Files
gravity_control/extension/src/http-bridge.ts

571 lines
28 KiB
TypeScript

/**
* HTTP Bridge Server — Extension Host ↔ Renderer communication.
*
* Extracted from extension.ts to reduce file size.
* Provides an HTTP server that the AG renderer (DOM observer script) uses to:
* - Report detected approval buttons (POST /pending)
* - Poll for Discord responses (GET /response/:rid)
* - Receive click triggers (GET /trigger-click)
* - Deep DOM inspection (GET/POST /deep-inspect*)
*/
import * as fs from 'fs';
import * as path from 'path';
import { WSBridgeClient } from './ws-client';
let lastFilePermissionTime = 0;
// ─── Context interface (shared state from extension.ts) ───
export interface HttpBridgeContext {
bridgePath: string;
projectName: string;
activeSessionId: string;
wsBridge: WSBridgeClient | null;
sessionStalled: boolean;
lastPendingStepIndex: number;
logToFile: (msg: string) => void;
writeChatSnapshot?: (text: string) => void;
}
// ─── Module-level state ───
let observerHttpServer: any = null;
const pendingResponses = new Map<string, { approved: boolean } | null>();
// Click trigger: extension sets this, renderer polls and clicks button
let clickTrigger: { action: 'approve' | 'reject'; timestamp: number } | null = null;
// Deep inspect trigger: curl sets this, renderer picks it up and POSTs results back
let deepInspectRequested = false;
let deepInspectResult: any = null;
let deepInspectWaiters: Array<(data: any) => void> = [];
// ─── Public API ───
/** Set click trigger (called from step-probe when approval needed) */
export function setClickTrigger(action: 'approve' | 'reject') {
clickTrigger = { action, timestamp: Date.now() };
}
/** Get the HTTP bridge server instance */
export function getHttpServer(): any {
return observerHttpServer;
}
/** Derive a deterministic port from project name (range 10000-60000) */
export function getDeterministicPort(name: string): number {
let hash = 0;
for (let i = 0; i < name.length; i++) {
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
}
return 10000 + (Math.abs(hash) % 50000);
}
/**
* Start the HTTP bridge server.
* Returns the port number (0 if failed).
*/
export function startHttpBridge(ctx: HttpBridgeContext, sdk: any): Promise<number> {
return new Promise((resolve) => {
try {
const http = require('http');
const server = http.createServer((req: any, res: any) => {
// CORS headers for renderer fetch()
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS');
res.setHeader('Access-Control-Allow-Headers', 'Content-Type');
if (req.method === 'OPTIONS') { res.writeHead(200); res.end(); return; }
const url = new URL(req.url, `http://127.0.0.1`);
// DIAGNOSTIC: log ALL requests (except noisy polling endpoints)
if (!['/trigger-click', '/deep-inspect-trigger'].includes(url.pathname)) {
ctx.logToFile(`[HTTP-REQ] ${req.method} ${url.pathname}`);
}
// POST /pending — renderer reports a detected approval button
if (req.method === 'POST' && url.pathname === '/pending') {
_handlePending(req, res, ctx);
return;
}
// GET /response/:rid — renderer polls for Discord approval
if (req.method === 'GET' && url.pathname.startsWith('/response/')) {
_handleGetResponse(req, res, url, ctx);
return;
}
// GET /trigger-click — renderer polls to check if extension wants a click
if (req.method === 'GET' && url.pathname === '/trigger-click') {
_handleTriggerClick(res, ctx);
return;
}
// GET /deep-inspect — trigger deep DOM inspection from renderer
if (req.method === 'GET' && url.pathname === '/deep-inspect') {
_handleDeepInspect(res, ctx);
return;
}
// GET /deep-inspect-trigger — renderer polls this
if (req.method === 'GET' && url.pathname === '/deep-inspect-trigger') {
_handleDeepInspectTrigger(res);
return;
}
// POST /chat — renderer posts chat snapshots directly
if (req.method === 'POST' && url.pathname === '/chat') {
_handleChatSnapshot(req, res, ctx);
return;
}
// POST /deep-inspect-result — renderer posts inspection results here
if (req.method === 'POST' && url.pathname === '/deep-inspect-result') {
_handleDeepInspectResult(req, res, ctx);
return;
}
if (req.method === 'POST' && url.pathname === '/dump-html') {
let dumpBody = '';
req.setEncoding('utf8');
req.on('data', (c: string) => dumpBody += c);
req.on('end', () => {
try {
// Save indexed dump for history + latest as dump_html.json
let idx = 1;
try { const parsed = JSON.parse(dumpBody); idx = parsed.dumpIndex || idx; } catch {}
fs.writeFileSync(path.join(ctx.bridgePath, `dump_html_${idx}.json`), dumpBody, 'utf-8');
fs.writeFileSync(path.join(ctx.bridgePath, 'dump_html.json'), dumpBody, 'utf-8');
ctx.logToFile(`[HTTP] DOM dump #${idx} saved (${dumpBody.length} bytes)`);
} catch (e) { }
res.writeHead(200); res.end('ok');
});
return;
}
if (req.method === 'POST' && url.pathname === '/test-rpc') {
let rpcBody = '';
req.setEncoding('utf8');
req.on('data', (c: string) => rpcBody += c);
req.on('end', async () => {
try {
const params = JSON.parse(rpcBody);
const result = await sdk.ls.rawRPC(params.method, params.args || {});
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(typeof result === 'string' ? result : JSON.stringify(result));
} catch (e: any) {
res.writeHead(500); res.end(e.message);
}
});
return;
}
// GET /status — diagnostic endpoint
if (req.method === 'GET' && url.pathname === '/status') {
const { getStepProbeContext } = require('./step-probe');
const probeCtx = getStepProbeContext();
const status = {
projectName: ctx.projectName,
activeSessionId: probeCtx.activeSessionId || ctx.activeSessionId,
lastPendingStepIndex: probeCtx.lastPendingStepIndex,
sessionStalled: probeCtx.sessionStalled,
wsConnected: ctx.wsBridge?.isConnected() ?? false,
clickTrigger: clickTrigger ? { ...clickTrigger, ageMs: Date.now() - clickTrigger.timestamp } : null,
uptime: Math.round(process.uptime()),
timestamp: new Date().toISOString(),
};
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(status, null, 2));
return;
}
// GET /ping — health check
if (url.pathname === '/ping') {
res.writeHead(200); res.end('pong');
return;
}
res.writeHead(404); res.end('not found');
});
// Listen on deterministic port (derived from projectName), fallback to random
let detPort = getDeterministicPort(ctx.projectName);
const tryListen = (targetPort: number) => {
server.listen(targetPort, '127.0.0.1', () => {
const port = server.address().port;
observerHttpServer = server;
ctx.logToFile(`[HTTP] bridge server started on port ${port}`);
// Write port to shared ports JSON (multi-bridge support)
const patcher = (sdk.integration as any)?._patcher;
if (patcher && typeof patcher.getWorkbenchDir === 'function') {
const workbenchDir = patcher.getWorkbenchDir();
const portsFile = path.join(workbenchDir, 'ag-bridge-ports.json');
let portsData: Record<string, number> = {};
try {
if (fs.existsSync(portsFile)) {
portsData = JSON.parse(fs.readFileSync(portsFile, 'utf-8'));
}
} catch { }
portsData[ctx.projectName] = port;
fs.writeFileSync(portsFile, JSON.stringify(portsData), 'utf-8');
ctx.logToFile(`[HTTP] ports JSON updated → ${portsFile} (${ctx.projectName}=${port})`);
}
resolve(port);
});
};
server.on('error', (e: any) => {
if (e.code === 'EADDRINUSE' && detPort > 0) {
ctx.logToFile(`[HTTP] deterministic port ${detPort} in use, trying random...`);
detPort = 0;
const server2 = require('http').createServer(server._events.request);
observerHttpServer = server2;
server2.on('error', (e2: any) => {
ctx.logToFile(`[HTTP] random port also failed: ${e2.message}`);
resolve(0);
});
server2.listen(0, '127.0.0.1', () => {
const port = server2.address().port;
ctx.logToFile(`[HTTP] bridge server started on RANDOM port ${port}`);
resolve(port);
});
return;
}
ctx.logToFile(`[HTTP] server error: ${e.message}`);
resolve(0);
});
tryListen(detPort);
} catch (e: any) {
ctx.logToFile(`[HTTP] server failed: ${e.message}`);
resolve(0);
}
});
}
// ─── Route Handlers (private) ───
function _handlePending(req: any, res: any, ctx: HttpBridgeContext) {
let body = '';
req.setEncoding('utf8');
req.on('data', (c: string) => body += c);
req.on('end', () => {
try {
const data = JSON.parse(body);
// ── v12: Command enrichment FIRST — extract actual command from description ──
// Must run before filters so "Always run" with useful description isn't filtered out
const rawCmd = (data.command || '').trim();
// v15: Strip Material icon names from description BEFORE enrichment
// DOM textContent concatenates icon text (e.g. "content_copy") without separators
const ICON_STRIP_RE = /\b(chevron_right|chevron_left|arrow_drop_down|arrow_drop_up|arrow_right|arrow_left|arrow_forward|arrow_back|expand_more|expand_less|more_horiz|more_vert|content_copy|content_paste|check_circle|check|keyboard_arrow_up|keyboard_arrow_down|keyboard_arrow_left|keyboard_arrow_right|slow_motion_video|open_in_new|alternate_email)\b/g;
const rawDesc = (data.description || '').replace(ICON_STRIP_RE, '').replace(/\s{2,}/g, ' ').trim();
const GENERIC_BTN_RE = /^(?:Always\s*)?(?:Run|Allow|Accept|Approve)$/i;
let enrichedCmd = rawCmd;
let enrichedDesc = rawDesc;
if (GENERIC_BTN_RE.test(rawCmd) && rawDesc.length > 10 && rawDesc !== rawCmd) {
// Extract the actual command from description (often includes terminal prompt)
// Pattern: "…\project_name > actual_command"
const promptMatch = rawDesc.match(/[>»]\s*(.+)/);
if (promptMatch && promptMatch[1].trim().length > 3) {
const extracted = promptMatch[1].trim();
// v16: Validate extracted text is not just a prompt fragment or path
const PROMPT_ONLY_RE = /^.*[>»$#]\s*$/;
const TERMINAL_PROMPT_RE = /^[^\n]*\\[^\\>]+\s*[>»]\s*$/;
if (!PROMPT_ONLY_RE.test(extracted) && !TERMINAL_PROMPT_RE.test(extracted)) {
enrichedCmd = extracted.substring(0, 200);
enrichedDesc = `[${rawCmd}] ${rawDesc}`;
ctx.logToFile(`[HTTP] command enriched: "${rawCmd}" → "${enrichedCmd.substring(0, 60)}"`);
} else {
// Prompt-only extraction — filter
ctx.logToFile(`[HTTP] enrichment skipped (prompt-only): "${rawCmd}" desc="${rawDesc.substring(0, 60)}"`);
ctx.logToFile(`[HTTP] filtered generic+prompt-only: "${rawCmd}"`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true, reason: 'generic_btn_prompt_only' }));
return;
}
} else {
// v16: No prompt marker (> » $ #) found in description — this is terminal OUTPUT, not a command
// Observer extracted stdout text from code block (e.g. "No extension.log found", "Log found: ...")
ctx.logToFile(`[HTTP] filtered terminal output (no prompt marker): "${rawDesc.substring(0, 60)}"`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true, reason: 'terminal_output' }));
return;
}
} else if (GENERIC_BTN_RE.test(rawCmd) && (rawDesc.length <= 10 || rawDesc === rawCmd)) {
// v13: Generic button with no useful description (observer prompt-only context)
ctx.logToFile(`[HTTP] filtered generic button no-context: "${rawCmd}" desc="${rawDesc.substring(0, 30)}"`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true, reason: 'generic_btn_no_context' }));
return;
}
// ── Server-side false positive filter (uses enriched cmd) ──
const cmd = enrichedCmd;
const FALSE_POSITIVE_RE = /^(Proceed|Continue|Open|Close|OK|Yes|No|Save|Undo|Redo|Back|Next|More|Less|Got it|Dismiss)$/i;
if (FALSE_POSITIVE_RE.test(cmd)) {
ctx.logToFile(`[HTTP] filtered false positive: "${cmd}"`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true }));
return;
}
// v14: Server-side junk content filter — CSS, source code, icon glue
// This is the last line of defense regardless of observer version
const JUNK_CONTENT_RE = /(!important|::selection|background-color:|var\(--|font-size:|border-[a-z]+:|padding:|margin:|display:\s|===|!==|\|\||\.\btest\(|\.\bmatch\(|\.\breplace\(|_RE[.\s]|\brawDesc\b|\brawCmd\b|\benrichedCmd\b|\bquerySelector\b|\.code-block|\.code-line|\.line-content|\{\s*--|integration\.build)/;
// v15: ICON_GLUE_RE now also catches standalone icon names (no trailing [a-zA-Z] required)
const ICON_GLUE_RE = /\b(alternate_email|content_copy|content_paste|check_circle|chevron_right|chevron_left|keyboard_arrow|arrow_drop_down|arrow_drop_up|more_horiz|more_vert|expand_more|expand_less)\b/;
// v15: Terminal prompt pattern — catches bare prompts like "…\project >" or "PS C:\path>"
const BARE_PROMPT_RE = /^[^\n]{0,60}[>»$#]\s*$/;
if (JUNK_CONTENT_RE.test(cmd) || ICON_GLUE_RE.test(cmd)) {
ctx.logToFile(`[HTTP] filtered junk content: "${cmd.substring(0, 80)}"`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true, reason: 'junk_content' }));
return;
}
// v15: Final bare prompt filter — catches any enriched cmd that's just a terminal prompt
if (BARE_PROMPT_RE.test(cmd) && cmd.length < 80) {
ctx.logToFile(`[HTTP] filtered bare prompt: "${cmd.substring(0, 80)}"`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true, reason: 'bare_prompt' }));
return;
}
// "Run" button → step_probe handles these with full command detail
// Only filter when step_probe IS actively tracking AND cmd is still generic button text
if (/^(?:Always\s*)?Run\b/i.test(cmd)) {
if (ctx.activeSessionId && (!ctx.sessionStalled || ctx.lastPendingStepIndex >= 0)) {
ctx.logToFile(`[HTTP] filtered "Run" — ${!ctx.sessionStalled ? 'not stalled' : 'step_probe pending exists'} (session=${ctx.activeSessionId.substring(0, 8)})`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true }));
return;
}
// v9: When step_probe has no active session, let DOM observer handle approval
ctx.logToFile(`[HTTP] allowing "Run" — step_probe has no active session`);
}
const rid = data.request_id || Date.now().toString();
const pending: Record<string, any> = {
...data,
request_id: rid,
command: enrichedCmd,
description: enrichedDesc,
conversation_id: ctx.activeSessionId || '',
timestamp: Date.now() / 1000,
status: 'pending',
project_name: ctx.projectName,
auto_detected: true,
source: 'dom_observer',
step_type: data.step_type,
buttons: data.buttons,
step_index: ctx.lastPendingStepIndex >= 0 ? ctx.lastPendingStepIndex : undefined,
};
// v17+: "Always run" auto-approve — click button immediately without Discord roundtrip
// Check rawCmd first, then fall back to scanning the buttons array
// (Observer may detect "Run" first while "Always run" is a sibling button)
let alwaysRunIndex = -1;
if (/^Always\s+run$/i.test(rawCmd)) {
alwaysRunIndex = 0;
} else if (Array.isArray(data.buttons)) {
for (let bi = 0; bi < data.buttons.length; bi++) {
if (/^Always\s+run$/i.test((data.buttons[bi].text || '').trim())) {
alwaysRunIndex = bi;
break;
}
}
}
if (alwaysRunIndex >= 0) {
ctx.logToFile(`[HTTP] AUTO-APPROVE "Always run" (btnIdx=${alwaysRunIndex}): enriched="${enrichedCmd.substring(0, 80)}"`);
// Write response file so observer's pollResponseGroup picks it up and clicks the button
const responseDir = path.join(ctx.bridgePath, 'response');
if (!fs.existsSync(responseDir)) {
fs.mkdirSync(responseDir, { recursive: true });
}
const respPayload = {
request_id: rid,
approved: true,
button_index: alwaysRunIndex,
step_type: data.step_type || 'command',
project_name: ctx.projectName,
};
fs.writeFileSync(
path.join(responseDir, `${rid}.json`),
JSON.stringify(respPayload),
'utf-8'
);
// Notify Discord (non-interactive "자동 승인" embed)
if (ctx.wsBridge && ctx.wsBridge.isConnected()) {
ctx.wsBridge.sendPending({
request_id: rid,
command: enrichedCmd || rawCmd,
description: enrichedDesc,
step_type: pending.step_type,
status: 'auto_approved',
buttons: pending.buttons,
project_name: ctx.projectName,
});
}
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: true, request_id: rid, auto_approved: true }));
return;
}
// File permission: inject multi-choice buttons
const cmdLower = enrichedCmd.toLowerCase();
if (cmdLower.includes('allow') && !pending.buttons) {
// Dedup: skip if another file_permission pending was created within 10s
const nowMs = Date.now();
if (nowMs - lastFilePermissionTime < 10000) {
ctx.logToFile(`[HTTP] filtered duplicate file_permission (${nowMs - lastFilePermissionTime}ms old)`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: false, filtered: true, reason: 'dedup_file_permission' }));
return;
}
lastFilePermissionTime = nowMs;
pending.buttons = [
{ text: 'Allow Once', index: 0 },
{ text: 'Allow This Conversation', index: 1 },
{ text: 'Deny', index: 2 },
];
pending.step_type = 'file_permission';
// Clean description: remove button labels from text
const cleanDesc = enrichedDesc.replace(/Deny|Allow Once|Allow This Conversation/gi, '').trim();
pending.command = `파일 접근 권한${cleanDesc ? ': ' + cleanDesc : ''}`;
}
// WS dispatch
if (ctx.wsBridge && ctx.wsBridge.isConnected()) {
ctx.wsBridge.sendPending({
request_id: rid,
command: pending.command || data.command || '',
description: pending.description || data.description || '',
step_type: pending.step_type,
status: 'pending',
buttons: pending.buttons,
project_name: ctx.projectName,
});
ctx.logToFile(`[HTTP-WS] pending sent via WS: ${rid}`);
}
ctx.logToFile(`[HTTP] pending created: ${rid} cmd="${pending.command || data.command}" btns=${(pending.buttons || data.buttons || []).length} ctx="${(pending.description || data.description || '').substring(0, 80)}"`);
if (data._debug_trail) {
ctx.logToFile(`[HTTP-DIAG] trail: ${data._debug_trail.substring(0, 500)}`);
}
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: true, request_id: rid }));
} catch (e: any) {
ctx.logToFile(`[HTTP] pending error: ${e.message}`);
res.writeHead(400); res.end(JSON.stringify({ error: e.message }));
}
});
}
function _handleGetResponse(_req: any, res: any, url: URL, ctx: HttpBridgeContext) {
const rid = url.pathname.split('/')[2];
const respFile = path.join(ctx.bridgePath, 'response', `${rid}.json`);
if (fs.existsSync(respFile)) {
try {
const data = JSON.parse(fs.readFileSync(respFile, 'utf8'));
ctx.logToFile(`[HTTP] response served to renderer: ${rid} approved=${data.approved}`);
// Delay deletion: processResponseFile (response watcher) may need to read it too.
// The watcher fires with 300ms delay, so 2s is safe.
setTimeout(() => {
try { fs.unlinkSync(respFile); } catch { }
}, 2000);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(data));
} catch {
res.writeHead(200); res.end(JSON.stringify({ waiting: true }));
}
} else {
res.writeHead(200); res.end(JSON.stringify({ waiting: true }));
}
}
function _handleTriggerClick(res: any, ctx: HttpBridgeContext) {
if (clickTrigger && (Date.now() - clickTrigger.timestamp) < 30000) {
const trigger = clickTrigger;
clickTrigger = null; // consume once
ctx.logToFile(`[HTTP] trigger-click consumed: ${trigger.action}`);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ action: trigger.action }));
} else {
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ action: null }));
}
}
function _handleDeepInspect(res: any, ctx: HttpBridgeContext) {
deepInspectRequested = true;
ctx.logToFile('[HTTP] deep-inspect triggered — waiting for renderer result...');
// Wait up to 10s for renderer to POST result
const timeout = setTimeout(() => {
deepInspectWaiters = deepInspectWaiters.filter(w => w !== waiter);
if (deepInspectResult) {
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(deepInspectResult));
} else {
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ status: 'timeout', message: 'Renderer did not respond in 10s. Is the v3 script loaded?' }));
}
}, 10000);
const waiter = (data: any) => {
clearTimeout(timeout);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(data));
};
deepInspectWaiters.push(waiter);
}
function _handleDeepInspectTrigger(res: any) {
const requested = deepInspectRequested;
deepInspectRequested = false;
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ inspect: requested }));
}
function _handleDeepInspectResult(req: any, res: any, ctx: HttpBridgeContext) {
let body = '';
req.setEncoding('utf8');
req.on('data', (c: string) => body += c);
req.on('end', () => {
try {
const data = JSON.parse(body);
deepInspectResult = data;
ctx.logToFile(`[HTTP] deep-inspect result received (${body.length} bytes)`);
const inspectFile = path.join(ctx.bridgePath, 'deep-inspect-result.json');
fs.writeFileSync(inspectFile, JSON.stringify(data, null, 2));
const waiters = [...deepInspectWaiters];
deepInspectWaiters = [];
waiters.forEach(w => w(data));
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: true }));
} catch (e: any) {
ctx.logToFile(`[HTTP] deep-inspect-result parse error: ${e.message}`);
res.writeHead(400); res.end(JSON.stringify({ error: e.message }));
}
});
}
function _handleChatSnapshot(req: any, res: any, ctx: HttpBridgeContext) {
let body = '';
req.setEncoding('utf8');
req.on('data', (c: string) => body += c);
req.on('end', () => {
try {
const data = JSON.parse(body);
if (data.text && typeof ctx.writeChatSnapshot === 'function') {
const isUser = data.role === 'user';
const prefix = isUser ? '🧑‍💻 **[DOM 추출] 사용자 요청**' : '💬 **[DOM 추출] AI 응답**';
ctx.writeChatSnapshot(`${prefix}\n\n${data.text}`);
ctx.logToFile(`[HTTP] chat snapshot written (${data.text.length} chars, role: ${data.role || 'bot'})`);
}
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ok: true }));
} catch (e: any) {
ctx.logToFile(`[HTTP] chat parse error: ${e.message}`);
res.writeHead(400); res.end(JSON.stringify({ error: e.message }));
}
});
}