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v2fly/proxy/blackhole/blackhole.go

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package blackhole
import (
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"v2ray.com/core/app"
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"v2ray.com/core/common/buf"
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v2net "v2ray.com/core/common/net"
"v2ray.com/core/proxy"
"v2ray.com/core/transport/ray"
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)
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// Handler is an outbound connection that sliently swallow the entire payload.
type Handler struct {
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meta *proxy.OutboundHandlerMeta
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response ResponseConfig
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}
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// New creates a new blackhole handler.
func New(space app.Space, config *Config, meta *proxy.OutboundHandlerMeta) (proxy.OutboundHandler, error) {
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response, err := config.GetInternalResponse()
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if err != nil {
return nil, err
}
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return &Handler{
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meta: meta,
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response: response,
}, nil
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}
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// Dispatch implements OutboundHandler.Dispatch().
func (v *Handler) Dispatch(destination v2net.Destination, payload *buf.Buffer, ray ray.OutboundRay) {
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payload.Release()
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v.response.WriteTo(ray.OutboundOutput())
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ray.OutboundOutput().Close()
ray.OutboundInput().Release()
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}
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// Factory is an utility for creating blackhole handlers.
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type Factory struct{}
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// StreamCapability implements OutboundHandlerFactory.StreamCapability().
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func (v *Factory) StreamCapability() v2net.NetworkList {
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return v2net.NetworkList{
Network: []v2net.Network{v2net.Network_RawTCP},
}
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}
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// Create implements OutboundHandlerFactory.Create().
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func (v *Factory) Create(space app.Space, config interface{}, meta *proxy.OutboundHandlerMeta) (proxy.OutboundHandler, error) {
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return New(space, config.(*Config), meta)
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}