Examples of org.apache.tomcat.util.buf.ByteChunk

org.apache.tomcat.util.buf.ByteChunk
This class is used to represent a chunk of bytes, and utilities to manipulate byte[]. The buffer can be modified and used for both input and output. There are 2 modes: The chunk can be associated with a sink - ByteInputChannel or ByteOutputChannel, which will be used when the buffer is empty ( on input ) or filled ( on output ). For output, it can also grow. This operating mode is selected by calling setLimit() or allocate(initial, limit) with limit != -1. Various search and append method are defined - similar with String and StringBuffer, but operating on bytes. This is important because it allows processing the http headers directly on the received bytes, without converting to chars and Strings until the strings are needed. In addition, the charset is determined later, from headers or user code. @author dac@sun.com @author James Todd [gonzo@sun.com] @author Costin Manolache @author Remy Maucherat

        context.setBackgroundProcessorDelay(1);
        tomcat.start();


        Assert.assertEquals(0, valve.getStuckThreadIds().length);


        final ByteChunk result = new ByteChunk();
        Thread asyncThread = new Thread() {
            @Override
            public void run() {
                try {
                    getUrl("http://localhost:" + getPort() + "/myservlet",
                            result, null);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }


        };
        asyncThread.start();
        try {
            Thread.sleep(500L);
            Assert.assertEquals(0, valve.getStuckThreadIds().length);


            Thread.sleep(3000L);
            Assert.assertEquals(1, valve.getStuckThreadIds().length);
        } finally {
            asyncThread.join();
        }
        Assert.assertFalse(stuckingServlet.wasInterrupted);
        Assert.assertTrue(result.toString().startsWith("OK"));
    }

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        context.setBackgroundProcessorDelay(1);
        tomcat.start();


        Assert.assertEquals(0, valve.getStuckThreadIds().length);


        final ByteChunk result = new ByteChunk();
        Thread asyncThread = new Thread() {
            @Override
            public void run() {
                try {
                    getUrl("http://localhost:" + getPort() + "/myservlet",
                            result, null);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }


        };
        asyncThread.start();
        try {
            Thread.sleep(4000L);
            Assert.assertEquals(1, valve.getStuckThreadIds().length);


            Thread.sleep(4000L);
            Assert.assertTrue(stuckingServlet.wasInterrupted);
            Assert.assertEquals(0, valve.getStuckThreadIds().length);
        } finally {
            asyncThread.join();
        }
        Assert.assertTrue(result.toString().startsWith("OK"));
    }

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            socket.close();
        }


        private void sendMessage(String message, boolean finalFragment)
                throws IOException {
            ByteChunk bc = new ByteChunk(8192);
            CharChunk cc = new CharChunk(8192);
            C2BConverter c2b = new C2BConverter("UTF-8");
            cc.append(message);
            c2b.convert(cc, bc);


            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;

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        // app dir is relative to server home
        tomcat.addWebapp(null, "/test", appDir.getAbsolutePath());


        tomcat.start();


        ByteChunk res = getUrl("http://localhost:" + getPort() +
                "/test/bug36923.jsp");


        String result = res.toString();
        assertEcho(result, "00-${hello world}");
    }

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        // app dir is relative to server home
        tomcat.addWebapp(null, "/test", appDir.getAbsolutePath());


        tomcat.start();


        ByteChunk res = getUrl("http://localhost:" + getPort() +
                "/test/bug42565.jsp");


        String result = res.toString();
        assertEcho(result, "00-false");
        assertEcho(result, "01-false");
        assertEcho(result, "02-false");
        assertEcho(result, "03-false");
        assertEcho(result, "04-false");

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        // app dir is relative to server home
        tomcat.addWebapp(null, "/test", appDir.getAbsolutePath());


        tomcat.start();


        ByteChunk res = getUrl("http://localhost:" + getPort() +
                "/test/bug44994.jsp");


        String result = res.toString();
        assertEcho(result, "00-none");
        assertEcho(result, "01-one");
        assertEcho(result, "02-many");
    }

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            response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
            return false;
        }


        authorization.toBytes();
        ByteChunk authorizationBC = authorization.getByteChunk();


        if (!authorizationBC.startsWithIgnoreCase("negotiate ", 0)) {
            if (log.isDebugEnabled()) {
                log.debug(sm.getString(
                        "spnegoAuthenticator.authHeaderNotNego"));
            }
            response.setHeader("WWW-Authenticate", "Negotiate");
            response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
            return false;
        }


        authorizationBC.setOffset(authorizationBC.getOffset() + 10);


        byte[] decoded = Base64.decodeBase64(authorizationBC.getBuffer(),
                authorizationBC.getOffset(),
                authorizationBC.getLength());


        if (decoded.length == 0) {
            if (log.isDebugEnabled()) {
                log.debug(sm.getString(
                        "spnegoAuthenticator.authHeaderNoToken"));

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            // using ActionCode#REQ_LOCAL_NAME_ATTRIBUTE
            request.setServerPort(endpoint.getPort());
            return;
        }


        ByteChunk valueBC = valueMB.getByteChunk();
        byte[] valueB = valueBC.getBytes();
        int valueL = valueBC.getLength();
        int valueS = valueBC.getStart();
        int colonPos = -1;
        if (hostNameC.length < valueL) {
            hostNameC = new char[valueL];
        }

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            // Note: This must be called before the response is committed


            getOutputBuffer().reset();


        } else if (actionCode == ActionCode.REQ_SET_BODY_REPLAY) {
            ByteChunk body = (ByteChunk) param;


            InputFilter savedBody = new SavedRequestInputFilter(body);
            savedBody.setRequest(request);


            @SuppressWarnings("unchecked")

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        MimeHeaders headers = request.getMimeHeaders();


        // Check connection header
        MessageBytes connectionValueMB = headers.getValue(Constants.CONNECTION);
        if (connectionValueMB != null) {
            ByteChunk connectionValueBC = connectionValueMB.getByteChunk();
            if (findBytes(connectionValueBC, Constants.CLOSE_BYTES) != -1) {
                keepAlive = false;
            } else if (findBytes(connectionValueBC,
                                 Constants.KEEPALIVE_BYTES) != -1) {
                keepAlive = true;
            }
        }


        MessageBytes expectMB = null;
        if (http11) {
            expectMB = headers.getValue("expect");
        }
        if ((expectMB != null)
            && (expectMB.indexOfIgnoreCase("100-continue", 0) != -1)) {
            getInputBuffer().setSwallowInput(false);
            expectation = true;
        }


        // Check user-agent header
        if ((restrictedUserAgents != null) && ((http11) || (keepAlive))) {
            MessageBytes userAgentValueMB = headers.getValue("user-agent");
            // Check in the restricted list, and adjust the http11
            // and keepAlive flags accordingly
            if(userAgentValueMB != null) {
                String userAgentValue = userAgentValueMB.toString();
                if (restrictedUserAgents != null &&
                        restrictedUserAgents.matcher(userAgentValue).matches()) {
                    http11 = false;
                    keepAlive = false;
                }
            }
        }


        // Check for a full URI (including protocol://host:port/)
        ByteChunk uriBC = request.requestURI().getByteChunk();
        if (uriBC.startsWithIgnoreCase("http", 0)) {


            int pos = uriBC.indexOf("://", 0, 3, 4);
            int uriBCStart = uriBC.getStart();
            int slashPos = -1;
            if (pos != -1) {
                byte[] uriB = uriBC.getBytes();
                slashPos = uriBC.indexOf('/', pos + 3);
                if (slashPos == -1) {
                    slashPos = uriBC.getLength();
                    // Set URI as "/"
                    request.requestURI().setBytes
                        (uriB, uriBCStart + pos + 1, 1);
                } else {
                    request.requestURI().setBytes
                        (uriB, uriBCStart + slashPos,
                         uriBC.getLength() - slashPos);
                }
                MessageBytes hostMB = headers.setValue("host");
                hostMB.setBytes(uriB, uriBCStart + pos + 3,
                                slashPos - pos - 3);
            }

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