obfusk

#!/bin/bash
set -euo pipefail
zipentry=META-INF/version-control-info.textproto
commit_from_zip() {
  unzip -p -- "$1" "$zipentry" | grep revision | grep -Eo '[0-9a-f]+' | tail -1
}
url="${1:-}"
if [ -z "$url" ]; then
  read -r -p 'url> '
  url="$REPLY"

obfusk

public class Unicode {
  public static void main(String[] args) {
    String foo = "🏳️‍⚧️";
    for (String x : foo.split("")) {
      System.out.println(x.codePointAt(0));
    }
    System.out.println("---");
    int n = foo.codePointCount(0, foo.length());
    for (int i = 0; i < n; ++i) {
      int j = foo.offsetByCodePoints(0, i);

obfusk

[flake8]
ignore = E501

obfusk

#!/usr/bin/python3
# encoding: utf-8
# SPDX-FileCopyrightText: 2024 FC (Fay) Stegerman <[email protected]>
# SPDX-License-Identifier: AGPL-3.0-or-later

import os
import struct
import zipfile

from dataclasses import dataclass

obfusk

x509_canonical_name.py

Python implementation of the Java algorithm for an RFC 2253 conformant string representation of an X.500 distinguished name with additional canonicalisations (as used to compare distinguished names in X.509 certificates for equality in e.g. apksigner and Android).

See the Java documentation.

Caveats

obfusk

import java.security.cert.CertificateFactory
import java.security.cert.X509Certificate

def i = new FileInputStream(args[0])
def cert = CertificateFactory.getInstance("X.509").generateCertificate(i)
println cert.getIssuerX500Principal().getName(javax.security.auth.x500.X500Principal.CANONICAL)

obfusk

perl -pi -e 's/\b(\d+)\b/$1 - 1/e' file-with-numbers

obfusk

#!/usr/bin/python3
import dataclasses
import json
import sys

import repro_apk.binres as binres

data = {}
for apkfile in sys.argv[1:]:
    try:

obfusk

import com.android.apksig.ApkSigner
import com.android.apksig.apk.ApkUtils
import com.android.apksig.internal.apk.v1.V1SchemeVerifier
import com.android.apksig.util.DataSource
import com.android.apksig.util.DataSources

def f = new RandomAccessFile(args[0], "r")
def apk = DataSources.asDataSource(f, 0, f.length())
def zipSections = ApkUtils.findZipSections(apk)
def cdRecords = V1SchemeVerifier.parseZipCentralDirectory(apk, zipSections)

obfusk

#!/usr/bin/python3
# encoding: utf-8
# SPDX-FileCopyrightText: 2024 FC (Fay) Stegerman <[email protected]>
# SPDX-License-Identifier: GPL-3.0-or-later

from typing import Optional

from elftools.elf.elffile import ELFFile
from elftools.elf.sections import NoteSection