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// Copyright 2015 Light Code Labs, LLC
//
// 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 mime
import (
"net/http"
"path"
"github.com/caddyserver/caddy/caddyhttp/httpserver"
)
// Config represent a mime config. Map from extension to mime-type.
// Note, this should be safe with concurrent read access, as this is
// not modified concurrently.
type Config map[string]string
// Mime sets Content-Type header of requests based on configurations.
type Mime struct {
Next httpserver.Handler
Configs Config
}
// ServeHTTP implements the httpserver.Handler interface.
func (e Mime) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
// Get a clean /-path, grab the extension
ext := path.Ext(path.Clean(r.URL.Path))
if contentType, ok := e.Configs[ext]; ok {
w.Header().Set("Content-Type", contentType)
}
return e.Next.ServeHTTP(w, r)
}
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