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							61 lines
						
					
					
						
							1.9 KiB
						
					
					
				| // Copyright 2015 Matthew Holt and The Caddy Authors | |
| // | |
| // Licensed under the Apache License, Version 2.0 (the "License"); | |
| // you may not use this file except in compliance with the License. | |
| // You may obtain a copy of the License at | |
| // | |
| //     http://www.apache.org/licenses/LICENSE-2.0 | |
| // | |
| // Unless required by applicable law or agreed to in writing, software | |
| // distributed under the License is distributed on an "AS IS" BASIS, | |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| // See the License for the specific language governing permissions and | |
| // limitations under the License. | |
|  | |
| package caddyzstd | |
| 
 | |
| import ( | |
| 	"github.com/caddyserver/caddy/v2" | |
| 	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile" | |
| 	"github.com/caddyserver/caddy/v2/modules/caddyhttp/encode" | |
| 	"github.com/klauspost/compress/zstd" | |
| ) | |
| 
 | |
| func init() { | |
| 	caddy.RegisterModule(Zstd{}) | |
| } | |
| 
 | |
| // Zstd can create Zstandard encoders. | |
| type Zstd struct{} | |
| 
 | |
| // CaddyModule returns the Caddy module information. | |
| func (Zstd) CaddyModule() caddy.ModuleInfo { | |
| 	return caddy.ModuleInfo{ | |
| 		ID:  "http.encoders.zstd", | |
| 		New: func() caddy.Module { return new(Zstd) }, | |
| 	} | |
| } | |
| 
 | |
| // UnmarshalCaddyfile sets up the handler from Caddyfile tokens. | |
| func (z *Zstd) UnmarshalCaddyfile(d *caddyfile.Dispenser) error { | |
| 	return nil | |
| } | |
| 
 | |
| // AcceptEncoding returns the name of the encoding as | |
| // used in the Accept-Encoding request headers. | |
| func (Zstd) AcceptEncoding() string { return "zstd" } | |
| 
 | |
| // NewEncoder returns a new gzip writer. | |
| func (z Zstd) NewEncoder() encode.Encoder { | |
| 	// The default of 8MB for the window is | |
| 	// too large for many clients, so we limit | |
| 	// it to 128K to lighten their load. | |
| 	writer, _ := zstd.NewWriter(nil, zstd.WithWindowSize(128<<10), zstd.WithEncoderConcurrency(1), zstd.WithZeroFrames(true)) | |
| 	return writer | |
| } | |
| 
 | |
| // Interface guards | |
| var ( | |
| 	_ encode.Encoding       = (*Zstd)(nil) | |
| 	_ caddyfile.Unmarshaler = (*Zstd)(nil) | |
| )
 | |
| 
 |