Update README and minor refactor
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README-EN.md
27
README-EN.md
@ -33,34 +33,31 @@ $ cargo install fourth
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## Configuration
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Fourth will read yaml format configuration file from `/etc/fourth/config.yaml`, here is an example:
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Fourth will read yaml format configuration file from `/etc/fourth/config.yaml`, here is an minimal viable example:
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```yaml
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version: 1
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log: info
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servers:
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example_server:
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listen:
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- "0.0.0.0:443"
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- "[::]:443"
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tls: true # Enable TLS features like SNI
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sni:
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proxy.example.com: proxy
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www.example.com: nginx
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default: ban
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relay_server:
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proxy_server:
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listen:
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- "127.0.0.1:8081"
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default: remote
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upstream:
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nginx: "127.0.0.1:8080"
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proxy: "127.0.0.1:1024"
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remote: "www.remote.example.com:8082" # proxy to remote address
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remote: "tcp://www.remote.example.com:8082" # proxy to remote address
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```
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Built-in two upstreams: ban(terminate connection immediately), echo
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Built-in two upstreams: ban(terminate connection immediately), echo. For detailed configuration, check [this example](./example-config.yaml).
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## Performance Benchmark
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Tested on 4C2G server:
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Use fourth to proxy to Nginx(QPS of direct connection: ~120000): ~70000 req/s (Command: `wrk -t200 -c1000 -d120s --latency http://proxy-server:8081`)
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Use fourth to proxy to local iperf3: 8Gbps
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## Thanks
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@ -67,31 +67,33 @@ async fn process(
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match upstream {
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Upstream::Ban => {
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let _ = inbound.shutdown();
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Ok(())
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}
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Upstream::Echo => {
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let (mut ri, mut wi) = io::split(inbound);
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let inbound_to_inbound = copy(&mut ri, &mut wi);
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let bytes_tx = inbound_to_inbound.await;
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debug!("Bytes read: {:?}", bytes_tx);
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Ok(())
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}
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Upstream::Custom(custom) => {
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let outbound = TcpStream::connect(custom.addr.clone()).await?;
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match custom.protocol.as_ref() {
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"tcp" => {
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let outbound = TcpStream::connect(custom.addr.clone()).await?;
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let (mut ri, mut wi) = io::split(inbound);
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let (mut ro, mut wo) = io::split(outbound);
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let (mut ri, mut wi) = io::split(inbound);
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let (mut ro, mut wo) = io::split(outbound);
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let inbound_to_outbound = copy(&mut ri, &mut wo);
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let outbound_to_inbound = copy(&mut ro, &mut wi);
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let inbound_to_outbound = copy(&mut ri, &mut wo);
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let outbound_to_inbound = copy(&mut ro, &mut wi);
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let (bytes_tx, bytes_rx) = try_join(inbound_to_outbound, outbound_to_inbound).await?;
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let (bytes_tx, bytes_rx) = try_join(inbound_to_outbound, outbound_to_inbound).await?;
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debug!("Bytes read: {:?} write: {:?}", bytes_tx, bytes_rx);
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Ok(())
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debug!("Bytes read: {:?} write: {:?}", bytes_tx, bytes_rx);
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}
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_ => {}
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}
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}
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}
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};
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Ok(())
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}
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async fn copy<'a, R, W>(reader: &'a mut R, writer: &'a mut W) -> io::Result<u64>
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@ -86,31 +86,33 @@ async fn process(
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match upstream {
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Upstream::Ban => {
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let _ = inbound.shutdown();
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Ok(())
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}
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Upstream::Echo => {
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let (mut ri, mut wi) = io::split(inbound);
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let inbound_to_inbound = copy(&mut ri, &mut wi);
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let bytes_tx = inbound_to_inbound.await;
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debug!("Bytes read: {:?}", bytes_tx);
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Ok(())
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}
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Upstream::Custom(custom) => {
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let outbound = TcpStream::connect(custom.addr.clone()).await?;
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match custom.protocol.as_ref() {
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"tcp" => {
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let outbound = TcpStream::connect(custom.addr.clone()).await?;
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let (mut ri, mut wi) = io::split(inbound);
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let (mut ro, mut wo) = io::split(outbound);
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let (mut ri, mut wi) = io::split(inbound);
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let (mut ro, mut wo) = io::split(outbound);
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let inbound_to_outbound = copy(&mut ri, &mut wo);
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let outbound_to_inbound = copy(&mut ro, &mut wi);
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let inbound_to_outbound = copy(&mut ri, &mut wo);
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let outbound_to_inbound = copy(&mut ro, &mut wi);
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let (bytes_tx, bytes_rx) = try_join(inbound_to_outbound, outbound_to_inbound).await?;
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let (bytes_tx, bytes_rx) = try_join(inbound_to_outbound, outbound_to_inbound).await?;
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debug!("Bytes read: {:?} write: {:?}", bytes_tx, bytes_rx);
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Ok(())
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debug!("Bytes read: {:?} write: {:?}", bytes_tx, bytes_rx);
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}
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_ => {}
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}
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}
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}
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};
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Ok(())
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}
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async fn copy<'a, R, W>(reader: &'a mut R, writer: &'a mut W) -> io::Result<u64>
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