Automatically backup tieba posts in a single click
当前为
// ==UserScript==
// @name Tieba Post Backup Tool
// @namespace https://github.com/ZXPrism/TiebaPostBackupTool
// @version 1.0.0
// @description Automatically backup tieba posts in a single click
// @author ZXP4
// @license MIT
// @match https://tieba.baidu.com/p/*
// @grant GM_registerMenuCommand
// @require https://cdnjs.cloudflare.com/ajax/libs/jszip/3.9.1/jszip.min.js
// ==/UserScript==
/******/ (() => { // webpackBootstrap
/******/ "use strict";
/******/ var __webpack_modules__ = ({
/***/ 916:
/***/ ((__unused_webpack_module, exports) => {
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.Database = void 0;
class Database {
constructor() {
this._DB = null;
this._DBName = "TiebaPostBackupToolDB";
this._TableName = "PostDB";
this.AddPost = (post) => {
return new Promise(async (resolve, reject) => {
try {
const db = this._DB ?? await this.OpenDatabase();
const transaction = db.transaction([this._TableName], "readwrite");
const store = transaction.objectStore(this._TableName);
const request = store.put(post);
request.onsuccess = () => {
resolve();
};
request.onerror = (event) => {
reject(`无法增加新条目：${event.target}！`);
};
}
catch (error) {
reject(error);
}
});
};
}
OpenDatabase() {
return new Promise((resolve, reject) => {
try {
const request = indexedDB.open(this._DBName);
request.onsuccess = (event) => {
this._DB = request.result;
resolve(this._DB);
};
request.onerror = (event) => {
reject(`无法打开数据库：${event.target.error}`);
};
request.onupgradeneeded = (event) => {
const db = event.target.result;
if (!db.objectStoreNames.contains(this._TableName)) {
db.createObjectStore(this._TableName, { keyPath: "postInfo.postID" });
}
};
}
catch (error) {
reject(error);
}
});
}
;
GetPost(postID) {
return new Promise(async (resolve, reject) => {
try {
const db = this._DB ?? await this.OpenDatabase();
const transaction = db.transaction([this._TableName], "readonly");
const store = transaction.objectStore(this._TableName);
const request = store.get(postID);
request.onsuccess = () => {
resolve(request.result);
};
request.onerror = (event) => {
reject(`无法获取条目：${event.target.error}`);
};
}
catch (error) {
reject(error);
}
});
}
DeletePost(postID) {
return new Promise(async (resolve, reject) => {
try {
const db = this._DB ?? await this.OpenDatabase();
const transaction = db.transaction([this._TableName], "readwrite");
const store = transaction.objectStore(this._TableName);
const request = store.delete(postID);
request.onsuccess = () => {
resolve();
};
request.onerror = (event) => {
reject(`无法删除条目：${event.target.error}`);
};
}
catch (error) {
reject(error);
}
});
}
}
exports.Database = Database;
;
/***/ }),
/***/ 408:
/***/ (function(__unused_webpack_module, exports, __webpack_require__) {
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.Markdown = void 0;
const jszip_1 = __importDefault(__webpack_require__(511));
class Markdown {
constructor() {
this._MarkdownData = [];
this._ImagePathDict = new Map();
}
Header(level, header) {
if (level < 1 || level > 6) {
throw new Error(`非法的 level: ${level}`);
}
this._MarkdownData.push(`${"#".repeat(level)} ${header}\n\n`);
}
TableHeader(header) {
this._MarkdownData.push(`| ${header.join(" | ")} |\n`);
const align = new Array(header.length).fill("---");
this._MarkdownData.push(`| ${align.join(" | ")} |\n`);
}
TableData(data) {
this._MarkdownData.push(`| ${data.join(" | ")} |\n`);
}
Text(text) {
this._MarkdownData.push(`${this._ResolveTags(text)}\n\n`);
}
Quote(text) {
this._MarkdownData.push(`> ${this._ResolveTags(text)}\n\n`);
}
Image(imgPath, imgMissingText) {
this._MarkdownData.push(`\n\n`);
}
URL(url) {
this._MarkdownData.push(`URL: [${url}](${url})\n\n`);
}
Separator() {
this._MarkdownData.push("---\n\n");
}
async Generate(filename) {
let zip = new jszip_1.default();
const imgFolder = zip.folder("img");
if (!imgFolder) {
throw new Error("无法创建文件夹！");
}
for (const [imgSrc, imgPath] of this._ImagePathDict) {
const imageData = await this._DownloadImage(imgSrc);
imgFolder.file(imgPath, imageData);
}
zip.file(`${filename}.md`, this._MarkdownData.join(""));
const file = await zip.generateAsync({ type: "blob" });
const link = document.createElement("a");
link.href = URL.createObjectURL(file);
link.download = `${filename}.zip`;
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
}
_ResolveTags(text) {
const regexpExt = /(.+?\.)+(\w+)/g;
const regexpCORS = /(gsp0\.baidu|(tb1|tb2)\.bdstatic)\.com/;
return text
.replace(/<img[^>]*?src="(.+?)"[^>]*>/g, (match, p1, offset) => {
// 获得图像扩展名
const matchExt = Array.from(p1.matchAll(regexpExt));
if (matchExt.length == 0) {
throw new Error("无法获得图像扩展名！");
}
const ext = matchExt[0][2];
// 统一为 HTTPS 协议（否则下载图片可能失败）
p1 = p1.replace(/http\b/, "https");
// 对于某些图片（通常是贴吧表情），由于下载会触发 CORS
// 而且也没有盗链限制，所以直接使用原链接，不另行下载
const matchCORS = p1.match(regexpCORS);
if (matchCORS) {
return `\n`;
}
else {
if (!this._ImagePathDict.has(p1)) {
this._ImagePathDict.set(p1, `${this._ImagePathDict.size}.${ext}`);
}
return `\n})\n`;
}
})
.replace("<br>", "\n")
.replace(/<[^>]*>/g, "") // 去除所有 html tag。FIX：可能会误伤正常内容..
.replace("点击展开，查看完整图片", "");
}
async _DownloadImage(url) {
const response = await fetch(url);
if (!response.ok) {
throw new Error(`无法下载图片： ${url}`);
}
return await response.blob();
}
}
exports.Markdown = Markdown;
;
/***/ }),
/***/ 118:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.Parser = void 0;
const Markdown_1 = __webpack_require__(408);
const Database_1 = __webpack_require__(916);
class Parser {
constructor() {
this._PostURLPrefix = "https://tieba.baidu.com/p";
this._Markdown = new Markdown_1.Markdown();
this._Database = new Database_1.Database();
}
/**
* 重置数据库。
*/
Reset() {
sessionStorage.clear();
}
/**
* 检查当前是否处于多页解析流程中
* 如果是，则自动开始解析当前页，并返回 `true`，此时不显示解析按钮，防止误触
* 如果不是，则什么也不做，并返回 `false`
*/
ContinueParse() {
const postInfo = this._ParsepostInfo();
// 检查当前是否处于多页解析流程中
const postID = postInfo.postID;
const status = sessionStorage.getItem(postID);
if (status) {
this.Parse();
return true;
}
return false;
}
/**
* 解析贴子。
* 1. 获取贴子的基本信息
* 2. 解析所有主楼回复以及楼中楼回复
* 3. 自动跳转至下一页进行解析
*/
async Parse() {
// 打开数据库
await this._Database.OpenDatabase();
// 获取贴子的基本信息
const postInfo = this._ParsepostInfo();
const postID = postInfo.postID;
const postCurrPage = postInfo.postCurrPage;
let postObj = {
postInfo: postInfo,
replies: []
};
if (!sessionStorage.getItem(postID)) { // 若还未设置多页解析流程标志
sessionStorage.setItem(postID, "YES");
// 创建数据库新条目
postObj.postInfo = postInfo;
await this._Database.AddPost(postObj);
alert(`[TiebaPostBackupTool] 提示：备份过程中请勿操作本页面（如滚动页面、点击链接等）。\n预计花费时间：${postInfo.postReplyNum / 2}秒`);
if (postCurrPage != 1) { //如果不在第一页，则自动跳转到第一页
window.location.href = `${this._PostURLPrefix}/${postID}`;
return;
}
}
// 从数据库中获得 Post 对象
postObj = await this._Database.GetPost(postID);
// 模拟滚动屏幕以加载全部内容
await this._SimulateScroll();
// 解析所有主楼回复以及楼中楼回复
const replies = this._ParseReplies();
// 更新 Post 对象
postObj.replies.push(...replies);
// 判断是否为最后一页
if (postCurrPage != postInfo.postPageNum) { // 自动跳转至下一页进行解析
await this._Database.AddPost(postObj); // 更新数据库对应条目
window.location.href = `${this._PostURLPrefix}/${postID}?pn=${postCurrPage + 1}`;
}
else {
// 最后一页已处理完毕，写入 Markdown
await this._SaveToMarkdown(postObj);
// 删除数据库对应条目
this._Database.DeletePost(postID);
// 清除多页解析流程标志
sessionStorage.removeItem(postID);
alert("备份成功！");
}
}
/**
* 获取贴子的基本信息，包括：
* 1. 标题 `postTitle`
* 2. 所属贴吧 `postTieba`
* 3. ID `postID`
* 4. 页数 `postPageNum`
* 5. 当前所在页 `postCurrPage`
* 6. 回复数 `postReplyNum`
*/
_ParsepostInfo() {
// 获取标题
const postTitleElement = document.querySelector(".core_title_txt");
if (!postTitleElement) {
throw new Error("无法获取贴子标题！");
}
const postTitle = postTitleElement.textContent?.trim() ?? "N/A"; // 贴子标题
// 获取所属贴吧
const postTiebaElement = document.querySelector("a.card_title_fname");
if (!postTiebaElement) {
throw new Error("无法获取所属贴吧！");
}
const postTieba = postTiebaElement.textContent?.trim() ?? "N/A"; // 所属贴吧
// 获取贴子 ID
const regexpPostID = /\d+/;
const matchPostID = window.location.href.match(regexpPostID);
if (!matchPostID) {
throw new Error("无法获取贴子 ID！");
}
const postID = matchPostID[0]; // 贴子 ID
// 获取页数和回复数
const postStatusElement = document.querySelector("ul.l_posts_num");
if (!postStatusElement) {
throw new Error("无法获取贴子状态！");
}
const postStatus = postStatusElement.textContent ?? "N/A";
const regexpPostStatus = /(\d+)回复贴，共(\d+)页/g;
const matchPostStatus = Array.from(postStatus.matchAll(regexpPostStatus));
if (matchPostStatus.length == 0) {
throw new Error("无法获取页数和回复数！");
}
const postReplyNum = parseInt(matchPostStatus[0][1]); // 回复数
const postPageNum = parseInt(matchPostStatus[0][2]); // 页数
// 获取当前所在页
let postCurrPage = 1;
if (postPageNum != 1) {
const postCurrPageElement = postStatusElement.querySelector("span.tP");
if (!postCurrPageElement) {
throw new Error("无法获取当前所在页！");
}
postCurrPage = parseInt(postCurrPageElement.textContent ?? "-1"); // 当前所在页
}
return {
postTitle: postTitle,
postTieba: postTieba,
postID: postID,
postPageNum: postPageNum,
postCurrPage: postCurrPage,
postReplyNum: postReplyNum
};
}
/**
* 解析贴子的所有回复。
* 1. 通过选择器获取每一层楼（主楼）的回复
* 2. 对于每个回复，调用 `_ParseMainReply(...)` 分别进行解析
*/
_ParseReplies() {
let replies = [];
const mainReplies = document.querySelectorAll("div.l_post");
mainReplies.forEach((mainReply) => {
if (mainReply.getAttribute("data-field") != "{}") { // 跳过广告楼层
replies.push(this._ParseMainReply(mainReply));
}
});
return replies;
}
/**
* 解析主楼回复 `mainReply`。
* 1. 用户名 `author`
* 2. 回复时间 `replyTime`
* 3. 回复内容 `replyContent`
* 4. 楼层号 `floor`
* 5. 通过选择器获得所有楼中楼回复（可能不存在）
* 6. 对于每个楼中楼回复，调用 `_ParseSubReply(...)` 分别进行解析
*/
_ParseMainReply(mainReply) {
let mainReplyObj = {
author: "",
replyTime: "",
replyContent: "",
floor: -1,
subReplies: []
};
// 获取用户名
const authorElement = mainReply.querySelector("a.p_author_name");
if (!authorElement) {
throw new Error("无法获取用户名！");
}
mainReplyObj.author = authorElement.textContent ?? "N/A"; // 用户名
// 获取回复内容
const replyContentElement = mainReply.querySelector("div.d_post_content");
if (!replyContentElement) {
throw new Error("无法获取回复内容！");
}
mainReplyObj.replyContent = replyContentElement.innerHTML.trim(); // 回复内容
// 获取回复时间和楼层号
const replyStatus = mainReply.querySelector("div.core_reply_tail")?.innerHTML;
if (!replyStatus) {
throw new Error("无法获取回复状态！");
}
const regexpReplyTime = /\d{4}-\d{2}-\d{2} \d{2}:\d{2}/;
const matchReplyTime = replyStatus.match(regexpReplyTime);
if (!matchReplyTime) {
throw new Error("无法获取回复时间！");
}
mainReplyObj.replyTime = matchReplyTime[0]; // 回复时间
const regexFloor = /(\d+)楼/g;
const matchFloor = Array.from(replyStatus.matchAll(regexFloor));
if (matchFloor.length == 0) {
throw new Error("无法获取楼层号！");
}
mainReplyObj.floor = parseInt(matchFloor[0][1]); // 楼层号
// console.log(`用户名：${mainReplyObj.author}`);
// console.log(`回复内容：${mainReplyObj.replyContent}`);
// console.log(`回复时间：${mainReplyObj.replyTime}`);
// console.log(`楼层号：${mainReplyObj.floor}`);
// 解析所有楼中楼回复
const subReplies = mainReply.querySelectorAll(".lzl_cnt").forEach((subReply) => {
mainReplyObj.subReplies.push(this._ParseSubReply(subReply));
});
// console.log("===");
return mainReplyObj;
}
/**
* 解析楼中楼回复 `subReply`。
* 1. 用户名 `author`
* 2. 回复时间 `replyTime`
* 3. 回复内容 `replyContent`
*/
_ParseSubReply(subReply) {
let subReplyObj = {
author: "",
replyTime: "",
replyContent: ""
};
// 获取用户名
const authorElement = subReply.querySelector("a.j_user_card ");
if (!authorElement) {
throw new Error("无法获取楼中楼用户名！");
}
subReplyObj.author = authorElement.textContent ?? "N/A"; // 用户名
// 获取回复时间
const replyTimeElement = subReply.querySelector("span.lzl_time");
if (!replyTimeElement) {
throw new Error("无法获取楼中楼回复时间！");
}
subReplyObj.replyTime = replyTimeElement.textContent ?? "N/A"; // 回复时间
// 获取回复内容
const replyContentElement = subReply.querySelector("span.lzl_content_main");
if (!replyContentElement) {
throw new Error("无法获取楼中楼回复内容！");
}
const replyTextRaw = replyContentElement.innerHTML.trim(); // 回复内容
const regexpRemoveUserLink = /<a [^>]*>(.*?)<\/a>/;
subReplyObj.replyContent = replyTextRaw.replace(regexpRemoveUserLink, "$1");
console.log("## 楼中楼 ##");
console.log(`用户名：${subReplyObj.author}`);
console.log(`回复内容：${subReplyObj.replyContent}`);
console.log(`回复时间：${subReplyObj.replyTime}`);
return subReplyObj;
}
/**
* 模拟滚动屏幕以加载全部内容。
*/
_SimulateScroll() {
return new Promise(resolve => {
window.scrollTo(0, 0);
const task = setInterval(() => {
window.scrollBy(0, 100);
const maxScroll = document.documentElement.scrollHeight - window.innerHeight;
if (window.scrollY + window.innerHeight >= maxScroll) {
// 等待一段时间，确保最后一层楼加载成功
setTimeout(() => {
clearInterval(task);
resolve();
}, 100);
}
}, 100);
});
}
async _SaveToMarkdown(postObj) {
const md = this._Markdown;
md.Header(1, postObj.postInfo.postTitle);
md.URL(`${this._PostURLPrefix}/${postObj.postInfo.postID}`);
md.TableHeader(["贴吧", "楼层数", "回复数"]);
md.TableData([
postObj.postInfo.postTieba,
postObj.replies.length.toString(),
postObj.postInfo.postReplyNum.toString()
]);
md.Header(2, "正文");
postObj.replies.forEach((mainReply) => {
md.Header(3, `${mainReply.floor} 楼`);
md.Text(`**${mainReply.author}** 于 ${mainReply.replyTime}`);
md.Quote(mainReply.replyContent);
if (mainReply.subReplies.length > 0) {
md.Header(4, "楼中楼");
}
mainReply.subReplies.forEach((subReply) => {
md.Separator();
md.Text(`**${subReply.author}** 于 ${subReply.replyTime}`);
md.Quote(subReply.replyContent);
});
});
await md.Generate(`${postObj.postInfo.postTitle}`);
}
}
exports.Parser = Parser;
;
/***/ }),
/***/ 511:
/***/ ((module) => {
module.exports = JSZip;
/***/ })
/******/ });
/************************************************************************/
/******/ // The module cache
/******/ var __webpack_module_cache__ = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/ // Check if module is in cache
/******/ var cachedModule = __webpack_module_cache__[moduleId];
/******/ if (cachedModule !== undefined) {
/******/ return cachedModule.exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = __webpack_module_cache__[moduleId] = {
/******/ // no module.id needed
/******/ // no module.loaded needed
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ __webpack_modules__[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/************************************************************************/
var __webpack_exports__ = {};
// This entry needs to be wrapped in an IIFE because it uses a non-standard name for the exports (exports).
(() => {
var exports = __webpack_exports__;
var __webpack_unused_export__;
__webpack_unused_export__ = ({ value: true });
const Parser_1 = __webpack_require__(118);
(function () {
'use strict';
const parser = new Parser_1.Parser();
GM_registerMenuCommand("重置（出现 BUG 时使用）", () => {
parser.Reset();
});
window.addEventListener("load", () => {
if (!parser.ContinueParse()) {
GM_registerMenuCommand("备份当前贴子", () => {
parser.Parse();
});
}
});
})();
})();
/******/ })()
;
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