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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.http.server.jetty;
import org.apache.hc.client5.http.SystemDefaultDnsResolver;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.classic.methods.HttpUriRequest;
import org.apache.hc.client5.http.entity.GzipCompressingEntity;
import org.apache.hc.client5.http.entity.mime.FormBodyPart;
import org.apache.hc.client5.http.entity.mime.MultipartEntityBuilder;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
import org.apache.hc.client5.http.ssl.DefaultHostnameVerifier;
import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactory;
import org.apache.hc.core5.http.ContentType;
import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.ParseException;
import org.apache.hc.core5.http.io.entity.ByteArrayEntity;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.io.entity.StringEntity;
import org.hamcrest.Matcher;
import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.net.InetAddress;
import java.net.URI;
import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.List;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.jupiter.api.Assertions.assertNotNull;
/**
* A simple http client for testing
*
* @author Simon Thoresen Hult
* @author bjorncs
*/
public class SimpleHttpClient implements AutoCloseable {
private final CloseableHttpClient delegate;
private final String scheme;
private final int listenPort;
public SimpleHttpClient(SSLContext sslContext, int listenPort, boolean useCompression) {
this(sslContext, null, null, listenPort, useCompression);
}
public SimpleHttpClient(SSLContext sslContext, List<String> enabledProtocols, List<String> enabledCiphers,
int listenPort, boolean useCompression) {
HttpClientBuilder builder = HttpClientBuilder.create()
.disableAutomaticRetries()
.disableConnectionState(); // Reuse SSL connection when client authentication is enabled
if (!useCompression) {
builder.disableContentCompression();
}
if (sslContext != null) {
SSLConnectionSocketFactory sslConnectionFactory = new SSLConnectionSocketFactory(
sslContext,
toArray(enabledProtocols),
toArray(enabledCiphers),
new DefaultHostnameVerifier());
PoolingHttpClientConnectionManager connManager = PoolingHttpClientConnectionManagerBuilder.create()
.setSSLSocketFactory(sslConnectionFactory)
.setDnsResolver(new SystemDefaultDnsResolver() {
@Override
public InetAddress[] resolve(String host) throws UnknownHostException {
// Returns single address instead of multiple (to avoid multiple connection attempts)
return new InetAddress[] { InetAddress.getByName(host) };
}
})
.build();
builder.setConnectionManager(connManager);
scheme = "https";
} else {
scheme = "http";
}
this.delegate = builder.build();
this.listenPort = listenPort;
}
private static String[] toArray(List<String> list) {
return list != null ? list.toArray(new String[0]) : null;
}
public URI newUri(final String path) {
return URI.create(scheme + "://localhost:" + listenPort + path);
}
public RequestExecutor newGet(String path) {
return newRequest(new HttpGet(newUri(path)));
}
public RequestExecutor newPost(String path) {
return newRequest(new HttpPost(newUri(path)));
}
public RequestExecutor newRequest(HttpUriRequest request) {
return new RequestExecutor().setRequest(request);
}
public ResponseValidator execute(HttpUriRequest request) throws IOException {
return newRequest(request).execute();
}
public ResponseValidator get(String path) throws IOException {
return newGet(path).execute();
}
@Override
public void close() throws IOException {
delegate.close();
}
public class RequestExecutor {
private HttpUriRequest request;
private HttpEntity entity;
public RequestExecutor setRequest(final HttpUriRequest request) {
this.request = request;
return this;
}
public RequestExecutor addHeader(final String name, final String value) {
this.request.addHeader(name, value);
return this;
}
public RequestExecutor setContent(final String content) {
this.entity = new StringEntity(content, StandardCharsets.UTF_8);
return this;
}
public RequestExecutor setGzipContent(String content) {
this.entity = new GzipCompressingEntity(new StringEntity(content, StandardCharsets.UTF_8));
return this;
}
public RequestExecutor setBinaryContent(final byte[] content) {
this.entity = new ByteArrayEntity(content, ContentType.DEFAULT_BINARY);
return this;
}
public RequestExecutor setMultipartContent(final FormBodyPart... parts) {
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
Arrays.stream(parts).forEach(part -> builder.addPart(part.getName(), part.getBody()));
this.entity = builder.build();
return this;
}
@SuppressWarnings("deprecation")
public ResponseValidator execute() throws IOException {
if (entity != null) {
request.setEntity(entity);
}
try (CloseableHttpResponse response = delegate.execute(request)){
return new ResponseValidator(response);
}
}
}
public static class ResponseValidator {
private final HttpResponse response;
private final String content;
public ResponseValidator(CloseableHttpResponse response) throws IOException {
try {
this.response = response;
HttpEntity entity = response.getEntity();
this.content = entity == null ? null : EntityUtils.toString(entity, StandardCharsets.UTF_8);
} catch (ParseException e) {
throw new IOException(e);
}
}
public ResponseValidator expectStatusCode(Matcher<Integer> matcher) {
assertThat(response.getCode(), matcher);
return this;
}
public void expectHeader(String headerName, Matcher<String> matcher) {
Header firstHeader = response.getFirstHeader(headerName);
String headerValue = firstHeader != null ? firstHeader.getValue() : null;
assertThat(headerValue, matcher);
assertNotNull(firstHeader);
}
public void expectNoHeader(String headerName) {
Header firstHeader = response.getFirstHeader(headerName);
assertThat(firstHeader, is(nullValue()));
}
public ResponseValidator expectContent(final Matcher<String> matcher) {
assertThat(content, matcher);
return this;
}
}
}
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