decoder.py

import sys
import json
import base64
import base91
import nonsense
import urllib.parse
import binascii


if len(sys.argv) <= 1:
    print("Usage: \n    python3 decoder.py '''input'''")
    exit()
raw = sys.argv[1]

item_list = []

## hex decode
try:
    dec_hex = binascii.a2b_hex(raw).decode()
    result_hex = {
        "title": dec_hex,
        "subtitle": "Hex decode",
        "arg": dec_hex
    }
    item_list.append(result_hex)
except:
    pass

## url decode
dec_url = urllib.parse.unquote(raw)
if len(dec_url) < len(raw):
    result_url = {
        "title": dec_url,
        "subtitle": "URL decode",
        "arg": dec_url
    }
    item_list.append(result_url)

## base64
try:
    dec_64 = base64.b64decode(raw).decode()
    result_64 = {
        "title": dec_64,
        "subtitle": "Base64 decode",
        "arg": dec_64
    }
    item_list.append(result_64)
except:
    pass

## base91
try:
    dec_91 = base91.decode(raw).decode()
    result_91 = {
        "title": dec_91,
        "subtitle": "Base91 decode",
        "arg": dec_91
    }
    item_list.append(result_91)
except:
    pass

## nosense
try:
    dec_nosense = nonsense.decode_nosense(raw)
    result_nosense = {
        "title": dec_nosense,
        "subtitle": "Nosense decode",
        "arg": dec_nosense
    }
    item_list.append(result_nosense)
except:
    pass

## output
if len(item_list) < 1:
    result_null = {
        "title": "No result",
        "subtitle": "All decoding failed.",
        "arg": "No result"
    }
    item_list.append(result_null)

items = {"items": item_list}
sys.stdout.write(json.dumps(items))