// ==UserScript==
// @name 番茄小说下载器
// @author 尘醉
// @version 2025.04.25.7
// @description 番茄小说下载
// @description:zh-cn 番茄小说下载
// @description:en Fanqienovel Downloader (Large Display)
// @license MIT
// @match https://fanqienovel.com/*
// @require https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js
// @icon https://img.onlinedown.net/download/202102/152723-601ba1db7a29e.jpg
// @grant GM_xmlhttpRequest
// @grant GM_addStyle
// @connect api5-normal-sinfonlineb.fqnovel.com
// @connect i.snssdk.com
// @namespace https://github.com/tampermonkey
// ==/UserScript==
(function() {
'use strict';
// 配置常量
const CONFIG = {
REG_KEY: "ac25c67ddd8f38c1b37a2348828e222e",
INSTALL_ID: "4427064614339001",
SERVER_DEVICE_ID: "4427064614334905",
AID: "1967",
VERSION_CODE: "62532",
MAX_CONCURRENT: 20, //批量下载数量
RETRY_TIMES: 5, //重试次数
RETRY_DELAY: 500 //重试延迟
};
// 界面样式
GM_addStyle(`.tamper-container{position:fixed;top:220px;right:20px;background:#fff;border-radius:10px;box-shadow:0 4px 12px rgba(0,0,0,0.1);padding:15px;z-index:9999;width:200px;font-size:14px;line-height:1.3}.tamper-button{background:#ff6b00;color:#fff;border:none;border-radius:20px;padding:10px 20px;margin:10px 0;cursor:pointer;font-size:14px;font-weight:bold;transition:all 0.2s;width:100%;text-align:center}.tamper-button:hover{background:#ff5500}.tamper-button:disabled{background:#ccc;cursor:not-allowed}.stats-container{display:flex;justify-content:space-between;margin-top:15px;font-size:12px}.stat-item{display:flex;flex-direction:column;align-items:center;flex:1;padding:5px}.stat-label{margin-bottom:5px;color:#666}.stat-value{font-weight:bold;font-size:16px}.total-value{color:#333}.success-value{color:#4CAF50}.failed-value{color:#F44336}`);
// 加密解密类
class FqCrypto {
constructor(key) {
this.key = this.hexToBytes(key);
if (this.key.length !== 16) {
throw new Error(`Invalid key length! Expected 16 bytes, got ${this.key.length}`);
}
this.cipherMode = { name: 'AES-CBC' };
}
hexToBytes(hex) {
const bytes = [];
for (let i = 0; i < hex.length; i += 2) {
bytes.push(parseInt(hex.substr(i, 2), 16));
}
return new Uint8Array(bytes);
}
bytesToHex(bytes) {
return Array.from(bytes).map(b => b.toString(16).padStart(2, '0')).join('');
}
async encrypt(data, iv) {
const cryptoKey = await crypto.subtle.importKey(
'raw',
this.key,
{ name: 'AES-CBC' },
false,
['encrypt']
);
const encrypted = await crypto.subtle.encrypt(
{ name: 'AES-CBC', iv },
cryptoKey,
this.pkcs7Pad(data)
);
return new Uint8Array(encrypted);
}
async decrypt(data) {
const iv = data.slice(0, 16);
const ct = data.slice(16);
const cryptoKey = await crypto.subtle.importKey(
'raw',
this.key,
{ name: 'AES-CBC' },
false,
['decrypt']
);
const decrypted = await crypto.subtle.decrypt(
{ name: 'AES-CBC', iv },
cryptoKey,
ct
);
return this.pkcs7Unpad(new Uint8Array(decrypted));
}
pkcs7Pad(data) {
const blockSize = 16;
const padding = blockSize - (data.length % blockSize);
const padded = new Uint8Array(data.length + padding);
padded.set(data);
for (let i = data.length; i < padded.length; i++) {
padded[i] = padding;
}
return padded;
}
pkcs7Unpad(data) {
const padding = data[data.length - 1];
if (padding > 16) return data;
for (let i = data.length - padding; i < data.length; i++) {
if (data[i] !== padding) return data;
}
return data.slice(0, data.length - padding);
}
async generateRegisterContent(deviceId, strVal = "0") {
if (!/^\d+$/.test(deviceId) || !/^\d+$/.test(strVal)) {
throw new Error("Invalid device ID or value");
}
const deviceIdBytes = new Uint8Array(8);
/* global BigInt */
const deviceIdNum = BigInt(deviceId);
for (let i = 0; i < 8; i++) {
deviceIdBytes[i] = Number((deviceIdNum >> BigInt(i * 8)) & BigInt(0xFF));
}
const strValBytes = new Uint8Array(8);
const strValNum = BigInt(strVal);
for (let i = 0; i < 8; i++) {
strValBytes[i] = Number((strValNum >> BigInt(i * 8)) & BigInt(0xFF));
}
const combined = new Uint8Array([...deviceIdBytes, ...strValBytes]);
const iv = crypto.getRandomValues(new Uint8Array(16));
const encrypted = await this.encrypt(combined, iv);
const result = new Uint8Array([...iv, ...encrypted]);
return btoa(String.fromCharCode(...result));
}
}
// API客户端类
class FqClient {
constructor(config) {
this.config = config;
this.crypto = new FqCrypto(config.REG_KEY);
this.dynamicKey = null;
this.keyExpireTime = 0;
this.requestQueue = [];
this.activeRequests = 0;
}
async throttledApiRequest(method, endpoint, params = {}, data = null) {
return new Promise((resolve, reject) => {
const execute = async () => {
try {
this.activeRequests++;
const result = await this._apiRequest(method, endpoint, params, data);
resolve(result);
} catch (error) {
reject(error);
} finally {
this.activeRequests--;
this.processQueue();
}
};
if (this.activeRequests < CONFIG.MAX_CONCURRENT) {
execute();
} else {
this.requestQueue.push(execute);
}
});
}
processQueue() {
while (this.requestQueue.length > 0 && this.activeRequests < CONFIG.MAX_CONCURRENT) {
const nextRequest = this.requestQueue.shift();
nextRequest();
}
}
async _apiRequest(method, endpoint, params = {}, data = null) {
const url = new URL(`https://api5-normal-sinfonlineb.fqnovel.com${endpoint}`);
Object.keys(params).forEach(key => url.searchParams.append(key, params[key]));
const headers = {
"Cookie": `install_id=${this.config.INSTALL_ID}`,
"User-Agent": "okhttp/4.9.3"
};
if (data) {
headers["Content-Type"] = "application/json";
}
return new Promise((resolve, reject) => {
GM_xmlhttpRequest({
method: method,
url: url.toString(),
headers: headers,
data: data ? JSON.stringify(data) : undefined,
onload: (response) => {
if (response.status >= 200 && response.status < 300) {
try {
resolve(JSON.parse(response.responseText));
} catch (e) {
reject(new Error(`Failed to parse response: ${e.message}`));
}
} else {
reject(new Error(`API request failed with status ${response.status}`));
}
},
onerror: (error) => {
reject(new Error(`API request error: ${error.error}`));
},
timeout: 10000
});
});
}
async getContentKeys(itemIds) {
const itemIdsStr = Array.isArray(itemIds) ? itemIds.join(',') : itemIds;
return this.throttledApiRequest(
"GET",
"/reading/reader/batch_full/v",
{
item_ids: itemIdsStr,
req_type: "1",
aid: this.config.AID,
update_version_code: this.config.VERSION_CODE
}
);
}
async getDecryptionKey() {
const now = Date.now();
if (this.dynamicKey && this.keyExpireTime > now) {
return this.dynamicKey;
}
const content = await this.crypto.generateRegisterContent(this.config.SERVER_DEVICE_ID);
const payload = {
content: content,
keyver: 1
};
const result = await this.throttledApiRequest(
"POST",
"/reading/crypt/registerkey",
{ aid: this.config.AID },
payload
);
const encryptedKey = Uint8Array.from(atob(result.data.key), c => c.charCodeAt(0));
const decryptedKey = await this.crypto.decrypt(encryptedKey);
this.dynamicKey = this.crypto.bytesToHex(decryptedKey);
this.keyExpireTime = now + 3600000;
return this.dynamicKey;
}
async decryptContent(encryptedContent) {
const dynamicKey = await this.getDecryptionKey();
const contentCrypto = new FqCrypto(dynamicKey);
const decoded = Uint8Array.from(atob(encryptedContent), c => c.charCodeAt(0));
const decrypted = await contentCrypto.decrypt(decoded);
const decompressed = await this.gunzip(decrypted);
return new TextDecoder().decode(decompressed);
}
async gunzip(data) {
/* global DecompressionStream */
const ds = new DecompressionStream('gzip');
const writer = ds.writable.getWriter();
writer.write(data);
writer.close();
return new Response(ds.readable).arrayBuffer().then(arrayBuffer => new Uint8Array(arrayBuffer));
}
}
// 辅助函数
function decodeHtmlEntities(str) {
const entities={'"':'"',''':"'",'&':'&','<':'<','>':'>'};
return str.replace(/"|'|&|<|>/g, match => entities[match]);
}
function sanitizeFilename(name) {
return name.replace(/[\\/*?:"<>|]/g, '').trim();
}
function showNotification(message, isSuccess = true) {
const notification = document.createElement('div');
notification.className = 'tamper-notification';
notification.style.cssText = `position:fixed;bottom:40px;right:40px;background-color:${isSuccess?'#4CAF50':'#F44336'};color:white;padding:30px;border-radius:10px;box-shadow:0 8px 16px rgba(0,0,0,0.2);z-index:9999;font-size:28px;animation:fadeIn 0.5s`;
notification.textContent = message;
document.body.appendChild(notification);
setTimeout(() => {
notification.style.opacity = '0';
setTimeout(() => notification.remove(), 500);
}, 3000);
}
function formatContent(content) {
let decoded = decodeHtmlEntities(content);
return decoded.replace(/<p><\/p>/g,'').replace(/<p>/g,'').replace(/<br\/?>/g,'\n').replace(/<\/p>/g,'\n').replace(/<[^>]+>/g,'').replace(/^\s+|\s+$/g,'').replace(/\n{3,}/g, '\n');
}
function createDownloadUI() {
const container = document.createElement('div');
container.className = 'tamper-container';
const btn = document.createElement('button');
btn.className = 'tamper-button';
btn.textContent = '下载全本';
container.appendChild(btn);
const statsContainer = document.createElement('div');
statsContainer.className = 'stats-container';
const totalStat = document.createElement('div');
totalStat.className = 'stat-item';
totalStat.innerHTML = `
<div class="stat-label">总章节</div>
<div class="stat-value total-value">0</div>
`;
const successStat = document.createElement('div');
successStat.className = 'stat-item';
successStat.innerHTML = `
<div class="stat-label">成功</div>
<div class="stat-value success-value">0</div>
`;
const failedStat = document.createElement('div');
failedStat.className = 'stat-item';
failedStat.innerHTML = `
<div class="stat-label">失败</div>
<div class="stat-value failed-value">0</div>
`;
statsContainer.appendChild(totalStat);
statsContainer.appendChild(successStat);
statsContainer.appendChild(failedStat);
container.appendChild(statsContainer);
document.body.appendChild(container);
return {
container,
btn,
updateStats: (total, success, failed) => {
totalStat.querySelector('.stat-value').textContent = total;
successStat.querySelector('.stat-value').textContent = success;
failedStat.querySelector('.stat-value').textContent = failed;
}
};
}
async function getBookInfo(bookId) {
const url = `https://i.snssdk.com/reading/bookapi/multi-detail/v/?aid=1967&book_id=${bookId}`;
const response = await new Promise((resolve, reject) => {
GM_xmlhttpRequest({
method: "GET",
url: url,
headers: { 'User-Agent': 'okhttp/4.9.3' },
onload: resolve,
onerror: reject,
timeout: 8000
});
});
if (response.status !== 200) throw new Error(`HTTP ${response.status}`);
const data = JSON.parse(response.responseText);
if (!data.data || !data.data[0]) throw new Error('未获取到书籍信息');
const book = data.data[0];
return {
title: sanitizeFilename(book.book_name),
author: sanitizeFilename(book.author),
abstract: book.abstract,
wordCount: book.word_number,
chapterCount: book.serial_count,
infoText: `书名：${book.book_name}\n作者：${book.author}\n字数：${parseInt(book.word_number)/10000}万字\n章节数：${book.serial_count}\n简介：${book.abstract}\n免责声明：本小说下载器仅为个人学习、研究或欣赏目的提供便利，下载的小说版权归原作者及版权方所有。若因使用本下载器导致任何版权纠纷或法律问题，使用者需自行承担全部责任。`
};
}
async function getChapters(bookId) {
const url = `https://fanqienovel.com/api/reader/directory/detail?bookId=${bookId}`;
const response = await new Promise((resolve, reject) => {
GM_xmlhttpRequest({
method: "GET",
url: url,
headers: { 'User-Agent': 'okhttp/4.9.3' },
onload: resolve,
onerror: reject,
timeout: 8000
});
});
if (response.status !== 200) throw new Error(`HTTP ${response.status}`);
const text = response.responseText;
const chapterListMatch = text.match(/"chapterListWithVolume":\[(.*?)\]]/);
if (!chapterListMatch) throw new Error('未找到章节列表');
const chapterListStr = chapterListMatch[1];
const itemIds = chapterListStr.match(/"itemId":"(.*?)"/g).map(m => m.match(/"itemId":"(.*?)"/)[1]);
const titles = chapterListStr.match(/"title":"(.*?)"/g).map(m => m.match(/"title":"(.*?)"/)[1]);
return itemIds.map((id, index) => ({
id: id,
title: titles[index] || `第${index+1}章`
}));
}
async function downloadChapter(client, chapter) {
try {
const encrypted = await client.getContentKeys(chapter.id);
if (!encrypted.data || !encrypted.data[chapter.id]) {
throw new Error('未获取到章节内容');
}
const decrypted = await client.decryptContent(encrypted.data[chapter.id].content);
return {
title: chapter.title,
content: formatContent(decrypted),
success: true
};
} catch (error) {
console.error(`下载章节 ${chapter.title} 失败:`, error);
return {
title: chapter.title,
content: `[下载失败: ${chapter.title}]`,
success: false
};
}
}
async function downloadAllChapters(client, bookInfo, chapters, ui) {
let content = `${bookInfo.infoText}\n\n`;
const batchSize = CONFIG.MAX_CONCURRENT;
let downloaded = 0;
let successCount = 0;
let failedCount = 0;
// 初始化统计
ui.updateStats(chapters.length, 0, 0);
// 批量下载函数
const downloadBatch = async (startIndex) => {
const endIndex = Math.min(startIndex + batchSize, chapters.length);
const batch = chapters.slice(startIndex, endIndex);
const promises = batch.map(chapter =>
downloadChapter(client, chapter)
.then(result => {
downloaded++;
if (result.success) {
successCount++;
} else {
failedCount++;
}
ui.updateStats(chapters.length, successCount, failedCount);
return result;
})
);
return Promise.all(promises);
};
// 分批下载所有章节
for (let i = 0; i < chapters.length; i += batchSize) {
const batchResults = await downloadBatch(i);
for (const result of batchResults) {
content += `\n\n${result.title}\n${result.content}`;
}
}
return content;
}
async function handleBookPage(client, bookId) {
// 获取书籍信息
let bookInfo, chapters;
try {
bookInfo = await getBookInfo(bookId);
chapters = await getChapters(bookId);
} catch (error) {
console.error('初始化失败:', error);
showNotification('获取书籍信息失败', false);
return;
}
// 创建下载UI
const ui = createDownloadUI();
ui.btn.addEventListener('click', async () => {
if (ui.btn.disabled) return;
ui.btn.disabled = true;
ui.btn.textContent = '准备下载...';
if (!confirm(`即将下载《${bookInfo.title}》全本，共${chapters.length}章，是否继续？`)) {
ui.btn.disabled = false;
ui.btn.textContent = '下载全本';
return;
}
ui.btn.textContent = '下载中...';
try {
const startTime = Date.now();
const content = await downloadAllChapters(client, bookInfo, chapters, ui);
const blob = new Blob([content], { type: 'text/plain;charset=utf-8' });
/* global saveAs */
saveAs(blob, `${bookInfo.title}.txt`);
const duration = ((Date.now() - startTime) / 1000).toFixed(1);
showNotification(`下载完成！共${chapters.length}章，耗时${duration}秒`);
ui.btn.textContent = '下载完成';
} catch (error) {
console.error('下载失败:', error);
showNotification('下载失败: ' + error.message, false);
ui.btn.textContent = '下载失败';
} finally {
ui.btn.disabled = true;
}
});
}
// 主入口
async function main() {
const pathMatch = window.location.pathname.match(/\/page\/(\d+)/);
if (!pathMatch) return;
const bookId = pathMatch[1];
const client = new FqClient(CONFIG);
await handleBookPage(client, bookId);
}
// 启动主逻辑
if (document.readyState === 'complete' || document.readyState === 'interactive') {
setTimeout(main, 1000);
} else {
document.addEventListener('DOMContentLoaded', main);
}
})();
