Flask bot detection and email validation

pip install requests flask

import functools
import logging
import os

import requests
from flask import jsonify, request

log = logging.getLogger(__name__)

CONURE = "https://uat.conureapi.com"
API_KEY = os.environ.get("CONURE_API_KEY", "")


def client_ip():
    forwarded = request.headers.get("X-Forwarded-For", "")
    if forwarded:
        return forwarded.split(",")[0].strip()
    return request.remote_addr or ""


def block_bots(view):
    @functools.wraps(view)
    def wrapper(*args, **kwargs):
        ip = client_ip()
        if not (ip and API_KEY):
            return view(*args, **kwargs)

        try:
            response = requests.post(
                CONURE + "/v1/bot-check",
                headers={"Authorization": "Bearer " + API_KEY},
                json={"ip": ip, "user_agent": request.headers.get("User-Agent", "")},
                timeout=3,
            )
            response.raise_for_status()
            verdict = response.json()
        except (requests.RequestException, ValueError) as error:
            log.warning("conure unreachable: %s", error)
            return view(*args, **kwargs)  # fail open

        if verdict.get("is_bot") is True:
            return jsonify(
                error="Automated traffic is not permitted.",
                reasons=verdict.get("reasons", []),
            ), 403

        return view(*args, **kwargs)

    return wrapper

from flask import Flask
from conure import block_bots

app = Flask(__name__)

@app.post("/signup")
@block_bots
def signup():
    ...

curl -X POST https://uat.conureapi.com/v1/bot-check \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip":"52.1.2.3","user_agent":"curl/8.4.0"}'

import requests

HEADERS = {"Authorization": "Bearer YOUR_API_KEY"}

response = requests.post(
    "https://uat.conureapi.com/v1/bot-check",
    headers=HEADERS,
    json={"ip": "52.1.2.3", "user_agent": "curl/8.4.0"},
    timeout=5,
)
response.raise_for_status()
print(response.json())

const response = await fetch("https://uat.conureapi.com/v1/bot-check", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({"ip":"52.1.2.3","user_agent":"curl/8.4.0"}),
  signal: AbortSignal.timeout(5000),
});

if (!response.ok) throw new Error("conure: " + response.status);
console.log(await response.json());

$curl = curl_init("https://uat.conureapi.com/v1/bot-check");
curl_setopt_array($curl, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT => 5,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => '{"ip":"52.1.2.3","user_agent":"curl/8.4.0"}',
    CURLOPT_HTTPHEADER => [
        "Authorization: Bearer YOUR_API_KEY",
        "Content-Type: application/json",
    ],
]);

$body = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_RESPONSE_CODE);
curl_close($curl);

$verdict = $status === 200 ? json_decode($body, true) : null;
var_dump($verdict);

require "net/http"
require "json"

uri = URI("https://uat.conureapi.com/v1/bot-check")
request = Net::HTTP::Post.new(uri)
request["Authorization"] = "Bearer YOUR_API_KEY"
request["Content-Type"] = "application/json"
request.body = { ip: "52.1.2.3", user_agent: "curl/8.4.0" }.to_json

response = Net::HTTP.start(uri.hostname, uri.port,
                           use_ssl: uri.scheme == "https",
                           open_timeout: 5, read_timeout: 5) do |http|
  http.request(request)
end

puts JSON.parse(response.body)