index.js

const undici = require('undici')

function rdn(min, max) {
  min = Math.ceil(min)
  max = Math.floor(max)
  return Math.floor(Math.random() * (max - min)) + min
}

async function solve(page) {
  try {
    await page.waitForFunction(() => {
      const iframe = document.querySelector('iframe[src*="api2/anchor"]')
      if (!iframe) return false

      return !!iframe.contentWindow.document.querySelector('#recaptcha-anchor')
    })

    let frames = await page.frames()
    const recaptchaFrame = frames.find(frame => frame.url().includes('api2/anchor'))

    const checkbox = await recaptchaFrame.$('#recaptcha-anchor')
    await checkbox.click({ delay: rdn(30, 150) })

    const challenge = await page.waitForFunction(() => {
      let iframe = document.querySelector('iframe[src*="api2/anchor"]')
      if(iframe == null || !!iframe.contentWindow.document.querySelector('#recaptcha-anchor[aria-checked="true"]')){
        return false
      }

      iframe = document.querySelector('iframe[src*="api2/bframe"]')
      const img = iframe.contentWindow.document.querySelector('.rc-image-tile-wrapper img')
      if (img && img.complete) {
        return true
      }

      return false
    }, { timeout: 5000 })

    if (!challenge) return

    frames = await page.frames()
    const imageFrame = frames.find(frame => frame.url().includes('api2/bframe'))
    const audioButton = await imageFrame.$('#recaptcha-audio-button')
    await audioButton.click({ delay: rdn(30, 150) })

    while (true) {
      try {
        await page.waitForFunction(() => {
          const iframe = document.querySelector('iframe[src*="api2/bframe"]')
          if (!iframe) return false

          return !!iframe.contentWindow.document.querySelector('.rc-audiochallenge-tdownload-link')
        }, { timeout: 5000 })
      } catch (e) {
        console.error(e)
        continue
      }

      const audioLink = await page.evaluate(() => {
        const iframe = document.querySelector('iframe[src*="api2/bframe"]')
        return iframe.contentWindow.document.querySelector('#audio-source').src
      })

      const audioBytes = await page.evaluate(audioLink => {
        return (async () => {
          const response = await window.fetch(audioLink)
          const buffer = await response.arrayBuffer()
          return Array.from(new Uint8Array(buffer))
        })()
      }, audioLink)

      const response = await undici.fetch('https://api.wit.ai/speech?v=20220622', {
        method: 'POST',
        body: new Uint8Array(audioBytes),
        headers: {
          Authorization: 'Bearer JVHWCNWJLWLGN6MFALYLHAPKUFHMNTAC',
          'Content-Type': 'audio/mpeg3'
        }
      }).then((res) => res.text())

      let audioTranscript = null

      try {
        audioTranscript = response.match('"text": "(.*)",')[1].trim()
      } catch (e) {
        const reloadButton = await imageFrame.$('#recaptcha-reload-button')
        await reloadButton.click({ delay: rdn(30, 150) })
        continue
      }

      const input = await imageFrame.$('#audio-response')
      await input.click({ delay: rdn(30, 150) })
      await input.type(audioTranscript, { delay: rdn(30, 75) })

      const verifyButton = await imageFrame.$('#recaptcha-verify-button')
      await verifyButton.click({ delay: rdn(30, 150) })

      try {
        await page.waitForFunction(() => {
          const iframe = document.querySelector('iframe[src*="api2/anchor"]')
          if(iframe == null || !!iframe.contentWindow.document.querySelector('#recaptcha-anchor[aria-checked="true"]')){
            return true
          }
        }, { timeout: 5000 })

        return page.evaluate(() => document.getElementById('g-recaptcha-response').value)
      } catch (e) {
        console.error(e)
        continue
      }
    }
  } catch (e) {
    console.error(e)
  }
}

module.exports = solve