Add .html suffix to html pages, updated webui.go to search for them correctly

internal/httpserver/webui.go

@@ -2,6 +2,7 @@ package httpserver
 
 import (
 	"net/http"
+	"path/filepath"
 )
 
 func RegisterWebui() {
@@ -13,6 +14,24 @@ func RegisterWebui() {
 		http.NotFound(w, r)
 	})
 
-	fs := http.FileServer(http.Dir("web"))
-	http.Handle("/web/", http.StripPrefix("/web/", fs))
+	fs := http.Dir("web")
+
+	http.Handle("/web/", http.StripPrefix("/web/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		path := r.URL.Path
+		f, err := fs.Open(path)
+		if err != nil {
+			//file doesn't exist, try adding .html, probably a bad idea
+			htmlPath := path + ".html"
+			f, err = fs.Open(htmlPath)
+			if err != nil {
+				http.NotFound(w, r)
+				return
+			}
+			defer f.Close()
+			http.ServeFile(w, r, filepath.Join("web", htmlPath))
+			return
+		}
+		defer f.Close()
+		http.ServeFile(w, r, filepath.Join("web", path))
+	})))
 }