traefik/old/middlewares/accesslog/save_frontend.go
2018-11-14 10:18:03 +01:00

51 lines
1.4 KiB
Go

package accesslog
import (
"net/http"
"strings"
"github.com/urfave/negroni"
)
// SaveFrontend sends the frontend name to the logger.
// These are sometimes used with a corresponding SaveBackend handler, but not always.
// For example, redirected requests don't reach a backend.
type SaveFrontend struct {
next http.Handler
frontendName string
}
// NewSaveFrontend creates a SaveFrontend handler.
func NewSaveFrontend(next http.Handler, frontendName string) http.Handler {
return &SaveFrontend{next, frontendName}
}
func (sf *SaveFrontend) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
serveSaveFrontend(r, sf.frontendName, func() {
sf.next.ServeHTTP(rw, r)
})
}
// SaveNegroniFrontend sends the frontend name to the logger.
type SaveNegroniFrontend struct {
next negroni.Handler
frontendName string
}
// NewSaveNegroniFrontend creates a SaveNegroniFrontend handler.
func NewSaveNegroniFrontend(next negroni.Handler, frontendName string) negroni.Handler {
return &SaveNegroniFrontend{next, frontendName}
}
func (sf *SaveNegroniFrontend) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
serveSaveFrontend(r, sf.frontendName, func() {
sf.next.ServeHTTP(rw, r, next)
})
}
func serveSaveFrontend(r *http.Request, frontendName string, apply func()) {
table := GetLogDataTable(r)
table.Core[FrontendName] = strings.TrimPrefix(frontendName, "frontend-")
apply()
}