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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.util.http;
import com.yahoo.security.tls.MixedMode;
import com.yahoo.security.tls.TlsContext;
import com.yahoo.security.tls.TransportSecurityUtils;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.client.ClientRequestFilter;
import javax.ws.rs.core.UriBuilder;
import java.net.URI;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Filter;
import java.util.logging.Level;
import java.util.logging.Logger;
import static java.util.logging.Level.CONFIG;
/**
* Factory for JAX-RS http client builder for internal Vespa communications over http/https.
*
* Notes:
* - hostname verification is not enabled - CN/SAN verification is assumed to be handled by the underlying x509 trust manager.
* - ssl context or hostname verifier must not be overridden by the caller
*
* @deprecated Use Apache httpclient based client factory instead (VespaHttpClientBuilder).
* @author bjorncs
*/
@Deprecated(forRemoval = true)
public class VespaClientBuilderFactory implements AutoCloseable {
private static final Logger log = Logger.getLogger(VespaClientBuilderFactory.class.getName());
// Keep instances of the Jersey loggers to block the JVM from GCing them in case we initialize the loggers before
// their owner classes (e.g ExecutorProviders) are loaded.
private static final List<Logger> externalJerseyLoggers = new CopyOnWriteArrayList<>();
static {
// CONFIG log message are logged repeatedly from these classes.
disableConfigLogging("org.glassfish.jersey.client.internal.HttpUrlConnector");
disableConfigLogging("org.glassfish.jersey.process.internal.ExecutorProviders");
disableConfigLogging("athenz.shade.zts.org.glassfish.jersey.client.internal.HttpUrlConnector");
disableConfigLogging("athenz.shade.zts.org.glassfish.jersey.process.internal.ExecutorProviders");
}
// This method will hook a filter into the Jersey logger removing unwanted config messages.
private static void disableConfigLogging(String className) {
@SuppressWarnings("LoggerInitializedWithForeignClass")
Logger logger = Logger.getLogger(className);
Optional<Filter> currentFilter = Optional.ofNullable(logger.getFilter());
Filter filter = logRecord ->
!logRecord.getLevel().equals(CONFIG)
&& currentFilter.map(f -> f.isLoggable(logRecord)).orElse(true); // Honour existing filter if exists
logger.setFilter(filter);
externalJerseyLoggers.add(logger);
}
private final TlsContext tlsContext = TransportSecurityUtils.createTlsContext().orElse(null);
private final MixedMode mixedMode = TransportSecurityUtils.getInsecureMixedMode();
private final AtomicBoolean closed = new AtomicBoolean(false);
public ClientBuilder newBuilder() {
if (closed.get()) throw new IllegalStateException("Client already closed");
ClientBuilder builder = ClientBuilder.newBuilder();
setSslConfiguration(builder);
return builder;
}
private void setSslConfiguration(ClientBuilder builder) {
if (tlsContext != null) {
builder.sslContext(tlsContext.context());
builder.hostnameVerifier((hostname, sslSession) -> true); // disable hostname verification
if (mixedMode != MixedMode.PLAINTEXT_CLIENT_MIXED_SERVER) {
builder.register(new UriRewritingRequestFilter());
}
}
}
@Override
public void close() {
if (closed.getAndSet(true)) throw new IllegalStateException("Client already closed");
if (tlsContext != null) {
tlsContext.close();
}
}
static class UriRewritingRequestFilter implements ClientRequestFilter {
@Override
public void filter(ClientRequestContext requestContext) {
requestContext.setUri(rewriteUri(requestContext.getUri()));
}
private static URI rewriteUri(URI originalUri) {
if (!originalUri.getScheme().equals("http")) {
return originalUri;
}
int port = originalUri.getPort();
int rewrittenPort = port != -1 ? port : 80;
URI rewrittenUri = UriBuilder.fromUri(originalUri).scheme("https").port(rewrittenPort).build();
log.log(Level.FINE, () -> String.format("Uri rewritten from '%s' to '%s'", originalUri, rewrittenUri));
return rewrittenUri;
}
}
}
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