Decode Battle of Balls Share Links and Automate Dragon Egg Retrieval
This article walks through extracting the hidden ID from Battle of Balls' short share URL, decoding the base64 parameters, and using the revealed ID to request dragon eggs (or lollipops) automatically with a Python script.
After months of not playing Battle of Balls, the author discovered a new dragon‑egg share link and decided to analyze it.
The short URL http://t.cn/RSBFXMR expands to a longer URL containing a b parameter that is base64‑encoded.
Using Chrome DevTools the author captured the request sent to http://cn.battleofballs.com/share?type=3&id=99161845, which appears to fetch the dragon egg.
The b parameter in the expanded URL holds a base64 string. The page's index.js reveals the decoding logic, which involves an obfuscated array _0xa5cf with 135 elements.
Decoding the base64 string yields the clear parameters:
id=99161845&Account=%E6%88%91%E6%81%8B%E5%BD%BC%E6%81%8B&0=temp&Level=6&Scores=1&Icon=4&PassIcon=&type=3
With the extracted id, the author can request the dragon egg directly via http://cn.battleofballs.com/share?type=3&id=99161845. Changing type=1 retrieves a lollipop instead.
The article also provides a Python script (shown in the image below) that automates the request, optionally scheduled as a cron job and using proxy IPs.
Signed-in readers can open the original source through BestHub's protected redirect.
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