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🔒 fix path traversal security issue

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This commit is contained in:
Flam3rboy 2021-08-07 13:15:26 +02:00
parent 320fef002e
commit a6eac74236
1 changed files with 8 additions and 10 deletions
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18
src/util/FileStorage.ts
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@ -1,26 +1,24 @@
import { Storage } from "./Storage";
import fs from "fs";
import { join } from "path";
import { join, relative } from "path";
import "missing-native-js-functions";
function getPath(path: string) {
// STORAGE_LOCATION has a default value in start.ts
return join(process.env.STORAGE_LOCATION || "../", relative("/", path));
}
export class FileStorage implements Storage {
async get(path: string): Promise<Buffer | null> {
path = join(process.env.STORAGE_LOCATION || "", path);
try {
const file = fs.readFileSync(path);
// @ts-ignore
return file;
return fs.readFileSync(getPath(path));
} catch (error) {
return null;
}
}
async set(path: string, value: any) {
path = join(process.env.STORAGE_LOCATION || "", path).replace(/[\\]/g, "/");
const dir = path.split("/").slice(0, -1).join("/");
fs.mkdirSync(dir, { recursive: true });
return fs.writeFileSync(path, value, { encoding: "binary" });
return fs.writeFileSync(getPath(path), value, { encoding: "binary" });
}
async delete(path: string) {