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feat: 카카오 로그인 API (#86)
* fix: cors disable 추가 * feat: 카카오 로그인 API * feat: 시큐리티에 카카오 로그인 url 추가 * docs: swagger 수정 * test: test yml 수정
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-24
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8 files changed

+186
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lines changed

‎src/main/java/com/oronaminc/join/member/dto/KakaoLoginRequest.java‎

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package com.oronaminc.join.member.dto;
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public record KakaoLoginRequest(
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String code,
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String state
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) {
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}

‎src/main/java/com/oronaminc/join/member/dto/KakaoLoginResponse.java‎

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package com.oronaminc.join.member.dto;
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import io.swagger.v3.oas.annotations.media.Schema;
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public record KakaoLoginResponse(
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@Schema(description = "회원 id", example = "1001")
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Long id
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) {
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}

‎src/main/java/com/oronaminc/join/member/dto/KakaoUserResponse.java‎

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package com.oronaminc.join.member.dto;
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import lombok.Builder;
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@Builder
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public record KakaoUserResponse(
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String email,
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String nickname,
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String profileImageUrl
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) {
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}

‎src/main/java/com/oronaminc/join/member/security/AuthController.java‎

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@@ -1,10 +1,5 @@
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package com.oronaminc.join.member.security;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.responses.ApiResponse;
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import io.swagger.v3.oas.annotations.responses.ApiResponses;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import io.swagger.v3.oas.annotations.tags.Tags;
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import java.util.List;
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import org.springframework.http.HttpStatus;
@@ -24,8 +19,13 @@
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import com.oronaminc.join.member.dto.GuestLoginRequest;
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import com.oronaminc.join.member.dto.GuestLoginResponse;
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import com.oronaminc.join.member.dto.KakaoLoginRequest;
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import com.oronaminc.join.member.dto.KakaoLoginResponse;
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import com.oronaminc.join.member.dto.SessionInfoResponse;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.responses.ApiResponse;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import jakarta.servlet.http.Cookie;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
@@ -40,6 +40,33 @@
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public class AuthController {
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private final AuthService authService;
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@Operation(
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summary = "카카오 로그인",
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description = "redirect url 에 포함된 파라미터의 code와 state를 입력해주세요. 이후 모든 요청에 세션 인증이 적용됩니다."
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)
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@PostMapping("/kakao")
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@ResponseStatus(HttpStatus.OK)
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public KakaoLoginResponse kakaoLogin(
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@RequestBody KakaoLoginRequest kakaoLoginRequest,
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HttpServletRequest request
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) {
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MemberDetails memberDetails = authService.kakaoLogin(kakaoLoginRequest.code());
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UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(
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memberDetails, null, List.of(new SimpleGrantedAuthority(memberDetails.getRole()))
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);
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SecurityContext context = SecurityContextHolder.createEmptyContext();
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context.setAuthentication(authentication);
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SecurityContextHolder.setContext(context);
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SecurityContextHolder.getContext().setAuthentication(authentication);
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request.getSession(true).setAttribute(HttpSessionSecurityContextRepository.SPRING_SECURITY_CONTEXT_KEY, context);
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return new KakaoLoginResponse(memberDetails.getId());
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}
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@Operation(
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summary = "비회원 로그인",
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description = "닉네임을 입력하면 비회원 세션이 생성되고 인증이 설정됩니다. 이후 모든 요청에 세션 인증이 적용됩니다.",

‎src/main/java/com/oronaminc/join/member/security/AuthService.java‎

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@@ -3,19 +3,26 @@
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import static com.oronaminc.join.member.util.MemberMapper.*;
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import java.util.Map;
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import java.util.Optional;
76

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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.http.HttpEntity;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpMethod;
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import org.springframework.http.MediaType;
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import org.springframework.http.ResponseEntity;
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import org.springframework.security.oauth2.client.userinfo.DefaultOAuth2UserService;
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import org.springframework.security.oauth2.client.userinfo.OAuth2UserRequest;
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import org.springframework.security.oauth2.core.OAuth2AuthenticationException;
11-
import org.springframework.security.oauth2.core.user.OAuth2User;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import org.springframework.util.LinkedMultiValueMap;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.client.RestTemplate;
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import com.oronaminc.join.member.dao.MemberRepository;
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import com.oronaminc.join.member.domain.Member;
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import com.oronaminc.join.member.dto.GuestLoginRequest;
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import com.oronaminc.join.member.dto.KakaoUserResponse;
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import com.oronaminc.join.member.service.MemberReader;
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import com.oronaminc.join.member.util.MemberMapper;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
@@ -27,32 +34,91 @@ public class AuthService extends DefaultOAuth2UserService {
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private final MemberRepository memberRepository;
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private final MemberReader memberReader;
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@Override
31-
public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2AuthenticationException {
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OAuth2User oAuth2User = super.loadUser(userRequest);
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Map<String, Object> attributes = oAuth2User.getAttributes();
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private final RestTemplate restTemplate = new RestTemplate();
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private static final String TOKEN_URI = "https://kauth.kakao.com/oauth/token";
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private static final String USER_INFO_URI = "https://kapi.kakao.com/v2/user/me";
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@Value("${spring.security.oauth2.client.registration.kakao.client-id}")
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private String clientId;
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@Value("${spring.security.oauth2.client.registration.kakao.redirect-uri}")
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private String redirectUri;
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@Value("${spring.security.oauth2.client.registration.kakao.client-secret}")
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private String clientSecret;
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// @Override
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// public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2AuthenticationException {
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// OAuth2User oAuth2User = super.loadUser(userRequest);
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// Map<String, Object> attributes = oAuth2User.getAttributes();
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//
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// log.info("attributes :: " + attributes);
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//
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// Map<String, Object> kakaoAccount = (Map<String, Object>) attributes.get("kakao_account");
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// Map<String, Object> profile = (Map<String, Object>) kakaoAccount.get("profile");
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//
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//
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// Optional<Member> optionalMember = memberReader.findByEmail(kakaoAccount.get("email").toString());
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//
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// Member member = optionalMember.orElseGet(() -> memberRepository.save(toKakaoMember(kakaoAccount, profile)));
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//
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// return toOAuth2MemberDetails(member);
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// }
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35-
log.info("attributes :: " + attributes);
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@Transactional
70+
public MemberDetails loadGuest(GuestLoginRequest guestLoginRequest) {
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Member guest = toGuestMember(guestLoginRequest);
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Map<String, Object> kakaoAccount = (Map<String, Object>) attributes.get("kakao_account");
38-
Map<String, Object> profile = (Map<String, Object>) kakaoAccount.get("profile");
73+
memberRepository.save(guest);
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guest.registerGuest();
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76+
return toGuestMemberDetails(guest);
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}
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41-
Optional<Member> optionalMember = memberReader.findByEmail(kakaoAccount.get("email").toString());
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@Transactional
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public MemberDetails kakaoLogin(String code) {
81+
String accessToken = getAccessToken(code);
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KakaoUserResponse kakaoUser = getUserInfo(accessToken);
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Member member = optionalMember.orElseGet(() -> memberRepository.save(toKakaoMember(kakaoAccount, profile)));
84+
Member member = memberRepository.findByEmail(kakaoUser.email())
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.orElseGet(() -> memberRepository.save(MemberMapper.toNewKakaoMember(kakaoUser)));
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4587
return toOAuth2MemberDetails(member);
4688
}
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48-
@Transactional
49-
public MemberDetails loadGuest(GuestLoginRequest guestLoginRequest) {
50-
Member guest = toGuestMember(guestLoginRequest);
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private String getAccessToken(String code) {
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HttpHeaders headers = new HttpHeaders();
92+
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
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52-
memberRepository.save(guest);
53-
guest.registerGuest();
94+
MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
95+
params.add("grant_type", "authorization_code");
96+
params.add("client_id", clientId);
97+
params.add("redirect_uri", redirectUri);
98+
params.add("code", code);
99+
params.add("client_secret", clientSecret);
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55-
return toGuestMemberDetails(guest);
101+
HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(params, headers);
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103+
ResponseEntity<Map> response = restTemplate.postForEntity(TOKEN_URI, request, Map.class);
104+
105+
return (String) response.getBody().get("access_token");
56106
}
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108+
private KakaoUserResponse getUserInfo(String accessToken) {
109+
HttpHeaders headers = new HttpHeaders();
110+
headers.setBearerAuth(accessToken);
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headers.setContentType(MediaType.APPLICATION_JSON);
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113+
HttpEntity<Void> entity = new HttpEntity<>(headers);
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ResponseEntity<Map> response = restTemplate.exchange(USER_INFO_URI, HttpMethod.GET, entity, Map.class);
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117+
Map<String, Object> attributes = response.getBody();
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Map<String, Object> kakaoAccount = (Map<String, Object>) attributes.get("kakao_account");
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Map<String, Object> profile = (Map<String, Object>) kakaoAccount.get("profile");
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return MemberMapper.toKakaoUserResponse(kakaoAccount, profile);
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}
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}

‎src/main/java/com/oronaminc/join/member/security/SecurityConfig.java‎

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public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
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return http
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.csrf(csrf -> csrf.disable())
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.cors(cors -> cors.disable())
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.authorizeHttpRequests(auth -> auth
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.requestMatchers(
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"/api/auth/guest",
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"/api/auth/kakao",
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"/login"
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)
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.anonymous()

‎src/main/java/com/oronaminc/join/member/util/MemberMapper.java‎

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import com.oronaminc.join.member.domain.Member;
66
import com.oronaminc.join.member.domain.MemberType;
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import com.oronaminc.join.member.dto.GuestLoginRequest;
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import com.oronaminc.join.member.dto.KakaoUserResponse;
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import com.oronaminc.join.member.security.MemberDetails;
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import lombok.AccessLevel;
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4748
.memberType(MemberType.MEMBER)
4849
.build();
4950
}
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52+
public static Member toNewKakaoMember(KakaoUserResponse kakaoUser) {
53+
return Member.builder()
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.email(kakaoUser.email())
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.nickname(kakaoUser.nickname())
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.profileImage(kakaoUser.profileImageUrl())
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.memberType(MemberType.MEMBER)
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.build();
59+
}
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61+
public static KakaoUserResponse toKakaoUserResponse(Map<String, Object> kakaoAccount, Map<String, Object> profile) {
62+
return KakaoUserResponse.builder()
63+
.email((String) kakaoAccount.get("email"))
64+
.nickname((String) profile.get("nickname"))
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.profileImageUrl((String) profile.get("profile_image_url"))
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.build();
67+
}
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}

‎src/test/resources/application.yml‎

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hibernate:
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ddl-auto: create
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security:
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oauth2:
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client:
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provider:
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kakao:
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authorization-uri: https://kauth.kakao.com/oauth/authorize
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token-uri: https://kauth.kakao.com/oauth/token
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user-info-uri: https://kapi.kakao.com/v2/user/me
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user-name-attribute: id
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registration:
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kakao:
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client-name: Kakao
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client-id: KAKAO_CLIENT_ID
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client-secret: KAKAO_CLIENT_SECRET
27+
redirect-uri: KAKAO_REDIRECT_URI
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authorization-grant-type: authorization_code
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client-authentication-method: client_secret_post
30+
scope:
31+
- profile_nickname
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- profile_image
33+
- account_email
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cloud:
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aws:
1537
region:

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