mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-28 14:43:48 +03:00
69c914483d
* Tweak compression settings zstd: Limit window sizes to 128K to keep memory in control both server and client size. zstd: Write 0 length frames. This may be needed for compatibility. zstd: Create fewer encoders. Small memory improvement. gzip: Allow -2 (Huffman only) and -3 (stateless) compression modes. * Update modules/caddyhttp/encode/zstd/zstd.go Update docs. Co-authored-by: Francis Lavoie <lavofr@gmail.com> Co-authored-by: Francis Lavoie <lavofr@gmail.com>
98 lines
2.5 KiB
Go
98 lines
2.5 KiB
Go
// 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 caddygzip
|
|
|
|
import (
|
|
"fmt"
|
|
"strconv"
|
|
|
|
"github.com/caddyserver/caddy/v2"
|
|
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
|
|
"github.com/caddyserver/caddy/v2/modules/caddyhttp/encode"
|
|
"github.com/klauspost/compress/gzip"
|
|
)
|
|
|
|
func init() {
|
|
caddy.RegisterModule(Gzip{})
|
|
}
|
|
|
|
// Gzip can create gzip encoders.
|
|
type Gzip struct {
|
|
Level int `json:"level,omitempty"`
|
|
}
|
|
|
|
// CaddyModule returns the Caddy module information.
|
|
func (Gzip) CaddyModule() caddy.ModuleInfo {
|
|
return caddy.ModuleInfo{
|
|
ID: "http.encoders.gzip",
|
|
New: func() caddy.Module { return new(Gzip) },
|
|
}
|
|
}
|
|
|
|
// UnmarshalCaddyfile sets up the handler from Caddyfile tokens.
|
|
func (g *Gzip) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
|
|
for d.Next() {
|
|
if !d.NextArg() {
|
|
continue
|
|
}
|
|
levelStr := d.Val()
|
|
level, err := strconv.Atoi(levelStr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
g.Level = level
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Provision provisions g's configuration.
|
|
func (g *Gzip) Provision(ctx caddy.Context) error {
|
|
if g.Level == 0 {
|
|
g.Level = defaultGzipLevel
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Validate validates g's configuration.
|
|
func (g Gzip) Validate() error {
|
|
if g.Level < gzip.StatelessCompression {
|
|
return fmt.Errorf("quality too low; must be >= %d", gzip.StatelessCompression)
|
|
}
|
|
if g.Level > gzip.BestCompression {
|
|
return fmt.Errorf("quality too high; must be <= %d", gzip.BestCompression)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// AcceptEncoding returns the name of the encoding as
|
|
// used in the Accept-Encoding request headers.
|
|
func (Gzip) AcceptEncoding() string { return "gzip" }
|
|
|
|
// NewEncoder returns a new gzip writer.
|
|
func (g Gzip) NewEncoder() encode.Encoder {
|
|
writer, _ := gzip.NewWriterLevel(nil, g.Level)
|
|
return writer
|
|
}
|
|
|
|
// Informed from http://blog.klauspost.com/gzip-performance-for-go-webservers/
|
|
var defaultGzipLevel = 5
|
|
|
|
// Interface guards
|
|
var (
|
|
_ encode.Encoding = (*Gzip)(nil)
|
|
_ caddy.Provisioner = (*Gzip)(nil)
|
|
_ caddy.Validator = (*Gzip)(nil)
|
|
_ caddyfile.Unmarshaler = (*Gzip)(nil)
|
|
)
|