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| package main | |
| import ( | |
| "fmt" | |
| "golang.org/x/net/http2/hpack" | |
| ) | |
| func main() { | |
| fmt.Println("nginx", "→", Encode("MYWS")) | |
| fmt.Println("nginx", "→", Encode("nginx")) | |
| fmt.Println("apache", "→", Encode("apache")) | |
| fmt.Println("openresty+", "→", Encode("openresty+")) | |
| fmt.Println("-----") | |
| fmt.Println("\\x84\\xaa\\x63\\x55\\xe7", "→", Decode("\x84\xaa\x63\x55\xe7")) | |
| fmt.Println("\\x84\\x1d\\x63\\x24\\xe5", "→", Decode("\x84\x1d\x63\x24\xe5")) | |
| fmt.Println("\\x87\\x3d\\x65\\xaa\\xc2\\xa1\\x3e\\xbf\\xdf", "→", Decode("\x87\x3d\x65\xaa\xc2\xa1\x3e\xbf\xdf")) | |
| } | |
| func Encode(s string) string { | |
| var result string | |
| hd := hpack.AppendHuffmanString(nil, s) | |
| hl := hpack.HuffmanEncodeLength(s) | 0x80 | |
| result += RenderByte(byte(hl)) | |
| for _, b := range hd { | |
| result += RenderByte(b) | |
| } | |
| return result | |
| } | |
| func Decode(s string) string { | |
| data := []byte(s) | |
| result, _ := hpack.HuffmanDecodeToString(data[1:]) | |
| return result | |
| } | |
| func RenderByte(b byte) string { | |
| return fmt.Sprintf("\\x%x", b) | |
| } |
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