Cnki Download

cookjohn/cnki-skills/skills/cnki-download

by cookjohn20d65f660456daf53ad0f7c74494ac3b829b925fNo license983 starsListed Oct 9, 2026Updated Oct 9, 2026Repository updated 7 months ago

Download a paper PDF/CAJ from CNKI. Requires user to be logged in. Use when user wants to download a specific paper.

Instructions onlyProductivity & Workflow

AI-generated overview

Downloads a CNKI paper PDF or CAJ file from a paper detail page using browser automation.

What it does: This skill guides an agent through downloading a specific paper from CNKI by navigating to a paper detail URL and running a browser script that waits for the page, checks for a captcha and login state, then clicks the PDF or CAJ download link. It reports the paper title and whether the download was triggered, or returns an error such as not logged in, captcha required, or no download link found. It also documents verified page selectors and captcha detection logic.
When to use it: Use when a user wants to download a specific CNKI paper and is already logged in with download permissions. It fits cases where the user supplies a paper detail URL or is already on the paper detail page.
Requirements: Requires a browser automation environment with navigate_page and evaluate_script tools, an active CNKI login with download permissions, and network access to CNKI. No scripts ship with the skill; it is instructions only.

CNKI Paper Download (文献下载)

Prerequisites

User must be logged in to CNKI with download permissions.

Arguments

$ARGUMENTS is optionally a paper detail URL. If blank, uses current page.

Steps

1. Navigate (if URL provided)

If URL provided: use navigate_page to go to the URL directly (no wait_for needed — Step 2 handles waiting).

Important: Always use navigate_page instead of clicking links on the search results page. Clicking opens a new tab and wastes 3 extra tool calls (list_pages + select_page + take_snapshot).

2. Check status and download (single async evaluate_script)

Replace FORMAT with "pdf" or "caj":

javascript

async () => {  // Wait for page load  await new Promise((r, j) => {    let n = 0;    const c = () => {      if (document.querySelector('.brief h1')) r();      else if (++n > 30) j('timeout');      else setTimeout(c, 500);    };    c();  });
  // Captcha check  const cap = document.querySelector('#tcaptcha_transform_dy');  if (cap && cap.getBoundingClientRect().top >= 0) {    return { error: 'captcha', message: 'CNKI 正在显示滑块验证码。请在 Chrome 中手动完成拼图验证。' };  }
  const format = "FORMAT"; // "pdf" or "caj"
  // Check download links  const pdfLink = document.querySelector('#pdfDown') || document.querySelector('.btn-dlpdf a');  const cajLink = document.querySelector('#cajDown') || document.querySelector('.btn-dlcaj a');
  // Check login status  const notLogged = document.querySelector('.downloadlink.icon-notlogged')    || document.querySelector('[class*="notlogged"]');  if (notLogged) {    return { error: 'not_logged_in', message: '下载需要登录。请先在 Chrome 中登录知网账号。' };  }
  const title = document.querySelector('.brief h1')?.innerText?.trim()?.replace(/\s*网络首发\s*$/, '') || '';
  if (format === 'pdf' && pdfLink) {    pdfLink.click();    return { status: 'downloading', format: 'PDF', title };  } else if (format === 'caj' && cajLink) {    cajLink.click();    return { status: 'downloading', format: 'CAJ', title };  } else if (pdfLink) {    pdfLink.click();    return { status: 'downloading', format: 'PDF', title };  } else if (cajLink) {    cajLink.click();    return { status: 'downloading', format: 'CAJ', title };  }
  return { error: 'no_download', message: '未找到下载链接', hasPDF: !!pdfLink, hasCAJ: !!cajLink };}

async () => {  // Wait for page load  await new Promise((r, j) => {    let n = 0;    const c = () => {      if (document.querySelector('.brief h1')) r();      else if (++n > 30) j('timeout');      else setTimeout(c, 500);    };    c();  });
  // Captcha check  const cap = document.querySelector('#tcaptcha_transform_dy');  if (cap && cap.getBoundingClientRect().top >= 0) {    return { error: 'captcha', message: 'CNKI 正在显示滑块验证码。请在 Chrome 中手动完成拼图验证。' };  }
  const format = "FORMAT"; // "pdf" or "caj"
  // Check download links  const pdfLink = document.querySelector('#pdfDown') || document.querySelector('.btn-dlpdf a');  const cajLink = document.querySelector('#cajDown') || document.querySelector('.btn-dlcaj a');
  // Check login status  const notLogged = document.querySelector('.downloadlink.icon-notlogged')    || document.querySelector('[class*="notlogged"]');  if (notLogged) {    return { error: 'not_logged_in', message: '下载需要登录。请先在 Chrome 中登录知网账号。' };  }
  const title = document.querySelector('.brief h1')?.innerText?.trim()?.replace(/\s*网络首发\s*$/, '') || '';
  if (format === 'pdf' && pdfLink) {    pdfLink.click();    return { status: 'downloading', format: 'PDF', title };  } else if (format === 'caj' && cajLink) {    cajLink.click();    return { status: 'downloading', format: 'CAJ', title };  } else if (pdfLink) {    pdfLink.click();    return { status: 'downloading', format: 'PDF', title };  } else if (cajLink) {    cajLink.click();    return { status: 'downloading', format: 'CAJ', title };  }
  return { error: 'no_download', message: '未找到下载链接', hasPDF: !!pdfLink, hasCAJ: !!cajLink };}

3. Report

Based on JS result:

status: downloading → "PDF 下载已触发：{title}。请在 Chrome 下载管理器中查看。"
error: not_logged_in → tell user to log in
error: captcha → tell user to solve captcha

Tool calls: 1–2 (navigate_page if URL + evaluate_script)

Verified selectors

Element	Selector	Notes
PDF download	`#pdfDown`	`<a>` inside `li.btn-dlpdf`
CAJ download	`#cajDown`	`<a>` inside `li.btn-dlcaj`
Download area	`.download-btns`	parent `<div>`
Not logged in	`.downloadlink.icon-notlogged`
Title	`.brief h1`	strip trailing "网络首发"

Captcha detection

Check #tcaptcha_transform_dy element's getBoundingClientRect().top >= 0. Only active when top >= 0 (visible). Pre-loaded SDK sits at top: -1000000px.

Source and attribution

Source:cookjohn/cnki-skillsinskills/cnki-downloadat commit20d65f6

License: No license

Content belongs to its original authors. SourceWeft indexes it from a public repository.

Report or request removal

Cnki Download

CNKI Paper Download (文献下载)

Prerequisites

Arguments

Steps

1. Navigate (if URL provided)

2. Check status and download (single async evaluate_script)

3. Report

Tool calls: 1–2 (navigate_page if URL + evaluate_script)

Verified selectors

Captcha detection

Source and attribution

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