[Spring MVC(인증)] 한성재 미션 제출합니다.

src/main/java/roomescape/PageController.java

@@ -1,7 +1,14 @@
 package roomescape;
 
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import roomescape.member.LoginMember;
+import roomescape.member.Member;
 
 @Controller
 public class PageController {

src/main/java/roomescape/config/WebConfig.java

@@ -0,0 +1,31 @@
+package roomescape.config;
+
+import java.util.List;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.method.support.HandlerMethodArgumentResolver;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import roomescape.member.LoginMemberArgumentResolver;
+import roomescape.member.LoginMemberInterceptor;
+
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+
+  private final LoginMemberArgumentResolver loginMemberArgumentResolver;
+  private final LoginMemberInterceptor loginMemberInterceptor;
+
+  public WebConfig(LoginMemberArgumentResolver loginMemberArgumentResolver, LoginMemberInterceptor loginMemberInterceptor) {
+    this.loginMemberArgumentResolver = loginMemberArgumentResolver;
+    this.loginMemberInterceptor = loginMemberInterceptor;
+  }
+
+  @Override
+  public void addArgumentResolvers(final List<HandlerMethodArgumentResolver> resolvers) {
+    resolvers.add(loginMemberArgumentResolver);
+  }
+
+  @Override
+  public void addInterceptors(InterceptorRegistry registry) {
+    registry.addInterceptor(loginMemberInterceptor).addPathPatterns("/admin");
+  }
+}

src/main/java/roomescape/member/LoginMember.java

@@ -0,0 +1,8 @@
+package roomescape.member;
+
+public class LoginMember extends Member {
+
+  public LoginMember(final Long id, final String name, final String email, final String role) {
+    super(id, name, email, role);
+  }
+}

src/main/java/roomescape/member/LoginMemberArgumentResolver.java

@@ -0,0 +1,42 @@
+package roomescape.member;
+
+import jakarta.servlet.http.HttpServletRequest;
+import org.springframework.core.MethodParameter;
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.support.WebDataBinderFactory;
+import org.springframework.web.context.request.NativeWebRequest;
+import org.springframework.web.method.support.HandlerMethodArgumentResolver;
+import org.springframework.web.method.support.ModelAndViewContainer;
+
+@Component
+public class LoginMemberArgumentResolver implements HandlerMethodArgumentResolver {
+
+  private final MemberService memberService;
+  private final TokenUtil tokenUtil;
+
+  public LoginMemberArgumentResolver(MemberService memberService, TokenUtil tokenUtil) {
+    this.memberService = memberService;
+    this.tokenUtil = tokenUtil;
+  }
+
+  @Override
+  public boolean supportsParameter(final MethodParameter parameter) {
+    return parameter.getParameterType().equals(LoginMember.class);
+
+  }
+
+  @Override
+  public Object resolveArgument(
+      final MethodParameter parameter,
+      final ModelAndViewContainer mavContainer,
+      final NativeWebRequest webRequest,
+      final WebDataBinderFactory binderFactory)
+      throws Exception {
+    HttpServletRequest request = (HttpServletRequest) webRequest.getNativeRequest();
+    Long memberId = tokenUtil.getMemberId(request.getCookies());
+
+    Member member = memberService.find(memberId);
+    return new LoginMember(member.getId(), member.getName(), member.getEmail(), member.getRole());
+
+  }
+}

src/main/java/roomescape/member/LoginMemberInterceptor.java

@@ -0,0 +1,31 @@
+package roomescape.member;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.HandlerInterceptor;
+
+@Component
+public class LoginMemberInterceptor implements HandlerInterceptor {
+
+  private final TokenUtil tokenUtil;
+  private final MemberService memberService;
+
+  public LoginMemberInterceptor(TokenUtil tokenUtil, MemberService memberService) {
+    this.tokenUtil = tokenUtil;
+    this.memberService = memberService;
+  }
+  @Override
+  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+    Long memberId = this.tokenUtil.getMemberId(request.getCookies());
+
+    Member member = this.memberService.find(memberId);
+
+    if (member == null || !member.getRole().equals("ADMIN")) {
+      response.setStatus(401);
+      return false;
+    }
+
+    return true;
+  }
+}

src/main/java/roomescape/member/MemberController.java

@@ -3,6 +3,7 @@
 import jakarta.servlet.http.Cookie;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
+import java.util.Map;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -13,25 +14,56 @@
 
 @RestController
 public class MemberController {
-    private MemberService memberService;
-
-    public MemberController(MemberService memberService) {
-        this.memberService = memberService;
-    }
-
-    @PostMapping("/members")
-    public ResponseEntity createMember(@RequestBody MemberRequest memberRequest) {
-        MemberResponse member = memberService.createMember(memberRequest);
-        return ResponseEntity.created(URI.create("/members/" + member.getId())).body(member);
-    }
-
-    @PostMapping("/logout")
-    public ResponseEntity logout(HttpServletResponse response) {
-        Cookie cookie = new Cookie("token", "");
-        cookie.setHttpOnly(true);
-        cookie.setPath("/");
-        cookie.setMaxAge(0);
-        response.addCookie(cookie);
-        return ResponseEntity.ok().build();
-    }
+
+  private final MemberDao memberDao;
+  private final TokenUtil tokenUtil;
+  private MemberService memberService;
+
+  public MemberController(MemberService memberService, MemberDao memberDao, TokenUtil tokenUtil) {
+    this.memberService = memberService;
+    this.memberDao = memberDao;
+    this.tokenUtil = tokenUtil;
+  }
+
+  @PostMapping("/members")
+  public ResponseEntity createMember(@RequestBody MemberRequest memberRequest) {
+    MemberResponse member = memberService.createMember(memberRequest);
+    return ResponseEntity.created(URI.create("/members/" + member.getId())).body(member);
+  }
+
+  @PostMapping("/login")
+  public ResponseEntity<Void> login(@RequestBody Map<String, String> body) {
+    // HttpServletRequest 가 Request 객체가 아닌가? 일단 Map으로 대체
+    String email = body.get("email");
+    String password = body.get("password");
+
+    // TODO: member가 존재하지 않을때의 처리
+    Member member = memberDao.findByEmailAndPassword(email, password);
+    String token = tokenUtil.generate(member);
+
+    // TODO: 쿠키를 header 에 정상적으로 넣도록 수정
+    Cookie cookie = new Cookie("token", token);
+    cookie.setHttpOnly(true);
+    cookie.setPath("/");
+
+    return ResponseEntity.ok().header("Set-Cookie", "token=" + token + ";").build();
+  }
+
+  @GetMapping("/login/check")
+  public ResponseEntity<Map<String, String>> checkLogin(HttpServletRequest request) {
+    Long memberId = tokenUtil.getMemberId(request.getCookies());
+    Member member = memberDao.findById(memberId);
+
+    return ResponseEntity.ok().body(Map.of("name", member.getName()));
+  }
+
+  @PostMapping("/logout")
+  public ResponseEntity<Void> logout(HttpServletResponse response) {
+    Cookie cookie = new Cookie("token", "");
+    cookie.setHttpOnly(true);
+    cookie.setPath("/");
+    cookie.setMaxAge(0);
+    response.addCookie(cookie);
+    return ResponseEntity.ok().build();
+  }
 }

src/main/java/roomescape/member/MemberDao.java

@@ -52,4 +52,16 @@ public Member findByName(String name) {
                 name
         );
     }
+
+    public Member findById(final Long memberId) {
+        return jdbcTemplate.queryForObject("SELECT id, name, email, role FROM member WHERE id = ?",
+            (rs, rowNum) -> new Member(
+                rs.getLong("id"),
+                rs.getString("name"),
+                rs.getString("email"),
+                rs.getString("role")
+            ),
+            memberId
+        );
+    }
 }

src/main/java/roomescape/member/MemberService.java

@@ -10,6 +10,10 @@ public MemberService(MemberDao memberDao) {
         this.memberDao = memberDao;
     }
 
+    public Member find(Long memberId) {
+        return this.memberDao.findById(memberId);
+    }
+
     public MemberResponse createMember(MemberRequest memberRequest) {
         Member member = memberDao.save(new Member(memberRequest.getName(), memberRequest.getEmail(), memberRequest.getPassword(), "USER"));
         return new MemberResponse(member.getId(), member.getName(), member.getEmail());

src/main/java/roomescape/member/TokenUtil.java

@@ -0,0 +1,58 @@
+package roomescape.member;
+
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.SignatureAlgorithm;
+import io.jsonwebtoken.security.Keys;
+import jakarta.servlet.http.Cookie;
+import java.security.Key;
+import java.util.Date;
+import org.springframework.stereotype.Component;
+
+
+@Component
+public class TokenUtil {
+
+  private Key key;
+
+  public TokenUtil() {
+    this.key = Keys.secretKeyFor(SignatureAlgorithm.HS512);
+  }
+
+  public String generate(final Member member) {
+    Date now = new Date();
+
+    // duration 1시간으로 가정
+    int durationSecond = 60 * 60;
+    Date expirationDate = new Date(now.getTime() + 1000L * durationSecond);
+
+    return Jwts.builder()
+        .setSubject(member.getId().toString())
+        .claim("name", member.getName())
+        .claim("role", member.getName())
+        .signWith(this.key)
+        .setIssuedAt(now)
+        .setExpiration(expirationDate)
+        .compact();
+  }
+
+  public Long getMemberId(final Cookie[] cookies) {
+
+    String token = this.extractTokenFromCookie(cookies);
+
+    return Long.valueOf(Jwts.parserBuilder()
+        .setSigningKey(this.key)
+        .build()
+        .parseClaimsJws(token)
+        .getBody().getSubject());
+  }
+
+  private String extractTokenFromCookie(Cookie[] cookies) {
+    for (Cookie cookie : cookies) {
+      if (cookie.getName().equals("token")) {
+        return cookie.getValue();
+      }
+    }
+
+    return "";
+  }
+}

src/main/java/roomescape/reservation/ReservationController.java

@@ -10,37 +10,41 @@
 
 import java.net.URI;
 import java.util.List;
+import roomescape.member.LoginMember;
+import roomescape.member.Member;
 
 @RestController
 public class ReservationController {
 
-    private final ReservationService reservationService;
+  private final ReservationService reservationService;
 
-    public ReservationController(ReservationService reservationService) {
-        this.reservationService = reservationService;
-    }
+  public ReservationController(ReservationService reservationService) {
+    this.reservationService = reservationService;
+  }
 
-    @GetMapping("/reservations")
-    public List<ReservationResponse> list() {
-        return reservationService.findAll();
-    }
+  @GetMapping("/reservations")
+  public List<ReservationResponse> list() {
+    return reservationService.findAll();
+  }
 
-    @PostMapping("/reservations")
-    public ResponseEntity create(@RequestBody ReservationRequest reservationRequest) {
-        if (reservationRequest.getName() == null
-                || reservationRequest.getDate() == null
-                || reservationRequest.getTheme() == null
-                || reservationRequest.getTime() == null) {
-            return ResponseEntity.badRequest().build();
-        }
-        ReservationResponse reservation = reservationService.save(reservationRequest);
-
-        return ResponseEntity.created(URI.create("/reservations/" + reservation.getId())).body(reservation);
+  @PostMapping("/reservations")
+  public ResponseEntity create(@RequestBody ReservationRequest reservationRequest, LoginMember member) {
+    if ((member == null && reservationRequest.getName() == null)
+        || reservationRequest.getDate() == null
+        || reservationRequest.getTheme() == null
+        || reservationRequest.getTime() == null) {
+      return ResponseEntity.badRequest().build();
     }
 
-    @DeleteMapping("/reservations/{id}")
-    public ResponseEntity delete(@PathVariable Long id) {
-        reservationService.deleteById(id);
-        return ResponseEntity.noContent().build();
-    }
+    ReservationResponse reservation = reservationService.save(member, reservationRequest);
+
+    return ResponseEntity.created(URI.create("/reservations/" + reservation.getId()))
+        .body(reservation);
+  }
+
+  @DeleteMapping("/reservations/{id}")
+  public ResponseEntity delete(@PathVariable Long id) {
+    reservationService.deleteById(id);
+    return ResponseEntity.noContent().build();
+  }
 }

src/main/java/roomescape/reservation/ReservationRequest.java

@@ -21,4 +21,8 @@ public Long getTheme() {
     public Long getTime() {
         return time;
     }
+
+    public void setName(final String name) {
+        this.name = name;
+    }
 }