Sky

from flask import Flask, request, Response
import requests
from urllib.parse import urlparse

app = Flask(__sky__)

# Optional: Domains to block for safety
BLOCKED_DOMAINS = [
    "examplebad.com",
    "malicious-site.org"
]

# Sanitize and validate URLs
def is_safe_url(url):
    parsed = urlparse(url)
    if parsed.scheme != 'https':
        return False
    if any(bad in parsed.netloc for bad in BLOCKED_DOMAINS):
        return False
    return True

@app.route('/proxy')
def proxy():
    url = request.args.get('url')
    if not url or not is_safe_url(url):
        return "Blocked or Invalid URL", 400

    try:
        headers = {
            'User-Agent': 'Mozilla/5.0 (ProxySafeBot)',
            'Accept': '*/*',
        }

        # Make the request
        resp = requests.get(url, headers=headers, timeout=10)
        excluded_headers = ['content-encoding', 'content-length', 'transfer-encoding', 'connection']
        response_headers = [(name, value) for (name, value) in resp.raw.headers.items()
                            if name.lower() not in excluded_headers]

        return Response(resp.content, resp.status_code, response_headers)
    except Exception as e:
        return f"Proxy Error: {str(e)}", 500

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=443, ssl_context='adhoc')  # Run HTTPS server with self-signed cert
import os
port = int(os.environ.get("PORT", 8080))
app.run(host="0.0.0.0", port=port)