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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.http.server.jetty;
import com.google.inject.Inject;
import com.yahoo.jdisc.Metric;
import com.yahoo.jdisc.http.ConnectorConfig;
import com.yahoo.jdisc.http.ssl.SslContextFactoryProvider;
import com.yahoo.security.tls.MixedMode;
import com.yahoo.security.tls.TransportSecurityUtils;
import org.eclipse.jetty.server.ConnectionFactory;
import org.eclipse.jetty.server.DetectorConnectionFactory;
import org.eclipse.jetty.server.HttpConfiguration;
import org.eclipse.jetty.server.HttpConnectionFactory;
import org.eclipse.jetty.server.ProxyConnectionFactory;
import org.eclipse.jetty.server.SecureRequestCustomizer;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.server.SslConnectionFactory;
import org.eclipse.jetty.util.ssl.SslContextFactory;
import java.util.List;
/**
* @author Einar M R Rosenvinge
* @author bjorncs
*/
public class ConnectorFactory {
private final ConnectorConfig connectorConfig;
private final SslContextFactoryProvider sslContextFactoryProvider;
@Inject
public ConnectorFactory(ConnectorConfig connectorConfig,
SslContextFactoryProvider sslContextFactoryProvider) {
runtimeConnectorConfigValidation(connectorConfig);
this.connectorConfig = connectorConfig;
this.sslContextFactoryProvider = sslContextFactoryProvider;
}
// Perform extra connector config validation that can only be performed at runtime,
// e.g. due to TLS configuration through environment variables.
private static void runtimeConnectorConfigValidation(ConnectorConfig config) {
validateProxyProtocolConfiguration(config);
validateSecureRedirectConfig(config);
}
private static void validateProxyProtocolConfiguration(ConnectorConfig config) {
ConnectorConfig.ProxyProtocol proxyProtocolConfig = config.proxyProtocol();
if (proxyProtocolConfig.enabled()) {
boolean tlsMixedModeEnabled = TransportSecurityUtils.getInsecureMixedMode() != MixedMode.DISABLED;
if (!isSslEffectivelyEnabled(config) || tlsMixedModeEnabled) {
throw new IllegalArgumentException("Proxy protocol can only be enabled if connector is effectively HTTPS only");
}
}
}
private static void validateSecureRedirectConfig(ConnectorConfig config) {
if (config.secureRedirect().enabled() && isSslEffectivelyEnabled(config)) {
throw new IllegalArgumentException("Secure redirect can only be enabled on connectors without HTTPS");
}
}
public ConnectorConfig getConnectorConfig() {
return connectorConfig;
}
public ServerConnector createConnector(final Metric metric, final Server server, JettyConnectionLogger connectionLogger) {
ServerConnector connector = new JDiscServerConnector(
connectorConfig, metric, server, connectionLogger, createConnectionFactories(metric).toArray(ConnectionFactory[]::new));
connector.setPort(connectorConfig.listenPort());
connector.setName(connectorConfig.name());
connector.setAcceptQueueSize(connectorConfig.acceptQueueSize());
connector.setReuseAddress(connectorConfig.reuseAddress());
connector.setIdleTimeout((long)(connectorConfig.idleTimeout() * 1000.0));
return connector;
}
private List<ConnectionFactory> createConnectionFactories(Metric metric) {
HttpConnectionFactory httpFactory = newHttpConnectionFactory();
if (!isSslEffectivelyEnabled(connectorConfig)) {
return List.of(httpFactory);
} else if (connectorConfig.ssl().enabled()) {
return connectionFactoriesForHttps(metric, httpFactory);
} else if (TransportSecurityUtils.isTransportSecurityEnabled()) {
switch (TransportSecurityUtils.getInsecureMixedMode()) {
case TLS_CLIENT_MIXED_SERVER:
case PLAINTEXT_CLIENT_MIXED_SERVER:
return List.of(new DetectorConnectionFactory(newSslConnectionFactory(metric, httpFactory)), httpFactory);
case DISABLED:
return connectionFactoriesForHttps(metric, httpFactory);
default:
throw new IllegalStateException();
}
} else {
return List.of(httpFactory);
}
}
private List<ConnectionFactory> connectionFactoriesForHttps(Metric metric, HttpConnectionFactory httpFactory) {
ConnectorConfig.ProxyProtocol proxyProtocolConfig = connectorConfig.proxyProtocol();
SslConnectionFactory sslFactory = newSslConnectionFactory(metric, httpFactory);
if (proxyProtocolConfig.enabled()) {
if (proxyProtocolConfig.mixedMode()) {
return List.of(new DetectorConnectionFactory(sslFactory, new ProxyConnectionFactory(sslFactory.getProtocol())), sslFactory, httpFactory);
} else {
return List.of(new ProxyConnectionFactory(sslFactory.getProtocol()), sslFactory, httpFactory);
}
} else {
return List.of(sslFactory, httpFactory);
}
}
private HttpConnectionFactory newHttpConnectionFactory() {
HttpConfiguration httpConfig = new HttpConfiguration();
httpConfig.setSendDateHeader(true);
httpConfig.setSendServerVersion(false);
httpConfig.setSendXPoweredBy(false);
httpConfig.setHeaderCacheSize(connectorConfig.headerCacheSize());
httpConfig.setOutputBufferSize(connectorConfig.outputBufferSize());
httpConfig.setRequestHeaderSize(connectorConfig.requestHeaderSize());
httpConfig.setResponseHeaderSize(connectorConfig.responseHeaderSize());
if (isSslEffectivelyEnabled(connectorConfig)) {
httpConfig.addCustomizer(new SecureRequestCustomizer());
}
return new HttpConnectionFactory(httpConfig);
}
private SslConnectionFactory newSslConnectionFactory(Metric metric, HttpConnectionFactory httpFactory) {
SslContextFactory ctxFactory = sslContextFactoryProvider.getInstance(connectorConfig.name(), connectorConfig.listenPort());
SslConnectionFactory connectionFactory = new SslConnectionFactory(ctxFactory, httpFactory.getProtocol());
connectionFactory.addBean(new SslHandshakeFailedListener(metric, connectorConfig.name(), connectorConfig.listenPort()));
return connectionFactory;
}
private static boolean isSslEffectivelyEnabled(ConnectorConfig config) {
return config.ssl().enabled()
|| (config.implicitTlsEnabled() && TransportSecurityUtils.isTransportSecurityEnabled());
}
}
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