[Auth] 로그아웃 핸들러 개발

src/main/java/app/handler/LoginWithPost.java

@@ -42,14 +42,14 @@ public HandlerResponse handle(QueryParameters params) {
                 user.getUserRole(),
                 user.getNickname());
 
-        RedirectResponse res = RedirectResponse.to("/");
-        res.setCookie(
+        RedirectResponse response = RedirectResponse.to("/");
+        response.setCookie(
                 CookieBuilder.of("SID", session.getId())
                         .path("/")
                         .httpOnly()
                         .sameSite(CookieBuilder.SameSite.LAX)
                         .maxAge(VariableConfig.ABSOLUTE_MS)
         );
-        return res;
+        return response;
     }
 }

src/main/java/app/handler/LogoutWithPost.java

@@ -0,0 +1,28 @@
+package app.handler;
+
+import http.HttpMethod;
+import http.request.HttpRequest;
+import http.response.CookieBuilder;
+import web.handler.SingleArgHandler;
+import web.response.HandlerResponse;
+import web.response.RedirectResponse;
+import web.session.SessionStorage;
+
+public class LogoutWithPost extends SingleArgHandler<HttpRequest> {
+    private final SessionStorage sessionManager;
+
+    public LogoutWithPost(SessionStorage sessionManager) {
+        super(HttpMethod.POST, "/user/logout");
+        this.sessionManager = sessionManager;
+    }
+
+    @Override
+    public HandlerResponse handle(HttpRequest request) {
+        String sid = request.getCookieValue("SID").orElse(null);
+        if (sid != null) sessionManager.invalidate(sid);
+
+        RedirectResponse response = RedirectResponse.to("/");
+        response.setCookie(CookieBuilder.delete("SID").path("/"));
+        return response;
+    }
+}

src/main/java/config/AppConfig.java

@@ -1,9 +1,6 @@
 package config;
 
-import app.handler.HomeHandler;
-import app.handler.LoginWithPost;
-import app.handler.RegisterWithGet;
-import app.handler.RegisterWithPost;
+import app.handler.*;
 import exception.ExceptionHandlerMapping;
 import exception.handler.ErrorExceptionHandler;
 import exception.handler.ServiceExceptionHandler;
@@ -90,6 +87,7 @@ public List<WebHandler> webHandlerList() {
                         registerWithGet(),
                         registerWithPost(),
                         loginWithPost(),
+                        logoutWithPost(),
                         homeHandler())
         );
     }
@@ -120,6 +118,11 @@ public LoginWithPost loginWithPost() {
                 () -> new LoginWithPost(sessionStorage()));
     }
 
+    public LogoutWithPost logoutWithPost(){
+        return getOrCreate("logoutWithPost",
+                () -> new LogoutWithPost(sessionStorage()));
+    }
+
     public HomeHandler homeHandler(){
         return getOrCreate("homeHandler", HomeHandler::new);
     }

src/main/java/http/response/HttpResponse.java

@@ -75,6 +75,12 @@ public void setBody(File file, byte[] body) {
         setHeader("Content-Length", String.valueOf(body.length));
     }
 
+    public void redirectTo(String path){
+        setStatus(HttpStatus.FOUND);
+        setHeader("Location", path);
+        setHeader("Content-Length", "0");
+    }
+
     private String guessContentType(File file) {
         String byName = URLConnection.guessContentTypeFromName(file.getName());
         if (byName != null) return byName;

src/main/java/web/filter/MemberAuthorizationFilter.java

@@ -1,6 +1,5 @@
 package web.filter;
 
-import http.HttpStatus;
 import http.request.HttpRequest;
 import http.response.HttpResponse;
 import web.filter.authentication.UserRole;
@@ -13,9 +12,7 @@ public void runFilter(HttpRequest request, HttpResponse response, FilterChainCon
         if(request.getAuthenticationInfo().getRole().equals(UserRole.MEMBER)){
             chain.doFilter();
         } else {
-            response.setStatus(HttpStatus.FOUND);
-            response.setHeader("Location", "/login");
-            response.setHeader("Content-Length", "0");
+            response.redirectTo("/login");
         }
     }
 }

src/main/resources/templates/layout/header.html

@@ -6,6 +6,9 @@
         <li class="header__menu__item">
             <span class="header__menu__nickname">닉네임: {{userNickname}}</span>
         </li>
+        <form action="/user/logout" method="POST">
+            <button type="submit">로그아웃</button>
+        </form>
         {{else1}}
         <li class="header__menu__item">
             <a class="btn btn_contained btn_size_s" href="/login">로그인</a>