Implement hard-coded login

main.go

@@ -1,9 +1,74 @@
 package main
 
 import (
-	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/dgrijalva/jwt-go"
+	"github.com/labstack/echo"
+	"github.com/labstack/echo/engine/standard"
+	"github.com/labstack/echo/middleware"
+)
+
+const (
+	expiration = 72
+	secret     = "uditapbzuditagscwxuqdflgzpbu´ßiaefnlmzeßtrubiadern"
 )
 
 func main() {
-	fmt.Println("Hello World")
+	e := echo.New()
+
+	// Middleware
+	e.Use(middleware.Logger())
+	e.Use(middleware.Recover())
+
+	// Login route
+	e.POST("/login", login)
+
+	// Unauthenticated routes
+	e.GET("/", accessible)
+	e.GET("/hello", func(c echo.Context) error {
+		return c.String(http.StatusOK, "Hello, World!")
+	})
+
+	// Restricted group
+	r := e.Group("/restricted")
+	r.Use(middleware.JWT([]byte(secret)))
+	r.GET("", restricted)
+
+	e.Run(standard.New(":1323"))
+}
+
+func accessible(c echo.Context) error {
+	return c.String(http.StatusOK, "Accessible")
+}
+func restricted(c echo.Context) error {
+	user := c.Get("user").(*jwt.Token)
+	name := user.Claims["name"].(string)
+	return c.String(http.StatusOK, "Welcome "+name+"!")
+}
+func login(c echo.Context) error {
+	username := c.FormValue("username")
+	password := c.FormValue("password")
+
+	if username == "jan" && password == "passwort" {
+		// Create token
+		token := jwt.New(jwt.SigningMethodHS256)
+
+		// Set claims
+		token.Claims["name"] = "Jan Bader"
+		token.Claims["admin"] = true
+		token.Claims["exp"] = time.Now().Add(time.Hour * expiration).Unix()
+
+		// Generate encoded token and send it as response.
+		t, err := token.SignedString([]byte(secret))
+		if err != nil {
+			return err
+		}
+		return c.JSON(http.StatusOK, map[string]string{
+			"token": t,
+		})
+	}
+
+	return echo.ErrUnauthorized
 }