/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.catalina.websocket;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.security.MessageDigest;
import java.util.ArrayList;
import java.util.List;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import org.apache.catalina.Context;
import org.apache.catalina.deploy.ContextEnvironment;
import org.apache.catalina.startup.Tomcat;
import org.apache.catalina.startup.TomcatBaseTest;
import org.apache.catalina.util.Base64;
import org.apache.tomcat.util.buf.B2CConverter;
import org.apache.tomcat.util.buf.ByteChunk;
import org.apache.tomcat.util.buf.C2BConverter;
import org.apache.tomcat.util.buf.CharChunk;
public class TestWebSocket extends TomcatBaseTest {
private static final String CRLF = "\r\n";
private static final byte[] WS_ACCEPT =
"258EAFA5-E914-47DA-95CA-C5AB0DC85B11".getBytes(
B2CConverter.ISO_8859_1);
@Test
public void testSimple() throws Exception {
Tomcat tomcat = getTomcatInstance();
File appDir = new File(getBuildDirectory(), "webapps/examples");
tomcat.addWebapp(null, "/examples", appDir.getAbsolutePath());
tomcat.start();
WebSocketClient client= new WebSocketClient(getPort());
// Send the WebSocket handshake
client.writer.write("GET /examples/websocket/echoStream HTTP/1.1" + CRLF);
client.writer.write("Host: foo" + CRLF);
client.writer.write("Upgrade: websocket" + CRLF);
client.writer.write("Connection: keep-alive, upgrade" + CRLF);
client.writer.write("Sec-WebSocket-Version: 13" + CRLF);
client.writer.write("Sec-WebSocket-Key: TODO" + CRLF);
client.writer.write(CRLF);
client.writer.flush();
// Make sure we got an upgrade response
String responseLine = client.reader.readLine();
assertTrue(responseLine.startsWith("HTTP/1.1 101"));
// Swallow the headers
String responseHeaderLine = client.reader.readLine();
while (!responseHeaderLine.equals("")) {
responseHeaderLine = client.reader.readLine();
}
// Now we can do WebSocket
client.sendMessage("foo", false);
client.sendMessage("foo", true);
assertEquals("foofoo", client.readMessage());
// Finished with the socket
client.close();
}
@Test
public void testDetectWrongVersion() throws Exception {
Tomcat tomcat = getTomcatInstance();
File appDir = new File(getBuildDirectory(), "webapps/examples");
tomcat.addWebapp(null, "/examples", appDir.getAbsolutePath());
tomcat.start();
WebSocketClient client= new WebSocketClient(getPort());
// Send the WebSocket handshake
client.writer.write("GET /examples/websocket/echoStream HTTP/1.1" + CRLF);
client.writer.write("Host: foo" + CRLF);
client.writer.write("Upgrade: websocket" + CRLF);
client.writer.write("Connection: upgrade" + CRLF);
client.writer.write("Sec-WebSocket-Version: 8" + CRLF);
client.writer.write("Sec-WebSocket-Key: TODO" + CRLF);
client.writer.write(CRLF);
client.writer.flush();
// Make sure we got an upgrade response
String responseLine = client.reader.readLine();
assertTrue(responseLine.startsWith("HTTP/1.1 426"));
List<String> headerlines = new ArrayList<String>();
String responseHeaderLine = client.reader.readLine();
while (!responseHeaderLine.equals("")) {
headerlines.add(responseHeaderLine);
responseHeaderLine = client.reader.readLine();
}
assertTrue(headerlines.contains("Sec-WebSocket-Version: 13"));
// Finished with the socket
client.close();
}
@Test
public void testNoConnection() throws Exception {
Tomcat tomcat = getTomcatInstance();
File appDir = new File(getBuildDirectory(), "webapps/examples");
tomcat.addWebapp(null, "/examples", appDir.getAbsolutePath());
tomcat.start();
WebSocketClient client= new WebSocketClient(getPort());
// Send the WebSocket handshake
client.writer.write("GET /examples/websocket/echoStream HTTP/1.1" + CRLF);
client.writer.write("Host: foo" + CRLF);
client.writer.write("Upgrade: websocket" + CRLF);
client.writer.write("Sec-WebSocket-Version: 13" + CRLF);
client.writer.write("Sec-WebSocket-Key: TODO" + CRLF);
client.writer.write(CRLF);
client.writer.flush();
// Make sure we got an upgrade response
String responseLine = client.reader.readLine();
assertTrue(responseLine.startsWith("HTTP/1.1 400"));
// Finished with the socket
client.close();
}
@Test
public void testNoUpgrade() throws Exception {
Tomcat tomcat = getTomcatInstance();
File appDir = new File(getBuildDirectory(), "webapps/examples");
tomcat.addWebapp(null, "/examples", appDir.getAbsolutePath());
tomcat.start();
WebSocketClient client= new WebSocketClient(getPort());
// Send the WebSocket handshake
client.writer.write("GET /examples/websocket/echoStream HTTP/1.1" + CRLF);
client.writer.write("Host: foo" + CRLF);
client.writer.write("Connection: upgrade" + CRLF);
client.writer.write("Sec-WebSocket-Version: 13" + CRLF);
client.writer.write("Sec-WebSocket-Key: TODO" + CRLF);
client.writer.write(CRLF);
client.writer.flush();
// Make sure we got an upgrade response
String responseLine = client.reader.readLine();
assertTrue(responseLine.startsWith("HTTP/1.1 400"));
// Finished with the socket
client.close();
}
@Test
public void testKey() throws Exception {
Tomcat tomcat = getTomcatInstance();
File appDir = new File(getBuildDirectory(), "webapps/examples");
tomcat.addWebapp(null, "/examples", appDir.getAbsolutePath());
tomcat.start();
WebSocketClient client= new WebSocketClient(getPort());
// Send the WebSocket handshake
client.writer.write("GET /examples/websocket/echoStream HTTP/1.1" + CRLF);
client.writer.write("Host: foo" + CRLF);
client.writer.write("Upgrade: websocket" + CRLF);
client.writer.write("Connection: upgrade" + CRLF);
client.writer.write("Sec-WebSocket-Version: 13" + CRLF);
client.writer.write("Sec-WebSocket-Key: TODO" + CRLF);
client.writer.write(CRLF);
client.writer.flush();
// Make sure we got an upgrade response
String responseLine = client.reader.readLine();
assertTrue(responseLine.startsWith("HTTP/1.1 101"));
String accept = null;
String responseHeaderLine = client.reader.readLine();
while (!responseHeaderLine.equals("")) {
if(responseHeaderLine.startsWith("Sec-WebSocket-Accept: ")) {
accept = responseHeaderLine.substring(responseHeaderLine.indexOf(":")+2);
break;
}
responseHeaderLine = client.reader.readLine();
}
assertTrue(accept != null);
MessageDigest sha1Helper = MessageDigest.getInstance("SHA1");
sha1Helper.reset();
sha1Helper.update("TODO".getBytes(B2CConverter.ISO_8859_1));
String source = Base64.encode(sha1Helper.digest(WS_ACCEPT));
assertEquals(source,accept);
sha1Helper.reset();
sha1Helper.update("TOD".getBytes(B2CConverter.ISO_8859_1));
source = Base64.encode(sha1Helper.digest(WS_ACCEPT));
assertFalse(source.equals(accept));
// Finished with the socket
client.close();
}
@Test
public void testBug53339() throws Exception {
Tomcat tomcat = getTomcatInstance();
tomcat.enableNaming();
// Must have a real docBase - just use temp
Context ctx =
tomcat.addContext("", System.getProperty("java.io.tmpdir"));
Tomcat.addServlet(ctx, "Bug53339", new Bug53339Servlet());
ctx.addServletMapping("/*", "Bug53339");
// Create the resource
ContextEnvironment env = new ContextEnvironment();
env.setName(Bug53339WsInbound.JNDI_NAME);
env.setType(String.class.getName());
env.setValue(Bug53339WsInbound.TEST_MESSAGE);
ctx.getNamingResources().addEnvironment(env);
tomcat.start();
WebSocketClient client= new WebSocketClient(getPort());
// Send the WebSocket handshake
client.writer.write("GET / HTTP/1.1" + CRLF);
client.writer.write("Host: foo" + CRLF);
client.writer.write("Upgrade: websocket" + CRLF);
client.writer.write("Connection: upgrade" + CRLF);
client.writer.write("Sec-WebSocket-Version: 13" + CRLF);
client.writer.write("Sec-WebSocket-Key: TODO" + CRLF);
client.writer.write(CRLF);
client.writer.flush();
// Make sure we got an upgrade response
String responseLine = client.reader.readLine();
assertTrue(responseLine.startsWith("HTTP/1.1 101"));
// Swallow the headers
String responseHeaderLine = client.reader.readLine();
while (!responseHeaderLine.equals("")) {
responseHeaderLine = client.reader.readLine();
}
// Now we can do WebSocket
String msg = client.readMessage();
assertEquals(Bug53339WsInbound.TEST_MESSAGE, msg);
// Finished with the socket
client.close();
}
private static class Bug53339Servlet extends WebSocketServlet {
private static final long serialVersionUID = 1L;
@Override
protected StreamInbound createWebSocketInbound(String subProtocol) {
return new Bug53339WsInbound();
}
}
private static class Bug53339WsInbound extends MessageInbound {
public static final String TEST_MESSAGE = "Test Message";
public static final String JNDI_NAME = "Bug53339Message";
@Override
protected void onOpen(WsOutbound outbound) {
String msg = "Error";
try {
javax.naming.Context initCtx = new InitialContext();
msg = (String) initCtx.lookup(
"java:comp/env/" + JNDI_NAME);
} catch (NamingException e) {
// Ignore - the test checks if the message is sent
e.printStackTrace(); // for debug purposes if the test fails
}
CharBuffer cb = CharBuffer.wrap("" + msg);
try {
outbound.writeTextMessage(cb);
} catch (IOException e) {
// Ignore - the test checks if the message is sent
}
}
@Override
protected void onBinaryMessage(ByteBuffer message) throws IOException {
// Ignore
}
@Override
protected void onTextMessage(CharBuffer message) throws IOException {
// Ignore
}
}
private static class WebSocketClient {
private OutputStream os;
private InputStream is;
private boolean isContinuation = false;
final String encoding = "ISO-8859-1";
private Socket socket ;
private Writer writer ;
private BufferedReader reader;
public WebSocketClient(int port) {
SocketAddress addr = new InetSocketAddress("localhost", port);
socket = new Socket();
try {
socket.setSoTimeout(10000);
socket.connect(addr, 10000);
os = socket.getOutputStream();
writer = new OutputStreamWriter(os, encoding);
is = socket.getInputStream();
Reader r = new InputStreamReader(is, encoding);
reader = new BufferedReader(r);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
void close() throws IOException {
socket.close();
}
private void sendMessage(String message, boolean finalFragment)
throws IOException {
ByteChunk bc = new ByteChunk(8192);
C2BConverter c2b = new C2BConverter(bc, "UTF-8");
c2b.convert(message);
c2b.flushBuffer();
int len = bc.getLength();
assertTrue(len < 126);
byte first;
if (isContinuation) {
first = Constants.OPCODE_CONTINUATION;
} else {
first = Constants.OPCODE_TEXT;
}
if (finalFragment) {
first = (byte) (0x80 | first);
}
os.write(first);
os.write(0x80 | len);
// Zero mask
os.write(0);
os.write(0);
os.write(0);
os.write(0);
// Payload
os.write(bc.getBytes(), bc.getStart(), len);
os.flush();
// Will the next frame be a continuation frame
isContinuation = !finalFragment;
}
private String readMessage() throws IOException {
ByteChunk bc = new ByteChunk(125);
CharChunk cc = new CharChunk(125);
// Skip first byte
is.read();
// Get payload length
int len = is.read() & 0x7F;
assertTrue(len < 126);
// Read payload
int read = 0;
while (read < len) {
read = read + is.read(bc.getBytes(), read, len - read);
}
bc.setEnd(len);
B2CConverter b2c = new B2CConverter("UTF-8");
b2c.convert(bc, cc, len);
return cc.toString();
}
}
}