refactor: gallery도메인에 예외 핸들러를 추가하고, 인증 실패시 예외 메시지를 던지도록 수정한다

auth/auth-interceptor/src/main/java/me/nalab/auth/interceptor/AuthExceptionAdvice.java

@@ -0,0 +1,16 @@
+package me.nalab.auth.interceptor;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice
+public class AuthExceptionAdvice {
+
+    @ExceptionHandler(CannotValidTokenException.class)
+    @ResponseStatus(HttpStatus.UNAUTHORIZED)
+    public ErrorTemplate handleCannotValidTokenException(CannotValidTokenException exception) {
+        return ErrorTemplate.of(exception.getMessage());
+    }
+}

auth/auth-interceptor/src/main/java/me/nalab/auth/interceptor/CannotValidTokenException.java

@@ -0,0 +1,8 @@
+package me.nalab.auth.interceptor;
+
+public class CannotValidTokenException extends RuntimeException {
+
+    public CannotValidTokenException(String message) {
+        super(message);
+    }
+}

auth/auth-interceptor/src/main/java/me/nalab/auth/interceptor/ErrorTemplate.java

@@ -0,0 +1,21 @@
+package me.nalab.auth.interceptor;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Getter;
+
+@Getter
+public class ErrorTemplate {
+
+    @JsonProperty("response_messages")
+    private final String message;
+
+    private ErrorTemplate(String message) {
+        this.message = message;
+    }
+
+    public static ErrorTemplate of(String message) {
+        return new ErrorTemplate(message);
+    }
+
+}
+

auth/auth-interceptor/src/main/java/me/nalab/auth/interceptor/JwtDecryptInterceptor.java

@@ -30,12 +30,20 @@ public boolean preHandle(HttpServletRequest request, HttpServletResponse respons
 		if (!isExcludedURI(request)) {
 			String token = request.getHeader("Authorization");
 			throwIfCannotValidToken(token);
-			Long targetId = targetIdGetPort.getTargetId(token.split(" ")[1]);
+			Long targetId = getTargetId(token);
 			request.setAttribute("logined", targetId);
 		}
 		return true;
 	}
 
+	private Long getTargetId(String token) {
+		try {
+			return targetIdGetPort.getTargetId(token.split(" ")[1]);
+		} catch (Exception exception) {
+			throw new CannotValidTokenException(exception.getMessage());
+		}
+	}
+
 	private boolean isPreflight(HttpServletRequest request) {
 		return request.getMethod().equals("OPTIONS");
 	}
@@ -63,7 +71,7 @@ private boolean isExcludedURI(HttpServletRequest httpServletRequest) {
 
 	private void throwIfCannotValidToken(String token) {
 		if (token == null) {
-			throw new CannotValidMockTokenException();
+			throw new CannotValidTokenException("Null token");
 		}
 	}
 

gallery/src/main/kotlin/me/nalab/gallery/controller/ErrorTemplate.kt

@@ -0,0 +1,15 @@
+package me.nalab.gallery.controller
+
+import com.fasterxml.jackson.annotation.JsonProperty
+
+class ErrorTemplate(
+    @JsonProperty("response_messages")
+    private val message: String,
+) {
+    companion object {
+        fun of(message: String): ErrorTemplate {
+            return ErrorTemplate(message)
+        }
+    }
+}
+

gallery/src/main/kotlin/me/nalab/gallery/controller/GalleryController.kt

@@ -48,4 +48,8 @@ class GalleryController(
         return galleryGetApp.getGalleries(job, page, count, orderType)
     }
 
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ExceptionHandler(IllegalArgumentException::class)
+    fun handleIllegalArgumentException(exception: IllegalArgumentException): ErrorTemplate =
+        ErrorTemplate.of(exception.message ?: "잘못된 요청입니다.")
 }