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https://issues.apache.org/jira/browse/NIFI-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15400904#comment-15400904
]
ASF GitHub Bot commented on NIFI-2193:
--------------------------------------
Github user brosander commented on a diff in the pull request:
https://github.com/apache/nifi/pull/695#discussion_r72896746
--- Diff:
nifi-toolkit/nifi-toolkit-tls/src/main/java/org/apache/nifi/toolkit/tls/service/TlsCertificateSigningRequestPerformer.java
---
@@ -0,0 +1,144 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.nifi.toolkit.tls.service;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.io.input.BoundedInputStream;
+import org.apache.http.HttpHost;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
+import org.apache.http.entity.ByteArrayEntity;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.apache.nifi.toolkit.tls.configuration.TlsClientConfig;
+import org.apache.nifi.toolkit.tls.util.TlsHelper;
+import org.bouncycastle.pkcs.jcajce.JcaPKCS10CertificationRequest;
+import org.eclipse.jetty.server.Response;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.security.KeyPair;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.X509Certificate;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Supplier;
+
+public class TlsCertificateSigningRequestPerformer {
+ public static final String RECEIVED_RESPONSE_CODE = "Received response
code ";
+ public static final String EXPECTED_ONE_CERTIFICATE = "Expected one
certificate";
+ public static final String EXPECTED_RESPONSE_TO_CONTAIN_HMAC =
"Expected response to contain hmac";
+ public static final String
UNEXPECTED_HMAC_RECEIVED_POSSIBLE_MAN_IN_THE_MIDDLE = "Unexpected hmac
received, possible man in the middle";
+ public static final String EXPECTED_RESPONSE_TO_CONTAIN_CERTIFICATE =
"Expected response to contain certificate";
+ private final Supplier<HttpClientBuilder> httpClientBuilderSupplier;
+ private final String caHostname;
+ private final String dn;
+ private final String token;
+ private final int port;
+ private final TlsHelper tlsHelper;
+
+ public TlsCertificateSigningRequestPerformer(TlsClientConfig
tlsClientConfig) throws NoSuchAlgorithmException {
+ this(HttpClientBuilder::create, tlsClientConfig.getCaHostname(),
tlsClientConfig.getDn(), tlsClientConfig.getToken(), tlsClientConfig.getPort(),
tlsClientConfig.createTlsHelper());
+ }
+
+ public
TlsCertificateSigningRequestPerformer(Supplier<HttpClientBuilder>
httpClientBuilderSupplier, TlsClientConfig tlsClientConfig) throws
NoSuchAlgorithmException {
+ this(httpClientBuilderSupplier, tlsClientConfig.getCaHostname(),
tlsClientConfig.getDn(), tlsClientConfig.getToken(), tlsClientConfig.getPort(),
tlsClientConfig.createTlsHelper());
+ }
+
+ public
TlsCertificateSigningRequestPerformer(Supplier<HttpClientBuilder>
httpClientBuilderSupplier, String caHostname, String dn, String token, int
port, TlsHelper tlsHelper) {
+ this.httpClientBuilderSupplier = httpClientBuilderSupplier;
+ this.caHostname = caHostname;
+ this.dn = dn;
+ this.token = token;
+ this.port = port;
+ this.tlsHelper = tlsHelper;
+ }
+
+ public static String getDn(String hostname) {
+ return "CN=" + hostname + ",OU=NIFI";
+ }
+
+ /**
+ * Submits a CSR to the Certificate authority, checks the resulting
hmac, and returns the chain if everything succeeds
+ *
+ * @param objectMapper for serialization
+ * @param keyPair the keypair to generate the csr for
+ * @throws IOException if there is a problem during the process
+ * @returnd the resulting certificate chain
+ */
+ public X509Certificate[] perform(ObjectMapper objectMapper, KeyPair
keyPair) throws IOException {
+ try {
+ List<X509Certificate> certificates = new ArrayList<>();
+
+ HttpClientBuilder httpClientBuilder =
httpClientBuilderSupplier.get();
+ SSLContextBuilder sslContextBuilder =
SSLContextBuilder.create();
+
+ // We will be validating that we are talking to the correct
host once we get the response's hmac of the token and public key of the ca
+ sslContextBuilder.loadTrustMaterial(null, new
TrustSelfSignedStrategy());
+ httpClientBuilder.setSSLSocketFactory(new
TlsCertificateAuthorityClientSocketFactory(sslContextBuilder.build(),
caHostname, certificates));
+
+ String jsonResponseString;
+ int responseCode;
+ try (CloseableHttpClient client = httpClientBuilder.build()) {
+ JcaPKCS10CertificationRequest request =
tlsHelper.generateCertificationRequest(dn, keyPair);
+ TlsCertificateAuthorityRequest
tlsCertificateAuthorityRequest = new
TlsCertificateAuthorityRequest(tlsHelper.calculateHMac(token,
request.getPublicKey()),
+ tlsHelper.pemEncodeJcaObject(request));
+
+ HttpPost httpPost = new HttpPost();
+ httpPost.setEntity(new
ByteArrayEntity(objectMapper.writeValueAsBytes(tlsCertificateAuthorityRequest)));
+
+ try (CloseableHttpResponse response = client.execute(new
HttpHost(caHostname, port, "https"), httpPost)) {
+ jsonResponseString = IOUtils.toString(new
BoundedInputStream(response.getEntity().getContent(), 1024 * 1024),
StandardCharsets.UTF_8);
+ responseCode =
response.getStatusLine().getStatusCode();
+ }
+ }
+
+ if (responseCode != Response.SC_OK) {
+ throw new IOException(RECEIVED_RESPONSE_CODE +
responseCode + " with payload " + jsonResponseString);
--- End diff --
Updated PR to catch exception and wrap in very generic message on server
side. As far as response goes, if you look at
TlsCertificateAuthorityServiceHandler, it sends back an enumerated set of error
messages that shouldn't reveal too much to a bad guy.
> Command Line Keystore and Truststore utility
> --------------------------------------------
>
> Key: NIFI-2193
> URL: https://issues.apache.org/jira/browse/NIFI-2193
> Project: Apache NiFi
> Issue Type: New Feature
> Reporter: Bryan Rosander
> Assignee: Bryan Rosander
>
> In order to facilitate secure setup of NiFi, it would be useful to have a
> command line utility capable of generating the required keystores,
> truststore, and relevant configuration files.
> It should be able to generate keystores for each NiFi node, a truststore that
> they all use, and relevant passwords and configuration files for using the
> keystores and truststore.
> Additionally, in order to support distributed deployment, a web based
> certificate authority with corresponding client will allow for each NiFi
> instance to generate its own keypair and then request signing by the CA.
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