なんかもうめっちゃ変えた

packages/backend/src/core/S3Service.ts

@@ -0,0 +1,38 @@
+import { URL } from 'node:url';
+import { Inject, Injectable } from '@nestjs/common';
+import S3 from 'aws-sdk/clients/s3.js';
+import { DI } from '@/di-symbols.js';
+import { Config } from '@/config.js';
+import type { Meta } from '@/models/entities/Meta.js';
+import { HttpRequestService } from './HttpRequestService.js';
+
+@Injectable()
+export class S3Service {
+	constructor(
+		@Inject(DI.config)
+		private config: Config,
+
+		private httpRequestService: HttpRequestService,
+	) {
+	}
+
+	public getS3(meta: Meta) {
+		const u = meta.objectStorageEndpoint != null
+			? `${meta.objectStorageUseSSL ? 'https://' : 'http://'}${meta.objectStorageEndpoint}`
+			: `${meta.objectStorageUseSSL ? 'https://' : 'http://'}example.net`;
+	
+		return new S3({
+			endpoint: meta.objectStorageEndpoint ?? undefined,
+			accessKeyId: meta.objectStorageAccessKey!,
+			secretAccessKey: meta.objectStorageSecretKey!,
+			region: meta.objectStorageRegion ?? undefined,
+			sslEnabled: meta.objectStorageUseSSL,
+			s3ForcePathStyle: !meta.objectStorageEndpoint	// AWS with endPoint omitted
+				? false
+				: meta.objectStorageS3ForcePathStyle,
+			httpOptions: {
+				agent: this.httpRequestService.getAgentByUrl(new URL(u), !meta.objectStorageUseProxy),
+			},
+		});
+	}
+}