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// Copyright 2015 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 v2http
import (
"math"
"net/http"
"strings"
"time"
"github.com/coreos/etcd/etcdserver/api/etcdhttp"
"github.com/coreos/etcd/etcdserver/api/v2http/httptypes"
"github.com/coreos/etcd/etcdserver/auth"
"github.com/coreos/etcd/pkg/logutil"
"github.com/coreos/pkg/capnslog"
)
const (
// time to wait for a Watch request
defaultWatchTimeout = time.Duration(math.MaxInt64)
)
var (
plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "etcdserver/api/v2http")
mlog = logutil.NewMergeLogger(plog)
)
func writeError(w http.ResponseWriter, r *http.Request, err error) {
if err == nil {
return
}
if e, ok := err.(auth.Error); ok {
herr := httptypes.NewHTTPError(e.HTTPStatus(), e.Error())
if et := herr.WriteTo(w); et != nil {
plog.Debugf("error writing HTTPError (%v) to %s", et, r.RemoteAddr)
}
return
}
etcdhttp.WriteError(w, r, err)
}
// allowMethod verifies that the given method is one of the allowed methods,
// and if not, it writes an error to w. A boolean is returned indicating
// whether or not the method is allowed.
func allowMethod(w http.ResponseWriter, m string, ms ...string) bool {
for _, meth := range ms {
if m == meth {
return true
}
}
w.Header().Set("Allow", strings.Join(ms, ","))
http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
return false
}
func requestLogger(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
plog.Debugf("[%s] %s remote:%s", r.Method, r.RequestURI, r.RemoteAddr)
handler.ServeHTTP(w, r)
})
}
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