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Apache License
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/*
* Copyright (C) 2012 Google 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.google.mockwebserver;
/**
* Handler for mock server requests.
*/
public abstract class Dispatcher {
/**
* Returns a response to satisfy {@code request}. This method may block (for
* instance, to wait on a CountdownLatch).
*/
public abstract MockResponse dispatch(RecordedRequest request) throws InterruptedException;
/**
* Returns the socket policy of the next request. Default implementation
* returns {@link SocketPolicy#KEEP_OPEN}. Mischievous implementations can
* return other values to test HTTP edge cases.
*/
public SocketPolicy peekSocketPolicy() {
return SocketPolicy.KEEP_OPEN;
}
}

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/*
* Copyright (C) 2011 Google 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.google.mockwebserver;
import static com.google.mockwebserver.MockWebServer.ASCII;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* A scripted response to be replayed by the mock web server.
*/
public final class MockResponse implements Cloneable {
private static final String CHUNKED_BODY_HEADER = "Transfer-encoding: chunked";
private String status = "HTTP/1.1 200 OK";
private List<String> headers = new ArrayList<String>();
/** The response body content, or null if {@code bodyStream} is set. */
private byte[] body;
/** The response body content, or null if {@code body} is set. */
private InputStream bodyStream;
private int bytesPerSecond = Integer.MAX_VALUE;
private SocketPolicy socketPolicy = SocketPolicy.KEEP_OPEN;
/**
* Creates a new mock response with an empty body.
*/
public MockResponse() {
setBody(new byte[0]);
}
@Override public MockResponse clone() {
try {
MockResponse result = (MockResponse) super.clone();
result.headers = new ArrayList<String>(result.headers);
return result;
} catch (CloneNotSupportedException e) {
throw new AssertionError();
}
}
/**
* Returns the HTTP response line, such as "HTTP/1.1 200 OK".
*/
public String getStatus() {
return status;
}
public MockResponse setResponseCode(int code) {
this.status = "HTTP/1.1 " + code + " OK";
return this;
}
public MockResponse setStatus(String status) {
this.status = status;
return this;
}
/**
* Returns the HTTP headers, such as "Content-Length: 0".
*/
public List<String> getHeaders() {
return headers;
}
/**
* Removes all HTTP headers including any "Content-Length" and
* "Transfer-encoding" headers that were added by default.
*/
public MockResponse clearHeaders() {
headers.clear();
return this;
}
/**
* Adds {@code header} as an HTTP header. For well-formed HTTP {@code
* header} should contain a name followed by a colon and a value.
*/
public MockResponse addHeader(String header) {
headers.add(header);
return this;
}
/**
* Adds a new header with the name and value. This may be used to add
* multiple headers with the same name.
*/
public MockResponse addHeader(String name, Object value) {
return addHeader(name + ": " + String.valueOf(value));
}
/**
* Removes all headers named {@code name}, then adds a new header with the
* name and value.
*/
public MockResponse setHeader(String name, Object value) {
removeHeader(name);
return addHeader(name, value);
}
/**
* Removes all headers named {@code name}.
*/
public MockResponse removeHeader(String name) {
name += ":";
for (Iterator<String> i = headers.iterator(); i.hasNext(); ) {
String header = i.next();
if (name.regionMatches(true, 0, header, 0, name.length())) {
i.remove();
}
}
return this;
}
/**
* Returns the raw HTTP payload, or null if this response is streamed.
*/
public byte[] getBody() {
return body;
}
/**
* Returns an input stream containing the raw HTTP payload.
*/
InputStream getBodyStream() {
return bodyStream != null ? bodyStream : new ByteArrayInputStream(body);
}
public MockResponse setBody(byte[] body) {
setHeader("Content-Length", body.length);
this.body = body;
this.bodyStream = null;
return this;
}
public MockResponse setBody(InputStream bodyStream, long bodyLength) {
setHeader("Content-Length", bodyLength);
this.body = null;
this.bodyStream = bodyStream;
return this;
}
/**
* Sets the response body to the UTF-8 encoded bytes of {@code body}.
*/
public MockResponse setBody(String body) {
try {
return setBody(body.getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
throw new AssertionError();
}
}
/**
* Sets the response body to {@code body}, chunked every {@code
* maxChunkSize} bytes.
*/
public MockResponse setChunkedBody(byte[] body, int maxChunkSize) {
removeHeader("Content-Length");
headers.add(CHUNKED_BODY_HEADER);
try {
ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
int pos = 0;
while (pos < body.length) {
int chunkSize = Math.min(body.length - pos, maxChunkSize);
bytesOut.write(Integer.toHexString(chunkSize).getBytes(ASCII));
bytesOut.write("\r\n".getBytes(ASCII));
bytesOut.write(body, pos, chunkSize);
bytesOut.write("\r\n".getBytes(ASCII));
pos += chunkSize;
}
bytesOut.write("0\r\n\r\n".getBytes(ASCII)); // last chunk + empty trailer + crlf
this.body = bytesOut.toByteArray();
return this;
} catch (IOException e) {
throw new AssertionError(); // In-memory I/O doesn't throw IOExceptions.
}
}
/**
* Sets the response body to the UTF-8 encoded bytes of {@code body},
* chunked every {@code maxChunkSize} bytes.
*/
public MockResponse setChunkedBody(String body, int maxChunkSize) {
try {
return setChunkedBody(body.getBytes("UTF-8"), maxChunkSize);
} catch (UnsupportedEncodingException e) {
throw new AssertionError();
}
}
public SocketPolicy getSocketPolicy() {
return socketPolicy;
}
public MockResponse setSocketPolicy(SocketPolicy socketPolicy) {
this.socketPolicy = socketPolicy;
return this;
}
public int getBytesPerSecond() {
return bytesPerSecond;
}
/**
* Set simulated network speed, in bytes per second. This applies to the
* response body only; response headers are not throttled.
*/
public MockResponse setBytesPerSecond(int bytesPerSecond) {
this.bytesPerSecond = bytesPerSecond;
return this;
}
@Override public String toString() {
return status;
}
}

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/*
* Copyright (C) 2011 Google 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.google.mockwebserver;
import static com.google.mockwebserver.SocketPolicy.DISCONNECT_AT_START;
import static com.google.mockwebserver.SocketPolicy.FAIL_HANDSHAKE;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.net.URL;
import java.net.UnknownHostException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
/**
* A scriptable web server. Callers supply canned responses and the server
* replays them upon request in sequence.
*/
public final class MockWebServer {
static final String ASCII = "US-ASCII";
private static final Logger logger = Logger.getLogger(MockWebServer.class.getName());
private final BlockingQueue<RecordedRequest> requestQueue
= new LinkedBlockingQueue<RecordedRequest>();
/** All map values are Boolean.TRUE. (Collections.newSetFromMap isn't available in Froyo) */
private final Map<Socket, Boolean> openClientSockets = new ConcurrentHashMap<Socket, Boolean>();
private final AtomicInteger requestCount = new AtomicInteger();
private int bodyLimit = Integer.MAX_VALUE;
private ServerSocket serverSocket;
private SSLSocketFactory sslSocketFactory;
private ExecutorService executor;
private boolean tunnelProxy;
private Dispatcher dispatcher = new QueueDispatcher();
private int port = -1;
public int getPort() {
if (port == -1) {
throw new IllegalStateException("Cannot retrieve port before calling play()");
}
return port;
}
public String getHostName() {
try {
return InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
throw new AssertionError(e);
}
}
public Proxy toProxyAddress() {
return new Proxy(Proxy.Type.HTTP, new InetSocketAddress(getHostName(), getPort()));
}
/**
* Returns a URL for connecting to this server.
*
* @param path the request path, such as "/".
*/
public URL getUrl(String path) {
try {
return sslSocketFactory != null
? new URL("https://" + getHostName() + ":" + getPort() + path)
: new URL("http://" + getHostName() + ":" + getPort() + path);
} catch (MalformedURLException e) {
throw new AssertionError(e);
}
}
/**
* Returns a cookie domain for this server. This returns the server's
* non-loopback host name if it is known. Otherwise this returns ".local"
* for this server's loopback name.
*/
public String getCookieDomain() {
String hostName = getHostName();
return hostName.contains(".") ? hostName : ".local";
}
/**
* Sets the number of bytes of the POST body to keep in memory to the given
* limit.
*/
public void setBodyLimit(int maxBodyLength) {
this.bodyLimit = maxBodyLength;
}
/**
* Serve requests with HTTPS rather than otherwise.
*
* @param tunnelProxy whether to expect the HTTP CONNECT method before
* negotiating TLS.
*/
public void useHttps(SSLSocketFactory sslSocketFactory, boolean tunnelProxy) {
this.sslSocketFactory = sslSocketFactory;
this.tunnelProxy = tunnelProxy;
}
/**
* Awaits the next HTTP request, removes it, and returns it. Callers should
* use this to verify the request sent was as intended.
*/
public RecordedRequest takeRequest() throws InterruptedException {
return requestQueue.take();
}
/**
* Returns the number of HTTP requests received thus far by this server.
* This may exceed the number of HTTP connections when connection reuse is
* in practice.
*/
public int getRequestCount() {
return requestCount.get();
}
/**
* Scripts {@code response} to be returned to a request made in sequence.
* The first request is served by the first enqueued response; the second
* request by the second enqueued response; and so on.
*
* @throws ClassCastException if the default dispatcher has been replaced
* with {@link #setDispatcher(Dispatcher)}.
*/
public void enqueue(MockResponse response) {
((QueueDispatcher) dispatcher).enqueueResponse(response.clone());
}
/**
* Equivalent to {@code play(0)}.
*/
public void play() throws IOException {
play(0);
}
/**
* Starts the server, serves all enqueued requests, and shuts the server
* down.
*
* @param port the port to listen to, or 0 for any available port.
* Automated tests should always use port 0 to avoid flakiness when a
* specific port is unavailable.
*/
public void play(int port) throws IOException {
if (executor != null) {
throw new IllegalStateException("play() already called");
}
executor = Executors.newCachedThreadPool();
serverSocket = new ServerSocket(port);
serverSocket.setReuseAddress(true);
this.port = serverSocket.getLocalPort();
executor.execute(namedRunnable("MockWebServer-accept-" + port, new Runnable() {
public void run() {
try {
acceptConnections();
} catch (Throwable e) {
logger.log(Level.WARNING, "MockWebServer connection failed", e);
}
/*
* This gnarly block of code will release all sockets and
* all thread, even if any close fails.
*/
try {
serverSocket.close();
} catch (Throwable e) {
logger.log(Level.WARNING, "MockWebServer server socket close failed", e);
}
for (Iterator<Socket> s = openClientSockets.keySet().iterator(); s.hasNext(); ) {
try {
s.next().close();
s.remove();
} catch (Throwable e) {
logger.log(Level.WARNING, "MockWebServer socket close failed", e);
}
}
try {
executor.shutdown();
} catch (Throwable e) {
logger.log(Level.WARNING, "MockWebServer executor shutdown failed", e);
}
}
private void acceptConnections() throws Exception {
while (true) {
Socket socket;
try {
socket = serverSocket.accept();
} catch (SocketException e) {
return;
}
final SocketPolicy socketPolicy = dispatcher.peekSocketPolicy();
if (socketPolicy == DISCONNECT_AT_START) {
dispatchBookkeepingRequest(0, socket);
socket.close();
} else {
openClientSockets.put(socket, true);
serveConnection(socket);
}
}
}
}));
}
public void shutdown() throws IOException {
if (serverSocket != null) {
serverSocket.close(); // should cause acceptConnections() to break out
}
}
private void serveConnection(final Socket raw) {
String name = "MockWebServer-" + raw.getRemoteSocketAddress();
executor.execute(namedRunnable(name, new Runnable() {
int sequenceNumber = 0;
public void run() {
try {
processConnection();
} catch (Exception e) {
logger.log(Level.WARNING, "MockWebServer connection failed", e);
}
}
public void processConnection() throws Exception {
Socket socket;
if (sslSocketFactory != null) {
if (tunnelProxy) {
createTunnel();
}
final SocketPolicy socketPolicy = dispatcher.peekSocketPolicy();
if (socketPolicy == FAIL_HANDSHAKE) {
dispatchBookkeepingRequest(sequenceNumber, raw);
processHandshakeFailure(raw, sequenceNumber++);
return;
}
socket = sslSocketFactory.createSocket(
raw, raw.getInetAddress().getHostAddress(), raw.getPort(), true);
((SSLSocket) socket).setUseClientMode(false);
openClientSockets.put(socket, true);
openClientSockets.remove(raw);
} else {
socket = raw;
}
InputStream in = new BufferedInputStream(socket.getInputStream());
OutputStream out = new BufferedOutputStream(socket.getOutputStream());
while (processOneRequest(socket, in, out)) {
}
if (sequenceNumber == 0) {
logger.warning("MockWebServer connection didn't make a request");
}
in.close();
out.close();
socket.close();
openClientSockets.remove(socket);
}
/**
* Respond to CONNECT requests until a SWITCH_TO_SSL_AT_END response
* is dispatched.
*/
private void createTunnel() throws IOException, InterruptedException {
while (true) {
final SocketPolicy socketPolicy = dispatcher.peekSocketPolicy();
if (!processOneRequest(raw, raw.getInputStream(), raw.getOutputStream())) {
throw new IllegalStateException("Tunnel without any CONNECT!");
}
if (socketPolicy == SocketPolicy.UPGRADE_TO_SSL_AT_END) {
return;
}
}
}
/**
* Reads a request and writes its response. Returns true if a request
* was processed.
*/
private boolean processOneRequest(Socket socket, InputStream in, OutputStream out)
throws IOException, InterruptedException {
RecordedRequest request = readRequest(socket, in, out, sequenceNumber);
if (request == null) {
return false;
}
requestCount.incrementAndGet();
requestQueue.add(request);
MockResponse response = dispatcher.dispatch(request);
writeResponse(out, response);
if (response.getSocketPolicy() == SocketPolicy.DISCONNECT_AT_END) {
in.close();
out.close();
} else if (response.getSocketPolicy() == SocketPolicy.SHUTDOWN_INPUT_AT_END) {
socket.shutdownInput();
} else if (response.getSocketPolicy() == SocketPolicy.SHUTDOWN_OUTPUT_AT_END) {
socket.shutdownOutput();
}
logger.info("Received request: " + request + " and responded: " + response);
sequenceNumber++;
return true;
}
}));
}
private void processHandshakeFailure(Socket raw, int sequenceNumber) throws Exception {
X509TrustManager untrusted = new X509TrustManager() {
@Override public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
throw new CertificateException();
}
@Override public void checkServerTrusted(X509Certificate[] chain, String authType) {
throw new AssertionError();
}
@Override public X509Certificate[] getAcceptedIssuers() {
throw new AssertionError();
}
};
SSLContext context = SSLContext.getInstance("TLS");
context.init(null, new TrustManager[] { untrusted }, new java.security.SecureRandom());
SSLSocketFactory sslSocketFactory = context.getSocketFactory();
SSLSocket socket = (SSLSocket) sslSocketFactory.createSocket(
raw, raw.getInetAddress().getHostAddress(), raw.getPort(), true);
try {
socket.startHandshake(); // we're testing a handshake failure
throw new AssertionError();
} catch (IOException expected) {
}
socket.close();
}
private void dispatchBookkeepingRequest(int sequenceNumber, Socket socket) throws InterruptedException {
requestCount.incrementAndGet();
dispatcher.dispatch(new RecordedRequest(null, null, null, -1, null, sequenceNumber, socket));
}
/**
* @param sequenceNumber the index of this request on this connection.
*/
private RecordedRequest readRequest(Socket socket, InputStream in, OutputStream out, int sequenceNumber)
throws IOException {
String request;
try {
request = readAsciiUntilCrlf(in);
} catch (IOException streamIsClosed) {
return null; // no request because we closed the stream
}
if (request.length() == 0) {
return null; // no request because the stream is exhausted
}
List<String> headers = new ArrayList<String>();
long contentLength = -1;
boolean chunked = false;
boolean expectContinue = false;
String header;
while ((header = readAsciiUntilCrlf(in)).length() != 0) {
headers.add(header);
String lowercaseHeader = header.toLowerCase();
if (contentLength == -1 && lowercaseHeader.startsWith("content-length:")) {
contentLength = Long.parseLong(header.substring(15).trim());
}
if (lowercaseHeader.startsWith("transfer-encoding:") &&
lowercaseHeader.substring(18).trim().equals("chunked")) {
chunked = true;
}
if (lowercaseHeader.startsWith("expect:") &&
lowercaseHeader.substring(7).trim().equals("100-continue")) {
expectContinue = true;
}
}
if (expectContinue) {
out.write(("HTTP/1.1 100 Continue\r\n").getBytes(ASCII));
out.write(("Content-Length: 0\r\n").getBytes(ASCII));
out.write(("\r\n").getBytes(ASCII));
out.flush();
}
boolean hasBody = false;
TruncatingOutputStream requestBody = new TruncatingOutputStream();
List<Integer> chunkSizes = new ArrayList<Integer>();
if (contentLength != -1) {
hasBody = true;
transfer(contentLength, in, requestBody);
} else if (chunked) {
hasBody = true;
while (true) {
int chunkSize = Integer.parseInt(readAsciiUntilCrlf(in).trim(), 16);
if (chunkSize == 0) {
readEmptyLine(in);
break;
}
chunkSizes.add(chunkSize);
transfer(chunkSize, in, requestBody);
readEmptyLine(in);
}
}
if (request.startsWith("OPTIONS ") || request.startsWith("GET ")
|| request.startsWith("HEAD ") || request.startsWith("DELETE ")
|| request.startsWith("TRACE ") || request.startsWith("CONNECT ")) {
if (hasBody) {
throw new IllegalArgumentException("Request must not have a body: " + request);
}
} else if (!request.startsWith("POST ") && !request.startsWith("PUT ")) {
throw new UnsupportedOperationException("Unexpected method: " + request);
}
return new RecordedRequest(request, headers, chunkSizes,
requestBody.numBytesReceived, requestBody.toByteArray(), sequenceNumber, socket);
}
private void writeResponse(OutputStream out, MockResponse response) throws IOException {
out.write((response.getStatus() + "\r\n").getBytes(ASCII));
for (String header : response.getHeaders()) {
out.write((header + "\r\n").getBytes(ASCII));
}
out.write(("\r\n").getBytes(ASCII));
out.flush();
final InputStream in = response.getBodyStream();
if (in == null) {
return;
}
final int bytesPerSecond = response.getBytesPerSecond();
// Stream data in MTU-sized increments, with a minimum of one packet per second.
final byte[] buffer = bytesPerSecond >= 1452
? new byte[1452]
: new byte[bytesPerSecond];
final long delayMs;
if (bytesPerSecond == Integer.MAX_VALUE) {
delayMs = 0;
} else {
delayMs = (1000 * buffer.length) / bytesPerSecond;
}
int read;
long sinceDelay = 0;
while ((read = in.read(buffer)) != -1) {
out.write(buffer, 0, read);
out.flush();
sinceDelay += read;
if (sinceDelay >= buffer.length && delayMs > 0) {
sinceDelay %= buffer.length;
try {
Thread.sleep(delayMs);
} catch (InterruptedException e) {
throw new AssertionError();
}
}
}
}
/**
* Transfer bytes from {@code in} to {@code out} until either {@code length}
* bytes have been transferred or {@code in} is exhausted.
*/
private void transfer(long length, InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
while (length > 0) {
int count = in.read(buffer, 0, (int) Math.min(buffer.length, length));
if (count == -1) {
return;
}
out.write(buffer, 0, count);
length -= count;
}
}
/**
* Returns the text from {@code in} until the next "\r\n", or null if
* {@code in} is exhausted.
*/
private String readAsciiUntilCrlf(InputStream in) throws IOException {
StringBuilder builder = new StringBuilder();
while (true) {
int c = in.read();
if (c == '\n' && builder.length() > 0 && builder.charAt(builder.length() - 1) == '\r') {
builder.deleteCharAt(builder.length() - 1);
return builder.toString();
} else if (c == -1) {
return builder.toString();
} else {
builder.append((char) c);
}
}
}
private void readEmptyLine(InputStream in) throws IOException {
String line = readAsciiUntilCrlf(in);
if (line.length() != 0) {
throw new IllegalStateException("Expected empty but was: " + line);
}
}
/**
* Sets the dispatcher used to match incoming requests to mock responses.
* The default dispatcher simply serves a fixed sequence of responses from
* a {@link #enqueue(MockResponse) queue}; custom dispatchers can vary the
* response based on timing or the content of the request.
*/
public void setDispatcher(Dispatcher dispatcher) {
if (dispatcher == null) {
throw new NullPointerException();
}
this.dispatcher = dispatcher;
}
/**
* An output stream that drops data after bodyLimit bytes.
*/
private class TruncatingOutputStream extends ByteArrayOutputStream {
private long numBytesReceived = 0;
@Override public void write(byte[] buffer, int offset, int len) {
numBytesReceived += len;
super.write(buffer, offset, Math.min(len, bodyLimit - count));
}
@Override public void write(int oneByte) {
numBytesReceived++;
if (count < bodyLimit) {
super.write(oneByte);
}
}
}
private static Runnable namedRunnable(final String name, final Runnable runnable) {
return new Runnable() {
public void run() {
String originalName = Thread.currentThread().getName();
Thread.currentThread().setName(name);
try {
runnable.run();
} finally {
Thread.currentThread().setName(originalName);
}
}
};
}
}

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/*
* Copyright (C) 2012 Google 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.google.mockwebserver;
import java.net.HttpURLConnection;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
/**
* Default dispatcher that processes a script of responses. Populate the script by calling
* {@link #enqueueResponse(MockResponse)}.
*/
public class QueueDispatcher extends Dispatcher {
protected final BlockingQueue<MockResponse> responseQueue
= new LinkedBlockingQueue<MockResponse>();
private MockResponse failFastResponse;
@Override public MockResponse dispatch(RecordedRequest request) throws InterruptedException {
// to permit interactive/browser testing, ignore requests for favicons
final String requestLine = request.getRequestLine();
if (requestLine != null && requestLine.equals("GET /favicon.ico HTTP/1.1")) {
System.out.println("served " + requestLine);
return new MockResponse()
.setResponseCode(HttpURLConnection.HTTP_NOT_FOUND);
}
if (failFastResponse != null && responseQueue.peek() == null) {
// Fail fast if there's no response queued up.
return failFastResponse;
}
return responseQueue.take();
}
@Override public SocketPolicy peekSocketPolicy() {
MockResponse peek = responseQueue.peek();
if (peek == null) {
return failFastResponse != null
? failFastResponse.getSocketPolicy()
: SocketPolicy.KEEP_OPEN;
}
return peek.getSocketPolicy();
}
public void enqueueResponse(MockResponse response) {
responseQueue.add(response);
}
public void setFailFast(boolean failFast) {
MockResponse failFastResponse = failFast
? new MockResponse().setResponseCode(HttpURLConnection.HTTP_NOT_FOUND)
: null;
setFailFast(failFastResponse);
}
public void setFailFast(MockResponse failFastResponse) {
this.failFastResponse = failFastResponse;
}
}

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/*
* Copyright (C) 2011 Google 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.google.mockwebserver;
import java.io.UnsupportedEncodingException;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
import javax.net.ssl.SSLSocket;
/**
* An HTTP request that came into the mock web server.
*/
public final class RecordedRequest {
private final String requestLine;
private final String method;
private final String path;
private final List<String> headers;
private final List<Integer> chunkSizes;
private final long bodySize;
private final byte[] body;
private final int sequenceNumber;
private final String sslProtocol;
public RecordedRequest(String requestLine, List<String> headers, List<Integer> chunkSizes,
long bodySize, byte[] body, int sequenceNumber, Socket socket) {
this.requestLine = requestLine;
this.headers = headers;
this.chunkSizes = chunkSizes;
this.bodySize = bodySize;
this.body = body;
this.sequenceNumber = sequenceNumber;
if (socket instanceof SSLSocket) {
SSLSocket sslSocket = (SSLSocket) socket;
sslProtocol = sslSocket.getSession().getProtocol();
} else {
sslProtocol = null;
}
if (requestLine != null) {
int methodEnd = requestLine.indexOf(' ');
int pathEnd = requestLine.indexOf(' ', methodEnd + 1);
this.method = requestLine.substring(0, methodEnd);
this.path = requestLine.substring(methodEnd + 1, pathEnd);
} else {
this.method = null;
this.path = null;
}
}
public String getRequestLine() {
return requestLine;
}
public String getMethod() {
return method;
}
public String getPath() {
return path;
}
/**
* Returns all headers.
*/
public List<String> getHeaders() {
return headers;
}
/**
* Returns the first header named {@code name}, or null if no such header
* exists.
*/
public String getHeader(String name) {
name += ":";
for (String header : headers) {
if (name.regionMatches(true, 0, header, 0, name.length())) {
return header.substring(name.length()).trim();
}
}
return null;
}
/**
* Returns the headers named {@code name}.
*/
public List<String> getHeaders(String name) {
List<String> result = new ArrayList<String>();
name += ":";
for (String header : headers) {
if (name.regionMatches(true, 0, header, 0, name.length())) {
result.add(header.substring(name.length()).trim());
}
}
return result;
}
/**
* Returns the sizes of the chunks of this request's body, or an empty list
* if the request's body was empty or unchunked.
*/
public List<Integer> getChunkSizes() {
return chunkSizes;
}
/**
* Returns the total size of the body of this POST request (before
* truncation).
*/
public long getBodySize() {
return bodySize;
}
/**
* Returns the body of this POST request. This may be truncated.
*/
public byte[] getBody() {
return body;
}
/**
* Returns the body of this POST request decoded as a UTF-8 string.
*/
public String getUtf8Body() {
try {
return new String(body, "UTF-8");
} catch (UnsupportedEncodingException e) {
throw new AssertionError();
}
}
/**
* Returns the index of this request on its HTTP connection. Since a single
* HTTP connection may serve multiple requests, each request is assigned its
* own sequence number.
*/
public int getSequenceNumber() {
return sequenceNumber;
}
/**
* Returns the connection's SSL protocol like {@code TLSv1}, {@code SSLv3},
* {@code NONE} or null if the connection doesn't use SSL.
*/
public String getSslProtocol() {
return sslProtocol;
}
@Override public String toString() {
return requestLine;
}
}

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/*
* Copyright (C) 2011 Google 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.google.mockwebserver;
/**
* What should be done with the incoming socket.
*/
public enum SocketPolicy {
/**
* Keep the socket open after the response. This is the default HTTP/1.1
* behavior.
*/
KEEP_OPEN,
/**
* Close the socket after the response. This is the default HTTP/1.0
* behavior.
*/
DISCONNECT_AT_END,
/**
* Wrap the socket with SSL at the completion of this request/response
* pair. Used for CONNECT messages to tunnel SSL over an HTTP proxy.
*/
UPGRADE_TO_SSL_AT_END,
/**
* Request immediate close of connection without even reading the
* request.
*
* <p>Use to simulate the real life case of losing connection
* because of bugger SSL server close connection when it seems
* something like a compression method or TLS extension it doesn't
* understand, instead of simply ignoring it like it should.
*/
DISCONNECT_AT_START,
/**
* Don't trust the client during the SSL handshake.
*/
FAIL_HANDSHAKE,
/**
* Shutdown the socket input after sending the response. For testing bad
* behavior.
*/
SHUTDOWN_INPUT_AT_END,
/**
* Shutdown the socket output after sending the response. For testing bad
* behavior.
*/
SHUTDOWN_OUTPUT_AT_END
}

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/*
* Copyright (C) 2012 Google 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.google.mockwebserver;
import junit.framework.TestCase;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicInteger;
public class CustomDispatcherTest extends TestCase {
private MockWebServer mockWebServer = new MockWebServer();
@Override
public void tearDown() throws Exception {
mockWebServer.shutdown();
}
public void testSimpleDispatch() throws Exception {
mockWebServer.play();
final List<RecordedRequest> requestsMade = new ArrayList<RecordedRequest>();
final Dispatcher dispatcher = new Dispatcher() {
@Override
public MockResponse dispatch(RecordedRequest request) throws InterruptedException {
requestsMade.add(request);
return new MockResponse();
}
};
assertEquals(0, requestsMade.size());
mockWebServer.setDispatcher(dispatcher);
final URL url = mockWebServer.getUrl("/");
final HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.getResponseCode(); // Force the connection to hit the "server".
// Make sure our dispatcher got the request.
assertEquals(1, requestsMade.size());
}
public void testOutOfOrderResponses() throws Exception {
AtomicInteger firstResponseCode = new AtomicInteger();
AtomicInteger secondResponseCode = new AtomicInteger();
mockWebServer.play();
final String secondRequest = "/bar";
final String firstRequest = "/foo";
final CountDownLatch latch = new CountDownLatch(1);
final Dispatcher dispatcher = new Dispatcher() {
@Override
public MockResponse dispatch(RecordedRequest request) throws InterruptedException {
if (request.getPath().equals(firstRequest)) {
latch.await();
}
return new MockResponse();
}
};
mockWebServer.setDispatcher(dispatcher);
final Thread startsFirst = buildRequestThread(firstRequest, firstResponseCode);
startsFirst.start();
final Thread endsFirst = buildRequestThread(secondRequest, secondResponseCode);
endsFirst.start();
endsFirst.join();
assertEquals(0, firstResponseCode.get()); // First response is still waiting.
assertEquals(200, secondResponseCode.get()); // Second response is done.
latch.countDown();
startsFirst.join();
assertEquals(200, firstResponseCode.get()); // And now it's done!
assertEquals(200, secondResponseCode.get()); // (Still done).
}
private Thread buildRequestThread(final String path, final AtomicInteger responseCode) {
return new Thread(new Runnable() {
@Override public void run() {
final URL url = mockWebServer.getUrl(path);
final HttpURLConnection conn;
try {
conn = (HttpURLConnection) url.openConnection();
responseCode.set(conn.getResponseCode()); // Force the connection to hit the "server".
} catch (IOException e) {
}
}
});
}
}

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/*
* Copyright (C) 2011 Google 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.google.mockwebserver;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLConnection;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import junit.framework.TestCase;
public final class MockWebServerTest extends TestCase {
private MockWebServer server = new MockWebServer();
@Override protected void tearDown() throws Exception {
server.shutdown();
super.tearDown();
}
public void testRecordedRequestAccessors() {
List<String> headers = Arrays.asList(
"User-Agent: okhttp",
"Cookie: s=square",
"Cookie: a=android",
"X-Whitespace: left",
"X-Whitespace:right ",
"X-Whitespace: both "
);
List<Integer> chunkSizes = Collections.emptyList();
byte[] body = {'A', 'B', 'C'};
String requestLine = "GET / HTTP/1.1";
RecordedRequest request = new RecordedRequest(
requestLine, headers, chunkSizes, body.length, body, 0, null);
assertEquals("s=square", request.getHeader("cookie"));
assertEquals(Arrays.asList("s=square", "a=android"), request.getHeaders("cookie"));
assertEquals("left", request.getHeader("x-whitespace"));
assertEquals(Arrays.asList("left", "right", "both"), request.getHeaders("x-whitespace"));
assertEquals("ABC", request.getUtf8Body());
}
public void testDefaultMockResponse() {
MockResponse response = new MockResponse();
assertEquals(Arrays.asList("Content-Length: 0"), response.getHeaders());
assertEquals("HTTP/1.1 200 OK", response.getStatus());
}
public void testSetBodyAdjustsHeaders() throws IOException {
MockResponse response = new MockResponse().setBody("ABC");
assertEquals(Arrays.asList("Content-Length: 3"), response.getHeaders());
InputStream in = response.getBodyStream();
assertEquals('A', in.read());
assertEquals('B', in.read());
assertEquals('C', in.read());
assertEquals(-1, in.read());
assertEquals("HTTP/1.1 200 OK", response.getStatus());
}
public void testMockResponseAddHeader() {
MockResponse response = new MockResponse()
.clearHeaders()
.addHeader("Cookie: s=square")
.addHeader("Cookie", "a=android");
assertEquals(Arrays.asList("Cookie: s=square", "Cookie: a=android"),
response.getHeaders());
}
public void testMockResponseSetHeader() {
MockResponse response = new MockResponse()
.clearHeaders()
.addHeader("Cookie: s=square")
.addHeader("Cookie: a=android")
.addHeader("Cookies: delicious");
response.setHeader("cookie", "r=robot");
assertEquals(Arrays.asList("Cookies: delicious", "cookie: r=robot"),
response.getHeaders());
}
/**
* Clients who adhere to <a
* href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec8.html#sec8.2.3">100
* Status</a> expect the server to send an interim response with status code
* 100 before they send their payload.
*
* <h4>Note</h4>
*
* JRE 6 only passes this test if
* {@code -Dsun.net.http.allowRestrictedHeaders=true} is set.
*/
public void testExpect100ContinueWithBody() throws Exception {
server.enqueue(new MockResponse());
server.play();
URL url = server.getUrl("/");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("PUT");
connection.setAllowUserInteraction(false);
connection.setRequestProperty("Expect", "100-continue");
connection.setDoOutput(true);
connection.getOutputStream().write("hello".getBytes());
assertEquals(HttpURLConnection.HTTP_OK, connection.getResponseCode());
assertEquals(server.getRequestCount(), 1);
RecordedRequest request = server.takeRequest();
assertEquals(request.getRequestLine(), "PUT / HTTP/1.1");
assertEquals("5", request.getHeader("Content-Length"));
assertEquals(5, request.getBodySize());
assertEquals("hello", new String(request.getBody()));
// below fails on JRE 6 unless -Dsun.net.http.allowRestrictedHeaders=true is set
assertEquals("100-continue", request.getHeader("Expect"));
}
public void testExpect100ContinueWithNoBody() throws Exception {
server.enqueue(new MockResponse());
server.play();
URL url = server.getUrl("/");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("PUT");
connection.setAllowUserInteraction(false);
connection.setRequestProperty("Expect", "100-continue");
connection.setRequestProperty("Content-Length", "0");
connection.setDoOutput(true);
connection.setFixedLengthStreamingMode(0);
assertEquals(HttpURLConnection.HTTP_OK, connection.getResponseCode());
assertEquals(server.getRequestCount(), 1);
RecordedRequest request = server.takeRequest();
assertEquals(request.getRequestLine(), "PUT / HTTP/1.1");
assertEquals("0", request.getHeader("Content-Length"));
assertEquals(0, request.getBodySize());
// below fails on JRE 6 unless -Dsun.net.http.allowRestrictedHeaders=true is set
assertEquals("100-continue", request.getHeader("Expect"));
}
public void testRegularResponse() throws Exception {
server.enqueue(new MockResponse().setBody("hello world"));
server.play();
URL url = server.getUrl("/");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestProperty("Accept-Language", "en-US");
InputStream in = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
assertEquals(HttpURLConnection.HTTP_OK, connection.getResponseCode());
assertEquals("hello world", reader.readLine());
RecordedRequest request = server.takeRequest();
assertEquals("GET / HTTP/1.1", request.getRequestLine());
assertTrue(request.getHeaders().contains("Accept-Language: en-US"));
}
public void testRedirect() throws Exception {
server.play();
server.enqueue(new MockResponse()
.setResponseCode(HttpURLConnection.HTTP_MOVED_TEMP)
.addHeader("Location: " + server.getUrl("/new-path"))
.setBody("This page has moved!"));
server.enqueue(new MockResponse().setBody("This is the new location!"));
URLConnection connection = server.getUrl("/").openConnection();
InputStream in = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
assertEquals("This is the new location!", reader.readLine());
RecordedRequest first = server.takeRequest();
assertEquals("GET / HTTP/1.1", first.getRequestLine());
RecordedRequest redirect = server.takeRequest();
assertEquals("GET /new-path HTTP/1.1", redirect.getRequestLine());
}
/**
* Test that MockWebServer blocks for a call to enqueue() if a request
* is made before a mock response is ready.
*/
public void testDispatchBlocksWaitingForEnqueue() throws Exception {
server.play();
new Thread() {
@Override public void run() {
try {
Thread.sleep(1000);
} catch (InterruptedException ignored) {
}
server.enqueue(new MockResponse().setBody("enqueued in the background"));
}
}.start();
URLConnection connection = server.getUrl("/").openConnection();
InputStream in = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
assertEquals("enqueued in the background", reader.readLine());
}
public void testNonHexadecimalChunkSize() throws Exception {
server.enqueue(new MockResponse()
.setBody("G\r\nxxxxxxxxxxxxxxxx\r\n0\r\n\r\n")
.clearHeaders()
.addHeader("Transfer-encoding: chunked"));
server.play();
URLConnection connection = server.getUrl("/").openConnection();
InputStream in = connection.getInputStream();
try {
in.read();
fail();
} catch (IOException expected) {
}
}
public void testResponseTimeout() throws Exception {
server.enqueue(new MockResponse()
.setBody("ABC")
.clearHeaders()
.addHeader("Content-Length: 4"));
server.enqueue(new MockResponse()
.setBody("DEF"));
server.play();
URLConnection urlConnection = server.getUrl("/").openConnection();
urlConnection.setReadTimeout(1000);
InputStream in = urlConnection.getInputStream();
assertEquals('A', in.read());
assertEquals('B', in.read());
assertEquals('C', in.read());
try {
in.read(); // if Content-Length was accurate, this would return -1 immediately
fail();
} catch (SocketTimeoutException expected) {
}
URLConnection urlConnection2 = server.getUrl("/").openConnection();
InputStream in2 = urlConnection2.getInputStream();
assertEquals('D', in2.read());
assertEquals('E', in2.read());
assertEquals('F', in2.read());
assertEquals(-1, in2.read());
assertEquals(0, server.takeRequest().getSequenceNumber());
assertEquals(0, server.takeRequest().getSequenceNumber());
}
public void testDisconnectAtStart() throws Exception {
server.enqueue(new MockResponse().setSocketPolicy(SocketPolicy.DISCONNECT_AT_START));
server.enqueue(new MockResponse()); // The jdk's HttpUrlConnection is a bastard.
server.enqueue(new MockResponse());
server.play();
try {
server.getUrl("/a").openConnection().getInputStream();
} catch (IOException e) {
// Expected.
}
server.getUrl("/b").openConnection().getInputStream(); // Should succeed.
}
public void testStreamingResponseBody() throws Exception {
InputStream responseBody = new ByteArrayInputStream("ABC".getBytes("UTF-8"));
server.enqueue(new MockResponse().setBody(responseBody, 3));
server.play();
InputStream in = server.getUrl("/").openConnection().getInputStream();
assertEquals('A', in.read());
assertEquals('B', in.read());
assertEquals('C', in.read());
assertEquals(-1, responseBody.read()); // The body is exhausted.
}
}