Refactor index.js for improved readability and consistency

- Standardized indentation and formatting in the request configuration object.
- Enhanced comments for clarity in the ProtocolOverWSHandler and HandleTCPOutBound functions.
- Minor updates to README.md for better structure and clarity in usage examples and configuration notes.

Author: 6Kmfi6HP

CLAUDE.md

@@ -0,0 +1,79 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+EDtunnel is a Cloudflare Worker/Pages-based VLESS proxy tool that implements WebSocket transport protocol for tunneling traffic. It runs on Cloudflare's serverless infrastructure and provides a web-based proxy service with multi-protocol support.
+
+## Core Architecture
+
+### Main Files
+
+- **`index.js`** - Main source code (1517 lines) containing all functionality
+- **`_worker.js`** - Obfuscated production version for deployment (462KB)
+- **`wrangler.toml`** - Cloudflare Worker deployment configuration
+
+### Key Components
+
+- **Request routing system** with path-based dispatch (`/cf`, `/{userID}`, `/sub/{userID}`, etc.)
+- **VLESS protocol over WebSocket** transport implementation
+- **Multi-UUID authentication** with comma-separated configuration
+- **SOCKS5 proxy integration** with authentication support
+- **Subscription generation** for VLESS links and Clash configurations
+- **DNS query handling** over UDP with outbound TCP connections
+
+## Development Commands
+
+```bash
+# Local development
+npm run dev          # Development with Wrangler
+npm run dev-local    # Local development with index.js
+
+# Production deployment
+npm run build        # Dry-run deployment check
+npm run deploy       # Deploy to Cloudflare Workers
+npm run obfuscate    # Obfuscate index.js → _worker.js
+```
+
+## Configuration
+
+The application uses environment variables for configuration:
+
+- **UUID** - User authentication (supports comma-separated multiple UUIDs)
+- **PROXYIP** - Proxy server addresses (comma-separated)
+- **SOCKS5** - SOCKS5 proxy configuration with auth
+- **SOCKS5_RELAY** - SOCKS5 relay endpoints
+
+Configuration can be overridden via URL query parameters: `proxyip`, `socks5`, `socks5_relay`.
+
+## Architecture Patterns
+
+### Request Flow
+
+1. **Main handler** processes all incoming requests
+2. **Route dispatch** based on URL path patterns
+3. **WebSocket upgrade** for protocol tunneling
+4. **Environment/query parameter** configuration resolution
+5. **Multi-proxy load balancing** with random selection
+
+### Protocol Implementation
+
+- **VLESS over WebSocket** as primary transport
+- **Base64 encoding/decoding** for parameter handling
+- **UUID validation** and multi-user support
+- **DNS resolution** with fallback mechanisms
+- **TCP connection management** with retry logic
+
+## Deployment Options
+
+1. **Cloudflare Workers** - Direct serverless deployment
+2. **Cloudflare Pages** - Static site with Functions integration
+3. **GitHub integration** - One-click deployment support
+
+## Security Features
+
+- **JavaScript obfuscation** pipeline using `javascript-obfuscator`
+- **UUID-based authentication** system
+- **TLS encryption** through Cloudflare infrastructure
+- **Environment variable protection** for sensitive configuration

README.md

@@ -72,24 +72,27 @@ You can use URL query parameters to directly override environment variable confi
 > **安全说明**: UUID 必须通过环境变量或配置文件设置，不能通过 URL 参数设置，以防止未授权修改用户身份。  
 > **Security Note**: UUID must be set via environment variables or configuration files, not through URL parameters, to prevent unauthorized identity modifications.
 
-#### 使用示例 | Usage Examples:
+#### 使用示例 | Usage Examples
 
 1. 临时更改代理IP | Temporarily change proxy IP:
+
    ```
    https://your-domain.workers.dev/?proxyip=another-proxy-ip:port
    ```
 
 2. 组合多个参数 | Combine multiple parameters:
+
    ```
    https://your-domain.workers.dev/?proxyip=1.1.1.1:443&socks5_relay=true
    ```
 
 3. 应用于特定路径 | Apply to specific paths:
+
    ```
    https://your-domain.workers.dev/sub/your-uuid?proxyip=1.1.1.1:443
    ```
 
-#### 特性说明 | Feature Notes:
+#### 特性说明 | Feature Notes
 
 - 优先级：URL参数 > 环境变量 > 默认值
 - 临时性：这些更改仅对当前请求有效，不会永久修改配置
@@ -101,7 +104,7 @@ You can use URL query parameters to directly override environment variable confi
 - Combinable: Multiple parameters can be combined for complex configuration adjustments
 - Use cases: Quick testing, temporary configuration switching, dynamic calls from third-party systems
 
-#### URL格式注意事项 | URL Format Notes:
+#### URL格式注意事项 | URL Format Notes
 
 - 确保查询参数使用正确的格式: `?参数名=值`。问号 `?` 不应被URL编码（`%3F`）。
 - 如果您看到像 `/%3Fproxyip=value` 这样的URL，这不会正确工作，应改为 `/?proxyip=value`。
@@ -124,6 +127,7 @@ Note: Proxy IPs with ports may not work on HTTP-only Cloudflare sites.
 ### UUID 配置方法 | UUID Configuration
 
 #### 方法一 | Method 1
+
 在 `wrangler.toml` 文件中设置（不推荐在公共仓库中使用）
 Set in `wrangler.toml` file (not recommended for public repositories)
 
@@ -133,6 +137,7 @@ UUID = "your-uuid-here"
 ```
 
 #### 方法二 | Method 2
+
 在 Cloudflare Dashboard 的环境变量中设置（推荐方式）
 Set in Cloudflare Dashboard environment variables (recommended method)
 
@@ -142,6 +147,7 @@ Set in Cloudflare Dashboard environment variables (recommended method)
 All multiple configurations MUST use English comma(,) as separator, NOT Chinese comma(，)
 
 ✅ 正确示例 | Correct Examples:
+
 ```bash
 # UUID多个配置 | Multiple UUID
 UUID=uuid1,uuid2,uuid3
@@ -154,6 +160,7 @@ PROXYIP=1.1.1.1:443,2.2.2.2:443
 ```
 
 ❌ 错误示例 | Wrong Examples:
+
 ```bash
 # 错误：使用中文逗号 | Wrong: Using Chinese comma
 UUID=uuid1，uuid2，uuid3
@@ -167,6 +174,7 @@ SOCKS5=192.168.1.1:1080，192.168.1.2:1080
 ### 自动配置订阅 | Auto Configuration Subscribe
 
 使用以下链接获取自动配置 | Use the following link for auto configuration:
+
 ```
 https://sub.xf.free.hr/auto
 ```
@@ -185,11 +193,13 @@ https://sub.xf.free.hr/auto
 您可以通过以下方式配置多个UUID | You can configure multiple UUIDs in these ways:
 
 1. 环境变量方式 | Via environment variables:
+
    ```
    UUID=uuid1,uuid2,uuid3
    ```
 
 2. 配置文件方式 | Via configuration file:
+
    ```toml
    [vars]
    UUID = "uuid1,uuid2,uuid3"
@@ -198,13 +208,15 @@ https://sub.xf.free.hr/auto
 ### SOCKS5代理配置 | SOCKS5 Proxy Configuration
 
 支持以下格式 | Supports the following formats:
+
 - 基础格式 | Basic format: `host:port`
 - 认证格式 | Authentication format: `username:password@host:port`
 - 多代理格式（使用英文逗号分隔）| Multiple proxies (separated by English comma): `proxy1,proxy2,proxy3`
 
-#### 配置示例 | Configuration Examples:
+#### 配置示例 | Configuration Examples
 
 1. 单个代理 | Single Proxy:
+
 ```bash
 # 基础格式 | Basic format
 SOCKS5=192.168.1.1:1080
@@ -214,6 +226,7 @@ SOCKS5=user:pass@192.168.1.1:1080
 ```
 
 2. 多个代理（使用英文逗号分隔）| Multiple Proxies (separated by English comma):
+
 ```bash
 # 多个基础代理 | Multiple basic proxies
 SOCKS5=192.168.1.1:1080,192.168.1.2:1080,192.168.1.3:1080
@@ -237,11 +250,13 @@ When multiple proxies are configured, the system will automatically perform load
 #### SOCKS5_RELAY 设置 | SOCKS5_RELAY Settings
 
 启用 SOCKS5 全局转发 | Enable SOCKS5 global relay:
+
 ```bash
 SOCKS5_RELAY=true
 ```
 
 注意事项 | Notes:
+
 - 确保代理服务器稳定可用 | Ensure proxy servers are stable and available
 - 建议使用私有代理以提高安全性 | Recommend using private proxies for better security
 - 多代理配置时使用英文逗号分隔 | Use commas to separate multiple proxies
@@ -262,10 +277,12 @@ SOCKS5_RELAY=true
 ## 🔧 环境变量设置 | Environment Variable Settings
 
 ### Workers.dev 设置 | Workers.dev Settings
+
 在 Workers 设置页面配置环境变量 | Configure environment variables in Workers settings page
 ![workers](image/image-1.png)
 
 ### Pages.dev 设置 | Pages.dev Settings
+
 在 Pages 设置页面配置环境变量 | Configure environment variables in Pages settings page
 ![pages](image/image-2.png)
 

index.js

@@ -67,17 +67,17 @@ export default {
 		try {
 			const { UUID, PROXYIP, SOCKS5, SOCKS5_RELAY } = env;
 			const url = new URL(request.url);
-			
-            // 为当前请求创建配置副本，避免修改全局变量
-            const requestConfig = {
-                userID: UUID || userID,
-                socks5Address: SOCKS5 || socks5Address,
-                socks5Relay: SOCKS5_RELAY === 'true' || socks5Relay,
-                proxyIP: null,
-                proxyPort: null,
-                enableSocks: false,
-                parsedSocks5Address: {}
-            };
+
+			// 为当前请求创建配置副本，避免修改全局变量
+			const requestConfig = {
+				userID: UUID || userID,
+				socks5Address: SOCKS5 || socks5Address,
+				socks5Relay: SOCKS5_RELAY === 'true' || socks5Relay,
+				proxyIP: null,
+				proxyPort: null,
+				enableSocks: false,
+				parsedSocks5Address: {}
+			};
 
 			// 获取正常URL参数
 			let urlPROXYIP = url.searchParams.get('proxyip');
@@ -146,9 +146,9 @@ export default {
 			const host = request.headers.get('Host');
 			const requestedPath = url.pathname.substring(1); // Remove leading slash
 			const matchingUserID = userIDs.length === 1 ?
-				(requestedPath === userIDs[0] || 
-				 requestedPath === `sub/${userIDs[0]}` || 
-				 requestedPath === `bestip/${userIDs[0]}` ? userIDs[0] : null) :
+				(requestedPath === userIDs[0] ||
+					requestedPath === `sub/${userIDs[0]}` ||
+					requestedPath === `bestip/${userIDs[0]}` ? userIDs[0] : null) :
 				userIDs.find(id => {
 					const patterns = [id, `sub/${id}`, `bestip/${id}`];
 					return patterns.some(pattern => requestedPath.startsWith(pattern));
@@ -454,18 +454,18 @@ async function handleDefaultPath(url, request) {
  * @returns {Promise<Response>} WebSocket response
  */
 async function ProtocolOverWSHandler(request, config = null) {
-    // 如果没有传入配置，使用全局配置
-    if (!config) {
-        config = {
-            userID,
-            socks5Address,
-            socks5Relay,
-            proxyIP,
-            proxyPort,
-            enableSocks,
-            parsedSocks5Address
-        };
-    }
+	// 如果没有传入配置，使用全局配置
+	if (!config) {
+		config = {
+			userID,
+			socks5Address,
+			socks5Relay,
+			proxyIP,
+			proxyPort,
+			enableSocks,
+			parsedSocks5Address
+		};
+	}
 
 	/** @type {import("@cloudflare/workers-types").WebSocket[]} */
 	// @ts-ignore
@@ -568,18 +568,18 @@ async function ProtocolOverWSHandler(request, config = null) {
  * @param {Object} config - The configuration for this request
  */
 async function HandleTCPOutBound(remoteSocket, addressType, addressRemote, portRemote, rawClientData, webSocket, protocolResponseHeader, log, config = null) {
-    // 如果没有传入配置，使用全局配置
-    if (!config) {
-        config = {
-            userID,
-            socks5Address,
-            socks5Relay,
-            proxyIP,
-            proxyPort,
-            enableSocks,
-            parsedSocks5Address
-        };
-    }
+	// 如果没有传入配置，使用全局配置
+	if (!config) {
+		config = {
+			userID,
+			socks5Address,
+			socks5Relay,
+			proxyIP,
+			proxyPort,
+			enableSocks,
+			parsedSocks5Address
+		};
+	}
 
 	async function connectAndWrite(address, port, socks = false) {
 		/** @type {import("@cloudflare/workers-types").Socket} */
@@ -960,7 +960,7 @@ async function handleDNSQuery(udpChunk, webSocket, protocolResponseHeader, log)
 async function socks5Connect(addressType, addressRemote, portRemote, log, parsedSocks5Addr = null) {
 	// 如果没有传入解析的SOCKS5地址，使用全局的
 	const { username, password, hostname, port } = parsedSocks5Addr || parsedSocks5Address;
-	
+
 	// Connect to the SOCKS server
 	const socket = connect({
 		hostname,
@@ -1506,7 +1506,7 @@ function parseEncodedQueryParams(pathname) {
 		if (encodedParamsMatch) {
 			const encodedParams = encodedParamsMatch[1];
 			const paramPairs = encodedParams.split('&');
-			
+
 			for (const pair of paramPairs) {
 				const [key, value] = pair.split('=');
 				if (value) params[key] = decodeURIComponent(value);