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listener.go
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listener.go
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package tcp
import (
"net"
"time"
"github.com/go-gost/core/listener"
"github.com/go-gost/core/logger"
md "github.com/go-gost/core/metadata"
admission "github.com/wznpp1/gost_x/admission/wrapper"
xnet "github.com/wznpp1/gost_x/internal/net"
"github.com/wznpp1/gost_x/internal/net/proxyproto"
climiter "github.com/wznpp1/gost_x/limiter/conn/wrapper"
limiter "github.com/wznpp1/gost_x/limiter/traffic/wrapper"
metrics "github.com/wznpp1/gost_x/metrics/wrapper"
"github.com/wznpp1/gost_x/registry"
)
func init() {
registry.ListenerRegistry().Register("tcp", NewListener)
}
type tcpListener struct {
ln net.Listener
logger logger.Logger
md metadata
options listener.Options
}
func NewListener(opts ...listener.Option) listener.Listener {
options := listener.Options{}
for _, opt := range opts {
opt(&options)
}
return &tcpListener{
logger: options.Logger,
options: options,
}
}
func (l *tcpListener) Init(md md.Metadata) (err error) {
if err = l.parseMetadata(md); err != nil {
return
}
network := "tcp"
if xnet.IsIPv4(l.options.Addr) {
network = "tcp4"
}
ln, err := net.Listen(network, l.options.Addr)
if err != nil {
return
}
l.logger.Debugf("pp: %d", l.options.ProxyProtocol)
ln = metrics.WrapListener(l.options.Service, ln)
ln = proxyproto.WrapListener(l.options.ProxyProtocol, ln, 10*time.Second)
ln = admission.WrapListener(l.options.Admission, ln)
ln = limiter.WrapListener(l.options.TrafficLimiter, ln)
ln = climiter.WrapListener(l.options.ConnLimiter, ln)
l.ln = ln
return
}
func (l *tcpListener) Accept() (conn net.Conn, err error) {
return l.ln.Accept()
}
func (l *tcpListener) Addr() net.Addr {
return l.ln.Addr()
}
func (l *tcpListener) Close() error {
return l.ln.Close()
}