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const https = require('https');
const http = require('http');
const stream = require('stream');
const zlib = require('zlib');
const vm = require('vm');
const PNG = require('png-js');
let UA = require('./USER_AGENTS.js').USER_AGENT;
const validatorCount = process.env.JDJR_validator_Count ? process.env.JDJR_validator_Count : 100
Math.avg = function average() {
var sum = 0;
var len = this.length;
for (var i = 0; i < len; i++) {
sum += this[i];
}
return sum / len;
};
function sleep(timeout) {
return new Promise((resolve) => setTimeout(resolve, timeout));
}
class PNGDecoder extends PNG {
constructor(args) {
super(args);
this.pixels = [];
}
decodeToPixels() {
return new Promise((resolve) => {
this.decode((pixels) => {
this.pixels = pixels;
resolve();
});
});
}
getImageData(x, y, w, h) {
const {pixels} = this;
const len = w * h * 4;
const startIndex = x * 4 + y * (w * 4);
return {data: pixels.slice(startIndex, startIndex + len)};
}
}
const PUZZLE_GAP = 8;
const PUZZLE_PAD = 10;
class PuzzleRecognizer {
constructor(bg, patch, y) {
// console.log(bg);
const imgBg = new PNGDecoder(Buffer.from(bg, 'base64'));
const imgPatch = new PNGDecoder(Buffer.from(patch, 'base64'));
// console.log(imgBg);
this.bg = imgBg;
this.patch = imgPatch;
this.rawBg = bg;
this.rawPatch = patch;
this.y = y;
this.w = imgBg.width;
this.h = imgBg.height;
}
async run() {
await this.bg.decodeToPixels();
await this.patch.decodeToPixels();
return this.recognize();
}
recognize() {
const {ctx, w: width, bg} = this;
const {width: patchWidth, height: patchHeight} = this.patch;
const posY = this.y + PUZZLE_PAD + ((patchHeight - PUZZLE_PAD) / 2) - (PUZZLE_GAP / 2);
// const cData = ctx.getImageData(0, a.y + 10 + 20 - 4, 360, 8).data;
const cData = bg.getImageData(0, posY, width, PUZZLE_GAP).data;
const lumas = [];
for (let x = 0; x < width; x++) {
var sum = 0;
// y xais
for (let y = 0; y < PUZZLE_GAP; y++) {
var idx = x * 4 + y * (width * 4);
var r = cData[idx];
var g = cData[idx + 1];
var b = cData[idx + 2];
var luma = 0.2126 * r + 0.7152 * g + 0.0722 * b;
sum += luma;
}
lumas.push(sum / PUZZLE_GAP);
}
const n = 2; // minium macroscopic image width (px)
const margin = patchWidth - PUZZLE_PAD;
const diff = 20; // macroscopic brightness difference
const radius = PUZZLE_PAD;
for (let i = 0, len = lumas.length - 2 * 4; i < len; i++) {
const left = (lumas[i] + lumas[i + 1]) / n;
const right = (lumas[i + 2] + lumas[i + 3]) / n;
const mi = margin + i;
const mLeft = (lumas[mi] + lumas[mi + 1]) / n;
const mRigth = (lumas[mi + 2] + lumas[mi + 3]) / n;
if (left - right > diff && mLeft - mRigth < -diff) {
const pieces = lumas.slice(i + 2, margin + i + 2);
const median = pieces.sort((x1, x2) => x1 - x2)[20];
const avg = Math.avg(pieces);
// noise reducation
if (median > left || median > mRigth) return;
if (avg > 100) return;
// console.table({left,right,mLeft,mRigth,median});
// ctx.fillRect(i+n-radius, 0, 1, 360);
// console.log(i+n-radius);
return i + n - radius;
}
}
// not found
return -1;
}
runWithCanvas() {
const {createCanvas, Image} = require('canvas');
const canvas = createCanvas();
const ctx = canvas.getContext('2d');
const imgBg = new Image();
const imgPatch = new Image();
const prefix = 'data:image/png;base64,';
imgBg.src = prefix + this.rawBg;
imgPatch.src = prefix + this.rawPatch;
const {naturalWidth: w, naturalHeight: h} = imgBg;
canvas.width = w;
canvas.height = h;
ctx.clearRect(0, 0, w, h);
ctx.drawImage(imgBg, 0, 0, w, h);
const width = w;
const {naturalWidth, naturalHeight} = imgPatch;
const posY = this.y + PUZZLE_PAD + ((naturalHeight - PUZZLE_PAD) / 2) - (PUZZLE_GAP / 2);
// const cData = ctx.getImageData(0, a.y + 10 + 20 - 4, 360, 8).data;
const cData = ctx.getImageData(0, posY, width, PUZZLE_GAP).data;
const lumas = [];
for (let x = 0; x < width; x++) {
var sum = 0;
// y xais
for (let y = 0; y < PUZZLE_GAP; y++) {
var idx = x * 4 + y * (width * 4);
var r = cData[idx];
var g = cData[idx + 1];
var b = cData[idx + 2];
var luma = 0.2126 * r + 0.7152 * g + 0.0722 * b;
sum += luma;
}
lumas.push(sum / PUZZLE_GAP);
}
const n = 2; // minium macroscopic image width (px)
const margin = naturalWidth - PUZZLE_PAD;
const diff = 20; // macroscopic brightness difference
const radius = PUZZLE_PAD;
for (let i = 0, len = lumas.length - 2 * 4; i < len; i++) {
const left = (lumas[i] + lumas[i + 1]) / n;
const right = (lumas[i + 2] + lumas[i + 3]) / n;
const mi = margin + i;
const mLeft = (lumas[mi] + lumas[mi + 1]) / n;
const mRigth = (lumas[mi + 2] + lumas[mi + 3]) / n;
if (left - right > diff && mLeft - mRigth < -diff) {
const pieces = lumas.slice(i + 2, margin + i + 2);
const median = pieces.sort((x1, x2) => x1 - x2)[20];
const avg = Math.avg(pieces);
// noise reducation
if (median > left || median > mRigth) return;
if (avg > 100) return;
// console.table({left,right,mLeft,mRigth,median});
// ctx.fillRect(i+n-radius, 0, 1, 360);
// console.log(i+n-radius);
return i + n - radius;
}
}
// not found
return -1;
}
}
const DATA = {
"appId": "17839d5db83",
"product": "embed",
"lang": "zh_CN",
};
const SERVER = 'iv.jd.com';
class JDJRValidator {
constructor() {
this.data = {};
this.x = 0;
this.t = Date.now();
this.count = 0;
}
async run(scene = 'cww', eid='') {
const tryRecognize = async () => {
const x = await this.recognize(scene, eid);
if (x > 0) {
return x;
}
// retry
return await tryRecognize();
};
const puzzleX = await tryRecognize();
// console.log(puzzleX);
const pos = new MousePosFaker(puzzleX).run();
const d = getCoordinate(pos);
// console.log(pos[pos.length-1][2] -Date.now());
// await sleep(4500);
await sleep(pos[pos.length - 1][2] - Date.now());
this.count++;
const result = await JDJRValidator.jsonp('/slide/s.html', {d, ...this.data}, scene);
if (result.message === 'success') {
// console.log(result);
console.log('JDJR验证用时: %fs', (Date.now() - this.t) / 1000);
return result;
} else {
console.log(`验证失败: ${this.count}/${validatorCount}`);
// console.log(JSON.stringify(result));
if(this.count >= validatorCount){
console.log("JDJR验证次数已达上限，退出验证");
return result;
}else{
await sleep(300);
return await this.run(scene, eid);
}
}
}
async recognize(scene, eid) {
const data = await JDJRValidator.jsonp('/slide/g.html', {e: eid}, scene);
const {bg, patch, y} = data;
// const uri = 'data:image/png;base64,';
// const re = new PuzzleRecognizer(uri+bg, uri+patch, y);
const re = new PuzzleRecognizer(bg, patch, y);
// console.log(JSON.stringify(re))
const puzzleX = await re.run();
if (puzzleX > 0) {
this.data = {
c: data.challenge,
w: re.w,
e: eid,
s: '',
o: '',
};
this.x = puzzleX;
}
return puzzleX;
}
async report(n) {
console.time('PuzzleRecognizer');
let count = 0;
for (let i = 0; i < n; i++) {
const x = await this.recognize();
if (x > 0) count++;
if (i % 50 === 0) {
// console.log('%f\%', (i / n) * 100);
}
}
console.log('验证成功: %f\%', (count / n) * 100);
console.clear()
console.timeEnd('PuzzleRecognizer');
}
static jsonp(api, data = {}, scene) {
return new Promise((resolve, reject) => {
const fnId = `jsonp_${String(Math.random()).replace('.', '')}`;
const extraData = {callback: fnId};
const query = new URLSearchParams({...DATA,...{"scene": scene}, ...extraData, ...data}).toString();
const url = `https://${SERVER}${api}?${query}`;
const headers = {
'Accept': '*/*',
'Accept-Encoding': 'gzip,deflate,br',
'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
'Connection': 'keep-alive',
'Host': "iv.jd.com",
'Proxy-Connection': 'keep-alive',
'Referer': 'https://h5.m.jd.com/',
'User-Agent': UA,
};
const req = https.get(url, {headers}, (response) => {
let res = response;
if (res.headers['content-encoding'] === 'gzip') {
const unzipStream = new stream.PassThrough();
stream.pipeline(
response,
zlib.createGunzip(),
unzipStream,
reject,
);
res = unzipStream;
}
res.setEncoding('utf8');
let rawData = '';
res.on('data', (chunk) => rawData += chunk);
res.on('end', () => {
try {
const ctx = {
[fnId]: (data) => ctx.data = data,
data: {},
};
vm.createContext(ctx);
vm.runInContext(rawData, ctx);
// console.log(ctx.data);
res.resume();
resolve(ctx.data);
} catch (e) {
reject(e);
}
});
});
req.on('error', reject);
req.end();
});
}
}
function getCoordinate(c) {
function string10to64(d) {
var c = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-~".split("")
, b = c.length
, e = +d
, a = [];
do {
mod = e % b;
e = (e - mod) / b;
a.unshift(c[mod])
} while (e);
return a.join("")
}
function prefixInteger(a, b) {
return (Array(b).join(0) + a).slice(-b)
}
function pretreatment(d, c, b) {
var e = string10to64(Math.abs(d));
var a = "";
if (!b) {
a += (d > 0 ? "1" : "0")
}
a += prefixInteger(e, c);
return a
}
var b = new Array();
for (var e = 0; e < c.length; e++) {
if (e == 0) {
b.push(pretreatment(c[e][0] < 262143 ? c[e][0] : 262143, 3, true));
b.push(pretreatment(c[e][1] < 16777215 ? c[e][1] : 16777215, 4, true));
b.push(pretreatment(c[e][2] < 4398046511103 ? c[e][2] : 4398046511103, 7, true))
} else {
var a = c[e][0] - c[e - 1][0];
var f = c[e][1] - c[e - 1][1];
var d = c[e][2] - c[e - 1][2];
b.push(pretreatment(a < 4095 ? a : 4095, 2, false));
b.push(pretreatment(f < 4095 ? f : 4095, 2, false));
b.push(pretreatment(d < 16777215 ? d : 16777215, 4, true))
}
}
return b.join("")
}
const HZ = 20;
class MousePosFaker {
constructor(puzzleX) {
this.x = parseInt(Math.random() * 20 + 20, 10);
this.y = parseInt(Math.random() * 80 + 80, 10);
this.t = Date.now();
this.pos = [[this.x, this.y, this.t]];
this.minDuration = parseInt(1000 / HZ, 10);
// this.puzzleX = puzzleX;
this.puzzleX = puzzleX + parseInt(Math.random() * 2 - 1, 10);
this.STEP = parseInt(Math.random() * 6 + 5, 10);
this.DURATION = parseInt(Math.random() * 7 + 14, 10) * 100;
// [9,1600] [10,1400]
this.STEP = 9;
// this.DURATION = 2000;
// console.log(this.STEP, this.DURATION);
}
run() {
const perX = this.puzzleX / this.STEP;
const perDuration = this.DURATION / this.STEP;
const firstPos = [this.x - parseInt(Math.random() * 6, 10), this.y + parseInt(Math.random() * 11, 10), this.t];
this.pos.unshift(firstPos);
this.stepPos(perX, perDuration);
this.fixPos();
const reactTime = parseInt(60 + Math.random() * 100, 10);
const lastIdx = this.pos.length - 1;
const lastPos = [this.pos[lastIdx][0], this.pos[lastIdx][1], this.pos[lastIdx][2] + reactTime];
this.pos.push(lastPos);
return this.pos;
}
stepPos(x, duration) {
let n = 0;
const sqrt2 = Math.sqrt(2);
for (let i = 1; i <= this.STEP; i++) {
n += 1 / i;
}
for (let i = 0; i < this.STEP; i++) {
x = this.puzzleX / (n * (i + 1));
const currX = parseInt((Math.random() * 30 - 15) + x, 10);
const currY = parseInt(Math.random() * 7 - 3, 10);
const currDuration = parseInt((Math.random() * 0.4 + 0.8) * duration, 10);
this.moveToAndCollect({
x: currX,
y: currY,
duration: currDuration,
});
}
}
fixPos() {
const actualX = this.pos[this.pos.length - 1][0] - this.pos[1][0];
const deviation = this.puzzleX - actualX;
if (Math.abs(deviation) > 4) {
this.moveToAndCollect({
x: deviation,
y: parseInt(Math.random() * 8 - 3, 10),
duration: 250,
});
}
}
moveToAndCollect({x, y, duration}) {
let movedX = 0;
let movedY = 0;
let movedT = 0;
const times = duration / this.minDuration;
let perX = x / times;
let perY = y / times;
let padDuration = 0;
if (Math.abs(perX) < 1) {
padDuration = duration / Math.abs(x) - this.minDuration;
perX = 1;
perY = y / Math.abs(x);
}
while (Math.abs(movedX) < Math.abs(x)) {
const rDuration = parseInt(padDuration + Math.random() * 16 - 4, 10);
movedX += perX + Math.random() * 2 - 1;
movedY += perY;
movedT += this.minDuration + rDuration;
const currX = parseInt(this.x + movedX, 10);
const currY = parseInt(this.y + movedY, 10);
const currT = this.t + movedT;
this.pos.push([currX, currY, currT]);
}
this.x += x;
this.y += y;
this.t += Math.max(duration, movedT);
}
}
function injectToRequest(fn,scene = 'cww', ua = '') {
if(ua) UA = ua
return (opts, cb) => {
fn(opts, async (err, resp, data) => {
if (err) {
console.error(JSON.stringify(err));
return;
}
if (data.search('验证') > -1) {
console.log('JDJR验证中......');
let arr = opts.url.split("&")
let eid = ''
for(let i of arr){
if(i.indexOf("eid=")>-1){
eid = i.split("=") && i.split("=")[1] || ''
}
}
const res = await new JDJRValidator().run(scene, eid);
opts.url += `&validate=${res.validate}`;
fn(opts, cb);
} else {
cb(err, resp, data);
}
});
};
}
exports.injectToRequest = injectToRequest;
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