Pengiriman Formulir Otomatis dengan Penanganan CAPTCHA

Otomatiskan pengiriman formulir yang menyertakan tantangan CAPTCHA menggunakan Selenium dan CaptchaAI.

Tantangannya

Formulir web dilindungi oleh otomatisasi blok CAPTCHA. Baik Anda menguji formulir kontak, mengirimkan aplikasi, atau menjalankan alur kerja QA, Anda perlu menyelesaikan CAPTCHA sebelum formulir menerima kiriman Anda.

Arsitektur

┌────────────┐     ┌──────────────┐     ┌────────────┐     ┌──────────────┐
│ Load Form  │────▶│ Fill Fields  │────▶│ Detect &   │────▶│ Submit Form  │
│ (Selenium) │     │              │     │ Solve      │     │              │
│            │     │              │     │ CAPTCHA    │     │              │
└────────────┘     └──────────────┘     └────────────┘     └──────────────┘

Komponen Inti

Pemecah CAPTCHA

import time
import requests


class FormCaptchaSolver:
    BASE = "https://ocr.captchaai.com"

    def __init__(self, api_key):
        self.api_key = api_key

    def solve(self, params, initial_wait=10):
        params["key"] = self.api_key
        params["json"] = 1
        resp = requests.post(f"{self.BASE}/in.php", data=params).json()
        if resp["status"] != 1:
            raise Exception(f"Submit error: {resp['request']}")

        task_id = resp["request"]
        time.sleep(initial_wait)

        for _ in range(60):
            result = requests.get(
                f"{self.BASE}/res.php",
                params={"key": self.api_key, "action": "get", "id": task_id, "json": 1},
            ).json()
            if result["request"] == "CAPCHA_NOT_READY":
                time.sleep(5)
                continue
            if result["status"] == 1:
                return result["request"]
            raise Exception(f"Solve error: {result['request']}")
        raise TimeoutError("CAPTCHA solve timed out")

Detektor CAPTCHA

import re
from selenium.webdriver.common.by import By


class CaptchaDetector:
    def __init__(self, driver):
        self.driver = driver

    def detect(self):
        """Detect CAPTCHA type on current page."""
        html = self.driver.page_source

        # Turnstile
        turnstile = self.driver.find_elements(By.CSS_SELECTOR, ".cf-turnstile, [data-sitekey]")
        for el in turnstile:
            if "cf-turnstile" in (el.get_attribute("class") or ""):
                return "turnstile", el.get_attribute("data-sitekey")

        # reCAPTCHA
        recaptcha = self.driver.find_elements(By.CSS_SELECTOR, "[data-sitekey]")
        if recaptcha:
            sitekey = recaptcha[0].get_attribute("data-sitekey")
            if "recaptcha" in html.lower():
                return "recaptcha_v2", sitekey

        # Image CAPTCHA
        img = self.driver.find_elements(By.CSS_SELECTOR, "img[src*='captcha'], img.captcha")
        if img:
            return "image", img[0].get_attribute("src")

        return "none", None

Pengotomasi Formulir

import base64
import requests as req
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC


class FormAutomator:
    def __init__(self, api_key):
        self.solver = FormCaptchaSolver(api_key)
        self.driver = webdriver.Chrome()
        self.detector = CaptchaDetector(self.driver)

    def fill_field(self, selector, value):
        field = WebDriverWait(self.driver, 10).until(
            EC.presence_of_element_located((By.CSS_SELECTOR, selector))
        )
        field.clear()
        field.send_keys(value)

    def select_option(self, selector, value):
        from selenium.webdriver.support.ui import Select
        select = Select(self.driver.find_element(By.CSS_SELECTOR, selector))
        select.select_by_value(value)

    def solve_captcha(self):
        captcha_type, data = self.detector.detect()
        page_url = self.driver.current_url

        if captcha_type == "recaptcha_v2":
            token = self.solver.solve({
                "method": "userrecaptcha",
                "googlekey": data,
                "pageurl": page_url,
            })
            self.driver.execute_script(
                f'document.querySelector("[name=g-recaptcha-response]").value = "{token}";'
            )
            return True

        if captcha_type == "turnstile":
            token = self.solver.solve({
                "method": "turnstile",
                "sitekey": data,
                "pageurl": page_url,
            })
            self.driver.execute_script(
                f'document.querySelector("[name=cf-turnstile-response]").value = "{token}";'
            )
            return True

        if captcha_type == "image":
            img_data = req.get(data).content
            img_b64 = base64.b64encode(img_data).decode()
            text = self.solver.solve({"method": "base64", "body": img_b64})
            captcha_input = self.driver.find_element(
                By.CSS_SELECTOR, "input[name*='captcha']"
            )
            captcha_input.clear()
            captcha_input.send_keys(text)
            return True

        return False  # No CAPTCHA detected

    def submit_form(self, url, fields, submit_selector="button[type='submit']"):
        """
        fields: list of (selector, value) tuples
        """
        self.driver.get(url)

        for selector, value in fields:
            self.fill_field(selector, value)

        self.solve_captcha()

        submit = self.driver.find_element(By.CSS_SELECTOR, submit_selector)
        submit.click()

        return self.driver.current_url

    def close(self):
        self.driver.quit()

Contoh Lengkap: Formulir Kontak

automator = FormAutomator("YOUR_API_KEY")

try:
    result_url = automator.submit_form(
        url="https://example.com/contact",
        fields=[
            ("#name", "John Doe"),
            ("#email", "john@example.com"),
            ("#subject", "Sales inquiry"),
            ("#message", "I'd like to learn more about your services."),
        ],
        submit_selector="#submit-btn",
    )
    print(f"Form submitted. Redirected to: {result_url}")
finally:
    automator.close()

Menangani Berbagai Jenis Formulir

Formulir Masuk

result = automator.submit_form(
    url="https://staging.example.com/qa-login",
    fields=[
        ("#username", "testuser"),
        ("#password", "testpass123"),
    ],
    submit_selector="#login-btn",
)

Formulir Pendaftaran

result = automator.submit_form(
    url="https://example.com/register",
    fields=[
        ("#first-name", "Jane"),
        ("#last-name", "Smith"),
        ("#email", "jane@example.com"),
        ("#password", "SecurePass!123"),
        ("#confirm-password", "SecurePass!123"),
    ],
    submit_selector="#register-btn",
)

Formulir Pencarian dengan CAPTCHA

result = automator.submit_form(
    url="https://example.com/search",
    fields=[
        ("#query", "python developer"),
        ("#location", "San Francisco"),
    ],
    submit_selector="#search-btn",
)

Pemecahan Masalah

Pertanyaan Umum

Bisakah saya mengirimkan formulir tanpa browser?

Untuk reCAPTCHA dan Turnstile, Anda dapat menyelesaikan CAPTCHA tanpa browser dan mengirimkannya melalui HTTP POST. Namun jika form menggunakan validasi JavaScript, diperlukan browser.

Bagaimana cara menangani formulir dengan banyak CAPTCHA?

Beberapa formulir memperlihatkan CAPTCHA hanya setelah validasi gagal. Jalankan solve_captcha() lagi setelah setiap upaya pengiriman.

Bagaimana dengan formulir AJAX?

Untuk pengiriman AJAX, intersepsi permintaan XHR dan sertakan token CAPTCHA dalam payload permintaan alih-alih mengisi kolom tersembunyi.

Panduan Terkait

• Cara Mengatasi reCAPTCHA v2 Menggunakan API
• Cara Mengatasi Cloudflare Turnstile Menggunakan API

Otomatiskan formulir apa pun – selesaikan CAPTCHA dengan CaptchaAI.