Java ByteChunk.setEnd方法代码示例

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Read bytes.
 */
@Override
public int doRead(ByteChunk chunk, org.apache.coyote.Request request)
        throws IOException {
    int writeLength = 0;
    
    if (chunk.getLimit() > 0 && chunk.getLimit() < input.getLength()) {
        writeLength = chunk.getLimit();
    } else {
        writeLength = input.getLength();
    }
    
    if(input.getOffset()>= input.getEnd())
        return -1;
    
    input.substract(chunk.getBuffer(), 0, writeLength);
    chunk.setOffset(0);
    chunk.setEnd(writeLength);
    
    return writeLength;
}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Unescapes any double quotes in the given cookie value.
 *
 * @param bc The cookie value to modify
 */
private static void unescapeDoubleQuotes(ByteChunk bc) {

    if (bc == null || bc.getLength() == 0 || bc.indexOf('"', 0) == -1) {
        return;
    }

    int src = bc.getStart();
    int end = bc.getEnd();
    int dest = src;
    byte[] buffer = bc.getBuffer();

    while (src < end) {
        if (buffer[src] == '\\' && src < end && buffer[src+1]  == '"') {
            src++;
        }
        buffer[dest] = buffer[src];
        dest ++;
        src ++;
    }
    bc.setEnd(dest);
}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Read bytes.
 */
public int doRead(ByteChunk chunk, org.apache.coyote.Request request)
        throws IOException {
    int writeLength = 0;
    
    if (chunk.getLimit() > 0 && chunk.getLimit() < input.getLength()) {
        writeLength = chunk.getLimit();
    } else {
    	writeLength = input.getLength();
    }
    
    if(input.getOffset()>= input.getEnd())
        return -1;
    
    input.substract(chunk.getBuffer(), 0, writeLength);
    chunk.setOffset(0);
    chunk.setEnd(writeLength);
    
    return writeLength;
}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Unescapes any double quotes in the given cookie value.
 *
 * @param bc The cookie value to modify
 */
public static void unescapeDoubleQuotes(ByteChunk bc) {

    if (bc == null || bc.getLength() == 0 || bc.indexOf('"', 0) == -1) {
        return;
    }

    int src = bc.getStart();
    int end = bc.getEnd();
    int dest = src;
    byte[] buffer = bc.getBuffer();
    
    while (src < end) {
        if (buffer[src] == '\\' && src < end && buffer[src+1]  == '"') {
            src++;
        }
        buffer[dest] = buffer[src];
        dest ++;
        src ++;
    }
    bc.setEnd(dest);
}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Read bytes.
 */
@Override
public int doRead(ByteChunk chunk, org.apache.coyote.Request request) throws IOException {
	int writeLength = 0;

	if (chunk.getLimit() > 0 && chunk.getLimit() < input.getLength()) {
		writeLength = chunk.getLimit();
	} else {
		writeLength = input.getLength();
	}

	if (input.getOffset() >= input.getEnd())
		return -1;

	input.substract(chunk.getBuffer(), 0, writeLength);
	chunk.setOffset(0);
	chunk.setEnd(writeLength);

	return writeLength;
}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Unescapes any double quotes in the given cookie value.
 *
 * @param bc
 *            The cookie value to modify
 */
private static void unescapeDoubleQuotes(ByteChunk bc) {

	if (bc == null || bc.getLength() == 0 || bc.indexOf('"', 0) == -1) {
		return;
	}

	int src = bc.getStart();
	int end = bc.getEnd();
	int dest = src;
	byte[] buffer = bc.getBuffer();

	while (src < end) {
		if (buffer[src] == '\\' && src < end && buffer[src + 1] == '"') {
			src++;
		}
		buffer[dest] = buffer[src];
		dest++;
		src++;
	}
	bc.setEnd(dest);
}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Parse session id in URL.
 */
protected void parseSessionId(org.apache.coyote.Request req, Request request) {

    ByteChunk uriBC = req.requestURI().getByteChunk();
    int semicolon = uriBC.indexOf(match, 0, match.length(), 0);

    if (semicolon > 0) {

        // Parse session ID, and extract it from the decoded request URI
        int start = uriBC.getStart();
        int end = uriBC.getEnd();

        int sessionIdStart = semicolon + match.length();
        int semicolon2 = uriBC.indexOf(';', sessionIdStart);
        if (semicolon2 >= 0) {
            request.setRequestedSessionId
                (new String(uriBC.getBuffer(), start + sessionIdStart, 
                        semicolon2 - sessionIdStart));
            // Extract session ID from request URI
            byte[] buf = uriBC.getBuffer();
            for (int i = 0; i < end - start - semicolon2; i++) {
                buf[start + semicolon + i] 
                    = buf[start + i + semicolon2];
            }
            uriBC.setBytes(buf, start, end - start - semicolon2 + semicolon);
        } else {
            request.setRequestedSessionId
                (new String(uriBC.getBuffer(), start + sessionIdStart, 
                        (end - start) - sessionIdStart));
            uriBC.setEnd(start + semicolon);
        }
        request.setRequestedSessionURL(true);

    } else {
        request.setRequestedSessionId(null);
        request.setRequestedSessionURL(false);
    }

}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Decodes Base64 data into octets
 *
 * @param base64DataBC Byte array containing Base64 data
 * @param decodedDataBC The decoded data bytes
 */
public static void decode( ByteChunk base64DataBC, ByteChunk decodedDataBC)
{
    int start = base64DataBC.getStart();
    int end = base64DataBC.getEnd();
    byte[] base64Data = base64DataBC.getBuffer();
    
    decodedDataBC.recycle();
    
    // handle the edge case, so we don't have to worry about it later
    if(end - start == 0) { return; }

    int      numberQuadruple    = (end - start)/FOURBYTE;
    byte     b1=0,b2=0,b3=0, b4=0, marker0=0, marker1=0;

    // Throw away anything not in base64Data

    int encodedIndex = 0;
    int dataIndex = start;
    byte[] decodedData = null;
    
    {
        // this sizes the output array properly - rlw
        int lastData = end - start;
        // ignore the '=' padding
        while (base64Data[start+lastData-1] == PAD)
        {
            if (--lastData == 0)
            {
                return;
            }
        }
        decodedDataBC.allocate(lastData - numberQuadruple, -1);
        decodedDataBC.setEnd(lastData - numberQuadruple);
        decodedData = decodedDataBC.getBuffer();
    }

    for (int i = 0; i < numberQuadruple; i++)
    {
        dataIndex = start + i * 4;
        marker0   = base64Data[dataIndex + 2];
        marker1   = base64Data[dataIndex + 3];

        b1 = base64Alphabet[base64Data[dataIndex]];
        b2 = base64Alphabet[base64Data[dataIndex +1]];

        if (marker0 != PAD && marker1 != PAD)
        {
            //No PAD e.g 3cQl
            b3 = base64Alphabet[ marker0 ];
            b4 = base64Alphabet[ marker1 ];

            decodedData[encodedIndex]   = (byte) ((  b1 <<2 | b2>>4 ) & 0xff);
            decodedData[encodedIndex + 1] =
                (byte) ((((b2 & 0xf)<<4 ) |( (b3>>2) & 0xf) ) & 0xff);
            decodedData[encodedIndex + 2] = (byte) (( b3<<6 | b4 ) & 0xff);
        }
        else if (marker0 == PAD)
        {
            //Two PAD e.g. 3c[Pad][Pad]
            decodedData[encodedIndex]   = (byte) ((  b1 <<2 | b2>>4 ) & 0xff);
        }
        else if (marker1 == PAD)
        {
            //One PAD e.g. 3cQ[Pad]
            b3 = base64Alphabet[ marker0 ];

            decodedData[encodedIndex]   = (byte) ((  b1 <<2 | b2>>4 ) & 0xff);
            decodedData[encodedIndex + 1] =
                (byte) ((((b2 & 0xf)<<4 ) |( (b3>>2) & 0xf) ) & 0xff);
        }
        encodedIndex += 3;
    }
}
 

import org.apache.tomcat.util.buf.ByteChunk; //导入方法依赖的package包/类
/**
 * Decodes Base64 data into octets
 *
 * @param base64DataBC
 *            Byte array containing Base64 data
 * @param decodedDataBC
 *            The decoded data bytes
 */
public static void decode(ByteChunk base64DataBC, ByteChunk decodedDataBC) {
	int start = base64DataBC.getStart();
	int end = base64DataBC.getEnd();
	byte[] base64Data = base64DataBC.getBuffer();

	decodedDataBC.recycle();

	// handle the edge case, so we don't have to worry about it later
	if (end - start == 0) {
		return;
	}

	int numberQuadruple = (end - start) / FOURBYTE;
	byte b1 = 0, b2 = 0, b3 = 0, b4 = 0, marker0 = 0, marker1 = 0;

	// Throw away anything not in base64Data

	int encodedIndex = 0;
	int dataIndex = start;
	byte[] decodedData = null;

	{
		// this sizes the output array properly - rlw
		int lastData = end - start;
		// ignore the '=' padding
		while (base64Data[start + lastData - 1] == PAD) {
			if (--lastData == 0) {
				return;
			}
		}
		decodedDataBC.allocate(lastData - numberQuadruple, -1);
		decodedDataBC.setEnd(lastData - numberQuadruple);
		decodedData = decodedDataBC.getBuffer();
	}

	for (int i = 0; i < numberQuadruple; i++) {
		dataIndex = start + i * 4;
		marker0 = base64Data[dataIndex + 2];
		marker1 = base64Data[dataIndex + 3];

		b1 = base64Alphabet[base64Data[dataIndex]];
		b2 = base64Alphabet[base64Data[dataIndex + 1]];

		if (marker0 != PAD && marker1 != PAD) {
			// No PAD e.g 3cQl
			b3 = base64Alphabet[marker0];
			b4 = base64Alphabet[marker1];

			decodedData[encodedIndex] = (byte) ((b1 << 2 | b2 >> 4) & 0xff);
			decodedData[encodedIndex + 1] = (byte) ((((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)) & 0xff);
			decodedData[encodedIndex + 2] = (byte) ((b3 << 6 | b4) & 0xff);
		} else if (marker0 == PAD) {
			// Two PAD e.g. 3c[Pad][Pad]
			decodedData[encodedIndex] = (byte) ((b1 << 2 | b2 >> 4) & 0xff);
		} else if (marker1 == PAD) {
			// One PAD e.g. 3cQ[Pad]
			b3 = base64Alphabet[marker0];

			decodedData[encodedIndex] = (byte) ((b1 << 2 | b2 >> 4) & 0xff);
			decodedData[encodedIndex + 1] = (byte) ((((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf)) & 0xff);
		}
		encodedIndex += 3;
	}
}