Multi-Hoster-Upload/lib/support-bundle.js
Administrator d69e5c39bf feat(diagnostics): MCP gateway + harden redaction so no secret ever leaves the box
Adds the connect-by-code side of remote diagnostics and closes two real
secret-leak vectors that an end-to-end gateway<->agent test surfaced.

Gateway (gateway/, local stdio MCP, Claude connects once):
- 14 read-only tools (server_health hub, read_log, list_logs, list_errors,
  get_queue_state, get_history, get_config_redacted, get_system_info,
  get_rotation_state, get_app_events + connect/disconnect/list/current).
- The HOST is always supplied by the operator, never taken from the code.
- TLS fingerprint pinning is enforced in the socket 'open' handler BEFORE the
  token is sent (wss opt-in); plain ws is loopback-only.
- registry.json (holds bearer tokens) is gitignored; only an empty example ships.

Security hardening (gates every off-box payload):
- redactLogText now scrubs opaque bearer/token-family secrets that are NOT
  stored config credentials (e.g. a session token a hoster returns inside an
  error string): bare token/auth_token/refresh_token/session_token + standalone
  "Bearer <opaque>". Benign "token bucket" prose is left intact.
- get_config_redacted deep-redacts every string leaf (JSON-safe, per-leaf, so
  the cookie/sess line patterns can't gobble across a compact-JSON field) and
  drops the history subtree (served by get_history with its own per-error
  redaction). This plugs leaks via globalSettings.pendingQueue[].error etc.

Bind-address safety:
- _safeDiagBindAddress() forces the diagnostic agent to 127.0.0.1/::1; the
  0.0.0.0 UI option is removed. Direct LAN/Internet bind stays disabled until
  encrypted transport (wss) exists — remote access goes through an SSH/VPN
  tunnel to loopback. (Never plaintext ws:// on all interfaces.)

Tests: end-to-end gateway<->agent gate (connect -> server_health/read_log/
get_config_redacted, asserts zero secret leakage, rejects doodstream log, path
traversal and write ops); + redaction regression tests in the main suite.
385 app tests + 9 gateway tests pass; lint 0 errors.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 17:39:31 +02:00

111 lines
4.2 KiB
JavaScript

const fs = require('fs');
const CRED_KEYS = new Set(['password', 'apiKey', 'token', 'cookie', 'sessionId', 'webhookUrl', 'diagToken']);
const REDACTED = '<redacted>';
function sanitizeConfig(config) {
if (!config || typeof config !== 'object') return config;
const clone = JSON.parse(JSON.stringify(config));
(function walk(o) {
if (!o) return;
if (Array.isArray(o)) { for (const e of o) walk(e); return; }
if (typeof o !== 'object') return;
for (const k of Object.keys(o)) {
if (CRED_KEYS.has(k) && typeof o[k] === 'string' && o[k]) o[k] = REDACTED;
else walk(o[k]);
}
})(clone);
return clone;
}
function collectSecretValues(config) {
const out = new Set();
(function walk(o) {
if (!o) return;
if (Array.isArray(o)) { for (const e of o) walk(e); return; }
if (typeof o !== 'object') return;
for (const k of Object.keys(o)) {
const v = o[k];
if (CRED_KEYS.has(k) && typeof v === 'string' && v.length >= 6) out.add(v);
else walk(v);
}
})(config);
return Array.from(out);
}
function redactLogText(text, secrets) {
if (typeof text !== 'string' || !text) return text;
let out = text;
if (Array.isArray(secrets)) {
for (const s of secrets) {
if (typeof s === 'string' && s.length >= 6) out = out.split(s).join(REDACTED);
}
}
out = out
.replace(/https?:\/\/(?:ptb\.|canary\.)?discord(?:app)?\.com\/api\/webhooks\/\d+\/[\w-]+/gi, 'https://discord.com/api/webhooks/' + REDACTED)
.replace(/(authorization:\s*bearer\s+)\S+/gi, '$1' + REDACTED)
.replace(/\bbearer\s+[A-Za-z0-9._\-/+]{16,}/gi, 'bearer ' + REDACTED)
.replace(/([?&](?:api_?key|key|token|access_token|password|pass)=)[^\s&"'`]+/gi, '$1' + REDACTED)
.replace(/("?\b(?:api[_-]?key|apikey|password|passwd|secret|(?:access|refresh|auth|session)[_-]?token|token|sessionid)"?\s*[:=]\s*"?)[A-Za-z0-9._\-/+]{8,}/gi, '$1' + REDACTED)
.replace(/(\bset-cookie:|\bcookie:)\s*\S[^\n]*/gi, '$1 ' + REDACTED)
.replace(/(\bsess(?:_?id)?\b["'=:\s]+)[A-Za-z0-9._\-]{8,}/gi, '$1' + REDACTED);
return out;
}
function valueScrub(value, secrets) {
if (value == null) return value;
const json = JSON.stringify(value);
let scrubbed = json;
if (Array.isArray(secrets)) {
for (const s of secrets) {
if (typeof s === 'string' && s.length >= 6) scrubbed = scrubbed.split(s).join(REDACTED);
}
}
return JSON.parse(scrubbed);
}
function collectFile(filePath, label, maxBytes) {
if (!filePath) return `=== ${label} ===\n<no path configured>\n\n`;
let stat;
try { stat = fs.statSync(filePath); }
catch (err) {
if (err && err.code === 'ENOENT') return `=== ${label} (${filePath}) ===\n<file does not exist yet>\n\n`;
return `=== ${label} (${filePath}) ===\n<stat error: ${err.message}>\n\n`;
}
const cap = Number.isFinite(maxBytes) && maxBytes > 0 ? maxBytes : 5 * 1024 * 1024;
let content;
try {
if (stat.size > cap) {
const fd = fs.openSync(filePath, 'r');
const buf = Buffer.alloc(cap);
fs.readSync(fd, buf, 0, cap, stat.size - cap);
fs.closeSync(fd);
const skipped = stat.size - cap;
content = `<truncated: skipped first ${skipped} bytes; showing last ${cap} bytes of ${stat.size}>\n` + buf.toString('utf-8');
} else {
content = fs.readFileSync(filePath, 'utf-8');
}
} catch (err) {
content = `<read error: ${err.message}>`;
}
return `=== ${label} (${filePath}, size=${stat.size} bytes) ===\n${content}\n\n`;
}
function buildSupportBundleText({ header, sanitizedConfig, files }) {
const parts = [];
parts.push('=== Multi-Hoster-Upload Support Bundle ===\n');
if (header && typeof header === 'object') {
for (const [k, v] of Object.entries(header)) parts.push(`${k}: ${v}\n`);
}
parts.push('\n');
parts.push('=== Config (sanitized — password/apiKey/token/cookie/sessionId redacted) ===\n');
parts.push(JSON.stringify(sanitizedConfig, null, 2));
parts.push('\n\n');
for (const f of (files || [])) {
parts.push(collectFile(f.path, f.label || f.path, f.maxBytes));
}
return parts.join('');
}
module.exports = { sanitizeConfig, collectSecretValues, redactLogText, valueScrub, collectFile, buildSupportBundleText, CRED_KEYS, REDACTED };