Example #1
1
  private HttpClient getClient() {
    if (client == null) {
      HttpClientBuilder clientBuilder = HttpClients.custom();
      RequestConfig.Builder configBuilder = RequestConfig.custom();
      if (proxy != null && !Proxy.NO_PROXY.equals(proxy)) {
        isUsingProxy = true;
        InetSocketAddress adr = (InetSocketAddress) proxy.address();
        clientBuilder.setProxy(new HttpHost(adr.getHostName(), adr.getPort()));
      }
      if (timeout != null) {
        configBuilder.setConnectTimeout(timeout.intValue());
      }
      if (readTimeout != null) {
        configBuilder.setSocketTimeout(readTimeout.intValue());
      }
      if (followRedirects != null) {
        configBuilder.setRedirectsEnabled(followRedirects.booleanValue());
      }
      if (hostnameverifier != null) {
        SSLConnectionSocketFactory sslConnectionFactory =
            new SSLConnectionSocketFactory(getSSLContext(), hostnameverifier);
        clientBuilder.setSSLSocketFactory(sslConnectionFactory);
        Registry<ConnectionSocketFactory> registry =
            RegistryBuilder.<ConnectionSocketFactory>create()
                .register("https", sslConnectionFactory)
                .register("http", PlainConnectionSocketFactory.INSTANCE)
                .build();
        clientBuilder.setConnectionManager(new BasicHttpClientConnectionManager(registry));
      }
      clientBuilder.setDefaultRequestConfig(configBuilder.build());
      client = clientBuilder.build();
    }

    return client;
  }
  private Optional<RequestConfig> addJerseyRequestConfig(ClientRequest clientRequest) {
    final Integer timeout =
        clientRequest.resolveProperty(ClientProperties.READ_TIMEOUT, Integer.class);
    final Integer connectTimeout =
        clientRequest.resolveProperty(ClientProperties.CONNECT_TIMEOUT, Integer.class);
    final Boolean followRedirects =
        clientRequest.resolveProperty(ClientProperties.FOLLOW_REDIRECTS, Boolean.class);

    if (timeout != null || connectTimeout != null || followRedirects != null) {
      final RequestConfig.Builder requestConfig = RequestConfig.copy(defaultRequestConfig);

      if (timeout != null) {
        requestConfig.setSocketTimeout(timeout);
      }

      if (connectTimeout != null) {
        requestConfig.setConnectTimeout(connectTimeout);
      }

      if (followRedirects != null) {
        requestConfig.setRedirectsEnabled(followRedirects);
      }

      return Optional.of(requestConfig.build());
    }

    return Optional.empty();
  }
Example #3
0
 protected RequestConfig configureRequest(RequestConfig.Builder rcb, Settings settings)
     throws HTTPException {
   // Configure the RequestConfig
   for (Prop key : settings.getKeys()) {
     Object value = settings.getParameter(key);
     boolean tf = (value instanceof Boolean ? (Boolean) value : false);
     if (key == Prop.ALLOW_CIRCULAR_REDIRECTS) {
       rcb.setCircularRedirectsAllowed(tf);
     } else if (key == Prop.HANDLE_REDIRECTS) {
       rcb.setRedirectsEnabled(tf);
       rcb.setRelativeRedirectsAllowed(tf);
     } else if (key == Prop.MAX_REDIRECTS) {
       rcb.setMaxRedirects((Integer) value);
     } else if (key == Prop.SO_TIMEOUT) {
       rcb.setSocketTimeout((Integer) value);
     } else if (key == Prop.CONN_TIMEOUT) {
       rcb.setConnectTimeout((Integer) value);
     } else if (key == Prop.CONN_REQ_TIMEOUT) {
       rcb.setConnectionRequestTimeout((Integer) value);
     } else if (key == Prop.MAX_THREADS) {
       connmgr.setMaxTotal((Integer) value);
       connmgr.setDefaultMaxPerRoute((Integer) value);
     } /* else ignore */
   }
   RequestConfig cfg = rcb.build();
   return cfg;
 }
  private static CloseableHttpClient createHTTPClient(
      PrivateKey privateKey, X509Certificate certificate, boolean validateCertificate) {
    // HttpClientBuilder clientBuilder = HttpClientBuilder.create();
    HttpClientBuilder clientBuilder = HttpClients.custom();
    try {
      SSLContext sslContext =
          TrustUtils.getCustomSSLContext(privateKey, certificate, validateCertificate);
      clientBuilder.setSslcontext(sslContext);
    } catch (KeyStoreException
        | NoSuchAlgorithmException
        | CertificateException
        | IOException
        | KeyManagementException
        | UnrecoverableKeyException
        | NoSuchProviderException ex) {
      LOGGER.log(Level.WARNING, "unable to set SSL context", ex);
      return null;
    }

    RequestConfig.Builder rcBuilder = RequestConfig.custom();
    // handle redirects :)
    rcBuilder.setRedirectsEnabled(true);
    // HttpClient bug caused by Lighttpd
    rcBuilder.setExpectContinueEnabled(false);
    clientBuilder.setDefaultRequestConfig(rcBuilder.build());

    // create connection manager
    // ClientConnectionManager connMgr = new SingleClientConnManager(params, registry);

    // return new DefaultHttpClient(connMgr, params);
    return clientBuilder.build();
  }
  @Override
  public OutgoingRequest createOutgoingRequest(
      DriverRequest originalRequest, String uri, boolean proxy) {
    // Extract the host in the URI. This is the host we have to send the
    // request to physically.
    HttpHost physicalHost = UriUtils.extractHost(uri);

    if (!originalRequest.isExternal()) {
      if (preserveHost) {
        // Preserve host if required
        HttpHost virtualHost = HttpRequestHelper.getHost(originalRequest.getOriginalRequest());
        // Rewrite the uri with the virtualHost
        uri = UriUtils.rewriteURI(uri, virtualHost);
      } else {
        uri = UriUtils.rewriteURI(uri, firstBaseUrlHost);
      }
    }

    RequestConfig.Builder builder = RequestConfig.custom();
    builder.setConnectTimeout(connectTimeout);
    builder.setSocketTimeout(socketTimeout);

    // Use browser compatibility cookie policy. This policy is the closest
    // to the behavior of a real browser.
    builder.setCookieSpec(CustomBrowserCompatSpecFactory.CUSTOM_BROWSER_COMPATIBILITY);

    builder.setRedirectsEnabled(false);
    RequestConfig config = builder.build();

    OutgoingRequestContext context = new OutgoingRequestContext();

    String method = "GET";
    if (proxy) {
      method = originalRequest.getOriginalRequest().getRequestLine().getMethod().toUpperCase();
    }
    OutgoingRequest outgoingRequest =
        new OutgoingRequest(
            method,
            uri,
            originalRequest.getOriginalRequest().getProtocolVersion(),
            originalRequest,
            config,
            context);
    if (ENTITY_METHODS.contains(method)) {
      outgoingRequest.setEntity(originalRequest.getOriginalRequest().getEntity());
    } else if (!SIMPLE_METHODS.contains(method)) {
      throw new UnsupportedHttpMethodException(method + " " + uri);
    }

    context.setPhysicalHost(physicalHost);
    context.setOutgoingRequest(outgoingRequest);
    context.setProxy(proxy);

    return outgoingRequest;
  }
Example #6
0
  @Override
  public void onTrigger(final ProcessContext context, final ProcessSession session) {
    final boolean sendAsFlowFile = context.getProperty(SEND_AS_FLOWFILE).asBoolean();
    final int compressionLevel = context.getProperty(COMPRESSION_LEVEL).asInteger();
    final String userAgent = context.getProperty(USER_AGENT).getValue();

    final RequestConfig.Builder requestConfigBuilder = RequestConfig.custom();
    requestConfigBuilder.setConnectionRequestTimeout(
        context.getProperty(DATA_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    requestConfigBuilder.setConnectTimeout(
        context.getProperty(CONNECTION_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    requestConfigBuilder.setRedirectsEnabled(false);
    requestConfigBuilder.setSocketTimeout(
        context.getProperty(DATA_TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue());
    final RequestConfig requestConfig = requestConfigBuilder.build();

    final StreamThrottler throttler = throttlerRef.get();
    final ProcessorLog logger = getLogger();

    final Double maxBatchBytes = context.getProperty(MAX_BATCH_SIZE).asDataSize(DataUnit.B);
    String lastUrl = null;
    long bytesToSend = 0L;

    final List<FlowFile> toSend = new ArrayList<>();
    DestinationAccepts destinationAccepts = null;
    CloseableHttpClient client = null;
    final String transactionId = UUID.randomUUID().toString();

    final ObjectHolder<String> dnHolder = new ObjectHolder<>("none");
    while (true) {
      FlowFile flowFile = session.get();
      if (flowFile == null) {
        break;
      }

      final String url = context.getProperty(URL).evaluateAttributeExpressions(flowFile).getValue();
      try {
        new java.net.URL(url);
      } catch (final MalformedURLException e) {
        logger.error(
            "After substituting attribute values for {}, URL is {}; this is not a valid URL, so routing to failure",
            new Object[] {flowFile, url});
        flowFile = session.penalize(flowFile);
        session.transfer(flowFile, REL_FAILURE);
        continue;
      }

      // If this FlowFile doesn't have the same url, throw it back on the queue and stop grabbing
      // FlowFiles
      if (lastUrl != null && !lastUrl.equals(url)) {
        session.transfer(flowFile);
        break;
      }

      lastUrl = url;
      toSend.add(flowFile);

      if (client == null || destinationAccepts == null) {
        final Config config = getConfig(url, context);
        final HttpClientConnectionManager conMan = config.getConnectionManager();

        final HttpClientBuilder clientBuilder = HttpClientBuilder.create();
        clientBuilder.setConnectionManager(conMan);
        clientBuilder.setUserAgent(userAgent);
        clientBuilder.addInterceptorFirst(
            new HttpResponseInterceptor() {
              @Override
              public void process(final HttpResponse response, final HttpContext httpContext)
                  throws HttpException, IOException {
                HttpCoreContext coreContext = HttpCoreContext.adapt(httpContext);
                ManagedHttpClientConnection conn =
                    coreContext.getConnection(ManagedHttpClientConnection.class);
                if (!conn.isOpen()) {
                  return;
                }

                SSLSession sslSession = conn.getSSLSession();

                if (sslSession != null) {
                  final X509Certificate[] certChain = sslSession.getPeerCertificateChain();
                  if (certChain == null || certChain.length == 0) {
                    throw new SSLPeerUnverifiedException("No certificates found");
                  }

                  final X509Certificate cert = certChain[0];
                  dnHolder.set(cert.getSubjectDN().getName().trim());
                }
              }
            });

        clientBuilder.disableAutomaticRetries();
        clientBuilder.disableContentCompression();

        final String username = context.getProperty(USERNAME).getValue();
        final String password = context.getProperty(PASSWORD).getValue();
        // set the credentials if appropriate
        if (username != null) {
          final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
          if (password == null) {
            credentialsProvider.setCredentials(
                AuthScope.ANY, new UsernamePasswordCredentials(username));
          } else {
            credentialsProvider.setCredentials(
                AuthScope.ANY, new UsernamePasswordCredentials(username, password));
          }
          clientBuilder.setDefaultCredentialsProvider(credentialsProvider);
        }
        client = clientBuilder.build();

        // determine whether or not destination accepts flowfile/gzip
        destinationAccepts = config.getDestinationAccepts();
        if (destinationAccepts == null) {
          try {
            if (sendAsFlowFile) {
              destinationAccepts =
                  getDestinationAcceptance(client, url, getLogger(), transactionId);
            } else {
              destinationAccepts = new DestinationAccepts(false, false, false, false, null);
            }

            config.setDestinationAccepts(destinationAccepts);
          } catch (IOException e) {
            flowFile = session.penalize(flowFile);
            session.transfer(flowFile, REL_FAILURE);
            logger.error(
                "Unable to communicate with destination {} to determine whether or not it can accept "
                    + "flowfiles/gzip; routing {} to failure due to {}",
                new Object[] {url, flowFile, e});
            context.yield();
            return;
          }
        }
      }

      // if we are not sending as flowfile, or if the destination doesn't accept V3 or V2
      // (streaming) format,
      // then only use a single FlowFile
      if (!sendAsFlowFile
          || (!destinationAccepts.isFlowFileV3Accepted()
              && !destinationAccepts.isFlowFileV2Accepted())) {
        break;
      }

      bytesToSend += flowFile.getSize();
      if (bytesToSend > maxBatchBytes.longValue()) {
        break;
      }
    }

    if (toSend.isEmpty()) {
      return;
    }

    final String url = lastUrl;
    final HttpPost post = new HttpPost(url);
    final List<FlowFile> flowFileList = toSend;
    final DestinationAccepts accepts = destinationAccepts;
    final boolean isDestinationLegacyNiFi = accepts.getProtocolVersion() == null;

    final EntityTemplate entity =
        new EntityTemplate(
            new ContentProducer() {
              @Override
              public void writeTo(final OutputStream rawOut) throws IOException {
                final OutputStream throttled =
                    (throttler == null) ? rawOut : throttler.newThrottledOutputStream(rawOut);
                OutputStream wrappedOut = new BufferedOutputStream(throttled);
                if (compressionLevel > 0 && accepts.isGzipAccepted()) {
                  wrappedOut = new GZIPOutputStream(wrappedOut, compressionLevel);
                }

                try (final OutputStream out = wrappedOut) {
                  for (final FlowFile flowFile : flowFileList) {
                    session.read(
                        flowFile,
                        new InputStreamCallback() {
                          @Override
                          public void process(final InputStream rawIn) throws IOException {
                            try (final InputStream in = new BufferedInputStream(rawIn)) {

                              FlowFilePackager packager = null;
                              if (!sendAsFlowFile) {
                                packager = null;
                              } else if (accepts.isFlowFileV3Accepted()) {
                                packager = new FlowFilePackagerV3();
                              } else if (accepts.isFlowFileV2Accepted()) {
                                packager = new FlowFilePackagerV2();
                              } else if (accepts.isFlowFileV1Accepted()) {
                                packager = new FlowFilePackagerV1();
                              }

                              // if none of the above conditions is met, we should never get here,
                              // because
                              // we will have already verified that at least 1 of the FlowFile
                              // packaging
                              // formats is acceptable if sending as FlowFile.
                              if (packager == null) {
                                StreamUtils.copy(in, out);
                              } else {
                                final Map<String, String> flowFileAttributes;
                                if (isDestinationLegacyNiFi) {
                                  // Old versions of NiFi expect nf.file.name and nf.file.path to
                                  // indicate filename & path;
                                  // in order to maintain backward compatibility, we copy the
                                  // filename & path to those attribute keys.
                                  flowFileAttributes = new HashMap<>(flowFile.getAttributes());
                                  flowFileAttributes.put(
                                      "nf.file.name",
                                      flowFile.getAttribute(CoreAttributes.FILENAME.key()));
                                  flowFileAttributes.put(
                                      "nf.file.path",
                                      flowFile.getAttribute(CoreAttributes.PATH.key()));
                                } else {
                                  flowFileAttributes = flowFile.getAttributes();
                                }

                                packager.packageFlowFile(
                                    in, out, flowFileAttributes, flowFile.getSize());
                              }
                            }
                          }
                        });
                  }

                  out.flush();
                }
              }
            });

    entity.setChunked(context.getProperty(CHUNKED_ENCODING).asBoolean());
    post.setEntity(entity);
    post.setConfig(requestConfig);

    final String contentType;
    if (sendAsFlowFile) {
      if (accepts.isFlowFileV3Accepted()) {
        contentType = APPLICATION_FLOW_FILE_V3;
      } else if (accepts.isFlowFileV2Accepted()) {
        contentType = APPLICATION_FLOW_FILE_V2;
      } else if (accepts.isFlowFileV1Accepted()) {
        contentType = APPLICATION_FLOW_FILE_V1;
      } else {
        logger.error(
            "Cannot send data to {} because the destination does not accept FlowFiles and this processor is "
                + "configured to deliver FlowFiles; rolling back session",
            new Object[] {url});
        session.rollback();
        context.yield();
        return;
      }
    } else {
      final String attributeValue = toSend.get(0).getAttribute(CoreAttributes.MIME_TYPE.key());
      contentType = (attributeValue == null) ? DEFAULT_CONTENT_TYPE : attributeValue;
    }

    final String attributeHeaderRegex = context.getProperty(ATTRIBUTES_AS_HEADERS_REGEX).getValue();
    if (attributeHeaderRegex != null && !sendAsFlowFile && flowFileList.size() == 1) {
      final Pattern pattern = Pattern.compile(attributeHeaderRegex);

      final Map<String, String> attributes = flowFileList.get(0).getAttributes();
      for (final Map.Entry<String, String> entry : attributes.entrySet()) {
        final String key = entry.getKey();
        if (pattern.matcher(key).matches()) {
          post.setHeader(entry.getKey(), entry.getValue());
        }
      }
    }

    post.setHeader(CONTENT_TYPE, contentType);
    post.setHeader(FLOWFILE_CONFIRMATION_HEADER, "true");
    post.setHeader(PROTOCOL_VERSION_HEADER, PROTOCOL_VERSION);
    post.setHeader(TRANSACTION_ID_HEADER, transactionId);
    if (compressionLevel > 0 && accepts.isGzipAccepted()) {
      post.setHeader(GZIPPED_HEADER, "true");
    }

    // Do the actual POST
    final String flowFileDescription =
        toSend.size() <= 10 ? toSend.toString() : toSend.size() + " FlowFiles";

    final String uploadDataRate;
    final long uploadMillis;
    CloseableHttpResponse response = null;
    try {
      final StopWatch stopWatch = new StopWatch(true);
      response = client.execute(post);

      // consume input stream entirely, ignoring its contents. If we
      // don't do this, the Connection will not be returned to the pool
      EntityUtils.consume(response.getEntity());
      stopWatch.stop();
      uploadDataRate = stopWatch.calculateDataRate(bytesToSend);
      uploadMillis = stopWatch.getDuration(TimeUnit.MILLISECONDS);
    } catch (final IOException e) {
      logger.error(
          "Failed to Post {} due to {}; transferring to failure",
          new Object[] {flowFileDescription, e});
      context.yield();
      for (FlowFile flowFile : toSend) {
        flowFile = session.penalize(flowFile);
        session.transfer(flowFile, REL_FAILURE);
      }
      return;
    } finally {
      if (response != null) {
        try {
          response.close();
        } catch (IOException e) {
          getLogger().warn("Failed to close HTTP Response due to {}", new Object[] {e});
        }
      }
    }

    // If we get a 'SEE OTHER' status code and an HTTP header that indicates that the intent
    // of the Location URI is a flowfile hold, we will store this holdUri. This prevents us
    // from posting to some other webservice and then attempting to delete some resource to which
    // we are redirected
    final int responseCode = response.getStatusLine().getStatusCode();
    final String responseReason = response.getStatusLine().getReasonPhrase();
    String holdUri = null;
    if (responseCode == HttpServletResponse.SC_SEE_OTHER) {
      final Header locationUriHeader = response.getFirstHeader(LOCATION_URI_INTENT_NAME);
      if (locationUriHeader != null) {
        if (LOCATION_URI_INTENT_VALUE.equals(locationUriHeader.getValue())) {
          final Header holdUriHeader = response.getFirstHeader(LOCATION_HEADER_NAME);
          if (holdUriHeader != null) {
            holdUri = holdUriHeader.getValue();
          }
        }
      }

      if (holdUri == null) {
        for (FlowFile flowFile : toSend) {
          flowFile = session.penalize(flowFile);
          logger.error(
              "Failed to Post {} to {}: sent content and received status code {}:{} but no Hold URI",
              new Object[] {flowFile, url, responseCode, responseReason});
          session.transfer(flowFile, REL_FAILURE);
        }
        return;
      }
    }

    if (holdUri == null) {
      if (responseCode == HttpServletResponse.SC_SERVICE_UNAVAILABLE) {
        for (FlowFile flowFile : toSend) {
          flowFile = session.penalize(flowFile);
          logger.error(
              "Failed to Post {} to {}: response code was {}:{}; will yield processing, "
                  + "since the destination is temporarily unavailable",
              new Object[] {flowFile, url, responseCode, responseReason});
          session.transfer(flowFile, REL_FAILURE);
        }
        context.yield();
        return;
      }

      if (responseCode >= 300) {
        for (FlowFile flowFile : toSend) {
          flowFile = session.penalize(flowFile);
          logger.error(
              "Failed to Post {} to {}: response code was {}:{}",
              new Object[] {flowFile, url, responseCode, responseReason});
          session.transfer(flowFile, REL_FAILURE);
        }
        return;
      }

      logger.info(
          "Successfully Posted {} to {} in {} at a rate of {}",
          new Object[] {
            flowFileDescription,
            url,
            FormatUtils.formatMinutesSeconds(uploadMillis, TimeUnit.MILLISECONDS),
            uploadDataRate
          });

      for (final FlowFile flowFile : toSend) {
        session
            .getProvenanceReporter()
            .send(flowFile, url, "Remote DN=" + dnHolder.get(), uploadMillis, true);
        session.transfer(flowFile, REL_SUCCESS);
      }
      return;
    }

    //
    // the response indicated a Hold URI; delete the Hold.
    //
    // determine the full URI of the Flow File's Hold; Unfortunately, the responses that are
    // returned have
    // changed over the past, so we have to take into account a few different possibilities.
    String fullHoldUri = holdUri;
    if (holdUri.startsWith("/contentListener")) {
      // If the Hold URI that we get starts with /contentListener, it may not really be
      // /contentListener,
      // as this really indicates that it should be whatever we posted to -- if posting directly to
      // the
      // ListenHTTP component, it will be /contentListener, but if posting to a proxy/load balancer,
      // we may
      // be posting to some other URL.
      fullHoldUri = url + holdUri.substring(16);
    } else if (holdUri.startsWith("/")) {
      // URL indicates the full path but not hostname or port; use the same hostname & port that we
      // posted
      // to but use the full path indicated by the response.
      int firstSlash = url.indexOf("/", 8);
      if (firstSlash < 0) {
        firstSlash = url.length();
      }
      final String beforeSlash = url.substring(0, firstSlash);
      fullHoldUri = beforeSlash + holdUri;
    } else if (!holdUri.startsWith("http")) {
      // Absolute URL
      fullHoldUri = url + (url.endsWith("/") ? "" : "/") + holdUri;
    }

    final HttpDelete delete = new HttpDelete(fullHoldUri);
    delete.setHeader(TRANSACTION_ID_HEADER, transactionId);

    while (true) {
      try {
        final HttpResponse holdResponse = client.execute(delete);
        EntityUtils.consume(holdResponse.getEntity());
        final int holdStatusCode = holdResponse.getStatusLine().getStatusCode();
        final String holdReason = holdResponse.getStatusLine().getReasonPhrase();
        if (holdStatusCode >= 300) {
          logger.error(
              "Failed to delete Hold that destination placed on {}: got response code {}:{}; routing to failure",
              new Object[] {flowFileDescription, holdStatusCode, holdReason});

          for (FlowFile flowFile : toSend) {
            flowFile = session.penalize(flowFile);
            session.transfer(flowFile, REL_FAILURE);
          }
          return;
        }

        logger.info(
            "Successfully Posted {} to {} in {} milliseconds at a rate of {}",
            new Object[] {flowFileDescription, url, uploadMillis, uploadDataRate});

        for (FlowFile flowFile : toSend) {
          session.getProvenanceReporter().send(flowFile, url);
          session.transfer(flowFile, REL_SUCCESS);
        }
        return;
      } catch (final IOException e) {
        logger.warn(
            "Failed to delete Hold that destination placed on {} due to {}",
            new Object[] {flowFileDescription, e});
      }

      if (!isScheduled()) {
        context.yield();
        logger.warn(
            "Failed to delete Hold that destination placed on {}; Processor has been stopped so routing FlowFile(s) to failure",
            new Object[] {flowFileDescription});
        for (FlowFile flowFile : toSend) {
          flowFile = session.penalize(flowFile);
          session.transfer(flowFile, REL_FAILURE);
        }
        return;
      }
    }
  }