alertmanager/ui/web.go
Max Leonard Inden c3850708c1 Make assets generation deterministic
By passing "-modtime 1" flag into go-bindata command it uses the same
unix timestamp (1) for every file in the fake filesystem. Thereby every
execution of "make assets" results in the same asset outputs if the
inputs were the same. This forces us to set the "Cache-Control"
attribute to "no-cache".
2017-04-10 13:47:13 +02:00

69 lines
2.0 KiB
Go

// Copyright 2015 Prometheus Team
// 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 ui
import (
"bytes"
"io"
"net/http"
_ "net/http/pprof" // Comment this line to disable pprof endpoint.
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/log"
"github.com/prometheus/common/route"
)
func serveAsset(w http.ResponseWriter, req *http.Request, fp string) {
info, err := AssetInfo(fp)
if err != nil {
log.Warn("Could not get file: ", err)
w.WriteHeader(http.StatusNotFound)
return
}
file, err := Asset(fp)
if err != nil {
if err != io.EOF {
log.With("file", fp).Warn("Could not get file: ", err)
}
w.WriteHeader(http.StatusNotFound)
return
}
w.Header().Set("Cache-Control", "no-cache")
http.ServeContent(w, req, info.Name(), info.ModTime(), bytes.NewReader(file))
}
// Register registers handlers to serve files for the web interface.
func Register(r *route.Router, reloadCh chan<- struct{}) {
ihf := prometheus.InstrumentHandlerFunc
r.Get("/metrics", prometheus.Handler().ServeHTTP)
r.Get("/", ihf("index", func(w http.ResponseWriter, req *http.Request) {
serveAsset(w, req, "ui/app/index.html")
}))
r.Get("/script.js", ihf("app", func(w http.ResponseWriter, req *http.Request) {
serveAsset(w, req, "ui/app/script.js")
}))
r.Post("/-/reload", func(w http.ResponseWriter, req *http.Request) {
w.Write([]byte("Reloading configuration file..."))
reloadCh <- struct{}{}
})
r.Get("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
r.Post("/debug/*subpath", http.DefaultServeMux.ServeHTTP)
}