From 1bb7e7e157b81e4ae26591152e654f5123c39a83 Mon Sep 17 00:00:00 2001
From: kekskurse <git@kekskurse.de>
Date: Thu, 4 Nov 2021 03:04:05 +0100
Subject: [PATCH] Logout

---
 pkg/user/user.go       | 49 +++++++++--------------------------------
 pkg/user/userclient.go | 50 ++++++++++++++++++++++++++++++++++++++++++
 readme.md              |  1 -
 templates/layout.tmpl  |  1 +
 4 files changed, 61 insertions(+), 40 deletions(-)
 create mode 100644 pkg/user/userclient.go

diff --git a/pkg/user/user.go b/pkg/user/user.go
index 1d54dd1..bb4afd6 100644
--- a/pkg/user/user.go
+++ b/pkg/user/user.go
@@ -2,7 +2,6 @@ package user
 
 import (
 	"embed"
-	"errors"
 	"fmt"
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/jwtauth/v5"
@@ -32,6 +31,7 @@ func Register(router chi.Router) {
 	router.Post("/login", login)
 	router.Get("/register", loginForm)
 	router.Post("/register", register)
+	router.Get("/logout", logout)
 
 	tokenAuth = jwtauth.New("HS256", []byte("secret"), nil)
 
@@ -76,6 +76,15 @@ func login(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func logout(w http.ResponseWriter, r *http.Request)  {
+	cookie := http.Cookie{
+		Name:       "jwt",
+		Value:      "",
+	}
+	http.SetCookie(w, &cookie)
+	w.Write([]byte("Du wurdest ausgeloggt"))
+}
+
 func register(w http.ResponseWriter, r *http.Request) {
 	r.ParseForm()
 
@@ -89,41 +98,3 @@ func register(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-type UserClient struct {
-	users map[string]string
-}
-
-var u *UserClient
-
-func GetUserClient() *UserClient {
-	if u == nil {
-		uc := UserClient{}
-		uc.users = make(map[string]string)
-		uc.users["admin"]="password"
-		u = &uc
-	}
-
-	return u
-}
-
-func (uc *UserClient) register(username, password string) (bool, error) {
-	if _, ok := uc.users[username]; ok {
-		return false, errors.New("Username already used")
-	}
-
-	uc.users[username] = password
-	return true, nil
-}
-
-func (uc UserClient) login(username, password string) (bool, error) {
-	if val, ok := uc.users[username]; ok {
-		fmt.Println("Login for valide user")
-		if val == password {
-			return true, nil
-		}
-	} else {
-		fmt.Printf("User %v not found", username)
-	}
-
-	return false, nil
-}
\ No newline at end of file
diff --git a/pkg/user/userclient.go b/pkg/user/userclient.go
new file mode 100644
index 0000000..13b7df8
--- /dev/null
+++ b/pkg/user/userclient.go
@@ -0,0 +1,50 @@
+package user
+
+import (
+	"errors"
+	"fmt"
+)
+
+type UserClient interface {
+	register(username, password string) (bool, error)
+	login(username, password string) (bool, error)
+}
+
+type UserClientMemory struct {
+	users map[string]string
+}
+
+var u *UserClientMemory
+
+func GetUserClient() *UserClientMemory {
+	if u == nil {
+		uc := UserClientMemory{}
+		uc.users = make(map[string]string)
+		uc.users["admin"]="password"
+		u = &uc
+	}
+
+	return u
+}
+
+func (uc *UserClientMemory) register(username, password string) (bool, error) {
+	if _, ok := uc.users[username]; ok {
+		return false, errors.New("Username already used")
+	}
+
+	uc.users[username] = password
+	return true, nil
+}
+
+func (uc UserClientMemory) login(username, password string) (bool, error) {
+	if val, ok := uc.users[username]; ok {
+		fmt.Println("Login for valide user")
+		if val == password {
+			return true, nil
+		}
+	} else {
+		fmt.Printf("User %v not found", username)
+	}
+
+	return false, nil
+}
\ No newline at end of file
diff --git a/readme.md b/readme.md
index 9e45449..192a6f0 100644
--- a/readme.md
+++ b/readme.md
@@ -12,6 +12,5 @@ next steps:
 * auth über mehrer pkg sharen z.b. durch config object statt chi router in die Register funktion reichen
 * tests für user client bauen
 * tests für http functionen bauen, rausfinden wie das geht
-* logout 
 * mysql migrationen oder andere datenbank für user einbauen
 * ci/Cd bis docker image bauen
\ No newline at end of file
diff --git a/templates/layout.tmpl b/templates/layout.tmpl
index 6de5a51..bb4af3f 100644
--- a/templates/layout.tmpl
+++ b/templates/layout.tmpl
@@ -14,6 +14,7 @@
                 <li><a href="/register">Register</a></li>
                 <li><a href="/login">Login</a></li>
                 <li><a href="/me">Me</a></li>
+                <li><a href="/logout">Logout</a></li>
             </ul>
         </div>
         <div class="col-md-9"> {{ yield }}</div>