| /* |
| * Copyright (C) 2012 Square, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.squareup.okhttp.internal.http; |
| |
| import com.squareup.okhttp.Address; |
| import com.squareup.okhttp.Authenticator; |
| import com.squareup.okhttp.ConnectionPool; |
| import com.squareup.okhttp.ConnectionSpec; |
| import com.squareup.okhttp.OkHttpClient; |
| import com.squareup.okhttp.Protocol; |
| import com.squareup.okhttp.Request; |
| import com.squareup.okhttp.Route; |
| import com.squareup.okhttp.internal.Internal; |
| import com.squareup.okhttp.internal.Network; |
| import com.squareup.okhttp.internal.RouteDatabase; |
| import com.squareup.okhttp.internal.SslContextBuilder; |
| import com.squareup.okhttp.internal.Util; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.Proxy; |
| import java.net.UnknownHostException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.NoSuchElementException; |
| import javax.net.SocketFactory; |
| import javax.net.ssl.HostnameVerifier; |
| import javax.net.ssl.HttpsURLConnection; |
| import javax.net.ssl.SSLContext; |
| import javax.net.ssl.SSLSocketFactory; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static java.net.Proxy.NO_PROXY; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| public final class RouteSelectorTest { |
| public final List<ConnectionSpec> connectionSpecs = Util.immutableList( |
| ConnectionSpec.MODERN_TLS, |
| ConnectionSpec.COMPATIBLE_TLS, |
| ConnectionSpec.CLEARTEXT); |
| |
| private static final int proxyAPort = 1001; |
| private static final String proxyAHost = "proxyA"; |
| private static final Proxy proxyA = |
| new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyAHost, proxyAPort)); |
| private static final int proxyBPort = 1002; |
| private static final String proxyBHost = "proxyB"; |
| private static final Proxy proxyB = |
| new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyBHost, proxyBPort)); |
| private String uriHost = "hostA"; |
| private int uriPort = 1003; |
| |
| private SocketFactory socketFactory; |
| private final SSLContext sslContext = SslContextBuilder.localhost(); |
| private final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory(); |
| private HostnameVerifier hostnameVerifier; |
| |
| private final Authenticator authenticator = AuthenticatorAdapter.INSTANCE; |
| private final List<Protocol> protocols = Arrays.asList(Protocol.HTTP_1_1); |
| private final FakeDns dns = new FakeDns(); |
| private final RecordingProxySelector proxySelector = new RecordingProxySelector(); |
| private OkHttpClient client; |
| private RouteDatabase routeDatabase; |
| private Request httpRequest; |
| private Request httpsRequest; |
| |
| @Before public void setUp() throws Exception { |
| socketFactory = SocketFactory.getDefault(); |
| hostnameVerifier = HttpsURLConnection.getDefaultHostnameVerifier(); |
| |
| client = new OkHttpClient() |
| .setAuthenticator(authenticator) |
| .setProxySelector(proxySelector) |
| .setSocketFactory(socketFactory) |
| .setSslSocketFactory(sslSocketFactory) |
| .setHostnameVerifier(hostnameVerifier) |
| .setProtocols(protocols) |
| .setConnectionSpecs(connectionSpecs) |
| .setConnectionPool(ConnectionPool.getDefault()); |
| Internal.instance.setNetwork(client, dns); |
| |
| routeDatabase = Internal.instance.routeDatabase(client); |
| |
| httpRequest = new Request.Builder() |
| .url("http://" + uriHost + ":" + uriPort + "/path") |
| .build(); |
| httpsRequest = new Request.Builder() |
| .url("https://" + uriHost + ":" + uriPort + "/path") |
| .build(); |
| } |
| |
| @Test public void singleRoute() throws Exception { |
| Address address = httpAddress(); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 1); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| dns.assertRequests(uriHost); |
| |
| assertFalse(routeSelector.hasNext()); |
| try { |
| routeSelector.next(); |
| fail(); |
| } catch (NoSuchElementException expected) { |
| } |
| } |
| |
| @Test public void singleRouteReturnsFailedRoute() throws Exception { |
| Address address = httpAddress(); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 1); |
| Route route = routeSelector.next(); |
| routeDatabase.failed(route); |
| routeSelector = RouteSelector.get(address, httpRequest, client); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| assertFalse(routeSelector.hasNext()); |
| try { |
| routeSelector.next(); |
| fail(); |
| } catch (NoSuchElementException expected) { |
| } |
| } |
| |
| @Test public void explicitProxyTriesThatProxysAddressesOnly() throws Exception { |
| Address address = new Address(uriHost, uriPort, socketFactory, null, null, null, authenticator, |
| proxyA, protocols, connectionSpecs, proxySelector); |
| client.setProxy(proxyA); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 2); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[0], proxyAPort); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[1], proxyAPort); |
| |
| assertFalse(routeSelector.hasNext()); |
| dns.assertRequests(proxyAHost); |
| proxySelector.assertRequests(); // No proxy selector requests! |
| } |
| |
| @Test public void explicitDirectProxy() throws Exception { |
| Address address = new Address(uriHost, uriPort, socketFactory, null, null, null, authenticator, |
| NO_PROXY, protocols, connectionSpecs, proxySelector); |
| client.setProxy(NO_PROXY); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 2); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[1], uriPort); |
| |
| assertFalse(routeSelector.hasNext()); |
| dns.assertRequests(uriHost); |
| proxySelector.assertRequests(); // No proxy selector requests! |
| } |
| |
| @Test public void proxySelectorReturnsNull() throws Exception { |
| Address address = httpAddress(); |
| |
| proxySelector.proxies = null; |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| proxySelector.assertRequests(httpRequest.uri()); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 1); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| dns.assertRequests(uriHost); |
| |
| assertFalse(routeSelector.hasNext()); |
| } |
| |
| @Test public void proxySelectorReturnsNoProxies() throws Exception { |
| Address address = httpAddress(); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 2); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[1], uriPort); |
| |
| assertFalse(routeSelector.hasNext()); |
| dns.assertRequests(uriHost); |
| proxySelector.assertRequests(httpRequest.uri()); |
| } |
| |
| @Test public void proxySelectorReturnsMultipleProxies() throws Exception { |
| Address address = httpAddress(); |
| |
| proxySelector.proxies.add(proxyA); |
| proxySelector.proxies.add(proxyB); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| proxySelector.assertRequests(httpRequest.uri()); |
| |
| // First try the IP addresses of the first proxy, in sequence. |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 2); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[0], proxyAPort); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[1], proxyAPort); |
| dns.assertRequests(proxyAHost); |
| |
| // Next try the IP address of the second proxy. |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(254, 1); |
| assertRoute(routeSelector.next(), address, proxyB, dns.inetAddresses[0], proxyBPort); |
| dns.assertRequests(proxyBHost); |
| |
| // Finally try the only IP address of the origin server. |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(253, 1); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| dns.assertRequests(uriHost); |
| |
| assertFalse(routeSelector.hasNext()); |
| } |
| |
| @Test public void proxySelectorDirectConnectionsAreSkipped() throws Exception { |
| Address address = httpAddress(); |
| |
| proxySelector.proxies.add(NO_PROXY); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| proxySelector.assertRequests(httpRequest.uri()); |
| |
| // Only the origin server will be attempted. |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 1); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| dns.assertRequests(uriHost); |
| |
| assertFalse(routeSelector.hasNext()); |
| } |
| |
| @Test public void proxyDnsFailureContinuesToNextProxy() throws Exception { |
| Address address = httpAddress(); |
| |
| proxySelector.proxies.add(proxyA); |
| proxySelector.proxies.add(proxyB); |
| proxySelector.proxies.add(proxyA); |
| RouteSelector routeSelector = RouteSelector.get(address, httpRequest, client); |
| proxySelector.assertRequests(httpRequest.uri()); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 1); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[0], proxyAPort); |
| dns.assertRequests(proxyAHost); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = null; |
| try { |
| routeSelector.next(); |
| fail(); |
| } catch (UnknownHostException expected) { |
| } |
| dns.assertRequests(proxyBHost); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(255, 1); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[0], proxyAPort); |
| dns.assertRequests(proxyAHost); |
| |
| assertTrue(routeSelector.hasNext()); |
| dns.inetAddresses = makeFakeAddresses(254, 1); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| dns.assertRequests(uriHost); |
| |
| assertFalse(routeSelector.hasNext()); |
| } |
| |
| @Test public void multipleProxiesMultipleInetAddressesMultipleConfigurations() throws Exception { |
| Address address = httpsAddress(); |
| proxySelector.proxies.add(proxyA); |
| proxySelector.proxies.add(proxyB); |
| RouteSelector routeSelector = RouteSelector.get(address, httpsRequest, client); |
| |
| // Proxy A |
| dns.inetAddresses = makeFakeAddresses(255, 2); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[0], proxyAPort); |
| dns.assertRequests(proxyAHost); |
| assertRoute(routeSelector.next(), address, proxyA, dns.inetAddresses[1], proxyAPort); |
| |
| // Proxy B |
| dns.inetAddresses = makeFakeAddresses(254, 2); |
| assertRoute(routeSelector.next(), address, proxyB, dns.inetAddresses[0], proxyBPort); |
| dns.assertRequests(proxyBHost); |
| assertRoute(routeSelector.next(), address, proxyB, dns.inetAddresses[1], proxyBPort); |
| |
| // Origin |
| dns.inetAddresses = makeFakeAddresses(253, 2); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[0], uriPort); |
| dns.assertRequests(uriHost); |
| assertRoute(routeSelector.next(), address, NO_PROXY, dns.inetAddresses[1], uriPort); |
| |
| assertFalse(routeSelector.hasNext()); |
| } |
| |
| @Test public void failedRoutesAreLast() throws Exception { |
| Address address = httpsAddress(); |
| client.setProxy(Proxy.NO_PROXY); |
| RouteSelector routeSelector = RouteSelector.get(address, httpsRequest, client); |
| |
| final int numberOfAddresses = 2; |
| dns.inetAddresses = makeFakeAddresses(255, numberOfAddresses); |
| |
| // Extract the regular sequence of routes from selector. |
| List<Route> regularRoutes = new ArrayList<>(); |
| while (routeSelector.hasNext()) { |
| regularRoutes.add(routeSelector.next()); |
| } |
| |
| // Check that we do indeed have more than one route. |
| assertEquals(numberOfAddresses, regularRoutes.size()); |
| // Add first regular route as failed. |
| routeDatabase.failed(regularRoutes.get(0)); |
| // Reset selector |
| routeSelector = RouteSelector.get(address, httpsRequest, client); |
| |
| List<Route> routesWithFailedRoute = new ArrayList<>(); |
| while (routeSelector.hasNext()) { |
| routesWithFailedRoute.add(routeSelector.next()); |
| } |
| |
| assertEquals(regularRoutes.get(0), |
| routesWithFailedRoute.get(routesWithFailedRoute.size() - 1)); |
| assertEquals(regularRoutes.size(), routesWithFailedRoute.size()); |
| } |
| |
| @Test public void getHostString() throws Exception { |
| // Name proxy specification. |
| InetSocketAddress socketAddress = InetSocketAddress.createUnresolved("host", 1234); |
| assertEquals("host", RouteSelector.getHostString(socketAddress)); |
| socketAddress = InetSocketAddress.createUnresolved("127.0.0.1", 1234); |
| assertEquals("127.0.0.1", RouteSelector.getHostString(socketAddress)); |
| |
| // InetAddress proxy specification. |
| socketAddress = new InetSocketAddress(InetAddress.getByName("localhost"), 1234); |
| assertEquals("127.0.0.1", RouteSelector.getHostString(socketAddress)); |
| socketAddress = new InetSocketAddress( |
| InetAddress.getByAddress(new byte[] { 127, 0, 0, 1 }), 1234); |
| assertEquals("127.0.0.1", RouteSelector.getHostString(socketAddress)); |
| socketAddress = new InetSocketAddress( |
| InetAddress.getByAddress("foobar", new byte[] { 127, 0, 0, 1 }), 1234); |
| assertEquals("127.0.0.1", RouteSelector.getHostString(socketAddress)); |
| } |
| |
| private void assertRoute(Route route, Address address, Proxy proxy, InetAddress socketAddress, |
| int socketPort) { |
| assertEquals(address, route.getAddress()); |
| assertEquals(proxy, route.getProxy()); |
| assertEquals(socketAddress, route.getSocketAddress().getAddress()); |
| assertEquals(socketPort, route.getSocketAddress().getPort()); |
| } |
| |
| /** Returns an address that's without an SSL socket factory or hostname verifier. */ |
| private Address httpAddress() { |
| return new Address(uriHost, uriPort, socketFactory, null, null, null, authenticator, null, |
| protocols, connectionSpecs, proxySelector); |
| } |
| |
| private Address httpsAddress() { |
| return new Address(uriHost, uriPort, socketFactory, sslSocketFactory, |
| hostnameVerifier, null, authenticator, null, protocols, connectionSpecs, proxySelector); |
| } |
| |
| private static InetAddress[] makeFakeAddresses(int prefix, int count) { |
| try { |
| InetAddress[] result = new InetAddress[count]; |
| for (int i = 0; i < count; i++) { |
| result[i] = |
| InetAddress.getByAddress(new byte[] { (byte) prefix, (byte) 0, (byte) 0, (byte) i }); |
| } |
| return result; |
| } catch (UnknownHostException e) { |
| throw new AssertionError(); |
| } |
| } |
| |
| private static class FakeDns implements Network { |
| List<String> requestedHosts = new ArrayList<>(); |
| InetAddress[] inetAddresses; |
| |
| @Override public InetAddress[] resolveInetAddresses(String host) throws UnknownHostException { |
| requestedHosts.add(host); |
| if (inetAddresses == null) throw new UnknownHostException(); |
| return inetAddresses; |
| } |
| |
| public void assertRequests(String... expectedHosts) { |
| assertEquals(Arrays.asList(expectedHosts), requestedHosts); |
| requestedHosts.clear(); |
| } |
| } |
| } |