Examples with CharChunk org.apache.tomcat.util.buf.CharChunk used on opensource projects

Example 11 with CharChunk

use of org.apache.tomcat.util.buf.CharChunk in project tomcat70 by apache.

the class CoyoteAdapter method checkNormalize.

/**
 * Check that the URI is normalized following character decoding.
 * <p>
 * This method checks for "\", 0, "//", "/./" and "/../". This method will
 * return false if sequences that are supposed to be normalized are still
 * present in the URI.
 *
 * @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;
}

Example 12 with CharChunk

use of org.apache.tomcat.util.buf.CharChunk in project tomcat70 by apache.

the class CoyoteAdapter method convertURI.

/**
 * Character conversion of the URI.
 */
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, true);
                request.setURIConverter(conv);
            } else {
                conv.recycle();
            }
        } catch (IOException e) {
            log.error("Invalid URI encoding; using HTTP default");
            connector.setURIEncoding(null);
        }
        if (conv != null) {
            try {
                conv.convert(bc, cc, true);
                uri.setChars(cc.getBuffer(), cc.getStart(), cc.getLength());
                return;
            } catch (IOException ioe) {
                // Should never happen as B2CConverter should replace
                // problematic characters
                request.getResponse().sendError(HttpServletResponse.SC_BAD_REQUEST);
            }
        }
    }
    // Default encoding: fast conversion for ISO-8859-1
    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);
}

Example 13 with CharChunk

use of org.apache.tomcat.util.buf.CharChunk in project tomcat70 by apache.

the class AbstractOutputBuffer method write.

/**
 * This method will write the contents of the specified message bytes
 * buffer to the output stream, without filtering. This method is meant to
 * be used to write the response header.
 *
 * @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 {
        write(mb.toString());
    }
}

Example 14 with CharChunk

use of org.apache.tomcat.util.buf.CharChunk in project tomcat70 by apache.

the class Mapper method map.

/**
 * Map the specified URI relative to the context,
 * mutating the given mapping data.
 *
 * @param uri URI
 * @param mappingData This structure will contain the result of the mapping
 *                    operation
 */
public void map(MessageBytes uri, MappingData mappingData) throws Exception {
    uri.toChars();
    CharChunk uricc = uri.getCharChunk();
    uricc.setLimit(-1);
    internalMapWrapper(context, uricc, mappingData);
}

Example 15 with CharChunk

use of org.apache.tomcat.util.buf.CharChunk in project tomcat by apache.

the class CoyoteAdapter method convertMB.

/**
 * Character conversion of the a US-ASCII MessageBytes.
 *
 * @param mb The MessageBytes instance containing the bytes that should be converted to chars
 */
protected void convertMB(MessageBytes mb) {
    // This is of course only meaningful for bytes
    if (mb.getType() != MessageBytes.T_BYTES) {
        return;
    }
    ByteChunk bc = mb.getByteChunk();
    CharChunk cc = mb.getCharChunk();
    int length = bc.getLength();
    cc.allocate(length, -1);
    // 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);
    }
    mb.setChars(cbuf, 0, length);
}