move example flash-messages to sessions example folder and change httptest example with basicauth

Former-commit-id: 3c5f6c97629a2a6ae44e62f2900edd32c0329b50

_examples/intermediate/httptest/main.go

@@ -3,33 +3,57 @@ package main
 import (
 	"github.com/kataras/iris"
 	"github.com/kataras/iris/context"
-	"github.com/kataras/iris/sessions"
+	"github.com/kataras/iris/middleware/basicauth"
 )
 
-func main() {
+func buildApp() *iris.Application {
 	app := iris.New()
 
-	app.AttachSessionManager(sessions.New(sessions.Config{Cookie: "mysessionid"}))
+	authConfig := basicauth.Config{
+		Users:      map[string]string{"myusername": "mypassword", "mySecondusername": "mySecondpassword"},
+		Realm:      "Authorization Required", // defaults to "Authorization Required"
+		ContextKey: "user",                   // defaults to "user"
+	}
 
-	app.Get("/hello", func(ctx context.Context) {
-		sess := ctx.Session()
-		if !sess.HasFlash() {
-			ctx.HTML("<h1> Unauthorized Page! </h1>")
-			return
-		}
+	authentication := basicauth.New(authConfig)
 
-		ctx.JSON(context.Map{
-			"Message": "Hello",
-			"From":    sess.GetFlash("name"),
+	// to global app.Use(authentication) (or app.UseGlobal before the .Run)
+	// to routes
+	/*
+		app.Get("/mysecret", authentication, func(ctx context.Context) {
+			username := ctx.Values().GetString("user") //  the Contextkey from the authConfig
+			ctx.Writef("Hello authenticated user: %s ", username)
 		})
-	})
+	*/
 
-	app.Post("/login", func(ctx context.Context) {
-		sess := ctx.Session()
-		if !sess.HasFlash() {
-			sess.SetFlash("name", ctx.FormValue("name"))
-		}
+	app.Get("/", func(ctx context.Context) { ctx.Redirect("/admin") })
 
-	})
+	// to party
+
+	needAuth := app.Party("/admin", authentication)
+	{
+		//http://localhost:8080/admin
+		needAuth.Get("/", func(ctx context.Context) {
+			username := ctx.Values().GetString("user") //  the Contextkey from the authConfig
+			ctx.Writef("Hello authenticated user: %s from: %s", username, ctx.Path())
+		})
+		// http://localhost:8080/admin/profile
+		needAuth.Get("/profile", func(ctx context.Context) {
+			username := ctx.Values().GetString("user") //  the Contextkey from the authConfig
+			ctx.Writef("Hello authenticated user: %s from: %s", username, ctx.Path())
+		})
+
+		// http://localhost:8080/admin/settings
+		needAuth.Get("/settings", func(ctx context.Context) {
+			username := authConfig.User(ctx) // shortcut for ctx.Values().GetString("user")
+			ctx.Writef("Hello authenticated user: %s from: %s", username, ctx.Path())
+		})
+	}
+
+	return app
+}
+
+func main() {
+	app := buildApp()
 	app.Run(iris.Addr(":8080"))
 }