@@ -6,13 +6,18 @@ "log"
 	"net/http"
 	"path"
 	"path/filepath"
-	"strings"
 
 	"github.com/dimfeld/httptreemux/v5"
 	"github.com/fsnotify/fsnotify"
 
 	"alin.ovh/elgit/config"
+	"alin.ovh/elgit/templates"
 )
+
+var ErrNotAllowed = templates.Error{
+	Code:    http.StatusMethodNotAllowed,
+	Message: "that's not possible.",
+}
 
 // Checks for gitprotocol-http(5) specific smells; if found, passes
 // the request on to the git http service, else render the web frontend.
@@ -44,19 +49,25 @@
 		return
 	}
 
-	switch {
-	case rest == "info/refs" &&
-		r.URL.RawQuery == "service=git-upload-pack" &&
-		r.Method == "GET":
-		d.InfoRefs(w, r, params)
-	case rest == "git-upload-pack" && r.Method == "POST":
-		d.UploadPack(w, r, params)
-	case r.Method == "GET":
-		if fixed, found := strings.CutSuffix(r.URL.Path, "/"); found {
-			http.Redirect(w, r, fixed, http.StatusPermanentRedirect)
-		} else {
+	switch r.Method {
+	case http.MethodGet:
+		switch {
+		case rest == "info/refs" &&
+			r.URL.RawQuery == "service=git-upload-pack":
+			d.InfoRefs(w, r, params)
+		default:
 			d.RepoIndex(w, r, params)
 		}
+
+	case http.MethodPost:
+		switch rest {
+		case "git-upload-pack":
+			d.UploadPack(w, r, params)
+		default:
+			d.WriteError(w, ErrNotAllowed)
+		}
+	default:
+		d.WriteError(w, ErrNotAllowed)
 	}
 }
 
@@ -110,8 +121,6 @@ mux.NotFoundHandler = func(w http.ResponseWriter, _ *http.Request) {
 		d.Write404(w)
 	}
 
-	mux.RedirectTrailingSlash = false
-
 	mux.GET("/", d.Index)
 	mux.NewGroup("/static/").
 		UsingContext().
@@ -126,18 +135,14 @@
 func (d deps) mountRepoPaths(group *httptreemux.Group) {
 	group.GET("/tree/:ref/*rest", d.RepoTree)
 	group.GET("/blob/:ref/*rest", d.FileContent)
-	group.GET("/tree/:ref", d.RepoTree)
 	group.GET("/tree/:ref/", d.RepoTree)
-	group.GET("/blob/:ref/", d.FileContent)
-	group.GET("/log/:ref", d.Log)
+	group.GET("/log/:ref/", d.Log)
 	group.GET("/archive/:file", d.Archive)
 	group.GET("/commit/:ref", d.Diff)
 	group.GET("/commit/:ref/*file", d.FileDiff)
 	group.GET("/refs/", d.Refs)
 	group.GET("", d.Multiplex)
 	group.POST("", d.Multiplex)
-	group.GET("/", d.Multiplex)
-	group.POST("/", d.Multiplex)
 	group.GET("/*rest", d.Multiplex)
 	group.POST("/*rest", d.Multiplex)
 }