feat: App 최소 버전을 체크하는 api를 추가한다.

.docker/docker-compose.yml

@@ -34,6 +34,7 @@ services:
       APPLE_CLIENT_ID: ${APPLE_CLIENT_ID}
       KAKAO_ADMIN_KEY: ${KAKAO_ADMIN_KEY}
       INVITATION_CODE_KEY: ${INVITATION_CODE_KEY}
+      APP_MINIMUM_VERSION: ${APP_MINIMUM_VERSION}
     volumes:
       - ./logfile:/logs
 

src/main/java/com/moneymong/global/config/security/SecurityConfig.java

@@ -36,6 +36,7 @@ public SecurityFilterChain httpSecurity(HttpSecurity http) throws Exception {
                     auth.requestMatchers("/favicon.ico").permitAll();
                     auth.requestMatchers("/api/v1/users").permitAll();
                     auth.requestMatchers("/api/v1/tokens").permitAll();
+                    auth.requestMatchers("/api/v1/version").permitAll();
                     auth.requestMatchers("/actuator/**").permitAll();
                     auth.anyRequest().authenticated();
                 })

src/main/java/com/moneymong/global/exception/enums/ErrorCode.java

@@ -11,6 +11,7 @@ public enum ErrorCode {
     BAD_REQUEST(MoneymongConstant.BAD_REQUEST, "GLOBAL-400", "잘못된 요청입니다."),
     ACCESS_DENIED(MoneymongConstant.FORBIDDEN, "GLOBAL-403", "접근 권한이 없습니다."),
     INTERNAL_SERVER(MoneymongConstant.INTERNAL_SERVER_ERROR, "GLOBAL-500", "서버 내부 오류입니다."),
+    VERSION_TOO_LOW(MoneymongConstant.BAD_REQUEST, "GLOBAL-400", "앱 업데이트가 필요합니다."),
 
     // ---- 유저 ---- //
     USER_NOT_FOUND(MoneymongConstant.NOT_FOUND, "USER-001", "존재하지 않는 회원입니다."),

src/main/java/com/moneymong/global/version/VersionController.java

@@ -0,0 +1,45 @@
+package com.moneymong.global.version;
+
+import com.moneymong.global.exception.enums.ErrorCode;
+import com.moneymong.global.version.dto.VersionRequest;
+import com.moneymong.global.version.exception.VersionTooLowException;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1/version")
+public class VersionController {
+
+    @Value("${app.minimum.version}")
+    private String minimumAppVersion;
+
+    @PostMapping
+    public String checkVersion(@RequestBody VersionRequest request) {
+        if (isVersionLower(request.getVersion(), minimumAppVersion)) {
+            throw new VersionTooLowException(ErrorCode.VERSION_TOO_LOW);
+        }
+
+        return "Version is up to date.";
+    }
+
+    private boolean isVersionLower(String currentVersion, String minimumVersion) {
+        String[] currentParts = currentVersion.split("\\.");
+        String[] minimumParts = minimumVersion.split("\\.");
+
+        int length = Math.max(currentParts.length, minimumParts.length);
+        for (int i = 0; i < length; i++) {
+            int currentPart = i < currentParts.length ? Integer.parseInt(currentParts[i]) : 0;
+            int minimumPart = i < minimumParts.length ? Integer.parseInt(minimumParts[i]) : 0;
+
+            if (currentPart < minimumPart) {
+                return true;
+            } else if (currentPart > minimumPart) {
+                return false;
+            }
+        }
+        return false;
+    }
+}

src/main/java/com/moneymong/global/version/dto/VersionRequest.java

@@ -0,0 +1,8 @@
+package com.moneymong.global.version.dto;
+
+import lombok.Getter;
+
+@Getter
+public class VersionRequest {
+    private String version;
+}

src/main/java/com/moneymong/global/version/exception/VersionTooLowException.java

@@ -0,0 +1,14 @@
+package com.moneymong.global.version.exception;
+
+import com.moneymong.global.exception.custom.BusinessException;
+import com.moneymong.global.exception.enums.ErrorCode;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(HttpStatus.BAD_REQUEST)
+public class VersionTooLowException extends BusinessException {
+
+    public VersionTooLowException(ErrorCode errorCode) {
+        super(errorCode);
+    }
+}

src/main/resources/application.yml

@@ -70,3 +70,7 @@ decorator:
 agency:
   invitation-code:
     key: ${INVITATION_CODE_KEY}
+
+app:
+  minimum:
+    version: ${APP_MINIMUM_VERSION}