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Create script.js
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Vahid Farid committed Dec 11, 2023
1 parent 8a7397a commit 61a4c88
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346 changes: 346 additions & 0 deletions script.js
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var cfIPv4 = []
var cfIPv4ToScan = []
const noOfEachRange24 = 30
const client = new XMLHttpRequest();
client.open('GET', 'https://raw.githubusercontent.com/vfarid/cf-ip-scanner/main/ipv4.txt');
client.onreadystatechange = function() {
cfIPv4 = client.responseText.split("\n").map((cidr) => cidr.trim()).filter((cidr) => isCIDR(cidr));
document.getElementById('btn-start').disabled = false;
const tbody = document.getElementById('ip-ranges-body');
cfIPv4.forEach((cidr) => {
const row = tbody.insertRow();
const cell = row.insertCell();
cell.appendChild(document.createTextNode(cidr));
})
}
client.send();

let maxIP;
let testNo;
let validIPs;
let maxLatency;
let numberOfWorkingIPs;
let ipRegex;
let immediateStop = false;
let progressBar = document.getElementById('progress-bar');
let progress = 0;
let language = localStorage.getItem('lang') || 'fa'

document.getElementById('max-ip').value = localStorage.getItem('max-ip') || 20;
document.getElementById('max-latency').value = localStorage.getItem('max-latency') || 400;
document.getElementById('ip-regex').value = localStorage.getItem('ip-regex');
document.getElementById('ip-include').value = localStorage.getItem('ip-include');
document.getElementById('ip-exclude').value = localStorage.getItem('ip-exclude');
setLang(language)

function setLang(lang) {
if (lang == 'fa') {
document.getElementById('body').style.direction = 'rtl';
} else {
document.getElementById('body').style.direction = 'ltr';
}
let elements = document.getElementsByClassName('btn-lang');
[].forEach.call(elements, (el) => {
el.classList.remove('btn-primary')
el.classList.add('btn-outline-primary')
})
document.getElementById('btn-' + lang).classList.remove('btn-outline-primary')
document.getElementById('btn-' + lang).classList.add('btn-primary')
elements = document.getElementsByClassName('lang-field');
[].forEach.call(elements, (el) => {
el.style.display = 'none';
})
elements = document.getElementsByClassName('lang-' + lang);
[].forEach.call(elements, (el) => {
el.style.display = 'inline';
})
localStorage.setItem('lang', lang);
language = lang;
}

document.getElementById('btn-en').onclick = () => {
setLang('en')
}
document.getElementById('btn-fa').onclick = () => {
setLang('fa')
}

function cancelScan() {
immediateStop = true;
document.getElementById('btn-start').disabled = false;
document.getElementById('max-ip').disabled = false;
document.getElementById('max-latency').disabled = false;
document.getElementById('ip-regex').disabled = false;
document.getElementById('ip-include').disabled = false;
document.getElementById('ip-exclude').disabled = false;
document.getElementById('btn-cancel').disabled = true;
}

let ips = [];

function startScan() {
maxIP = ~~document.getElementById('max-ip').value;
maxLatency = ~~document.getElementById('max-latency').value;
ipRegex = document.getElementById('ip-regex').value;
ipInclude = document.getElementById('ip-include').value;
ipExclude = document.getElementById('ip-exclude').value;

localStorage.setItem('max-ip', maxIP);
localStorage.setItem('max-latency', maxLatency);
localStorage.setItem('ip-regex', ipRegex);
localStorage.setItem('ip-include', ipInclude);
localStorage.setItem('ip-exclude', ipExclude);

testNo = 0;
numberOfWorkingIPs = 0;
validIPs = [];
document.getElementById('result').innerHTML = '';
document.getElementById('btn-start').disabled = true;
document.getElementById('max-ip').disabled = true;
document.getElementById('max-latency').disabled = true;
document.getElementById('ip-regex').disabled = true;
document.getElementById('ip-include').disabled = true;
document.getElementById('ip-exclude').disabled = true;
document.getElementById('test-no').innerText = '';
document.getElementById('btn-cancel').disabled = false;

setTimeout(() => {
let ips = processIPs()
ips = randomizeElements(ips)
testIPs(ips);
}, 50)
}

function processIPs() {
let ips = [];
let regex = null;
let excludeRegex = null;
if (ipRegex) {
regex = new RegExp(ipRegex);
}
if (ipInclude) {
cfIPv4ToScan = makeCIDR(ipInclude);
} else {
cfIPv4ToScan = [...cfIPv4];
}
if (ipExclude) {
excludeRegex = new RegExp(
ipExclude.split(',').map(c => {return '^' + c.replaceAll('.', '\\.').replaceAll('/', '\\/')}).join('|')
);
}

for (const cidr of cfIPv4ToScan) {
if (regex && !regex.test(cidr)) {
continue;
}
if (excludeRegex && excludeRegex.test(cidr)) {
continue;
}
ips = ips.concat(cidrToRandomIPArray(cidr));
}
return ips
}



async function testIPs(ipList) {
for (const ip of ipList) {
if (immediateStop) {
break;
}
testNo++;
var testResult = 0;
const url = `https://${ip}/__down`;
const startTime = performance.now();
const controller = new AbortController();
const multiply = maxLatency <= 500 ? 1.5 : (maxLatency <= 1000 ? 1.2 : 1);
var timeout = 1.5 * multiply * maxLatency;
var chNo = 0;
for (const ch of ['', '|', '/', '-', '\\']) {
const timeoutId = setTimeout(() => {
controller.abort();
}, timeout);
if (ch) {
timeout = 1 * multiply * maxLatency;
document.getElementById('test-no').innerText = `#${testNo}:`;
document.getElementById('ip-no').innerText = ip;
document.getElementById('ip-no').style = `color: green`;
document.getElementById('ip-try').innerText = ch;
document.getElementById('ip-latency').innerText = Math.floor((performance.now() - startTime) / chNo) + 'ms';
} else {
timeout = 1.2 * multiply * maxLatency;
document.getElementById('test-no').innerText = `#${testNo}:`;
document.getElementById('ip-no').innerText = ip;
document.getElementById('ip-no').style = `color: red`;
document.getElementById('ip-try').innerText = '';
document.getElementById('ip-latency').innerText = '';
}
try {
const response = await fetch(url, {
signal: controller.signal,
});

testResult++;
} catch (error) {
if (error.name === "AbortError") {
//
} else {
testResult++;
}
}
clearTimeout(timeoutId);
chNo++;
}

const latency = Math.floor((performance.now() - startTime) / 5);

if (testResult === 5 && latency <= maxLatency) {
numberOfWorkingIPs++;
validIPs.push({ip: ip, latency: latency});
const sortedArr = validIPs.sort((a, b) => a.latency - b.latency);
const tableRows = sortedArr.map(obj => `
<tr>
<td></td>
<td>${obj.ip}</td>
<td>${obj.latency}ms</td>
<td>
<button class="btn btn-outline-secondary btn-sm" onclick="copyToClipboard('${obj.ip}')"><img height="16px" src="assets/icon-copy.png" /></button>
</td>
</tr>`).join('\n');
document.getElementById('result').innerHTML = tableRows;
}

if (numberOfWorkingIPs >= maxIP) {
break;
}
}

document.getElementById('ip-no').innerText = '';
document.getElementById('ip-try').innerText = '';
document.getElementById('ip-latency').innerText = '';
document.getElementById('btn-start').disabled = false;
document.getElementById('max-ip').disabled = false;
document.getElementById('max-latency').disabled = false;
document.getElementById('ip-regex').disabled = false;
document.getElementById('ip-include').disabled = false;
document.getElementById('ip-exclude').disabled = false;
document.getElementById('btn-cancel').disabled = true;

if (immediateStop) {
immediateStop = false;
document.getElementById('test-no').innerHTML = `
<span class="lang-field lang-fa text-danger fw-bold">لغو شد!</span>
<span class="lang-field lang-en text-danger fw-bold">Canceled!</span>
`;
} else {
document.getElementById('test-no').innerText = `
<span class="lang-field lang-fa text-success fw-bold">تمام شد.</span>
<span class="lang-field lang-en text-success fw-bold">Done.</span>
`;
}
setLang(language)
}

function copyToClipboard(ip) {
navigator.clipboard.writeText(ip).then(() => {
alert('آی‌پی‌ در کلیپ‌بورد کپی شد.');
}).catch(() => {
alert('مشکلی پیش آمده است!');
});
}

function copyAllToClipboard(ip) {
const txt = validIPs.map(el => el.ip).join('\n');
copyToClipboard(txt)
}

function isCIDR(cidr) {
return cidr.match(/^([0-9]{1,3}\.){3}[0-9]{1,3}\/(16|17|18|19|20|21|22|23|24)$/g);
}

function makeCIDR(includeStr) {
let includeList = includeStr.split(',').map((cidr) => cidr.trim());
cidrList = includeList.flatMap((cidr) => {
if (isCIDR(cidr)) {
return [cidr];
} else if (cidr) {
const regex = new RegExp(
'^' + cidr.replaceAll('.', '\\.').replaceAll('/', '\\/')
);
return cfIPv4.filter((cidr) => cidr.match(regex));
} else {
return [];
}
})
return cidrList;
}

function generateRandomNumbers(count) {
const numbers = [];
while (numbers.length < count) {
const randomNumber = Math.floor(Math.random() * 254) + 1;
if (!numbers.includes(randomNumber)) {
numbers.push(randomNumber);
}
}
return numbers;
}

function splitCIDRTo24Ranges(cidr) {
const [baseIP, baseMask] = cidr.split('/');
const baseStart = baseIP.split('.').reduce((acc, octet) => (acc << 8) | parseInt(octet, 10), 0) >>> 0;
const baseEnd = (baseStart | (0xffffffff >>> parseInt(baseMask, 10))) >>> 0;

const ranges = [];
let currentStart = baseStart;

while (currentStart <= baseEnd) {
ranges.push(currentStart);
currentStart += 0x100;
}

return ranges
}


function cidrToRandomIPArray(cidr, count) {
const ranges = splitCIDRTo24Ranges(cidr);
const ips = [];
for (const start of ranges) {
const prefix = `${(start >>> 24) & 0xff}.${(start >>> 16) & 0xff}.${(start >>> 8) & 0xff}`;
for (const no of generateRandomNumbers(noOfEachRange24)) {
ips.push(prefix + '.' + no);
}
}
return ips;
}

function randomizeElements(arr) {
return [...arr].sort(() => {return 0.5 - Math.random()});
}

function downloadAsCSV() {
const csvString = validIPs.map(el => el.ip).join('\n');
const blob = new Blob([csvString], { type: 'text/csv;charset=utf-8;' });
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.setAttribute('href', url);
link.setAttribute('download', 'ip-list.csv');
link.style.display = 'none';
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
}

function downloadAsJSON() {
const jsonString = JSON.stringify(validIPs.map(el => el.ip), null, 2);
const blob = new Blob([jsonString], { type: 'application/json;charset=utf-8;' });
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.setAttribute('href', url);
link.setAttribute('download', 'ip-list.json');
link.style.display = 'none';
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
}

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