2011shenlin commented on code in PR #5123:
URL: https://github.com/apache/rocketmq/pull/5123#discussion_r979906183
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remoting/src/main/java/org/apache/rocketmq/remoting/netty/NettyRemotingClient.java:
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@@ -271,6 +290,83 @@ public void run() {
}
+ private Map.Entry<String, SocksProxyConfig> getProxy(String addr) {
+ String[] addrArr = addr.split(":");
+ for (Map.Entry<String, SocksProxyConfig> entry : proxyMap.entrySet()) {
+ String cidr = entry.getKey();
+ if (RemotingHelper.ipInCIDR(addrArr[0], cidr)) {
+ return entry;
+ }
+ }
+ return null;
+ }
+
+ private Bootstrap fetchBootstrap(String addr) {
+ Map.Entry<String, SocksProxyConfig> proxyEntry = getProxy(addr);
+ if (proxyEntry == null) {
+ return bootstrap;
+ }
+
+ String cidr = proxyEntry.getKey();
+ SocksProxyConfig socksProxyConfig = proxyEntry.getValue();
+
+ LOGGER.info("Netty fetch bootstrap, addr: {}, cidr: {}, proxy: {}",
+ addr, cidr, socksProxyConfig != null ? socksProxyConfig.getAddr()
: "");
+
+ Bootstrap bootstrapWithProxy = bootstrapMap.get(cidr);
+ if (bootstrapWithProxy == null) {
+ bootstrapWithProxy = createBootstrap(socksProxyConfig);
+ Bootstrap old = bootstrapMap.putIfAbsent(cidr, bootstrapWithProxy);
+ if (old != null) {
+ bootstrapWithProxy = old;
+ }
+ }
+ return bootstrapWithProxy;
+ }
+
+ private Bootstrap createBootstrap(final SocksProxyConfig proxy) {
+ Bootstrap bootstrap = new Bootstrap();
+
bootstrap.group(this.eventLoopGroupWorker).channel(NioSocketChannel.class)
+ .option(ChannelOption.TCP_NODELAY, true)
+ .option(ChannelOption.SO_KEEPALIVE, false)
+ .option(ChannelOption.CONNECT_TIMEOUT_MILLIS,
nettyClientConfig.getConnectTimeoutMillis())
+ .option(ChannelOption.SO_SNDBUF,
nettyClientConfig.getClientSocketSndBufSize())
+ .option(ChannelOption.SO_RCVBUF,
nettyClientConfig.getClientSocketRcvBufSize())
+ .handler(new ChannelInitializer<SocketChannel>() {
+ @Override
+ public void initChannel(SocketChannel ch) {
+ ChannelPipeline pipeline = ch.pipeline();
+ if (nettyClientConfig.isUseTLS()) {
+ if (null != sslContext) {
+ pipeline.addFirst(defaultEventExecutorGroup,
+ "sslHandler",
sslContext.newHandler(ch.alloc()));
+ LOGGER.info("Prepend SSL handler");
+ } else {
+ LOGGER.warn("Connections are insecure as
SSLContext is null!");
+ }
+ }
+
+ // Netty Socks5 Proxy
+ if (proxy != null) {
+ String[] arr = proxy.getAddr().split(":");
+ pipeline.addFirst(new Socks5ProxyHandler(
+ new InetSocketAddress(arr[0],
Integer.parseInt(arr[1])),
+ proxy.getUsername(), proxy.getPassword()));
+ }
+
+ pipeline.addLast(
+ nettyClientConfig.isDisableNettyWorkerGroup() ? null :
defaultEventExecutorGroup,
+ new NettyEncoder(),
+ new NettyDecoder(),
+ new IdleStateHandler(0, 0,
nettyClientConfig.getClientChannelMaxIdleTimeSeconds()),
+ new NettyConnectManageHandler(),
+ new NettyClientHandler());
+ }
+ });
+
+ return bootstrap;
Review Comment:
when use socks, DNS should be privided by the target network.
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