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feat: 카카오 로그인 API
1 parent 7d44c34 commit 43c6e26

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6 files changed

+157
-24
lines changed

6 files changed

+157
-24
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

Lines changed: 27 additions & 5 deletions
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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 +19,12 @@
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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.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 +39,29 @@
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public class AuthController {
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private final AuthService authService;
4241

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@PostMapping("/kakao")
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@ResponseStatus(HttpStatus.OK)
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public Long 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 memberDetails.getId();
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}
64+
4365
@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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55
import java.util.Map;
6-
import java.util.Optional;
76

7+
import org.springframework.beans.factory.annotation.Value;
8+
import org.springframework.http.HttpEntity;
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import org.springframework.http.HttpHeaders;
10+
import org.springframework.http.HttpMethod;
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import org.springframework.http.MediaType;
12+
import org.springframework.http.ResponseEntity;
813
import org.springframework.security.oauth2.client.userinfo.DefaultOAuth2UserService;
9-
import org.springframework.security.oauth2.client.userinfo.OAuth2UserRequest;
10-
import org.springframework.security.oauth2.core.OAuth2AuthenticationException;
11-
import org.springframework.security.oauth2.core.user.OAuth2User;
1214
import org.springframework.stereotype.Service;
1315
import org.springframework.transaction.annotation.Transactional;
16+
import org.springframework.util.LinkedMultiValueMap;
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import org.springframework.util.MultiValueMap;
18+
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;
23+
import com.oronaminc.join.member.dto.KakaoUserResponse;
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import com.oronaminc.join.member.service.MemberReader;
25+
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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30-
@Override
31-
public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2AuthenticationException {
32-
OAuth2User oAuth2User = super.loadUser(userRequest);
33-
Map<String, Object> attributes = oAuth2User.getAttributes();
37+
private final RestTemplate restTemplate = new RestTemplate();
38+
39+
private static final String TOKEN_URI = "https://kauth.kakao.com/oauth/token";
40+
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;
50+
51+
// @Override
52+
// public OAuth2User loadUser(OAuth2UserRequest userRequest) throws OAuth2AuthenticationException {
53+
// OAuth2User oAuth2User = super.loadUser(userRequest);
54+
// Map<String, Object> attributes = oAuth2User.getAttributes();
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//
56+
// log.info("attributes :: " + attributes);
57+
//
58+
// Map<String, Object> kakaoAccount = (Map<String, Object>) attributes.get("kakao_account");
59+
// Map<String, Object> profile = (Map<String, Object>) kakaoAccount.get("profile");
60+
//
61+
//
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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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//
66+
// return toOAuth2MemberDetails(member);
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// }
3468

35-
log.info("attributes :: " + attributes);
69+
@Transactional
70+
public MemberDetails loadGuest(GuestLoginRequest guestLoginRequest) {
71+
Member guest = toGuestMember(guestLoginRequest);
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37-
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);
74+
guest.registerGuest();
3975

76+
return toGuestMemberDetails(guest);
77+
}
4078

41-
Optional<Member> optionalMember = memberReader.findByEmail(kakaoAccount.get("email").toString());
79+
@Transactional
80+
public MemberDetails kakaoLogin(String code) {
81+
String accessToken = getAccessToken(code);
82+
KakaoUserResponse kakaoUser = getUserInfo(accessToken);
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43-
Member member = optionalMember.orElseGet(() -> memberRepository.save(toKakaoMember(kakaoAccount, profile)));
84+
Member member = memberRepository.findByEmail(kakaoUser.email())
85+
.orElseGet(() -> memberRepository.save(MemberMapper.toNewKakaoMember(kakaoUser)));
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4587
return toOAuth2MemberDetails(member);
4688
}
4789

48-
@Transactional
49-
public MemberDetails loadGuest(GuestLoginRequest guestLoginRequest) {
50-
Member guest = toGuestMember(guestLoginRequest);
90+
private String getAccessToken(String code) {
91+
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);
102+
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);
111+
headers.setContentType(MediaType.APPLICATION_JSON);
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113+
HttpEntity<Void> entity = new HttpEntity<>(headers);
114+
115+
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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119+
Map<String, Object> kakaoAccount = (Map<String, Object>) attributes.get("kakao_account");
120+
Map<String, Object> profile = (Map<String, Object>) kakaoAccount.get("profile");
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122+
return MemberMapper.toKakaoUserResponse(kakaoAccount, profile);
123+
}
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}

‎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;
8+
import com.oronaminc.join.member.dto.KakaoUserResponse;
89
import com.oronaminc.join.member.security.MemberDetails;
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import lombok.AccessLevel;
@@ -47,4 +48,21 @@ public static Member toKakaoMember(Map<String, Object> kakaoAccount, Map<String,
4748
.memberType(MemberType.MEMBER)
4849
.build();
4950
}
51+
52+
public static Member toNewKakaoMember(KakaoUserResponse kakaoUser) {
53+
return Member.builder()
54+
.email(kakaoUser.email())
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.nickname(kakaoUser.nickname())
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.profileImage(kakaoUser.profileImageUrl())
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.memberType(MemberType.MEMBER)
58+
.build();
59+
}
60+
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();
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}
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}

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