add a way to customize the handler names (recommended: before server execution) so route logging can be more human-friendly on handlers like standard iris middlewares, e.g. request logger

Former-commit-id: 039c233f2d4da0d52b1d6fc86b6d73be14b15608

_examples/routing/overview/main.go

@@ -2,12 +2,16 @@ package main
 
 import (
 	"github.com/kataras/iris/v12"
+	"github.com/kataras/iris/v12/middleware/logger"
 )
 
 func main() {
 	app := iris.New()
 	app.Logger().SetLevel("debug")
 
+	// Register a request logger middleware to the application.
+	app.Use(logger.New())
+
 	// GET: http://localhost:8080
 	app.Get("/", info)
 
@@ -112,6 +116,9 @@ func main() {
 		ctx.Writef(name)
 	})
 
+	app.None("/secret", privateHandler)
+	app.Get("/public", execPrivateHandler)
+
 	// GET: http://localhost:8080/
 	// GET: http://localhost:8080/profile/anyusername
 	// GET: http://localhost:8080/profile/anyusername/backups/any/number/of/paths/here
@@ -130,6 +137,15 @@ func main() {
 	app.Listen(":8080")
 }
 
+func privateHandler(ctx iris.Context) {
+	ctx.WriteString(`This can only be executed programmatically through server's another route:
+ctx.Exec(iris.MethodNone, "/secret")`)
+}
+
+func execPrivateHandler(ctx iris.Context) {
+	ctx.Exec(iris.MethodNone, "/secret")
+}
+
 func info(ctx iris.Context) {
 	method := ctx.Method()       // the http method requested a server's resource.
 	subdomain := ctx.Subdomain() // the subdomain, if any.