Move code to pkg

middlewares/stripprefix/strip_prefix.go

@@ -1,67 +0,0 @@
-package stripprefix
-
-import (
-	"context"
-	"net/http"
-	"strings"
-
-	"github.com/containous/traefik/config"
-	"github.com/containous/traefik/middlewares"
-	"github.com/containous/traefik/tracing"
-	"github.com/opentracing/opentracing-go/ext"
-)
-
-const (
-	// ForwardedPrefixHeader is the default header to set prefix.
-	ForwardedPrefixHeader = "X-Forwarded-Prefix"
-	typeName              = "StripPrefix"
-)
-
-// stripPrefix is a middleware used to strip prefix from an URL request.
-type stripPrefix struct {
-	next     http.Handler
-	prefixes []string
-	name     string
-}
-
-// New creates a new strip prefix middleware.
-func New(ctx context.Context, next http.Handler, config config.StripPrefix, name string) (http.Handler, error) {
-	middlewares.GetLogger(ctx, name, typeName).Debug("Creating middleware")
-	return &stripPrefix{
-		prefixes: config.Prefixes,
-		next:     next,
-		name:     name,
-	}, nil
-}
-
-func (s *stripPrefix) GetTracingInformation() (string, ext.SpanKindEnum) {
-	return s.name, tracing.SpanKindNoneEnum
-}
-
-func (s *stripPrefix) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
-	for _, prefix := range s.prefixes {
-		if strings.HasPrefix(req.URL.Path, prefix) {
-			req.URL.Path = getPrefixStripped(req.URL.Path, prefix)
-			if req.URL.RawPath != "" {
-				req.URL.RawPath = getPrefixStripped(req.URL.RawPath, prefix)
-			}
-			s.serveRequest(rw, req, strings.TrimSpace(prefix))
-			return
-		}
-	}
-	http.NotFound(rw, req)
-}
-
-func (s *stripPrefix) serveRequest(rw http.ResponseWriter, req *http.Request, prefix string) {
-	req.Header.Add(ForwardedPrefixHeader, prefix)
-	req.RequestURI = req.URL.RequestURI()
-	s.next.ServeHTTP(rw, req)
-}
-
-func getPrefixStripped(s, prefix string) string {
-	return ensureLeadingSlash(strings.TrimPrefix(s, prefix))
-}
-
-func ensureLeadingSlash(str string) string {
-	return "/" + strings.TrimPrefix(str, "/")
-}