自动滚动收集爱发电公开帖子图片/媒体链接，等加载完保存JSON并下载（仅限公开内容，遵守网站条款）
// ==UserScript==
// @name 爱发电图片批量下载器
// @namespace http://tampermonkey.net/
// @version 6.0
// @description 自动滚动收集爱发电公开帖子图片/媒体链接，等加载完保存JSON并下载（仅限公开内容，遵守网站条款）
// @author vifdi (by Grok4 Fast)
// @match https://afdian.com/*
// @match https://afdian.net/*
// @grant GM_download
// @license MIT
// ==/UserScript==
/**
* 爱发电图片批量下载
*
* 用途：辅助用户在爱发电网站自动滚动加载公开帖子，收集图片/音频/视频链接，保存为JSON文档，并下载到自定义文件夹。
* 仅支持公开内容（有权限的帖子），不绕过付费墙。
*
* 警告：
* - 此脚本仅供个人学习/使用，严禁用于商业或非法目的。
* - 使用前确保遵守爱发电服务条款（https://afdian.net/terms），勿滥用导致账号封禁。
* - 作者不承担任何法律/道德责任。
*
* MIT License: https://opensource.org/licenses/MIT
*/
(function() {
'use strict';
// 创建浮动按钮
let floatButton = document.createElement("button");
floatButton.textContent = "启动自动收集";
floatButton.style.cssText = `
position: fixed; bottom: 20px; right: 20px; z-index: 9999;
padding: 10px 20px; font-size: 1rem; color: #fff; background: #007bff;
border: none; border-radius: 5px; cursor: pointer;
`;
document.body.appendChild(floatButton);
let autoScrolling = false;
let lastXHRTime = Date.now();
let allLinks = []; // 全收集：[{title, pics: [{url, filename}]}]
let uniquePosts = new Set(); // 去重post_id
let totalPics = 0;
let hasMore = true;
let scrollCheck = 0;
let rootFolder = ''; // 自定义根文件夹
floatButton.addEventListener('click', function() {
if (!autoScrolling) {
// 弹出输入框自定义根文件夹
rootFolder = prompt("输入根文件夹名 (默认: afdian_public_dump):", "afdian_public_dump") || "afdian_public_dump";
rootFolder = rootFolder.replace(/[/\\:*?"<>|]/g, '_'); // 转义非法字符
this.textContent = "停止收集";
this.style.background = "#28a745"; // 绿色运行中
autoScrolling = true;
allLinks = [];
uniquePosts.clear();
totalPics = 0;
hasMore = true;
scrollCheck = 0;
autoScroll();
} else {
this.textContent = "启动自动收集";
this.style.background = "#007bff";
autoScrolling = false;
}
});
function autoScroll() {
if (autoScrolling) {
const prevHeight = document.body.scrollHeight;
// 渐进滚动：模拟用户行为，避免检测
window.scrollTo(0, document.body.scrollHeight);
setTimeout(() => {
if (document.body.scrollHeight === prevHeight && Date.now() - lastXHRTime > 4000 && !hasMore) {
scrollCheck++;
if (scrollCheck >= 3) { // 稳定3次=全加载
console.log("全公开帖子加载完成，开始保存JSON+下载");
saveAndDownloadAll();
autoScrolling = false;
floatButton.textContent = "收集完成";
return;
}
} else {
scrollCheck = 0;
}
setTimeout(autoScroll, 1500); // 1.5s间隔，平衡速度与安全
}, 800);
}
}
// 双重劫持XHR+Fetch
function detectRequests() {
// XHR
const originalXHROpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function(method, url) {
this.addEventListener('load', function() {
if (this.responseURL && this.responseURL.includes("/api/post/get-list")) {
lastXHRTime = Date.now();
try {
const responseData = JSON.parse(this.responseText);
hasMore = responseData.data?.has_more || false;
handleResponseData(responseData);
} catch (e) {
console.error("XHR解析失败: ", e);
}
}
});
return originalXHROpen.apply(this, arguments);
};
// Fetch
const originalFetch = window.fetch;
window.fetch = function(...args) {
return originalFetch.apply(this, args).then(response => {
const url = args[0];
if (url && url.includes("/api/post/get-list")) {
lastXHRTime = Date.now();
return response.clone().text().then(text => {
try {
const responseData = JSON.parse(text);
hasMore = responseData.data?.has_more || false;
handleResponseData(responseData);
} catch (e) {
console.error("Fetch解析失败: ", e);
}
return response;
});
}
return response;
});
};
}
function handleResponseData(data) {
const list = data.data?.list || [];
list.forEach((item) => {
const postId = item.post_id;
// 开源合法：只处理有权限的公开帖
if (item.has_right_errMsg !== null || uniquePosts.has(postId)) return;
uniquePosts.add(postId);
// 无title用content作为文件夹名（截取50字符）
let title = item.title || (item.content ? item.content.substring(0, 50) : `post_${postId}`);
title = title.replace(/[/\\:*?"<>|]/g, '_');
const pics = item.pics || [];
console.log(`收集公开帖子: ${title}, ${pics.length} 张图片`);
allLinks.push({
title,
pics: pics.map((url, idx) => {
const ext = url.split('.').pop().split('?')[0] || 'jpg';
return { url, filename: `${title}_${idx + 1}.${ext}` };
})
});
totalPics += pics.length;
// 支持audio/video
if (item.audio) allLinks[allLinks.length - 1].audio = { url: item.audio, filename: `${title}_audio.mp3` };
if (item.video) allLinks[allLinks.length - 1].video = { url: item.video, filename: `${title}_video.mp4` };
});
floatButton.textContent = `收集中: ${totalPics} 张 (剩余: ${hasMore ? '有' : '无'})`;
}
function saveAndDownloadAll() {
try {
// 保存JSON到根
const jsonData = JSON.stringify(allLinks, null, 2);
const blob = new Blob([jsonData], { type: 'application/json' });
const blobUrl = URL.createObjectURL(blob);
GM_download({
url: blobUrl,
name: `${rootFolder}/afdian_public_links.json`,
saveAs: false
});
console.log(`JSON文档保存完成 (根: ${rootFolder})`);
// 批量下载到根/子文件夹
allLinks.forEach(post => {
const subFolder = `${rootFolder}/${post.title}`;
post.pics?.forEach(pic => {
GM_download({
url: pic.url,
name: `${subFolder}/${pic.filename}`,
saveAs: false
});
});
if (post.audio) {
GM_download({
url: post.audio.url,
name: `${subFolder}/${post.audio.filename}`,
saveAs: false
});
}
if (post.video) {
GM_download({
url: post.video.url,
name: `${subFolder}/${post.video.filename}`,
saveAs: false
});
}
});
console.log(`批量下载启动: ${totalPics} 张图片 + 其他 (仅公开内容)`);
} catch (e) {
console.error("下载过程出错: ", e);
alert("下载出错，请检查控制台");
}
}
detectRequests();
console.log("爱发电图片批量下载 加载完成 - 仅公开内容，遵守条款");
})();