Package org.jboss.netty.handler.codec.frame

Examples of org.jboss.netty.handler.codec.frame.CorruptedFrameException

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                byte fin = (byte) (b & 0x80);
                byte reserved = (byte) (b & 0x70);
                byte opcode = (byte) (b & 0x0F);

                if (reserved != 0) {
                    throw new CorruptedFrameException("Reserved bits set: " + bits(reserved));
                }
                if (!isOpcode(opcode)) {
                    throw new CorruptedFrameException("Invalid opcode " + hex(opcode));
                }

                if (fin == 0) {
                    if (fragmentOpcode == null) {
                        if (!isDataOpcode(opcode)) {
                            throw new CorruptedFrameException("Fragmented frame with invalid opcode " + hex(opcode));
                        }
                        fragmentOpcode = opcode;
                    } else if (opcode != OPCODE_CONT) {
                        throw new CorruptedFrameException("Continuation frame with invalid opcode " + hex(opcode));
                    }
                } else {
                    if (fragmentOpcode != null) {
                        if (!isControlOpcode(opcode) && opcode != OPCODE_CONT) {
                            throw new CorruptedFrameException("Final frame with invalid opcode " + hex(opcode));
                        }
                    } else if (opcode == OPCODE_CONT) {
                        throw new CorruptedFrameException("Final frame with invalid opcode " + hex(opcode));
                    }
                    this.opcode = opcode;
                }

                checkpoint(State.PARSING_LENGTH);
            case PARSING_LENGTH:
                b = buffer.readByte();
                byte masked = (byte) (b & 0x80);
                if (masked == 0) {
                    throw new CorruptedFrameException("Unmasked frame received");
                }

                int length = (byte) (b & 0x7F);

                if (length < 126) {
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        // Check the magic number.
        int magicNumber = buffer.readUnsignedByte();
        if (magicNumber != 'F') {
            buffer.resetReaderIndex();
            throw new CorruptedFrameException(
                    "Invalid magic number: " + magicNumber);
        }

        // Wait until the whole data is available.
        int dataLength = buffer.readInt();
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        // Check the magic number.
        int magicNumber = buffer.readUnsignedByte();
        if (magicNumber != 'F') {
            buffer.resetReaderIndex();
            throw new CorruptedFrameException(
                    "Invalid magic number: " + magicNumber);
        }

        // Wait until the whole data is available.
        int dataLength = buffer.readInt();
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                byte fin = (byte) (b & 0x80);
                byte reserved = (byte) (b & 0x70);
                byte opcode = (byte) (b & 0x0F);

                if (reserved != 0) {
                    throw new CorruptedFrameException("Reserved bits set: " + bits(reserved));
                }
                if (!isOpcode(opcode)) {
                    throw new CorruptedFrameException("Invalid opcode " + hex(opcode));
                }

                if (fin == 0) {
                    if (fragmentOpcode == null) {
                        if (!isDataOpcode(opcode)) {
                            throw new CorruptedFrameException("Fragmented frame with invalid opcode " + hex(opcode));
                        }
                        fragmentOpcode = opcode;
                    } else if (opcode != OPCODE_CONT) {
                        throw new CorruptedFrameException("Continuation frame with invalid opcode " + hex(opcode));
                    }
                } else {
                    if (fragmentOpcode != null) {
                        if (!isControlOpcode(opcode) && opcode != OPCODE_CONT) {
                            throw new CorruptedFrameException("Final frame with invalid opcode " + hex(opcode));
                        }
                    } else if (opcode == OPCODE_CONT) {
                        throw new CorruptedFrameException("Final frame with invalid opcode " + hex(opcode));
                    }
                    this.opcode = opcode;
                }

                checkpoint(State.PARSING_LENGTH);
            case PARSING_LENGTH:
                b = buffer.readByte();
                byte masked = (byte) (b & 0x80);
                if (masked == 0) {
                    throw new CorruptedFrameException("Unmasked frame received");
                }

                int length = (byte) (b & 0x7F);
                if (length < 126) {
                    currentFrameLength = length;
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        checkpoint(CORRUPT);
        if (channel.isConnected()) {
            channel.write(ChannelBuffers.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
            channel.close().awaitUninterruptibly();
        }
        throw new CorruptedFrameException(reason);
    }
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            buf[i] = buffer.readByte();
            if (buf[i] >= 0) {
                int length = CodedInputStream.newInstance(buf, 0, i + 1).readRawVarint32();
                if (length < 0) {
                    throw new CorruptedFrameException("negative length: " + length);
                }

                if (buffer.readableBytes() < length) {
                    buffer.resetReaderIndex();
                    return null;
                } else {
                    return buffer.readBytes(length);
                }
            }
        }

        // Couldn't find the byte whose MSB is off.
        throw new CorruptedFrameException("length wider than 32-bit");
    }
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        checkpoint(State.CORRUPT);
        if (channel.isConnected()) {
            channel.write(ChannelBuffers.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
            channel.close().awaitUninterruptibly();
        }
        throw new CorruptedFrameException(reason);
    }
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        // Check the magic number.
        int magicNumber = buffer.readUnsignedByte();
        if (magicNumber != 'F') {
            buffer.resetReaderIndex();
            throw new CorruptedFrameException(
                    "Invalid magic number: " + magicNumber);
        }

        // Wait until the whole data is available.
        int dataLength = buffer.readInt();
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    private void protocolViolation(Channel channel, String reason) throws CorruptedFrameException {
        checkpoint(State.CORRUPT);
        if (channel.isConnected()) {
            channel.write(ChannelBuffers.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
        }
        throw new CorruptedFrameException(reason);
    }
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            buf[i] = buffer.readByte();
            if (buf[i] >= 0) {
                int length = CodedInputStream.newInstance(buf, 0, i + 1).readRawVarint32();
                if (length < 0) {
                    throw new CorruptedFrameException("negative length: " + length);
                }

                if (buffer.readableBytes() < length) {
                    buffer.resetReaderIndex();
                    return null;
                } else {
                    return buffer.readBytes(length);
                }
            }
        }

        // Couldn't find the byte whose MSB is off.
        throw new CorruptedFrameException("length wider than 32-bit");
    }
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