70 lines
2.1 KiB
TypeScript
70 lines
2.1 KiB
TypeScript
/*
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Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
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Copyright (C) 2023 Spacebar and Spacebar Contributors
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import { Storage } from "./Storage";
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import fs from "fs";
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import { join, dirname } from "path";
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import "missing-native-js-functions";
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import { Readable } from "stream";
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import ExifTransformer from "exif-be-gone";
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// TODO: split stored files into separate folders named after cloned route
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function getPath(path: string) {
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// STORAGE_LOCATION has a default value in start.ts
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const root = process.env.STORAGE_LOCATION || "../";
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const filename = join(root, path);
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if (path.indexOf("\0") !== -1 || !filename.startsWith(root))
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throw new Error("invalid path");
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return filename;
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}
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export class FileStorage implements Storage {
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async get(path: string): Promise<Buffer | null> {
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path = getPath(path);
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try {
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return fs.readFileSync(path);
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} catch (error) {
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try {
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const files = fs.readdirSync(path);
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if (!files.length) return null;
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return fs.readFileSync(join(path, files[0]));
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} catch (error) {
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return null;
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}
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}
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}
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async set(path: string, value: Buffer) {
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path = getPath(path);
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if (!fs.existsSync(dirname(path)))
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fs.mkdirSync(dirname(path), { recursive: true });
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const ret = Readable.from(value);
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const cleaned_file = fs.createWriteStream(path);
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ret.pipe(new ExifTransformer()).pipe(cleaned_file);
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}
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async delete(path: string) {
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//TODO we should delete the parent directory if empty
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fs.unlinkSync(getPath(path));
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}
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}
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