{"id":10426,"date":"2026-01-09T16:02:02","date_gmt":"2026-01-09T07:02:02","guid":{"rendered":"https:\/\/code-plus.jp\/gp\/?p=10426"},"modified":"2026-01-09T16:02:02","modified_gmt":"2026-01-09T07:02:02","slug":"puppeteer-nodejs-10426","status":"publish","type":"post","link":"https:\/\/code-plus.jp\/gp\/puppeteer-nodejs-10426\/","title":{"rendered":"Puppeteer\u00d7Node.js\u3067\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u30c4\u30fc\u30eb\u3092\u4f5c\u308b\u969b\u306e\u6280\u8853\u7684\u306a\u30b3\u30c4\u3068\u6ce8\u610f\u70b9"},"content":{"rendered":"<p>\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u30c4\u30fc\u30eb\u958b\u767a\u3067\u62bc\u3055\u3048\u3066\u304a\u304f\u3079\u304d\u6280\u8853\u7684\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<br \/>\n  \u3053\u308c\u304b\u3089Puppeteer\u3067\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u30c4\u30fc\u30eb\u3092\u4f5c\u308b\u65b9\u306e\u53c2\u8003\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n<h2 class=\"fz-xl\">\u3053\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3059\u308b\u3053\u3068<\/h2>\n<ul style=\"list-style-type:bullet;\">\n  <li>\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u8a2d\u8a08<\/li>\n  <li>Puppeteer\u3067\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/li>\n  <li>\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u5bfe\u51e6\u6cd5<\/li>\n  <li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u54c1\u8cea\u3092\u9ad8\u3081\u308b\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30d1\u30bf\u30fc\u30f3<\/li>\n  <li>\u5229\u7528\u898f\u7d04\u9075\u5b88\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/li>\n<\/ul>\n\n <!-- \u2605\u76ee\u6b21\u30ea\u30b9\u30c8 -->\n<ul class=\"tocList mt-1r\" data-toc-id=\"js-tocBWGD\" style=\"height:28rem\"><\/ul>\n<ins class=\"tocBtn is-fixed\" data-toc-id=\"js-tocBWGD\"><\/ins>\n\n\n\n\n\n\n\n<h2 class=\"fz-xl\">1. \u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u8a2d\u8a08\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n<h3 class=\"fz-ml\">\u69cb\u6210\uff1aExpress.js + Puppeteer + WebSocket<\/h3>\n<p>\u5b9f\u969b\u306b\u958b\u767a\u3057\u305f\u30c4\u30fc\u30eb\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u69cb\u6210\u3092\u63a1\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n<pre><code class=\"language-\">\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff08\u30d6\u30e9\u30a6\u30b6\uff09\n    \u2193 HTTP \/ WebSocket\nExpress.js\u30b5\u30fc\u30d0\u30fc\n    \u2193\nSearchManager\uff08\u691c\u7d22\u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\uff09\n    \u2193\nScraperRegistry\uff08\u30b9\u30af\u30ec\u30a4\u30d1\u30fc\u7ba1\u7406\uff09\n    \u2193\n\u5404\u30b5\u30a4\u30c8\u5c02\u7528\u30b9\u30af\u30ec\u30a4\u30d1\u30fc\n    \u2193\nPuppeteer\uff08\u30d8\u30c3\u30c9\u30ec\u30b9\u30d6\u30e9\u30a6\u30b6\uff09\n<\/code><\/pre>\n<p>\u3053\u306e\u69cb\u6210\u306e\u30e1\u30ea\u30c3\u30c8\u306f3\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol style=\"list-style-type:decimal;\">\n  <li><b class=\"fw-600\">\u975e\u540c\u671f\u691c\u7d22<\/b>: \u691c\u7d22\u958b\u59cb\u5f8c\u3059\u3050\u306b\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u8fd4\u3057\u3001\u9032\u6357\u306fWebSocket\u3067\u901a\u77e5<\/li>\n  <li><b class=\"fw-600\">\u62e1\u5f35\u6027<\/b>: \u65b0\u898f\u30b5\u30a4\u30c8\u8ffd\u52a0\u6642\u306f\u30b9\u30af\u30ec\u30a4\u30d1\u30fc\u30d5\u30a1\u30a4\u30eb\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051<\/li>\n  <li><b class=\"fw-600\">\u518d\u5229\u7528\u6027<\/b>: \u691c\u7d22\u30ed\u30b8\u30c3\u30af\u3068UI\/API\u304c\u5206\u96e2\u3055\u308c\u3066\u3044\u308b<\/li>\n<\/ol>\n<h3 class=\"fz-ml\">\u57fa\u5e95\u30af\u30e9\u30b9\u306b\u3088\u308b\u7d71\u4e00\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/h3>\n<p>\u8907\u6570\u30b5\u30a4\u30c8\u306b\u5bfe\u5fdc\u3059\u308b\u5834\u5408\u3001\u57fa\u5e95\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u3066\u304a\u304f\u3068\u4fdd\u5b88\u304c\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-javascript\">\/\/ scrapers\/base-scraper.js\nclass BaseScraper {\n  constructor(config) {\n    this.id = config.id;           \/\/ &#39;photo-ac&#39;\n    this.name = config.name;       \/\/ &#39;\u5199\u771fAC&#39;\n    this.baseUrl = config.baseUrl;\n    this.mediaType = config.mediaType; \/\/ &#39;photo&#39; | &#39;illust&#39; | &#39;video&#39;\n  }\n\n  \/\/ \u30b5\u30d6\u30af\u30e9\u30b9\u3067\u5b9f\u88c5\u5fc5\u9808\n  buildSearchUrl(keyword) {\n    throw new Error(&#39;buildSearchUrl must be implemented&#39;);\n  }\n\n  async parseResults(page) {\n    throw new Error(&#39;parseResults must be implemented&#39;);\n  }\n\n  \/\/ \u5171\u901a\u51e6\u7406\n  async search(browser, keyword, onProgress) {\n    const page = await browser.newPage();\n    await this.setupPage(page);\n    \n    try {\n      const url = this.buildSearchUrl(keyword);\n      await page.goto(url, { waitUntil: &#39;networkidle2&#39;, timeout: 60000 });\n      await this.autoScroll(page);\n      return await this.parseResults(page);\n    } finally {\n      await page.close();\n    }\n  }\n}\n<\/code><\/pre>\n<p>\u30b5\u30a4\u30c8\u56fa\u6709\u306e\u5b9f\u88c5\u306f\u7d99\u627f\u3057\u3066\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-javascript\">\/\/ scrapers\/photo-ac.js\nclass PhotoACScraper extends BaseScraper {\n  constructor() {\n    super({\n      id: &#39;photo-ac&#39;,\n      name: &#39;\u5199\u771fAC&#39;,\n      baseUrl: &#39;https:\/\/www.photo-ac.com&#39;,\n      mediaType: &#39;photo&#39;\n    });\n  }\n\n  buildSearchUrl(keyword) {\n    return `${this.baseUrl}\/main\/search?q=${encodeURIComponent(keyword)}`;\n  }\n\n  async parseResults(page) {\n    return await page.evaluate(() =&gt; {\n      \/\/ \u30b5\u30a4\u30c8\u56fa\u6709\u306eDOM\u89e3\u6790\u30ed\u30b8\u30c3\u30af\n    });\n  }\n}\n<\/code><\/pre>\n<h2 class=\"fz-xl\">2. Puppeteer\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n<h3 class=\"fz-ml\">\u30ea\u30af\u30a8\u30b9\u30c8\u9593\u9694\u306f3\u79d2\u4ee5\u4e0a\u7a7a\u3051\u308b<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u8ca0\u8377\u3092\u8003\u616e\u3057\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u9593\u9694\u306f\u6700\u4f4e3\u79d2\u4ee5\u4e0a\u7a7a\u3051\u307e\u3057\u3087\u3046\u3002\u30e9\u30f3\u30c0\u30e0\u8981\u7d20\u3092\u5165\u308c\u308b\u3068\u3088\u308a\u81ea\u7136\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-javascript\">async randomSleep(minMs = 3000, maxMs = 5000) {\n  const delay = Math.floor(Math.random() * (maxMs - minMs + 1)) + minMs;\n  await new Promise(resolve =&gt; setTimeout(resolve, delay));\n}\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u81ea\u52d5\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u306b\u5bfe\u5fdc<\/h3>\n<p>\u591a\u304f\u306e\u30b5\u30a4\u30c8\u306f\u7121\u9650\u30b9\u30af\u30ed\u30fc\u30eb\u3084\u9045\u5ef6\u8aad\u307f\u8fbc\u307f\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u306a\u3044\u3068\u753b\u50cf\u304c\u8aad\u307f\u8fbc\u307e\u308c\u307e\u305b\u3093\u3002<\/p>\n<pre><code class=\"language-javascript\">async autoScroll(page) {\n  await page.evaluate(async () =&gt; {\n    await new Promise(resolve =&gt; {\n      let totalHeight = 0;\n      const distance = 500;\n      const timer = setInterval(() =&gt; {\n        window.scrollBy(0, distance);\n        totalHeight += distance;\n        if (totalHeight &gt;= document.body.scrollHeight - window.innerHeight) {\n          clearInterval(timer);\n          resolve();\n        }\n      }, 200);\n    });\n  });\n}\n<\/code><\/pre>\n<h3 class=\"fz-ml\">SPA\u5bfe\u5fdc\uff1a\u52d5\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5f85\u6a5f<\/h3>\n<p>React\/Next.js\u7b49\u306eSPA\u30b5\u30a4\u30c8\u3067\u306f\u3001DOM\u304c\u52d5\u7684\u306b\u751f\u6210\u3055\u308c\u307e\u3059\u3002\u9069\u5207\u306a\u5f85\u6a5f\u51e6\u7406\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-javascript\">\/\/ \u753b\u50cf\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u307e\u3067\u5f85\u6a5f\nawait page.waitForFunction(() =&gt; {\n  return document.readyState === &#39;complete&#39; &amp;&amp; \n         document.querySelectorAll(&#39;img&#39;).length &gt; 0;\n}, { timeout: 20000 });\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u8907\u6570\u30bb\u30ec\u30af\u30bf\u30fc\u3067DOM\u89e3\u6790\u306e\u5805\u7262\u6027\u3092\u9ad8\u3081\u308b<\/h3>\n<p>\u30b5\u30a4\u30c8\u306eHTML\u69cb\u9020\u306f\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u8907\u6570\u306e\u30bb\u30ec\u30af\u30bf\u30fc\u30d1\u30bf\u30fc\u30f3\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-javascript\">const searchPatterns = [\n  &#39;[data-hero-key^=&quot;image-&quot;]&#39;,           \/\/ data\u5c5e\u6027\u30d1\u30bf\u30fc\u30f3\n  &#39;img[src*=&quot;cdn.example.com&quot;]&#39;,         \/\/ CDN\u753b\u50cf\n  &#39;a[href*=&quot;\/image\/&quot;] img&#39;,              \/\/ \u8a73\u7d30\u30ea\u30f3\u30af\u5185\u306e\u753b\u50cf\n  &#39;img[src*=&quot;.webp&quot;], img[src*=&quot;.jpg&quot;]&#39;  \/\/ \u62e1\u5f35\u5b50\u30d1\u30bf\u30fc\u30f3\n];\n\nlet imageElements = [];\nsearchPatterns.forEach(pattern =&gt; {\n  try {\n    const elements = document.querySelectorAll(pattern);\n    imageElements.push(...elements);\n  } catch (e) {\n    console.warn(&#39;Pattern failed:&#39;, pattern);\n  }\n});\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u5e83\u544a\u30fb\u5916\u90e8\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u9664\u5916<\/h3>\n<p>\u7d20\u6750\u30b5\u30a4\u30c8\u306b\u306fiStock\u3084Shutterstock\u306e\u5e83\u544a\u304c\u6df7\u5728\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002CDN\u30c9\u30e1\u30a4\u30f3\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre><code class=\"language-javascript\">const thumbDomain = &#39;thumb.photo-ac.com&#39;;\n\n\/\/ \u6b63\u898f\u306e\u7d20\u6750\u306e\u307f\u62bd\u51fa\nconst validImages = images.filter(img =&gt; {\n  const src = img.src || &#39;&#39;;\n  return src.includes(thumbDomain) &amp;&amp; \n         !src.includes(&#39;istockphoto&#39;) &amp;&amp;\n         !src.includes(&#39;shutterstock&#39;);\n});\n<\/code><\/pre>\n<h2 class=\"fz-xl\">3. \u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<p>\u5b9f\u969b\u306e\u958b\u767a\u3067\u906d\u9047\u3057\u305f\u30a8\u30e9\u30fc\u3068\u89e3\u6c7a\u7b56\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<h3 class=\"fz-ml\">URL\u5f62\u5f0f\u306e\u9593\u9055\u3044<\/h3>\n<p><b class=\"fw-600\">\u75c7\u72b6<\/b>: \u30b9\u30af\u30ec\u30a4\u30d1\u30fc\u306f\u52d5\u304f\u306e\u306b\u691c\u7d22\u7d50\u679c\u304c0\u4ef6<\/p>\n<p><b class=\"fw-600\">\u539f\u56e0<\/b>: \u63a8\u6e2c\u3057\u305fURL\u5f62\u5f0f\u304c\u5b9f\u969b\u3068\u7570\u306a\u3063\u3066\u3044\u305f<\/p>\n<pre><code class=\"language-javascript\">\/\/ \u9593\u9055\u3044\uff1a\u63a8\u6e2c\u30d9\u30fc\u30b9\nreturn `${this.baseUrl}\/search?query=${keyword}`;\n\n\/\/ \u6b63\u89e3\uff1a\u5b9f\u30b5\u30a4\u30c8\u691c\u8a3c\u6e08\u307f\nreturn `${this.baseUrl}\/?q=${keyword}`;\n<\/code><\/pre>\n<p><b class=\"fw-600\">\u6559\u8a13<\/b>: \u5b9f\u30b5\u30a4\u30c8\u306e\u30d6\u30e9\u30a6\u30b6\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3067URL\u5f62\u5f0f\u3092\u5fc5\u305a\u78ba\u8a8d\u3059\u308b\u3002\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3084\u63a8\u6e2c\u3088\u308a\u5b9f\u52d5\u4f5c\u304c\u6b63\u3057\u3044\u3002<\/p>\n<h3 class=\"fz-ml\">undefined\u5024\u306e\u96a0\u853d\u554f\u984c<\/h3>\n<p><b class=\"fw-600\">\u75c7\u72b6<\/b>: \u30d7\u30ed\u30b0\u30ec\u30b9\u30d0\u30fc\u304c0%\u306b\u30ea\u30bb\u30c3\u30c8\u3055\u308c\u308b<\/p>\n<p><b class=\"fw-600\">\u539f\u56e0<\/b>: fallback\u51e6\u7406\u3067undefined\u554f\u984c\u304c\u898b\u3048\u306b\u304f\u304f\u306a\u3063\u3066\u3044\u305f<\/p>\n<pre><code class=\"language-javascript\">\/\/ \u554f\u984c\uff1aundefined\u304c0\u306b\u5909\u63db\u3055\u308c\u308b\nconst percent = data.progress || 0;\n\n\/\/ \u89e3\u6c7a\uff1a\u660e\u793a\u7684\u306b\u5024\u3092\u8a2d\u5b9a\nonProgress?.({\n  type: &#39;progress&#39;,\n  progress: Math.round(currentProgress * 100), \/\/ \u5fc5\u305a\u8a08\u7b97\u5024\u3092\u6e21\u3059\n  ...otherData\n});\n<\/code><\/pre>\n<p><b class=\"fw-600\">\u6559\u8a13<\/b>: <code>|| 0<\/code>\u7b49\u306efallback\u306f\u4fbf\u5229\u3060\u304c\u3001\u30d0\u30b0\u3092\u96a0\u3059\u3053\u3068\u3082\u3042\u308b\u3002\u30c7\u30d0\u30c3\u30b0\u6642\u306f\u5b9f\u969b\u306e\u5024\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<h3 class=\"fz-ml\">DOM\u69cb\u9020\u5909\u66f4\u3078\u306e\u5bfe\u5fdc<\/h3>\n<p><b class=\"fw-600\">\u75c7\u72b6<\/b>: \u3042\u308b\u65e5\u7a81\u7136\u3001\u691c\u7d22\u7d50\u679c\u304c\u53d6\u5f97\u3067\u304d\u306a\u304f\u306a\u308b<\/p>\n<p><b class=\"fw-600\">\u539f\u56e0<\/b>: \u30b5\u30a4\u30c8\u306e\u30ea\u30cb\u30e5\u30fc\u30a2\u30eb\u3067HTML\u69cb\u9020\u304c\u5909\u308f\u3063\u305f<\/p>\n<p><b class=\"fw-600\">\u5bfe\u7b56<\/b>: <\/p>\n<ul style=\"list-style-type:bullet;\">\n  <li>\u8907\u6570\u306e\u30bb\u30ec\u30af\u30bf\u30fc\u30d1\u30bf\u30fc\u30f3\u3092\u7528\u610f<\/li>\n  <li>\u7d50\u679c\u304c0\u4ef6\u306e\u5834\u5408\u306f\u8b66\u544a\u30ed\u30b0\u3092\u51fa\u529b<\/li>\n  <li>\u5b9a\u671f\u7684\u306a\u52d5\u4f5c\u78ba\u8a8d<\/li>\n<\/ul>\n<pre><code class=\"language-javascript\">if (results.length === 0) {\n  logger.warn(&#39;parse_results_empty&#39;, &#39;\u691c\u7d22\u7d50\u679c\u304c0\u4ef6\u3067\u3059&#39;, {\n    context: { siteId: this.id, url: currentUrl },\n    aiTodo: &#39;DOM\u69cb\u9020\u306e\u518d\u78ba\u8a8d\u304c\u5fc5\u8981&#39;\n  });\n}\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u30d6\u30e9\u30a6\u30b6\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u30ea\u30fc\u30af<\/h3>\n<p><b class=\"fw-600\">\u75c7\u72b6<\/b>: \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u304c\u5897\u3048\u7d9a\u3051\u308b<\/p>\n<p><b class=\"fw-600\">\u539f\u56e0<\/b>: \u30a8\u30e9\u30fc\u6642\u306b\u30d6\u30e9\u30a6\u30b6\u304c\u9589\u3058\u3089\u308c\u3066\u3044\u306a\u3044<\/p>\n<pre><code class=\"language-javascript\">\/\/ \u554f\u984c\uff1a\u30a8\u30e9\u30fc\u6642\u306bpage\u304c\u9589\u3058\u3089\u308c\u306a\u3044\nconst page = await browser.newPage();\ntry {\n  \/\/ \u51e6\u7406\n} finally {\n  await page.close(); \/\/ \u3053\u3053\u306b\u5230\u9054\u3057\u306a\u3044\u30b1\u30fc\u30b9\u304c\u3042\u308b\n}\n\n\/\/ \u89e3\u6c7a\uff1anull\u30c1\u30a7\u30c3\u30af\u4ed8\u304d\u3067\u78ba\u5b9f\u306b\u30af\u30ed\u30fc\u30ba\nlet page = null;\ntry {\n  page = await browser.newPage();\n  \/\/ \u51e6\u7406\n} finally {\n  if (page) {\n    await page.close();\n  }\n}\n<\/code><\/pre>\n<h2 class=\"fz-xl\">4. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u54c1\u8cea\u3092\u9ad8\u3081\u308b\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30d1\u30bf\u30fc\u30f3<\/h2>\n<p>CodeRabbit\u3067\u306e\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u6307\u6458\u3055\u308c\u305f\u5185\u5bb9\u3092\u542b\u3081\u3001\u91cd\u8981\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<h3 class=\"fz-ml\">XSS\u5bfe\u7b56\uff1ainnerHTML \u2192 createElement<\/h3>\n<pre><code class=\"language-javascript\">\/\/ \u5371\u967a\uff1aXSS\u8106\u5f31\u6027\nsiteDiv.innerHTML = `&lt;strong&gt;${siteName}&lt;\/strong&gt;`;\n\n\/\/ \u5b89\u5168\uff1acreateElement + textContent\nconst strong = document.createElement(&#39;strong&#39;);\nstrong.textContent = siteName;\nsiteDiv.appendChild(strong);\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u30c7\u30a3\u30fc\u30d7\u30af\u30ed\u30fc\u30f3\u3067\u30c7\u30fc\u30bf\u6c5a\u67d3\u3092\u9632\u3050<\/h3>\n<pre><code class=\"language-javascript\">\/\/ \u5371\u967a\uff1a\u30cd\u30b9\u30c8\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u5171\u6709\u53c2\u7167\nthis.currentSettings = { ...this.defaultSettings };\n\n\/\/ \u5b89\u5168\uff1a\u5b8c\u5168\u306a\u30c7\u30a3\u30fc\u30d7\u30af\u30ed\u30fc\u30f3\ndeepClone(obj) {\n  if (typeof structuredClone !== &#39;undefined&#39;) {\n    return structuredClone(obj);\n  }\n  return JSON.parse(JSON.stringify(obj));\n}\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u30d1\u30b9\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u5bfe\u7b56<\/h3>\n<pre><code class=\"language-javascript\">\/\/ \u5371\u967a\uff1a\u6b63\u898f\u8868\u73fe\u30d9\u30fc\u30b9\u306e\u4e0d\u5b8c\u5168\u306a\u30b5\u30cb\u30bf\u30a4\u30ba\nconst sanitized = filename.replace(\/[^a-zA-Z0-9._-]\/g, &#39;&#39;);\n\n\/\/ \u5b89\u5168\uff1apath.basename()\u3067\u5b8c\u5168\u306a\u5bfe\u7b56\nconst path = require(&#39;path&#39;);\nconst sanitized = path.basename(decodeURIComponent(filename));\nif (!sanitized || sanitized === &#39;.&#39; || sanitized === &#39;..&#39;) {\n  throw new Error(&#39;\u7121\u52b9\u306a\u30d5\u30a1\u30a4\u30eb\u540d\u3067\u3059&#39;);\n}\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u5bfe\u7b56\uff1a\u5b8c\u4e86\u30bf\u30b9\u30af\u306e\u5b9a\u671f\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7<\/h3>\n<pre><code class=\"language-javascript\">const activeTasks = new Map();\nconst TASK_RETENTION_MS = 60 * 60 * 1000; \/\/ 1\u6642\u9593\n\nfunction cleanupOldTasks() {\n  const now = Date.now();\n  for (const [taskId, task] of activeTasks.entries()) {\n    const isCompleted = task.status === &#39;completed&#39; || task.status === &#39;failed&#39;;\n    const isOld = task.endTime &amp;&amp; (now - task.endTime) &gt; TASK_RETENTION_MS;\n    if (isCompleted &amp;&amp; isOld) {\n      activeTasks.delete(taskId);\n    }\n  }\n}\n\nsetInterval(cleanupOldTasks, 60 * 60 * 1000);\n<\/code><\/pre>\n<h3 class=\"fz-ml\">\u771f\u306eLRU\u30ad\u30e3\u30c3\u30b7\u30e5\u5b9f\u88c5<\/h3>\n<p>JavaScript\u306eMap\u306f\u633f\u5165\u9806\u3092\u8a18\u9332\u3057\u307e\u3059\u304c\u3001\u30a2\u30af\u30bb\u30b9\u9806\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002LRU\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f\u524a\u9664\u2192\u518d\u633f\u5165\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-javascript\">getMemoryCache(key) {\n  if (this.cache.has(key)) {\n    const value = this.cache.get(key);\n    this.cache.delete(key);   \/\/ \u524a\u9664\n    this.cache.set(key, value); \/\/ \u518d\u633f\u5165\u3067\u6700\u65b0\u5316\n    return value;\n  }\n  return null;\n}\n<\/code><\/pre>\n<h2 class=\"fz-xl\">5. \u5229\u7528\u898f\u7d04\u9075\u5b88\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n<p>\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u306f\u6cd5\u7684\u30b0\u30ec\u30fc\u30be\u30fc\u30f3\u306b\u306a\u308a\u3084\u3059\u3044\u9818\u57df\u3067\u3059\u3002\u4ee5\u4e0b\u3092\u5fc5\u305a\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"fz-ml\">\u4e8b\u524d\u78ba\u8a8d<\/h3>\n<ul style=\"list-style-type:bullet;\">\n  <li><input disabled=\"\" type=\"checkbox\"> robots.txt\u3067\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u53ef\u5426\u3092\u78ba\u8a8d<\/li>\n  <li><input disabled=\"\" type=\"checkbox\"> \u5229\u7528\u898f\u7d04\u3067\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u7981\u6b62\u304c\u660e\u8a18\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d<\/li>\n  <li><input disabled=\"\" type=\"checkbox\"> API\u63d0\u4f9b\u304c\u3042\u308c\u3070\u305d\u3061\u3089\u3092\u512a\u5148\u691c\u8a0e<\/li>\n<\/ul>\n<h3 class=\"fz-ml\">\u5b9f\u88c5\u6642\u306e\u914d\u616e<\/h3>\n<ul style=\"list-style-type:bullet;\">\n  <li><input disabled=\"\" type=\"checkbox\"> \u30ea\u30af\u30a8\u30b9\u30c8\u9593\u9694\u306f3\u79d2\u4ee5\u4e0a<\/li>\n  <li><input disabled=\"\" type=\"checkbox\"> User-Agent\u306f\u9069\u5207\u306b\u8a2d\u5b9a\uff08\u30dc\u30c3\u30c8\u660e\u8a18\u3082\u691c\u8a0e\uff09<\/li>\n  <li><input disabled=\"\" type=\"checkbox\"> \u540c\u6642\u63a5\u7d9a\u6570\u306f\u63a7\u3048\u3081\u306b<\/li>\n  <li><input disabled=\"\" type=\"checkbox\"> \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u6a5f\u80fd\u306f\u5b9f\u88c5\u3057\u306a\u3044\uff08\u691c\u7d22\u30fb\u8868\u793a\u306e\u307f\uff09<\/li>\n<\/ul>\n<h3 class=\"fz-ml\">\u904b\u7528\u6642\u306e\u7ba1\u7406<\/h3>\n<ul style=\"list-style-type:bullet;\">\n  <li><input disabled=\"\" type=\"checkbox\"> \u56db\u534a\u671f\u3054\u3068\u306b\u5229\u7528\u898f\u7d04\u306e\u5909\u66f4\u3092\u78ba\u8a8d<\/li>\n  <li><input disabled=\"\" type=\"checkbox\"> \u898f\u7d04\u5909\u66f4\u6642\u306f\u8a72\u5f53\u30b5\u30a4\u30c8\u3092\u7121\u52b9\u5316\u3067\u304d\u308b\u8a2d\u8a08<\/li>\n  <li><input disabled=\"\" type=\"checkbox\"> \u5546\u7528\u5229\u7528\u7981\u6b62\u30b5\u30a4\u30c8\u306b\u306f\u8b66\u544a\u8868\u793a<\/li>\n<\/ul>\n<h3 class=\"fz-ml\">\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0 vs \u624b\u52d5\u30d6\u30e9\u30a6\u30b6\u306e\u8ca0\u8377\u6bd4\u8f03<\/h3>\n<p>\u9069\u5207\u306b\u5b9f\u88c5\u3055\u308c\u305f\u30b9\u30af\u30ec\u30a4\u30d1\u30fc\u306f\u3001\u5b9f\u306f\u624b\u52d5\u30d6\u30e9\u30a6\u30b6\u3088\u308a\u8ca0\u8377\u304c\u4f4e\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<table class=\"table tbl-responsive\">\n  <thead>\n    <tr class=\"rung\">\n      <th>\u9805\u76ee<\/th>\n      <td>\u624b\u52d5\u30d6\u30e9\u30a6\u30b6<\/td>\n      <td>Puppeteer\u30b9\u30af\u30ec\u30a4\u30d1\u30fc<\/td>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr class=\"rung\">\n      <th>HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u6570<\/th>\n      <td>\u591a\u3044\uff08CSS, JS, \u5e83\u544a, \u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u7b49\uff09<\/td>\n      <td>\u5c11\u306a\u3044\uff08\u4e0d\u8981\u30ea\u30bd\u30fc\u30b9\u3092\u30d6\u30ed\u30c3\u30af\u53ef\u80fd\uff09<\/td>\n    <\/tr>\n    <tr class=\"rung\">\n      <th>\u753b\u50cf\u8aad\u307f\u8fbc\u307f<\/th>\n      <td>\u5168\u3066\u8aad\u307f\u8fbc\u307f<\/td>\n      <td>\u30b5\u30e0\u30cd\u30a4\u30eb\u306e\u307f<\/td>\n    <\/tr>\n    <tr class=\"rung\">\n      <th>\u30ea\u30af\u30a8\u30b9\u30c8\u9593\u9694<\/th>\n      <td>\u4e0d\u898f\u5247<\/td>\n      <td>\u5236\u5fa1\u53ef\u80fd\uff083\u79d2\u4ee5\u4e0a\uff09<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n<h2 class=\"fz-xl\">6. \u958b\u767a\u30d7\u30ed\u30bb\u30b9\u306e\u30b3\u30c4<\/h2>\n<h3 class=\"fz-ml\">CodeRabbit\u3067\u306e\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc<\/h3>\n<p>AI\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u30c4\u30fc\u30eb\u300cCodeRabbit\u300d\u3092\u6d3b\u7528\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u554f\u984c\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul style=\"list-style-type:bullet;\">\n  <li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027\uff08XSS\u3001\u30d1\u30b9\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\uff09<\/li>\n  <li>\u975e\u540c\u671f\u51e6\u7406\u306e\u554f\u984c\uff08await\u6f0f\u308c\u3001\u7af6\u5408\u72b6\u614b\uff09<\/li>\n  <li>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af<\/li>\n  <li>\u975e\u63a8\u5968API\u306e\u4f7f\u7528<\/li>\n<\/ul>\n<p>\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f6\u56de\u306e\u30ec\u30d3\u30e5\u30fc\u2192\u4fee\u6b63\u30b5\u30a4\u30af\u30eb\u3067\u3001\u6df1\u523b\u306a\u554f\u984c\u30922\u4ef6\u21920\u4ef6\u306b\u524a\u6e1b\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h3 class=\"fz-ml\">\u30c6\u30b9\u30c8\u306f\u300c\u58ca\u308c\u305f\u3089\u56f0\u308b\u90e8\u5206\u300d\u3092\u512a\u5148<\/h3>\n<p>\u30ab\u30d0\u30ec\u30c3\u30b880%\u306e\u3088\u3046\u306a\u6570\u5024\u76ee\u6a19\u3088\u308a\u3001\u91cd\u8981\u306a\u6a5f\u80fd\u306e\u30c6\u30b9\u30c8\u3092\u512a\u5148\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<table class=\"table tbl-responsive\">\n  <thead>\n    <tr class=\"rung\">\n      <th>\u512a\u5148\u5ea6<\/th>\n      <td>\u30c6\u30b9\u30c8\u5bfe\u8c61<\/td>\n      <td>\u7406\u7531<\/td>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr class=\"rung\">\n      <th>\u9ad8<\/th>\n      <td>parseResults<\/td>\n      <td>DOM\u5909\u66f4\u3067\u58ca\u308c\u3084\u3059\u3044<\/td>\n    <\/tr>\n    <tr class=\"rung\">\n      <th>\u9ad8<\/th>\n      <td>URL\u751f\u6210\u30ed\u30b8\u30c3\u30af<\/td>\n      <td>\u30d0\u30b0\u308b\u3068\u691c\u7d22\u81ea\u4f53\u304c\u5931\u6557<\/td>\n    <\/tr>\n    <tr class=\"rung\">\n      <th>\u4e2d<\/th>\n      <td>\u8a2d\u5b9a\u306e\u8aad\u307f\u8fbc\u307f\u30fb\u4fdd\u5b58<\/td>\n      <td>\u30c7\u30fc\u30bf\u6d88\u5931\u3092\u9632\u3050<\/td>\n    <\/tr>\n    <tr class=\"rung\">\n      <th>\u4f4e<\/th>\n      <td>UI\u95a2\u9023<\/td>\n      <td>\u624b\u52d5\u78ba\u8a8d\u3067\u5341\u5206<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n<h3 class=\"fz-ml\">\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u6b8b\u3059<\/h3>\n<p>\u5c06\u6765\u306e\u81ea\u5206\u3084\u4ed6\u306e\u30e1\u30f3\u30d0\u30fc\u306e\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u3092\u8a18\u9332\u3057\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<ul style=\"list-style-type:bullet;\">\n  <li><b class=\"fw-600\">CHANGELOG.md<\/b>: \u5909\u66f4\u5c65\u6b74<\/li>\n  <li><b class=\"fw-600\">ERRORLOG.md<\/b>: \u30a8\u30e9\u30fc\u3068\u89e3\u6c7a\u7b56<\/li>\n  <li><b class=\"fw-600\">PATTERNS.md<\/b>: \u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30d1\u30bf\u30fc\u30f3\u96c6<\/li>\n<\/ul>\n<h2 class=\"fz-xl\">\u307e\u3068\u3081<\/h2>\n<p>\u30b9\u30af\u30ec\u30a4\u30d4\u30f3\u30b0\u30c4\u30fc\u30eb\u958b\u767a\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<ol style=\"list-style-type:decimal;\">\n  <li><b class=\"fw-600\">\u8a2d\u8a08<\/b>: \u57fa\u5e95\u30af\u30e9\u30b9\u3067\u5171\u901a\u51e6\u7406\u3092\u62bd\u51fa\u3057\u3001\u30b5\u30a4\u30c8\u56fa\u6709\u51e6\u7406\u306f\u7d99\u627f\u3067\u5b9f\u88c5<\/li>\n  <li><b class=\"fw-600\">\u5b9f\u88c5<\/b>: \u30ea\u30af\u30a8\u30b9\u30c8\u9593\u96943\u79d2\u4ee5\u4e0a\u3001\u81ea\u52d5\u30b9\u30af\u30ed\u30fc\u30eb\u3001\u8907\u6570\u30bb\u30ec\u30af\u30bf\u30fc\u5bfe\u5fdc<\/li>\n  <li><b class=\"fw-600\">\u30a8\u30e9\u30fc\u5bfe\u7b56<\/b>: URL\u5f62\u5f0f\u306f\u5b9f\u30b5\u30a4\u30c8\u78ba\u8a8d\u3001undefined\u96a0\u853d\u306b\u6ce8\u610f<\/li>\n  <li><b class=\"fw-600\">\u54c1\u8cea<\/b>: XSS\u5bfe\u7b56\u3001\u30c7\u30a3\u30fc\u30d7\u30af\u30ed\u30fc\u30f3\u3001\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u5bfe\u7b56<\/li>\n  <li><b class=\"fw-600\">\u898f\u7d04\u9075\u5b88<\/b>: 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