harness-drone/handler/api/render/render.go
2019-02-27 23:07:13 -08:00

122 lines
3.7 KiB
Go

// Copyright 2019 Drone IO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package render
import (
"encoding/json"
"fmt"
"net/http"
"os"
"strconv"
"github.com/drone/drone/handler/api/errors"
)
// indent the json-encoded API responses
var indent bool
func init() {
indent, _ = strconv.ParseBool(
os.Getenv("HTTP_JSON_INDENT"),
)
}
var (
// ErrInvalidToken is returned when the api request token is invalid.
ErrInvalidToken = errors.New("Invalid or missing token")
// ErrUnauthorized is returned when the user is not authorized.
ErrUnauthorized = errors.New("Unauthorized")
// ErrForbidden is returned when user access is forbidden.
ErrForbidden = errors.New("Forbidden")
// ErrNotFound is returned when a resource is not found.
ErrNotFound = errors.New("Not Found")
// ErrNotImplemented is returned when an endpoint is not implemented.
ErrNotImplemented = errors.New("Not Implemented")
)
// ErrorCode writes the json-encoded error message to the response.
func ErrorCode(w http.ResponseWriter, err error, status int) {
JSON(w, &errors.Error{Message: err.Error()}, status)
}
// InternalError writes the json-encoded error message to the response
// with a 500 internal server error.
func InternalError(w http.ResponseWriter, err error) {
ErrorCode(w, err, 500)
}
// InternalErrorf writes the json-encoded error message to the response
// with a 500 internal server error.
func InternalErrorf(w http.ResponseWriter, format string, a ...interface{}) {
ErrorCode(w, fmt.Errorf(format, a...), 500)
}
// NotImplemented writes the json-encoded error message to the
// response with a 501 not found status code.
func NotImplemented(w http.ResponseWriter, err error) {
ErrorCode(w, err, 501)
}
// NotFound writes the json-encoded error message to the response
// with a 404 not found status code.
func NotFound(w http.ResponseWriter, err error) {
ErrorCode(w, err, 404)
}
// NotFoundf writes the json-encoded error message to the response
// with a 404 not found status code.
func NotFoundf(w http.ResponseWriter, format string, a ...interface{}) {
ErrorCode(w, fmt.Errorf(format, a...), 404)
}
// Unauthorized writes the json-encoded error message to the response
// with a 401 unauthorized status code.
func Unauthorized(w http.ResponseWriter, err error) {
ErrorCode(w, err, 401)
}
// Forbidden writes the json-encoded error message to the response
// with a 403 forbidden status code.
func Forbidden(w http.ResponseWriter, err error) {
ErrorCode(w, err, 403)
}
// BadRequest writes the json-encoded error message to the response
// with a 400 bad request status code.
func BadRequest(w http.ResponseWriter, err error) {
ErrorCode(w, err, 400)
}
// BadRequestf writes the json-encoded error message to the response
// with a 400 bad request status code.
func BadRequestf(w http.ResponseWriter, format string, a ...interface{}) {
ErrorCode(w, fmt.Errorf(format, a...), 400)
}
// JSON writes the json-encoded error message to the response
// with a 400 bad request status code.
func JSON(w http.ResponseWriter, v interface{}, status int) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
enc := json.NewEncoder(w)
if indent {
enc.SetIndent("", " ")
}
enc.Encode(v)
}