rclone-decrypt

Status

Description

rclone-decrypt is a utility which will decrypt files that were encrypted with rclone. The anticipated use-case is that a user has independently downloaded an encrypted file or directory directly from a remote cloud storage (Backblaze B2/Amazon Drive/Dropbox/etc...) and now wants to decrypt it.

Given an rclone.conf file, this tool is simply a wrapper around rclone which sets up a "local remote" to host the downloaded encrypted files and then calls rclone copy in order to decrypt the files into a desired output folder.

Ostensibly I did this because my family backs-up our local NAS to a remote host but the rest of my family prefers to download files one-off from the cloud host and are not comfortable using the rclone CLI. This offers a CLI in addition to an easy-to-use GUI to make life simple.

Notes

• Use at your own risk! Be sure you have copies of anything you're trying to decrypt, just in case something goes wrong!
• When decrypting files with encrypted filenames or folder names, the directory or filename must only consist of the encrypted version. For example, if an encrypted file was downloaded as path_to_encypted_file_4567asd8fasdf67asdf where 4567asd8fasdf67asdf is the encrypted part, the filename must be renamed to exclude the path_to_encypted_file_ portion. Otherwise rclone will complain about invalid encryption names.
• Windows is not currently supported, although it probably would not take very much work to get it there. I do not have ready access to a windows environment on which to test.
• I'd love to make the GUI look more modern, but most solutions involve a style which seems incompatible with tkinterdnd2 which provides the drag and drop feature.

Installation

pip3 install rclone-decrypt

Requirements

General

• rclone must be installed and in $PATH

Python environment

• Python >= 3.8.1
• Python-tk must be installed if using the GUI

Executable

UNDER DEVELOPMENT An OSX .app is generated but is currently untested.

Usage

CLI usage

> rclone-decrypt --config /path/to/rclone.conf --files /path/to/file/or/dir/

Example usages:

> rclone-decrypt --config rclone.conf --files /home/my_encrypted_dir
> rclone-decrypt --config rclone.conf --files /0f12hh28evsof1kgflv67ldcn/9g6h49o4ht35u7o5e4iv5a1h28
> rclone-decrypt --config rclone.conf --files /home/my_encrypted_file.bin

GUI usage

If the python package is installed directly then the GUI can be invoked from the command line, as shown below. Otherwise the packaged binary can be downloaded and executed directly.

• Files can be dropped directly into the big white box.
• As files are dropped, if no output directory has been provided though the file dialog, an output directory called 'out' will be created at the same directory level as the last dropped file to be decrypted.
• A default location for rclone.conf is provided, others can be browsed for.

rclone-decrypt --gui

Development

source .venv/bin/activate
poetry install
poetry run pytest
poetry run flake8
deactivate