initia/src/faucet/captcha.ts

import axios, { AxiosInstance } from 'axios'
import dotenv from 'dotenv'
import polly from 'polly-js'
import { solveChallenge, solveChallengeWorkers } from 'shawnlu96-altcha-lib'
import * as os from 'node:os'
dotenv.config()
const cpus = os.cpus()
console.log('current cores', cpus.length)
const googlekey = '6LdLhtYpAAAAAOe1xmceNR-i6MTtzq7N6AYztoVI'
const hCaptchaKey = '04d28d90-d5b9-4a90-94e5-a12c595bd4e2'
const captchaApiKey = process.env.CAPTCHA_API_KEY

export async function getRecaptcha(address: string) {
  return await polly()
    .waitAndRetry(2)
    .executeForPromise(async () => {
      const res = await axios.post('https://2captcha.com/in.php', {
        method: 'userrecaptcha',
        key: captchaApiKey,
        googlekey,
        pageUrl: `https://faucet.testnet.initia.xyz/?address=${address}`,
        json: 1,
        action: 'verify',
      })
      const request = res.data.request
      return await polly()
        .waitAndRetry([10000, 10000, 10000, 10000, 10000, 10000, 10000, 10000])
        .executeForPromise(async () => {
          const captchaRes = await axios.get(
            `https://2captcha.com/res.php?key=${captchaApiKey}&action=get&id=${request}&json=1`,
          )
          const token = captchaRes.data.request
          console.log(token)
          if (token === 'CAPCHA_NOT_READY') throw new Error('CAPCHA_NOT_READY')
          if (!token) throw new Error('no result')
          return token
        })
    })
}

export async function getAltchaPayload(client: AxiosInstance) {
  return await polly()
    .waitAndRetry(5)
    .executeForPromise(async info => {
      console.log('altcha retry:', info.count)
      const challengeResp = await client.get(
        'https://faucet-api.initiation-1.initia.xyz/create_challenge',
      )
      const challenge = challengeResp.data

      // console.log(challenge)
      const solution = await solveChallengeWorkers(
        './build/src/faucet/worker.js',
        cpus.length / 2,
        challenge.challenge,
        challenge.salt,
        challenge.max,
        challenge.start,
      )
      const payload = {
        algorithm: 'SHA-256',
        challenge: challenge.challenge,
        number: solution.number,
        salt: challenge.salt,
        signature: challenge.signature,
        took: solution.took,
      }
      console.log('challenge resolved')
      return btoa(JSON.stringify(payload))
    })
}

export async function solveHCaptcha(address: string) {
  return await polly()
    .waitAndRetry(2)
    .executeForPromise(async () => {
      const res = await axios.post('https://2captcha.com/in.php', {
        method: 'hcaptcha',
        sitekey: hCaptchaKey,
        key: captchaApiKey,
        pageUrl: `https://faucet.testnet.initia.xyz/?address=${address}`,
        json: 1,
      })
      const request = res.data.request
      return await polly()
        .waitAndRetry([10000, 10000, 10000, 10000, 10000, 10000, 10000, 10000])
        .executeForPromise(async () => {
          const captchaRes = await axios.get(
            `https://2captcha.com/res.php?key=${captchaApiKey}&action=get&id=${request}&json=1`,
          )
          const token = captchaRes.data.request
          // console.log(token)
          if (token === 'CAPCHA_NOT_READY') throw new Error('CAPCHA_NOT_READY')
          if (!token) throw new Error('no result')
          console.log('hCaptcha solved')
          return token
        })
    })
}