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mime.go
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/
mime.go
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package mime
import (
"net/http"
"path"
"github.com/mholt/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)
}