Imports github.com/cloudflare/golibs/lrucache github.com/miekg/dns github.com/shadowsocks/shadowsocks-go/shadowsocks golang.org/x/net/http2 golang.org/x/net/proxy Standard library imports crypto/tls encoding/json errors flag fmt io/ioutil log math/rand net net/http net/url os os/exec strconv strings sync sync/atomic syscall time