Examples with ClientAuth com.alibaba.otter.canal.protocol.AdminPacket.ClientAuth used on opensource projects

Example 1 with ClientAuth

use of com.alibaba.otter.canal.protocol.AdminPacket.ClientAuth in project canal by alibaba.

the class ClientAuthenticationHandler method messageReceived.

public void messageReceived(final ChannelHandlerContext ctx, MessageEvent e) throws Exception {
    ChannelBuffer buffer = (ChannelBuffer) e.getMessage();
    final Packet packet = Packet.parseFrom(buffer.readBytes(buffer.readableBytes()).array());
    switch(packet.getVersion()) {
        case SUPPORTED_VERSION:
        default:
            final ClientAuth clientAuth = ClientAuth.parseFrom(packet.getBody());
            if (seed == null) {
                byte[] errorBytes = AdminNettyUtils.errorPacket(300, MessageFormatter.format("auth failed for seed is null", clientAuth.getUsername()).getMessage());
                AdminNettyUtils.write(ctx.getChannel(), errorBytes);
            }
            if (!canalAdmin.auth(clientAuth.getUsername(), clientAuth.getPassword().toStringUtf8(), seed)) {
                byte[] errorBytes = AdminNettyUtils.errorPacket(300, MessageFormatter.format("auth failed for user:{}", clientAuth.getUsername()).getMessage());
                AdminNettyUtils.write(ctx.getChannel(), errorBytes);
            }
            byte[] ackBytes = AdminNettyUtils.ackPacket();
            AdminNettyUtils.write(ctx.getChannel(), ackBytes, future -> {
                logger.info("remove unused channel handlers after authentication is done successfully.");
                ctx.getPipeline().remove(HandshakeInitializationHandler.class.getName());
                ctx.getPipeline().remove(ClientAuthenticationHandler.class.getName());
                int readTimeout = defaultSubscriptorDisconnectIdleTimeout;
                int writeTimeout = defaultSubscriptorDisconnectIdleTimeout;
                if (clientAuth.getNetReadTimeout() > 0) {
                    readTimeout = clientAuth.getNetReadTimeout();
                }
                if (clientAuth.getNetWriteTimeout() > 0) {
                    writeTimeout = clientAuth.getNetWriteTimeout();
                }
                // fix bug: soTimeout parameter's unit from connector is
                // millseconds.
                IdleStateHandler idleStateHandler = new IdleStateHandler(NettyUtils.hashedWheelTimer, readTimeout, writeTimeout, 0, TimeUnit.MILLISECONDS);
                ctx.getPipeline().addBefore(SessionHandler.class.getName(), IdleStateHandler.class.getName(), idleStateHandler);
                IdleStateAwareChannelHandler idleStateAwareChannelHandler = new IdleStateAwareChannelHandler() {

                    public void channelIdle(ChannelHandlerContext ctx1, IdleStateEvent e1) throws Exception {
                        logger.warn("channel:{} idle timeout exceeds, close channel to save server resources...", ctx1.getChannel());
                        ctx1.getChannel().close();
                    }
                };
                ctx.getPipeline().addBefore(SessionHandler.class.getName(), IdleStateAwareChannelHandler.class.getName(), idleStateAwareChannelHandler);
            });
            break;
    }
}

Example 2 with ClientAuth

use of com.alibaba.otter.canal.protocol.AdminPacket.ClientAuth in project canal by alibaba.

the class SimpleAdminConnector method connect.

@Override
public void connect() throws ServiceException {
    try {
        if (connected) {
            return;
        }
        channel = SocketChannel.open();
        channel.socket().setSoTimeout(soTimeout);
        channel.connect(address);
        readableChannel = Channels.newChannel(channel.socket().getInputStream());
        writableChannel = Channels.newChannel(channel.socket().getOutputStream());
        Packet p = Packet.parseFrom(readNextPacket());
        if (p.getVersion() != 1) {
            throw new CanalClientException("unsupported version at this client.");
        }
        if (p.getType() != PacketType.HANDSHAKE) {
            throw new CanalClientException("expect handshake but found other type.");
        }
        Handshake handshake = Handshake.parseFrom(p.getBody());
        // seed for auth
        ByteString seed = handshake.getSeeds();
        String newPasswd = passwd;
        if (passwd != null) {
            // encode passwd
            newPasswd = SecurityUtil.byte2HexStr(SecurityUtil.scramble411(passwd.getBytes(), seed.toByteArray()));
        }
        ClientAuth ca = ClientAuth.newBuilder().setUsername(user != null ? user : "").setPassword(ByteString.copyFromUtf8(newPasswd != null ? newPasswd : "")).setNetReadTimeout(idleTimeout).setNetWriteTimeout(idleTimeout).build();
        writeWithHeader(Packet.newBuilder().setType(PacketType.CLIENTAUTHENTICATION).setBody(ca.toByteString()).build().toByteArray());
        // 
        Packet ack = Packet.parseFrom(readNextPacket());
        if (ack.getType() != PacketType.ACK) {
            throw new CanalClientException("unexpected packet type when ack is expected");
        }
        Ack ackBody = Ack.parseFrom(ack.getBody());
        if (ackBody.getCode() > 0) {
            throw new ServiceException("something goes wrong when doing authentication: " + ackBody.getMessage());
        }
        connected = true;
    } catch (IOException | NoSuchAlgorithmException e) {
        throw new ServiceException(e);
    }
}