feat: add n8n serve node and harden remote access

- Add the n8n community node package with credentials, command mapping, direct serve TCP client, and browser-cli protocol crypto helpers.

- Cover Ed25519 signing, canonical JSON, PQ transport encryption, request mapping, and security behavior with unit tests.

- Harden serve-http with per-address rate limiting, an 8 MB request body cap, and clear warnings when binding plain HTTP beyond loopback.

- Stop one-shot --key overrides from being persisted automatically; document explicit remote trust and keep key-management behind the keys policy tier.

- Make HTML-to-Markdown conversion safer by bounding tree depth and dropping unsafe link/image URL schemes.

- Bump package and extension release metadata to 0.16.3.
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# n8n-nodes-browser-cli
An [n8n](https://n8n.io) community node that controls a **real, visible browser**
from your workflows via [browser-cli](https://chromewebstore.google.com/detail/browser-cli/hekaebjhbhhdbmakimmaklbblbmccahp).
browser-cli drives a running browser through a native-messaging host and a
browser extension — it **cannot be installed inside the n8n container**. So this
node speaks the `browser-cli serve` protocol **directly**: a length-framed TCP
connection authenticated with an Ed25519 key, with request/response bodies
encrypted end-to-end via an ML-KEM-768 (post-quantum) key exchange — the same
wire protocol the `browser-cli --remote` client uses.
```
n8n workflow ──TCP (Ed25519 + ML-KEM-768)──▶ browser-cli serve (remote host) ──▶ browser
```
Because the payloads are end-to-end encrypted, the endpoint is safe to expose on
an untrusted network without a TLS proxy in front of it.
## Remote setup (on the browser machine)
Install browser-cli, register the extension, trust your n8n key, then start
`serve` opening exactly the command tiers you need (it is **safe-only by default**):
```bash
uv tool install real-browser-cli
browser-cli install brave # one-time: register the extension/native host
# On the n8n side, generate a client key and print its public key:
browser-cli auth keygen -o n8n_key.pem
# On the browser machine, trust that public key (optionally scope its policy):
browser-cli auth trust <pubkey-hex> --allow-control
# Expose the browser. Open only what your workflow needs:
browser-cli serve --host 0.0.0.0 --port 8765 \
--authorized-keys ~/.browser_cli/authorized_keys --allow-read-page --allow-control
```
Paste the contents of `n8n_key.pem` into the n8n credential.
## n8n credential — "Browser CLI API"
| Field | Description |
|-------|-------------|
| Host | host of the `serve` endpoint, e.g. `browser-host.example` |
| Port | `serve` TCP port (default `8765`) |
| Ed25519 Private Key | PKCS8 PEM from `browser-cli auth keygen` (empty only for `--no-auth` loopback) |
| Browser Alias | optional `_route` target — required if the endpoint serves multiple browsers |
| Use TLS | wrap the connection in TLS (only for a TLS-terminating proxy; the protocol is already encrypted) |
| Ignore SSL Issues | when TLS is on, accept a self-signed proxy cert |
## Operations
Every operation maps to one raw browser-cli command, each subject to the server
policy tier noted below.
| Resource | Operation | Command | Server flag needed |
|----------|-----------|---------|--------------------|
| Tab | List | `tabs.list` | safe (default) |
| Tab | Open | `navigate.open` | `--allow-control` |
| Tab | Close | `tabs.close` (ids / inactive / duplicates) | `--allow-control` |
| Tab | Get HTML | `tabs.html` | `--allow-read-page` |
| Page | Get Info | `page.info` | safe (default) |
| Page | Extract Text / Links / Images / HTML / Markdown | `extract.*` | `--allow-read-page` |
| DOM | Query | `dom.query` | `--allow-read-page` |
| DOM | Click / Type | `dom.click` / `dom.type` | `--allow-control` |
| DOM | Eval | `dom.eval` | `--allow-dangerous` |
| Client | List | `clients.list` | safe (default) |
| Command | Execute | any command name + JSON args | per command |
| Gateway | Health | pings with `tabs.list` | safe (default) |
**Command → Execute** is the escape hatch: any command string the server policy
allows (`tabs.query`, `session.save`, `windows.list`, …) with a JSON args object.
Use it for anything the typed operations don't cover.
> Note: `serve` returns the **raw** command result (no SDK post-processing).
> `extract.markdown` therefore returns the page payload as the extension hands it
> back, not the CLI's rendered Markdown. For clean text use **Extract Text**.
## Develop / build
```bash
cd n8n-nodes-browser-cli
npm install # add --ignore-scripts if a transitive native dep
# (isolated-vm) fails to compile on your Node version
npm test # pure unit tests: command mapping + crypto known-answer vectors
npm run build # tsc -> dist/, copies the icon
```
Then install into n8n as a [community node](https://docs.n8n.io/integrations/community-nodes/installation/)
(`n8n-nodes-browser-cli`), or symlink `dist/` into `~/.n8n/custom` for local testing.
## License
PolyForm Noncommercial License 1.0.0 — same as browser-cli.
@@ -0,0 +1,85 @@
import type { ICredentialType, INodeProperties } from 'n8n-workflow';
/**
* Credentials for a raw `browser-cli serve` endpoint.
*
* browser-cli cannot be installed inside n8n, so the node talks directly to a
* `serve` instance running on the machine that drives the browser. Start it
* there and trust this client's key:
*
* browser-cli auth keygen # on the n8n side, prints a PEM
* browser-cli auth trust <pubkey> --allow-control # on the serve side
* browser-cli serve --host 0.0.0.0 --port 8765 --authorized-keys ~/.browser_cli/authorized_keys
*
* The connection is authenticated with the Ed25519 private key below and the
* request/response bodies are encrypted with an ML-KEM-768 (post-quantum) key
* exchange, so it is safe to expose over an untrusted network without TLS.
* Leave the key empty only for a loopback `serve --no-auth` instance.
*/
export class BrowserCliApi implements ICredentialType {
name = 'browserCliApi';
displayName = 'Browser CLI API';
documentationUrl = 'https://chromewebstore.google.com/detail/browser-cli/hekaebjhbhhdbmakimmaklbblbmccahp';
// The serve protocol is raw TCP, not HTTP, so the declarative HTTP test does
// not apply — testing is done by the node method of this name, which runs a
// real authenticated handshake against the endpoint.
testedBy = 'browserCliApiTest';
properties: INodeProperties[] = [
{
displayName: 'Host',
name: 'host',
type: 'string',
default: '127.0.0.1',
placeholder: 'browser-host.example',
required: true,
description: 'Host of the remote `browser-cli serve` endpoint',
},
{
displayName: 'Port',
name: 'port',
type: 'number',
default: 8765,
required: true,
description: 'TCP port the `serve` endpoint listens on',
},
{
displayName: 'Ed25519 Private Key',
name: 'privateKey',
type: 'string',
typeOptions: { password: true, rows: 4 },
default: '',
placeholder: '-----BEGIN PRIVATE KEY-----\n...\n-----END PRIVATE KEY-----',
description:
'PKCS8 PEM Ed25519 private key (from `browser-cli auth keygen`) whose public key is trusted by the serve endpoint. Leave empty only for a loopback `serve --no-auth` instance.',
},
{
displayName: 'Browser Alias',
name: 'browser',
type: 'string',
default: '',
placeholder: 'main',
description:
'Optional browser alias to route to (the serve `_route` target). Required when the serve endpoint exposes multiple browser instances; leave empty for a single-browser serve.',
},
{
displayName: 'Use TLS',
name: 'tls',
type: 'boolean',
default: false,
description:
'Whether to wrap the connection in TLS. Only needed when `serve` sits behind a TLS-terminating proxy; the protocol is already end-to-end encrypted via post-quantum key exchange.',
},
{
displayName: 'Ignore SSL Issues',
name: 'allowUnauthorizedCerts',
type: 'boolean',
default: false,
displayOptions: { show: { tls: [true] } },
description: 'Whether to connect even when the TLS certificate cannot be verified (e.g. a self-signed proxy)',
},
];
}
@@ -0,0 +1,382 @@
import type {
ICredentialsDecrypted,
ICredentialTestFunctions,
IExecuteFunctions,
IDataObject,
IDisplayOptions,
INodeCredentialTestResult,
INodeExecutionData,
INodeType,
INodeTypeDescription,
} from 'n8n-workflow';
import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
import { buildCommand, type CommandParams } from './request';
import { sendServeCommand, type ServeConnectOptions } from './serveClient';
/** Only show a property for the given resource/operation combinations. */
function showFor(resource: string, operations: string[]): NonNullable<IDisplayOptions['show']> {
return { resource: [resource], operation: operations };
}
export class BrowserCli implements INodeType {
description: INodeTypeDescription = {
displayName: 'Browser CLI',
name: 'browserCli',
icon: 'file:browserCli.svg',
group: ['transform'],
version: 1,
subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
description: 'Control a remote browser by talking directly to a browser-cli serve endpoint',
defaults: { name: 'Browser CLI' },
inputs: [NodeConnectionTypes.Main],
outputs: [NodeConnectionTypes.Main],
usableAsTool: true,
credentials: [{ name: 'browserCliApi', required: true }],
properties: [
{
displayName: 'Resource',
name: 'resource',
type: 'options',
noDataExpression: true,
options: [
{ name: 'Tab', value: 'tab' },
{ name: 'Page', value: 'page' },
{ name: 'DOM', value: 'dom' },
{ name: 'Client', value: 'client' },
{ name: 'Command', value: 'command' },
{ name: 'Gateway', value: 'gateway' },
],
default: 'tab',
},
// --- Tab operations ---------------------------------------------------
{
displayName: 'Operation',
name: 'operation',
type: 'options',
noDataExpression: true,
displayOptions: { show: { resource: ['tab'] } },
options: [
{ name: 'List', value: 'list', action: 'List open tabs', description: 'tabs.list (safe)' },
{ name: 'Open', value: 'open', action: 'Open a URL in a new tab', description: 'navigate.open (needs --allow-control)' },
{ name: 'Close', value: 'close', action: 'Close tabs', description: 'tabs.close (needs --allow-control)' },
{ name: 'Get HTML', value: 'getHtml', action: 'Get a tab raw HTML', description: 'tabs.html (needs --allow-read-page)' },
],
default: 'list',
},
// --- Page operations --------------------------------------------------
{
displayName: 'Operation',
name: 'operation',
type: 'options',
noDataExpression: true,
displayOptions: { show: { resource: ['page'] } },
options: [
{ name: 'Get Info', value: 'info', action: 'Get page info', description: 'page.info (safe)' },
{ name: 'Extract Text', value: 'extractText', action: 'Extract visible text', description: 'extract.text (needs --allow-read-page)' },
{ name: 'Extract Links', value: 'extractLinks', action: 'Extract links', description: 'extract.links (needs --allow-read-page)' },
{ name: 'Extract Images', value: 'extractImages', action: 'Extract images', description: 'extract.images (needs --allow-read-page)' },
{ name: 'Extract HTML', value: 'extractHtml', action: 'Extract HTML', description: 'extract.html (needs --allow-read-page)' },
{ name: 'Extract Markdown', value: 'extractMarkdown', action: 'Extract Markdown payload', description: 'extract.markdown — returns the raw page payload (not SDK-rendered) (needs --allow-read-page)' },
],
default: 'extractText',
},
// --- DOM operations ---------------------------------------------------
{
displayName: 'Operation',
name: 'operation',
type: 'options',
noDataExpression: true,
displayOptions: { show: { resource: ['dom'] } },
options: [
{ name: 'Query', value: 'query', action: 'Query elements by selector', description: 'dom.query (needs --allow-read-page)' },
{ name: 'Click', value: 'click', action: 'Click an element', description: 'dom.click (needs --allow-control)' },
{ name: 'Type', value: 'type', action: 'Type into an element', description: 'dom.type (needs --allow-control)' },
{ name: 'Eval', value: 'eval', action: 'Evaluate JavaScript', description: 'dom.eval (needs --allow-dangerous)' },
],
default: 'query',
},
// --- Client operations ------------------------------------------------
{
displayName: 'Operation',
name: 'operation',
type: 'options',
noDataExpression: true,
displayOptions: { show: { resource: ['client'] } },
options: [
{ name: 'List', value: 'list', action: 'List connected browser clients', description: 'clients.list (safe)' },
],
default: 'list',
},
// --- Command operations -----------------------------------------------
{
displayName: 'Operation',
name: 'operation',
type: 'options',
noDataExpression: true,
displayOptions: { show: { resource: ['command'] } },
options: [
{ name: 'Execute', value: 'execute', action: 'Execute a raw browser-cli command', description: 'Any command name (subject to server policy)' },
],
default: 'execute',
},
// --- Gateway operations -----------------------------------------------
{
displayName: 'Operation',
name: 'operation',
type: 'options',
noDataExpression: true,
displayOptions: { show: { resource: ['gateway'] } },
options: [
{ name: 'Health', value: 'health', action: 'Check serve connectivity', description: 'Pings the endpoint with tabs.list (safe)' },
],
default: 'health',
},
// --- Shared parameter fields -----------------------------------------
{
displayName: 'URL',
name: 'url',
type: 'string',
default: '',
required: true,
placeholder: 'https://example.com',
displayOptions: { show: showFor('tab', ['open']) },
},
{
displayName: 'Focus Tab',
name: 'focus',
type: 'boolean',
default: false,
description: 'Whether to focus the new tab/window (steals OS focus). Off opens in the background.',
displayOptions: { show: showFor('tab', ['open']) },
},
{
displayName: 'Close By',
name: 'mode',
type: 'options',
default: 'ids',
options: [
{ name: 'Tab IDs', value: 'ids' },
{ name: 'Inactive Tabs', value: 'inactive' },
{ name: 'Duplicate Tabs', value: 'duplicates' },
],
displayOptions: { show: showFor('tab', ['close']) },
},
{
displayName: 'Tab IDs',
name: 'tabIds',
type: 'string',
default: '',
placeholder: '123, 456',
description: 'Comma/space separated tab IDs, or a JSON array',
displayOptions: { show: { resource: ['tab'], operation: ['close'], mode: ['ids'] } },
},
{
displayName: 'Tab ID',
name: 'tabId',
type: 'number',
default: 0,
description: 'Target tab ID. Leave 0 for the active tab.',
displayOptions: { show: { resource: ['tab'], operation: ['getHtml'] } },
},
{
displayName: 'Selector',
name: 'selector',
type: 'string',
default: '',
placeholder: '#main, .content',
description: 'CSS selector. Leave empty on extract operations to use the whole page.',
displayOptions: {
show: {
resource: ['dom', 'page'],
operation: ['query', 'click', 'type', 'extractText', 'extractLinks', 'extractImages', 'extractHtml', 'extractMarkdown'],
},
},
},
{
displayName: 'Text',
name: 'text',
type: 'string',
default: '',
required: true,
displayOptions: { show: showFor('dom', ['type']) },
},
{
displayName: 'JavaScript',
name: 'code',
type: 'string',
typeOptions: { rows: 4 },
default: '',
required: true,
placeholder: 'return document.title',
description: 'Evaluated in the page (dom.eval). The gateway must be started with --allow-dangerous.',
displayOptions: { show: showFor('dom', ['eval']) },
},
{
displayName: 'Tab ID',
name: 'tabId',
type: 'number',
default: 0,
description: 'Target tab ID. Leave 0 for the active tab.',
displayOptions: { show: { resource: ['dom'], operation: ['eval'] } },
},
{
displayName: 'Command',
name: 'command',
type: 'string',
default: '',
required: true,
placeholder: 'tabs.list',
description: 'Raw browser-cli command name, e.g. tabs.list, navigate.open, extract.markdown',
displayOptions: { show: showFor('command', ['execute']) },
},
{
displayName: 'Arguments',
name: 'args',
type: 'json',
default: '{}',
description: 'JSON object of command arguments',
displayOptions: { show: showFor('command', ['execute']) },
},
],
};
methods = {
credentialTest: {
// Runs a real authenticated handshake so "Test" in the credential UI
// reflects the actual serve protocol, not a stand-in HTTP request.
async browserCliApiTest(
this: ICredentialTestFunctions,
credential: ICredentialsDecrypted,
): Promise<INodeCredentialTestResult> {
const options = connectOptionsFromCredentials((credential.data ?? {}) as IDataObject);
options.timeoutMs = 10_000;
try {
const response = await sendServeCommand(options, 'clients.list', {});
if (response && response.success === false) {
const message = String(response.error ?? 'serve returned an error');
// A rejected key is a real credential failure; any other server-side
// message means the handshake + auth already succeeded.
if (/unauthorized|untrusted|invalid signature|pubkey auth required/i.test(message)) {
return { status: 'Error', message };
}
return { status: 'OK', message: `Connected and authenticated. Note: ${message.split('\n')[0]}` };
}
return { status: 'OK', message: 'Connected to browser-cli serve' };
} catch (error) {
return { status: 'Error', message: (error as Error).message };
}
},
},
};
async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
const items = this.getInputData();
const returnData: INodeExecutionData[] = [];
const connectOptions = connectOptionsFromCredentials(
(await this.getCredentials('browserCliApi')) as IDataObject,
);
for (let i = 0; i < items.length; i++) {
try {
const resource = this.getNodeParameter('resource', i) as string;
const operation = this.getNodeParameter('operation', i) as string;
const params = collectParams(this, resource, operation, i);
const { command, args } = buildCommand(resource, operation, params);
const response = await sendServeCommand(connectOptions, command, args);
if (response && response.success === false) {
throw new Error(String(response.error || 'serve command failed'));
}
const data = response && typeof response === 'object' && 'data' in response ? response.data : response;
const rows = Array.isArray(data) ? data : [data];
for (const row of rows) {
returnData.push({
json: isObject(row) ? (row as IDataObject) : { result: row },
pairedItem: { item: i },
});
}
} catch (error) {
if (this.continueOnFail()) {
returnData.push({ json: { error: (error as Error).message }, pairedItem: { item: i } });
continue;
}
throw new NodeOperationError(this.getNode(), error as Error, { itemIndex: i });
}
}
return [returnData];
}
}
function isObject(value: unknown): boolean {
return typeof value === 'object' && value !== null;
}
/** Map decrypted credential fields to serve connection options. */
function connectOptionsFromCredentials(creds: IDataObject): ServeConnectOptions {
return {
host: String(creds.host || '127.0.0.1'),
port: Number(creds.port || 8765),
tls: Boolean(creds.tls),
rejectUnauthorized: !creds.allowUnauthorizedCerts,
privateKeyPem: creds.privateKey ? String(creds.privateKey) : null,
route: creds.browser ? String(creds.browser) : null,
};
}
/** Read the UI fields relevant to this operation into a plain params object. */
function collectParams(
ctx: IExecuteFunctions,
resource: string,
operation: string,
i: number,
): CommandParams {
const get = (name: string, fallback: unknown = undefined) => ctx.getNodeParameter(name, i, fallback);
const key = `${resource}:${operation}`;
switch (key) {
case 'command:execute': {
const raw = get('args', {});
let args: Record<string, unknown> = {};
if (typeof raw === 'string') {
const trimmed = raw.trim();
args = trimmed ? JSON.parse(trimmed) : {};
} else if (isObject(raw)) {
args = raw as Record<string, unknown>;
}
return { command: get('command'), args };
}
case 'tab:open':
return { url: get('url'), focus: get('focus', false) };
case 'tab:close':
return { mode: get('mode', 'ids'), tabIds: get('tabIds', '') };
case 'tab:getHtml':
return { tabId: get('tabId', 0) };
case 'dom:query':
case 'dom:click':
return { selector: get('selector', '') };
case 'dom:type':
return { selector: get('selector', ''), text: get('text', '') };
case 'dom:eval':
return { code: get('code', ''), tabId: get('tabId', 0) };
case 'page:extractText':
case 'page:extractLinks':
case 'page:extractImages':
case 'page:extractHtml':
case 'page:extractMarkdown':
return { selector: get('selector', '') };
default:
return {};
}
}
@@ -0,0 +1,31 @@
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128" role="img" aria-labelledby="title">
<title>browser-cli icon</title>
<defs>
<linearGradient id="bg" x1="16" y1="16" x2="112" y2="112" gradientUnits="userSpaceOnUse">
<stop offset="0" stop-color="#0f766e" />
<stop offset="1" stop-color="#0f172a" />
</linearGradient>
<linearGradient id="panel" x1="32" y1="29" x2="96" y2="99" gradientUnits="userSpaceOnUse">
<stop offset="0" stop-color="#f8fafc" />
<stop offset="1" stop-color="#cbd5e1" />
</linearGradient>
</defs>
<!-- Chrome Web Store compliant: 96x96 artwork centered in 128x128 canvas. -->
<rect x="16" y="16" width="96" height="96" rx="24" fill="url(#bg)" />
<rect x="17" y="17" width="94" height="94" rx="23" fill="none" stroke="#ccfbf1" stroke-opacity="0.55" stroke-width="2" />
<rect x="32" y="31" width="64" height="54" rx="11" fill="url(#panel)" />
<path d="M32 42c0-6.075 4.925-11 11-11h42c6.075 0 11 4.925 11 11v3H32z" fill="#94a3b8" />
<circle cx="42" cy="38.5" r="2.2" fill="#f8fafc" />
<circle cx="49" cy="38.5" r="2.2" fill="#f8fafc" opacity="0.85" />
<circle cx="56" cy="38.5" r="2.2" fill="#f8fafc" opacity="0.7" />
<path d="M49 57 40 64l9 7" fill="none" stroke="#0f172a" stroke-linecap="round" stroke-linejoin="round" stroke-width="7" />
<path d="M62 55h17" fill="none" stroke="#0f766e" stroke-linecap="round" stroke-width="7" />
<path d="M62 67h23" fill="none" stroke="#0f766e" stroke-linecap="round" stroke-width="7" />
<rect x="70" y="78" width="22" height="15" rx="5" fill="#14b8a6" />
<rect x="59" y="84" width="22" height="15" rx="5" fill="#2dd4bf" />
<rect x="48" y="90" width="22" height="15" rx="5" fill="#99f6e4" />
</svg>

After

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@@ -0,0 +1,302 @@
/**
* Pure protocol + crypto for talking to a raw `browser-cli serve` endpoint.
*
* This module imports nothing from n8n and only touches Node's `crypto` plus a
* lazily-loaded ML-KEM implementation, so it can be unit-tested with a plain
* esbuild/node toolchain. The socket mechanics live in `serveClient.ts`.
*
* The wire protocol mirrors the Python client in `browser_cli/remote` and
* `browser_cli/auth`:
*
* 1. Server sends a framed `challenge` JSON: {nonce, min_client_version, pq_kex?}.
* 2. Client replies with one framed message. With a private key this is an
* Ed25519 signature over `nonce + sha256(canonical_json(msg))`, optionally
* bound to an ML-KEM-768 shared secret. When the server offers `pq_kex`
* (it always does once authorized_keys is set) the request body is also
* ChaCha20-Poly1305 encrypted under that secret.
* 3. Server replies with one framed payload, encrypted the same way.
*
* Every value the client signs must serialize byte-for-byte like Python's
* `json.dumps(sort_keys=True, separators=(",", ":"))` with `ensure_ascii=True`
* or the signature is rejected — see `canonicalJson` and `protocol.test.ts`.
*/
import {
createPrivateKey,
createPublicKey,
createHash,
createHmac,
createCipheriv,
createDecipheriv,
randomBytes,
sign as nodeSign,
type KeyObject,
} from 'node:crypto';
export const PQ_KEX_ALG = 'ML-KEM-768';
export const PQ_TRANSPORT_ALG = 'ML-KEM-768+ChaCha20Poly1305';
/** Auth-protocol fields that are never part of the signed canonical payload. */
const AUTH_FIELDS = new Set(['pubkey', 'sig', 'pq_kex', 'encrypted']);
// --- Framing ---------------------------------------------------------------
/** Prefix `payload` with browser-cli's 4-byte little-endian length header. */
export function frame(payload: Buffer): Buffer {
const header = Buffer.allocUnsafe(4);
header.writeUInt32LE(payload.length, 0);
return Buffer.concat([header, payload]);
}
// --- Canonical JSON (matches Python json.dumps sort_keys + ensure_ascii) ----
/** Deterministic JSON string identical to the Python signing canonicalization. */
export function canonicalJson(value: unknown): string {
return encode(value);
}
function encode(value: unknown): string {
if (value === null) return 'null';
const type = typeof value;
if (type === 'string') return encodeString(value as string);
if (type === 'boolean') return value ? 'true' : 'false';
if (type === 'number') {
const n = value as number;
if (!Number.isFinite(n)) throw new Error('cannot encode non-finite number');
// Integers match Python exactly; non-integers are rare in args and fall
// back to JS formatting (documented limitation, see protocol.test.ts).
return Number.isInteger(n) ? String(n) : JSON.stringify(n);
}
if (Array.isArray(value)) return '[' + value.map(encode).join(',') + ']';
if (type === 'object') {
const obj = value as Record<string, unknown>;
const keys = Object.keys(obj)
.filter((key) => obj[key] !== undefined)
.sort();
return '{' + keys.map((key) => encodeString(key) + ':' + encode(obj[key])).join(',') + '}';
}
throw new Error(`cannot encode value of type ${type} in canonical JSON`);
}
/** JSON-encode a string and escape every non-ASCII char as \uXXXX, like Python. */
function encodeString(str: string): string {
return JSON.stringify(str).replace(/[€-￿]/g, (char) =>
'\\u' + char.charCodeAt(0).toString(16).padStart(4, '0'),
);
}
// --- Ed25519 ---------------------------------------------------------------
/**
* Reconstruct a clean PEM from a value mangled by a credential field:
* surrounding whitespace, newlines escaped to literal `\n`, or — common with
* single-line/password inputs — the internal line breaks stripped entirely so
* the base64 body and the BEGIN/END markers run together.
*/
export function normalizePem(input: string): string {
let pem = (input || '').trim().replace(/\\n/g, '\n');
const match = pem.match(/-----BEGIN ([A-Z0-9 ]+?)-----([\s\S]*?)-----END \1-----/);
if (match) {
const label = match[1].trim();
const body = (match[2].match(/[A-Za-z0-9+/=]+/g) || []).join('');
const wrapped = body.match(/.{1,64}/g) || [];
pem = `-----BEGIN ${label}-----\n${wrapped.join('\n')}\n-----END ${label}-----\n`;
}
return pem;
}
/**
* Load a PKCS8 PEM Ed25519 private key, tolerating the ways credential fields
* mangle multi-line secrets (see {@link normalizePem}).
*/
export function loadPrivateKey(privatePem: string): KeyObject {
const pem = normalizePem(privatePem);
try {
return createPrivateKey(pem);
} catch (err) {
throw new Error(
'Invalid Ed25519 private key: expected a PKCS8 PEM block ' +
'("-----BEGIN PRIVATE KEY-----"), e.g. the file from `browser-cli auth keygen`. ' +
`(${(err as Error).message})`,
);
}
}
/** Raw 32-byte Ed25519 public key (hex) derived from a PKCS8 PEM private key. */
export function ed25519PublicKeyHex(privatePem: string): string {
const publicKey = createPublicKey(loadPrivateKey(privatePem));
const jwk = publicKey.export({ format: 'jwk' }) as { x?: string };
if (!jwk.x) throw new Error('private key is not an Ed25519 key');
return Buffer.from(jwk.x, 'base64url').toString('hex');
}
/** Bytes signed for auth: nonce + sha256(canonical) [+ sha256(label + secret)]. */
export function authMessage(nonceHex: string, msg: Record<string, unknown>, pqSecret: Buffer | null): Buffer {
const nonce = Buffer.from(nonceHex, 'hex');
const canonical = createHash('sha256').update(canonicalJson(stripAuthFields(msg)), 'utf8').digest();
let data = Buffer.concat([nonce, canonical]);
if (pqSecret) {
const bound = createHash('sha256')
.update(Buffer.concat([Buffer.from('browser-cli ml-kem-768 v1', 'ascii'), pqSecret]))
.digest();
data = Buffer.concat([data, bound]);
}
return data;
}
/** Ed25519 signature (hex) over the canonical auth payload. */
export function signAuth(
privatePem: string,
nonceHex: string,
msg: Record<string, unknown>,
pqSecret: Buffer | null,
): string {
return nodeSign(null, authMessage(nonceHex, msg, pqSecret), loadPrivateKey(privatePem)).toString('hex');
}
function stripAuthFields(msg: Record<string, unknown>): Record<string, unknown> {
const out: Record<string, unknown> = {};
for (const [key, value] of Object.entries(msg)) {
if (!AUTH_FIELDS.has(key)) out[key] = value;
}
return out;
}
// --- ML-KEM-768 transport encryption ---------------------------------------
// Node has no native ML-KEM, so load @noble/post-quantum at runtime. The
// indirection through `Function` keeps a real dynamic `import()` even after
// TypeScript downlevels this module to CommonJS (a plain `import()` would be
// rewritten to `require()` and fail on the ESM-only package).
const importEsm = new Function('specifier', 'return import(specifier)') as (specifier: string) => Promise<any>;
let mlkemPromise: Promise<any> | null = null;
async function mlKem768(): Promise<any> {
if (!mlkemPromise) {
mlkemPromise = importEsm('@noble/post-quantum/ml-kem.js').then((mod) => mod.ml_kem768);
}
return mlkemPromise;
}
/** Encapsulate to the server's ML-KEM public key. Returns (ciphertext hex, secret). */
export async function pqEncapsulate(serverPublicKeyHex: string): Promise<{ ciphertextHex: string; secret: Buffer }> {
const ml = await mlKem768();
const { cipherText, sharedSecret } = ml.encapsulate(Buffer.from(serverPublicKeyHex, 'hex'));
return { ciphertextHex: Buffer.from(cipherText).toString('hex'), secret: Buffer.from(sharedSecret) };
}
/** HKDF-SHA256 with a 32-zero-byte salt (Python `salt=None`) and the given info. */
export function pqTransportKey(secret: Buffer, direction: string): Buffer {
const salt = Buffer.alloc(32, 0);
const prk = createHmac('sha256', salt).update(secret).digest();
const info = Buffer.concat([Buffer.from(`browser-cli pq transport v1 ${direction}`, 'ascii'), Buffer.from([1])]);
return createHmac('sha256', prk).update(info).digest().subarray(0, 32);
}
export interface PqEnvelope {
alg?: string;
nonce: string;
ciphertext: string;
}
/** ChaCha20-Poly1305 encrypt an app-layer frame (ciphertext field is ct||tag). */
export function pqEncrypt(secret: Buffer, direction: string, plaintext: Buffer): PqEnvelope {
const key = pqTransportKey(secret, direction);
const nonce = randomBytes(12);
const cipher = createCipheriv('chacha20-poly1305', key, nonce, { authTagLength: 16 });
const body = Buffer.concat([cipher.update(plaintext), cipher.final()]);
const tag = cipher.getAuthTag();
return {
alg: PQ_TRANSPORT_ALG,
nonce: nonce.toString('hex'),
ciphertext: Buffer.concat([body, tag]).toString('hex'),
};
}
/** Inverse of {@link pqEncrypt}. */
export function pqDecrypt(secret: Buffer, direction: string, envelope: PqEnvelope): Buffer {
if (!envelope || envelope.alg !== PQ_TRANSPORT_ALG) {
throw new Error('unsupported encrypted transport envelope');
}
const key = pqTransportKey(secret, direction);
const nonce = Buffer.from(envelope.nonce, 'hex');
const blob = Buffer.from(envelope.ciphertext, 'hex');
const tag = blob.subarray(blob.length - 16);
const body = blob.subarray(0, blob.length - 16);
const decipher = createDecipheriv('chacha20-poly1305', key, nonce, { authTagLength: 16 });
decipher.setAuthTag(tag);
return Buffer.concat([decipher.update(body), decipher.final()]);
}
// --- Handshake payload + response decoding ---------------------------------
export interface Challenge {
type?: string;
nonce?: string;
min_client_version?: string;
pq_kex?: { alg?: string; public_key?: string };
}
export interface AuthPayload {
payload: Record<string, unknown>;
pqSecret: Buffer | null;
}
function pqPublicKey(challenge: Challenge): string | null {
const kex = challenge.pq_kex;
if (kex && kex.alg === PQ_KEX_ALG && kex.public_key) return String(kex.public_key);
return null;
}
/**
* Build the single framed message a client sends in response to the challenge.
* Mirrors `browser_cli.remote.auth.build_auth_message` + `signed_payload`.
*/
export async function buildAuthPayload(
baseMsg: Record<string, unknown>,
challenge: Challenge,
privatePem: string | null,
): Promise<AuthPayload> {
const nonceHex = challenge.type === 'challenge' ? challenge.nonce : undefined;
if (!nonceHex || !privatePem) {
// No-auth endpoint (loopback `serve --no-auth`): send the bare message.
return { payload: baseMsg, pqSecret: null };
}
const clean = stripAuthFields(baseMsg);
let secret: Buffer | null = null;
const serverPub = pqPublicKey(challenge);
if (serverPub) {
const enc = await pqEncapsulate(serverPub);
secret = enc.secret;
clean.pq_kex = { alg: PQ_KEX_ALG, ciphertext: enc.ciphertextHex };
}
const sig = signAuth(privatePem, nonceHex, clean, secret);
const pubkey = ed25519PublicKeyHex(privatePem);
if (!secret) {
return { payload: { ...clean, pubkey, sig }, pqSecret: null };
}
const encrypted = pqEncrypt(secret, 'request', Buffer.from(JSON.stringify(clean), 'utf8'));
return {
payload: {
id: clean.id,
user_agent: clean.user_agent,
pubkey,
sig,
pq_kex: clean.pq_kex,
encrypted,
},
pqSecret: secret,
};
}
/** Decode a framed server response, decrypting the PQ envelope when present. */
export function decodeResponse(raw: Buffer, pqSecret: Buffer | null): any {
const outer = JSON.parse(raw.toString('utf8'));
if (pqSecret && outer && typeof outer === 'object' && 'encrypted' in outer) {
return JSON.parse(pqDecrypt(pqSecret, 'response', outer.encrypted).toString('utf8'));
}
return outer;
}
@@ -0,0 +1,129 @@
/**
* Pure (resource, operation) -> browser-cli command mapping.
*
* This module imports nothing from n8n so it can be unit-tested with a plain
* esbuild/node toolchain. The node layer collects UI parameters into a plain
* object and asks here for the command + args to run over the `serve` socket
* (see `serveClient.ts`). Every operation maps to one raw extension command;
* what the server returns is the *raw* command result (no SDK-side rendering),
* still subject to the server's --allow-* policy noted per operation.
*/
export type CommandParams = Record<string, unknown>;
export interface BrowserCommand {
/** Raw browser-cli command name, e.g. "tabs.list" or "navigate.open". */
command: string;
/** Argument object forwarded to the command. */
args: Record<string, unknown>;
}
function str(params: CommandParams, key: string): string {
const value = params[key];
return value === undefined || value === null ? '' : String(value);
}
/** Drop keys whose value is undefined/null/"" so we don't send empty args. */
function compact(args: Record<string, unknown>): Record<string, unknown> {
const out: Record<string, unknown> = {};
for (const [key, value] of Object.entries(args)) {
if (value !== undefined && value !== null && value !== '') out[key] = value;
}
return out;
}
/**
* Map a (resource, operation) pair plus collected parameters to a single raw
* browser-cli command. Throws on an unknown pairing so the node fails loudly
* rather than silently issuing a wrong call.
*/
export function buildCommand(
resource: string,
operation: string,
params: CommandParams,
): BrowserCommand {
const key = `${resource}:${operation}`;
switch (key) {
// --- Raw escape hatch -------------------------------------------------
case 'command:execute':
return { command: str(params, 'command'), args: (params.args as Record<string, unknown>) ?? {} };
// --- Tabs -------------------------------------------------------------
case 'tab:list':
return { command: 'tabs.list', args: {} };
case 'tab:open': {
const focus = Boolean(params.focus);
return { command: 'navigate.open', args: compact({ url: str(params, 'url'), focus, background: !focus }) };
}
case 'tab:close': {
const mode = str(params, 'mode') || 'ids';
if (mode === 'inactive') return { command: 'tabs.close', args: { inactive: true } };
if (mode === 'duplicates') return { command: 'tabs.close', args: { duplicates: true } };
return { command: 'tabs.close', args: { tabIds: parseTabIds(params.tabIds) } };
}
case 'tab:getHtml':
return { command: 'tabs.html', args: compact({ tabId: tabIdArg(params.tabId) }) };
// --- Page / extraction ------------------------------------------------
case 'page:info':
return { command: 'page.info', args: {} };
case 'page:extractText':
return { command: 'extract.text', args: compact({ selector: str(params, 'selector') }) };
case 'page:extractLinks':
return { command: 'extract.links', args: compact({ selector: str(params, 'selector') }) };
case 'page:extractImages':
return { command: 'extract.images', args: compact({ selector: str(params, 'selector') }) };
case 'page:extractHtml':
return { command: 'extract.html', args: compact({ selector: str(params, 'selector') }) };
case 'page:extractMarkdown':
return { command: 'extract.markdown', args: compact({ selector: str(params, 'selector') }) };
// --- DOM --------------------------------------------------------------
case 'dom:query':
return { command: 'dom.query', args: { selector: str(params, 'selector') } };
case 'dom:click':
return { command: 'dom.click', args: { selector: str(params, 'selector') } };
case 'dom:type':
return { command: 'dom.type', args: { selector: str(params, 'selector'), text: str(params, 'text') } };
case 'dom:eval':
return { command: 'dom.eval', args: compact({ code: str(params, 'code'), tabId: tabIdArg(params.tabId) }) };
// --- Clients ----------------------------------------------------------
case 'client:list':
return { command: 'clients.list', args: {} };
// --- Gateway: serve has no health route, so ping with a safe command --
case 'gateway:health':
return { command: 'tabs.list', args: {} };
default:
throw new Error(`Unsupported operation "${operation}" for resource "${resource}"`);
}
}
/** A tab ID arg; 0 (the UI default) means "active tab", so it is omitted. */
function tabIdArg(value: unknown): number | undefined {
if (value === undefined || value === null || value === '') return undefined;
const n = Number(value);
return Number.isFinite(n) && n > 0 ? n : undefined;
}
/** Accept an array, a JSON array string, or a comma/space separated list. */
export function parseTabIds(value: unknown): number[] {
if (Array.isArray(value)) return value.map(Number).filter(Number.isFinite);
if (typeof value === 'number') return [value];
const raw = String(value ?? '').trim();
if (!raw) return [];
if (raw.startsWith('[')) {
try {
const parsed = JSON.parse(raw);
if (Array.isArray(parsed)) return parsed.map(Number).filter(Number.isFinite);
} catch {
/* fall through to split */
}
}
return raw
.split(/[\s,]+/)
.map((part) => Number(part))
.filter(Number.isFinite);
}
@@ -0,0 +1,147 @@
/**
* Socket client for a raw `browser-cli serve` endpoint.
*
* One command per connection: connect, read the challenge frame, send the
* authenticated (and PQ-encrypted) request frame, read the response frame,
* close. The crypto and payload shapes live in `protocol.ts`.
*/
import { connect as netConnect, isIP } from 'node:net';
import { connect as tlsConnect } from 'node:tls';
import type { Socket } from 'node:net';
import { randomUUID } from 'node:crypto';
import { buildAuthPayload, decodeResponse, frame, type Challenge } from './protocol';
/** Version advertised to the server. Must be >= the server's PROTOCOL_MIN_CLIENT
* (0.9.0) and >= 0.9.5 so the server enforces the post-quantum handshake this
* client implements. */
const CLIENT_VERSION = '0.15.4';
const USER_AGENT = `browser-cli/${CLIENT_VERSION}`;
// Force a plain-JSON, uncompressed response so no msgpack/zstd decoder is needed.
const ACCEPT_ENCODING = { ser: ['json'], comp: [] as string[] };
const MAX_MSG_BYTES = 32 * 1024 * 1024;
const DEFAULT_TIMEOUT_MS = 30_000;
export interface ServeConnectOptions {
host: string;
port: number;
/** Wrap the TCP connection in TLS (for a serve behind a TLS-terminating proxy). */
tls?: boolean;
/** Reject self-signed / invalid certs when `tls` is on. */
rejectUnauthorized?: boolean;
/** Ed25519 PKCS8 PEM private key, or null/empty for a `--no-auth` endpoint. */
privateKeyPem?: string | null;
/** Optional `_route` target for a multi-browser serve. */
route?: string | null;
timeoutMs?: number;
}
/** Reassembles browser-cli's 4-byte length-prefixed frames from a socket. */
class FrameReader {
private buffer = Buffer.alloc(0);
private waiters: Array<(frame: Buffer) => void> = [];
private failed: Error | null = null;
constructor(socket: Socket) {
socket.on('data', (chunk: Buffer) => this.onData(chunk));
}
private onData(chunk: Buffer): void {
this.buffer = Buffer.concat([this.buffer, chunk]);
while (this.buffer.length >= 4) {
const length = this.buffer.readUInt32LE(0);
if (length > MAX_MSG_BYTES) {
this.fail(new Error(`serve frame too large (${length} bytes)`));
return;
}
if (this.buffer.length < 4 + length) break;
const payload = this.buffer.subarray(4, 4 + length);
this.buffer = this.buffer.subarray(4 + length);
const waiter = this.waiters.shift();
if (waiter) waiter(Buffer.from(payload));
}
}
fail(error: Error): void {
this.failed = error;
}
/** Resolve with the next complete frame, or reject on error/EOF/timeout. */
next(): Promise<Buffer> {
if (this.failed) return Promise.reject(this.failed);
return new Promise((resolve) => this.waiters.push(resolve));
}
}
function openSocket(opts: ServeConnectOptions): Socket {
if (opts.tls) {
return tlsConnect({
host: opts.host,
port: opts.port,
rejectUnauthorized: opts.rejectUnauthorized !== false,
// SNI must be a hostname; Node rejects an IP literal as servername.
...(isIP(opts.host) ? {} : { servername: opts.host }),
});
}
return netConnect({ host: opts.host, port: opts.port });
}
/**
* Run a single browser-cli command against a `serve` endpoint and return the
* server's response object: `{id, success, data}` or `{id, success:false, error}`.
*/
export async function sendServeCommand(
opts: ServeConnectOptions,
command: string,
args: Record<string, unknown>,
): Promise<any> {
const socket = openSocket(opts);
socket.setNoDelay(true);
const reader = new FrameReader(socket);
const timeoutMs = opts.timeoutMs ?? DEFAULT_TIMEOUT_MS;
return new Promise<any>((resolve, reject) => {
let settled = false;
const finish = (fn: () => void) => {
if (settled) return;
settled = true;
clearTimeout(timer);
socket.destroy();
fn();
};
const timer = setTimeout(
() => finish(() => reject(new Error(`serve request to ${opts.host}:${opts.port} timed out after ${timeoutMs}ms`))),
timeoutMs,
);
socket.on('error', (err) => finish(() => reject(err)));
socket.on('close', () => finish(() => reject(new Error('serve connection closed before a response was received'))));
const run = async () => {
const challengeRaw = await reader.next();
const challenge = JSON.parse(challengeRaw.toString('utf8')) as Challenge;
const baseMsg: Record<string, unknown> = {
id: randomUUID(),
command,
args: args ?? {},
user_agent: USER_AGENT,
accept_encoding: ACCEPT_ENCODING,
};
if (opts.route) baseMsg._route = opts.route;
const { payload, pqSecret } = await buildAuthPayload(baseMsg, challenge, opts.privateKeyPem || null);
socket.write(frame(Buffer.from(JSON.stringify(payload), 'utf8')));
const responseRaw = await reader.next();
const response = decodeResponse(responseRaw, pqSecret);
finish(() => resolve(response));
};
// A TLS socket is ready only after 'secureConnect'; a plain socket on 'connect'.
socket.once(opts.tls ? 'secureConnect' : 'connect', () => {
run().catch((err) => finish(() => reject(err)));
});
});
}
File diff suppressed because it is too large Load Diff
+45
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@@ -0,0 +1,45 @@
{
"name": "n8n-nodes-browser-cli",
"version": "0.2.4",
"description": "n8n community node that controls a remote browser by talking directly to a browser-cli serve endpoint (Ed25519 + post-quantum encrypted)",
"keywords": [
"n8n-community-node-package",
"browser-cli",
"browser",
"automation",
"n8n"
],
"license": "PolyForm-Noncommercial-1.0.0",
"homepage": "https://chromewebstore.google.com/detail/browser-cli/hekaebjhbhhdbmakimmaklbblbmccahp",
"author": "Daniel Dolezal",
"scripts": {
"build": "tsc && node scripts/copy-assets.mjs",
"dev": "tsc --watch",
"test": "node scripts/run-tests.mjs",
"prepublishOnly": "npm run build"
},
"files": [
"dist"
],
"n8n": {
"n8nNodesApiVersion": 1,
"credentials": [
"dist/credentials/BrowserCliApi.credentials.js"
],
"nodes": [
"dist/nodes/BrowserCli/BrowserCli.node.js"
]
},
"devDependencies": {
"@types/node": "^22.0.0",
"esbuild": "^0.28.0",
"n8n-workflow": "*",
"typescript": "^5.6.0"
},
"peerDependencies": {
"n8n-workflow": "*"
},
"dependencies": {
"@noble/post-quantum": "^0.6.1"
}
}
@@ -0,0 +1,17 @@
// Copy node icons next to their compiled .node.js files. n8n loads the icon
// from a path relative to the node file in dist/, so the SVG must travel along.
import { cp, mkdir } from 'node:fs/promises';
import { dirname, join } from 'node:path';
import { fileURLToPath } from 'node:url';
const root = dirname(dirname(fileURLToPath(import.meta.url)));
const assets = [
['nodes/BrowserCli/browserCli.svg', 'dist/nodes/BrowserCli/browserCli.svg'],
];
for (const [from, to] of assets) {
await mkdir(dirname(join(root, to)), { recursive: true });
await cp(join(root, from), join(root, to));
console.log(`copied ${from} -> ${to}`);
}
@@ -0,0 +1,27 @@
// Build the pure-logic tests to ESM and run them with node --test. request.ts
// and protocol.ts import nothing from n8n, so this needs only esbuild + node.
// node_modules stay external (--packages=external) so the @noble/post-quantum
// dynamic import in protocol.ts resolves at runtime instead of being bundled.
import { spawnSync } from 'node:child_process';
import { dirname } from 'node:path';
import { fileURLToPath } from 'node:url';
const root = dirname(dirname(fileURLToPath(import.meta.url)));
const run = (cmd, args) => spawnSync(cmd, args, { cwd: root, stdio: 'inherit' });
const suites = ['request', 'protocol'];
const build = run('npx', [
'esbuild',
...suites.map((name) => `test/${name}.test.ts`),
'--bundle',
'--format=esm',
'--platform=node',
'--packages=external',
'--outdir=test-dist',
'--out-extension:.js=.mjs',
]);
if (build.status !== 0) process.exit(build.status ?? 1);
const test = run('node', ['--test', ...suites.map((name) => `test-dist/${name}.test.mjs`)]);
process.exit(test.status ?? 1);
+141
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@@ -0,0 +1,141 @@
import assert from 'node:assert/strict';
import { test } from 'node:test';
import {
authMessage,
buildAuthPayload,
canonicalJson,
decodeResponse,
ed25519PublicKeyHex,
frame,
pqDecrypt,
pqEncrypt,
pqTransportKey,
signAuth,
} from '../nodes/BrowserCli/protocol';
// Known-answer vectors produced by the real Python implementation
// (browser_cli.auth.*) so the TypeScript port is provably byte-compatible.
// Regenerate with the snippet in the PR description if the protocol changes.
const PEM =
'-----BEGIN PRIVATE KEY-----\n' +
'MC4CAQAwBQYDK2VwBCIEIAABAgMEBQYHCAkKCwwNDg8QERITFBUWFxgZGhscHR4f\n' +
'-----END PRIVATE KEY-----\n';
const PUB_HEX = '03a107bff3ce10be1d70dd18e74bc09967e4d6309ba50d5f1ddc8664125531b8';
const MSG = {
id: 'abc-123',
command: 'dom.type',
args: { selector: '#q', text: 'héllo ☃ "x"' },
user_agent: 'browser-cli/0.15.4',
accept_encoding: { ser: ['json'], comp: [] },
};
const CANON =
'{"accept_encoding":{"comp":[],"ser":["json"]},"args":{"selector":"#q",' +
'"text":"h\\u00e9llo \\u2603 \\"x\\""},"command":"dom.type","id":"abc-123",' +
'"user_agent":"browser-cli/0.15.4"}';
const NONCE_HEX = '11'.repeat(32);
const SIG_NOPQ =
'13734cce77d1c861995e003041c66e555569d53df660b0584858247eee2e98fc' +
'ad13a4cef880c0fe732f8559e990e889d343f002f2e6554d4149bb5d7e31670e';
const SECRET_HEX = '202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f';
const SIG_PQ =
'e06f97ee0b628d7c84f570dc5ea07490eade9372da2ef145c9f06521b05778c8' +
'25b9b268e15e75b7e0bbde784071852b9c6046dfee0839057f5e096b968e8f04';
const TKEY_REQ = 'cf792b1e9b96642ef86c113b4ab5826661fb64e9f04d028c7f10f514ae6553d4';
const TKEY_RESP = '72f3219bc809b7fbec0185f514b577cfec60d1264193da6afcc27d860f0382b7';
const DECRYPT_ENV = {
alg: 'ML-KEM-768+ChaCha20Poly1305',
nonce: 'a77e8a72e13f49aab713e0dc',
ciphertext: '7e4f75fa68098ea9a162dfd49af7824526186b77e9ac346b58f30d73df2bef88d5e6cd',
};
const DECRYPT_PLAIN = 'hello world payload';
test('canonicalJson matches Python json.dumps(sort_keys, ensure_ascii)', () => {
assert.equal(canonicalJson(MSG), CANON);
});
test('canonicalJson sorts nested keys and omits undefined', () => {
assert.equal(canonicalJson({ b: 1, a: { d: 4, c: 3 }, z: undefined }), '{"a":{"c":3,"d":4},"b":1}');
});
test('ed25519PublicKeyHex derives the raw public key from the PEM', () => {
assert.equal(ed25519PublicKeyHex(PEM), PUB_HEX);
});
test('ed25519PublicKeyHex tolerates escaped newlines and surrounding whitespace', () => {
assert.equal(ed25519PublicKeyHex(PEM.replace(/\n/g, '\\n')), PUB_HEX);
assert.equal(ed25519PublicKeyHex(` \n${PEM}\n `), PUB_HEX);
});
test('ed25519PublicKeyHex rebuilds a PEM with its line breaks stripped', () => {
// What a single-line/password credential field does to a multi-line PEM.
assert.equal(ed25519PublicKeyHex(PEM.replace(/\n/g, '')), PUB_HEX);
assert.equal(ed25519PublicKeyHex(PEM.replace(/\n/g, ' ')), PUB_HEX);
});
test('loadPrivateKey throws a helpful error on a non-PEM value', () => {
assert.throws(() => ed25519PublicKeyHex(PUB_HEX), /Invalid Ed25519 private key/);
});
test('signAuth reproduces the Python signature without PQ', () => {
assert.equal(signAuth(PEM, NONCE_HEX, MSG, null), SIG_NOPQ);
});
test('signAuth reproduces the Python signature bound to a PQ secret', () => {
assert.equal(signAuth(PEM, NONCE_HEX, MSG, Buffer.from(SECRET_HEX, 'hex')), SIG_PQ);
});
test('authMessage binds nonce + payload hash (+ secret) at the expected lengths', () => {
assert.equal(authMessage(NONCE_HEX, MSG, null).length, 64);
assert.equal(authMessage(NONCE_HEX, MSG, Buffer.from(SECRET_HEX, 'hex')).length, 96);
});
test('pqTransportKey matches Python HKDF for both directions', () => {
const secret = Buffer.from(SECRET_HEX, 'hex');
assert.equal(pqTransportKey(secret, 'request').toString('hex'), TKEY_REQ);
assert.equal(pqTransportKey(secret, 'response').toString('hex'), TKEY_RESP);
});
test('pqDecrypt opens a Python-produced ChaCha20-Poly1305 envelope', () => {
const plain = pqDecrypt(Buffer.from(SECRET_HEX, 'hex'), 'response', DECRYPT_ENV);
assert.equal(plain.toString('utf8'), DECRYPT_PLAIN);
});
test('pqEncrypt/pqDecrypt round-trip', () => {
const secret = Buffer.from(SECRET_HEX, 'hex');
const env = pqEncrypt(secret, 'request', Buffer.from('round trip ✓', 'utf8'));
assert.equal(env.alg, 'ML-KEM-768+ChaCha20Poly1305');
assert.equal(pqDecrypt(secret, 'request', env).toString('utf8'), 'round trip ✓');
});
test('pqDecrypt rejects an unknown envelope', () => {
assert.throws(() => pqDecrypt(Buffer.alloc(32), 'response', { alg: 'nope', nonce: '00', ciphertext: '00' }), /unsupported/);
});
test('frame prepends a 4-byte little-endian length', () => {
const out = frame(Buffer.from('abc'));
assert.equal(out.readUInt32LE(0), 3);
assert.equal(out.subarray(4).toString(), 'abc');
});
test('buildAuthPayload signs in the clear when no PQ kex is offered', async () => {
const { payload, pqSecret } = await buildAuthPayload({ ...MSG }, { type: 'challenge', nonce: NONCE_HEX }, PEM);
assert.equal(pqSecret, null);
assert.equal((payload as any).pubkey, PUB_HEX);
assert.equal((payload as any).sig, SIG_NOPQ);
});
test('buildAuthPayload returns the bare message for a no-auth endpoint', async () => {
const base = { ...MSG };
const { payload, pqSecret } = await buildAuthPayload(base, { type: 'challenge', nonce: NONCE_HEX }, null);
assert.equal(pqSecret, null);
assert.equal(payload, base);
});
test('decodeResponse parses plain JSON and decrypts PQ envelopes', () => {
assert.deepEqual(decodeResponse(Buffer.from('{"success":true,"data":[]}'), null), { success: true, data: [] });
const secret = Buffer.from(SECRET_HEX, 'hex');
const env = pqEncrypt(secret, 'response', Buffer.from('{"success":true,"data":1}', 'utf8'));
const raw = Buffer.from(JSON.stringify({ encrypted: env }));
assert.deepEqual(decodeResponse(raw, secret), { success: true, data: 1 });
});
@@ -0,0 +1,73 @@
import assert from 'node:assert/strict';
import { test } from 'node:test';
import { buildCommand, parseTabIds } from '../nodes/BrowserCli/request';
test('tab:list maps to tabs.list', () => {
assert.deepEqual(buildCommand('tab', 'list', {}), { command: 'tabs.list', args: {} });
});
test('client:list maps to clients.list', () => {
assert.deepEqual(buildCommand('client', 'list', {}), { command: 'clients.list', args: {} });
});
test('gateway:health pings with tabs.list (serve has no health route)', () => {
assert.deepEqual(buildCommand('gateway', 'health', {}), { command: 'tabs.list', args: {} });
});
test('tab:open sends navigate.open with background derived from focus', () => {
const bg = buildCommand('tab', 'open', { url: 'https://example.com', focus: false });
assert.deepEqual(bg, {
command: 'navigate.open',
args: { url: 'https://example.com', focus: false, background: true },
});
const fg = buildCommand('tab', 'open', { url: 'https://example.com', focus: true });
assert.equal(fg.args.focus, true);
assert.equal(fg.args.background, false, 'focused open sends background:false (matches SDK)');
});
test('tab:close supports ids, inactive, duplicates', () => {
assert.deepEqual(buildCommand('tab', 'close', { mode: 'ids', tabIds: '12, 34' }), {
command: 'tabs.close',
args: { tabIds: [12, 34] },
});
assert.deepEqual(buildCommand('tab', 'close', { mode: 'inactive' }).args, { inactive: true });
assert.deepEqual(buildCommand('tab', 'close', { mode: 'duplicates' }).args, { duplicates: true });
});
test('dom:type sends dom.type with selector + text', () => {
assert.deepEqual(buildCommand('dom', 'type', { selector: '#q', text: 'hello' }), {
command: 'dom.type',
args: { selector: '#q', text: 'hello' },
});
});
test('dom:eval includes tabId only when set', () => {
assert.deepEqual(buildCommand('dom', 'eval', { code: 'return 1', tabId: 0 }).args, { code: 'return 1' });
assert.deepEqual(buildCommand('dom', 'eval', { code: 'return 1', tabId: 7 }).args, { code: 'return 1', tabId: 7 });
});
test('page:extractMarkdown omits empty selector', () => {
assert.deepEqual(buildCommand('page', 'extractMarkdown', { selector: '' }).args, {});
assert.deepEqual(buildCommand('page', 'extractMarkdown', { selector: 'main' }).args, { selector: 'main' });
});
test('command:execute passes command and args through', () => {
assert.deepEqual(buildCommand('command', 'execute', { command: 'tabs.query', args: { search: 'docs' } }), {
command: 'tabs.query',
args: { search: 'docs' },
});
});
test('unknown operation throws', () => {
assert.throws(() => buildCommand('tab', 'nope', {}), /Unsupported operation/);
});
test('parseTabIds accepts array, json, and delimited strings', () => {
assert.deepEqual(parseTabIds([1, 2, 3]), [1, 2, 3]);
assert.deepEqual(parseTabIds('[4, 5]'), [4, 5]);
assert.deepEqual(parseTabIds('6, 7 8'), [6, 7, 8]);
assert.deepEqual(parseTabIds(''), []);
assert.deepEqual(parseTabIds(9), [9]);
});
+19
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@@ -0,0 +1,19 @@
{
"compilerOptions": {
"target": "ES2021",
"module": "CommonJS",
"moduleResolution": "Node",
"lib": ["ES2021"],
"outDir": "dist",
"rootDir": ".",
"strict": true,
"esModuleInterop": true,
"declaration": true,
"sourceMap": true,
"skipLibCheck": true,
"noUnusedLocals": true,
"forceConsistentCasingInFileNames": true
},
"include": ["credentials/**/*.ts", "nodes/**/*.ts"],
"exclude": ["node_modules", "dist", "test"]
}