[Setting] S3 세팅(#14)

carrotMarket/src/main/java/org/sopt/carrotMarket/external/AwsConfig.java

@@ -0,0 +1,48 @@
+package org.sopt.carrotMarket.external;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import software.amazon.awssdk.auth.credentials.SystemPropertyCredentialsProvider;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
+
+@Configuration
+public class AwsConfig {
+
+    private static final String AWS_ACCESS_KEY_ID = "aws.accessKeyId";
+    private static final String AWS_SECRET_ACCESS_KEY = "aws.secretAccessKey";
+
+    private final String accessKey;
+    private final String secretKey;
+    private final String regionString;
+
+    public AwsConfig(@Value("${aws-property.access-key}") final String accessKey,
+                     @Value("${aws-property.secret-key}") final String secretKey,
+                     @Value("${aws-property.aws-region}") final String regionString) {
+        this.accessKey = accessKey;
+        this.secretKey = secretKey;
+        this.regionString = regionString;
+    }
+
+
+    @Bean
+    public SystemPropertyCredentialsProvider systemPropertyCredentialsProvider() {
+        System.setProperty(AWS_ACCESS_KEY_ID, accessKey);
+        System.setProperty(AWS_SECRET_ACCESS_KEY, secretKey);
+        return SystemPropertyCredentialsProvider.create();
+    }
+
+    @Bean
+    public Region getRegion() {
+        return Region.of(regionString);
+    }
+
+    @Bean
+    public S3Client getS3Client() {
+        return S3Client.builder()
+                .region(getRegion())
+                .credentialsProvider(systemPropertyCredentialsProvider())
+                .build();
+    }
+}

carrotMarket/src/main/java/org/sopt/carrotMarket/external/S3Service.java

@@ -0,0 +1,80 @@
+package org.sopt.carrotMarket.external;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.multipart.MultipartFile;
+import software.amazon.awssdk.core.sync.RequestBody;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
+import software.amazon.awssdk.services.s3.model.PutObjectRequest;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+
+@Component
+public class S3Service {
+
+    private final String bucketName;
+    private final AwsConfig awsConfig;
+    private static final List<String> IMAGE_EXTENSIONS = Arrays.asList("image/jpeg", "image/png", "image/jpg", "image/webp");
+
+
+    public S3Service(@Value("${aws-property.s3-bucket-name}") final String bucketName, AwsConfig awsConfig) {
+        this.bucketName = bucketName;
+        this.awsConfig = awsConfig;
+    }
+
+
+    public String uploadImage(String directoryPath, MultipartFile image) throws IOException {
+        final String key = directoryPath + generateImageFileName();
+        final S3Client s3Client = awsConfig.getS3Client();
+
+        validateExtension(image);
+        validateFileSize(image);
+
+        PutObjectRequest request = PutObjectRequest.builder()
+                .bucket(bucketName)
+                .key(key)
+                .contentType(image.getContentType())
+                .contentDisposition("inline")
+                .build();
+
+        RequestBody requestBody = RequestBody.fromBytes(image.getBytes());
+        s3Client.putObject(request, requestBody);
+        return key;
+    }
+
+    public void deleteImage(String key) throws IOException {
+        final S3Client s3Client = awsConfig.getS3Client();
+
+        s3Client.deleteObject((DeleteObjectRequest.Builder builder) ->
+                builder.bucket(bucketName)
+                        .key(key)
+                        .build()
+        );
+    }
+
+
+    private String generateImageFileName() {
+        return UUID.randomUUID() + ".jpg";
+    }
+
+
+    private void validateExtension(MultipartFile image) {
+        String contentType = image.getContentType();
+        if (!IMAGE_EXTENSIONS.contains(contentType)) {
+            throw new RuntimeException("이미지 확장자는 jpg, png, webp만 가능합니다.");
+        }
+    }
+
+    private static final Long MAX_FILE_SIZE = 5 * 1024 * 1024L;
+
+    private void validateFileSize(MultipartFile image) {
+        if (image.getSize() > MAX_FILE_SIZE) {
+            throw new RuntimeException("이미지 사이즈는 5MB를 넘을 수 없습니다.");
+        }
+    }
+
+}