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48 lines
1.1 KiB
48 lines
1.1 KiB
package blackhole
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import (
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"github.com/xtls/xray-core/common"
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"github.com/xtls/xray-core/common/buf"
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)
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const (
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http403response = `HTTP/1.1 403 Forbidden
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Connection: close
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Cache-Control: max-age=3600, public
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Content-Length: 0
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`
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)
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// ResponseConfig is the configuration for blackhole responses.
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type ResponseConfig interface {
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// WriteTo writes a predefined response to the specified buffer.
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WriteTo(buf.Writer) int32
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}
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// WriteTo implements ResponseConfig.WriteTo().
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func (*NoneResponse) WriteTo(buf.Writer) int32 { return 0 }
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// WriteTo implements ResponseConfig.WriteTo().
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func (*HTTPResponse) WriteTo(writer buf.Writer) int32 {
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b := buf.New()
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common.Must2(b.WriteString(http403response))
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n := b.Len()
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writer.WriteMultiBuffer(buf.MultiBuffer{b})
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return n
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}
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// GetInternalResponse converts response settings from proto to internal data structure.
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func (c *Config) GetInternalResponse() (ResponseConfig, error) {
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if c.GetResponse() == nil {
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return new(NoneResponse), nil
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}
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config, err := c.GetResponse().GetInstance()
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if err != nil {
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return nil, err
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}
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return config.(ResponseConfig), nil
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}
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