refactoring

Resolve #7779

packages/backend/src/services/drive/internal-storage.ts

@@ -0,0 +1,35 @@
+import * as fs from 'fs';
+import * as Path from 'path';
+import { fileURLToPath } from 'url';
+import { dirname } from 'path';
+import config from '@/config/index';
+
+//const _filename = fileURLToPath(import.meta.url);
+const _filename = __filename;
+const _dirname = dirname(_filename);
+
+export class InternalStorage {
+	private static readonly path = Path.resolve(_dirname, '../../../../../files');
+
+	public static resolvePath = (key: string) => Path.resolve(InternalStorage.path, key);
+
+	public static read(key: string) {
+		return fs.createReadStream(InternalStorage.resolvePath(key));
+	}
+
+	public static saveFromPath(key: string, srcPath: string) {
+		fs.mkdirSync(InternalStorage.path, { recursive: true });
+		fs.copyFileSync(srcPath, InternalStorage.resolvePath(key));
+		return `${config.url}/files/${key}`;
+	}
+
+	public static saveFromBuffer(key: string, data: Buffer) {
+		fs.mkdirSync(InternalStorage.path, { recursive: true });
+		fs.writeFileSync(InternalStorage.resolvePath(key), data);
+		return `${config.url}/files/${key}`;
+	}
+
+	public static del(key: string) {
+		fs.unlink(InternalStorage.resolvePath(key), () => {});
+	}
+}