feat(extension): Terminal-only sidebar — auth fix, UX polish, chat rip

The chat queue path is gone. The Chrome side panel is now just an
interactive claude PTY in xterm.js. Activity / Refs / Inspector still
exist behind the `debug` toggle in the footer.

Three threads of change, all from dogfood iteration on top of
cc-pty-import:

1. fix(server): cross-port WS auth via Sec-WebSocket-Protocol
   - Browsers can't set Authorization on a WebSocket upgrade. We had
     been minting an HttpOnly gstack_pty cookie via /pty-session, but
     SameSite=Strict cookies don't survive the cross-port jump from
     server.ts:34567 to the agent's random port from a chrome-extension
     origin. The WS opened then immediately closed → "Session ended."
   - /pty-session now also returns ptySessionToken in the JSON body.
   - Extension calls `new WebSocket(url, [`gstack-pty.<token>`])`.
     Browser sends Sec-WebSocket-Protocol on the upgrade.
   - Agent reads the protocol header, validates against validTokens,
     and MUST echo the protocol back (Chromium closes the connection
     immediately if a server doesn't pick one of the offered protocols).
   - Cookie path is kept as a fallback for non-browser callers (curl,
     integration tests).
   - New integration test exercises the full protocol-auth round-trip
     via raw fetch+Upgrade so a future regression of this exact class
     fails in CI.

2. fix(extension): UX polish on the Terminal pane
   - Eager auto-connect when the sidebar opens — no "Press any key to
     start" friction every reload.
   - Always-visible ↻ Restart button in the terminal toolbar (not
     gated on the ENDED state) so the user can force a fresh claude
     mid-session.
   - MutationObserver on #tab-terminal's class attribute drives a
     fitAddon.fit() + term.refresh() when the pane becomes visible
     again — xterm doesn't auto-redraw after display:none → display:flex.

3. feat(extension): rip the chat tab + sidebar-agent.ts
   - Sidebar is Terminal-only. No more Terminal | Chat primary nav.
   - sidebar-agent.ts deleted. /sidebar-command, /sidebar-chat,
     /sidebar-agent/event, /sidebar-tabs* and friends all deleted.
   - The pickSidebarModel router (sonnet vs opus) is gone — the live
     PTY uses whatever model the user's `claude` CLI is configured with.
   - Quick-actions (🧹 Cleanup / 📸 Screenshot / 🍪 Cookies) survive
     in the Terminal toolbar. Cleanup now injects its prompt into the
     live PTY via window.gstackInjectToTerminal — no more
     /sidebar-command POST. The Inspector "Send to Code" action uses
     the same injection path.
   - clear-chat button removed from the footer.
   - sidepanel.js shed ~900 lines of chat polling, optimistic UI,
     stop-agent, etc.

Net diff: -3.4k lines across 16 files. CLAUDE.md, TODOS.md, and
docs/designs/SIDEBAR_MESSAGE_FLOW.md rewritten to match. The sidebar
regression test (browse/test/sidebar-tabs.test.ts) is rewritten as 27
structural assertions locking the new layout — Terminal sole pane,
no chat input, quick-actions in toolbar, eager-connect, MutationObserver
repaint, restart helper.
This commit is contained in:
Garry Tan
2026-04-25 21:03:04 -07:00
parent 0361acfb6a
commit 006dbe19f1
16 changed files with 771 additions and 4229 deletions
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/**
* Layer 3: Sidebar agent round-trip tests.
* Starts server + sidebar-agent together. Mocks the `claude` binary with a shell
* script that outputs canned stream-json. Verifies events flow end-to-end:
* POST /sidebar-command → queue → sidebar-agent → mock claude → events → /sidebar-chat
*/
import { describe, test, expect, beforeAll, afterAll } from 'bun:test';
import { spawn, type Subprocess } from 'bun';
import * as fs from 'fs';
import * as os from 'os';
import * as path from 'path';
let serverProc: Subprocess | null = null;
let agentProc: Subprocess | null = null;
let serverPort: number = 0;
let authToken: string = '';
let tmpDir: string = '';
let stateFile: string = '';
let queueFile: string = '';
let mockBinDir: string = '';
async function api(pathname: string, opts: RequestInit = {}): Promise<Response> {
const headers: Record<string, string> = {
'Content-Type': 'application/json',
...(opts.headers as Record<string, string> || {}),
};
if (!headers['Authorization'] && authToken) {
headers['Authorization'] = `Bearer ${authToken}`;
}
return fetch(`http://127.0.0.1:${serverPort}${pathname}`, { ...opts, headers });
}
async function resetState() {
await api('/sidebar-session/new', { method: 'POST' });
fs.writeFileSync(queueFile, '');
}
async function pollChatUntil(
predicate: (entries: any[]) => boolean,
timeoutMs = 10000,
): Promise<any[]> {
const deadline = Date.now() + timeoutMs;
while (Date.now() < deadline) {
const resp = await api('/sidebar-chat?after=0');
const data = await resp.json();
if (predicate(data.entries)) return data.entries;
await new Promise(r => setTimeout(r, 300));
}
// Return whatever we have on timeout
const resp = await api('/sidebar-chat?after=0');
return (await resp.json()).entries;
}
function writeMockClaude(script: string) {
const mockPath = path.join(mockBinDir, 'claude');
fs.writeFileSync(mockPath, script, { mode: 0o755 });
}
beforeAll(async () => {
tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'sidebar-roundtrip-'));
stateFile = path.join(tmpDir, 'browse.json');
queueFile = path.join(tmpDir, 'sidebar-queue.jsonl');
mockBinDir = path.join(tmpDir, 'bin');
fs.mkdirSync(mockBinDir, { recursive: true });
fs.mkdirSync(path.dirname(queueFile), { recursive: true });
// Write default mock claude that outputs canned events
writeMockClaude(`#!/bin/bash
echo '{"type":"system","session_id":"mock-session-123"}'
echo '{"type":"assistant","message":{"content":[{"type":"text","text":"I can see the page. It looks like a test fixture."}]}}'
echo '{"type":"result","result":"Done."}'
`);
// Start server (no browser)
const serverScript = path.resolve(__dirname, '..', 'src', 'server.ts');
serverProc = spawn(['bun', 'run', serverScript], {
env: {
...process.env,
BROWSE_STATE_FILE: stateFile,
BROWSE_HEADLESS_SKIP: '1',
BROWSE_PORT: '0',
SIDEBAR_QUEUE_PATH: queueFile,
BROWSE_IDLE_TIMEOUT: '300',
},
stdio: ['ignore', 'pipe', 'pipe'],
});
// Wait for server
const deadline = Date.now() + 15000;
while (Date.now() < deadline) {
if (fs.existsSync(stateFile)) {
try {
const state = JSON.parse(fs.readFileSync(stateFile, 'utf-8'));
if (state.port && state.token) {
serverPort = state.port;
authToken = state.token;
break;
}
} catch {}
}
await new Promise(r => setTimeout(r, 100));
}
if (!serverPort) throw new Error('Server did not start in time');
// Start sidebar-agent with mock claude on PATH
const agentScript = path.resolve(__dirname, '..', 'src', 'sidebar-agent.ts');
agentProc = spawn(['bun', 'run', agentScript], {
env: {
...process.env,
PATH: `${mockBinDir}:${process.env.PATH}`,
BROWSE_SERVER_PORT: String(serverPort),
BROWSE_STATE_FILE: stateFile,
SIDEBAR_QUEUE_PATH: queueFile,
SIDEBAR_AGENT_TIMEOUT: '10000',
BROWSE_BIN: 'browse', // doesn't matter, mock claude doesn't use it
},
stdio: ['ignore', 'pipe', 'pipe'],
});
// Give sidebar-agent time to start polling
await new Promise(r => setTimeout(r, 1000));
}, 20000);
afterAll(() => {
if (agentProc) { try { agentProc.kill(); } catch {} }
if (serverProc) { try { serverProc.kill(); } catch {} }
try { fs.rmSync(tmpDir, { recursive: true, force: true }); } catch {}
});
describe('sidebar-agent round-trip', () => {
test('full message round-trip with mock claude', async () => {
await resetState();
// Send a command
const resp = await api('/sidebar-command', {
method: 'POST',
body: JSON.stringify({
message: 'what is on this page?',
activeTabUrl: 'https://example.com/test',
}),
});
expect(resp.status).toBe(200);
// Wait for mock claude to process and events to arrive
const entries = await pollChatUntil(
(entries) => entries.some((e: any) => e.type === 'agent_done'),
15000,
);
// Verify the flow: user message → agent_start → text → agent_done
const userEntry = entries.find((e: any) => e.role === 'user');
expect(userEntry).toBeDefined();
expect(userEntry.message).toBe('what is on this page?');
// The mock claude outputs text — check for any agent text entry
const textEntries = entries.filter((e: any) => e.role === 'agent' && (e.type === 'text' || e.type === 'result'));
expect(textEntries.length).toBeGreaterThan(0);
const doneEntry = entries.find((e: any) => e.type === 'agent_done');
expect(doneEntry).toBeDefined();
// Agent should be back to idle
const session = await (await api('/sidebar-session')).json();
expect(session.agent.status).toBe('idle');
}, 20000);
test('claude crash produces agent_error', async () => {
await resetState();
// Replace mock claude with one that crashes
writeMockClaude(`#!/bin/bash
echo '{"type":"system","session_id":"crash-test"}' >&2
exit 1
`);
await api('/sidebar-command', {
method: 'POST',
body: JSON.stringify({ message: 'crash test' }),
});
// Wait for agent_done (sidebar-agent sends agent_done even on crash via proc.on('close'))
const entries = await pollChatUntil(
(entries) => entries.some((e: any) => e.type === 'agent_done' || e.type === 'agent_error'),
15000,
);
// Agent should recover to idle
const session = await (await api('/sidebar-session')).json();
expect(session.agent.status).toBe('idle');
// Restore working mock
writeMockClaude(`#!/bin/bash
echo '{"type":"assistant","message":{"content":[{"type":"text","text":"recovered"}]}}'
`);
}, 20000);
test('sequential queue drain', async () => {
await resetState();
// Restore working mock
writeMockClaude(`#!/bin/bash
echo '{"type":"assistant","message":{"content":[{"type":"text","text":"response to: '"'"'$*'"'"'"}]}}'
`);
// Send two messages rapidly — first processes, second queues
await api('/sidebar-command', {
method: 'POST',
body: JSON.stringify({ message: 'first message' }),
});
await api('/sidebar-command', {
method: 'POST',
body: JSON.stringify({ message: 'second message' }),
});
// Wait for both to complete (two agent_done events)
const entries = await pollChatUntil(
(entries) => entries.filter((e: any) => e.type === 'agent_done').length >= 2,
20000,
);
// Both user messages should be in chat
const userEntries = entries.filter((e: any) => e.role === 'user');
expect(userEntries.length).toBeGreaterThanOrEqual(2);
}, 25000);
});
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/**
* Tests for sidebar agent queue parsing and inbox writing.
*
* sidebar-agent.ts functions are not exported (it's an entry-point script),
* so we test the same logic inline: JSONL parsing, writeToInbox filesystem
* behavior, and edge cases.
*/
import { describe, test, expect, beforeEach, afterEach } from 'bun:test';
import * as fs from 'fs';
import * as path from 'path';
import * as os from 'os';
// ─── Helpers: replicate sidebar-agent logic for unit testing ──────
/** Parse a single JSONL line — same logic as sidebar-agent poll() */
function parseQueueLine(line: string): any | null {
if (!line.trim()) return null;
try {
const entry = JSON.parse(line);
if (!entry.message && !entry.prompt) return null;
return entry;
} catch {
return null;
}
}
/** Read all valid entries from a JSONL string — same as countLines + readLine loop */
function parseQueueFile(content: string): any[] {
const entries: any[] = [];
const lines = content.split('\n').filter(Boolean);
for (const line of lines) {
const entry = parseQueueLine(line);
if (entry) entries.push(entry);
}
return entries;
}
/** Write to inbox — extracted logic from sidebar-agent.ts writeToInbox() */
function writeToInbox(
gitRoot: string,
message: string,
pageUrl?: string,
sessionId?: string,
): string | null {
if (!gitRoot) return null;
const inboxDir = path.join(gitRoot, '.context', 'sidebar-inbox');
fs.mkdirSync(inboxDir, { recursive: true });
const now = new Date();
const timestamp = now.toISOString().replace(/:/g, '-');
const filename = `${timestamp}-observation.json`;
const tmpFile = path.join(inboxDir, `.${filename}.tmp`);
const finalFile = path.join(inboxDir, filename);
const inboxMessage = {
type: 'observation',
timestamp: now.toISOString(),
page: { url: pageUrl || 'unknown', title: '' },
userMessage: message,
sidebarSessionId: sessionId || 'unknown',
};
fs.writeFileSync(tmpFile, JSON.stringify(inboxMessage, null, 2));
fs.renameSync(tmpFile, finalFile);
return finalFile;
}
/** Shorten paths — same logic as sidebar-agent.ts shorten() */
function shorten(str: string): string {
return str
.replace(/\/Users\/[^/]+/g, '~')
.replace(/\/conductor\/workspaces\/[^/]+\/[^/]+/g, '')
.replace(/\.claude\/skills\/gstack\//g, '')
.replace(/browse\/dist\/browse/g, '$B');
}
/** describeToolCall — replicated from sidebar-agent.ts for unit testing */
function describeToolCall(tool: string, input: any): string {
if (!input) return '';
if (tool === 'Bash' && input.command) {
const cmd = input.command;
const browseMatch = cmd.match(/\$B\s+(\w+)|browse[^\s]*\s+(\w+)/);
if (browseMatch) {
const browseCmd = browseMatch[1] || browseMatch[2];
const args = cmd.split(/\s+/).slice(2).join(' ');
switch (browseCmd) {
case 'goto': return `Opening ${args.replace(/['"]/g, '')}`;
case 'snapshot': return args.includes('-i') ? 'Scanning for interactive elements' : args.includes('-D') ? 'Checking what changed' : 'Taking a snapshot of the page';
case 'screenshot': return `Saving screenshot${args ? ` to ${shorten(args)}` : ''}`;
case 'click': return `Clicking ${args}`;
case 'fill': { const parts = args.split(/\s+/); return `Typing "${parts.slice(1).join(' ')}" into ${parts[0]}`; }
case 'text': return 'Reading page text';
case 'html': return args ? `Reading HTML of ${args}` : 'Reading full page HTML';
case 'links': return 'Finding all links on the page';
case 'forms': return 'Looking for forms';
case 'console': return 'Checking browser console for errors';
case 'network': return 'Checking network requests';
case 'url': return 'Checking current URL';
case 'back': return 'Going back';
case 'forward': return 'Going forward';
case 'reload': return 'Reloading the page';
case 'scroll': return args ? `Scrolling to ${args}` : 'Scrolling down';
case 'wait': return `Waiting for ${args}`;
case 'inspect': return args ? `Inspecting CSS of ${args}` : 'Getting CSS for last picked element';
case 'style': return `Changing CSS: ${args}`;
case 'cleanup': return 'Removing page clutter (ads, popups, banners)';
case 'prettyscreenshot': return 'Taking a clean screenshot';
case 'css': return `Checking CSS property: ${args}`;
case 'is': return `Checking if element is ${args}`;
case 'diff': return `Comparing ${args}`;
case 'responsive': return 'Taking screenshots at mobile, tablet, and desktop sizes';
case 'status': return 'Checking browser status';
case 'tabs': return 'Listing open tabs';
case 'focus': return 'Bringing browser to front';
case 'select': return `Selecting option in ${args}`;
case 'hover': return `Hovering over ${args}`;
case 'viewport': return `Setting viewport to ${args}`;
case 'upload': return `Uploading file to ${args.split(/\s+/)[0]}`;
default: return `Running browse ${browseCmd} ${args}`.trim();
}
}
if (cmd.includes('git ')) return `Running: ${shorten(cmd)}`;
let short = shorten(cmd);
return short.length > 100 ? short.slice(0, 100) + '…' : short;
}
if (tool === 'Read' && input.file_path) return `Reading ${shorten(input.file_path)}`;
if (tool === 'Edit' && input.file_path) return `Editing ${shorten(input.file_path)}`;
if (tool === 'Write' && input.file_path) return `Writing ${shorten(input.file_path)}`;
if (tool === 'Grep' && input.pattern) return `Searching for "${input.pattern}"`;
if (tool === 'Glob' && input.pattern) return `Finding files matching ${input.pattern}`;
try { return shorten(JSON.stringify(input)).slice(0, 80); } catch { return ''; }
}
// ─── Test setup ──────────────────────────────────────────────────
let tmpDir: string;
beforeEach(() => {
tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'sidebar-agent-test-'));
});
afterEach(() => {
fs.rmSync(tmpDir, { recursive: true, force: true });
});
// ─── Queue File Parsing ─────────────────────────────────────────
describe('queue file parsing', () => {
test('valid JSONL line parsed correctly', () => {
const line = JSON.stringify({ message: 'hello', prompt: 'check this', pageUrl: 'https://example.com' });
const entry = parseQueueLine(line);
expect(entry).not.toBeNull();
expect(entry.message).toBe('hello');
expect(entry.prompt).toBe('check this');
expect(entry.pageUrl).toBe('https://example.com');
});
test('malformed JSON line skipped without crash', () => {
const entry = parseQueueLine('this is not json {{{');
expect(entry).toBeNull();
});
test('valid JSON without message or prompt is skipped', () => {
const line = JSON.stringify({ foo: 'bar' });
const entry = parseQueueLine(line);
expect(entry).toBeNull();
});
test('empty file returns no entries', () => {
const entries = parseQueueFile('');
expect(entries).toEqual([]);
});
test('file with blank lines returns no entries', () => {
const entries = parseQueueFile('\n\n\n');
expect(entries).toEqual([]);
});
test('mixed valid and invalid lines', () => {
const content = [
JSON.stringify({ message: 'first' }),
'not json',
JSON.stringify({ unrelated: true }),
JSON.stringify({ message: 'second', prompt: 'do stuff' }),
].join('\n');
const entries = parseQueueFile(content);
expect(entries.length).toBe(2);
expect(entries[0].message).toBe('first');
expect(entries[1].message).toBe('second');
});
});
// ─── writeToInbox ────────────────────────────────────────────────
describe('writeToInbox', () => {
test('creates .context/sidebar-inbox/ directory', () => {
writeToInbox(tmpDir, 'test message');
const inboxDir = path.join(tmpDir, '.context', 'sidebar-inbox');
expect(fs.existsSync(inboxDir)).toBe(true);
expect(fs.statSync(inboxDir).isDirectory()).toBe(true);
});
test('writes valid JSON file', () => {
const filePath = writeToInbox(tmpDir, 'test message', 'https://example.com', 'session-123');
expect(filePath).not.toBeNull();
expect(fs.existsSync(filePath!)).toBe(true);
const data = JSON.parse(fs.readFileSync(filePath!, 'utf-8'));
expect(data.type).toBe('observation');
expect(data.userMessage).toBe('test message');
expect(data.page.url).toBe('https://example.com');
expect(data.sidebarSessionId).toBe('session-123');
expect(data.timestamp).toBeTruthy();
});
test('atomic write — final file exists, no .tmp left', () => {
const filePath = writeToInbox(tmpDir, 'atomic test');
expect(filePath).not.toBeNull();
expect(fs.existsSync(filePath!)).toBe(true);
// Check no .tmp files remain in the inbox directory
const inboxDir = path.join(tmpDir, '.context', 'sidebar-inbox');
const files = fs.readdirSync(inboxDir);
const tmpFiles = files.filter(f => f.endsWith('.tmp'));
expect(tmpFiles.length).toBe(0);
// Final file should end with -observation.json
const jsonFiles = files.filter(f => f.endsWith('-observation.json') && !f.startsWith('.'));
expect(jsonFiles.length).toBe(1);
});
test('handles missing git root gracefully', () => {
const result = writeToInbox('', 'test');
expect(result).toBeNull();
});
test('defaults pageUrl to unknown when not provided', () => {
const filePath = writeToInbox(tmpDir, 'no url provided');
expect(filePath).not.toBeNull();
const data = JSON.parse(fs.readFileSync(filePath!, 'utf-8'));
expect(data.page.url).toBe('unknown');
});
test('defaults sessionId to unknown when not provided', () => {
const filePath = writeToInbox(tmpDir, 'no session');
expect(filePath).not.toBeNull();
const data = JSON.parse(fs.readFileSync(filePath!, 'utf-8'));
expect(data.sidebarSessionId).toBe('unknown');
});
test('multiple writes create separate files', () => {
writeToInbox(tmpDir, 'message 1');
// Tiny delay to ensure different timestamps
const t = Date.now();
while (Date.now() === t) {} // spin until next ms
writeToInbox(tmpDir, 'message 2');
const inboxDir = path.join(tmpDir, '.context', 'sidebar-inbox');
const files = fs.readdirSync(inboxDir).filter(f => f.endsWith('.json') && !f.startsWith('.'));
expect(files.length).toBe(2);
});
});
// ─── describeToolCall (verbose narration) ────────────────────────
describe('describeToolCall', () => {
// Browse navigation commands
test('goto → plain English with URL', () => {
const result = describeToolCall('Bash', { command: '$B goto https://example.com' });
expect(result).toBe('Opening https://example.com');
});
test('goto strips quotes from URL', () => {
const result = describeToolCall('Bash', { command: '$B goto "https://example.com"' });
expect(result).toBe('Opening https://example.com');
});
test('url → checking current URL', () => {
expect(describeToolCall('Bash', { command: '$B url' })).toBe('Checking current URL');
});
test('back/forward/reload → plain English', () => {
expect(describeToolCall('Bash', { command: '$B back' })).toBe('Going back');
expect(describeToolCall('Bash', { command: '$B forward' })).toBe('Going forward');
expect(describeToolCall('Bash', { command: '$B reload' })).toBe('Reloading the page');
});
// Snapshot variants
test('snapshot -i → scanning for interactive elements', () => {
expect(describeToolCall('Bash', { command: '$B snapshot -i' })).toBe('Scanning for interactive elements');
});
test('snapshot -D → checking what changed', () => {
expect(describeToolCall('Bash', { command: '$B snapshot -D' })).toBe('Checking what changed');
});
test('snapshot (plain) → taking a snapshot', () => {
expect(describeToolCall('Bash', { command: '$B snapshot' })).toBe('Taking a snapshot of the page');
});
// Interaction commands
test('click → clicking element', () => {
expect(describeToolCall('Bash', { command: '$B click @e3' })).toBe('Clicking @e3');
});
test('fill → typing into element', () => {
expect(describeToolCall('Bash', { command: '$B fill @e4 "hello world"' })).toBe('Typing ""hello world"" into @e4');
});
test('scroll with selector → scrolling to element', () => {
expect(describeToolCall('Bash', { command: '$B scroll .footer' })).toBe('Scrolling to .footer');
});
test('scroll without args → scrolling down', () => {
expect(describeToolCall('Bash', { command: '$B scroll' })).toBe('Scrolling down');
});
// Reading commands
test('text → reading page text', () => {
expect(describeToolCall('Bash', { command: '$B text' })).toBe('Reading page text');
});
test('html with selector → reading HTML of element', () => {
expect(describeToolCall('Bash', { command: '$B html .header' })).toBe('Reading HTML of .header');
});
test('html without selector → reading full page HTML', () => {
expect(describeToolCall('Bash', { command: '$B html' })).toBe('Reading full page HTML');
});
test('links → finding all links', () => {
expect(describeToolCall('Bash', { command: '$B links' })).toBe('Finding all links on the page');
});
test('console → checking console', () => {
expect(describeToolCall('Bash', { command: '$B console' })).toBe('Checking browser console for errors');
});
// Inspector commands
test('inspect with selector → inspecting CSS', () => {
expect(describeToolCall('Bash', { command: '$B inspect .header' })).toBe('Inspecting CSS of .header');
});
test('inspect without args → getting last picked element', () => {
expect(describeToolCall('Bash', { command: '$B inspect' })).toBe('Getting CSS for last picked element');
});
test('style → changing CSS', () => {
expect(describeToolCall('Bash', { command: '$B style .header color red' })).toBe('Changing CSS: .header color red');
});
test('cleanup → removing page clutter', () => {
expect(describeToolCall('Bash', { command: '$B cleanup --all' })).toBe('Removing page clutter (ads, popups, banners)');
});
// Visual commands
test('screenshot → saving screenshot', () => {
expect(describeToolCall('Bash', { command: '$B screenshot /tmp/shot.png' })).toBe('Saving screenshot to /tmp/shot.png');
});
test('screenshot without path', () => {
expect(describeToolCall('Bash', { command: '$B screenshot' })).toBe('Saving screenshot');
});
test('responsive → multi-size screenshots', () => {
expect(describeToolCall('Bash', { command: '$B responsive' })).toBe('Taking screenshots at mobile, tablet, and desktop sizes');
});
// Non-browse tools
test('Read tool → reading file', () => {
expect(describeToolCall('Read', { file_path: '/Users/foo/project/src/app.ts' })).toBe('Reading ~/project/src/app.ts');
});
test('Grep tool → searching for pattern', () => {
expect(describeToolCall('Grep', { pattern: 'handleClick' })).toBe('Searching for "handleClick"');
});
test('Glob tool → finding files', () => {
expect(describeToolCall('Glob', { pattern: '**/*.tsx' })).toBe('Finding files matching **/*.tsx');
});
test('Edit tool → editing file', () => {
expect(describeToolCall('Edit', { file_path: '/Users/foo/src/main.ts' })).toBe('Editing ~/src/main.ts');
});
// Edge cases
test('null input → empty string', () => {
expect(describeToolCall('Bash', null)).toBe('');
});
test('unknown browse command → generic description', () => {
expect(describeToolCall('Bash', { command: '$B newtab https://foo.com' })).toContain('newtab');
});
test('non-browse bash → shortened command', () => {
expect(describeToolCall('Bash', { command: 'echo hello' })).toBe('echo hello');
});
test('full browse binary path recognized', () => {
const result = describeToolCall('Bash', { command: '/Users/garrytan/.claude/skills/gstack/browse/dist/browse goto https://example.com' });
expect(result).toBe('Opening https://example.com');
});
test('tab command → switching tab', () => {
expect(describeToolCall('Bash', { command: '$B tab 2' })).toContain('tab');
});
});
// ─── Per-tab agent concurrency (source code validation) ──────────
describe('per-tab agent concurrency', () => {
const serverSrc = fs.readFileSync(path.join(__dirname, '..', 'src', 'server.ts'), 'utf-8');
const agentSrc = fs.readFileSync(path.join(__dirname, '..', 'src', 'sidebar-agent.ts'), 'utf-8');
test('server has per-tab agent state map', () => {
expect(serverSrc).toContain('tabAgents');
expect(serverSrc).toContain('TabAgentState');
expect(serverSrc).toContain('getTabAgent');
});
test('server returns per-tab agent status in /sidebar-chat', () => {
expect(serverSrc).toContain('getTabAgentStatus');
expect(serverSrc).toContain('tabAgentStatus');
});
test('spawnClaude accepts forTabId parameter', () => {
const spawnFn = serverSrc.slice(
serverSrc.indexOf('function spawnClaude('),
serverSrc.indexOf('\nfunction ', serverSrc.indexOf('function spawnClaude(') + 1),
);
expect(spawnFn).toContain('forTabId');
expect(spawnFn).toContain('tabState.status');
});
test('sidebar-command endpoint uses per-tab agent state', () => {
expect(serverSrc).toContain('msgTabId');
expect(serverSrc).toContain('tabState.status');
expect(serverSrc).toContain('tabState.queue');
});
test('agent event handler resets per-tab state', () => {
expect(serverSrc).toContain('eventTabId');
expect(serverSrc).toContain('tabState.status = \'idle\'');
});
test('agent event handler processes per-tab queue', () => {
// After agent_done, should process next message from THIS tab's queue
expect(serverSrc).toContain('tabState.queue.length > 0');
expect(serverSrc).toContain('tabState.queue.shift');
});
test('sidebar-agent uses per-tab processing set', () => {
expect(agentSrc).toContain('processingTabs');
expect(agentSrc).not.toContain('isProcessing');
});
test('sidebar-agent sends tabId with all events', () => {
// sendEvent should accept tabId parameter
expect(agentSrc).toContain('async function sendEvent(event: Record<string, any>, tabId?: number)');
// askClaude destructures tabId from queue entry (regex tolerates
// additional fields like `canary` and `pageUrl` from security module).
expect(agentSrc).toMatch(
/const \{[^}]*\bprompt\b[^}]*\bargs\b[^}]*\bstateFile\b[^}]*\bcwd\b[^}]*\btabId\b[^}]*\}/
);
});
test('sidebar-agent allows concurrent agents across tabs', () => {
// poll() should not block globally — it should check per-tab
expect(agentSrc).toContain('processingTabs.has(tid)');
// askClaude should be fire-and-forget (no await blocking the loop)
expect(agentSrc).toContain('askClaude(entry).catch');
});
test('queue entries include tabId', () => {
const spawnFn = serverSrc.slice(
serverSrc.indexOf('function spawnClaude('),
serverSrc.indexOf('\nfunction ', serverSrc.indexOf('function spawnClaude(') + 1),
);
expect(spawnFn).toContain('tabId: agentTabId');
});
test('health check monitors all per-tab agents', () => {
expect(serverSrc).toContain('for (const [tid, state] of tabAgents)');
});
});
describe('BROWSE_TAB tab pinning (cross-tab isolation)', () => {
const serverSrc = fs.readFileSync(path.join(__dirname, '..', 'src', 'server.ts'), 'utf-8');
const agentSrc = fs.readFileSync(path.join(__dirname, '..', 'src', 'sidebar-agent.ts'), 'utf-8');
const cliSrc = fs.readFileSync(path.join(__dirname, '..', 'src', 'cli.ts'), 'utf-8');
test('sidebar-agent passes BROWSE_TAB env var to claude process', () => {
// The env block should include BROWSE_TAB set to the tab ID
expect(agentSrc).toContain('BROWSE_TAB');
expect(agentSrc).toContain('String(tid)');
});
test('CLI reads BROWSE_TAB and sends tabId in command body', () => {
// BROWSE_TAB env var is still honored (sidebar-agent path). After the
// make-pdf refactor, the CLI layer now also accepts --tab-id <N>, with
// the CLI flag taking precedence over the env var. Both resolve to the
// same `tabId` body field.
expect(cliSrc).toContain('process.env.BROWSE_TAB');
expect(cliSrc).toContain('parseInt(envTab, 10)');
});
test('handleCommandInternal accepts tabId from request body', () => {
const handleFn = serverSrc.slice(
serverSrc.indexOf('async function handleCommandInternal('),
serverSrc.indexOf('\n/** HTTP wrapper', serverSrc.indexOf('async function handleCommandInternal(') + 1) > 0
? serverSrc.indexOf('\n/** HTTP wrapper', serverSrc.indexOf('async function handleCommandInternal(') + 1)
: serverSrc.indexOf('\nasync function ', serverSrc.indexOf('async function handleCommandInternal(') + 200),
);
// Should destructure tabId from body
expect(handleFn).toContain('tabId');
// Should save and restore the active tab
expect(handleFn).toContain('savedTabId');
expect(handleFn).toContain('switchTab(tabId');
});
test('handleCommandInternal restores active tab after command (success path)', () => {
// On success, should restore savedTabId without stealing focus
const handleFn = serverSrc.slice(
serverSrc.indexOf('async function handleCommandInternal('),
serverSrc.length,
);
// Count restore calls — should appear in both success and error paths
const restoreCount = (handleFn.match(/switchTab\(savedTabId/g) || []).length;
expect(restoreCount).toBeGreaterThanOrEqual(2); // success + error paths
});
test('handleCommandInternal restores active tab on error path', () => {
// The catch block should also restore
const catchBlock = serverSrc.slice(
serverSrc.indexOf('} catch (err: any) {', serverSrc.indexOf('async function handleCommandInternal(')),
);
expect(catchBlock).toContain('switchTab(savedTabId');
});
test('tab pinning only activates when tabId is provided', () => {
const handleFn = serverSrc.slice(
serverSrc.indexOf('async function handleCommandInternal('),
serverSrc.indexOf('try {', serverSrc.indexOf('async function handleCommandInternal(') + 1),
);
// Should check tabId is not undefined/null before switching
expect(handleFn).toContain('tabId !== undefined');
expect(handleFn).toContain('tabId !== null');
});
test('CLI only sends tabId when it is a valid number', () => {
// Body should conditionally include tabId. Historically that was keyed off
// the BROWSE_TAB env var. After the make-pdf refactor, the CLI also honors
// a --tab-id <N> flag on the CLI itself, so the check is "tabId defined
// AND not NaN" rather than literally inspecting the env var.
expect(cliSrc).toContain('tabId !== undefined && !isNaN(tabId)');
});
});
+204 -81
View File
@@ -1,26 +1,15 @@
/**
* Regression: changing the default sidebar tab to Terminal must NOT break
* the existing Chat path or the debug-tab return-to logic.
* Regression: sidebar layout invariants after the chat-tab rip.
*
* Original /plan-eng-review Issue 3A asked for a Playwright + extension
* E2E test. The codebase doesn't ship Playwright extension launcher
* infrastructure (extension tests here are source-level), so this regression
* is implemented as a structural assertion suite over the extension files.
* That's enough to lock the load-bearing invariants:
* The Chrome side panel used to host two surfaces: Chat (one-shot
* `claude -p` queue) and Terminal (interactive PTY). Chat was ripped
* once the PTY proved out — sidebar-agent.ts is gone, the chat queue
* endpoints are gone, and the primary-tab nav (Terminal | Chat) is
* gone. Terminal is now the sole primary surface.
*
* 1. Terminal is the default-active primary tab.
* 2. Chat exists as a non-active primary tab.
* 3. The xterm assets are loaded.
* 4. The debug-close path no longer hardcodes `tab-chat` (uses the
* activePrimaryPaneId helper that respects whichever primary tab
* the user has selected).
* 5. Manifest declares the ws://127.0.0.1 host permission so MV3
* doesn't block the WebSocket upgrade.
* 6. The chat surface (chat-messages, chat input wiring) still exists
* and was not accidentally deleted alongside the default-tab change.
*
* If a future refactor regresses any of these, this test fails BEFORE the
* change ships.
* This file locks the load-bearing invariants of that layout so a
* future refactor can't silently re-introduce the old surface or break
* the new one.
*/
import { describe, test, expect } from 'bun:test';
@@ -32,84 +21,220 @@ const JS = fs.readFileSync(path.join(import.meta.dir, '../../extension/sidepanel
const TERM_JS = fs.readFileSync(path.join(import.meta.dir, '../../extension/sidepanel-terminal.js'), 'utf-8');
const MANIFEST = JSON.parse(fs.readFileSync(path.join(import.meta.dir, '../../extension/manifest.json'), 'utf-8'));
describe('sidebar tabs regression: Terminal is default, Chat survives', () => {
test('primary tab bar declares Terminal and Chat with Terminal active', () => {
// Terminal is the active button.
expect(HTML).toMatch(/<button[^>]*class="primary-tab active"[^>]*data-pane="terminal"/);
// Chat is a primary tab, present and non-active.
expect(HTML).toMatch(/<button[^>]*class="primary-tab"[^>]*data-pane="chat"/);
describe('sidebar: chat tab + nav are removed, Terminal is sole primary surface', () => {
test('No primary-tab nav element exists', () => {
expect(HTML).not.toContain('class="primary-tabs"');
expect(HTML).not.toContain('data-pane="chat"');
expect(HTML).not.toContain('data-pane="terminal"');
});
test('Terminal pane is active and Chat pane is not active', () => {
// tab-terminal has the .active class on its <main>.
expect(HTML).toMatch(/<main id="tab-terminal" class="tab-content active"/);
// tab-chat is present but NOT active.
expect(HTML).toMatch(/<main id="tab-chat" class="tab-content"(?! active)/);
test('No <main id="tab-chat"> pane', () => {
expect(HTML).not.toMatch(/<main[^>]*id="tab-chat"/);
expect(HTML).not.toContain('id="chat-messages"');
expect(HTML).not.toContain('id="chat-loading"');
expect(HTML).not.toContain('id="chat-welcome"');
});
test('xterm assets are loaded for the Terminal pane', () => {
expect(HTML).toContain('lib/xterm.css');
expect(HTML).toContain('lib/xterm.js');
expect(HTML).toContain('lib/xterm-addon-fit.js');
expect(HTML).toContain('sidepanel-terminal.js');
test('No chat input / send button / experimental banner', () => {
expect(HTML).not.toContain('class="command-bar"');
expect(HTML).not.toContain('id="command-input"');
expect(HTML).not.toContain('id="send-btn"');
expect(HTML).not.toContain('id="stop-agent-btn"');
expect(HTML).not.toContain('id="experimental-banner"');
});
test('chat surface still exists (no accidental deletion)', () => {
// The chat input and chat-messages containers are load-bearing for the
// existing sidebar-agent flow. If the default-tab change accidentally
// removed them, this catches it before users do.
expect(HTML).toContain('id="chat-messages"');
expect(HTML).toContain('id="chat-loading"');
test('No clear-chat button in footer', () => {
expect(HTML).not.toContain('id="clear-chat"');
});
test('debug-close path no longer hardcodes tab-chat', () => {
// Before the Terminal default flip, sidepanel.js had two literal
// `getElementById('tab-chat').classList.add('active')` calls inside the
// debug-close handlers. Both must now go through activePrimaryPaneId()
// so closing debug returns to whichever primary tab is selected.
expect(JS).toContain('function activePrimaryPaneId');
// Old hardcoded form is gone (don't ban the string everywhere — there
// are legitimate references elsewhere in the file).
const debugToggleBlock = JS.slice(
JS.indexOf("debugToggle.addEventListener('click'"),
JS.indexOf("closeDebug.addEventListener('click'"),
);
expect(debugToggleBlock).not.toContain("'tab-chat'");
expect(debugToggleBlock).toContain('activePrimaryPaneId');
test('Terminal pane is .active by default and has the toolbar', () => {
expect(HTML).toMatch(/<main[^>]*id="tab-terminal"[^>]*class="tab-content active"/);
expect(HTML).toContain('id="terminal-toolbar"');
expect(HTML).toContain('id="terminal-restart-now"');
});
test('primary-tab click handler exists and toggles classes', () => {
expect(JS).toContain("querySelectorAll('.primary-tab')");
expect(JS).toContain('aria-selected');
test('Quick-actions buttons (Cleanup / Screenshot / Cookies) survive in the terminal toolbar', () => {
// Garry explicitly wanted these kept after the chat rip — they drive
// browser actions, not chat.
expect(HTML).toContain('id="chat-cleanup-btn"');
expect(HTML).toContain('id="chat-screenshot-btn"');
expect(HTML).toContain('id="chat-cookies-btn"');
// They live inside the terminal toolbar now (siblings of the Restart
// button), not as a separate strip below all panes.
const toolbarStart = HTML.indexOf('id="terminal-toolbar"');
const toolbarEnd = HTML.indexOf('</div>', toolbarStart);
const toolbarBlock = HTML.slice(toolbarStart, toolbarEnd + 6);
expect(toolbarBlock).toContain('id="chat-cleanup-btn"');
expect(toolbarBlock).toContain('id="chat-screenshot-btn"');
expect(toolbarBlock).toContain('id="chat-cookies-btn"');
});
});
describe('sidebar terminal: lazy spawn + auth chain', () => {
test('terminal JS waits for first key to start (lazy-spawn)', () => {
expect(TERM_JS).toContain('function onAnyKey');
expect(TERM_JS).toContain('terminalActive');
expect(TERM_JS).toContain('connect()');
describe('sidepanel.js: chat helpers ripped, terminal-injection helper survives', () => {
test('No primary-tab click handler', () => {
expect(JS).not.toContain("querySelectorAll('.primary-tab')");
expect(JS).not.toContain('activePrimaryPaneId');
});
test('terminal JS does NOT auto-reconnect on close (codex finding #8)', () => {
// Close handler transitions to ENDED and shows a restart button,
// not a reconnect timer.
const closeBlock = TERM_JS.slice(TERM_JS.indexOf("addEventListener('close'"));
expect(closeBlock).toContain('ENDED');
// Forbid bare setTimeout(...connect... patterns inside this file's
// close handler — would indicate auto-reconnect crept back in.
expect(TERM_JS).not.toMatch(/close[\s\S]{0,200}setTimeout\([^)]*connect/);
test('No chat polling, sendMessage, sendChat, stopAgent, or pollTabs', () => {
expect(JS).not.toContain('chatPollInterval');
expect(JS).not.toContain('function sendMessage');
expect(JS).not.toContain('function pollChat');
expect(JS).not.toContain('function pollTabs');
expect(JS).not.toContain('function switchChatTab');
expect(JS).not.toContain('function stopAgent');
expect(JS).not.toContain('function applyChatEnabled');
expect(JS).not.toContain('function showSecurityBanner');
});
test('terminal JS reaches /pty-session with the bootstrap auth token', () => {
expect(TERM_JS).toContain('/pty-session');
expect(TERM_JS).toContain('Bearer ${token}');
expect(TERM_JS).toContain('credentials');
test('Cleanup runs through the live PTY (no /sidebar-command POST)', () => {
// The new Cleanup handler injects the prompt straight into claude's
// PTY via gstackInjectToTerminal. The dead code path was a POST to
// /sidebar-command which kicked off a fresh claude -p subprocess.
const cleanup = JS.slice(JS.indexOf('async function runCleanup'));
expect(cleanup).toContain('window.gstackInjectToTerminal');
expect(cleanup).not.toContain('/sidebar-command');
expect(cleanup).not.toContain('addChatEntry');
});
test('terminal JS opens ws://127.0.0.1 (not wss)', () => {
expect(TERM_JS).toContain('new WebSocket(`ws://127.0.0.1:');
// Origin is implicit (browser sets chrome-extension://<id>); no manual override.
test('Inspector "Send to Code" routes through the live PTY', () => {
const sendBtn = JS.slice(JS.indexOf('inspectorSendBtn.addEventListener'));
expect(sendBtn).toContain('window.gstackInjectToTerminal');
expect(sendBtn).not.toContain("type: 'sidebar-command'");
});
test('updateConnection no longer kicks off chat / tab polling', () => {
const update = JS.slice(JS.indexOf('function updateConnection'), JS.indexOf('function updateConnection') + 1500);
expect(update).not.toContain('chatPollInterval');
expect(update).not.toContain('tabPollInterval');
expect(update).not.toContain('pollChat');
expect(update).not.toContain('pollTabs');
// BUT must still expose the bootstrap globals for sidepanel-terminal.js.
expect(update).toContain('window.gstackServerPort');
expect(update).toContain('window.gstackAuthToken');
});
});
describe('sidepanel-terminal.js: eager auto-connect + injection API', () => {
test('Exposes window.gstackInjectToTerminal for cross-pane use', () => {
expect(TERM_JS).toContain('window.gstackInjectToTerminal');
// Returns false when no live session, true when bytes go out.
const inject = TERM_JS.slice(TERM_JS.indexOf('window.gstackInjectToTerminal'));
expect(inject).toContain('return false');
expect(inject).toContain('return true');
expect(inject).toContain('ws.readyState !== WebSocket.OPEN');
});
test('Auto-connects on init (no keypress required)', () => {
expect(TERM_JS).not.toContain('function onAnyKey');
expect(TERM_JS).not.toContain("addEventListener('keydown'");
expect(TERM_JS).toContain('function tryAutoConnect');
});
test('Repaint hook fires when Terminal pane becomes visible', () => {
// The chat-tab rip removed gstack:primary-tab-changed; we use a
// MutationObserver on #tab-terminal's class attr instead. The
// observer must call repaintIfLive when the .active class returns.
expect(TERM_JS).toContain('MutationObserver');
expect(TERM_JS).toContain("attributeFilter: ['class']");
expect(TERM_JS).toContain('repaintIfLive');
const repaint = TERM_JS.slice(TERM_JS.indexOf('function repaintIfLive'));
expect(repaint).toContain('fitAddon && fitAddon.fit()');
expect(repaint).toContain('term.refresh');
expect(repaint).toContain("type: 'resize'");
});
test('No auto-reconnect on close (Restart is user-initiated)', () => {
const closeOnly = TERM_JS.slice(
TERM_JS.indexOf("ws.addEventListener('close'"),
TERM_JS.indexOf("ws.addEventListener('error'"),
);
expect(closeOnly).not.toContain('setTimeout');
expect(closeOnly).not.toContain('tryAutoConnect');
expect(closeOnly).not.toContain('connect()');
});
test('forceRestart helper closes ws, disposes xterm, returns to IDLE', () => {
expect(TERM_JS).toContain('function forceRestart');
const fn = TERM_JS.slice(TERM_JS.indexOf('function forceRestart'));
expect(fn).toContain('ws && ws.close()');
expect(fn).toContain('term.dispose()');
expect(fn).toContain('STATE.IDLE');
expect(fn).toContain('tryAutoConnect()');
});
test('Both restart buttons (mid-session and ENDED) call forceRestart', () => {
expect(TERM_JS).toContain("els.restart?.addEventListener('click', forceRestart)");
expect(TERM_JS).toContain("els.restartNow?.addEventListener('click', forceRestart)");
});
});
describe('server.ts: chat / sidebar-agent endpoints are gone', () => {
const SERVER_SRC = fs.readFileSync(path.join(import.meta.dir, '../src/server.ts'), 'utf-8');
test('No /sidebar-command, /sidebar-chat, /sidebar-agent/* routes', () => {
expect(SERVER_SRC).not.toMatch(/url\.pathname === ['"]\/sidebar-command['"]/);
expect(SERVER_SRC).not.toMatch(/url\.pathname === ['"]\/sidebar-chat['"]/);
expect(SERVER_SRC).not.toMatch(/url\.pathname\.startsWith\(['"]\/sidebar-agent\//);
expect(SERVER_SRC).not.toMatch(/url\.pathname === ['"]\/sidebar-agent\/event['"]/);
expect(SERVER_SRC).not.toMatch(/url\.pathname === ['"]\/sidebar-tabs['"]/);
expect(SERVER_SRC).not.toMatch(/url\.pathname === ['"]\/sidebar-session['"]/);
});
test('No chat-related state declarations or helpers', () => {
// Allow the symbol names inside the rip-marker comments — but no
// `let`, `const`, `function`, or `interface` declarations of them.
expect(SERVER_SRC).not.toMatch(/^let agentProcess/m);
expect(SERVER_SRC).not.toMatch(/^let agentStatus/m);
expect(SERVER_SRC).not.toMatch(/^let messageQueue/m);
expect(SERVER_SRC).not.toMatch(/^let sidebarSession/m);
expect(SERVER_SRC).not.toMatch(/^const tabAgents/m);
expect(SERVER_SRC).not.toMatch(/^function pickSidebarModel/m);
expect(SERVER_SRC).not.toMatch(/^function processAgentEvent/m);
expect(SERVER_SRC).not.toMatch(/^function killAgent/m);
expect(SERVER_SRC).not.toMatch(/^function addChatEntry/m);
expect(SERVER_SRC).not.toMatch(/^interface ChatEntry/m);
expect(SERVER_SRC).not.toMatch(/^interface SidebarSession/m);
});
test('/health no longer surfaces agentStatus or messageQueue length', () => {
const health = SERVER_SRC.slice(SERVER_SRC.indexOf("url.pathname === '/health'"));
const slice = health.slice(0, 2000);
expect(slice).not.toContain('agentStatus');
expect(slice).not.toContain('messageQueue');
expect(slice).not.toContain('agentStartTime');
// chatEnabled is hardcoded false now (older clients still see the field).
expect(slice).toMatch(/chatEnabled:\s*false/);
// terminalPort survives.
expect(slice).toContain('terminalPort');
});
});
describe('cli.ts: sidebar-agent is no longer spawned', () => {
const CLI_SRC = fs.readFileSync(path.join(import.meta.dir, '../src/cli.ts'), 'utf-8');
test('No Bun.spawn of sidebar-agent.ts', () => {
expect(CLI_SRC).not.toMatch(/Bun\.spawn\(\s*\['bun',\s*'run',\s*\w*[Aa]gent[Ss]cript\][\s\S]{0,300}sidebar-agent/);
// The variable name `agentScript` was for sidebar-agent. After the
// rip there's only termAgentScript. Allow comments to mention the
// history but not active spawn calls.
expect(CLI_SRC).not.toMatch(/^\s*let agentScript = path\.resolve/m);
});
test('Terminal-agent spawn survives', () => {
expect(CLI_SRC).toContain('terminal-agent.ts');
expect(CLI_SRC).toMatch(/Bun\.spawn\(\['bun',\s*'run',\s*termAgentScript\]/);
});
});
describe('files: sidebar-agent.ts and its tests are deleted', () => {
test('browse/src/sidebar-agent.ts is gone', () => {
expect(fs.existsSync(path.join(import.meta.dir, '../src/sidebar-agent.ts'))).toBe(false);
});
test('sidebar-agent test files are gone', () => {
expect(fs.existsSync(path.join(import.meta.dir, 'sidebar-agent.test.ts'))).toBe(false);
expect(fs.existsSync(path.join(import.meta.dir, 'sidebar-agent-roundtrip.test.ts'))).toBe(false);
});
});
@@ -123,8 +248,6 @@ describe('manifest: ws permission + xterm-safe CSP', () => {
});
test('manifest does NOT add unsafe-eval to extension_pages CSP', () => {
// xterm@5 is eval-free (verified at vendor time). If a future xterm
// upgrade requires unsafe-eval, this test fires and forces a decision.
const csp = MANIFEST.content_security_policy;
if (csp && csp.extension_pages) {
expect(csp.extension_pages).not.toContain('unsafe-eval');
+60 -1
View File
@@ -127,7 +127,7 @@ describe('terminal-agent: /ws gates', () => {
});
});
describe('terminal-agent: PTY round-trip via real WebSocket', () => {
describe('terminal-agent: PTY round-trip via real WebSocket (Cookie auth)', () => {
test('binary writes go to PTY stdin, output streams back', async () => {
const cookie = 'rt-token-must-be-at-least-seventeen-chars-long';
const granted = await grantToken(cookie);
@@ -182,6 +182,65 @@ describe('terminal-agent: PTY round-trip via real WebSocket', () => {
await Bun.sleep(200);
});
test('Sec-WebSocket-Protocol auth path: browser-style upgrade with token in protocol', async () => {
// This is the path the actual browser extension takes. Cross-port
// SameSite=Strict cookies don't reliably survive the jump from the
// browse server (port A) to the agent (port B) when initiated from a
// chrome-extension origin, so we send the token via the only auth
// header the browser WebSocket API lets us set: Sec-WebSocket-Protocol.
//
// The browser sends `gstack-pty.<token>` and the agent must:
// 1) strip the gstack-pty. prefix
// 2) validate the token
// 3) ECHO the protocol back in the upgrade response
// Without (3) the browser closes the connection immediately, which
// is the exact bug the original cookie-only implementation hit in
// manual dogfood. This test catches that regression in CI.
const token = 'sec-protocol-token-must-be-at-least-seventeen-chars';
await grantToken(token);
// We exercise the protocol path by raw-handshaking via fetch+Upgrade,
// because Bun's test-client WebSocket constructor doesn't propagate
// `protocols` cleanly when also passed `headers` (the constructor
// detects the third-arg form unreliably). Real browsers (Chromium)
// use the standard protocols arg fine — the server-side handler is
// identical either way, so this test still locks the load-bearing
// invariant: the agent accepts a token via Sec-WebSocket-Protocol
// and echoes the protocol back so a browser would accept the upgrade.
const handshakeKey = 'dGhlIHNhbXBsZSBub25jZQ==';
const resp = await fetch(`http://127.0.0.1:${agentPort}/ws`, {
headers: {
'Connection': 'Upgrade',
'Upgrade': 'websocket',
'Sec-WebSocket-Version': '13',
'Sec-WebSocket-Key': handshakeKey,
'Sec-WebSocket-Protocol': `gstack-pty.${token}`,
'Origin': 'chrome-extension://test-extension-id',
},
});
// 101 Switching Protocols + protocol echoed back = browser would accept.
// 401/403/anything else = browser would close the connection immediately
// (the bug we hit in manual dogfood).
expect(resp.status).toBe(101);
expect(resp.headers.get('upgrade')?.toLowerCase()).toBe('websocket');
expect(resp.headers.get('sec-websocket-protocol')).toBe(`gstack-pty.${token}`);
});
test('Sec-WebSocket-Protocol auth: rejects unknown token even with valid Origin', async () => {
const resp = await fetch(`http://127.0.0.1:${agentPort}/ws`, {
headers: {
'Connection': 'Upgrade',
'Upgrade': 'websocket',
'Sec-WebSocket-Version': '13',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Protocol': 'gstack-pty.never-granted-token',
'Origin': 'chrome-extension://test-extension-id',
},
});
expect(resp.status).toBe(401);
});
test('text frame {type:"resize"} is accepted (no crash, ws stays open)', async () => {
const cookie = 'resize-token-must-be-at-least-seventeen-chars';
await grantToken(cookie);
+23 -4
View File
@@ -122,12 +122,26 @@ describe('Source-level guard: terminal-agent', () => {
expect(wsHandler).toContain('forbidden origin');
});
test('validates gstack_pty cookie against an in-memory token set', () => {
test('validates the session token against an in-memory token set', () => {
const wsHandler = AGENT_SRC.slice(AGENT_SRC.indexOf("if (url.pathname === '/ws')"));
// Two transports: Sec-WebSocket-Protocol (preferred for browsers) and
// Cookie gstack_pty (fallback). Both verify against validTokens.
expect(wsHandler).toContain('sec-websocket-protocol');
expect(wsHandler).toContain('gstack_pty');
expect(wsHandler).toContain('validTokens.has');
});
test('Sec-WebSocket-Protocol auth: strips gstack-pty. prefix and echoes back', () => {
const wsHandler = AGENT_SRC.slice(AGENT_SRC.indexOf("if (url.pathname === '/ws')"));
// Browsers send `Sec-WebSocket-Protocol: gstack-pty.<token>`. The agent
// must strip the prefix before checking validTokens, AND echo the
// protocol back in the upgrade response — without the echo, the
// browser closes the connection immediately.
expect(wsHandler).toContain("'gstack-pty.'");
expect(wsHandler).toContain('Sec-WebSocket-Protocol');
expect(wsHandler).toContain('acceptedProtocol');
});
test('lazy spawn: claude PTY is spawned in message handler, not on upgrade', () => {
// The whole point of lazy-spawn (codex finding #8) is that the WS
// upgrade itself does NOT call spawnClaude. Spawn happens on first
@@ -158,14 +172,19 @@ describe('Source-level guard: terminal-agent', () => {
});
describe('Source-level guard: server.ts /pty-session route', () => {
test('validates AUTH_TOKEN and uses cookie-based grant', () => {
test('validates AUTH_TOKEN, grants over loopback, returns token + Set-Cookie', () => {
const route = SERVER_SRC.slice(SERVER_SRC.indexOf("url.pathname === '/pty-session'"));
// Must check auth before minting.
const beforeMint = route.slice(0, route.indexOf('mintPtySessionToken'));
expect(beforeMint).toContain('validateAuth');
// Must call the loopback grant before responding.
// Must call the loopback grant before responding (otherwise the
// agent's validTokens Set never sees the token and /ws would 401).
expect(route).toContain('grantPtyToken');
// Must Set-Cookie with the minted token.
// Must return the token in the JSON body for the
// Sec-WebSocket-Protocol auth path (cross-port cookies don't survive
// SameSite=Strict from a chrome-extension origin).
expect(route).toContain('ptySessionToken');
// Set-Cookie is kept as a fallback for non-browser callers.
expect(route).toContain('Set-Cookie');
expect(route).toContain('buildPtySetCookie');
});