Merge pull request #85 from CSID-DGU/backend/fix/CheatingDB

BE: [Feature] 부정행위 영상 저장 #6, #26

src/backend/Eyesee/src/main/java/com/fortune/eyesee/config/AmazonS3Config.java

@@ -0,0 +1,34 @@
+package com.fortune.eyesee.config;
+
+import com.amazonaws.auth.AWSStaticCredentialsProvider;
+import com.amazonaws.auth.BasicAWSCredentials;
+import com.amazonaws.services.s3.AmazonS3;
+import com.amazonaws.services.s3.AmazonS3ClientBuilder;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class AmazonS3Config {
+
+    @Value("${aws.accessKey}")
+    private String accessKey;
+
+    @Value("${aws.secretKey}")
+    private String secretKey;
+
+    @Value("${aws.region}")
+    private String region;
+
+    @Bean
+    public AmazonS3 amazonS3() {
+        // AWS 자격 증명 생성
+        BasicAWSCredentials awsCredentials = new BasicAWSCredentials(accessKey, secretKey);
+
+        // AmazonS3 클라이언트 생성 및 반환
+        return AmazonS3ClientBuilder.standard()
+                .withRegion(region)
+                .withCredentials(new AWSStaticCredentialsProvider(awsCredentials))
+                .build();
+    }
+}

src/backend/Eyesee/src/main/java/com/fortune/eyesee/config/SecurityConfig.java

@@ -41,7 +41,9 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
                                 "/api/sessions/join",
                                 "/api/sessions/student",
                                 "/api/cheatings",
-                                "/api/exams/cheating-types"
+                                "/api/exams/*/cheating-types",
+                                "/api/video"
+
                         ).permitAll()  // 인증 불필요 경로
                         .anyRequest().authenticated()  // 나머지 요청은 인증 필요
                 )

src/backend/Eyesee/src/main/java/com/fortune/eyesee/controller/VideoController.java

@@ -0,0 +1,58 @@
+package com.fortune.eyesee.controller;
+
+import com.fortune.eyesee.service.VideoService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+
+@Slf4j
+@RestController
+@RequestMapping("/api/video")
+public class VideoController {
+
+    private final VideoService videoService;
+
+    public VideoController(VideoService videoService) {
+        this.videoService = videoService;
+    }
+
+
+    @PostMapping
+    public ResponseEntity<String> uploadVideo(
+            @RequestParam("userId") Integer userId,
+            @RequestParam("startOffset") String startOffset, // ISO 8601 형식 문자열
+            @RequestParam("endOffset") String endOffset, // ISO 8601 형식 문자열
+            @RequestPart("video") MultipartFile videoFile) {
+        try {
+            System.out.println("컨트롤러 호출됨 - userId: " + userId);
+            System.out.println("파일 크기: " + videoFile.getSize());
+
+            // ISO 8601 문자열을 LocalDateTime으로 변환
+            DateTimeFormatter formatter = DateTimeFormatter.ISO_DATE_TIME; // ISO 8601 형식 지원
+            LocalDateTime startDateTime = LocalDateTime.parse(startOffset, formatter);
+            LocalDateTime endDateTime = LocalDateTime.parse(endOffset, formatter);
+
+            System.out.println("시작 시간: " + startDateTime);
+            System.out.println("종료 시간: " + endDateTime);
+
+            String videoUrl = videoService.saveVideo(userId, startDateTime, endDateTime, videoFile);
+
+            return ResponseEntity.ok(videoUrl);
+        } catch (DateTimeParseException e) {
+            e.printStackTrace();
+            log.error("날짜 형식 변환 오류: ", e);
+            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("잘못된 날짜 형식입니다.");
+        } catch (Exception e) {
+            e.printStackTrace();
+            log.error("Failed to upload video", e);
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("Failed to upload video");
+        }
+    }
+}

src/backend/Eyesee/src/main/java/com/fortune/eyesee/service/VideoService.java

@@ -0,0 +1,48 @@
+package com.fortune.eyesee.service;
+
+import com.amazonaws.services.s3.AmazonS3;
+import com.amazonaws.services.s3.model.ObjectMetadata;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+@Service
+public class VideoService {
+
+    @Value("${aws.bucketName}")
+    private String bucketName;
+
+    private final AmazonS3 amazonS3;
+
+    public VideoService(AmazonS3 amazonS3) {
+        this.amazonS3 = amazonS3;
+    }
+
+    public String saveVideo(Integer userId, LocalDateTime startOffset, LocalDateTime endOffset, MultipartFile videoFile) throws IOException {
+        String fileName = generateFileName(userId);
+        String key = "videos/" + userId + "/" + fileName;
+
+        try {
+            // S3에 업로드
+            ObjectMetadata metadata = new ObjectMetadata();
+            metadata.setContentType(videoFile.getContentType());
+            metadata.setContentLength(videoFile.getSize());
+
+            amazonS3.putObject(bucketName, key, videoFile.getInputStream(), metadata);
+
+            // S3 URL 반환
+            return amazonS3.getUrl(bucketName, key).toString();
+
+        } catch (Exception e) {
+            throw new IOException("Failed to upload video to S3", e);
+        }
+    }
+
+    private String generateFileName(Integer userId) {
+        return userId + "_" + UUID.randomUUID() + ".webm";
+    }
+}