liuq
/
simple_navigation_page


			
				
					
						
						
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							import express from 'express';
import cors from 'cors';
import axios from 'axios';
import nodeRSA from 'node-rsa';
import cookieParser from 'cookie-parser';
import { readFileSync } from 'fs';
import { fileURLToPath } from 'url';
import { dirname, join } from 'path';

// node-rsa 是 CommonJS 模块，需要使用默认导入
const NodeRSA = nodeRSA;

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

const app = express();
const PORT = process.env.PORT || 8889;

// 中间件
app.use(cors({
  origin: true,
  credentials: true
}));
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(cookieParser());

// 请求日志中间件（用于调试）
app.use((req, res, next) => {
  console.log(`[请求] ${req.method} ${req.path} - ${new Date().toISOString()}`);
  next();
});

// 加载自动登录配置
let autoLoginConfig = {};
try {
  const configPath = join(__dirname, 'auto-login-config.json');
  console.log('正在加载自动登录配置文件:', configPath);
  const configData = readFileSync(configPath, 'utf-8');
  autoLoginConfig = JSON.parse(configData);
  console.log('✓ 已加载自动登录配置');
  console.log('  配置的网站数量:', Object.keys(autoLoginConfig).length);
  console.log('  网站列表:', Object.keys(autoLoginConfig).join(', '));
  Object.keys(autoLoginConfig).forEach(siteId => {
    const site = autoLoginConfig[siteId];
    console.log(`  - ${siteId}: ${site.name} (${site.loginMethod})`);
  });
} catch (error) {
  console.error('✗ 加载自动登录配置失败:', error.message);
  console.error('  错误堆栈:', error.stack);
  console.log('将使用默认配置');
}

// RSA 加密函数
function encryptWithRSA(text, publicKey) {
  const key = new NodeRSA(publicKey);
  return key.encrypt(text, 'base64');
}

// 解析 Cookie
function parseCookies(setCookieHeaders) {
  return setCookieHeaders.map(cookie => {
    const match = cookie.match(/^([^=]+)=([^;]+)/);
    if (match) {
      const name = match[1];
      const value = match[2];
      
      // 提取其他属性
      const pathMatch = cookie.match(/Path=([^;]+)/);
      const expiresMatch = cookie.match(/Expires=([^;]+)/);
      const maxAgeMatch = cookie.match(/Max-Age=([^;]+)/);
      const httpOnlyMatch = cookie.match(/HttpOnly/);
      const secureMatch = cookie.match(/Secure/);
      const sameSiteMatch = cookie.match(/SameSite=([^;]+)/);
      
      return {
        name,
        value,
        path: pathMatch ? pathMatch[1] : '/',
        expires: expiresMatch ? expiresMatch[1] : null,
        maxAge: maxAgeMatch ? maxAgeMatch[1] : null,
        httpOnly: !!httpOnlyMatch,
        secure: !!secureMatch,
        sameSite: sameSiteMatch ? sameSiteMatch[1] : null
      };
    }
    return null;
  }).filter(Boolean);
}

// 生成跳转 HTML
function generateRedirectHTML(cookieData, targetHost, targetDomain, requestId = '') {
  return `
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>自动登录中...</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        .loading {
            text-align: center;
        }
        .spinner {
            border: 4px solid #f3f3f3;
            border-top: 4px solid #3498db;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            animation: spin 1s linear infinite;
            margin: 0 auto 20px;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        .message {
            color: #333;
            font-size: 18px;
        }
    </style>
</head>
<body>
    <div class="loading">
        <div class="spinner"></div>
        <div class="message">正在自动登录，请稍候...</div>
    </div>
    <iframe id="cookieFrame" style="display:none;"></iframe>
    <script>
        (function() {
            const requestId = '${requestId}';
            const cookies = ${JSON.stringify(cookieData)};
            const targetUrl = 'http://${targetHost}/';
            const targetDomain = '${targetDomain}';
            
            console.log('========================================');
            console.log('[浏览器端] 自动登录脚本开始执行');
            console.log('[浏览器端] 请求ID:', requestId);
            console.log('[浏览器端] 目标URL:', targetUrl);
            console.log('[浏览器端] 目标域名:', targetDomain);
            console.log('[浏览器端] Cookie 数量:', cookies.length);
            console.log('[浏览器端] Cookie 详情:', cookies);
            
            // 方法1: 尝试直接设置 Cookie（可能因为跨域限制而失败）
            console.log('[浏览器端] 开始尝试设置 Cookie...');
            let successCount = 0;
            let failCount = 0;
            
            cookies.forEach(function(cookie) {
                try {
                    // 构建 Cookie 字符串
                    let cookieStr = cookie.name + '=' + cookie.value;
                    cookieStr += '; path=' + cookie.path;
                    if (cookie.maxAge) {
                        cookieStr += '; max-age=' + cookie.maxAge;
                    }
                    if (cookie.expires) {
                        cookieStr += '; expires=' + cookie.expires;
                    }
                    if (cookie.secure) {
                        cookieStr += '; secure';
                    }
                    if (cookie.sameSite) {
                        cookieStr += '; samesite=' + cookie.sameSite;
                    }
                    // 注意：Domain 属性无法通过 JavaScript 设置跨域 Cookie
                    // 但我们可以尝试设置（浏览器会忽略跨域的 Domain）
                    cookieStr += '; domain=' + targetDomain;
                    
                    document.cookie = cookieStr;
                    console.log('[浏览器端] ✓ 尝试设置 Cookie:', cookie.name);
                    successCount++;
                    
                    // 验证 Cookie 是否设置成功
                    const allCookies = document.cookie;
                    if (allCookies.indexOf(cookie.name + '=') !== -1) {
                        console.log('[浏览器端] ✓ Cookie 设置成功:', cookie.name);
                    } else {
                        console.warn('[浏览器端] ⚠ Cookie 可能未设置成功:', cookie.name, '(可能是跨域限制)');
                    }
                } catch(e) {
                    console.error('[浏览器端] ✗ 设置 Cookie 失败:', cookie.name, e);
                    failCount++;
                }
            });
            
            console.log('[浏览器端] Cookie 设置结果: 成功 ' + successCount + ', 失败 ' + failCount);
            
            // 方法2: 使用隐藏的 iframe 加载目标站点，让服务器设置 Cookie
            // 然后跳转到目标站点
            console.log('[浏览器端] 创建隐藏 iframe 加载目标站点...');
            const iframe = document.getElementById('cookieFrame');
            
            iframe.onload = function() {
                console.log('[浏览器端] iframe 加载完成');
            };
            
            iframe.onerror = function(error) {
                console.error('[浏览器端] iframe 加载失败:', error);
            };
            
            iframe.src = targetUrl;
            
            // 延迟跳转，确保 iframe 加载完成
            setTimeout(function() {
                console.log('[浏览器端] 准备跳转到目标站点:', targetUrl);
                console.log('[浏览器端] 当前页面 Cookie:', document.cookie);
                console.log('========================================');
                window.location.href = targetUrl;
            }, 1500);
        })();
    </script>
</body>
</html>
  `;
}

// 处理 RSA 加密表单登录
async function handleRSAEncryptedFormLogin(config, credentials) {
  const { targetBaseUrl, loginUrl, loginMethodConfig } = config;
  const { publicKey, usernameField, passwordField, captchaField, captchaRequired, contentType, successCode, successField } = loginMethodConfig;
  
  console.log('=== RSA 加密表单登录 ===');
  console.log(`目标URL: ${targetBaseUrl}${loginUrl}`);
  console.log(`用户名: ${credentials.username}`);
  console.log(`密码: ${'*'.repeat(credentials.password.length)}`);
  console.log(`内容类型: ${contentType}`);
  console.log(`成功标识字段: ${successField || 'code'}, 成功值: ${successCode}`);
  
  // 加密用户名和密码
  const usernameEncrypted = encryptWithRSA(credentials.username, publicKey);
  const passwordEncrypted = encryptWithRSA(credentials.password, publicKey);
  
  console.log('用户名和密码已加密');
  console.log(`加密后用户名长度: ${usernameEncrypted.length}`);
  console.log(`加密后密码长度: ${passwordEncrypted.length}`);
  
  // 构建请求数据
  const requestData = {
    [usernameField]: usernameEncrypted,
    [passwordField]: passwordEncrypted
  };
  
  if (captchaField) {
    requestData[captchaField] = captchaRequired ? '' : '';
  }
  
  // 发送登录请求
  const headers = {};
  let requestBody;
  
  if (contentType === 'application/x-www-form-urlencoded') {
    headers['Content-Type'] = 'application/x-www-form-urlencoded';
    requestBody = new URLSearchParams(requestData).toString();
  } else if (contentType === 'application/json') {
    headers['Content-Type'] = 'application/json';
    requestBody = JSON.stringify(requestData);
  } else {
    requestBody = requestData;
  }
  
  console.log(`发送登录请求到: ${targetBaseUrl}${loginUrl}`);
  console.log(`请求头:`, JSON.stringify(headers, null, 2));
  console.log(`请求体长度: ${requestBody.length} 字符`);
  
  const loginResponse = await axios.post(
    `${targetBaseUrl}${loginUrl}`,
    requestBody,
    {
      headers,
      withCredentials: true,
      maxRedirects: 0,
      validateStatus: function (status) {
        return status >= 200 && status < 400;
      }
    }
  );
  
  console.log(`登录响应状态码: ${loginResponse.status}`);
  console.log(`响应头:`, JSON.stringify(loginResponse.headers, null, 2));
  console.log(`响应数据:`, JSON.stringify(loginResponse.data, null, 2));
  
  // 检查登录是否成功
  const responseData = loginResponse.data || {};
  const successValue = successField ? responseData[successField] : responseData.code;
  
  console.log(`成功标识值: ${successValue}, 期望值: ${successCode}`);
  
  if (successValue === successCode) {
    const cookies = loginResponse.headers['set-cookie'] || [];
    console.log(`登录成功！获取到 ${cookies.length} 个 Cookie`);
    cookies.forEach((cookie, index) => {
      console.log(`Cookie ${index + 1}: ${cookie.substring(0, 100)}...`);
    });
    return {
      success: true,
      cookies: cookies,
      response: loginResponse.data
    };
  } else {
    console.error(`登录失败！响应:`, responseData);
    return {
      success: false,
      message: responseData.msg || responseData.message || '登录失败',
      response: responseData
    };
  }
}

// 处理普通表单登录（未加密）
async function handlePlainFormLogin(config, credentials) {
  const { targetBaseUrl, loginUrl, loginMethodConfig } = config;
  const { usernameField, passwordField, captchaField, contentType, successCode, successField } = loginMethodConfig;
  
  console.log('=== 普通表单登录 ===');
  console.log(`目标URL: ${targetBaseUrl}${loginUrl}`);
  console.log(`用户名: ${credentials.username}`);
  console.log(`密码: ${'*'.repeat(credentials.password.length)}`);
  console.log(`内容类型: ${contentType}`);
  console.log(`成功标识字段: ${successField || 'code'}, 成功值: ${successCode}`);
  
  // 构建请求数据
  const requestData = {
    [usernameField]: credentials.username,
    [passwordField]: credentials.password
  };
  
  if (captchaField) {
    requestData[captchaField] = '';
  }
  
  // 发送登录请求
  const headers = {};
  let requestBody;
  
  if (contentType === 'application/x-www-form-urlencoded') {
    headers['Content-Type'] = 'application/x-www-form-urlencoded';
    requestBody = new URLSearchParams(requestData).toString();
  } else if (contentType === 'application/json') {
    headers['Content-Type'] = 'application/json';
    requestBody = JSON.stringify(requestData);
  } else {
    requestBody = requestData;
  }
  
  console.log(`发送登录请求到: ${targetBaseUrl}${loginUrl}`);
  console.log(`请求头:`, JSON.stringify(headers, null, 2));
  console.log(`请求体:`, contentType === 'application/json' ? requestBody : requestBody.substring(0, 200) + '...');
  
  const loginResponse = await axios.post(
    `${targetBaseUrl}${loginUrl}`,
    requestBody,
    {
      headers,
      withCredentials: true,
      maxRedirects: 0,
      validateStatus: function (status) {
        return status >= 200 && status < 400;
      }
    }
  );
  
  console.log(`登录响应状态码: ${loginResponse.status}`);
  console.log(`响应数据:`, JSON.stringify(loginResponse.data, null, 2));
  
  // 检查登录是否成功
  const responseData = loginResponse.data || {};
  const successValue = successField ? responseData[successField] : responseData.code;
  
  console.log(`成功标识值: ${successValue}, 期望值: ${successCode}`);
  
  if (successValue === successCode) {
    const cookies = loginResponse.headers['set-cookie'] || [];
    console.log(`登录成功！获取到 ${cookies.length} 个 Cookie`);
    cookies.forEach((cookie, index) => {
      console.log(`Cookie ${index + 1}: ${cookie.substring(0, 100)}...`);
    });
    return {
      success: true,
      cookies: cookies,
      response: loginResponse.data
    };
  } else {
    console.error(`登录失败！响应:`, responseData);
    return {
      success: false,
      message: responseData.msg || responseData.message || '登录失败',
      response: responseData
    };
  }
}

// 通用的自动登录端点
app.get('/api/auto-login/:siteId', async (req, res) => {
  const startTime = Date.now();
  const requestId = `${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
  
  // 立即输出日志，确认请求已到达
  console.log('\n' + '='.repeat(80));
  console.log(`[${requestId}] ⚡⚡⚡ 收到自动登录请求！⚡⚡⚡`);
  console.log(`[${requestId}] 时间: ${new Date().toISOString()}`);
  console.log(`[${requestId}] 请求路径: ${req.path}`);
  console.log(`[${requestId}] 请求方法: ${req.method}`);
  console.log(`[${requestId}] 完整URL: ${req.protocol}://${req.get('host')}${req.originalUrl}`);
  console.log(`[${requestId}] 客户端IP: ${req.ip || req.connection.remoteAddress || req.socket.remoteAddress}`);
  console.log(`[${requestId}] User-Agent: ${req.get('user-agent') || 'Unknown'}`);
  
  try {
    const { siteId } = req.params;
    console.log(`[${requestId}] 网站ID: ${siteId}`);
    
    // 获取网站配置
    const config = autoLoginConfig[siteId];
    if (!config) {
      console.error(`[${requestId}] 错误: 未找到网站ID "${siteId}" 的配置`);
      console.error(`[${requestId}] 可用的网站ID: ${Object.keys(autoLoginConfig).join(', ') || '无'}`);
      return res.status(404).json({
        success: false,
        message: `未找到网站ID "${siteId}" 的配置`,
        availableSites: Object.keys(autoLoginConfig)
      });
    }
    
    console.log(`[${requestId}] 网站名称: ${config.name}`);
    console.log(`[${requestId}] 目标地址: ${config.targetBaseUrl}`);
    console.log(`[${requestId}] 登录方法: ${config.loginMethod}`);
    
    // 获取登录凭据（优先使用环境变量）
    const envUsername = process.env[config.credentials.envUsername];
    const envPassword = process.env[config.credentials.envPassword];
    const credentials = {
      username: envUsername || config.credentials.username,
      password: envPassword || config.credentials.password
    };
    
    console.log(`[${requestId}] 凭据来源: ${envUsername ? '环境变量' : '配置文件'}`);
    console.log(`[${requestId}] 用户名: ${credentials.username}`);
    console.log(`[${requestId}] 密码: ${'*'.repeat(credentials.password.length)}`);
    
    if (!credentials.username || !credentials.password) {
      console.error(`[${requestId}] 错误: 登录凭据未配置`);
      return res.status(400).json({
        success: false,
        message: '登录凭据未配置'
      });
    }
    
    // 根据登录方法处理登录
    let loginResult;
    console.log(`[${requestId}] 开始执行登录...`);
    switch (config.loginMethod) {
      case 'rsa-encrypted-form':
        loginResult = await handleRSAEncryptedFormLogin(config, credentials);
        break;
      case 'plain-form':
        loginResult = await handlePlainFormLogin(config, credentials);
        break;
      default:
        console.error(`[${requestId}] 错误: 不支持的登录方法: ${config.loginMethod}`);
        return res.status(400).json({
          success: false,
          message: `不支持的登录方法: ${config.loginMethod}`
        });
    }
    
    if (!loginResult.success) {
      console.error(`[${requestId}] 登录失败:`, loginResult.message);
      console.error(`[${requestId}] 失败响应:`, JSON.stringify(loginResult.response, null, 2));
      const duration = Date.now() - startTime;
      console.log(`[${requestId}] 总耗时: ${duration}ms`);
      console.log('='.repeat(80) + '\n');
      
      // 返回错误页面而不是 JSON
      const errorHtml = `
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>自动登录失败</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        .error-container {
            background: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            max-width: 600px;
            text-align: center;
        }
        .error-icon {
            font-size: 64px;
            margin-bottom: 20px;
        }
        .error-title {
            font-size: 24px;
            color: #e74c3c;
            margin-bottom: 15px;
        }
        .error-message {
            font-size: 16px;
            color: #666;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .error-details {
            background: #f8f9fa;
            padding: 15px;
            border-radius: 8px;
            margin-top: 20px;
            text-align: left;
            font-size: 14px;
            color: #555;
        }
        .error-details pre {
            margin: 0;
            white-space: pre-wrap;
            word-wrap: break-word;
        }
    </style>
</head>
<body>
    <div class="error-container">
        <div class="error-icon">❌</div>
        <div class="error-title">自动登录失败</div>
        <div class="error-message">${loginResult.message}</div>
        <div class="error-details">
            <strong>请求ID:</strong> ${requestId}<br>
            <strong>网站:</strong> ${config.name}<br>
            <strong>详细信息:</strong>
            <pre>${JSON.stringify(loginResult.response, null, 2)}</pre>
        </div>
        <button onclick="window.history.back()" style="margin-top: 20px; padding: 10px 20px; background: #3498db; color: white; border: none; border-radius: 6px; cursor: pointer;">返回</button>
    </div>
</body>
</html>
      `;
      return res.status(500).send(errorHtml);
    }
    
    console.log(`[${requestId}] 登录成功！`);
    
    // 解析 Cookie
    const cookieData = parseCookies(loginResult.cookies);
    console.log(`[${requestId}] 解析到 ${cookieData.length} 个 Cookie:`);
    cookieData.forEach((cookie, index) => {
      console.log(`[${requestId}]   Cookie ${index + 1}: ${cookie.name} = ${cookie.value.substring(0, 20)}...`);
    });
    
    // 生成跳转 HTML（添加更多调试信息）
    console.log(`[${requestId}] 生成跳转页面，目标: http://${config.targetHost}/`);
    const html = generateRedirectHTML(
      cookieData,
      config.targetHost,
      config.targetDomain,
      requestId
    );
    
    // 在响应头中设置 Cookie
    console.log(`[${requestId}] 设置响应头 Cookie...`);
    loginResult.cookies.forEach((cookie, index) => {
      // 修改 Cookie 的 Domain，移除端口号
      let modifiedCookie = cookie.replace(/Domain=[^;]+/i, `Domain=${config.targetDomain}`);
      res.setHeader('Set-Cookie', modifiedCookie);
      console.log(`[${requestId}]   设置 Cookie ${index + 1}: ${modifiedCookie.substring(0, 80)}...`);
    });
    
    const duration = Date.now() - startTime;
    console.log(`[${requestId}] 总耗时: ${duration}ms`);
    console.log(`[${requestId}] 返回跳转页面`);
    console.log('='.repeat(80) + '\n');
    
    res.send(html);
  } catch (error) {
    const duration = Date.now() - startTime;
    console.error(`[${requestId}] 自动登录异常:`, error.message);
    console.error(`[${requestId}] 错误堆栈:`, error.stack);
    if (error.response) {
      console.error(`[${requestId}] 响应状态:`, error.response.status);
      console.error(`[${requestId}] 响应头:`, JSON.stringify(error.response.headers, null, 2));
      console.error(`[${requestId}] 响应数据:`, JSON.stringify(error.response.data, null, 2));
    }
    if (error.request) {
      console.error(`[${requestId}] 请求信息:`, {
        url: error.config?.url,
        method: error.config?.method,
        headers: error.config?.headers
      });
    }
    console.log(`[${requestId}] 总耗时: ${duration}ms`);
    console.log('='.repeat(80) + '\n');
    res.status(500).json({
      success: false,
      message: '自动登录失败: ' + error.message,
      error: process.env.NODE_ENV === 'development' ? error.stack : undefined
    });
  }
});

// 获取所有配置的网站列表
app.get('/api/auto-login', (req, res) => {
  const sites = Object.keys(autoLoginConfig).map(siteId => ({
    id: siteId,
    name: autoLoginConfig[siteId].name,
    endpoint: `/api/auto-login/${siteId}`
  }));
  res.json({ sites });
});

// 健康检查端点
app.get('/api/health', (req, res) => {
  res.json({ 
    status: 'ok',
    timestamp: new Date().toISOString(),
    port: PORT,
    configuredSites: Object.keys(autoLoginConfig)
  });
});

// 测试端点 - 用于验证配置
app.get('/api/test/:siteId', (req, res) => {
  const { siteId } = req.params;
  const config = autoLoginConfig[siteId];
  
  if (!config) {
    return res.json({
      success: false,
      message: `未找到网站ID "${siteId}" 的配置`,
      availableSites: Object.keys(autoLoginConfig)
    });
  }
  
  const envUsername = process.env[config.credentials.envUsername];
  const envPassword = process.env[config.credentials.envPassword];
  const credentials = {
    username: envUsername || config.credentials.username,
    password: envPassword || config.credentials.password
  };
  
  res.json({
    success: true,
    siteId,
    config: {
      name: config.name,
      targetBaseUrl: config.targetBaseUrl,
      loginMethod: config.loginMethod,
      loginUrl: config.loginUrl,
      hasCredentials: !!(credentials.username && credentials.password),
      credentialsSource: envUsername ? '环境变量' : '配置文件',
      username: credentials.username,
      passwordLength: credentials.password ? credentials.password.length : 0
    }
  });
});

app.listen(PORT, '0.0.0.0', () => {
  console.log('\n' + '='.repeat(80));
  console.log('🚀 后端服务器启动成功！');
  console.log('='.repeat(80));
  console.log(`📍 本地地址: http://localhost:${PORT}`);
  console.log(`📍 服务器地址: http://0.0.0.0:${PORT}`);
  console.log(`📍 外部访问: http://222.243.138.146:${PORT} (通过防火墙端口映射)`);
  console.log(`\n📋 已配置的自动登录网站: ${Object.keys(autoLoginConfig).join(', ') || '无'}`);
  console.log(`\n🔗 可用端点:`);
  console.log(`   - 健康检查: http://localhost:${PORT}/api/health`);
  console.log(`   - 测试配置: http://localhost:${PORT}/api/test/:siteId`);
  console.log(`   - 自动登录: http://localhost:${PORT}/api/auto-login/:siteId`);
  console.log(`\n💡 提示: 确保防火墙已配置端口映射 (前端:8888, 后端:8889 -> 外网)`);
  console.log('='.repeat(80) + '\n');
});