52 lines
1011 B
Go
52 lines
1011 B
Go
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package main
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import (
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"socks5"
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"golang.org/x/net/context"
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"golang.org/x/net/proxy"
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"net"
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"os"
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"fmt"
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"strings"
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)
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func main() {
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args := os.Args[1:]
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if len(args) < 2 {
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fmt.Printf("usage: %s bindaddr upstreamaddr\n", os.Args[0])
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return
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}
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upstream, err:= proxy.SOCKS5("tcp", os.Args[2], nil, nil)
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if err != nil {
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fmt.Printf("failed to create upstream proxy to %s, %s", os.Args[2], err.Error())
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return
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}
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serv, err := socks5.New(&socks5.Config{
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Dial: func(_ context.Context, network, addr string) (net.Conn, error) {
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host, _, err := net.SplitHostPort(addr)
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if err != nil {
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return nil, err
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}
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if strings.HasSuffix(host, ".onion") {
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return upstream.Dial(network, addr)
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}
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return net.Dial(network, addr)
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},
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})
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if err != nil {
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fmt.Printf("failed to create socks proxy %s", err.Error())
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return
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}
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l, err := net.Listen("tcp", os.Args[1])
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if err != nil {
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fmt.Printf("failed to listen on %s, %s", os.Args[1], err.Error())
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return
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}
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serv.Serve(l)
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}
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