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1"use strict";

3const fs = require("node:fs");

4const path = require("node:path");

6function resolvedCacheRoot(rootDir) {

7 const raw = String(rootDir || "").trim();

8 if (!raw) throw new Error("Download cache root is required.");

9 const resolved = path.resolve(raw);

10 if (resolved === path.parse(resolved).root) throw new Error("Refusing to use a filesystem root as a download cache.");

11 return resolved;

12}

14function cleanDownloadCache(rootDir) {

15 const root = resolvedCacheRoot(rootDir);

16 const existed = fs.existsSync(root);

17 fs.rmSync(root, { recursive: true, force: true });

18 fs.mkdirSync(root, { recursive: true, mode: 0o700 });

19 return { cleaned: existed, root };

20}

22function removeCachedFile(rootDir, filePath) {

23 const root = resolvedCacheRoot(rootDir);

24 const target = path.resolve(String(filePath || ""));

25 const relative = path.relative(root, target);

26 if (!relative || relative.startsWith("..") || path.isAbsolute(relative)) {

27 throw new Error("Downloaded package path is outside its cache.");

28 }

29 if (!fs.existsSync(target)) return { removed: false, path: target };

30 if (!fs.lstatSync(target).isFile()) throw new Error("Downloaded package is not a regular file.");

31 const realRoot = fs.realpathSync(root);

32 const realTarget = fs.realpathSync(target);

33 const realRelative = path.relative(realRoot, realTarget);

34 if (!realRelative || realRelative.startsWith("..") || path.isAbsolute(realRelative)) {

35 throw new Error("Downloaded package resolves outside its cache.");

36 }

37 fs.unlinkSync(target);

39 let current = path.dirname(target);

40 while (current !== root) {

41 try { fs.rmdirSync(current); }

42 catch (error) {

43 if (error?.code === "ENOTEMPTY" || error?.code === "EEXIST" || error?.code === "ENOENT") break;

44 throw error;

45 }

46 current = path.dirname(current);

47 }

48 return { removed: true, path: target };

49}

51module.exports = { cleanDownloadCache, removeCachedFile, resolvedCacheRoot };

SHA-256: a8d7b86d725cd6d52e5937995e869b1cedadde09458c52442b2eb91009aaccb8

SHA-256 des Archivs: 5ac91caf4fa32a6fdb114f2430deed486fbe7489d5eea343d1f034169fafb5e0