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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-12-22 18:17:52 -05:00
v2fly/proxy/blackhole/blackhole.go
2022-01-02 15:16:23 +00:00

54 lines
1.5 KiB
Go

// Package blackhole is an outbound handler that blocks all connections.
package blackhole
//go:generate go run github.com/v2fly/v2ray-core/v5/common/errors/errorgen
import (
"context"
"time"
"github.com/v2fly/v2ray-core/v5/common"
"github.com/v2fly/v2ray-core/v5/transport"
"github.com/v2fly/v2ray-core/v5/transport/internet"
)
// Handler is an outbound connection that silently swallow the entire payload.
type Handler struct {
response ResponseConfig
}
// New creates a new blackhole handler.
func New(ctx context.Context, config *Config) (*Handler, error) {
response, err := config.GetInternalResponse()
if err != nil {
return nil, err
}
return &Handler{
response: response,
}, nil
}
// Process implements OutboundHandler.Dispatch().
func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
nBytes := h.response.WriteTo(link.Writer)
if nBytes > 0 {
// Sleep a little here to make sure the response is sent to client.
time.Sleep(time.Second)
}
common.Interrupt(link.Writer)
return nil
}
func init() {
common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
return New(ctx, config.(*Config))
}))
common.Must(common.RegisterConfig((*SimplifiedConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
simplifiedServer := config.(*SimplifiedConfig)
_ = simplifiedServer
fullConfig := &Config{}
return common.CreateObject(ctx, fullConfig)
}))
}