Fix/token parsing error (#211)

* fix: token parsing error

* refactor: 중복제거

Author: sypark9646

login-service/src/main/java/com/yapp/crew/config/JwtUtils.java

@@ -1,5 +1,6 @@
 package com.yapp.crew.config;
 
+import com.yapp.crew.domain.errors.TokenRequiredException;
 import com.yapp.crew.domain.model.User;
 import io.jsonwebtoken.Claims;
 import io.jsonwebtoken.Jws;
@@ -56,28 +57,21 @@ private Date generateExpirationDate(Date now) {
 		return calendar.getTime();
 	}
 
-	public String getUserIdFromToken(String token) {
-		token = token.replace(prefix + " ", "");
-		log.info("remove prefix token: " + token);
-
-		String userId;
+	public long getUserIdFromToken(String token) {
 		try {
-			final Claims claims = getClaimsFromToken(token);
-			userId = String.valueOf(claims.get("userId"));
+			final Claims claims = getClaimsFromToken(token).getBody();
+			long userId = Long.parseLong(String.valueOf(claims.get("userId")));
 			log.info("userId from token: " + userId);
+			return userId;
 		} catch (Exception e) {
-			userId = null;
+			throw new TokenRequiredException("[Auto Login Service] Token is required but wasn't sent");
 		}
-		return userId;
 	}
 
 	public Date getExpirationFromToken(String token) {
-		token = token.replace(prefix + " ", "");
-		log.info("remove prefix token: " + token);
-
 		Date expiration;
 		try {
-			final Claims claims = getClaimsFromToken(token);
+			final Claims claims = getClaimsFromToken(token).getBody();
 			expiration = claims.getExpiration();
 			log.info("expiration from token: " + expiration.toString());
 		} catch (Exception e) {
@@ -86,14 +80,16 @@ public Date getExpirationFromToken(String token) {
 		return expiration;
 	}
 
-	private Claims getClaimsFromToken(String token) {
-		Claims claims;
+	private Jws<Claims> getClaimsFromToken(String token) {
+		token = token.replace(prefix + " ", "");
+		log.info("remove prefix token: " + token);
+		
+		Jws<Claims> claims;
 		try {
 			claims = Jwts.parserBuilder()
 					.setSigningKey(Keys.hmacShaKeyFor(secret.getBytes()))
 					.build()
-					.parseClaimsJws(token)
-					.getBody();
+					.parseClaimsJws(token);
 		} catch (Exception e) {
 			claims = null;
 		}

login-service/src/main/java/com/yapp/crew/service/SignInService.java

@@ -50,7 +50,7 @@ public UserAuthResponse signIn(LoginUserInfo loginUserInfo) {
 	}
 
 	public UserAuthResponse autoSignIn(String token) {
-		long userId = Long.parseLong(jwtUtils.getUserIdFromToken(token));
+		long userId = jwtUtils.getUserIdFromToken(token);
 
 		User user = getUserByUserId(userId)
 				.orElseThrow(() -> new UserNotFoundException(userId));

login-service/src/main/java/com/yapp/crew/service/TokenService.java

@@ -29,7 +29,7 @@ public HttpHeaders setToken(User user) {
 	public HttpHeaders refreshToken(User user, String token) {
 		String refreshToken = null;
 		if (jwtUtil.verifyToken(token)) {
-			refreshToken = token;
+			refreshToken = "Bearer " + token;
 		} else {
 			refreshToken = jwtUtil.createToken(user);
 		}

login-service/src/main/java/com/yapp/crew/service/WithdrawService.java

@@ -26,7 +26,7 @@ public WithdrawService(UserRepository userRepository, JwtUtils jwtUtils) {
 
 	@Transactional
 	public UserAuthResponse withdraw(String token) {
-		long userId = Long.parseLong(jwtUtils.getUserIdFromToken(token));
+		long userId = jwtUtils.getUserIdFromToken(token);
 
 		User user = getUserByUserId(userId)
 				.orElseThrow(() -> new UserNotFoundException(userId));