2020-11-26 23:56:57 +01:00

89 lines
2.8 KiB
Python

import os
from django.conf import settings
from django.core.management.base import BaseCommand, CommandError
from termcolor import colored as coloured
from documents.models import Document
from paperless.db import GnuPG
class Command(BaseCommand):
help = (
"This is how you migrate your stored documents from an encrypted "
"state to an unencrypted one (or vice-versa)"
)
def add_arguments(self, parser):
parser.add_argument(
"--passphrase",
help="If PAPERLESS_PASSPHRASE isn't set already, you need to "
"specify it here"
)
def handle(self, *args, **options):
try:
print(coloured(
"\n\nWARNING: This script is going to work directly on your "
"document originals, so\nWARNING: you probably shouldn't run "
"this unless you've got a recent backup\nWARNING: handy. It "
"*should* work without a hitch, but be safe and backup your\n"
"WARNING: stuff first.\n\nHit Ctrl+C to exit now, or Enter to "
"continue.\n\n",
"yellow",
attrs=("bold",)
))
__ = input()
except KeyboardInterrupt:
return
passphrase = options["passphrase"] or settings.PASSPHRASE
if not passphrase:
raise CommandError(
"Passphrase not defined. Please set it with --passphrase or "
"by declaring it in your environment or your config."
)
self.__gpg_to_unencrypted(passphrase)
@staticmethod
def __gpg_to_unencrypted(passphrase):
encrypted_files = Document.objects.filter(
storage_type=Document.STORAGE_TYPE_GPG)
for document in encrypted_files:
print(coloured("Decrypting {}".format(
document).encode('utf-8'), "green"))
old_paths = [document.source_path, document.thumbnail_path]
raw_document = GnuPG.decrypted(document.source_file, passphrase)
raw_thumb = GnuPG.decrypted(document.thumbnail_file, passphrase)
document.storage_type = Document.STORAGE_TYPE_UNENCRYPTED
ext = os.path.splitext(document.filename)[1]
if not ext == '.gpg':
raise CommandError(
f"Abort: encrypted file {document.source_path} does not "
f"end with .gpg")
document.filename = os.path.splitext(document.filename)[0]
with open(document.source_path, "wb") as f:
f.write(raw_document)
with open(document.thumbnail_path, "wb") as f:
f.write(raw_thumb)
document.save(update_fields=("storage_type", "filename"))
for path in old_paths:
os.unlink(path)