[BE] FEAT: anonymous login

backend/src/main/java/org/ftclub/cabinet/auth/service/AuthFacadeService.java

@@ -1,5 +1,11 @@
 package org.ftclub.cabinet.auth.service;
 
+import java.io.IOException;
+import java.time.LocalDateTime;
+import java.util.concurrent.ExecutionException;
+import javax.servlet.http.Cookie;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
 import org.ftclub.cabinet.admin.admin.domain.Admin;
 import org.ftclub.cabinet.admin.admin.service.AdminCommandService;
@@ -14,31 +20,23 @@
 import org.ftclub.cabinet.user.service.UserQueryService;
 import org.springframework.stereotype.Service;
 
-import javax.servlet.http.Cookie;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import java.io.IOException;
-import java.time.LocalDateTime;
-import java.util.concurrent.ExecutionException;
-
 /**
  * 인증 관련 비즈니스 로직을 처리하는 서비스입니다.
  */
 @Service
 @RequiredArgsConstructor
 public class AuthFacadeService {
 
+	private static final String REDIRECT_COOKIE_NAME = "redirect";
 	private final UserQueryService userQueryService;
 	private final UserCommandService userCommandService;
 	private final AdminQueryService adminQueryService;
 	private final AdminCommandService adminCommandService;
 	private final UserOauthService userOauthService;
 	private final AdminOauthService adminOauthService;
 	private final AuthPolicyService authPolicyService;
-
 	private final TokenProvider tokenProvider;
 	private final CookieManager cookieManager;
-	private static final String REDIRECT_COOKIE_NAME = "redirect";
 
 	/**
 	 * 유저 로그인 페이지로 리다이렉트합니다.
@@ -95,6 +93,23 @@ public void handleUserLogin(HttpServletRequest req, HttpServletResponse res, Str
 		res.sendRedirect(authPolicyService.getMainHomeUrl());
 	}
 
+	public void handlePublicLogin(HttpServletRequest req, HttpServletResponse res, String name)
+			throws IOException {
+
+		User user = userQueryService.findUser(name).orElseThrow(
+				ExceptionStatus.NOT_FOUND_USER::asServiceException);
+		String token = tokenProvider.createUserToken(user, LocalDateTime.now());
+		Cookie cookie = cookieManager.cookieOf(TokenProvider.USER_TOKEN_NAME, token);
+		cookieManager.setCookieToClient(res, cookie, "/", req.getServerName());
+		if (cookieManager.getCookieValue(req, REDIRECT_COOKIE_NAME) != null) {
+			String redirect = cookieManager.getCookieValue(req, REDIRECT_COOKIE_NAME);
+			cookieManager.deleteCookie(res, REDIRECT_COOKIE_NAME);
+			res.sendRedirect(redirect);
+			return;
+		}
+		res.sendRedirect(authPolicyService.getMainHomeUrl());
+	}
+
 	/**
 	 * 관리자 로그인 콜백으로 받은 authorization_code로 관리자 프로필 정보를 가져오고, 반환합니다.
 	 * <p>

backend/src/main/java/org/ftclub/cabinet/openpublic/controller/LoginController.java

@@ -0,0 +1,30 @@
+package org.ftclub.cabinet.openpublic.controller;
+
+import java.io.IOException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import lombok.RequiredArgsConstructor;
+import org.ftclub.cabinet.alarm.config.AlarmProperties;
+import org.ftclub.cabinet.auth.service.AuthFacadeService;
+import org.ftclub.cabinet.log.Logging;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@Logging
+@RequiredArgsConstructor
+@RequestMapping("/public")
+@RestController
+public class LoginController {
+
+	private final AuthFacadeService authFacadeService;
+	private final AlarmProperties alarmProperties;
+
+	@GetMapping("/login")
+	public void login(HttpServletRequest request, HttpServletResponse response) throws IOException {
+		final String username = "anonymous";
+		if (!alarmProperties.getIsProduction()) {
+			authFacadeService.handlePublicLogin(request, response, username);
+		}
+	}
+}