forked from ebhomengo/niki
45 lines
999 B
Go
45 lines
999 B
Go
// SPDX-License-Identifier: MIT
|
|
// SPDX-FileCopyrightText: © 2015 LabStack LLC and Echo contributors
|
|
|
|
//go:build !go1.20
|
|
|
|
package echo
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
)
|
|
|
|
// TODO: remove when Go 1.23 is released and we do not support 1.19 anymore
|
|
func responseControllerFlush(rw http.ResponseWriter) error {
|
|
for {
|
|
switch t := rw.(type) {
|
|
case interface{ FlushError() error }:
|
|
return t.FlushError()
|
|
case http.Flusher:
|
|
t.Flush()
|
|
return nil
|
|
case interface{ Unwrap() http.ResponseWriter }:
|
|
rw = t.Unwrap()
|
|
default:
|
|
return fmt.Errorf("%w", http.ErrNotSupported)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: remove when Go 1.23 is released and we do not support 1.19 anymore
|
|
func responseControllerHijack(rw http.ResponseWriter) (net.Conn, *bufio.ReadWriter, error) {
|
|
for {
|
|
switch t := rw.(type) {
|
|
case http.Hijacker:
|
|
return t.Hijack()
|
|
case interface{ Unwrap() http.ResponseWriter }:
|
|
rw = t.Unwrap()
|
|
default:
|
|
return nil, nil, fmt.Errorf("%w", http.ErrNotSupported)
|
|
}
|
|
}
|
|
}
|