gamejolt_download.py

#!/usr/bin/python3
import argparse
import re
import subprocess
from pathlib import Path

import requests

ID_RE = re.compile(r"/(\d+)(?:/|$)")
TOKEN_RE = re.compile(r"token=([^&]+)")


def fetch_json(session: requests.Session, url: str, data: str = "") -> dict:
    """Fetch JSON data from a URL with error handling."""
    response = session.post(url, data=data) if data else session.get(url)

    if not response.ok:
        if "cf-cookie-error" in response.text:
            print("Cloudflare cookie error. Please try again later.")
        else:
            print(f"Error fetching {url}: {response.status_code}")
        exit(1)

    try:
        return response.json()
    except requests.exceptions.JSONDecodeError:
        print(f"Error decoding JSON from {url}")
        exit(1)


def download_file(session: requests.Session, url: str, file_path: str):
    """Download a file using wget with session cookies."""
    cookies = {
        cookie.name: cookie.value
        for cookie in session.cookies
        if cookie.name in ("gjexpires", "gjsig")
    }
    cookies_str = "; ".join(
        f"{name}={value}" for name, value in cookies.items() if value
    )
    subprocess.call(
        ["wget", "--header", f"Cookie: {cookies_str}", "-O", file_path, url]
    )


def main():
    parser = argparse.ArgumentParser(description="Download game files from GameJolt")
    parser.add_argument("url", help="URL of the game on GameJolt")
    args = parser.parse_args()

    session = requests.Session()
    session.headers.update(
        {
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"
        }
    )

    match = ID_RE.search(args.url)
    if not match:
        print("Invalid URL. Please provide a valid GameJolt game URL.")
        exit(1)

    game_id = match.group(1)
    overview_url = (
        f"https://gamejolt.com/site-api/web/discover/games/overview/{game_id}?ignore"
    )
    response = fetch_json(session, overview_url)

    for build in response["payload"]["builds"]:
        if build["type"] == "downloadable":
            continue

        build_id = build["id"]
        download_url_response = fetch_json(
            session,
            f"https://gamejolt.com/site-api/web/discover/games/builds/get-download-url/{build_id}",
            data="{}",
        )

        token_match = TOKEN_RE.search(download_url_response["payload"]["url"])
        if not token_match:
            print("Token not found in URL.")
            exit(1)

        token = token_match.group(1)
        game_server_response = fetch_json(
            session, f"https://gamejolt.net/site-api/gameserver/{token}"
        )

        url = game_server_response["payload"]["url"].replace("https://", "http://")
        path = Path("/".join(url.split("/")[2:-1]))
        file_name = url.split("/")[-1]
        file_path = path / file_name

        path.mkdir(parents=True, exist_ok=True)
        download_file(session, url, str(file_path))


if __name__ == "__main__":
    main()

Why

Cloudflare error, fixed