feat: 添加中海油招标平台爬虫支持

src/crawler/services/cnooc_target.ts

@@ -0,0 +1,195 @@
+import * as puppeteer from 'puppeteer';
+import { Logger } from '@nestjs/common';
+
+// 模拟人类鼠标移动
+async function simulateHumanMouseMovement(page: puppeteer.Page) {
+  const viewport = page.viewport();
+  if (!viewport) return;
+
+  const movements = 5 + Math.floor(Math.random() * 5); // 5-10次随机移动
+
+  for (let i = 0; i < movements; i++) {
+    const x = Math.floor(Math.random() * viewport.width);
+    const y = Math.floor(Math.random() * viewport.height);
+    
+    await page.mouse.move(x, y, {
+      steps: 10 + Math.floor(Math.random() * 20) // 10-30步，使移动更平滑
+    });
+    
+    // 随机停顿 100-500ms
+    await new Promise(r => setTimeout(r, 100 + Math.random() * 400));
+  }
+}
+
+// 模拟人类滚动
+async function simulateHumanScrolling(page: puppeteer.Page) {
+  const scrollCount = 3 + Math.floor(Math.random() * 5); // 3-7次滚动
+
+  for (let i = 0; i < scrollCount; i++) {
+    const scrollDistance = 100 + Math.floor(Math.random() * 400); // 100-500px
+    
+    await page.evaluate((distance) => {
+      window.scrollBy({
+        top: distance,
+        behavior: 'smooth'
+      });
+    }, scrollDistance);
+
+    // 随机停顿 500-1500ms
+    await new Promise(r => setTimeout(r, 500 + Math.random() * 1000));
+  }
+
+  // 滚动回顶部
+  await page.evaluate(() => {
+    window.scrollTo({ top: 0, behavior: 'smooth' });
+  });
+  await new Promise(r => setTimeout(r, 1000));
+}
+
+export interface CnoocResult {
+  title: string;
+  publishDate: Date;
+  url: string;
+}
+
+export const CnoocCrawler = {
+  name: '中海油招标平台',
+  url: 'https://buy.cnooc.com.cn/cbjyweb/001/001001/moreinfo.html',
+  baseUrl: 'https://buy.cnooc.com.cn',
+
+  async crawl(browser: puppeteer.Browser): Promise<CnoocResult[]> {
+    const logger = new Logger('CnoocCrawler');
+    const page = await browser.newPage();
+
+    const username = process.env.PROXY_USERNAME;
+    const password = process.env.PROXY_PASSWORD;
+    if (username && password) {
+      await page.authenticate({ username, password });
+    }
+
+    await page.evaluateOnNewDocument(() => {
+      Object.defineProperty(navigator, 'webdriver', { get: () => false });
+      Object.defineProperty(navigator, 'language', {	get: () => "zh-CN"});
+      Object.defineProperty(navigator, 'plugins', {	get: () => [1,2,3,4,5]});
+    });
+
+    await page.setUserAgent('Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36');
+    await page.setViewport({ width: 1920, height: 1080 });
+
+    const allResults: CnoocResult[] = [];
+    let currentPage = 1;
+    const maxPages = 5;
+
+    try {
+      logger.log(`Navigating to ${this.url}...`);
+      await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+
+      // 模拟人类行为
+      logger.log('Simulating human mouse movements...');
+      await simulateHumanMouseMovement(page);
+      
+      logger.log('Simulating human scrolling...');
+      await simulateHumanScrolling(page);
+
+      while (currentPage <= maxPages) {
+        logger.log(`Processing page ${currentPage}...`);
+
+        const content = await page.content();
+        const pageResults = this.extract(content);
+
+        if (pageResults.length === 0) {
+          logger.warn(`No results found on page ${currentPage}, stopping.`);
+          break;
+        }
+
+        allResults.push(...pageResults);
+        logger.log(`Extracted ${pageResults.length} items from page ${currentPage}`);
+
+        // 模拟人类行为 - 翻页前
+        logger.log('Simulating human mouse movements before pagination...');
+        await simulateHumanMouseMovement(page);
+        
+        logger.log('Simulating human scrolling before pagination...');
+        await simulateHumanScrolling(page);
+
+        // 查找下一页按钮 - 中海油使用特定的分页结构
+        // 下一页链接格式: <a href="https://buy.cnooc.com.cn/cbjyweb/001/001001/2.html" class="pageLink">下页 ></a>
+        const nextButtonSelector = 'a.pageLink[href*="/cbjyweb/001/001001/"]';
+        const nextButton = await page.$(nextButtonSelector);
+
+        if (!nextButton) {
+          logger.log('Next page button not found. Reached end of list.');
+          break;
+        }
+
+        logger.log(`Navigating to page ${currentPage + 1}...`);
+
+        try {
+          // 点击下一页按钮
+          await nextButton.click();
+          await new Promise(r => setTimeout(r, 3000)); // 等待页面加载
+        } catch (navError) {
+          logger.error(`Navigation to page ${currentPage + 1} failed: ${navError.message}`);
+          break;
+        }
+
+        currentPage++;
+
+        // 模拟人类行为 - 翻页后
+        logger.log('Simulating human mouse movements after pagination...');
+        await simulateHumanMouseMovement(page);
+        
+        logger.log('Simulating human scrolling after pagination...');
+        await simulateHumanScrolling(page);
+
+        // Random delay between pages
+        const delay = Math.floor(Math.random() * (3000 - 1000 + 1)) + 1000;
+        await new Promise(resolve => setTimeout(resolve, delay));
+      }
+
+      return allResults;
+
+    } catch (error) {
+      logger.error(`Failed to crawl ${this.name}: ${error.message}`);
+      return allResults;
+    } finally {
+      await page.close();
+    }
+  },
+
+  extract(html: string): CnoocResult[] {
+    const results: CnoocResult[] = [];
+    /**
+     * Regex groups for buy.cnooc.com.cn:
+     * 1: URL (href属性)
+     * 2: Title (font标签内的文本)
+     * 3: Date (发布时间，格式：2026-01-12)
+     *
+     * HTML结构示例:
+     * <li class="now-hd-items clearfix">
+     *   <a href="https://buy.cnooc.com.cn/cbjyweb/001/001001/20260112/1460280812582768641-zhy.html" target="_blank" class="now-link" title="...">
+     *     <font style="font-weight:bold">中海油服-物探事业部2026-2028年度海事许可办理及码头服务(二次)</font>
+     *   </a>
+     *   <span class="now-span" style="width:100px">2026-01-12</span>
+     * </li>
+     */
+    const regex = /<li class="now-hd-items clearfix">[\s\S]*?<a[^>]*href="([^"]*)"[^>]*>[\s\S]*?<font[^>]*>([^<]*)<\/font>[\s\S]*?<span class="now-span"[^>]*>\s*(\d{4}-\d{2}-\d{2})\s*<\/span>[\s\S]*?<\/li>/gs;
+
+    let match;
+    while ((match = regex.exec(html)) !== null) {
+      const url = match[1]?.trim();
+      const title = match[2]?.trim();
+      const dateStr = match[3]?.trim();
+
+      if (title && url) {
+        results.push({
+          title,
+          publishDate: dateStr ? new Date(dateStr) : new Date(),
+          url: url.startsWith('http') ? url : this.baseUrl + url
+        });
+      }
+    }
+
+    return results;
+  }
+};