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Merge pull request #22367 from Julien-Eyraud

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* gh-22367:
  Polish "Add properties for Netty HttpDecoderSpec"
  Add properties for Netty HttpDecoderSpec

Closes gh-22367
pull/22397/head
Andy Wilkinson 4 years ago
parent 530a26731e 0e8bf94289
commit ef78d4bea8
4 changed files with 144 additions and 10 deletions
Show Stats Download Patch File Download Diff File

65
spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ServerProperties.java
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@ -1396,6 +1396,31 @@ public class ServerProperties {
*/
private Duration connectionTimeout;
/**
* Maximum content length of an H2C upgrade request.
*/
private DataSize h2cMaxContentLength = DataSize.ofBytes(0);
/**
* Initial buffer size for HTTP request decoding.
*/
private DataSize initialBufferSize = DataSize.ofBytes(128);
/**
* Maximum chunk size that can be decoded for an HTTP request.
*/
private DataSize maxChunkSize = DataSize.ofKilobytes(8);
/**
* Maximum length that can be decoded for an HTTP request's initial line.
*/
private DataSize maxInitialLineLength = DataSize.ofKilobytes(4);
/**
* Whether to validate headers when decoding requests.
*/
private boolean validateHeaders = true;
public Duration getConnectionTimeout() {
return this.connectionTimeout;
}
@ -1404,6 +1429,46 @@ public class ServerProperties {
this.connectionTimeout = connectionTimeout;
}
public DataSize getH2cMaxContentLength() {
return this.h2cMaxContentLength;
}
public void setH2cMaxContentLength(DataSize h2cMaxContentLength) {
this.h2cMaxContentLength = h2cMaxContentLength;
}
public DataSize getInitialBufferSize() {
return this.initialBufferSize;
}
public void setInitialBufferSize(DataSize initialBufferSize) {
this.initialBufferSize = initialBufferSize;
}
public DataSize getMaxChunkSize() {
return this.maxChunkSize;
}
public void setMaxChunkSize(DataSize maxChunkSize) {
this.maxChunkSize = maxChunkSize;
}
public DataSize getMaxInitialLineLength() {
return this.maxInitialLineLength;
}
public void setMaxInitialLineLength(DataSize maxInitialLineLength) {
this.maxInitialLineLength = maxInitialLineLength;
}
public boolean isValidateHeaders() {
return this.validateHeaders;
}
public void setValidateHeaders(boolean validateHeaders) {
this.validateHeaders = validateHeaders;
}
}
/**

31
spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/embedded/NettyWebServerFactoryCustomizer.java
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@ -27,7 +27,6 @@ import org.springframework.boot.web.embedded.netty.NettyReactiveWebServerFactory
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.core.Ordered;
import org.springframework.core.env.Environment;
import org.springframework.util.unit.DataSize;
/**
* Customization for Netty-specific features.
@ -58,11 +57,10 @@ public class NettyWebServerFactoryCustomizer
public void customize(NettyReactiveWebServerFactory factory) {
factory.setUseForwardHeaders(getOrDeduceUseForwardHeaders());
PropertyMapper propertyMapper = PropertyMapper.get().alwaysApplyingWhenNonNull();
propertyMapper.from(this.serverProperties::getMaxHttpHeaderSize)
.to((maxHttpRequestHeaderSize) -> customizeMaxHttpHeaderSize(factory, maxHttpRequestHeaderSize));
ServerProperties.Netty nettyProperties = this.serverProperties.getNetty();
propertyMapper.from(nettyProperties::getConnectionTimeout).whenNonNull()
.to((connectionTimeout) -> customizeConnectionTimeout(factory, connectionTimeout));
customizeRequestDecoder(factory, propertyMapper);
}
private boolean getOrDeduceUseForwardHeaders() {
@ -73,14 +71,31 @@ public class NettyWebServerFactoryCustomizer
return this.serverProperties.getForwardHeadersStrategy().equals(ServerProperties.ForwardHeadersStrategy.NATIVE);
}
private void customizeMaxHttpHeaderSize(NettyReactiveWebServerFactory factory, DataSize maxHttpHeaderSize) {
factory.addServerCustomizers((httpServer) -> httpServer.httpRequestDecoder(
(httpRequestDecoderSpec) -> httpRequestDecoderSpec.maxHeaderSize((int) maxHttpHeaderSize.toBytes())));
}
private void customizeConnectionTimeout(NettyReactiveWebServerFactory factory, Duration connectionTimeout) {
factory.addServerCustomizers((httpServer) -> httpServer.option(ChannelOption.CONNECT_TIMEOUT_MILLIS,
(int) connectionTimeout.toMillis()));
}
private void customizeRequestDecoder(NettyReactiveWebServerFactory factory, PropertyMapper propertyMapper) {
factory.addServerCustomizers((httpServer) -> httpServer.httpRequestDecoder((httpRequestDecoderSpec) -> {
propertyMapper.from(this.serverProperties.getMaxHttpHeaderSize()).whenNonNull()
.to((maxHttpRequestHeader) -> httpRequestDecoderSpec
.maxHeaderSize((int) maxHttpRequestHeader.toBytes()));
ServerProperties.Netty nettyProperties = this.serverProperties.getNetty();
propertyMapper.from(nettyProperties.getMaxChunkSize()).whenNonNull()
.to((maxChunkSize) -> httpRequestDecoderSpec.maxChunkSize((int) maxChunkSize.toBytes()));
propertyMapper.from(nettyProperties.getMaxInitialLineLength()).whenNonNull()
.to((maxInitialLineLength) -> httpRequestDecoderSpec
.maxInitialLineLength((int) maxInitialLineLength.toBytes()));
propertyMapper.from(nettyProperties.getH2cMaxContentLength()).whenNonNull()
.to((h2cMaxContentLength) -> httpRequestDecoderSpec
.h2cMaxContentLength((int) h2cMaxContentLength.toBytes()));
propertyMapper.from(nettyProperties.getInitialBufferSize()).whenNonNull().to(
(initialBufferSize) -> httpRequestDecoderSpec.initialBufferSize((int) initialBufferSize.toBytes()));
propertyMapper.from(nettyProperties.isValidateHeaders()).whenNonNull()
.to(httpRequestDecoderSpec::validateHeaders);
return httpRequestDecoderSpec;
}));
}
}

31
spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ServerPropertiesTests.java
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@ -43,6 +43,8 @@ import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.thread.ThreadPool;
import org.junit.jupiter.api.Test;
import reactor.netty.http.HttpDecoderSpec;
import reactor.netty.http.server.HttpRequestDecoderSpec;
import org.springframework.boot.autoconfigure.web.ServerProperties.Tomcat.Accesslog;
import org.springframework.boot.context.properties.bind.Bindable;
@ -533,6 +535,35 @@ class ServerPropertiesTests {
.isEqualTo(UndertowOptions.DEFAULT_MAX_ENTITY_SIZE);
}
@Test
void nettyMaxChunkSizeMatchesHttpDecoderSpecDefault() {
assertThat(this.properties.getNetty().getMaxChunkSize().toBytes())
.isEqualTo(HttpDecoderSpec.DEFAULT_MAX_CHUNK_SIZE);
}
@Test
void nettyMaxInitialLineLenghtMatchesHttpDecoderSpecDefault() {
assertThat(this.properties.getNetty().getMaxInitialLineLength().toBytes())
.isEqualTo(HttpDecoderSpec.DEFAULT_MAX_INITIAL_LINE_LENGTH);
}
@Test
void nettyValidateHeadersMatchesHttpDecoderSpecDefault() {
assertThat(this.properties.getNetty().isValidateHeaders()).isEqualTo(HttpDecoderSpec.DEFAULT_VALIDATE_HEADERS);
}
@Test
void nettyH2cMaxContentLengthMatchesHttpDecoderSpecDefault() {
assertThat(this.properties.getNetty().getH2cMaxContentLength().toBytes())
.isEqualTo(HttpRequestDecoderSpec.DEFAULT_H2C_MAX_CONTENT_LENGTH);
}
@Test
void nettyInitialBufferSizeMatchesHttpDecoderSpecDefault() {
assertThat(this.properties.getNetty().getInitialBufferSize().toBytes())
.isEqualTo(HttpDecoderSpec.DEFAULT_INITIAL_BUFFER_SIZE);
}
private Connector getDefaultConnector() throws Exception {
return new Connector(TomcatServletWebServerFactory.DEFAULT_PROTOCOL);
}

27
spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/embedded/NettyWebServerFactoryCustomizerTests.java
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@ -25,6 +25,7 @@ import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.MockitoAnnotations;
import reactor.netty.http.server.HttpRequestDecoderSpec;
import reactor.netty.http.server.HttpServer;
import org.springframework.boot.autoconfigure.web.ServerProperties;
@ -33,6 +34,7 @@ import org.springframework.boot.context.properties.source.ConfigurationPropertyS
import org.springframework.boot.web.embedded.netty.NettyReactiveWebServerFactory;
import org.springframework.boot.web.embedded.netty.NettyServerCustomizer;
import org.springframework.mock.env.MockEnvironment;
import org.springframework.util.unit.DataSize;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
@ -107,13 +109,34 @@ class NettyWebServerFactoryCustomizerTests {
verifyConnectionTimeout(factory, 1000);
}
@Test
void configureHttpRequestDecoder() {
ServerProperties.Netty nettyProperties = this.serverProperties.getNetty();
nettyProperties.setValidateHeaders(false);
nettyProperties.setInitialBufferSize(DataSize.ofBytes(512));
nettyProperties.setH2cMaxContentLength(DataSize.ofKilobytes(1));
nettyProperties.setMaxChunkSize(DataSize.ofKilobytes(16));
nettyProperties.setMaxInitialLineLength(DataSize.ofKilobytes(32));
NettyReactiveWebServerFactory factory = mock(NettyReactiveWebServerFactory.class);
this.customizer.customize(factory);
verify(factory, times(1)).addServerCustomizers(this.customizerCaptor.capture());
NettyServerCustomizer serverCustomizer = this.customizerCaptor.getValue();
HttpServer httpServer = serverCustomizer.apply(HttpServer.create());
HttpRequestDecoderSpec decoder = httpServer.configuration().decoder();
assertThat(decoder.validateHeaders()).isFalse();
assertThat(decoder.initialBufferSize()).isEqualTo(nettyProperties.getInitialBufferSize().toBytes());
assertThat(decoder.h2cMaxContentLength()).isEqualTo(nettyProperties.getH2cMaxContentLength().toBytes());
assertThat(decoder.maxChunkSize()).isEqualTo(nettyProperties.getMaxChunkSize().toBytes());
assertThat(decoder.maxInitialLineLength()).isEqualTo(nettyProperties.getMaxInitialLineLength().toBytes());
}
private void verifyConnectionTimeout(NettyReactiveWebServerFactory factory, Integer expected) {
if (expected == null) {
verify(factory, never()).addServerCustomizers(any(NettyServerCustomizer.class));
return;
}
verify(factory, times(1)).addServerCustomizers(this.customizerCaptor.capture());
NettyServerCustomizer serverCustomizer = this.customizerCaptor.getValue();
verify(factory, times(2)).addServerCustomizers(this.customizerCaptor.capture());
NettyServerCustomizer serverCustomizer = this.customizerCaptor.getAllValues().get(0);
HttpServer httpServer = serverCustomizer.apply(HttpServer.create());
Map<ChannelOption<?>, ?> options = httpServer.configuration().options();
assertThat(options.get(ChannelOption.CONNECT_TIMEOUT_MILLIS)).isEqualTo(expected);

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