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Garry TanandClaude Fable 5.1
17733302cc
check-freeze.sh resolved its state dir as ${CLAUDE_PLUGIN_DATA:-$HOME/.gstack}
while every writer (/freeze, /guard, /unfreeze, /investigate) resolves through
bin/gstack-paths, GSTACK_HOME first. With GSTACK_HOME set, /freeze wrote
freeze-dir.txt under GSTACK_HOME, the hook read $HOME/.gstack, found no file,
and allowed everything — a deny-tier boundary failing open.
One resolver now: gstack_hook_state_root() in careful/bin/hook-extract.sh
(already sourced by both check-freeze.sh and check-careful.sh) implements the
exact gstack-paths chain, including the CLAUDE_PLUGIN_ROOT guard that keeps a
CLAUDE_PLUGIN_DATA leaked from another plugin from redirecting our state.
check-freeze.sh and gstack_hook_log_fire both call it; nothing spawns
gstack-paths from a hook.
Tests: the GSTACK_HOME deny regression, GSTACK_HOME-over-CLAUDE_PLUGIN_DATA
precedence, plugin-root guard both ways, and a byte-parity check against
bin/gstack-paths across six env combinations. Existing freeze tests now pass
CLAUDE_PLUGIN_ROOT like a real plugin install would.
Idea from PR #1509 (@NikhileshNanduri); implemented natively against the shared
resolver rather than a second fallback chain.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
1007 lines
46 KiB
TypeScript
1007 lines
46 KiB
TypeScript
import { describe, test, expect } from 'bun:test';
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import { spawnSync } from 'child_process';
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import * as path from 'path';
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import * as fs from 'fs';
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import * as os from 'os';
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import { gitArgvIn } from './helpers/scratch-repo';
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const ROOT = path.resolve(import.meta.dir, '..');
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const CAREFUL_SCRIPT = path.join(ROOT, 'careful', 'bin', 'check-careful.sh');
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const FREEZE_SCRIPT = path.join(ROOT, 'freeze', 'bin', 'check-freeze.sh');
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function runHook(scriptPath: string, input: object, env?: Record<string, string>, cwd?: string): { exitCode: number; output: any; raw: string } {
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const result = spawnSync('bash', [scriptPath], {
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input: JSON.stringify(input),
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stdio: ['pipe', 'pipe', 'pipe'],
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env: { ...process.env, ...env },
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cwd,
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timeout: 5000,
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});
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const raw = result.stdout.toString().trim();
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let output: any = {};
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try {
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output = JSON.parse(raw);
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} catch {}
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return { exitCode: result.status ?? 1, output, raw };
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}
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// Scratch git repo with a resolvable origin default branch — the HIGH-tier
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// force-push check reads `git symbolic-ref refs/remotes/origin/HEAD` from the
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// hook's cwd, and Conductor worktrees don't reliably carry that ref.
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function withGitRepo(defaultBranch: string, currentBranch: string, fn: (repoDir: string) => void) {
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const repoDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-careful-git-'));
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try {
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const git = (args: string[]) => gitArgvIn(repoDir, args);
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git(['init', '-q', '-b', defaultBranch]);
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git(['commit', '--allow-empty', '-q', '-m', 'init']);
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// A symbolic ref may dangle; the hook only reads its NAME.
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git(['symbolic-ref', 'refs/remotes/origin/HEAD', `refs/remotes/origin/${defaultBranch}`]);
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if (currentBranch !== defaultBranch) git(['checkout', '-q', '-b', currentBranch]);
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fn(repoDir);
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} finally {
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fs.rmSync(repoDir, { recursive: true, force: true });
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}
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}
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function runHookRaw(scriptPath: string, rawInput: string, env?: Record<string, string>): { exitCode: number; output: any; raw: string } {
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const result = spawnSync('bash', [scriptPath], {
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input: rawInput,
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stdio: ['pipe', 'pipe', 'pipe'],
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env: { ...process.env, ...env },
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timeout: 5000,
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});
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const raw = result.stdout.toString().trim();
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let output: any = {};
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try {
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output = JSON.parse(raw);
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} catch {}
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return { exitCode: result.status ?? 1, output, raw };
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}
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function carefulInput(command: string) {
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return { tool_input: { command } };
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}
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function freezeInput(filePath: string) {
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return { tool_input: { file_path: filePath } };
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}
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function withFreezeDir(freezePath: string, fn: (stateDir: string) => void) {
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const stateDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-freeze-test-'));
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fs.writeFileSync(path.join(stateDir, 'freeze-dir.txt'), freezePath);
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try {
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fn(stateDir);
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} finally {
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fs.rmSync(stateDir, { recursive: true, force: true });
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}
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}
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// The freeze WRITER resolves its state root through bin/gstack-paths, which
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// trusts CLAUDE_PLUGIN_DATA only when CLAUDE_PLUGIN_ROOT names gstack; the
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// reader mirrors that exact chain (#1459 / #1509). A test standing in for a
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// plugin install must supply both, and must neutralize a GSTACK_HOME inherited
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// from the shard's process.env (an empty value reads as unset in ${VAR:-}).
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function freezeEnv(stateDir: string, extra: Record<string, string> = {}): Record<string, string> {
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return { GSTACK_HOME: '', CLAUDE_PLUGIN_DATA: stateDir, CLAUDE_PLUGIN_ROOT: '/plugins/gstack', ...extra };
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}
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const HOOK_EXTRACT = path.join(ROOT, 'careful', 'bin', 'hook-extract.sh');
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const GSTACK_PATHS = path.join(ROOT, 'bin', 'gstack-paths');
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/** What the hook helper resolves as the state root under a given env. */
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function hookStateRoot(env: Record<string, string>): string {
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const r = spawnSync('bash', ['-c', `. "${HOOK_EXTRACT}" && gstack_hook_state_root`], {
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env: { PATH: process.env.PATH ?? '', ...env }, encoding: 'utf-8', timeout: 5000,
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});
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return r.stdout.trim();
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}
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/** What bin/gstack-paths resolves as GSTACK_STATE_ROOT under the same env. */
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function pathsStateRoot(env: Record<string, string>): string {
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const r = spawnSync('bash', ['-c', `eval "$("${GSTACK_PATHS}")" && printf '%s' "$GSTACK_STATE_ROOT"`], {
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env: { PATH: process.env.PATH ?? '', ...env }, encoding: 'utf-8', timeout: 5000,
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});
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return r.stdout.trim();
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}
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// ============================================================
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// Frontmatter hook wiring (#2469 / #1871)
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// ============================================================
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// Frontmatter hooks run before any runtime variable exists, so a
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// ${CLAUDE_SKILL_DIR}-relative command silently never resolves and the guard
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// never fires. Every command: line must anchor on $HOME like careful/freeze.
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describe('frontmatter hook command paths', () => {
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test.each(['investigate/SKILL.md', 'careful/SKILL.md', 'freeze/SKILL.md', 'guard/SKILL.md'])(
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'%s hook commands are $HOME-anchored, never CLAUDE_SKILL_DIR',
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(rel) => {
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const content = fs.readFileSync(path.join(ROOT, rel), 'utf-8');
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const commandLines = content.split('\n').filter((l) => l.trim().startsWith('command:'));
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expect(commandLines.length).toBeGreaterThan(0);
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for (const line of commandLines) {
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expect(line).not.toContain('CLAUDE_SKILL_DIR');
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expect(line).toContain('$HOME/.claude/skills/gstack/');
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}
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},
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);
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});
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// ============================================================
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// check-careful.sh tests
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// ============================================================
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describe('check-careful.sh', () => {
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// --- Destructive rm commands ---
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describe('rm -rf / rm -r', () => {
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test('rm -rf /var/data warns with recursive delete message', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf /var/data'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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test('rm -r ./some-dir warns', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -r ./some-dir'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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test('rm -rf node_modules allows (safe exception)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf node_modules'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
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});
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test('rm -rf .next dist allows (multiple safe targets)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf .next dist'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
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});
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test('rm -rf node_modules /var/data warns (mixed safe+unsafe)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf node_modules /var/data'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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// The safe exception matches the COMPLETE command against an anchored
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// whitelist shape — anything else (chains, comments, substitution) falls
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// through to the destructive-pattern warning.
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test('rm -rf /; rm -rf node_modules warns (semicolon chain, dangerous first)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf /; rm -rf node_modules'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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test('rm -rf /etc/data && rm -rf dist warns (&& chain, dangerous first)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf /etc/data && rm -rf dist'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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test('rm -rf node_modules; rm -rf /home/user/data warns (safe first, dangerous last)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf node_modules; rm -rf /home/user/data'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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// Command substitution can end in a whitelisted suffix while running
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// anything inside $(...) or backticks — the whitelist's target tokens
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// exclude `(` and backtick so these cannot ride the safe exception.
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test('rm -rf $(./wipe-all)/node_modules warns (command substitution)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf $(./wipe-all)/node_modules'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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test('rm -rf `./wipe-all`/node_modules warns (backtick substitution)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf `./wipe-all`/node_modules'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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// Capital -R is the documented recursive flag on BSD rm (macOS) and accepted
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// by GNU rm. Both greps previously required a lowercase r, so `rm -R /`
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// silently allowed. A bare recursive delete of / is now HIGH-tier: denied,
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// not asked.
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test('rm -R / denies (HIGH tier: recursive delete of root)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -R /'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('HIGH');
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});
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test('rm -fR /home/user warns (capital R in flag cluster)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -fR /home/user'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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test('rm -Rf node_modules allows (capital R, single safe target)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -Rf node_modules'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
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});
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// The old grep extractor stopped at the first escaped quote in the JSON
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// string, so any quoted argument truncated the command BEFORE the pattern
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// checks ran — hiding everything after it. (#2426)
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test.each([
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'git commit -m "wip" && rm -rf /',
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'bash -c "rm -rf /"',
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'echo "x"; rm -rf ~',
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'npm run build --msg "done" && rm -rf /',
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])('a quoted argument cannot hide a later destructive command: %s', (command) => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(command));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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// JSON-escaped newline (literal two-char \n surviving the grep extraction
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// path) breaks the anchored whitelist shape → falls through to the warn.
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test('newline-chained rm warns (escaped-newline separator branch)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf /etc/x\nrm -rf node_modules'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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// Deliberate false positive, pinned: a safe-prefix chain ending in a safe rm
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// is indistinguishable from the dangerous-first exploit shape without real
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// shell parsing, so warn-on-all-chains is the designed fail-closed direction.
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// A future per-segment parser must consciously change this test.
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test('cd app && rm -rf node_modules asks (fail-closed on chains, by design)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('cd app && rm -rf node_modules'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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test.each([
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'rm -rf /; rm -rf node_modules',
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'rm -rf / && rm -rf node_modules',
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'rm -rf / # rm -rf node_modules',
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'rm -rf node_modules; rm -rf /',
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'rm -rf node_modules || rm -rf /',
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'echo ok && rm -rf /',
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'rm -rf node_modules\nrm -rf /',
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])('never lets a safe-looking target hide a destructive command: %s', (command) => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(command));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
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});
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});
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// --- Shell obfuscation ---
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describe('shell obfuscation', () => {
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test.each([
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'rm${IFS}-rf${IFS}/',
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'rm$IFS-rf$IFS/',
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'echo cm0gLXJmIC8= | base64 -d | sh',
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])('asks when the command hides its shape behind expansion: %s', (command) => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(command));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('obfuscation');
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});
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test('ordinary commands are unaffected', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('cat file.b64 | base64 -d > out.bin'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
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});
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});
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// --- JSON payload extraction ---
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describe('command extraction', () => {
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test('fails closed when the payload is not valid JSON', () => {
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const { exitCode, output } = runHookRaw(CAREFUL_SCRIPT, 'this is not json');
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('parse');
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});
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test('allows a well-formed payload with no command field', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, { tool_input: { file_path: '/tmp/x' } });
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
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});
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test('allows when command is present but not a string', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, { tool_input: { command: 42 } });
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
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});
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test('preserves escaped quotes in the extracted command', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('echo "hello world"'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
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});
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});
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// --- SQL destructive commands ---
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// Embedded double quotes are now safe to use here. They previously truncated the
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// extracted command (the grep-based extractor stopped at the first \"), which hid
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// the SQL keyword from the pattern matcher — so the older tests had to be written
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// without quotes, in a shape no one actually types. The JSON-parser extraction
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// fixed that, and the quoted forms below are the realistic ones.
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describe('SQL destructive commands', () => {
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test('psql DROP TABLE warns with DROP in message', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('psql -c DROP TABLE users;'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('DROP');
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});
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test.each([
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'psql -c "DROP TABLE users"',
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'psql -c "TRUNCATE orders"',
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'mysql -e "DROP DATABASE prod"',
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])('a quoted SQL statement is still inspected: %s', (command) => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(command));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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});
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test('mysql drop database warns (case insensitive)', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('mysql -e drop database mydb'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason.toLowerCase()).toContain('drop');
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});
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test('psql TRUNCATE warns', () => {
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const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('psql -c TRUNCATE orders;'));
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expect(exitCode).toBe(0);
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expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
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expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('TRUNCATE');
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});
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});
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// --- Git destructive commands ---
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describe('git destructive commands', () => {
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// Force-push to a NON-default branch is MEDIUM (ask). Force-push to the
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// default branch is HIGH (deny) — covered in the HIGH tier describe. The
|
|
// fixture repo pins the default branch so the split is deterministic
|
|
// regardless of the host repo's origin/HEAD.
|
|
test('git push --force warns with force-push (non-default target)', () => {
|
|
withGitRepo('trunk', 'trunk', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push --force origin main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('force-push');
|
|
});
|
|
});
|
|
|
|
test('git push -f warns (non-default target)', () => {
|
|
withGitRepo('trunk', 'trunk', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push -f origin main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('force-push');
|
|
});
|
|
});
|
|
|
|
test('git reset --hard warns with uncommitted', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git reset --hard HEAD~3'));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('uncommitted');
|
|
});
|
|
|
|
test('git checkout . warns', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git checkout .'));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('uncommitted');
|
|
});
|
|
|
|
test('git restore . warns', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git restore .'));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('uncommitted');
|
|
});
|
|
});
|
|
|
|
// --- Container / infra destructive commands ---
|
|
|
|
describe('container and infra commands', () => {
|
|
test('kubectl delete warns with kubectl in message', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('kubectl delete pod my-pod'));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('kubectl');
|
|
});
|
|
|
|
test('docker rm -f warns', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('docker rm -f container123'));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('Docker');
|
|
});
|
|
|
|
test('docker system prune -a warns', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('docker system prune -a'));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('Docker');
|
|
});
|
|
});
|
|
|
|
// --- Safe commands ---
|
|
|
|
describe('safe commands allow without warning', () => {
|
|
const safeCmds = [
|
|
'ls -la',
|
|
'git status',
|
|
'npm install',
|
|
'cat README.md',
|
|
'echo hello',
|
|
];
|
|
|
|
for (const cmd of safeCmds) {
|
|
test(`"${cmd}" allows`, () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(cmd));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
}
|
|
});
|
|
|
|
// --- Edge cases ---
|
|
|
|
describe('edge cases', () => {
|
|
test('empty command allows gracefully', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(''));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
|
|
test('missing command field allows gracefully', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, { tool_input: {} });
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
|
|
test('malformed JSON input fails CLOSED (asks instead of allowing)', () => {
|
|
// Pre-#2426 this allowed (`{}`) — a hook that gates destructive commands
|
|
// must not allow-by-default on input it cannot read.
|
|
const { exitCode, output } = runHookRaw(CAREFUL_SCRIPT, 'this is not json at all{{{{');
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('parse');
|
|
});
|
|
|
|
test('Python fallback: grep fails on multiline JSON, Python parses it', () => {
|
|
// Construct JSON where "command": and the value are on separate lines.
|
|
// grep works line-by-line, so it cannot match "command"..."value" across lines.
|
|
// This forces CMD to be empty, triggering the Python fallback which handles
|
|
// the full JSON correctly.
|
|
const rawJson = '{"tool_input":{"command":\n"rm -rf /tmp/important"}}';
|
|
const { exitCode, output } = runHookRaw(CAREFUL_SCRIPT, rawJson);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
|
|
});
|
|
});
|
|
|
|
// --- HIGH tier (hard deny) ---
|
|
// A tiny set of catastrophic SIMPLE commands is denied outright while
|
|
// /careful is active. Best-effort advisory hard-stop, not a policy boundary:
|
|
// compound commands always fall through to the MEDIUM ask.
|
|
|
|
describe('HIGH tier (hard deny)', () => {
|
|
test.each(['rm -rf /', 'rm -rf ~', 'rm -rf $HOME', 'sudo rm -rf /', 'rm -Rf ~/'])(
|
|
'denies catastrophic recursive delete: %s',
|
|
(command) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(command));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('HIGH');
|
|
},
|
|
);
|
|
|
|
test('rm -rf ~/subdir stays MEDIUM ask (not the whole home dir)', () => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf ~/subdir'));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
});
|
|
|
|
test('git push --force origin <default branch> denies', () => {
|
|
withGitRepo('main', 'feature', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push --force origin main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('default branch');
|
|
});
|
|
});
|
|
|
|
test('bare git push --force while ON the default branch denies', () => {
|
|
withGitRepo('main', 'main', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push --force'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('HIGH');
|
|
});
|
|
});
|
|
|
|
test('bare git push --force on a feature branch asks (MEDIUM)', () => {
|
|
withGitRepo('main', 'feature', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push --force'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('force-push');
|
|
});
|
|
});
|
|
|
|
test('git push -f origin feature asks (MEDIUM — not the default branch)', () => {
|
|
withGitRepo('main', 'main', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push -f origin feature'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('force-push');
|
|
});
|
|
});
|
|
|
|
test('compound force-push falls through to ask, never deny (cannot resolve cwd)', () => {
|
|
withGitRepo('main', 'main', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('cd elsewhere && git push --force origin main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
});
|
|
});
|
|
|
|
test.each(['rm -rf --no-preserve-root /', 'rm -rf / --no-preserve-root', 'rm -rf /*'])(
|
|
'denies catastrophic rm variant: %s',
|
|
(command) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(command));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('HIGH');
|
|
},
|
|
);
|
|
|
|
test('plus-refspec force to the default branch denies (git push origin +main)', () => {
|
|
withGitRepo('main', 'feature', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push origin +main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('HIGH');
|
|
});
|
|
});
|
|
|
|
test('refspec-form force to the default branch denies (git push -f origin HEAD:main)', () => {
|
|
withGitRepo('main', 'feature', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push -f origin HEAD:main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
});
|
|
|
|
test('plus-refspec force to a FEATURE branch asks (MEDIUM, not silent allow)', () => {
|
|
withGitRepo('main', 'main', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push origin +feature'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('force-push');
|
|
});
|
|
});
|
|
|
|
test('slashed default branch is matched whole (git push -f origin release/2.0)', () => {
|
|
withGitRepo('release/2.0', 'feature', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push -f origin release/2.0'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('release/2.0');
|
|
});
|
|
});
|
|
|
|
test.each(['rm -rf "/"', "rm -rf '~'", 'rm -rf //'])('quoted root targets still deny: %s', (command) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput(command));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
|
|
test('quoted default-branch ref still denies (git push -f origin "main")', () => {
|
|
withGitRepo('main', 'feature', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push -f origin "main"'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
});
|
|
|
|
test('missing origin/HEAD symbolic ref falls back to origin/main probe (Conductor worktrees)', () => {
|
|
const repoDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-careful-nohead-'));
|
|
try {
|
|
const git = (args: string[]) => gitArgvIn(repoDir, args);
|
|
git(['init', '-q', '-b', 'main']);
|
|
git(['commit', '--allow-empty', '-q', '-m', 'init']);
|
|
// No symbolic-ref — only a plain remote-tracking ref, like a Conductor worktree.
|
|
git(['update-ref', 'refs/remotes/origin/main', 'HEAD']);
|
|
git(['checkout', '-q', '-b', 'feature']);
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push --force origin main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
} finally {
|
|
fs.rmSync(repoDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
test('--force-with-lease is never HIGH (the safe force variant)', () => {
|
|
withGitRepo('main', 'main', (repoDir) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('git push --force-with-lease origin main'), undefined, repoDir);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).not.toBe('deny');
|
|
});
|
|
});
|
|
});
|
|
|
|
// --- Additive project patterns ---
|
|
// Config can only ADD warn rules. The files are consulted after the baseline
|
|
// families, so no file content can suppress a baseline match.
|
|
|
|
describe('additive project patterns', () => {
|
|
function withPatternFile(content: string, fn: (gstackHome: string) => void) {
|
|
const gstackHome = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-careful-pat-'));
|
|
fs.writeFileSync(path.join(gstackHome, 'careful-patterns.txt'), content);
|
|
try {
|
|
fn(gstackHome);
|
|
} finally {
|
|
fs.rmSync(gstackHome, { recursive: true, force: true });
|
|
}
|
|
}
|
|
|
|
test('a project pattern adds an ask rule', () => {
|
|
withPatternFile('# infra safety\nterraform\\s+destroy\n', (gstackHome) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('terraform destroy -auto-approve'), { GSTACK_HOME: gstackHome });
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('Project rule');
|
|
});
|
|
});
|
|
|
|
test('a garbage pattern file cannot suppress a baseline match (additive invariant)', () => {
|
|
withPatternFile('# override: allow everything\nallow-everything\nignore baseline\n', (gstackHome) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('rm -rf /var/data'), { GSTACK_HOME: gstackHome });
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('recursive delete');
|
|
});
|
|
});
|
|
|
|
test('an invalid regex line is skipped without breaking the hook', () => {
|
|
withPatternFile('([unclosed\nterraform\\s+destroy\n', (gstackHome) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('terraform destroy'), { GSTACK_HOME: gstackHome });
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('ask');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('Project rule');
|
|
});
|
|
});
|
|
|
|
test('safe commands still allow with a pattern file present', () => {
|
|
withPatternFile('terraform\\s+destroy\n', (gstackHome) => {
|
|
const { exitCode, output } = runHook(CAREFUL_SCRIPT, carefulInput('ls -la'), { GSTACK_HOME: gstackHome });
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
// ============================================================
|
|
// check-freeze.sh tests
|
|
// ============================================================
|
|
describe('check-freeze.sh', () => {
|
|
|
|
describe('edits inside freeze boundary', () => {
|
|
test('edit inside freeze boundary allows', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/Users/dev/project/src/index.ts'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
});
|
|
|
|
test('edit in subdirectory of freeze path allows', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/Users/dev/project/src/components/Button.tsx'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('edits outside freeze boundary', () => {
|
|
test('edit outside freeze boundary denies', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/Users/dev/other-project/index.ts'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('freeze');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('outside');
|
|
});
|
|
});
|
|
|
|
test('write outside freeze boundary denies', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/etc/hosts'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('freeze');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('outside');
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('trailing slash prevents prefix confusion', () => {
|
|
test('freeze at /src/ denies /src-old/ (trailing slash prevents prefix match)', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/Users/dev/project/src-old/index.ts'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('outside');
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('no freeze file exists', () => {
|
|
test('allows everything when no freeze file present', () => {
|
|
const stateDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-freeze-test-'));
|
|
try {
|
|
const { exitCode, output } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/anywhere/at/all.ts'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
} finally {
|
|
fs.rmSync(stateDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
});
|
|
|
|
describe('edge cases', () => {
|
|
test('missing file_path field allows gracefully', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHook(
|
|
FREEZE_SCRIPT,
|
|
{ tool_input: {} },
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
});
|
|
|
|
test('malformed JSON payload DENIES (fail closed — freeze is a deny-tier hook)', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHookRaw(
|
|
FREEZE_SCRIPT,
|
|
'not json at all {{{{',
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('fail closed');
|
|
});
|
|
});
|
|
|
|
test('a quote-bearing path outside the boundary emits PARSEABLE deny JSON', () => {
|
|
// The old printf-interpolated deny emitted malformed JSON for paths
|
|
// containing quotes — Claude Code silently ignored the whole decision,
|
|
// so the deny no-oped exactly when the path was hostile.
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output, raw } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/tmp/evil"quoted/x.ts'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(() => JSON.parse(raw)).not.toThrow();
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
});
|
|
|
|
test('a newline-bearing path outside the boundary emits PARSEABLE deny JSON', () => {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output, raw } = runHook(
|
|
FREEZE_SCRIPT,
|
|
freezeInput('/tmp/evil\npath.ts'),
|
|
freezeEnv(stateDir),
|
|
);
|
|
expect(exitCode).toBe(0);
|
|
expect(() => JSON.parse(raw)).not.toThrow();
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('space-bearing freeze boundary', () => {
|
|
// The old `tr -d '[:space:]'` stripped INTERNAL spaces from the freeze
|
|
// path, so a boundary like ".../My Project/src" never matched anything.
|
|
test('a boundary containing spaces allows edits inside it', () => {
|
|
const base = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-freeze-space-'));
|
|
const boundary = path.join(base, 'My Project', 'src');
|
|
fs.mkdirSync(boundary, { recursive: true });
|
|
try {
|
|
withFreezeDir(boundary + '/', (stateDir) => {
|
|
const inside = runHook(FREEZE_SCRIPT, freezeInput(path.join(boundary, 'index.ts')), freezeEnv(stateDir));
|
|
expect(inside.exitCode).toBe(0);
|
|
expect(inside.output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
|
|
const outside = runHook(FREEZE_SCRIPT, freezeInput(path.join(base, 'elsewhere.ts')), freezeEnv(stateDir));
|
|
expect(outside.exitCode).toBe(0);
|
|
expect(outside.output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
} finally {
|
|
fs.rmSync(base, { recursive: true, force: true });
|
|
}
|
|
});
|
|
});
|
|
|
|
describe('broken install fails closed', () => {
|
|
test('a missing hook-extract helper DENIES instead of proceeding', () => {
|
|
// Copy the freeze hook into a tree with NO careful sibling — the source
|
|
// fails, and a deny-tier boundary must fail CLOSED, not fall through.
|
|
const base = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-freeze-broken-'));
|
|
const binDir = path.join(base, 'freeze', 'bin');
|
|
fs.mkdirSync(binDir, { recursive: true });
|
|
const script = path.join(binDir, 'check-freeze.sh');
|
|
fs.copyFileSync(FREEZE_SCRIPT, script);
|
|
try {
|
|
withFreezeDir('/Users/dev/project/src/', (stateDir) => {
|
|
const { exitCode, output } = runHook(script, freezeInput('/Users/dev/project/src/x.ts'), freezeEnv(stateDir));
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
expect(output.hookSpecificOutput?.permissionDecisionReason).toContain('fail closed');
|
|
});
|
|
} finally {
|
|
fs.rmSync(base, { recursive: true, force: true });
|
|
}
|
|
});
|
|
});
|
|
|
|
describe('symlink boundary escape', () => {
|
|
// The old resolver followed the parent directory but NOT the final path
|
|
// component, so an in-boundary symlink pointing outside the boundary was
|
|
// allowed while the write landed outside.
|
|
test('an in-boundary symlink to an outside target denies', () => {
|
|
const base = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-freeze-link-'));
|
|
const boundary = path.join(base, 'boundary');
|
|
const outside = path.join(base, 'outside');
|
|
fs.mkdirSync(boundary, { recursive: true });
|
|
fs.mkdirSync(outside, { recursive: true });
|
|
fs.writeFileSync(path.join(outside, 'secret.txt'), 'x');
|
|
fs.symlinkSync(path.join(outside, 'secret.txt'), path.join(boundary, 'link.txt'));
|
|
try {
|
|
withFreezeDir(boundary + '/', (stateDir) => {
|
|
const viaLink = runHook(FREEZE_SCRIPT, freezeInput(path.join(boundary, 'link.txt')), freezeEnv(stateDir));
|
|
expect(viaLink.exitCode).toBe(0);
|
|
expect(viaLink.output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
|
|
// A real in-boundary file is unaffected.
|
|
fs.writeFileSync(path.join(boundary, 'real.txt'), 'y');
|
|
const real = runHook(FREEZE_SCRIPT, freezeInput(path.join(boundary, 'real.txt')), freezeEnv(stateDir));
|
|
expect(real.exitCode).toBe(0);
|
|
expect(real.output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
} finally {
|
|
fs.rmSync(base, { recursive: true, force: true });
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
// ============================================================
|
|
// check-freeze.sh state-root resolution (#1459 / #1509)
|
|
// ============================================================
|
|
// /freeze writes freeze-dir.txt under the root gstack-paths resolves
|
|
// (GSTACK_HOME first). The reader used to read ${CLAUDE_PLUGIN_DATA:-$HOME/.gstack}
|
|
// — so with GSTACK_HOME set it found no file and ALLOWED everything. A deny-tier
|
|
// boundary that fails open is not a boundary; writer and reader now share one
|
|
// chain (gstack_hook_state_root in careful/bin/hook-extract.sh).
|
|
describe('check-freeze.sh state-root resolution (#1459 / #1509)', () => {
|
|
const BOUNDARY = '/Users/dev/project/src/';
|
|
const OUTSIDE = '/Users/dev/other-project/index.ts';
|
|
|
|
function withEmptyDir(fn: (dir: string) => void) {
|
|
const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-freeze-empty-'));
|
|
try { fn(dir); } finally { fs.rmSync(dir, { recursive: true, force: true }); }
|
|
}
|
|
|
|
test('REGRESSION: freeze file under GSTACK_HOME (HOME has none) denies an outside edit', () => {
|
|
withFreezeDir(BOUNDARY, (gstackHome) => {
|
|
withEmptyDir((fakeHome) => {
|
|
const { exitCode, output } = runHook(FREEZE_SCRIPT, freezeInput(OUTSIDE), {
|
|
GSTACK_HOME: gstackHome, HOME: fakeHome, CLAUDE_PLUGIN_DATA: '', CLAUDE_PLUGIN_ROOT: '',
|
|
});
|
|
expect(exitCode).toBe(0);
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
});
|
|
});
|
|
|
|
test('GSTACK_HOME wins over CLAUDE_PLUGIN_DATA (matches gstack-paths precedence)', () => {
|
|
withFreezeDir(BOUNDARY, (pluginData) => {
|
|
withEmptyDir((gstackHome) => {
|
|
// The freeze file lives under CLAUDE_PLUGIN_DATA, but GSTACK_HOME is set and
|
|
// has none — the writer would have written there, so the reader must look there.
|
|
const { output } = runHook(FREEZE_SCRIPT, freezeInput(OUTSIDE),
|
|
freezeEnv(pluginData, { GSTACK_HOME: gstackHome }));
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
});
|
|
});
|
|
|
|
test('CLAUDE_PLUGIN_DATA is ignored when CLAUDE_PLUGIN_ROOT is another plugin', () => {
|
|
withFreezeDir(BOUNDARY, (pluginData) => {
|
|
withEmptyDir((fakeHome) => {
|
|
const { output } = runHook(FREEZE_SCRIPT, freezeInput(OUTSIDE),
|
|
freezeEnv(pluginData, { CLAUDE_PLUGIN_ROOT: '/plugins/codex', HOME: fakeHome }));
|
|
// Falls through to $HOME/.gstack, which has no freeze file → allow.
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBeUndefined();
|
|
});
|
|
});
|
|
});
|
|
|
|
test('CLAUDE_PLUGIN_DATA is honoured when CLAUDE_PLUGIN_ROOT names gstack', () => {
|
|
withFreezeDir(BOUNDARY, (pluginData) => {
|
|
withEmptyDir((fakeHome) => {
|
|
const { output } = runHook(FREEZE_SCRIPT, freezeInput(OUTSIDE), freezeEnv(pluginData, { HOME: fakeHome }));
|
|
expect(output.hookSpecificOutput?.permissionDecision).toBe('deny');
|
|
});
|
|
});
|
|
});
|
|
|
|
test('gstack_hook_state_root is byte-identical to gstack-paths GSTACK_STATE_ROOT', () => {
|
|
const combos: Record<string, string>[] = [
|
|
{ HOME: '/home/u', GSTACK_HOME: '/state/x', CLAUDE_PLUGIN_DATA: '/plug/data', CLAUDE_PLUGIN_ROOT: '/plugins/gstack' },
|
|
{ HOME: '/home/u', GSTACK_HOME: '', CLAUDE_PLUGIN_DATA: '/plug/data', CLAUDE_PLUGIN_ROOT: '/plugins/gstack' },
|
|
{ HOME: '/home/u', GSTACK_HOME: '', CLAUDE_PLUGIN_DATA: '/plug/data', CLAUDE_PLUGIN_ROOT: '/plugins/codex' },
|
|
{ HOME: '/home/u', GSTACK_HOME: '', CLAUDE_PLUGIN_DATA: '/plug/data', CLAUDE_PLUGIN_ROOT: '' },
|
|
{ HOME: '/home/u', GSTACK_HOME: '', CLAUDE_PLUGIN_DATA: '', CLAUDE_PLUGIN_ROOT: '' },
|
|
{ HOME: '', GSTACK_HOME: '', CLAUDE_PLUGIN_DATA: '', CLAUDE_PLUGIN_ROOT: '' },
|
|
];
|
|
for (const env of combos) {
|
|
expect(hookStateRoot(env)).toBe(pathsStateRoot(env));
|
|
}
|
|
});
|
|
});
|