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http.go
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http.go
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// Copyright 2021 Mia srl
//
// 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 utils
import (
"encoding/json"
"net/http"
"strings"
"github.com/rond-authz/rond/types"
)
const ContentTypeHeaderKey = "content-type"
const JSONContentTypeHeader = "application/json"
func UnmarshalHeader(headers http.Header, headerKey string, v interface{}) (bool, error) {
headerValueStringified := headers.Get(headerKey)
if headerValueStringified != "" {
err := json.Unmarshal([]byte(headerValueStringified), &v)
return err == nil, err
}
return false, nil
}
func HasApplicationJSONContentType(headers http.Header) bool {
return strings.HasPrefix(headers.Get(ContentTypeHeaderKey), JSONContentTypeHeader)
}
func FailResponse(w http.ResponseWriter, technicalError, businessError string) {
FailResponseWithCode(w, http.StatusInternalServerError, technicalError, businessError)
}
func FailResponseWithCode(w http.ResponseWriter, statusCode int, technicalError, businessError string) {
w.Header().Set(ContentTypeHeaderKey, JSONContentTypeHeader)
w.WriteHeader(statusCode)
content, err := json.Marshal(types.RequestError{
StatusCode: statusCode,
Error: technicalError,
Message: businessError,
})
if err != nil {
return
}
//#nosec G104 -- Intended to avoid disruptive code changes
w.Write(content)
}