Extract files from the Firefox for Android cache using html dumps of "Cache entry information" pages on devices where extracting the Firefox cache is not possible (non-rooted Android devices). Currently hardcoded to write files with the webp extension.

unhexdumpbatch.py

import re
import glob
from bs4 import BeautifulSoup

inputs = glob.glob("input/*.html")

for input in inputs:
    ba = bytearray()

    with open(input, 'r') as file:
        soup = BeautifulSoup(file, 'html.parser')
        data = soup.find_all('pre')[0].contents[0]

        foundbytes = re.findall("[0-9a-f]{8}:((\ \ [0-9a-f]{2}){1,16})", data)
        for byteline in foundbytes:
            cleanbyteline = re.sub(' ', '', byteline[0])
            thebytes = bytes.fromhex(cleanbyteline)
            for b in thebytes:
                ba.append(b)

        with open(f"output/{input[6:-5]}.webp", "wb") as out:
            out.write(ba)
            out.close()