Add pfx_extract.py

2025-11-26 08:29:12 +01:00
commit 1971b210d6
1 changed files with 119 additions and 0 deletions
--- a/pfx_extract.py
+++ b/pfx_extract.py
@@ -0,0 +1,119 @@
+#!/usr/bin/env python3
+import argparse
+import os
+import subprocess
+import tarfile
+import tempfile
+import shutil
+import sys
+
+def run_cmd(cmd, password):
+    env = os.environ.copy()
+    # hasło przekazujemy przez zmienną środowiskową, żeby nie wisiało w ps
+    env["PFXPASSWORD"] = password
+    # używamy -passin env:PFXPASSWORD w openssl
+    result = subprocess.run(
+        cmd,
+        env=env,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        text=True,
+    )
+    if result.returncode != 0:
+        print("Błąd wykonania:", " ".join(cmd), file=sys.stderr)
+        print(result.stderr, file=sys.stderr)
+        sys.exit(result.returncode)
+    return result.stdout
+
+def extract_from_pfx(pfx_path, password, out_dir, base_name):
+    key_path = os.path.join(out_dir, f"{base_name}.key.pem")
+    cert_path = os.path.join(out_dir, f"{base_name}.cert.pem")
+    chain_path = os.path.join(out_dir, f"{base_name}.chain.pem")
+
+    # klucz prywatny
+    run_cmd([
+        "openssl", "pkcs12",
+        "-in", pfx_path,
+        "-passin", "env:PFXPASSWORD",
+        "-nodes",
+        "-nocerts",
+        "-out", key_path
+    ], password)
+
+    # cert końcowy
+    run_cmd([
+        "openssl", "pkcs12",
+        "-in", pfx_path,
+        "-passin", "env:PFXPASSWORD",
+        "-clcerts",
+        "-nokeys",
+        "-out", cert_path
+    ], password)
+
+    # certy pośrednie (CA chain) – może być puste, wtedy plik zostanie, ale bez zawartości
+    run_cmd([
+        "openssl", "pkcs12",
+        "-in", pfx_path,
+        "-passin", "env:PFXPASSWORD",
+        "-nokeys",
+        "-cacerts",
+        "-out", chain_path
+    ], password)
+
+    return key_path, cert_path, chain_path
+
+def create_tar_gz(archive_name, files):
+    with tarfile.open(archive_name, "w:gz") as tar:
+        for f in files:
+            if os.path.isfile(f):
+                tar.add(f, arcname=os.path.basename(f))
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Rozszyfruj PFX i spakuj key/cert/chain do tar.gz"
+    )
+    parser.add_argument("pfx", help="Ścieżka do pliku .pfx/.p12")
+    parser.add_argument("password", help="Hasło do pliku PFX")
+    parser.add_argument(
+        "-o", "--output-dir",
+        default=".",
+        help="Katalog wyjściowy (domyślnie bieżący)"
+    )
+
+    args = parser.parse_args()
+
+    pfx_path = os.path.abspath(args.pfx)
+    if not os.path.isfile(pfx_path):
+        print(f"Nie znaleziono pliku: {pfx_path}", file=sys.stderr)
+        sys.exit(1)
+
+    os.makedirs(args.output_dir, exist_ok=True)
+    base_name = os.path.splitext(os.path.basename(pfx_path))[0]
+    archive_name = os.path.join(args.output_dir, f"{base_name}.tar.gz")
+
+    # pracujemy w katalogu tymczasowym, potem wyniki kopiujemy
+    tmpdir = tempfile.mkdtemp(prefix="pfx_extract_")
+    try:
+        key_path, cert_path, chain_path = extract_from_pfx(
+            pfx_path, args.password, tmpdir, base_name
+        )
+
+        # kopiujemy pliki PEM do katalogu wyjściowego (opcjonalne, ale zwykle przydatne)
+        final_key = shutil.copy(key_path, os.path.join(args.output_dir, os.path.basename(key_path)))
+        final_cert = shutil.copy(cert_path, os.path.join(args.output_dir, os.path.basename(cert_path)))
+        final_chain = shutil.copy(chain_path, os.path.join(args.output_dir, os.path.basename(chain_path)))
+
+        # tworzymy tar.gz z tych 3 plików
+        create_tar_gz(archive_name, [final_key, final_cert, final_chain])
+
+        print("Utworzono pliki:")
+        print("  Klucz:      ", final_key)
+        print("  Certyfikat: ", final_cert)
+        print("  Chain:      ", final_chain)
+        print("Archiwum tar.gz:", archive_name)
+
+    finally:
+        shutil.rmtree(tmpdir, ignore_errors=True)
+
+if __name__ == "__main__":
+    main()