劫持"中国专利审查信息查询"等类似使用PDF.js库PDF下载地址 Intercept requests to URLs containing "pdfjs/web/viewer.html?file=" and display the file parameter on the page.
目前為
// ==UserScript==
// @name PDF.JS 劫持下载 Intercept PDF.js Viewer Requests
// @namespace http://tampermonkey.net/
// @version 1.3.1
// @description 劫持"中国专利审查信息查询"等类似使用PDF.js库PDF下载地址 Intercept requests to URLs containing "pdfjs/web/viewer.html?file=" and display the file parameter on the page.
// @author CVV
// @match https://cpquery.cponline.cnipa.gov.cn/detail/index?*
// @match https://cpquery.cponline.cnipa.gov.cn/detail/fujian?*
// @grant none
// @license MIT
// ==/UserScript==
(function () {
'use strict';
let alertCount = 0; // Keeps track of the number of active alerts
// Function to create a download button and display the file parameter
function createAlertDiv(message, fileUrl) {
const alertDiv = document.createElement('div');
alertDiv.textContent = `File parameter: ${message}`;
alertDiv.style.position = 'fixed';
alertDiv.style.top = `${10 + alertCount * 80}px`; // Calculate position dynamically
alertDiv.style.left = '10px';
alertDiv.style.zIndex = '9999';
alertDiv.style.backgroundColor = 'rgba(0, 128, 0, 0.9)';
alertDiv.style.color = 'white';
alertDiv.style.padding = '10px';
alertDiv.style.borderRadius = '5px';
alertDiv.style.fontSize = '16px';
alertDiv.style.boxShadow = '0px 0px 10px rgba(0, 0, 0, 0.5)';
alertDiv.style.fontWeight = 'bold';
alertDiv.style.display = 'flex';
alertDiv.style.alignItems = 'center';
alertDiv.style.gap = '10px';
const closeButton = document.createElement('button');
closeButton.textContent = '✖';
closeButton.style.background = 'none';
closeButton.style.color = 'white';
closeButton.style.border = 'none';
closeButton.style.cursor = 'pointer';
closeButton.style.fontSize = '16px';
closeButton.style.fontWeight = 'bold';
const downloadButton = document.createElement('a');
downloadButton.textContent = 'Download';
downloadButton.href = fileUrl;
downloadButton.download = '';
downloadButton.style.background = 'white';
downloadButton.style.color = 'green';
downloadButton.style.padding = '5px 10px';
downloadButton.style.borderRadius = '5px';
downloadButton.style.textDecoration = 'none';
downloadButton.style.fontWeight = 'bold';
// Close button logic
closeButton.onclick = () => {
document.body.removeChild(alertDiv);
alertCount--; // Reduce the alert count
updateAlertPositions(); // Update the positions of remaining alerts
};
alertDiv.appendChild(downloadButton);
alertDiv.appendChild(closeButton);
document.body.appendChild(alertDiv);
alertCount++; // Increment alert count
}
// Function to update the positions of all alerts
function updateAlertPositions() {
const alerts = document.querySelectorAll('div[data-alert]');
alerts.forEach((alert, index) => {
alert.style.top = `${10 + index * 80}px`; // Recalculate position
});
}
// Intercept XMLHttpRequest
const originalOpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function (method, url, ...rest) {
console.log(`[Intercepted XMLHttpRequest] URL: ${url}`);
if (url.includes('pdfjs/web/viewer.html?file=')) {
const fileMatch = url.match(/file=([^&]+)/);
if (fileMatch && fileMatch[1]) {
const fileUrl = decodeURIComponent(fileMatch[1]);
createAlertDiv(fileUrl, fileUrl);
}
}
return originalOpen.call(this, method, url, ...rest);
};
// Intercept Fetch API
const originalFetch = window.fetch;
window.fetch = function (input, init) {
const url = typeof input === 'string' ? input : input.url;
console.log(`[Intercepted Fetch] URL: ${url}`);
if (url.includes('pdfjs/web/viewer.html?file=')) {
const fileMatch = url.match(/file=([^&]+)/);
if (fileMatch && fileMatch[1]) {
const fileUrl = decodeURIComponent(fileMatch[1]);
createAlertDiv(fileUrl, fileUrl);
}
}
return originalFetch.call(this, input, init);
};
// Monitor all network requests (including non-JS initiated)
const observer = new PerformanceObserver((list) => {
list.getEntries().forEach((entry) => {
if (entry.name.includes('pdfjs/web/viewer.html?file=')) {
console.log(`[PerformanceObserver] Network Request: ${entry.name}`);
const fileMatch = entry.name.match(/file=([^&]+)/);
if (fileMatch && fileMatch[1]) {
const fileUrl = decodeURIComponent(fileMatch[1]);
createAlertDiv(fileUrl, fileUrl);
}
}
});
});
observer.observe({ type: 'resource', buffered: true });
})();