modify : [회원 가입 API] 카카오 로그인 추가

GMD-music-recommend-app · Dec 19, 2022 · 5b28539 · 5b28539
1 parent 099af07
commit 5b28539
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Showing 7 changed files with 145 additions and 7 deletions.
diff --git a/build.gradle b/build.gradle
@@ -52,6 +52,8 @@ dependencies {
 	implementation 'io.springfox:springfox-boot-starter:3.0.0'
 	implementation 'io.springfox:springfox-swagger-ui:3.0.0'
 
+	// gson
+	implementation 'com.google.code.gson:gson:2.10'
 }
 
 tasks.named('test') {

diff --git a/src/main/java/com/sesac/gmd/config/BaseResponseStatus.java b/src/main/java/com/sesac/gmd/config/BaseResponseStatus.java
@@ -30,13 +30,14 @@ public enum BaseResponseStatus {
     POST_USERS_EMPTY_LOCATION(false, 2014, "위치를 입력해주세요."),
 
     POST_USERS_EMPTY_PUSH(false, 2015, "푸시 아이디를 입력해주세요."),
-    POST_USERS_EMPTY_OAUTH(false, 2016, "소셜 아이디를 입력해주세요."),
+    POST_USERS_EMPTY_ACCESS_TOKEN(false, 2016, "소셜 아이디를 입력해주세요."),
 
     POST_USERS_INVAlID_GENDER(false, 2020, "성별을 확인해주세요."),
     POST_USERS_INVAlID_AGE(false, 2021, "나이를 확인해주세요."),
     POST_USERS_INVALID_EMAIL(false, 2022, "이메일 형식을 확인해주세요."),
     POST_USERS_EXISTS_EMAIL(false,2030,"중복된 이메일입니다."),
     POST_USERS_EXISTS_NICKNAME(false,2031,"중복된 닉네임입니다."),
+    POST_USERS_NO_EXISTS_EMAIL(false,2032,"존재하지 않는 이메일입니다."),
 
     // pins
     POST_PINS_EMPTY_TITLE(false, 2040, "제목을 입력해주세요."),

diff --git a/src/main/java/com/sesac/gmd/src/test/TestController.java b/src/main/java/com/sesac/gmd/src/test/TestController.java
@@ -7,7 +7,9 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.bind.annotation.RestController;
+import springfox.documentation.annotations.ApiIgnore;
 
+@ApiIgnore
 @RestController
 @RequestMapping("/test")
 public class TestController {

diff --git a/src/main/java/com/sesac/gmd/src/user/UserController.java b/src/main/java/com/sesac/gmd/src/user/UserController.java
@@ -13,6 +13,7 @@
 import io.swagger.annotations.ApiOperation;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
+import springfox.documentation.annotations.ApiIgnore;
 
 import java.util.List;
 
@@ -37,9 +38,19 @@ public UserController(UserProvider userProvider, UserService userService, JwtSer
         this.jwtService = jwtService;
     }
 
-    /* 회원가입 API (카카오 제외) */
-    @ApiOperation("임시 회원가입")
-    @PostMapping("/sign-up")
+    /* 카카오 로그인 (프론트가 없는 경우) */
+    @ApiIgnore
+    @ResponseBody
+    @GetMapping("/kakao")
+    public void kakaoCallback(@RequestParam String code) {
+        // 코드를 통해 Access Token을 받아옴
+        String token = userService.getKaKaoAccessToken(code);
+        userService.createKakaoUser(token);
+    }
+
+    /* 회원가입 API */
+    @ApiOperation("회원 가입")
+    @PostMapping("/sign-up/kakao")
     public BaseResponse<PostUserRes> createUser(@RequestBody PostUserReq postUserReq) {
         // NULL 값 체크
         BaseResponseStatus status = userValidation(postUserReq);
@@ -50,6 +61,12 @@ public BaseResponse<PostUserRes> createUser(@RequestBody PostUserReq postUserReq
                 return new BaseResponse<>(POST_USERS_INVALID_EMAIL);
             }
 
+            // 카카오 이메일 비교
+            String kakaoEmail = userService.createKakaoUser(postUserReq.getAccessToken());
+            if(!kakaoEmail.equals(postUserReq.getEmail())) {
+                return new BaseResponse<>(POST_USERS_NO_EXISTS_EMAIL);
+            }
+
             try {
                 PostUserRes postUserRes = userService.createUser(postUserReq);
                 return new BaseResponse<>(postUserRes);

diff --git a/src/main/java/com/sesac/gmd/src/user/UserDao.java b/src/main/java/com/sesac/gmd/src/user/UserDao.java
@@ -22,11 +22,11 @@ public void setDataSource(DataSource dataSource) {
 
     /* 회원 가입 API */
     public int createUser(PostUserReq postUserReq) {
-        String query = "insert into user_tbl values(null, ?, ?, ?, ?, ?, ?, ?, ?, ?, default, default, default, default)";
+        String query = "insert into user_tbl values(null, ?, ?, ?, ?, ?, ?, ?, ?, default, default, default, default)";
         Object[] params = new Object[] {
                 postUserReq.getNickname(), postUserReq.getGender(), postUserReq.getAge(), postUserReq.getEmail(),
                 postUserReq.getState(), postUserReq.getCity(), postUserReq.getStreet(),
-                postUserReq.getPushId(), postUserReq.getAccessToken() };
+                postUserReq.getPushId() };
 
         this.jdbcTemplate.update(query, params);
 

diff --git a/src/main/java/com/sesac/gmd/src/user/UserService.java b/src/main/java/com/sesac/gmd/src/user/UserService.java
@@ -1,5 +1,7 @@
 package com.sesac.gmd.src.user;
 
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParser;
 import com.sesac.gmd.config.BaseException;
 import com.sesac.gmd.src.user.model.PatchLocationReq;
 import com.sesac.gmd.src.user.model.PatchNicknameReq;
@@ -9,6 +11,10 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.io.*;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
 import static com.sesac.gmd.config.BaseResponseStatus.*;
 
 @Service
@@ -26,6 +32,8 @@ public UserService(UserProvider userProvider, UserDao userDao, JwtService jwtSer
         this.jwtService = jwtService;
     }
 
+    /** API **/
+
     /* 회원 가입 API */
     public PostUserRes createUser(PostUserReq postUserReq) throws BaseException {
         // 이메일 중복 체크
@@ -109,5 +117,113 @@ public String patchIsPushed(int userIdx) throws BaseException {
             throw new BaseException(DATABASE_ERROR);
         }
     }
+
+    /** 카카오 로그인 **/
+
+    /* 카카오 A.T 받기 (프론트가 없는 경우) */
+    public String getKaKaoAccessToken(String code) {
+        String access_Token="";
+        String refresh_Token ="";
+        String reqURL = "https://kauth.kakao.com/oauth/token";
+
+        try{
+            URL url = new URL(reqURL);
+            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+
+            //POST 요청을 위해 기본값이 false인 setDoOutput을 true로
+            conn.setRequestMethod("POST");
+            conn.setDoOutput(true);
+
+            //POST 요청에 필요로 요구하는 파라미터 스트림을 통해 전송
+            BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(conn.getOutputStream()));
+            StringBuilder sb = new StringBuilder();
+            sb.append("grant_type=authorization_code");
+            sb.append("&client_id=be43e245f4aedc78d201da5b853a1a4e"); // REST_API_KEY 입력
+            sb.append("&redirect_uri=http://localhost:9000/users/kakao"); // 인가코드 받은 redirect_uri 입력
+            sb.append("&code=").append(code);
+            bw.write(sb.toString());
+            bw.flush();
+
+            //결과 코드가 200이라면 성공
+            int responseCode = conn.getResponseCode();
+            System.out.println("responseCode : " + responseCode);
+            //요청을 통해 얻은 JSON타입의 Response 메세지 읽어오기
+            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+            String line = "";
+            StringBuilder result = new StringBuilder();
+
+            while ((line = br.readLine()) != null) {
+                result.append(line);
+            }
+            System.out.println("response body : " + result);
+
+            //Gson 라이브러리에 포함된 클래스로 JSON파싱 객체 생성
+            JsonParser parser = new JsonParser();
+            JsonElement element = parser.parse(result.toString());
+
+            access_Token = element.getAsJsonObject().get("access_token").getAsString();
+            refresh_Token = element.getAsJsonObject().get("refresh_token").getAsString();
+
+            System.out.println("access_token : " + access_Token);
+            System.out.println("refresh_token : " + refresh_Token);
+
+            br.close();
+            bw.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return access_Token;
+    }
+
+    /* Access Token을 사용하여 사용자 정보 받아오기 */
+    public String createKakaoUser(String token) {
+
+        String reqURL = "https://kapi.kakao.com/v2/user/me";
+        String email = "";
+
+        //access_token을 이용하여 사용자 정보 조회
+        try {
+            URL url = new URL(reqURL);
+            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+
+            conn.setRequestMethod("POST");
+            conn.setDoOutput(true);
+            conn.setRequestProperty("Authorization", "Bearer " + token); //전송할 header 작성, access_token전송
+
+            //결과 코드가 200이라면 성공
+            int responseCode = conn.getResponseCode();
+            System.out.println("responseCode : " + responseCode);
+
+            //요청을 통해 얻은 JSON타입의 Response 메세지 읽어오기
+            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+            String line = "";
+            StringBuilder result = new StringBuilder();
+
+            while ((line = br.readLine()) != null) {
+                result.append(line);
+            }
+            System.out.println("response body : " + result);
+
+            //Gson 라이브러리로 JSON파싱
+            JsonParser parser = new JsonParser();
+            JsonElement element = parser.parse(result.toString());
+
+            boolean hasEmail = element.getAsJsonObject().get("kakao_account").getAsJsonObject().get("has_email").getAsBoolean();
+            if (hasEmail) {
+                email = element.getAsJsonObject().get("kakao_account").getAsJsonObject().get("email").getAsString();
+            }
+
+            System.out.println("email : " + email);
+
+            br.close();
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return email;
+    }
+
 }
 
diff --git a/src/main/java/com/sesac/gmd/utils/Validation.java b/src/main/java/com/sesac/gmd/utils/Validation.java
@@ -28,7 +28,7 @@ public static BaseResponseStatus userValidation(PostUserReq postUserReq) {
             return POST_USERS_EMPTY_PUSH;
         }
         if(postUserReq.getAccessToken().isBlank()) {
-            return POST_USERS_EMPTY_OAUTH;
+            return POST_USERS_EMPTY_ACCESS_TOKEN;
         }
 
         // 성별을 제대로 적었는지 확인