mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-16 21:56:40 -05:00
83b26975bd
* break up code and use lazy reading and pool bufio.Writer * close underlying connection when operation failed * allocate bufWriter and streamWriter only once * refactor record writing * rebase from master * handle err * Fix type assertion Also reduce some duplication * Refactor client and clientCloser for logging Should reduce allocations * Minor cosmetic adjustments; apply Apache license * Appease the linter Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
58 lines
1.3 KiB
Go
58 lines
1.3 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 fastcgi
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"errors"
|
|
"io"
|
|
)
|
|
|
|
type record struct {
|
|
h header
|
|
lr io.LimitedReader
|
|
padding int64
|
|
}
|
|
|
|
func (rec *record) fill(r io.Reader) (err error) {
|
|
rec.lr.N = rec.padding
|
|
rec.lr.R = r
|
|
if _, err = io.Copy(io.Discard, rec); err != nil {
|
|
return
|
|
}
|
|
|
|
if err = binary.Read(r, binary.BigEndian, &rec.h); err != nil {
|
|
return
|
|
}
|
|
if rec.h.Version != 1 {
|
|
err = errors.New("fcgi: invalid header version")
|
|
return
|
|
}
|
|
if rec.h.Type == EndRequest {
|
|
err = io.EOF
|
|
return
|
|
}
|
|
rec.lr.N = int64(rec.h.ContentLength)
|
|
rec.padding = int64(rec.h.PaddingLength)
|
|
return
|
|
}
|
|
|
|
func (rec *record) Read(p []byte) (n int, err error) {
|
|
return rec.lr.Read(p)
|
|
}
|
|
|
|
func (rec *record) hasMore() bool {
|
|
return rec.lr.N > 0
|
|
}
|