Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS
Mirrored from https://github.com/Slazee/caddy.git
Synced Nov 11, 02:15 UTC
| 1 | // Copyright 2015 Matthew Holt and The Caddy Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package fastcgi |
| 16 | |
| 17 | import ( |
| 18 | "encoding/binary" |
| 19 | "errors" |
| 20 | "io" |
| 21 | ) |
| 22 | |
| 23 | type record struct { |
| 24 | h header |
| 25 | lr io.LimitedReader |
| 26 | padding int64 |
| 27 | } |
| 28 | |
| 29 | func (rec *record) fill(r io.Reader) (err error) { |
| 30 | rec.lr.N = rec.padding |
| 31 | rec.lr.R = r |
| 32 | if _, err = io.Copy(io.Discard, rec); err != nil { |
| 33 | return err |
| 34 | } |
| 35 | |
| 36 | if err = binary.Read(r, binary.BigEndian, &rec.h); err != nil { |
| 37 | return err |
| 38 | } |
| 39 | if rec.h.Version != 1 { |
| 40 | err = errors.New("fcgi: invalid header version") |
| 41 | return err |
| 42 | } |
| 43 | if rec.h.Type == EndRequest { |
| 44 | err = io.EOF |
| 45 | return err |
| 46 | } |
| 47 | rec.lr.N = int64(rec.h.ContentLength) |
| 48 | rec.padding = int64(rec.h.PaddingLength) |
| 49 | return err |
| 50 | } |
| 51 | |
| 52 | func (rec *record) Read(p []byte) (n int, err error) { |
| 53 | return rec.lr.Read(p) |
| 54 | } |
| 55 | |
| 56 | func (rec *record) hasMore() bool { |
| 57 | return rec.lr.N > 0 |
| 58 | } |