traefik/vendor/github.com/vulcand/oxy/utils/handler.go

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2017-02-07 21:33:23 +00:00
package utils
import (
"io"
"net"
"net/http"
)
type ErrorHandler interface {
ServeHTTP(w http.ResponseWriter, req *http.Request, err error)
}
var DefaultHandler ErrorHandler = &StdHandler{}
type StdHandler struct {
}
func (e *StdHandler) ServeHTTP(w http.ResponseWriter, req *http.Request, err error) {
statusCode := http.StatusInternalServerError
if e, ok := err.(net.Error); ok {
if e.Timeout() {
statusCode = http.StatusGatewayTimeout
} else {
statusCode = http.StatusBadGateway
}
} else if err == io.EOF {
statusCode = http.StatusBadGateway
}
w.WriteHeader(statusCode)
w.Write([]byte(http.StatusText(statusCode)))
}
type ErrorHandlerFunc func(http.ResponseWriter, *http.Request, error)
// ServeHTTP calls f(w, r).
func (f ErrorHandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request, err error) {
f(w, r, err)
}