get-wish.py

import os
import json
import subprocess
import urllib
import urllib.request
import urllib.parse

API_HOST = "public-operation-hk4e-sg.hoyoverse.com"


def get_wish_urls():
    result = []
    cmd = "find ~/Library/Containers/com.miHoYo.GenshinImpact/Data/Library/Caches/WebKit -type f -exec strings {} \\; | grep e20190909gacha-v3 | grep -E '(https.+?game_biz=)' | uniq | more"
    output = subprocess.check_output(cmd, shell=True)
    for line in output.splitlines():
        result.append(line)
    return result


def check_url(url) -> str:
    uri = urllib.parse.urlparse(url)
    path = "gacha_info/api/getGachaLog"
    fragment = ""
    query: dict = urllib.parse.parse_qs(uri.query)
    query["lang"] = "en"
    query["gacha_type"] = "301"
    query["size"] = "5"
    query["lang"] = "en-us"
    q = urllib.parse.urlencode(query, doseq=True)
    url = f'{uri.scheme.decode("utf-8")}://{API_HOST}/{path}?{q}#{fragment}'
    try:
        with urllib.request.urlopen(url, timeout=10) as request:
            # parse json
            data = json.loads(request.read())
        # check error code
        if data["retcode"] == 0:
            return url
    except Exception as e:
        print(e)
    return ""


def main():
    urls = get_wish_urls()
    found = False
    for url in urls:
        if api_url := check_url(url):
            print(f"Found valid url: {api_url}")
            # copy to clipboard, properly escaping the url
            cmd = f'echo "{api_url}" | pbcopy'
            os.system(cmd)
            print("Copied to clipboard.")
            found = True
            break

    if not found:
        print("No valid url found.")
    print("Done.")


if __name__ == "__main__":
    main()