58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package tracing
|
|
|
|
import (
|
|
"bufio"
|
|
"net"
|
|
"net/http"
|
|
)
|
|
|
|
type statusCodeRecoder interface {
|
|
http.ResponseWriter
|
|
Status() int
|
|
}
|
|
|
|
// newStatusCodeRecoder returns an initialized statusCodeRecoder.
|
|
func newStatusCodeRecoder(rw http.ResponseWriter, status int) statusCodeRecoder {
|
|
recorder := &statusCodeWithoutCloseNotify{rw, status}
|
|
if _, ok := rw.(http.CloseNotifier); ok {
|
|
return &statusCodeWithCloseNotify{recorder}
|
|
}
|
|
return recorder
|
|
}
|
|
|
|
type statusCodeWithoutCloseNotify struct {
|
|
http.ResponseWriter
|
|
status int
|
|
}
|
|
|
|
// WriteHeader captures the status code for later retrieval.
|
|
func (s *statusCodeWithoutCloseNotify) WriteHeader(status int) {
|
|
s.status = status
|
|
s.ResponseWriter.WriteHeader(status)
|
|
}
|
|
|
|
// Status get response status.
|
|
func (s *statusCodeWithoutCloseNotify) Status() int {
|
|
return s.status
|
|
}
|
|
|
|
// Hijack hijacks the connection.
|
|
func (s *statusCodeWithoutCloseNotify) Hijack() (net.Conn, *bufio.ReadWriter, error) {
|
|
return s.ResponseWriter.(http.Hijacker).Hijack()
|
|
}
|
|
|
|
// Flush sends any buffered data to the client.
|
|
func (s *statusCodeWithoutCloseNotify) Flush() {
|
|
if flusher, ok := s.ResponseWriter.(http.Flusher); ok {
|
|
flusher.Flush()
|
|
}
|
|
}
|
|
|
|
type statusCodeWithCloseNotify struct {
|
|
*statusCodeWithoutCloseNotify
|
|
}
|
|
|
|
func (s *statusCodeWithCloseNotify) CloseNotify() <-chan bool {
|
|
return s.ResponseWriter.(http.CloseNotifier).CloseNotify()
|
|
}
|