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// Copyright 2019 The Prometheus 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 server
import (
"net/http"
"path/filepath"
)
var mimeTypes = map[string]string{
".cjs": "application/javascript",
".css": "text/css",
".eot": "font/eot",
".gif": "image/gif",
".ico": "image/x-icon",
".jpg": "image/jpeg",
".js": "application/javascript",
".json": "application/json",
".less": "text/plain",
".map": "application/json",
".otf": "font/otf",
".png": "image/png",
".svg": "image/svg+xml",
".ttf": "font/ttf",
".txt": "text/plain",
".woff": "font/woff",
".woff2": "font/woff2",
}
func StaticFileServer(root http.FileSystem) http.Handler {
return http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
fileExt := filepath.Ext(r.URL.Path)
if t, ok := mimeTypes[fileExt]; ok {
w.Header().Set("Content-Type", t)
}
http.FileServer(root).ServeHTTP(w, r)
},
)
}
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