enough to trigger BIP70 DoS protection
     unsigned char randData[BIP70_MAX_PAYMENTREQUEST_SIZE + 1];
     GetRandBytes(randData, sizeof(randData));