mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
93 lines
2.5 KiB
Go
93 lines
2.5 KiB
Go
// Copyright 2022 The etcd 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 etcdhttp
|
|
|
|
import (
|
|
"net/http"
|
|
|
|
httptypes "go.etcd.io/etcd/server/v3/etcdserver/api/etcdhttp/types"
|
|
"go.etcd.io/etcd/server/v3/etcdserver/api/v2error"
|
|
"go.etcd.io/etcd/server/v3/etcdserver/errors"
|
|
"go.uber.org/zap"
|
|
)
|
|
|
|
func allowMethod(w http.ResponseWriter, r *http.Request, m string) bool {
|
|
if m == r.Method {
|
|
return true
|
|
}
|
|
w.Header().Set("Allow", m)
|
|
http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
|
|
return false
|
|
}
|
|
|
|
// writeError logs and writes the given Error to the ResponseWriter
|
|
// If Error is an etcdErr, it is rendered to the ResponseWriter
|
|
// Otherwise, it is assumed to be a StatusInternalServerError
|
|
func writeError(lg *zap.Logger, w http.ResponseWriter, r *http.Request, err error) {
|
|
if err == nil {
|
|
return
|
|
}
|
|
switch e := err.(type) {
|
|
case *v2error.Error:
|
|
e.WriteTo(w)
|
|
|
|
case *httptypes.HTTPError:
|
|
if et := e.WriteTo(w); et != nil {
|
|
if lg != nil {
|
|
lg.Debug(
|
|
"failed to write v2 HTTP error",
|
|
zap.String("remote-addr", r.RemoteAddr),
|
|
zap.String("internal-server-error", e.Error()),
|
|
zap.Error(et),
|
|
)
|
|
}
|
|
}
|
|
|
|
default:
|
|
switch err {
|
|
case errors.ErrTimeoutDueToLeaderFail, errors.ErrTimeoutDueToConnectionLost, errors.ErrNotEnoughStartedMembers,
|
|
errors.ErrUnhealthy:
|
|
if lg != nil {
|
|
lg.Warn(
|
|
"v2 response error",
|
|
zap.String("remote-addr", r.RemoteAddr),
|
|
zap.String("internal-server-error", err.Error()),
|
|
)
|
|
}
|
|
|
|
default:
|
|
if lg != nil {
|
|
lg.Warn(
|
|
"unexpected v2 response error",
|
|
zap.String("remote-addr", r.RemoteAddr),
|
|
zap.String("internal-server-error", err.Error()),
|
|
)
|
|
}
|
|
}
|
|
|
|
herr := httptypes.NewHTTPError(http.StatusInternalServerError, "Internal Server Error")
|
|
if et := herr.WriteTo(w); et != nil {
|
|
if lg != nil {
|
|
lg.Debug(
|
|
"failed to write v2 HTTP error",
|
|
zap.String("remote-addr", r.RemoteAddr),
|
|
zap.String("internal-server-error", err.Error()),
|
|
zap.Error(et),
|
|
)
|
|
}
|
|
}
|
|
}
|
|
}
|