jackwener
b2fa7daf57
Architecture: - Micro-daemon (HTTP + WebSocket bridge, ~190 lines, auto-start/idle-exit) - Chrome MV3 Extension using chrome.debugger CDP (10KB build) - 5 protocol actions: exec, navigate, tabs, cookies, screenshot - All DOM ops via JS evaluate — no extension update needed for new features Key features: - CDP Runtime.evaluate for JS execution in page context - Tab management, cookie access via Chrome APIs - Auto-start daemon on cold boot, idle auto-exit (5min) - Minimal permissions: debugger, tabs, cookies, activeTab, alarms Tested: zhihu hot (14.3s), twitter timeline (9.3s)
90 lines
2.2 KiB
TypeScript
90 lines
2.2 KiB
TypeScript
/**
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* HTTP client for communicating with the opencli daemon.
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*
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* Provides a typed send() function that posts a Command and returns a Result.
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*/
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const DAEMON_PORT = parseInt(process.env.OPENCLI_DAEMON_PORT ?? '19825', 10);
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const DAEMON_URL = `http://127.0.0.1:${DAEMON_PORT}`;
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let _idCounter = 0;
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function generateId(): string {
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return `cmd_${Date.now()}_${++_idCounter}`;
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}
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export interface DaemonCommand {
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id: string;
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action: 'exec' | 'navigate' | 'tabs' | 'cookies';
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tabId?: number;
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code?: string;
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url?: string;
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op?: string;
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index?: number;
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domain?: string;
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}
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export interface DaemonResult {
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id: string;
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ok: boolean;
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data?: unknown;
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error?: string;
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}
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/**
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* Check if daemon is running.
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*/
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export async function isDaemonRunning(): Promise<boolean> {
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try {
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const controller = new AbortController();
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const timer = setTimeout(() => controller.abort(), 2000);
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const res = await fetch(`${DAEMON_URL}/status`, { signal: controller.signal });
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clearTimeout(timer);
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return res.ok;
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} catch {
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return false;
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}
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}
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/**
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* Check if daemon is running AND the extension is connected.
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*/
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export async function isExtensionConnected(): Promise<boolean> {
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try {
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const controller = new AbortController();
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const timer = setTimeout(() => controller.abort(), 2000);
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const res = await fetch(`${DAEMON_URL}/status`, { signal: controller.signal });
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clearTimeout(timer);
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if (!res.ok) return false;
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const data = await res.json() as { extensionConnected?: boolean };
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return !!data.extensionConnected;
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} catch {
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return false;
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}
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}
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/**
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* Send a command to the daemon and wait for a result.
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*/
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export async function sendCommand(
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action: DaemonCommand['action'],
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params: Omit<DaemonCommand, 'id' | 'action'> = {},
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): Promise<unknown> {
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const id = generateId();
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const command: DaemonCommand = { id, action, ...params };
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const res = await fetch(`${DAEMON_URL}/command`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify(command),
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});
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const result = (await res.json()) as DaemonResult;
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if (!result.ok) {
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throw new Error(result.error ?? 'Daemon command failed');
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}
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return result.data;
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}
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