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https.go
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https.go
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// Copyright 2019 Google LLC All Rights Reserved.
//
// 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 https
import (
"io/ioutil"
"net/http"
"agones.dev/agones/pkg/util/runtime"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
// ErrorHandlerFunc is a http handler that can return an error
// for standard logging and a 500 response
type ErrorHandlerFunc func(http.ResponseWriter, *http.Request) error
// FourZeroFour is the standard 404 handler.
func FourZeroFour(logger *logrus.Entry, w http.ResponseWriter, r *http.Request) {
f := ErrorHTTPHandler(logger, func(writer http.ResponseWriter, request *http.Request) error {
body, err := ioutil.ReadAll(r.Body)
if err != nil {
return errors.Wrap(err, "error in default handler")
}
defer r.Body.Close() // nolint: errcheck
LogRequest(logger, r).WithField("body", string(body)).Warn("404")
http.NotFound(w, r)
return nil
})
f(w, r)
}
// ErrorHTTPHandler is a conversion function that sets up a http.StatusInternalServerError
// if an error is returned
func ErrorHTTPHandler(logger *logrus.Entry, f ErrorHandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
err := f(w, r)
if err != nil {
runtime.HandleError(LogRequest(logger, r), err)
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
}
// LogRequest logs all the JSON parsable fields in a request
// as otherwise, the request is not marshable
func LogRequest(logger *logrus.Entry, r *http.Request) *logrus.Entry {
return logger.WithField("method", r.Method).
WithField("url", r.URL).
WithField("host", r.Host).
WithField("headers", r.Header).
WithField("requestURI", r.RequestURI)
}