refactor: 기존 presigned-url 발급 로직을 업로드용, 조회용으로 분리

Author: chw0912

src/main/java/com/oronaminc/join/document/api/DocumentController.java

@@ -37,6 +37,6 @@ public DocumentResponse generatePresignedUrl(
             @AuthenticationPrincipal MemberDetails memberDetails
     ) {
         String memberRole = memberDetails.getRole();
-        return documentService.generatePresignedUrl(documentRequest, memberRole);
+        return documentService.generateUploadPresignedUrl(documentRequest, memberRole);
     }
 }

src/main/java/com/oronaminc/join/document/service/DocumentService.java

@@ -37,7 +37,7 @@ public void deleteByRoomId(Long roomId) {
         documentRepository.deleteByRoomId(roomId);
     }
 
-    public DocumentResponse generatePresignedUrl(DocumentRequest request, String memberRole) {
+    public DocumentResponse generateUploadPresignedUrl(DocumentRequest request, String memberRole) {
         if (!memberRole.equals(MemberType.MEMBER.name())) {
             throw new ErrorException(ErrorCode.UNAUTHORIZED_MEMBER);
         }
@@ -52,7 +52,7 @@ public DocumentResponse generatePresignedUrl(DocumentRequest request, String mem
 
         String uuid = UUID.randomUUID().toString();
         String objectKey = "temp/" + uuid + extension;
-        String presignedUrl = s3Service.generatePresignedUrl(objectKey);
+        String presignedUrl = s3Service.generateUploadPresignedUrl(objectKey);
 
         return new DocumentResponse(presignedUrl, objectKey);
     }

src/main/java/com/oronaminc/join/infra/service/S3Service.java

@@ -11,6 +11,8 @@
 import software.amazon.awssdk.services.s3.presigner.S3Presigner;
 import software.amazon.awssdk.services.s3.presigner.model.GetObjectPresignRequest;
 import software.amazon.awssdk.services.s3.presigner.model.PresignedGetObjectRequest;
+import software.amazon.awssdk.services.s3.presigner.model.PresignedPutObjectRequest;
+import software.amazon.awssdk.services.s3.presigner.model.PutObjectPresignRequest;
 
 import java.time.Duration;
 
@@ -25,7 +27,8 @@ public class S3Service {
     @Value("${cloud.aws.s3.bucket}")
     private String bucket;
 
-    public String generatePresignedUrl(String key) {
+    // 조회용
+    public String generateGetPresignedUrl(String key) {
         GetObjectRequest getObjectRequest = GetObjectRequest.builder()
                 .bucket(bucket)
                 .key(key)
@@ -41,6 +44,24 @@ public String generatePresignedUrl(String key) {
         return presignedRequest.url().toString();
     }
 
+    // 업로드용
+    public String generateUploadPresignedUrl(String key) {
+        PutObjectRequest putObjectRequest = PutObjectRequest.builder()
+                .bucket(bucket)
+                .contentType("application/pdf")
+                .key(key)
+                .build();
+
+        PutObjectPresignRequest presignRequest = PutObjectPresignRequest.builder()
+                .signatureDuration(Duration.ofMinutes(3))
+                .putObjectRequest(putObjectRequest)
+                .build();
+
+        PresignedPutObjectRequest presignedRequest = s3Presigner.presignPutObject(presignRequest);
+
+        return presignedRequest.url().toString();
+    }
+
     public void deleteFile(String key) {
         try {
             if (isFileExist(key)) {

src/main/java/com/oronaminc/join/room/service/RoomService.java

@@ -98,7 +98,7 @@ public RoomDetailResponse getRoomDetail(Long memberId, Long roomId) {
         List<Participant> team = participantService.getTeam(roomId);
         Document document = documentReader.getByRoomId(roomId);
         int participantCount = currentParticipantManager.getRoomParticipants(roomId).size();
-        String presignedUrl = s3Service.generatePresignedUrl(document.getFileUrl());
+        String presignedUrl = s3Service.generateGetPresignedUrl(document.getFileUrl());
 
         return RoomMapper.toRoomDetailResponse(room, presenter, team, presignedUrl, memberId, participantCount);
     }