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// Copyright 2018 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package json
import (
"encoding/json"
"errors"
"net/http"
"github.com/miniflux/miniflux/logger"
)
// OK sends a JSON response with the status code 200.
func OK(w http.ResponseWriter, v interface{}) {
commonHeaders(w)
w.WriteHeader(http.StatusOK)
w.Write(toJSON(v))
}
// Created sends a JSON response with the status code 201.
func Created(w http.ResponseWriter, v interface{}) {
commonHeaders(w)
w.WriteHeader(http.StatusCreated)
w.Write(toJSON(v))
}
// NoContent sends a JSON response with the status code 204.
func NoContent(w http.ResponseWriter) {
commonHeaders(w)
w.WriteHeader(http.StatusNoContent)
}
// NotFound sends a JSON response with the status code 404.
func NotFound(w http.ResponseWriter, err error) {
logger.Error("[Not Found] %v", err)
commonHeaders(w)
w.WriteHeader(http.StatusNotFound)
w.Write(encodeError(err))
}
// ServerError sends a JSON response with the status code 500.
func ServerError(w http.ResponseWriter, err error) {
logger.Error("[Internal Server Error] %v", err)
commonHeaders(w)
w.WriteHeader(http.StatusInternalServerError)
if err != nil {
w.Write(encodeError(err))
}
}
// Forbidden sends a JSON response with the status code 403.
func Forbidden(w http.ResponseWriter) {
logger.Info("[Forbidden]")
commonHeaders(w)
w.WriteHeader(http.StatusForbidden)
w.Write(encodeError(errors.New("Access Forbidden")))
}
// Unauthorized sends a JSON response with the status code 401.
func Unauthorized(w http.ResponseWriter) {
commonHeaders(w)
w.WriteHeader(http.StatusUnauthorized)
w.Write(encodeError(errors.New("Access Unauthorized")))
}
// BadRequest sends a JSON response with the status code 400.
func BadRequest(w http.ResponseWriter, err error) {
logger.Error("[Bad Request] %v", err)
commonHeaders(w)
w.WriteHeader(http.StatusBadRequest)
if err != nil {
w.Write(encodeError(err))
}
}
func commonHeaders(w http.ResponseWriter) {
w.Header().Set("Accept", "application/json")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
}
func encodeError(err error) []byte {
type errorMsg struct {
ErrorMessage string `json:"error_message"`
}
tmp := errorMsg{ErrorMessage: err.Error()}
data, err := json.Marshal(tmp)
if err != nil {
logger.Error("json encoding error: %v", err)
}
return data
}
func toJSON(v interface{}) []byte {
b, err := json.Marshal(v)
if err != nil {
logger.Error("json encoding error: %v", err)
return []byte("")
}
return b
}
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