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from flask import Flask, request
from flask_httpauth import HTTPBasicAuth
from flask_otp import OTP

app = Flask(__name__)
auth = HTTPBasicAuth()

users = {
    "admin": "adminPassword"
}

@auth.verify_password
def verify_password(username, password):
    if username in users and password == users[username]:
        return username

@auth.get_user_roles
def get_user_roles(username):
    if username == "admin":
        return "admin"

@app.route('/')
@auth.login_required
def home():
    return "Welcome to the admin portal!"

@app.route('/otp', methods=["POST"])
@auth.login_required
def generate_otp():
    if auth.current_user() == "admin":
        otp = OTP.generate()
        return otp
    else:
        return "Access denied."

if __name__ == '__main__':
    app.run()

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<?php
function validate_input($input) {
    $pattern = "/^[a-zA-Z0-9]+$/";
    if (preg_match($pattern, $input)) {
        return true;
    } else {
        return false;
    }
}

$input = $_POST['input'];

if (validate_input($input)) {
    // Ö´ÐÐÇå¾²µÄ²Ù×÷
} else {
    // ÊäÍÉ»¯ÎóÐÂÎÅ»ò¾Ü¾øÇëÇó
}
?>

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from flask import Flask, request
from flask_limiter import Limiter
from flask_limiter.util import get_remote_address

app = Flask(__name__)
limiter = Limiter(app, key_func=get_remote_address)

@app.route('/')
@limiter.limit("10 per minute")
def home():
    return "Welcome to the website!"

if __name__ == '__main__':
    app.run()

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