gstack/test/learnings-injection.test.ts

63 lines
2.9 KiB
TypeScript

import { describe, test, expect } from "bun:test";
import { readFileSync } from "fs";
import path from "path";
const SCRIPT = path.join(import.meta.dir, "..", "bin", "gstack-learnings-search");
describe("gstack-learnings-search injection prevention", () => {
const script = readFileSync(SCRIPT, "utf-8");
test("no shell interpolation inside bun -e string", () => {
// Extract the bun -e block (everything between `bun -e "` and the closing `"`)
const bunBlock = script.slice(script.indexOf('bun -e "'));
// Should NOT contain ${VAR} patterns (shell interpolation)
// These are RCE vectors: a malicious learnings entry with '; rm -rf / ;' in the
// query field would execute arbitrary commands via shell interpolation.
const shellInterpolations = bunBlock.match(/'\$\{[A-Z_]+\}'/g) || [];
const bareInterpolations = bunBlock.match(/\$\{[A-Z_]+\}/g) || [];
// Filter out any that are inside process.env references (those are safe)
const unsafeInterpolations = [
...shellInterpolations,
...bareInterpolations,
].filter((m) => !m.includes("process.env"));
expect(unsafeInterpolations).toEqual([]);
});
test("uses process.env for all user-controlled values", () => {
const bunBlock = script.slice(script.indexOf('bun -e "'));
// Must use process.env for TYPE, QUERY, LIMIT.
// SLUG and CROSS are no longer threaded as env vars inside the bun
// block since PR #1619 — current vs cross-project rows are now
// distinguished by inline tags in the piped input (`current\t<line>`
// vs `cross\t<line>`), removing the need for env-var filters inside
// the bun block. CROSS is still set on the bash command line (it
// controls whether the cross-project find runs at all), but the bun
// block reads the tag, not the env var.
expect(bunBlock).toContain("process.env.GSTACK_SEARCH_TYPE");
expect(bunBlock).toContain("process.env.GSTACK_SEARCH_QUERY");
expect(bunBlock).toContain("process.env.GSTACK_SEARCH_LIMIT");
});
test("env vars are set on the bun command line", () => {
// The env vars must be passed to bun, not just set in the shell.
// SLUG removed by PR #1619 — see above.
expect(script).toContain("GSTACK_SEARCH_TYPE=");
expect(script).toContain("GSTACK_SEARCH_QUERY=");
expect(script).toContain("GSTACK_SEARCH_LIMIT=");
expect(script).toContain("GSTACK_SEARCH_CROSS=");
});
test("current vs cross-project rows distinguished by inline tags, not SLUG env (#1619)", () => {
const bunBlock = script.slice(script.indexOf('bun -e "'));
// The bun block must inspect the per-line tag to mark cross-project rows.
// The current shape emits `current\t<json>` or `cross\t<json>` from the
// upstream pipe (via emit_tagged_file). Inside the bun block, the script
// parses out the leading tag and sets a per-entry flag.
expect(bunBlock).toMatch(/sourceTag|tabIndex|crossProject/);
});
});