67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
/*
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Copyright 2014 CoreOS, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package etcdhttp
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import (
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"errors"
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"log"
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"net/http"
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"strings"
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"time"
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etcdErr "github.com/coreos/etcd/error"
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)
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const (
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// time to wait for response from EtcdServer requests
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defaultServerTimeout = 500 * time.Millisecond
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// time to wait for a Watch request
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defaultWatchTimeout = 5 * time.Minute
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)
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var errClosed = errors.New("etcdhttp: client closed connection")
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// writeError logs and writes the given Error to the ResponseWriter
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// If Error is an etcdErr, it is rendered to the ResponseWriter
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// Otherwise, it is assumed to be an InternalServerError
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func writeError(w http.ResponseWriter, err error) {
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if err == nil {
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return
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}
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log.Println(err)
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if e, ok := err.(*etcdErr.Error); ok {
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e.Write(w)
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} else {
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http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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}
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}
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// allowMethod verifies that the given method is one of the allowed methods,
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// and if not, it writes an error to w. A boolean is returned indicating
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// whether or not the method is allowed.
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func allowMethod(w http.ResponseWriter, m string, ms ...string) bool {
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for _, meth := range ms {
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if m == meth {
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return true
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}
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}
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w.Header().Set("Allow", strings.Join(ms, ","))
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http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
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return false
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}
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