smolnar82 commented on a change in pull request #60: KNOX-1418 - New KnoxShell
command to build truststore using the gateway server's public certificate
URL: https://github.com/apache/knox/pull/60#discussion_r260613932
##########
File path:
gateway-shell/src/main/java/org/apache/knox/gateway/shell/KnoxSh.java
##########
@@ -155,6 +170,81 @@ public boolean validate() {
public abstract String getUsage();
}
+ private class KnoxBuildTrustStore extends Command {
+
+ private static final String USAGE = "buildTrustStore --gateway server-url";
+ private static final String DESC = "Downloads the gateway server's public
certificate and builds a trust store.";
+ private static final String CLIENT_TRUST_STORE_FILE_NAME =
"gateway-client-trust.jks";
+
+ @Override
+ public void execute() throws Exception {
+ final X509Certificate gatewayServerPublicCert =
fetchPublicCertFromGatewayServer();
+ if (gatewayServerPublicCert != null) {
+ final File trustStoreFile = new File(System.getProperty("user.home"),
CLIENT_TRUST_STORE_FILE_NAME);
+ X509CertificateUtil.writeCertificateToJks(gatewayServerPublicCert,
trustStoreFile);
+ out.println("Gateway server's certificate is exported into " +
trustStoreFile.getAbsolutePath());
+ } else {
+ out.println("Could not obtain server certificate chain");
+ }
+ }
+
+ private X509Certificate fetchPublicCertFromGatewayServer() throws
Exception {
+ final TrustManagerFactory trustManagerFactory =
TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+ trustManagerFactory.init((KeyStore) null);
+ final X509TrustManager defaultTrustManager = (X509TrustManager)
trustManagerFactory.getTrustManagers()[0];
+ final CertificateChainAwareTrustManager trustManagerWithCertificateChain
= new CertificateChainAwareTrustManager(defaultTrustManager);
+ final SSLContext sslContext = SSLContext.getInstance("TLS");
+ sslContext.init(null, new TrustManager[] {
trustManagerWithCertificateChain }, null);
+
+ final URI uri = URI.create(gateway);
+ out.println("Opening connection to " + uri.getHost() + ":" +
uri.getPort() + "...");
+ final SSLSocket socket = (SSLSocket)
sslContext.getSocketFactory().createSocket(uri.getHost(), uri.getPort());
+ socket.setSoTimeout(10000);
+ try {
+ out.println("Starting SSL handshake...");
+ socket.startHandshake();
+ socket.close();
+ out.println();
+ out.println("No errors, certificate is already trusted");
+ } catch (SSLException e) {
+ // NOP; this is expected in case the gateway server's certificate is
not in the trust store the JVM uses
+ out.println("SSL exception; found non-trusted certificate");
+ }
+
+ return trustManagerWithCertificateChain.certificateChain == null ? null
: trustManagerWithCertificateChain.certificateChain[0];
Review comment:
It's enough; right? We only need to have one certificate in the KnoxShell's
truststore with 'gateway-identity` alias.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
