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v2fly/proxy/blackhole/config.go
2017-11-09 22:33:15 +01:00

47 lines
1.1 KiB
Go

package blackhole
import (
"v2ray.com/core/common"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/serial"
)
const (
http403response = `HTTP/1.1 403 Forbidden
Connection: close
Cache-Control: max-age=3600, public
Content-Length: 0
`
)
// ResponseConfig is the configuration for blackhole responses.
type ResponseConfig interface {
// WriteTo writes predefined response to the give buffer.
WriteTo(buf.Writer)
}
// WriteTo implements ResponseConfig.WriteTo().
func (*NoneResponse) WriteTo(buf.Writer) {}
// WriteTo implements ResponseConfig.WriteTo().
func (*HTTPResponse) WriteTo(writer buf.Writer) {
b := buf.NewLocal(512)
common.Must(b.AppendSupplier(serial.WriteString(http403response)))
writer.WriteMultiBuffer(buf.NewMultiBufferValue(b))
}
// GetInternalResponse converts response settings from proto to internal data structure.
func (c *Config) GetInternalResponse() (ResponseConfig, error) {
if c.GetResponse() == nil {
return new(NoneResponse), nil
}
config, err := c.GetResponse().GetInstance()
if err != nil {
return nil, err
}
return config.(ResponseConfig), nil
}