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

org.apache.tomcat.util.buf.CharChunk
Utilities to manipluate char chunks. While String is the easiest way to manipulate chars ( search, substrings, etc), it is known to not be the most efficient solution - Strings are designed as imutable and secure objects. @author dac@sun.com @author James Todd [gonzo@sun.com] @author Costin Manolache @author Remy Maucherat

     * 
     * @param uriMB URI to be checked (should be chars)
     */
    public static boolean checkNormalize(MessageBytes uriMB) {


        CharChunk uriCC = uriMB.getCharChunk();
        char[] c = uriCC.getChars();
        int start = uriCC.getStart();
        int end = uriCC.getEnd();


        int pos = 0;


        // Check for '\' and 0
        for (pos = start; pos < end; pos++) {
            if (c[pos] == '\\') {
                return false;
            }
            if (c[pos] == 0) {
                return false;
            }
        }


        // Check for "//"
        for (pos = start; pos < (end - 1); pos++) {
            if (c[pos] == '/') {
                if (c[pos + 1] == '/') {
                    return false;
                }
            }
        }


        // Check for ending with "/." or "/.."
        if (((end - start) >= 2) && (c[end - 1] == '.')) {
            if ((c[end - 2] == '/') 
                    || ((c[end - 2] == '.') 
                    && (c[end - 3] == '/'))) {
                return false;
            }
        }


        // Check for "/./"
        if (uriCC.indexOf("/./", 0, 3, 0) >= 0) {
            return false;
        }


        // Check for "/../"
        if (uriCC.indexOf("/../", 0, 4, 0) >= 0) {
            return false;
        }


        return true;

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            }
        }


        // Acquire references to objects we will need to evaluate
        MessageBytes uriMB = MessageBytes.newInstance();
        CharChunk uriCC = uriMB.getCharChunk();
        uriCC.setLimit(-1);
        String contextPath = request.getContextPath();
        String requestURI = request.getDecodedRequestURI();


        // Is this the action request from the login page?
        boolean loginAction =

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            // The URL is chars or String, and has been sent using an in-memory
            // protocol handler, we have to assume the URL has been properly
            // decoded already
            decodedURI.toChars();
            // Remove any path parameters
            CharChunk uriCC = decodedURI.getCharChunk();
            int semicolon = uriCC.indexOf(';');
            if (semicolon > 0) {
                decodedURI.setChars
                    (uriCC.getBuffer(), uriCC.getStart(), semicolon);
            }
        }


        // Set the remote principal
        String principal = req.getRemoteUser().toString();

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    protected void convertURI(MessageBytes uri, Request request) 
        throws Exception {


        ByteChunk bc = uri.getByteChunk();
        int length = bc.getLength();
        CharChunk cc = uri.getCharChunk();
        cc.allocate(length, -1);


        String enc = connector.getURIEncoding();
        if (enc != null) {
            B2CConverter conv = request.getURIConverter();
            try {
                if (conv == null) {
                    conv = new B2CConverter(enc);
                    request.setURIConverter(conv);
                } else {
                    conv.recycle();
                }
            } catch (Exception e) {
                // Ignore
                log.error("Invalid URI encoding; using HTTP default");
                connector.setURIEncoding(null);
            }
            if (conv != null) {
                try {
                    conv.convert(bc, cc);
                    uri.setChars(cc.getBuffer(), cc.getStart(), 
                                 cc.getLength());
                    return;
                } catch (IOException e) {
                    log.error("Invalid URI character encoding; trying ascii");
                    cc.recycle();
                }
            }
        }


        // Default encoding: fast conversion
        byte[] bbuf = bc.getBuffer();
        char[] cbuf = cc.getBuffer();
        int start = bc.getStart();
        for (int i = 0; i < length; i++) {
            cbuf[i] = (char) (bbuf[i + start] & 0xff);
        }
        uri.setChars(cbuf, 0, length);

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                if (queryIndex != -1) {
                    queryString = urlString.substring(queryIndex+1);
                    urlString = urlString.substring(0, queryIndex);
                }
                // Set the new URL
                CharChunk chunk = request.getCoyoteRequest().requestURI().getCharChunk();
                chunk.recycle();
                if (context) {
                    chunk.append(request.getContextPath());
                }
                chunk.append(urlString);
                request.getCoyoteRequest().requestURI().toChars();
                // Set the new Query if there is one
                if (queryString != null) {
                    chunk = request.getCoyoteRequest().queryString().getCharChunk();
                    chunk.recycle();
                    chunk.append(queryString);
                    request.getCoyoteRequest().queryString().toChars();
                }
                // Set the new host if it changed
                if (!host.equals(request.getServerName())) {
                    chunk = request.getCoyoteRequest().serverName().getCharChunk();
                    chunk.recycle();
                    chunk.append(host.toString());
                    request.getCoyoteRequest().serverName().toChars();
                }
                request.getMappingData().recycle();
                // Reinvoke the whole request recursively
                try {

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        this.request = request;
        this.size = size;
        bb = new ByteChunk(size);
        bb.setLimit(size);
        bb.setByteInputChannel(this);
        cb = new CharChunk(size);
        cb.setLimit(size);
        cb.setOptimizedWrite(false);
        cb.setCharInputChannel(this);
        cb.setCharOutputChannel(this);

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        bytesRead = 0;
        charsRead = 0;
        
        // If usage of mark made the buffer too big, reallocate it
        if (cb.getChars().length > size) {
            cb = new CharChunk(size);
            cb.setLimit(size);
            cb.setOptimizedWrite(false);
            cb.setCharInputChannel(this);
            cb.setCharOutputChannel(this);
        } else {

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            // The URL is chars or String, and has been sent using an in-memory
            // protocol handler, we have to assume the URL has been properly
            // decoded already
            decodedURI.toChars();
            // Remove any path parameters
            CharChunk uriCC = decodedURI.getCharChunk();
            int semicolon = uriCC.indexOf(';');
            if (semicolon > 0) {
                decodedURI.setChars
                    (uriCC.getBuffer(), uriCC.getStart(), semicolon);
            }
        }


        // Set the remote principal
        String principal = req.getRemoteUser().toString();

View Full Code Here

            }
        }


        // Acquire references to objects we will need to evaluate
        MessageBytes uriMB = MessageBytes.newInstance();
        CharChunk uriCC = uriMB.getCharChunk();
        uriCC.setLimit(-1);
        String contextPath = request.getContextPath();
        String requestURI = request.getDecodedRequestURI();
        response.setContext(request.getContext());


        // Is this the action request from the login page?

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        ByteChunk valueBC = valueMB.getByteChunk();
        byte[] valueB = valueBC.getBytes();
        int valueL = valueBC.getLength();
        int valueS = valueBC.getStart();
        int colonPos = -1;
        CharChunk hostNameC = (CharChunk)request.getNote(HOSTBUFFER);
        if(hostNameC == null) {
            hostNameC = new CharChunk(valueL);
            request.setNote(HOSTBUFFER, hostNameC);
        }
        hostNameC.recycle();


        boolean ipv6 = (valueB[valueS] == '[');
        boolean bracketClosed = false;
        for (int i = 0; i < valueL; i++) {
            char b = (char) valueB[i + valueS];
            hostNameC.append(b);
            if (b == ']') {
                bracketClosed = true;
            } else if (b == ':') {
                if (!ipv6 || bracketClosed) {
                    colonPos = i;
                    break;
                }
            }
        }


        if (colonPos < 0) {
            if (request.scheme().equalsIgnoreCase("https")) {
                // 80 - Default HTTTP port
                request.setServerPort(443);
            } else {
                // 443 - Default HTTPS port
                request.setServerPort(80);
            }
            request.serverName().setChars(hostNameC.getChars(), 
                                          hostNameC.getStart(), 
                                          hostNameC.getLength());
        } else {


            request.serverName().setChars(hostNameC.getChars(), 
                                          hostNameC.getStart(), colonPos);


            int port = 0;
            int mult = 1;
            for (int i = valueL - 1; i > colonPos; i--) {
                int charValue = HexUtils.DEC[(int) valueB[i + valueS]];

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