ChatGPT Rate Limit - Backend

A tool to know your ChatGPT Rate Limit.

Bu betiği kurabilmeniz için Tampermonkey, Greasemonkey ya da Violentmonkey gibi bir kullanıcı betiği eklentisini kurmanız gerekmektedir.

You will need to install an extension such as Tampermonkey to install this script.

Bu betiği kurabilmeniz için Tampermonkey ya da Violentmonkey gibi bir kullanıcı betiği eklentisini kurmanız gerekmektedir.

Bu betiği kurabilmeniz için Tampermonkey ya da Userscripts gibi bir kullanıcı betiği eklentisini kurmanız gerekmektedir.

You will need to install an extension such as Tampermonkey to install this script.

Bu komut dosyasını yüklemek için bir kullanıcı komut dosyası yöneticisi uzantısı yüklemeniz gerekecek.

(Zaten bir kullanıcı komut dosyası yöneticim var, kurmama izin verin!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Zateb bir user-style yöneticim var, yükleyeyim!)

// ==UserScript==
// @name         ChatGPT Rate Limit - Backend
// @namespace    http://terase.cn
// @license      MIT
// @version      4.0
// @description  A tool to know your ChatGPT Rate Limit.
// @author       Terrasse
// @match        https://chatgpt.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=chatgpt.com
// @grant        GM.xmlHttpRequest
// @grant        unsafeWindow
// @connect      oai-rl.terase.cn
// @connect      ip.sb
// @sandbox      DOM
// ==/UserScript==

(function() {
    'use strict';

var api_url = localStorage.getItem('oairl_api_url');
var api_key = localStorage.getItem('oairl_api_key');

if (!api_url || !api_url.startsWith('https')) {
    api_url = prompt('Please enter [ChatGPT Rate Limit] API URL');
    localStorage.setItem('oairl_api_url', api_url);
}

if (!api_key || !/^[A-Za-z0-9]{32}$/.test(api_key)) {
    api_key = prompt('Please enter [ChatGPT Rate Limit] API Key (32 characters)');
    localStorage.setItem('oairl_api_key', api_key);
}

function requestAPI(model, method, onload) {
    var api = `${api_url}?model=${model}`;
    GM.xmlHttpRequest({
        method: method,
        url: api,
        headers: {
            "Authorization": "Bearer " + api_key
        },
        onload: onload
    });
}

function updateStatus(model, opposite) {
    requestAPI(model, "GET", function(response) {
        if (response.status === 200) {
            // console.log("GET success: " + response.responseText);
            var remain = JSON.parse(response.responseText).remain;
            opposite.postMessage({ model: model, type: "status", remain: remain }, window.location.origin);
        } else {
            console.log(`GET Error: ${response.status} ${response.responseText}`, response);
        }
    });
}

function receiveMessage(event) { // Accept: type="put" or "get"
    if (event.origin !== window.location.origin) return;
    if (event.data.type !== "put" && event.data.type !== "get") return;
    // console.log('ISOLATED_WORLD 收到消息:', event.data);

    var msg = event.data;
    if (msg.type == "put") {
        requestAPI(msg.model, "PUT", function(response) {
            if (response.status === 200) {
                // console.log("PUT success: " + response.responseText);
                updateStatus(msg.model, event.source);
            } else {
                console.log(`PUT Error: ${response.status} ${response.responseText}`, response);
            }
        });
    } else if (msg.type == "get") {
        updateStatus(msg.model, event.source);
    } else {
        console.log(`Unknown message type from fontend: ${msg.type}, msg: ${msg}, event: ${event}`, event);
    }
}

window.addEventListener('message', receiveMessage, false);

var resetKeyCounter = 0;
var lastClickTime = 0;
function resetKey() {
    var now = Date.now();
    if (now - lastClickTime > 1000) {
        resetKeyCounter = 0;
    }
    lastClickTime = now;

    if (++resetKeyCounter % 5) return; // click 5 times in quick succession
    if (!confirm('Are you sure to reset the API URL and Key?')) return;

    localStorage.removeItem('oairl_api_url');
    localStorage.removeItem('oairl_api_key');
    location.reload();
}

window.addEventListener('click', function(event) {
  if (event.target && event.target.id == 'crl_bar') {
    resetKey();
  }
});

// ================ Proxy Protect ================

function parseIPv4(ip) {
  const parts = ip.split(".");
  if (parts.length !== 4) return null;

  let n = 0;
  for (const p of parts) {
    if (p === "" || !/^\d+$/.test(p)) return null;
    const v = Number(p);
    if (v < 0 || v > 255) return null;
    n = (n << 8) | v;
  }
  return n >>> 0;
}

function isIPv4InCIDR(ip, cidr) {
  const [baseStr, prefixStr] = cidr.split("/");
  if (!baseStr || prefixStr == null) return false;

  const base = parseIPv4(baseStr);
  const addr = parseIPv4(ip);
  const prefix = Number(prefixStr);

  if (base == null || addr == null) return false;
  if (!Number.isInteger(prefix) || prefix < 0 || prefix > 32) return false;

  const mask = prefix === 0 ? 0 : ((0xffffffff << (32 - prefix)) >>> 0);
  return ((addr & mask) >>> 0) === ((base & mask) >>> 0);
}

const allowedCIDR = [
    '47.148.0.0/16',
];
var current_ip = '';
var warning_displayed = false;

function checkAllowed(ip) {
    for (const cidr of allowedCIDR) {
        if (isIPv4InCIDR(ip, cidr)) {
            return true;
        }
    }
    return false;
}

function checkIP() {
    GM.xmlHttpRequest({
        url: 'https://api.ip.sb/ip',
        onload: function(response) {
            current_ip = response.responseText.trim();
            var is_allowed = checkAllowed(current_ip);
            if (!is_allowed) {
                console.log(`IP ${current_ip} is not allowed`);
                if (!warning_displayed) {
                    warning_displayed = true;
                    alert(`Your IP ${current_ip} is not recommended.`);
                }
                return;
            }
            console.log(`IP ${current_ip} is allowed`);
        }
    });
}

checkIP();
setInterval(checkIP, 60000); // 1min

})();