破解tinypng文件上传的限制

article/2025/9/9 4:56:38

简单破解tinypng文件上传的限制

/** * 帮助文档* -------* * 获取帮助* 指令 -h* * 获取命令执行文件夹 * 指令 -f * 参数 ./* 必填，待处理的图片文件夹* * 获取是否深度递归处理图片文件夹* 指令 -deep* 可选，默认不深度递归* * 命令行脚本参考示例* > node ./脚本.js -f ./图片文件夹 -deep*  */const fs = require('fs');const path = require('path');const https = require('https');const URL = require('url').URL;const EventEmitter = require('events');const err = msg => new EventEmitter().emit('error', msg);if (getHelp()) return false;const conf = {files: [],EntryFolder: getEntryFolder(),DeepLoop: getDeepLoop(),Exts: ['.jpg', '.png'],Max: 5200000, // 5MB == 5242848.754299136}fileFilter(conf.EntryFolder)console.log("本次执行脚本的配置：", conf);console.log("等待处理文件的数量:", conf.files.length)conf.files.forEach(img => fileUpload(img)); 工具函数/*** 获取帮助命令* 指令 -h*/function getHelp() {let i = process.argv.findIndex(i => i === "-h");if (i !== -1) {return true;}}/*** 获取命令执行文件夹 * 指令 -f * 参数 ./* 必填，待处理的图片文件夹*/function getEntryFolder() {let i = process.argv.findIndex(i => i === "-f");if (i === -1 || !process.argv[i + 1]) return err('获取命令执行文件夹：失败');return process.argv[i + 1];}/*** 获取是否深度递归处理图片文件夹* 指令 -deep* 可选，默认不深度递归*/function getDeepLoop() {return process.argv.findIndex(i => i === "-deep") !== -1;}/*** 过滤待处理文件夹，得到待处理文件列表* @param {*} folder 待处理文件夹* @param {*} files 待处理文件列表*/function fileFilter(folder) {// 读取文件夹fs.readdirSync(folder).forEach(file => {let fullFilePath = path.join(folder, file)// 读取文件信息let fileStat = fs.statSync(fullFilePath);// 过滤文件安全性/大小限制/后缀名if (fileStat.size <= conf.Max && fileStat.isFile() && conf.Exts.includes(path.extname(file))) conf.files.push(fullFilePath);// 是都要深度递归处理文件夹else if (conf.DeepLoop && fileStat.isDirectory()) fileFilter(fullFilePath);});}/*** TinyPng 远程压缩 HTTPS 请求的配置生成方法*/function getAjaxOptions() {return {method: 'POST',hostname: 'tinypng.com',path: '/web/shrink',headers: {rejectUnauthorized: false,"X-Forwarded-For": Array(4).fill(1).map(() => parseInt(Math.random() * 254 + 1)).join('.'),'Postman-Token': Date.now(),'Cache-Control': 'no-cache','Content-Type': 'application/x-www-form-urlencoded','User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36'}}}/*** TinyPng 远程压缩 HTTPS 请求* @param {string} img 待处理的文件* @success {*              "input": { "size": 887, "type": "image/png" },*              "output": { "size": 785, "type": "image/png", "width": 81, "height": 81, "ratio": 0.885, "url": "https://tinypng.com/web/output/7aztz90nq5p9545zch8gjzqg5ubdatd6" }*           }* @error  {"error": "Bad request", "message" : "Request is invalid"}*/function fileUpload(imgPath) {let req = https.request(getAjaxOptions(), (res) => {res.on('data', buf => {let obj = JSON.parse(buf.toString());if (obj.error) console.log(`压缩失败！\n 当前文件：${imgPath} \n ${obj.message}`);else fileUpdate(imgPath, obj);});});req.write(fs.readFileSync(imgPath), 'binary');req.on('error', e => console.error(`请求错误! \n 当前文件：${imgPath} \n`, e));req.end();}// 该方法被循环调用,请求图片数据function fileUpdate(entryImgPath, obj) {let options = new URL(obj.output.url);let req = https.request(options, res => {let body = '';res.setEncoding('binary');res.on('data', (data) => body += data);res.on('end', () => {fs.writeFile(entryImgPath, body, 'binary', err => {if (err) return console.error(err);let log = "压缩成功"log += `优化比例: ${ (( 1 - obj.output.ratio) * 100).toFixed(2) }%`log += `原始大小: ${ (obj.input.size / 1024).toFixed(2) }KB`log += `压缩大小: ${ (obj.output.size / 1024).toFixed(2) }KB`log += `文件：${entryImgPath}`console.log(log);});});});req.on('error', e => console.error(e));req.end();}// node ./tinypng.js -f ./static/smp/m/course_task