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


        filterLibrary = new OutputFilter[0];
        activeFilters = new OutputFilter[0];
        lastActiveFilter = -1;


        socketBuffer = new ByteChunk();
        socketBuffer.setByteOutputChannel(this);


        committed = false;
        finished = false;

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     * @param mb data to be written
     */
    protected void write(MessageBytes mb) {


        if (mb.getType() == MessageBytes.T_BYTES) {
            ByteChunk bc = mb.getByteChunk();
            write(bc);
        } else if (mb.getType() == MessageBytes.T_CHARS) {
            CharChunk cc = mb.getCharChunk();
            write(cc);
        } else {

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        // Check connection header
        MessageBytes connectionValueMB = 
            request.getMimeHeaders().getValue("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 = request.getMimeHeaders().getValue("expect");
        if ((expectMB != null)
            && (expectMB.indexOfIgnoreCase("100-continue", 0) != -1)) {
            inputBuffer.setSwallowInput(false);
            expectation = true;
        }


        // Check user-agent header
        if ((restrictedUserAgents != null) && ((http11) || (keepAlive))) {
            MessageBytes userAgentValueMB =  
                request.getMimeHeaders().getValue("user-agent");
            // Check in the restricted list, and adjust the http11 
            // and keepAlive flags accordingly
            if(userAgentValueMB != null) {
                String userAgentValue = userAgentValueMB.toString();
                for (int i = 0; i < restrictedUserAgents.length; i++) {
                    if (restrictedUserAgents[i].match(userAgentValue)) {
                        http11 = false;
                        keepAlive = false;
                        break;
                    }
                }
            }
        }


        // 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 = 
                    request.getMimeHeaders().setValue("host");
                hostMB.setBytes(uriB, uriBCStart + pos + 3, 
                                slashPos - pos - 3);

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            request.setLocalHost(localAddress.getHostName());
            request.serverName().setString(localAddress.getHostName());
            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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            }


            // Uncomment to test the new parsing code
            if( cookieValue.getType() == MessageBytes.T_BYTES ) {
                if( dbg>0 ) log( "Parsing b[]: " + cookieValue.toString());
                ByteChunk bc=cookieValue.getByteChunk();
                processCookieHeader( bc.getBytes(),
                                     bc.getOffset(),
                                     bc.getLength());
            } else {
                if( dbg>0 ) log( "Parsing S: " + cookieValue.toString());
                processCookieHeader( cookieValue.toString() );
            }
            pos++;// search from the next position

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    /**
     * Read chunked post body.
     */
    protected byte[] readChunkedPostBody() throws IOException {
        ByteChunk body = new ByteChunk();
        
        byte[] buffer = new byte[CACHED_POST_LEN];
        
        int len = 0;
        while (len > -1) {
            len = getStream().read(buffer, 0, CACHED_POST_LEN);
            if (connector.getMaxPostSize() > 0 &&
                    (body.getLength() + len) > connector.getMaxPostSize()) {
                // Too much data
                throw new IllegalArgumentException(
                        sm.getString("coyoteRequest.chunkedPostTooLarge"));
            }
            if (len > 0) {
                body.append(buffer, 0, len);
            }
        }
        if (body.getLength() == 0) {
            return null;
        }
        if (body.getLength() < body.getBuffer().length) {
            int length = body.getLength();
            byte[] result = new byte[length];
            System.arraycopy(body.getBuffer(), 0, result, 0, length);
            return result;
        } else {
            return body.getBuffer();
        }
    }

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                    md.reset();
                    md.update(credentials.getBytes());


                    // Decode stored password.
                    ByteChunk pwbc = new ByteChunk(password.length());
                    try {
                        pwbc.append(password.getBytes(), 0, password.length());
                    } catch (IOException e) {
                        // Should never happen
                        containerLog.error("Could not append password bytes to chunk: ", e);
                    }

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                }
            }
        }


        // 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 = 
                    request.getMimeHeaders().setValue("host");
                hostMB.setBytes(uriB, uriBCStart + pos + 3, 
                                slashPos - pos - 3);

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            request.setLocalHost(localAddress.getHostName());
            request.serverName().setString(localAddress.getHostName());
            return;
        }


        ByteChunk valueBC = valueMB.getByteChunk();
        byte[] valueB = valueBC.getBytes();
        int valueL = valueBC.getLength();
        int valueS = valueBC.getStart();
        int colonPos = -1;


        for (int i = 0; i < valueL; i++) {
            char b = (char) valueB[i + valueS];
            if (b == ':') {

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            appendInt( 0);
            appendByte(0);
            return;
        }
        if (mb.getType() == MessageBytes.T_BYTES) {
            ByteChunk bc = mb.getByteChunk();
            appendByteChunk(bc);
        } else if (mb.getType() == MessageBytes.T_CHARS) {
            CharChunk cc = mb.getCharChunk();
            appendCharChunk(cc);
        } else {

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