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Encapsulate WriteSiteNotFound error

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This commit is contained in:
Sergey Frolov 2017-07-25 14:47:57 -04:00
parent b63d9fdc68
commit ea245b5af5
1 changed files with 14 additions and 1 deletions
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15
caddyhttp/httpserver/server.go
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@ -366,7 +366,7 @@ func (s *Server) serveHTTP(w http.ResponseWriter, r *http.Request) (int, error)
if err != nil {
remoteHost = r.RemoteAddr
}
WriteTextResponse(w, http.StatusNotFound, "No such site at "+s.Server.Addr)
WriteSiteNotFound(w, r) // don't add headers outside of this function
log.Printf("[INFO] %s - No such site at %s (Remote: %s, Referer: %s)",
hostname, s.Server.Addr, remoteHost, r.Header.Get("Referer"))
return 0, nil
@ -490,6 +490,19 @@ func DefaultErrorFunc(w http.ResponseWriter, r *http.Request, status int) {
WriteTextResponse(w, status, fmt.Sprintf("%d %s\n", status, http.StatusText(status)))
}
const httpStatusMisdirectedRequest = 421 // RFC 7540, 9.1.2
// WriteSiteNotFound writes appropriate error code to w, signaling that
// requested host is not served by Caddy on a given port.
func WriteSiteNotFound(w http.ResponseWriter, r *http.Request) {
status := http.StatusNotFound
if r.ProtoMajor >= 2 {
// TODO: use http.StatusMisdirectedRequest when it gets defined
status = httpStatusMisdirectedRequest
}
WriteTextResponse(w, status, fmt.Sprintf("%d Site %s is not served on this interface\n", status, r.Host))
}
// WriteTextResponse writes body with code status to w. The body will
// be interpreted as plain text.
func WriteTextResponse(w http.ResponseWriter, status int, body string) {