feat: Gravity Web Phase 1 - CDP remote control dashboard

2026-03-07 18:53:41 +09:00
commit 8020a5b072
13 changed files with 2930 additions and 0 deletions
--- a/server/cdp-client.js
+++ b/server/cdp-client.js
@@ -0,0 +1,277 @@
+/**
+ * CDP Client — Antigravity IDE와 Chrome DevTools Protocol로 통신
+ * 
+ * 채팅 DOM 스크래핑, 메시지 전송, 상태 모니터링
+ */
+
+const CDP = require('chrome-remote-interface');
+
+class CDPClient {
+  constructor(host = 'localhost', port = 9000) {
+    this.host = host;
+    this.port = port;
+    this.client = null;
+    this.connected = false;
+    this.lastChatHTML = '';
+    this.pollInterval = null;
+    this.onChatUpdate = null; // callback(html)
+    this.onDisconnect = null; // callback()
+  }
+
+  /**
+   * CDP 연결 수립
+   */
+  async connect() {
+    try {
+      // CDP 타겟 목록에서 올바른 페이지 찾기
+      const targets = await CDP.List({ host: this.host, port: this.port });
+      
+      // Antigravity 메인 윈도우 타겟 찾기 (type: 'page')
+      const pageTarget = targets.find(t => t.type === 'page' && !t.url.includes('devtools'));
+      
+      if (!pageTarget) {
+        throw new Error('Antigravity 페이지 타겟을 찾을 수 없습니다');
+      }
+
+      this.client = await CDP({
+        host: this.host,
+        port: this.port,
+        target: pageTarget,
+      });
+
+      const { Runtime, DOM, Page } = this.client;
+      
+      await Promise.all([
+        Runtime.enable(),
+        DOM.enable(),
+        Page.enable(),
+      ]);
+
+      this.connected = true;
+
+      // 연결 끊김 감지
+      this.client.on('disconnect', () => {
+        this.connected = false;
+        this.stopPolling();
+        if (this.onDisconnect) this.onDisconnect();
+      });
+
+      console.log(`[CDP] 연결 성공: ${this.host}:${this.port} → ${pageTarget.title}`);
+      return { success: true, title: pageTarget.title };
+    } catch (err) {
+      this.connected = false;
+      console.error(`[CDP] 연결 실패: ${this.host}:${this.port} — ${err.message}`);
+      return { success: false, error: err.message };
+    }
+  }
+
+  /**
+   * 연결 해제
+   */
+  async disconnect() {
+    this.stopPolling();
+    if (this.client) {
+      try {
+        await this.client.close();
+      } catch (e) { /* ignore */ }
+      this.client = null;
+    }
+    this.connected = false;
+  }
+
+  /**
+   * 채팅 영역의 DOM을 스크래핑
+   * 
+   * Antigravity의 채팅 컨테이너를 JS로 탐색하여 HTML 반환
+   * DOM 셀렉터는 실제 Antigravity 버전에 따라 조정 필요
+   */
+  async scrapeChatDOM() {
+    if (!this.connected || !this.client) return null;
+
+    try {
+      const { result } = await this.client.Runtime.evaluate({
+        expression: `
+          (function() {
+            // Antigravity 채팅 컨테이너 셀렉터들 (우선순위 순)
+            const selectors = [
+              '.chat-messages-container',
+              '[class*="chat"][class*="container"]',
+              '[class*="conversation"]',
+              '[class*="messages"]',
+              '.monaco-workbench .part.panel .content',
+            ];
+            
+            for (const sel of selectors) {
+              const el = document.querySelector(sel);
+              if (el) {
+                return el.innerHTML;
+              }
+            }
+            
+            // 폴백: body 전체(디버깅용)
+            return '<!-- chat container not found -->';
+          })()
+        `,
+        returnByValue: true,
+      });
+
+      return result.value || null;
+    } catch (err) {
+      console.error('[CDP] 채팅 스크래핑 오류:', err.message);
+      return null;
+    }
+  }
+
+  /**
+   * Antigravity 채팅 입력창에 메시지를 전송
+   */
+  async sendMessage(text) {
+    if (!this.connected || !this.client) {
+      return { success: false, error: 'CDP 연결 없음' };
+    }
+
+    try {
+      // 1) 입력창 찾기 및 포커스
+      const { result: focusResult } = await this.client.Runtime.evaluate({
+        expression: `
+          (function() {
+            const selectors = [
+              'textarea[class*="chat"]',
+              '[class*="chat"] textarea',
+              '[class*="input"] textarea',
+              'textarea[placeholder]',
+              '.chat-input textarea',
+              '[contenteditable="true"]',
+            ];
+            
+            for (const sel of selectors) {
+              const el = document.querySelector(sel);
+              if (el) {
+                el.focus();
+                return { found: true, tag: el.tagName, sel: sel };
+              }
+            }
+            return { found: false };
+          })()
+        `,
+        returnByValue: true,
+      });
+
+      if (!focusResult.value?.found) {
+        return { success: false, error: '채팅 입력창을 찾을 수 없습니다' };
+      }
+
+      // 2) 텍스트 입력 (clipboardData 방식 - 가장 범용적)
+      await this.client.Runtime.evaluate({
+        expression: `
+          (function() {
+            const el = document.querySelector('${focusResult.value.sel}');
+            if (!el) return;
+            
+            // contenteditable인 경우
+            if (el.contentEditable === 'true') {
+              el.textContent = ${JSON.stringify(text)};
+              el.dispatchEvent(new Event('input', { bubbles: true }));
+            } else {
+              // textarea인 경우 — React setState 호환
+              const nativeInputValueSetter = Object.getOwnPropertyDescriptor(
+                window.HTMLTextAreaElement.prototype, 'value'
+              ).set;
+              nativeInputValueSetter.call(el, ${JSON.stringify(text)});
+              el.dispatchEvent(new Event('input', { bubbles: true }));
+            }
+          })()
+        `,
+        returnByValue: true,
+      });
+
+      // 3) Enter 키 전송
+      await this.client.Input.dispatchKeyEvent({
+        type: 'keyDown',
+        key: 'Enter',
+        code: 'Enter',
+        nativeVirtualKeyCode: 13,
+        windowsVirtualKeyCode: 13,
+      });
+      await this.client.Input.dispatchKeyEvent({
+        type: 'keyUp',
+        key: 'Enter',
+        code: 'Enter',
+        nativeVirtualKeyCode: 13,
+        windowsVirtualKeyCode: 13,
+      });
+
+      console.log(`[CDP] 메시지 전송: "${text.substring(0, 50)}..."`);
+      return { success: true };
+    } catch (err) {
+      console.error('[CDP] 메시지 전송 오류:', err.message);
+      return { success: false, error: err.message };
+    }
+  }
+
+  /**
+   * 채팅 폴링 시작 (1초 간격)
+   */
+  startPolling(intervalMs = 1000) {
+    this.stopPolling();
+    
+    this.pollInterval = setInterval(async () => {
+      if (!this.connected) {
+        this.stopPolling();
+        return;
+      }
+
+      const html = await this.scrapeChatDOM();
+      if (html && html !== this.lastChatHTML) {
+        this.lastChatHTML = html;
+        if (this.onChatUpdate) {
+          this.onChatUpdate(html);
+        }
+      }
+    }, intervalMs);
+
+    console.log(`[CDP] 폴링 시작 (${intervalMs}ms 간격)`);
+  }
+
+  /**
+   * 채팅 폴링 중지
+   */
+  stopPolling() {
+    if (this.pollInterval) {
+      clearInterval(this.pollInterval);
+      this.pollInterval = null;
+    }
+  }
+
+  /**
+   * 현재 페이지 타이틀 가져오기
+   */
+  async getTitle() {
+    if (!this.connected || !this.client) return null;
+    try {
+      const { result } = await this.client.Runtime.evaluate({
+        expression: 'document.title',
+        returnByValue: true,
+      });
+      return result.value;
+    } catch {
+      return null;
+    }
+  }
+
+  /**
+   * 스크린샷 (Phase 2 미리보기용)
+   */
+  async captureScreenshot() {
+    if (!this.connected || !this.client) return null;
+    try {
+      const { data } = await this.client.Page.captureScreenshot({ format: 'jpeg', quality: 60 });
+      return data; // base64
+    } catch (err) {
+      console.error('[CDP] 스크린샷 오류:', err.message);
+      return null;
+    }
+  }
+}
+
+module.exports = CDPClient;
--- a/server/index.js
+++ b/server/index.js
@@ -0,0 +1,262 @@
+/**
+ * Gravity Web Server — Express REST API + WebSocket
+ * 
+ * Antigravity IDE 여러 인스턴스를 CDP로 연결하고
+ * 웹 브라우저에서 세션을 전환하며 채팅할 수 있게 합니다.
+ */
+
+const express = require('express');
+const http = require('http');
+const path = require('path');
+const { WebSocketServer, WebSocket } = require('ws');
+const SessionManager = require('./session-manager');
+
+const PORT = process.env.PORT || 3300;
+const app = express();
+const server = http.createServer(app);
+
+app.use(express.json());
+app.use(express.static(path.join(__dirname, '..', 'public')));
+
+const sessionManager = new SessionManager();
+
+// ─── WebSocket Setup ────────────────────────────────────
+const wss = new WebSocketServer({ server, path: '/ws' });
+
+/** @type {Map<WebSocket, {activeSessionId: string|null}>} */
+const wsClients = new Map();
+
+wss.on('connection', (ws) => {
+    console.log('[WS] 클라이언트 연결');
+    wsClients.set(ws, { activeSessionId: null });
+
+    ws.on('message', async (raw) => {
+        try {
+            const msg = JSON.parse(raw.toString());
+            await handleWsMessage(ws, msg);
+        } catch (err) {
+            ws.send(JSON.stringify({ type: 'error', message: err.message }));
+        }
+    });
+
+    ws.on('close', () => {
+        const state = wsClients.get(ws);
+        if (state?.activeSessionId) {
+            stopSessionPolling(state.activeSessionId);
+        }
+        wsClients.delete(ws);
+        console.log('[WS] 클라이언트 연결 해제');
+    });
+
+    // 초기 세션 목록 전송
+    ws.send(JSON.stringify({
+        type: 'sessions_list',
+        sessions: sessionManager.listSessions(),
+    }));
+});
+
+/**
+ * WebSocket 메시지 핸들러
+ */
+async function handleWsMessage(ws, msg) {
+    const state = wsClients.get(ws);
+
+    switch (msg.type) {
+        case 'switch_session': {
+            // 기존 세션 폴링 중지
+            if (state.activeSessionId) {
+                stopSessionPolling(state.activeSessionId);
+            }
+
+            const session = sessionManager.getSession(msg.sessionId);
+            if (!session) {
+                ws.send(JSON.stringify({ type: 'error', message: '세션을 찾을 수 없습니다' }));
+                return;
+            }
+
+            state.activeSessionId = msg.sessionId;
+
+            // 이 세션의 CDP 폴링 시작
+            startSessionPolling(session, ws);
+
+            ws.send(JSON.stringify({
+                type: 'session_switched',
+                sessionId: msg.sessionId,
+                session: {
+                    id: session.id,
+                    name: session.name,
+                    status: session.status,
+                    title: session.title,
+                },
+            }));
+            break;
+        }
+
+        case 'send_message': {
+            const session = sessionManager.getSession(msg.sessionId || state.activeSessionId);
+            if (!session) {
+                ws.send(JSON.stringify({ type: 'error', message: '활성 세션 없음' }));
+                return;
+            }
+
+            const result = await session.client.sendMessage(msg.text);
+            ws.send(JSON.stringify({
+                type: 'message_sent',
+                sessionId: session.id,
+                ...result,
+            }));
+            break;
+        }
+
+        case 'get_screenshot': {
+            const session = sessionManager.getSession(msg.sessionId || state.activeSessionId);
+            if (!session) {
+                ws.send(JSON.stringify({ type: 'error', message: '활성 세션 없음' }));
+                return;
+            }
+
+            const data = await session.client.captureScreenshot();
+            if (data) {
+                ws.send(JSON.stringify({
+                    type: 'screenshot',
+                    sessionId: session.id,
+                    data: data,
+                }));
+            }
+            break;
+        }
+
+        default:
+            ws.send(JSON.stringify({ type: 'error', message: `알 수 없는 메시지 타입: ${msg.type}` }));
+    }
+}
+
+/**
+ * 특정 세션의 CDP 채팅 폴링을 시작하고 결과를 ws 클라이언트에 전송
+ */
+function startSessionPolling(session, ws) {
+    session.client.onChatUpdate = (html) => {
+        if (ws.readyState === WebSocket.OPEN) {
+            ws.send(JSON.stringify({
+                type: 'chat_update',
+                sessionId: session.id,
+                html: html,
+                timestamp: Date.now(),
+            }));
+        }
+    };
+    session.client.startPolling(1000);
+}
+
+/**
+ * 세션 폴링 중지
+ */
+function stopSessionPolling(sessionId) {
+    const session = sessionManager.getSession(sessionId);
+    if (session) {
+        session.client.stopPolling();
+        session.client.onChatUpdate = null;
+    }
+}
+
+/**
+ * 세션 목록 변경을 모든 WS 클라이언트에 브로드캐스트
+ */
+function broadcastSessions() {
+    const payload = JSON.stringify({
+        type: 'sessions_list',
+        sessions: sessionManager.listSessions(),
+    });
+    for (const [ws] of wsClients) {
+        if (ws.readyState === WebSocket.OPEN) {
+            ws.send(payload);
+        }
+    }
+}
+
+// ─── REST API ───────────────────────────────────────────
+
+app.get('/api/sessions', (req, res) => {
+    res.json(sessionManager.listSessions());
+});
+
+app.post('/api/sessions', async (req, res) => {
+    const { name, host = 'localhost', cdpPort = 9000 } = req.body;
+
+    if (!name) {
+        return res.status(400).json({ error: 'name is required' });
+    }
+
+    const session = await sessionManager.addSession(name, host, cdpPort);
+    broadcastSessions();
+
+    res.status(201).json({
+        id: session.id,
+        name: session.name,
+        host: session.host,
+        cdpPort: session.cdpPort,
+        status: session.status,
+        title: session.title,
+        error: session.error || null,
+    });
+});
+
+app.delete('/api/sessions/:id', async (req, res) => {
+    const removed = await sessionManager.removeSession(req.params.id);
+    if (!removed) {
+        return res.status(404).json({ error: 'Session not found' });
+    }
+    broadcastSessions();
+    res.json({ success: true });
+});
+
+app.post('/api/sessions/:id/reconnect', async (req, res) => {
+    const result = await sessionManager.reconnectSession(req.params.id);
+    broadcastSessions();
+    res.json(result);
+});
+
+app.get('/api/sessions/:id/status', (req, res) => {
+    const session = sessionManager.getSession(req.params.id);
+    if (!session) {
+        return res.status(404).json({ error: 'Session not found' });
+    }
+    res.json({
+        id: session.id,
+        status: session.status,
+        title: session.title,
+    });
+});
+
+// Health
+app.get('/api/health', (req, res) => {
+    res.json({
+        status: 'ok',
+        uptime: process.uptime(),
+        sessions: sessionManager.listSessions().length,
+    });
+});
+
+// SPA 폴백
+app.get('*', (req, res) => {
+    res.sendFile(path.join(__dirname, '..', 'public', 'index.html'));
+});
+
+// ─── Startup ────────────────────────────────────────────
+
+server.listen(PORT, () => {
+    console.log('═'.repeat(50));
+    console.log(`  Gravity Web 서버 시작`);
+    console.log(`  http://localhost:${PORT}`);
+    console.log('═'.repeat(50));
+});
+
+// Graceful shutdown
+process.on('SIGINT', async () => {
+    console.log('\n[Server] 종료 중...');
+    await sessionManager.cleanup();
+    server.close(() => {
+        console.log('[Server] 종료 완료');
+        process.exit(0);
+    });
+});
--- a/server/package-lock.json
+++ b/server/package-lock.json
@@ -0,0 +1,890 @@
+{
+  "name": "gravity-web",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "gravity-web",
+      "version": "1.0.0",
+      "dependencies": {
+        "chrome-remote-interface": "^0.33.2",
+        "express": "^4.21.0",
+        "ws": "^8.18.0"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/array-flatten": {
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+      "license": "MIT",
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+        "on-finished": "~2.4.1",
+        "qs": "~6.14.0",
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+        "type-is": "~1.6.18",
+        "unpipe": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
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+    "node_modules/call-bind-apply-helpers": {
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+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
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+      "license": "MIT",
+      "dependencies": {
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+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
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+      "license": "MIT",
+      "dependencies": {
+        "commander": "2.11.x",
+        "ws": "^7.2.0"
+      },
+      "bin": {
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+          "url": "https://github.com/sponsors/feross"
+        },
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+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
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+        "parseurl": "~1.3.3",
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+    },
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+        "side-channel-weakmap": "^1.0.2"
+      },
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+        "url": "https://github.com/sponsors/ljharb"
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+        "url": "https://github.com/sponsors/ljharb"
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+        "url": "https://github.com/sponsors/ljharb"
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+      "license": "MIT",
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+      "license": "MIT",
+      "engines": {
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+      }
+    },
+    "node_modules/vary": {
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/ws": {
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+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.19.0.tgz",
+      "integrity": "sha512-blAT2mjOEIi0ZzruJfIhb3nps74PRWTCz1IjglWEEpQl5XS/UNama6u2/rjFkDDouqr4L67ry+1aGIALViWjDg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    }
+  }
+}
--- a/server/package.json
+++ b/server/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "gravity-web",
+  "version": "1.0.0",
+  "description": "Antigravity IDE 웹 원격 제어 대시보드",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js",
+    "dev": "node --watch index.js"
+  },
+  "dependencies": {
+    "chrome-remote-interface": "^0.33.2",
+    "express": "^4.21.0",
+    "ws": "^8.18.0"
+  }
+}
--- a/server/session-manager.js
+++ b/server/session-manager.js
@@ -0,0 +1,119 @@
+/**
+ * Session Manager — 다중 Antigravity CDP 세션을 관리
+ */
+
+const CDPClient = require('./cdp-client');
+
+class SessionManager {
+    constructor() {
+        /** @type {Map<string, {id: string, name: string, host: string, cdpPort: number, client: CDPClient, status: string, title: string}>} */
+        this.sessions = new Map();
+        this.nextId = 1;
+    }
+
+    /**
+     * 새 세션 등록 + CDP 연결 시도
+     */
+    async addSession(name, host = 'localhost', cdpPort = 9000) {
+        const id = `s${this.nextId++}`;
+        const client = new CDPClient(host, cdpPort);
+
+        const session = {
+            id,
+            name,
+            host,
+            cdpPort,
+            client,
+            status: 'connecting',
+            title: '',
+            createdAt: new Date().toISOString(),
+        };
+
+        this.sessions.set(id, session);
+
+        // CDP 연결 시도
+        const result = await client.connect();
+        if (result.success) {
+            session.status = 'connected';
+            session.title = result.title || '';
+        } else {
+            session.status = 'error';
+            session.error = result.error;
+        }
+
+        // 연결 끊김 시 상태 업데이트
+        client.onDisconnect = () => {
+            session.status = 'disconnected';
+        };
+
+        return session;
+    }
+
+    /**
+     * 세션 제거 + CDP 연결 해제
+     */
+    async removeSession(id) {
+        const session = this.sessions.get(id);
+        if (!session) return false;
+
+        await session.client.disconnect();
+        this.sessions.delete(id);
+        return true;
+    }
+
+    /**
+     * 세션 조회
+     */
+    getSession(id) {
+        return this.sessions.get(id) || null;
+    }
+
+    /**
+     * 전체 세션 목록 (클라이언트 전송용 직렬화)
+     */
+    listSessions() {
+        return Array.from(this.sessions.values()).map(s => ({
+            id: s.id,
+            name: s.name,
+            host: s.host,
+            cdpPort: s.cdpPort,
+            status: s.status,
+            title: s.title,
+            createdAt: s.createdAt,
+            error: s.error || null,
+        }));
+    }
+
+    /**
+     * 세션 재연결
+     */
+    async reconnectSession(id) {
+        const session = this.sessions.get(id);
+        if (!session) return { success: false, error: 'Session not found' };
+
+        await session.client.disconnect();
+        const result = await session.client.connect();
+
+        if (result.success) {
+            session.status = 'connected';
+            session.title = result.title || '';
+            session.error = null;
+        } else {
+            session.status = 'error';
+            session.error = result.error;
+        }
+
+        return result;
+    }
+
+    /**
+     * 모든 세션 정리
+     */
+    async cleanup() {
+        for (const [id] of this.sessions) {
+            await this.removeSession(id);
+        }
+    }
+}
+
+module.exports = SessionManager;