Method handleAdapt

caddyconfig/load.go:137–175

handleAdapt adapts the given Caddy config to JSON and responds with the result.

(w http.ResponseWriter, r *http.Request)

// handleAdapt adapts the given Caddy config to JSON and responds with the result.
func (adminLoad) handleAdapt(w http.ResponseWriter, r *http.Request) error {
	if r.Method != http.MethodPost {
		return caddy.APIError{
			HTTPStatus: http.StatusMethodNotAllowed,
			Err:        fmt.Errorf("method not allowed"),
		}
	}

	buf := bufPool.Get().(*bytes.Buffer)
	buf.Reset()
	defer bufPool.Put(buf)

	_, err := io.Copy(buf, r.Body)
	if err != nil {
		return caddy.APIError{
			HTTPStatus: http.StatusBadRequest,
			Err:        fmt.Errorf("reading request body: %v", err),
		}
	}

	result, warnings, err := adaptByContentType(r.Header.Get("Content-Type"), buf.Bytes())
	if err != nil {
		return caddy.APIError{
			HTTPStatus: http.StatusBadRequest,
			Err:        err,
		}
	}

	out := struct {
		Warnings []Warning       `json:"warnings,omitempty"`
		Result   json.RawMessage `json:"result"`
	}{
		Warnings: warnings,
		Result:   result,
	}

	w.Header().Set("Content-Type", "application/json")
	return json.NewEncoder(w).Encode(out)
}

// adaptByContentType adapts body to Caddy JSON using the adapter specified by contentType.
// If contentType is empty or ends with "/json", the input will be returned, as a no-op.