update

Hunter0x7c7

2022-08-11 b8230139fb40edea387617b6accd8371e37eda58

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package blackhole 
 
import ( 
    "github.com/v2fly/v2ray-core/v5/common" 
    "github.com/v2fly/v2ray-core/v5/common/buf" 
    "github.com/v2fly/v2ray-core/v5/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) int32 
} 
 
// WriteTo implements ResponseConfig.WriteTo(). 
func (*NoneResponse) WriteTo(buf.Writer) int32 { return 0 } 
 
// WriteTo implements ResponseConfig.WriteTo(). 
func (*HTTPResponse) WriteTo(writer buf.Writer) int32 { 
    b := buf.New() 
    common.Must2(b.WriteString(http403response)) 
    n := b.Len() 
    writer.WriteMultiBuffer(buf.MultiBuffer{b}) 
    return n 
} 
 
// 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 := serial.GetInstanceOf(c.GetResponse()) 
    if err != nil { 
        return nil, err 
    } 
    return config.(ResponseConfig), nil 
}