Examples with DataFormatException java.util.zip.DataFormatException used on opensource projects

Example 1 with DataFormatException

use of java.util.zip.DataFormatException in project tomcat by apache.

the class PerMessageDeflate method getMoreData.

@Override
public TransformationResult getMoreData(byte opCode, boolean fin, int rsv, ByteBuffer dest) throws IOException {
    // a WebSocket method. Pass them straight through.
    if (Util.isControl(opCode)) {
        return next.getMoreData(opCode, fin, rsv, dest);
    }
    if (!Util.isContinuation(opCode)) {
        // First frame in new message
        skipDecompression = (rsv & RSV_BITMASK) == 0;
    }
    // Pass uncompressed frames straight through.
    if (skipDecompression) {
        return next.getMoreData(opCode, fin, rsv, dest);
    }
    int written;
    boolean usedEomBytes = false;
    while (dest.remaining() > 0) {
        // Space available in destination. Try and fill it.
        try {
            written = inflater.inflate(dest.array(), dest.arrayOffset() + dest.position(), dest.remaining());
        } catch (DataFormatException e) {
            throw new IOException(sm.getString("perMessageDeflate.deflateFailed"), e);
        }
        dest.position(dest.position() + written);
        if (inflater.needsInput() && !usedEomBytes) {
            if (dest.hasRemaining()) {
                readBuffer.clear();
                TransformationResult nextResult = next.getMoreData(opCode, fin, (rsv ^ RSV_BITMASK), readBuffer);
                inflater.setInput(readBuffer.array(), readBuffer.arrayOffset(), readBuffer.position());
                if (TransformationResult.UNDERFLOW.equals(nextResult)) {
                    return nextResult;
                } else if (TransformationResult.END_OF_FRAME.equals(nextResult) && readBuffer.position() == 0) {
                    if (fin) {
                        inflater.setInput(EOM_BYTES);
                        usedEomBytes = true;
                    } else {
                        return TransformationResult.END_OF_FRAME;
                    }
                }
            }
        } else if (written == 0) {
            if (fin && (isServer && !clientContextTakeover || !isServer && !serverContextTakeover)) {
                inflater.reset();
            }
            return TransformationResult.END_OF_FRAME;
        }
    }
    return TransformationResult.OVERFLOW;
}

Example 2 with DataFormatException

use of java.util.zip.DataFormatException in project commoncrawl-examples by commoncrawl.

the class GzipCompressorInputStream method read.

/**
     * {@inheritDoc}
     *
     * @since 1.1
     */
@Override
public int read(byte[] b, int off, int len) throws IOException {
    if (stoppedForEndOfMember || endOfStream) {
        return -1;
    }
    int size = 0;
    while (len > 0) {
        if (inf.needsInput()) {
            // Remember the current position because we may need to
            // rewind after reading too much input.
            in.mark(buf.length);
            bufUsed = in.read(buf);
            if (bufUsed == -1) {
                throw new EOFException();
            }
            inf.setInput(buf, 0, bufUsed);
        }
        int ret;
        try {
            ret = inf.inflate(b, off, len);
        } catch (DataFormatException e) {
            throw new IOException("Gzip-compressed data is corrupt");
        }
        crc.update(b, off, ret);
        memberSize += ret;
        off += ret;
        len -= ret;
        size += ret;
        count(ret);
        if (inf.finished()) {
            // We may have read too many bytes. Rewind the read
            // position to match the actual amount used.
            //
            // NOTE: The "if" is there just in case. Since we used
            // in.mark earler, it should always skip enough.
            in.reset();
            int skipAmount = bufUsed - inf.getRemaining();
            if (in.skip(skipAmount) != skipAmount) {
                throw new IOException();
            }
            bufUsed = 0;
            DataInputStream inData = new DataInputStream(in);
            // CRC32
            long crcStored = 0;
            for (int i = 0; i < 4; ++i) {
                crcStored |= (long) inData.readUnsignedByte() << (i * 8);
            }
            if (crcStored != crc.getValue()) {
                throw new IOException("Gzip-compressed data is corrupt " + "(CRC32 error)");
            }
            // Uncompressed size modulo 2^32 (ISIZE in the spec)
            int isize = 0;
            for (int i = 0; i < 4; ++i) {
                isize |= inData.readUnsignedByte() << (i * 8);
            }
            if (isize != memberSize) {
                throw new IOException("Gzip-compressed data is corrupt" + "(uncompressed size mismatch)");
            }
            if (!decompressConcatenated) {
                stoppedForEndOfMember = true;
            }
            // See if this is the end of the file.
            endOfStream = !init(false);
            if (stoppedForEndOfMember || endOfStream) {
                return size == 0 ? -1 : size;
            }
        }
    }
    return size;
}

Example 3 with DataFormatException

use of java.util.zip.DataFormatException in project jetty.project by eclipse.

the class DeflateFrameExtension method incomingFrame.

@Override
public void incomingFrame(Frame frame) {
    if (frame.getType().isControl() || !frame.isRsv1() || !frame.hasPayload()) {
        nextIncomingFrame(frame);
        return;
    }
    try {
        ByteAccumulator accumulator = newByteAccumulator();
        decompress(accumulator, frame.getPayload());
        decompress(accumulator, TAIL_BYTES_BUF.slice());
        forwardIncoming(frame, accumulator);
    } catch (DataFormatException e) {
        throw new BadPayloadException(e);
    }
}

Example 4 with DataFormatException

use of java.util.zip.DataFormatException in project jetty.project by eclipse.

the class PerMessageDeflateExtension method incomingFrame.

@Override
public void incomingFrame(Frame frame) {
    // Subsequent continuation frames don't have RSV1 set, but are compressed.
    if (frame.getType().isData()) {
        incomingCompressed = frame.isRsv1();
    }
    if (OpCode.isControlFrame(frame.getOpCode()) || !incomingCompressed) {
        nextIncomingFrame(frame);
        return;
    }
    ByteAccumulator accumulator = newByteAccumulator();
    try {
        ByteBuffer payload = frame.getPayload();
        decompress(accumulator, payload);
        if (frame.isFin()) {
            decompress(accumulator, TAIL_BYTES_BUF.slice());
        }
        forwardIncoming(frame, accumulator);
    } catch (DataFormatException e) {
        throw new BadPayloadException(e);
    }
    if (frame.isFin())
        incomingCompressed = false;
}

Example 5 with DataFormatException

use of java.util.zip.DataFormatException in project phonegap-facebook-plugin by Wizcorp.

the class SpdyReader method readNameValueBlock.

private List<String> readNameValueBlock(int length) throws IOException {
    this.compressedLimit += length;
    try {
        int numberOfPairs = nameValueBlockIn.readInt();
        if (numberOfPairs < 0) {
            Logger.getLogger(getClass().getName()).warning("numberOfPairs < 0: " + numberOfPairs);
            throw ioException("numberOfPairs < 0");
        }
        List<String> entries = new ArrayList<String>(numberOfPairs * 2);
        for (int i = 0; i < numberOfPairs; i++) {
            String name = readString();
            String values = readString();
            if (name.length() == 0)
                throw ioException("name.length == 0");
            if (values.length() == 0)
                throw ioException("values.length == 0");
            entries.add(name);
            entries.add(values);
        }
        if (compressedLimit != 0) {
            Logger.getLogger(getClass().getName()).warning("compressedLimit > 0: " + compressedLimit);
        }
        return entries;
    } catch (DataFormatException e) {
        throw new IOException(e.getMessage());
    }
}