utils/http: remove unused pkg

utils/http/http.go

@@ -1,77 +0,0 @@
-// Copyright 2017 clair authors
-//
-// 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 http provides utility functions for HTTP servers and clients.
-package http
-
-import (
-	"encoding/json"
-	"io"
-	"net/http"
-
-	"github.com/coreos/clair/database"
-	"github.com/coreos/clair/pkg/commonerr"
-	"github.com/coreos/clair/pkg/tarutil"
-	"github.com/coreos/clair/worker"
-)
-
-// MaxBodySize is the maximum number of bytes that ParseHTTPBody reads from an http.Request.Body.
-const MaxBodySize int64 = 1048576
-
-// WriteHTTP writes a JSON-encoded object to a http.ResponseWriter, as well as
-// a HTTP status code.
-func WriteHTTP(w http.ResponseWriter, httpStatus int, v interface{}) {
-	w.WriteHeader(httpStatus)
-	if v != nil {
-		w.Header().Set("Content-Type", "application/json; charset=utf-8")
-		result, _ := json.Marshal(v)
-		w.Write(result)
-	}
-}
-
-// WriteHTTPError writes an error, wrapped in the Message field of a JSON-encoded
-// object to a http.ResponseWriter, as well as a HTTP status code.
-// If the status code is 0, handleError tries to guess the proper HTTP status
-// code from the error type.
-func WriteHTTPError(w http.ResponseWriter, httpStatus int, err error) {
-	if httpStatus == 0 {
-		httpStatus = http.StatusInternalServerError
-		// Try to guess the http status code from the error type
-		if _, isBadRequestError := err.(*commonerr.ErrBadRequest); isBadRequestError {
-			httpStatus = http.StatusBadRequest
-		} else {
-			switch err {
-			case commonerr.ErrNotFound:
-				httpStatus = http.StatusNotFound
-			case database.ErrBackendException:
-				httpStatus = http.StatusServiceUnavailable
-			case worker.ErrParentUnknown, worker.ErrUnsupported, tarutil.ErrCouldNotExtract, tarutil.ErrExtractedFileTooBig:
-				httpStatus = http.StatusBadRequest
-			}
-		}
-	}
-
-	WriteHTTP(w, httpStatus, struct{ Message string }{Message: err.Error()})
-}
-
-// ParseHTTPBody reads a JSON-encoded body from a http.Request and unmarshals it
-// into the provided object.
-func ParseHTTPBody(r *http.Request, v interface{}) (int, error) {
-	defer r.Body.Close()
-	err := json.NewDecoder(io.LimitReader(r.Body, MaxBodySize)).Decode(v)
-	if err != nil {
-		return http.StatusUnsupportedMediaType, err
-	}
-	return 0, nil
-}