Examples with ServiceFault org.eclipse.milo.opcua.stack.core.types.structured.ServiceFault used on opensource projects

Example 1 with ServiceFault

use of org.eclipse.milo.opcua.stack.core.types.structured.ServiceFault in project milo by eclipse.

the class UascServerSymmetricHandler method sendServiceFault.

private void sendServiceFault(ChannelHandlerContext ctx, long requestId, UInteger requestHandle, Throwable fault) {
    StatusCode statusCode = UaException.extract(fault).map(UaException::getStatusCode).orElse(StatusCode.BAD);
    ServiceFault serviceFault = new ServiceFault(new ResponseHeader(DateTime.now(), requestHandle, statusCode, null, null, null));
    serializationQueue.encode((binaryEncoder, chunkEncoder) -> {
        ByteBuf messageBuffer = BufferUtil.pooledBuffer();
        try {
            binaryEncoder.setBuffer(messageBuffer);
            binaryEncoder.writeMessage(null, serviceFault);
            checkMessageSize(messageBuffer);
            EncodedMessage encodedMessage = chunkEncoder.encodeSymmetric(secureChannel, requestId, messageBuffer, MessageType.SecureMessage);
            CompositeByteBuf chunkComposite = BufferUtil.compositeBuffer();
            for (ByteBuf chunk : encodedMessage.getMessageChunks()) {
                chunkComposite.addComponent(chunk);
                chunkComposite.writerIndex(chunkComposite.writerIndex() + chunk.readableBytes());
            }
            ctx.writeAndFlush(chunkComposite, ctx.voidPromise());
        } catch (MessageEncodeException e) {
            logger.error("Error encoding {}: {}", serviceFault, e.getMessage(), e);
        } catch (UaSerializationException e) {
            logger.error("Error serializing ServiceFault: {}", e.getStatusCode(), e);
        } finally {
            messageBuffer.release();
        }
    });
}

Example 2 with ServiceFault

use of org.eclipse.milo.opcua.stack.core.types.structured.ServiceFault in project milo by eclipse.

the class OpcUaClient method maybeHandleServiceFault.

private void maybeHandleServiceFault(UaResponseMessage response, Throwable ex) {
    if (faultListeners.isEmpty())
        return;
    if (ex != null) {
        if (ex instanceof UaServiceFaultException) {
            UaServiceFaultException faultException = (UaServiceFaultException) ex;
            ServiceFault serviceFault = faultException.getServiceFault();
            logger.debug("Notifying {} ServiceFaultListeners", faultListeners.size());
            faultNotificationQueue.submit(() -> faultListeners.forEach(h -> h.onServiceFault(serviceFault)));
        } else if (ex.getCause() instanceof UaServiceFaultException) {
            UaServiceFaultException faultException = (UaServiceFaultException) ex.getCause();
            ServiceFault serviceFault = faultException.getServiceFault();
            logger.debug("Notifying {} ServiceFaultListeners", faultListeners.size());
            faultNotificationQueue.submit(() -> faultListeners.forEach(h -> h.onServiceFault(serviceFault)));
        }
    }
}

Example 3 with ServiceFault

use of org.eclipse.milo.opcua.stack.core.types.structured.ServiceFault in project milo by eclipse.

the class UascClientMessageHandler method onOpenSecureChannel.

private void onOpenSecureChannel(ChannelHandlerContext ctx, ByteBuf buffer) throws UaException {
    if (secureChannelTimeout != null) {
        if (secureChannelTimeout.cancel()) {
            logger.debug("OpenSecureChannel timeout canceled");
            secureChannelTimeout = null;
        } else {
            logger.warn("timed out waiting for secure channel");
            handshakeFuture.completeExceptionally(new UaException(StatusCodes.Bad_Timeout, "timed out waiting for secure channel"));
            ctx.close();
            return;
        }
    }
    // skip messageType, chunkType, messageSize, secureChannelId
    buffer.skipBytes(3 + 1 + 4 + 4);
    AsymmetricSecurityHeader securityHeader = AsymmetricSecurityHeader.decode(buffer, config.getEncodingLimits());
    if (headerRef.compareAndSet(null, securityHeader)) {
        // first time we've received the header; validate and verify the server certificate
        CertificateValidator certificateValidator = config.getCertificateValidator();
        SecurityPolicy securityPolicy = SecurityPolicy.fromUri(securityHeader.getSecurityPolicyUri());
        if (securityPolicy != SecurityPolicy.None) {
            ByteString serverCertificateBytes = securityHeader.getSenderCertificate();
            List<X509Certificate> serverCertificateChain = CertificateUtil.decodeCertificates(serverCertificateBytes.bytesOrEmpty());
            certificateValidator.validateCertificateChain(serverCertificateChain);
        }
    } else {
        if (!securityHeader.equals(headerRef.get())) {
            throw new UaException(StatusCodes.Bad_SecurityChecksFailed, "subsequent AsymmetricSecurityHeader did not match");
        }
    }
    if (accumulateChunk(buffer)) {
        final List<ByteBuf> buffersToDecode = chunkBuffers;
        chunkBuffers = new ArrayList<>(maxChunkCount);
        serializationQueue.decode((binaryDecoder, chunkDecoder) -> {
            ByteBuf message;
            try {
                ChunkDecoder.DecodedMessage decodedMessage = chunkDecoder.decodeAsymmetric(secureChannel, buffersToDecode);
                message = decodedMessage.getMessage();
            } catch (MessageAbortException e) {
                logger.warn("Received message abort chunk; error={}, reason={}", e.getStatusCode(), e.getMessage());
                return;
            } catch (MessageDecodeException e) {
                logger.error("Error decoding asymmetric message", e);
                handshakeFuture.completeExceptionally(e);
                ctx.close();
                return;
            }
            try {
                UaResponseMessage response = (UaResponseMessage) binaryDecoder.setBuffer(message).readMessage(null);
                StatusCode serviceResult = response.getResponseHeader().getServiceResult();
                if (serviceResult.isGood()) {
                    OpenSecureChannelResponse oscr = (OpenSecureChannelResponse) response;
                    secureChannel.setChannelId(oscr.getSecurityToken().getChannelId().longValue());
                    logger.debug("Received OpenSecureChannelResponse.");
                    NonceUtil.validateNonce(oscr.getServerNonce(), secureChannel.getSecurityPolicy());
                    installSecurityToken(ctx, oscr);
                    handshakeFuture.complete(secureChannel);
                } else {
                    ServiceFault serviceFault = (response instanceof ServiceFault) ? (ServiceFault) response : new ServiceFault(response.getResponseHeader());
                    handshakeFuture.completeExceptionally(new UaServiceFaultException(serviceFault));
                    ctx.close();
                }
            } catch (Throwable t) {
                logger.error("Error decoding OpenSecureChannelResponse", t);
                handshakeFuture.completeExceptionally(t);
                ctx.close();
            } finally {
                message.release();
            }
        });
    }
}

Example 4 with ServiceFault

use of org.eclipse.milo.opcua.stack.core.types.structured.ServiceFault in project milo by eclipse.

the class UaStackClient method deliverResponse.

/**
 * Complete {@code future} with {@code response} on the {@code deliveryQueue}.
 * <p>
 * This is done for two reasons:
 * 1. the transport future is completed on its serialization queue thread, which we want to get off of ASAP.
 * 2. the futures need to be completed serially, in the order received from the server.
 *
 * @param request  the original {@link UaRequestMessage}.
 * @param response the {@link UaResponseMessage}.
 * @param future   the {@link CompletableFuture} awaiting completion.
 */
private void deliverResponse(UaRequestMessage request, @Nullable UaResponseMessage response, @Nullable Throwable failure, CompletableFuture<UaResponseMessage> future) {
    deliveryQueue.submit(() -> {
        if (response != null) {
            ResponseHeader header = response.getResponseHeader();
            UInteger requestHandle = header.getRequestHandle();
            if (header.getServiceResult().isGood()) {
                future.complete(response);
            } else {
                ServiceFault serviceFault;
                if (response instanceof ServiceFault) {
                    serviceFault = (ServiceFault) response;
                } else {
                    serviceFault = new ServiceFault(header);
                }
                if (logger.isDebugEnabled()) {
                    logger.debug("Received ServiceFault request={} requestHandle={}, result={}", request.getClass().getSimpleName(), requestHandle, header.getServiceResult());
                }
                future.completeExceptionally(new UaServiceFaultException(serviceFault));
            }
        } else {
            assert failure != null;
            if (logger.isDebugEnabled()) {
                logger.debug("sendRequest() failed, request={}, requestHandle={}", request.getClass().getSimpleName(), request.getRequestHeader().getRequestHandle(), failure);
            }
            future.completeExceptionally(failure);
        }
    });
}

Example 5 with ServiceFault

use of org.eclipse.milo.opcua.stack.core.types.structured.ServiceFault in project milo by eclipse.

the class SessionFsmFactory method transferSubscriptions.

@SuppressWarnings("Duplicates")
private static CompletableFuture<Unit> transferSubscriptions(FsmContext<State, Event> ctx, OpcUaClient client, OpcUaSession session) {
    UaStackClient stackClient = client.getStackClient();
    OpcUaSubscriptionManager subscriptionManager = client.getSubscriptionManager();
    ImmutableList<UaSubscription> subscriptions = subscriptionManager.getSubscriptions();
    if (subscriptions.isEmpty()) {
        return completedFuture(Unit.VALUE);
    }
    CompletableFuture<Unit> transferFuture = new CompletableFuture<>();
    UInteger[] subscriptionIdsArray = subscriptions.stream().map(UaSubscription::getSubscriptionId).toArray(UInteger[]::new);
    TransferSubscriptionsRequest request = new TransferSubscriptionsRequest(client.newRequestHeader(session.getAuthenticationToken()), subscriptionIdsArray, true);
    LOGGER.debug("[{}] Sending TransferSubscriptionsRequest...", ctx.getInstanceId());
    stackClient.sendRequest(request).thenApply(TransferSubscriptionsResponse.class::cast).whenComplete((tsr, ex) -> {
        if (tsr != null) {
            List<TransferResult> results = l(tsr.getResults());
            LOGGER.debug("[{}] TransferSubscriptions supported: {}", ctx.getInstanceId(), tsr.getResponseHeader().getServiceResult());
            if (LOGGER.isDebugEnabled()) {
                try {
                    Stream<UInteger> subscriptionIds = subscriptions.stream().map(UaSubscription::getSubscriptionId);
                    Stream<StatusCode> statusCodes = results.stream().map(TransferResult::getStatusCode);
                    // noinspection UnstableApiUsage
                    String[] ss = Streams.zip(subscriptionIds, statusCodes, (i, s) -> String.format("id=%s/%s", i, StatusCodes.lookup(s.getValue()).map(sa -> sa[0]).orElse(s.toString()))).toArray(String[]::new);
                    LOGGER.debug("[{}] TransferSubscriptions results: {}", ctx.getInstanceId(), Arrays.toString(ss));
                } catch (Throwable t) {
                    LOGGER.error("[{}] error logging TransferSubscription results", ctx.getInstanceId(), t);
                }
            }
            client.getConfig().getExecutor().execute(() -> {
                for (int i = 0; i < results.size(); i++) {
                    TransferResult result = results.get(i);
                    if (!result.getStatusCode().isGood()) {
                        UaSubscription subscription = subscriptions.get(i);
                        subscriptionManager.transferFailed(subscription.getSubscriptionId(), result.getStatusCode());
                    }
                }
            });
            transferFuture.complete(Unit.VALUE);
        } else {
            StatusCode statusCode = UaException.extract(ex).map(UaException::getStatusCode).orElse(StatusCode.BAD);
            LOGGER.debug("[{}] TransferSubscriptions not supported: {}", ctx.getInstanceId(), statusCode);
            client.getConfig().getExecutor().execute(() -> {
                // because the list from getSubscriptions() above is a copy.
                for (UaSubscription subscription : subscriptions) {
                    subscriptionManager.transferFailed(subscription.getSubscriptionId(), statusCode);
                }
            });
            // supported but server implementations interpret the spec differently.
            if (statusCode.getValue() == StatusCodes.Bad_NotImplemented || statusCode.getValue() == StatusCodes.Bad_NotSupported || statusCode.getValue() == StatusCodes.Bad_OutOfService || statusCode.getValue() == StatusCodes.Bad_ServiceUnsupported) {
                // One of the expected responses; continue moving through the FSM.
                transferFuture.complete(Unit.VALUE);
            } else {
                // An unexpected response; complete exceptionally and start over.
                // Subsequent runs through the FSM will not attempt transfer because
                // transferFailed() has been called for all the existing subscriptions.
                // This will prevent us from getting stuck in a "loop" attempting to
                // reconnect to a defective server that responds with a channel-level
                // Error message to subscription transfer requests instead of an
                // application-level ServiceFault.
                transferFuture.completeExceptionally(ex);
            }
        }
    });
    return transferFuture;
}