Files
everything-claude-code/scripts/hooks/insaits-security-wrapper.js
Nomadu27 68fc85ea49 fix: address cubic-dev-ai + coderabbit round 3 review
cubic-dev-ai P2: dev_mode now defaults to "false" (strict mode).
Users opt in to dev mode by setting INSAITS_DEV_MODE=true.

cubic-dev-ai P2: Move null-status check above stdout/stderr writes
in wrapper so partial/corrupt output is never leaked. Pass through
original raw input on signal kill, matching the result.error path.

coderabbit major: Wrap insAItsMonitor() and send_message() in
try/except so SDK errors don't crash the hook. Logs warning and
exits 0 (fail-open) on exception.

coderabbit nitpick: write_audit now creates a new dict (enriched)
instead of mutating the caller's event dict.

coderabbit nitpick: Extract magic numbers to named constants:
MIN_CONTENT_LENGTH=10, MAX_SCAN_LENGTH=4000, DEFAULT_MODEL.

Also: added env var documentation to module docstring.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-10 18:25:23 +01:00

80 lines
2.5 KiB
JavaScript

#!/usr/bin/env node
/**
* InsAIts Security Monitor — wrapper for run-with-flags compatibility.
*
* This thin wrapper receives stdin from the hooks infrastructure and
* delegates to the Python-based insaits-security-monitor.py script.
*
* The wrapper exists because run-with-flags.js spawns child scripts
* via `node`, so a JS entry point is needed to bridge to Python.
*/
'use strict';
const path = require('path');
const { spawnSync } = require('child_process');
const MAX_STDIN = 1024 * 1024;
let raw = '';
process.stdin.setEncoding('utf8');
process.stdin.on('data', chunk => {
if (raw.length < MAX_STDIN) {
raw += chunk.substring(0, MAX_STDIN - raw.length);
}
});
process.stdin.on('end', () => {
const scriptDir = __dirname;
const pyScript = path.join(scriptDir, 'insaits-security-monitor.py');
// Try python3 first (macOS/Linux), fall back to python (Windows)
const pythonCandidates = ['python3', 'python'];
let result;
for (const pythonBin of pythonCandidates) {
result = spawnSync(pythonBin, [pyScript], {
input: raw,
encoding: 'utf8',
env: process.env,
cwd: process.cwd(),
timeout: 14000,
});
// ENOENT means binary not found — try next candidate
if (result.error && result.error.code === 'ENOENT') {
continue;
}
break;
}
if (!result || (result.error && result.error.code === 'ENOENT')) {
process.stderr.write('[InsAIts] python3/python not found. Install Python 3.9+ and: pip install insa-its\n');
process.stdout.write(raw);
process.exit(0);
}
// Log non-ENOENT spawn errors (timeout, signal kill, etc.) so users
// know the security monitor did not run — fail-open with a warning.
if (result.error) {
process.stderr.write(`[InsAIts] Security monitor failed to run: ${result.error.message}\n`);
process.stdout.write(raw);
process.exit(0);
}
// result.status is null when the process was killed by a signal or
// timed out. Check BEFORE writing stdout to avoid leaking partial
// or corrupt monitor output. Pass through original raw input instead.
if (!Number.isInteger(result.status)) {
const signal = result.signal || 'unknown';
process.stderr.write(`[InsAIts] Security monitor killed (signal: ${signal}). Tool execution continues.\n`);
process.stdout.write(raw);
process.exit(0);
}
if (result.stdout) process.stdout.write(result.stdout);
if (result.stderr) process.stderr.write(result.stderr);
process.exit(result.status);
});