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// Copyright Yahoo. 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.yahoo.component.annotation.Inject;
import com.yahoo.jdisc.Metric;
import com.yahoo.jdisc.http.ConnectorConfig;
import com.yahoo.jdisc.http.SslProvider;
import com.yahoo.jdisc.http.ssl.impl.DefaultConnectorSsl;
import com.yahoo.security.tls.MixedMode;
import com.yahoo.security.tls.TransportSecurityUtils;
import org.eclipse.jetty.alpn.server.ALPNServerConnectionFactory;
import org.eclipse.jetty.http.HttpCompliance;
import org.eclipse.jetty.http2.server.AbstractHTTP2ServerConnectionFactory;
import org.eclipse.jetty.http2.server.HTTP2CServerConnectionFactory;
import org.eclipse.jetty.http2.server.HTTP2ServerConnectionFactory;
import org.eclipse.jetty.io.ByteBufferPool;
import org.eclipse.jetty.server.ConnectionFactory;
import org.eclipse.jetty.server.Connector;
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.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import static com.yahoo.security.tls.MixedMode.DISABLED;
import static com.yahoo.security.tls.MixedMode.PLAINTEXT_CLIENT_MIXED_SERVER;
import static com.yahoo.security.tls.MixedMode.TLS_CLIENT_MIXED_SERVER;
/**
* @author Einar M R Rosenvinge
* @author bjorncs
*/
public class ConnectorFactory {
private static final Logger log = Logger.getLogger(ConnectorFactory.class.getName());
private final ConnectorConfig connectorConfig;
private final SslProvider sslProvider;
@Inject
public ConnectorFactory(ConnectorConfig connectorConfig,
SslProvider sslProvider) {
runtimeConnectorConfigValidation(connectorConfig);
this.connectorConfig = connectorConfig;
this.sslProvider = sslProvider;
}
// 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() != 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, ByteBufferPool bufferPool,
JettyConnectionLogger connectionLogger, ConnectionMetricAggregator connectionMetricAggregator) {
ServerConnector connector = new JDiscServerConnector(
connectorConfig, metric, server, bufferPool, connectionLogger, connectionMetricAggregator,
createConnectionFactories(metric).toArray(ConnectionFactory[]::new));
connector.setPort(connectorConfig.listenPort());
connector.setName(connectorConfig.name());
connector.setAcceptQueueSize(connectorConfig.acceptQueueSize());
connector.setReuseAddress(connectorConfig.reuseAddress());
connector.setIdleTimeout(toMillis(connectorConfig.idleTimeout()));
connector.addBean(HttpCompliance.RFC7230);
return connector;
}
private List<ConnectionFactory> createConnectionFactories(Metric metric) {
boolean vespaTlsEnabled = TransportSecurityUtils.isTransportSecurityEnabled() && connectorConfig.implicitTlsEnabled();
MixedMode tlsMixedMode = TransportSecurityUtils.getInsecureMixedMode();
if (connectorConfig.ssl().enabled() || (vespaTlsEnabled && tlsMixedMode == DISABLED)) {
return connectionFactoriesForHttps(metric);
} else if (vespaTlsEnabled) {
if (tlsMixedMode != TLS_CLIENT_MIXED_SERVER && tlsMixedMode != PLAINTEXT_CLIENT_MIXED_SERVER) {
throw new IllegalArgumentException("Unknown mixed mode " + tlsMixedMode);
}
return connectionFactoriesForTlsMixedMode(metric);
} else {
return connectorConfig.http2Enabled()
? List.of(newHttp1ConnectionFactory(), newHttp2ClearTextConnectionFactory())
: List.of(newHttp1ConnectionFactory());
}
}
private List<ConnectionFactory> connectionFactoriesForHttps(Metric metric) {
List<ConnectionFactory> factories = new ArrayList<>();
ConnectorConfig.ProxyProtocol proxyProtocolConfig = connectorConfig.proxyProtocol();
HttpConnectionFactory http1Factory = newHttp1ConnectionFactory();
ALPNServerConnectionFactory alpnFactory;
SslConnectionFactory sslFactory;
if (connectorConfig.http2Enabled()) {
alpnFactory = newAlpnConnectionFactory();
sslFactory = newSslConnectionFactory(metric, alpnFactory);
} else {
alpnFactory = null;
sslFactory = newSslConnectionFactory(metric, http1Factory);
}
if (proxyProtocolConfig.enabled()) {
factories.add(newProxyProtocolConnectionFactory(sslFactory, proxyProtocolConfig.mixedMode()));
}
factories.add(sslFactory);
if (connectorConfig.http2Enabled()) factories.add(alpnFactory);
factories.add(http1Factory);
if (connectorConfig.http2Enabled()) factories.add(newHttp2ConnectionFactory());
return List.copyOf(factories);
}
private List<ConnectionFactory> connectionFactoriesForTlsMixedMode(Metric metric) {
log.warning(String.format("TLS mixed mode enabled for port %d - HTTP/2 and proxy-protocol are not supported",
connectorConfig.listenPort()));
HttpConnectionFactory httpFactory = newHttp1ConnectionFactory();
SslConnectionFactory sslFactory = newSslConnectionFactory(metric, httpFactory);
DetectorConnectionFactory detectorFactory = newDetectorConnectionFactory(sslFactory);
return List.of(detectorFactory, httpFactory, sslFactory);
}
private HttpConfiguration newHttpConfiguration() {
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 httpConfig;
}
private HttpConnectionFactory newHttp1ConnectionFactory() {
return new HttpConnectionFactory(newHttpConfiguration());
}
private HTTP2ServerConnectionFactory newHttp2ConnectionFactory() {
HTTP2ServerConnectionFactory factory = new HTTP2ServerConnectionFactory(newHttpConfiguration());
setHttp2Config(factory);
return factory;
}
private HTTP2CServerConnectionFactory newHttp2ClearTextConnectionFactory() {
HTTP2CServerConnectionFactory factory = new HTTP2CServerConnectionFactory(newHttpConfiguration());
setHttp2Config(factory);
return factory;
}
private void setHttp2Config(AbstractHTTP2ServerConnectionFactory factory) {
factory.setStreamIdleTimeout(toMillis(connectorConfig.http2().streamIdleTimeout()));
factory.setMaxConcurrentStreams(connectorConfig.http2().maxConcurrentStreams());
factory.setInitialSessionRecvWindow(1 << 24);
factory.setInitialStreamRecvWindow(1 << 20);
}
private SslConnectionFactory newSslConnectionFactory(Metric metric, ConnectionFactory wrappedFactory) {
SslConnectionFactory connectionFactory = new SslConnectionFactory(createSslContextFactory(), wrappedFactory.getProtocol());
connectionFactory.addBean(new SslHandshakeFailedListener(metric, connectorConfig.name(), connectorConfig.listenPort()));
return connectionFactory;
}
private SslContextFactory createSslContextFactory() {
DefaultConnectorSsl ssl = new DefaultConnectorSsl();
sslProvider.configureSsl(ssl, connectorConfig.name(), connectorConfig.listenPort());
return ssl.createSslContextFactory();
}
private ALPNServerConnectionFactory newAlpnConnectionFactory() {
ALPNServerConnectionFactory factory = new ALPNServerConnectionFactory("h2", "http/1.1");
factory.setDefaultProtocol("http/1.1");
return factory;
}
private DetectorConnectionFactory newDetectorConnectionFactory(ConnectionFactory.Detecting... alternatives) {
// Note: Detector connection factory with single alternative will fallback to next protocol in connection factory list
return new DetectorConnectionFactory(alternatives);
}
private ProxyConnectionFactory newProxyProtocolConnectionFactory(ConnectionFactory wrapped, boolean mixedMode) {
return mixedMode
? new ProxyConnectionFactory(wrapped.getProtocol())
: new MandatoryProxyConnectionFactory(wrapped.getProtocol());
}
private static boolean isSslEffectivelyEnabled(ConnectorConfig config) {
return config.ssl().enabled()
|| (config.implicitTlsEnabled() && TransportSecurityUtils.isTransportSecurityEnabled());
}
private static long toMillis(double seconds) { return (long)(seconds * 1000); }
/**
* A {@link ProxyConnectionFactory} which disables the default behaviour of upgrading to
* next protocol when proxy protocol is not detected.
*/
private static class MandatoryProxyConnectionFactory extends ProxyConnectionFactory {
MandatoryProxyConnectionFactory(String next) { super(next); }
@Override protected String findNextProtocol(Connector __) { return null; }
}
}
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