├── .github └── workflows │ ├── createrelease.yml │ ├── pythonpublish.yml │ ├── pythonpublishtest.yml │ └── testpackage.yml ├── .gitignore ├── CITATION.cff ├── LICENSE ├── Makefile ├── Manifest.in ├── README.md ├── opendrop ├── __init__.py ├── __main__.py ├── certs │ └── apple_root_ca.pem ├── cli.py ├── client.py ├── config.py ├── server.py └── util.py ├── requirements-dev.txt ├── setup.cfg ├── setup.py └── tests ├── test_client.py └── test_server.py /.github/workflows/createrelease.yml: -------------------------------------------------------------------------------- 1 | name: Create GitHub release 2 | 3 | on: 4 | push: 5 | # Sequence of patterns matched against refs/tags 6 | tags: 7 | - 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10 8 | 9 | jobs: 10 | build: 11 | name: Create Release 12 | runs-on: ubuntu-latest 13 | steps: 14 | - name: Checkout code 15 | uses: actions/checkout@master 16 | - name: Create Release 17 | id: create_release 18 | uses: actions/create-release@v1 19 | env: 20 | GITHUB_TOKEN: ${{ secrets.PAT_TOKEN }} # instead of GITHUB_TOKEN, otherwise relase workflows are not triggered 21 | with: 22 | tag_name: ${{ github.ref }} 23 | release_name: Release ${{ github.ref }} 24 | draft: false 25 | prerelease: false 26 | -------------------------------------------------------------------------------- /.github/workflows/pythonpublish.yml: -------------------------------------------------------------------------------- 1 | name: Publish at pypi.org 2 | 3 | on: 4 | release: 5 | types: [created] 6 | 7 | jobs: 8 | deploy: 9 | runs-on: ubuntu-latest 10 | steps: 11 | - uses: actions/checkout@v1 12 | - name: Set up Python 13 | uses: actions/setup-python@v1 14 | with: 15 | python-version: '3.7' 16 | - name: Install dependencies 17 | run: | 18 | python -m pip install --upgrade pip 19 | pip install setuptools wheel twine 20 | - name: Build and publish on test 21 | env: 22 | TWINE_USERNAME: __token__ 23 | TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }} 24 | run: | 25 | python setup.py sdist bdist_wheel 26 | twine upload dist/* 27 | -------------------------------------------------------------------------------- /.github/workflows/pythonpublishtest.yml: -------------------------------------------------------------------------------- 1 | name: Publish at test.pypi.org 2 | 3 | on: 4 | release: 5 | types: [created] 6 | 7 | jobs: 8 | deploy: 9 | runs-on: ubuntu-latest 10 | steps: 11 | - uses: actions/checkout@v1 12 | - name: Set up Python 13 | uses: actions/setup-python@v1 14 | with: 15 | python-version: '3.7' 16 | - name: Install dependencies 17 | run: | 18 | python -m pip install --upgrade pip 19 | pip install setuptools wheel twine 20 | - name: Build and publish on test 21 | env: 22 | TWINE_USERNAME: __token__ 23 | TWINE_PASSWORD: ${{ secrets.TEST_PYPI_TOKEN }} 24 | run: | 25 | python setup.py sdist bdist_wheel 26 | twine upload --repository-url https://test.pypi.org/legacy/ dist/* 27 | -------------------------------------------------------------------------------- /.github/workflows/testpackage.yml: -------------------------------------------------------------------------------- 1 | name: Test package 2 | 3 | on: [push, pull_request] 4 | 5 | jobs: 6 | build: 7 | 8 | runs-on: ubuntu-latest 9 | strategy: 10 | matrix: 11 | python-version: [3.6, 3.7, 3.8, 3.9] 12 | 13 | steps: 14 | - uses: actions/checkout@v1 15 | - name: Set up Python ${{ matrix.python-version }} 16 | uses: actions/setup-python@v1 17 | with: 18 | python-version: ${{ matrix.python-version }} 19 | - name: Install dependencies 20 | run: | 21 | python -m pip install --upgrade pip 22 | - name: Install package 23 | run: | 24 | pip install -e . 25 | - name: Check format with isort 26 | run: | 27 | pip install isort 28 | isort -c opendrop/**.py 29 | - name: Check format with black 30 | run: | 31 | pip install black 32 | black . --check --diff 33 | - name: Lint with flake8 34 | run: | 35 | pip install flake8 36 | flake8 . --count --show-source --statistics 37 | - name: Lint with pylint 38 | run: | 39 | pip install pylint 40 | pylint --rcfile=setup.cfg opendrop 41 | - name: Test with pytest 42 | run: | 43 | pip install pytest 44 | pytest 45 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Created by https://www.gitignore.io/api/python,visualstudiocode 2 | 3 | ### Python ### 4 | # Byte-compiled / optimized / DLL files 5 | __pycache__/ 6 | *.py[cod] 7 | *$py.class 8 | 9 | # C extensions 10 | *.so 11 | 12 | # Distribution / packaging 13 | .Python 14 | build/ 15 | develop-eggs/ 16 | dist/ 17 | downloads/ 18 | eggs/ 19 | .eggs/ 20 | lib/ 21 | lib64/ 22 | parts/ 23 | sdist/ 24 | var/ 25 | wheels/ 26 | *.egg-info/ 27 | .installed.cfg 28 | *.egg 29 | 30 | # PyInstaller 31 | # Usually these files are written by a python script from a template 32 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 33 | *.manifest 34 | *.spec 35 | 36 | # Installer logs 37 | pip-log.txt 38 | pip-delete-this-directory.txt 39 | 40 | # Unit test / coverage reports 41 | htmlcov/ 42 | .tox/ 43 | .coverage 44 | .coverage.* 45 | .cache 46 | .pytest_cache/ 47 | nosetests.xml 48 | coverage.xml 49 | *.cover 50 | .hypothesis/ 51 | 52 | # Translations 53 | *.mo 54 | *.pot 55 | 56 | # Flask stuff: 57 | instance/ 58 | .webassets-cache 59 | 60 | # Scrapy stuff: 61 | .scrapy 62 | 63 | # Sphinx documentation 64 | docs/_build/ 65 | 66 | # PyBuilder 67 | target/ 68 | 69 | # Jupyter Notebook 70 | .ipynb_checkpoints 71 | 72 | # pyenv 73 | .python-version 74 | 75 | # celery beat schedule file 76 | celerybeat-schedule.* 77 | 78 | # SageMath parsed files 79 | *.sage.py 80 | 81 | # Environments 82 | .env 83 | .venv 84 | env/ 85 | venv/ 86 | ENV/ 87 | env.bak/ 88 | venv.bak/ 89 | 90 | # Spyder project settings 91 | .spyderproject 92 | .spyproject 93 | 94 | # Rope project settings 95 | .ropeproject 96 | 97 | # mkdocs documentation 98 | /site 99 | 100 | # mypy 101 | .mypy_cache/ 102 | 103 | ### VisualStudioCode ### 104 | .vscode/* 105 | .history 106 | 107 | ### IDEA ### 108 | .idea/ 109 | -------------------------------------------------------------------------------- /CITATION.cff: -------------------------------------------------------------------------------- 1 | # This CITATION.cff file was generated with cffinit. 2 | # Visit https://bit.ly/cffinit to generate yours today! 3 | 4 | cff-version: 1.2.0 5 | title: 'OpenDrop: an Open Source AirDrop Implementation' 6 | message: 'If you use this software, please cite it as below.' 7 | type: software 8 | authors: 9 | - given-names: Alexander 10 | family-names: Heinrich 11 | affiliation: 'SEEMOO, TU Darmstadt' 12 | orcid: 'https://orcid.org/0000-0002-1150-1922' 13 | - given-names: Milan 14 | family-names: Stute 15 | affiliation: 'SEEMOO, TU Darmstadt' 16 | orcid: 'https://orcid.org/0000-0003-4921-8476' 17 | - given-names: Matthias 18 | family-names: Hollick 19 | affiliation: 'SEEMOO, TU Darmstadt' 20 | orcid: 'https://orcid.org/0000-0002-9163-5989' 21 | repository-code: 'https://github.com/seemoo-lab/opendrop' 22 | abstract: >- 23 | OpenDrop is a command-line tool that allows sharing files 24 | between devices directly over Wi-Fi. Its unique feature is 25 | that it is protocol-compatible with Apple AirDrop which 26 | allows to share files with Apple devices running iOS and 27 | macOS. 28 | license: GPL-3.0 29 | commit: cbc7ca46a75bb2da4af9d406732ddf2192578388 30 | version: '0.13' 31 | date-released: '2021-04-29' 32 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Its unique feature is that it is protocol-compatible with Apple AirDrop which allows to share files with Apple devices running iOS and macOS. 7 | ~~Currently (and probably also for the foreseeable future), OpenDrop only supports sending to Apple devices that are discoverable by *everybody* as the default *contacts only* mode requires [Apple-signed certificates](https://www.apple.com/certificateauthority/pdf/Apple_AAI_CPS_v6.1.pdf).~~ 8 | We support contacts-only devices by using extracted AirDrop credentials (keys and certificates) from macOS via our [keychain extractor](https://github.com/seemoo-lab/airdrop-keychain-extractor). 9 | 10 | ## Disclaimer 11 | 12 | OpenDrop is experimental software and is the result of reverse engineering efforts by the [Open Wireless Link](https://owlink.org) project. 13 | Therefore, it does not support all features of AirDrop or might be incompatible with future AirDrop versions. 14 | OpenDrop is not affiliated with or endorsed by Apple Inc. Use this code at your own risk. 15 | 16 | 17 | ## Requirements 18 | 19 | To achieve compatibility with Apple AirDrop, OpenDrop requires the target platform to support a specific Wi-Fi link layer. 20 | In addition, it requires Python >=3.6 as well as several libraries. 21 | 22 | **Apple Wireless Direct Link.** 23 | As AirDrop exclusively runs over Apple Wireless Direct Link (AWDL), OpenDrop is only supported on macOS or on Linux systems running an open re-implementation of AWDL such as [OWL](https://github.com/seemoo-lab/owl). 24 | 25 | **Libraries.** 26 | OpenDrop relies on a current version of [libarchive](https://www.libarchive.org). 27 | macOS ships with a rather old version, so you will need to install a newer version, for example, via [Homebrew](https://brew.sh): 28 | ```bash 29 | brew install libarchive 30 | ``` 31 | OpenDrop automatically sets `DYLD_LIBRARY_PATH` to look for the Homebrew version. You may need to update the variable yourself if you install the libraries differently. 32 | 33 | Linux distributions should ship with more up-to-date versions, so this won't be necessary. 34 | 35 | 36 | ## Installation 37 | 38 | Installation of the Python package [release](https://pypi.org/project/opendrop/) is straightforward using `pip3`: 39 | ``` 40 | pip3 install opendrop 41 | ``` 42 | 43 | You can also install the current development version by first cloning this repository, and then installing it via `pip3`: 44 | ``` 45 | git clone https://github.com/seemoo-lab/opendrop.git 46 | pip3 install ./opendrop 47 | ``` 48 | 49 | 50 | ## Usage 51 | 52 | We briefly explain how to send and receive files using `opendrop`. 53 | To see all command line options, run `opendrop -h`. 54 | 55 | ### Sending a File or a Link 56 | 57 | Sending a file is typically a two-step procedure. You first discover devices in proximity using the `find` command. 58 | Stop the process once you have found the receiver. 59 | ``` 60 | $ opendrop find 61 | Looking for receivers. Press Ctrl+C to stop ... 62 | Found index 0 ID eccb2f2dcfe7 name John’s iPhone 63 | Found index 1 ID e63138ac6ba8 name Jane’s MacBook Pro 64 | ``` 65 | You can then `send` a file (or link, see below) using 66 | ``` 67 | $ opendrop send -r 0 -f /path/to/some/file 68 | Asking receiver to accept ... 69 | Receiver accepted 70 | Uploading file ... 71 | Uploading has been successful 72 | ``` 73 | Instead of the `index`, you can also use `ID` or `name`. 74 | OpenDrop will try to interpret the input in the order (1) `index`, (2) `ID`, and (3) `name` and fail if no match was found. 75 | 76 | **Sending a web link.** Since v0.13, OpenDrop supports sending web links, i.e., URLs, so that receiving Apple devices will immediately open their browser upon accepting. 77 | (Note that OpenDrop _receivers_ still only support receiving regular files.) 78 | 79 | ``` 80 | $ opendrop send -r 0 -f https://owlink.org --url 81 | ``` 82 | 83 | ### Receiving Files 84 | 85 | Receiving is much easier. Simply use the `receive` command. OpenDrop will accept all incoming files automatically and put received files in the current directory. 86 | ``` 87 | $ opendrop receive 88 | ``` 89 | 90 | 91 | ## Current Limitations/TODOs 92 | 93 | OpenDrop is the result of a research project and, thus, has several limitations (non-exhaustive list below). I do not have the capacity to work on them myself but am happy to provide assistance if somebody else want to take them on. 94 | 95 | * *Triggering macOS/iOS receivers via Bluetooth Low Energy.* Apple devices start their AWDL interface and AirDrop server only after receiving a custom advertisement via Bluetooth LE (see USENIX paper for details). This means, that Apple AirDrop receivers may not be discovered even if they are discoverable by *everyone*. 96 | 97 | * *Sender/Receiver authentication and connection state.* Currently, there is no peer authentication as in Apple's AirDrop, in particular, (1) OpenDrop does not verify that the TLS certificate is signed by [Apple's root](opendrop/certs/apple_root_ca.pem) and (2) that the Apple ID validation record is correct (see USENIX paper for details). In addition, OpenDrop automatically accepts any file that it receives due to a missing connection state. 98 | 99 | * *Sending multiple files.* Apple AirDrop supports sending multiple files at once, OpenDrop does not (would require adding more files to the archive, modify HTTP /Ask request, etc.). 100 | 101 | 102 | ## Our Papers 103 | 104 | * Alexander Heinrich, Matthias Hollick, Thomas Schneider, Milan Stute, and Christian Weinert. **PrivateDrop: Practical Privacy-Preserving Authentication for Apple AirDrop.** *30th USENIX Security Symposium (USENIX Security ’21)*, August 14–16, 2019, virtual Event. [Paper](https://www.usenix.org/conference/usenixsecurity21/presentation/heinrich) [Website](https://privatedrop.github.io) [Code](https://github.com/seemoo-lab/privatedrop) 105 | * Milan Stute, Sashank Narain, Alex Mariotto, Alexander Heinrich, David Kreitschmann, Guevara Noubir, and Matthias Hollick. **A Billion Open Interfaces for Eve and Mallory: MitM, DoS, and Tracking Attacks on iOS and macOS Through Apple Wireless Direct Link.** *28th USENIX Security Symposium (USENIX Security ’19)*, August 14–16, 2019, Santa Clara, CA, USA. [Paper](https://www.usenix.org/conference/usenixsecurity19/presentation/stute) 106 | 107 | 108 | ## Authors 109 | 110 | * **Milan Stute** ([email](mailto:mstute@seemoo.tu-darmstadt.de), [web](https://seemoo.de/mstute)) 111 | * **Alexander Heinrich** 112 | 113 | 114 | ## License 115 | 116 | OpenDrop is licensed under the [**GNU General Public License v3.0**](LICENSE). 117 | -------------------------------------------------------------------------------- /opendrop/__init__.py: -------------------------------------------------------------------------------- 1 | """ 2 | OpenDrop: an open source AirDrop implementation 3 | Copyright (C) 2018 Milan Stute 4 | Copyright (C) 2018 Alexander Heinrich 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | """ 19 | 20 | import logging 21 | import os 22 | import platform 23 | 24 | __version__ = "0.13.0" 25 | 26 | if platform.system() == "Darwin": 27 | dyld_path = os.environ.get("DYLD_LIBRARY_PATH", "") # save old path 28 | archive_path = "/usr/local/opt/libarchive/lib" 29 | os.environ["DYLD_LIBRARY_PATH"] = f"{dyld_path}:{archive_path}" 30 | 31 | logger = logging.getLogger(__name__) 32 | -------------------------------------------------------------------------------- /opendrop/__main__.py: -------------------------------------------------------------------------------- 1 | """ 2 | OpenDrop: an open source AirDrop implementation 3 | Copyright (C) 2018 Milan Stute 4 | Copyright (C) 2018 Alexander Heinrich 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | """ 19 | 20 | from opendrop import cli 21 | 22 | cli.main() 23 | -------------------------------------------------------------------------------- /opendrop/certs/apple_root_ca.pem: -------------------------------------------------------------------------------- 1 | -----BEGIN CERTIFICATE----- 2 | MIIEuzCCA6OgAwIBAgIBAjANBgkqhkiG9w0BAQUFADBiMQswCQYDVQQGEwJVUzET 3 | MBEGA1UEChMKQXBwbGUgSW5jLjEmMCQGA1UECxMdQXBwbGUgQ2VydGlmaWNhdGlv 4 | biBBdXRob3JpdHkxFjAUBgNVBAMTDUFwcGxlIFJvb3QgQ0EwHhcNMDYwNDI1MjE0 5 | MDM2WhcNMzUwMjA5MjE0MDM2WjBiMQswCQYDVQQGEwJVUzETMBEGA1UEChMKQXBw 6 | bGUgSW5jLjEmMCQGA1UECxMdQXBwbGUgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkx 7 | FjAUBgNVBAMTDUFwcGxlIFJvb3QgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw 8 | ggEKAoIBAQDkkakJH5HbHkdQ6wXtXnmELes2oldMVeyLGYne+Uts9QerIjAC6Bg+ 9 | +FAJ039BqJj50cpmnCRrEdCju+QbKsMflZ56DKRHi1vUFjczy8QPTc4UadHJGXL1 10 | XQ7Vf1+b8iUDulWPTV0N8WQ1IxVLFVkds5T39pyez1C6wVhQZ48ItCD3y6wsIG9w 11 | tj8BMIy3Q88PnT3zK0koGsj+zrW5DtleHNbLPbU6rfQPDgCSC7EhFi501TwN22IW 12 | q6NxkkdTVcGvL0Gz+PvjcM3mo0xFfh9Ma1CWQYnEdGILEINBhzOKgbEwWOxaBDKM 13 | aLOPHd5lc/9nXmW8Sdh2nzMUZaF3lMktAgMBAAGjggF6MIIBdjAOBgNVHQ8BAf8E 14 | BAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUK9BpR5R2Cf70a40uQKb3 15 | R01/CF4wHwYDVR0jBBgwFoAUK9BpR5R2Cf70a40uQKb3R01/CF4wggERBgNVHSAE 16 | ggEIMIIBBDCCAQAGCSqGSIb3Y2QFATCB8jAqBggrBgEFBQcCARYeaHR0cHM6Ly93 17 | d3cuYXBwbGUuY29tL2FwcGxlY2EvMIHDBggrBgEFBQcCAjCBthqBs1JlbGlhbmNl 18 | IG9uIHRoaXMgY2VydGlmaWNhdGUgYnkgYW55IHBhcnR5IGFzc3VtZXMgYWNjZXB0 19 | YW5jZSBvZiB0aGUgdGhlbiBhcHBsaWNhYmxlIHN0YW5kYXJkIHRlcm1zIGFuZCBj 20 | b25kaXRpb25zIG9mIHVzZSwgY2VydGlmaWNhdGUgcG9saWN5IGFuZCBjZXJ0aWZp 21 | Y2F0aW9uIHByYWN0aWNlIHN0YXRlbWVudHMuMA0GCSqGSIb3DQEBBQUAA4IBAQBc 22 | NplMLXi37Yyb3PN3m/J20ncwT8EfhYOFG5k9RzfyqZtAjizUsZAS2L70c5vu0mQP 23 | y3lPNNiiPvl4/2vIB+x9OYOLUyDTOMSxv5pPCmv/K/xZpwUJfBdAVhEedNO3iyM7 24 | R6PVbyTi69G3cN8PReEnyvFteO3ntRcXqNx+IjXKJdXZD9Zr1KIkIxH3oayPc4Fg 25 | xhtbCS+SsvhESPBgOJ4V9T0mZyCKM2r3DYLP3uujL/lTaltkwGMzd/c6ByxW69oP 26 | IQ7aunMZT7XZNn/Bh1XZp5m5MkL72NVxnn6hUrcbvZNCJBIqxw8dtk2cXmPIS4AX 27 | UKqK1drk/NAJBzewdXUh 28 | -----END CERTIFICATE----- 29 | -------------------------------------------------------------------------------- /opendrop/cli.py: -------------------------------------------------------------------------------- 1 | """ 2 | OpenDrop: an open source AirDrop implementation 3 | Copyright (C) 2018 Milan Stute 4 | Copyright (C) 2018 Alexander Heinrich 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | """ 19 | 20 | import argparse 21 | import json 22 | import logging 23 | import os 24 | import sys 25 | import threading 26 | import time 27 | 28 | from .client import AirDropBrowser, AirDropClient 29 | from .config import AirDropConfig, AirDropReceiverFlags 30 | from .server import AirDropServer 31 | 32 | logger = logging.getLogger(__name__) 33 | 34 | 35 | def main(): 36 | AirDropCli(sys.argv[1:]) 37 | 38 | 39 | class AirDropCli: 40 | def __init__(self, args): 41 | parser = argparse.ArgumentParser() 42 | parser.add_argument("action", choices=["receive", "find", "send"]) 43 | parser.add_argument("-f", "--file", help="File to be sent") 44 | parser.add_argument( 45 | "-u", "--url", help="'-f,--file is a URL", action="store_true" 46 | ) 47 | parser.add_argument( 48 | "-r", 49 | "--receiver", 50 | help="Peer to send file to (can be index, ID, or hostname)", 51 | ) 52 | parser.add_argument( 53 | "-e", "--email", nargs="*", help="User's email addresses (currently unused)" 54 | ) 55 | parser.add_argument( 56 | "-p", "--phone", nargs="*", help="User's phone numbers (currently unused)" 57 | ) 58 | parser.add_argument( 59 | "-n", "--name", help="Computer name (displayed in sharing pane)" 60 | ) 61 | parser.add_argument( 62 | "-m", "--model", help="Computer model (displayed in sharing pane)" 63 | ) 64 | parser.add_argument( 65 | "-d", "--debug", help="Enable debug mode", action="store_true" 66 | ) 67 | parser.add_argument( 68 | "-i", "--interface", help="Which AWDL interface to use", default="awdl0" 69 | ) 70 | args = parser.parse_args(args) 71 | 72 | if args.debug: 73 | logging.basicConfig( 74 | level=logging.DEBUG, 75 | format="%(asctime)s %(levelname)-8s %(name)s: %(message)s", 76 | ) 77 | else: 78 | logging.basicConfig(level=logging.INFO, format="%(message)s") 79 | 80 | # TODO put emails and phone in canonical form (lower case, no '+' sign, etc.) 81 | 82 | self.config = AirDropConfig( 83 | email=args.email, 84 | phone=args.phone, 85 | computer_name=args.name, 86 | computer_model=args.model, 87 | debug=args.debug, 88 | interface=args.interface, 89 | ) 90 | self.server = None 91 | self.client = None 92 | self.browser = None 93 | self.sending_started = False 94 | self.discover = [] 95 | self.lock = threading.Lock() 96 | 97 | try: 98 | if args.action == "receive": 99 | self.receive() 100 | elif args.action == "find": 101 | self.find() 102 | else: # args.action == 'send' 103 | if args.file is None: 104 | parser.error("Need -f,--file when using send") 105 | if not os.path.isfile(args.file) and not args.url: 106 | parser.error("File in -f,--file not found") 107 | self.file = args.file 108 | self.is_url = args.url 109 | if args.receiver is None: 110 | parser.error("Need -r,--receiver when using send") 111 | self.receiver = args.receiver 112 | self.send() 113 | except KeyboardInterrupt: 114 | if self.browser is not None: 115 | self.browser.stop() 116 | if self.server is not None: 117 | self.server.stop() 118 | 119 | def find(self): 120 | logger.info("Looking for receivers. Press Ctrl+C to stop ...") 121 | self.browser = AirDropBrowser(self.config) 122 | self.browser.start(callback_add=self._found_receiver) 123 | try: 124 | threading.Event().wait() 125 | except KeyboardInterrupt: 126 | pass 127 | finally: 128 | self.browser.stop() 129 | logger.debug(f"Save discovery results to {self.config.discovery_report}") 130 | with open(self.config.discovery_report, "w") as f: 131 | json.dump(self.discover, f) 132 | 133 | def _found_receiver(self, info): 134 | thread = threading.Thread(target=self._send_discover, args=(info,)) 135 | thread.start() 136 | 137 | def _send_discover(self, info): 138 | try: 139 | address = info.parsed_addresses()[0] # there should only be one address 140 | except IndexError: 141 | logger.warning(f"Ignoring receiver with missing address {info}") 142 | return 143 | identifier = info.name.split(".")[0] 144 | hostname = info.server 145 | port = int(info.port) 146 | logger.debug(f"AirDrop service found: {hostname}, {address}:{port}, ID {id}") 147 | client = AirDropClient(self.config, (address, int(port))) 148 | try: 149 | flags = int(info.properties[b"flags"]) 150 | except KeyError: 151 | # TODO in some cases, `flags` are not set in service info; for now we'll try anyway 152 | flags = AirDropReceiverFlags.SUPPORTS_DISCOVER_MAYBE 153 | 154 | if flags & AirDropReceiverFlags.SUPPORTS_DISCOVER_MAYBE: 155 | try: 156 | receiver_name = client.send_discover() 157 | except TimeoutError: 158 | receiver_name = None 159 | else: 160 | receiver_name = None 161 | discoverable = receiver_name is not None 162 | 163 | index = len(self.discover) 164 | node_info = { 165 | "name": receiver_name, 166 | "address": address, 167 | "port": port, 168 | "id": identifier, 169 | "flags": flags, 170 | "discoverable": discoverable, 171 | } 172 | self.lock.acquire() 173 | self.discover.append(node_info) 174 | if discoverable: 175 | logger.info(f"Found index {index} ID {identifier} name {receiver_name}") 176 | else: 177 | logger.debug(f"Receiver ID {identifier} is not discoverable") 178 | self.lock.release() 179 | 180 | def receive(self): 181 | self.server = AirDropServer(self.config) 182 | self.server.start_service() 183 | self.server.start_server() 184 | 185 | def send(self): 186 | info = self._get_receiver_info() 187 | if info is None: 188 | return 189 | self.client = AirDropClient(self.config, (info["address"], info["port"])) 190 | logger.info("Asking receiver to accept ...") 191 | if not self.client.send_ask(self.file, is_url=self.is_url): 192 | logger.warning("Receiver declined") 193 | return 194 | logger.info("Receiver accepted") 195 | logger.info("Uploading file ...") 196 | if not self.client.send_upload(self.file, is_url=self.is_url): 197 | logger.warning("Uploading has failed") 198 | return 199 | logger.info("Uploading has been successful") 200 | 201 | def _get_receiver_info(self): 202 | if not os.path.exists(self.config.discovery_report): 203 | logger.error("No discovery report exists, please run 'opendrop find' first") 204 | return None 205 | age = time.time() - os.path.getmtime(self.config.discovery_report) 206 | if age > 60: # warn if report is older than a minute 207 | logger.warning( 208 | f"Old discovery report ({age:.1f} seconds), consider running 'opendrop find' again" 209 | ) 210 | with open(self.config.discovery_report, "r") as f: 211 | infos = json.load(f) 212 | 213 | # (1) try 'index' 214 | try: 215 | self.receiver = int(self.receiver) 216 | return infos[self.receiver] 217 | except ValueError: 218 | pass 219 | except IndexError: 220 | pass 221 | # (2) try 'id' 222 | if len(self.receiver) == 12: 223 | for info in infos: 224 | if info["id"] == self.receiver: 225 | return info 226 | # (3) try hostname 227 | for info in infos: 228 | if info["name"] == self.receiver: 229 | return info 230 | # (fail) 231 | logger.error( 232 | "Receiver does not exist (check -r,--receiver format or try 'opendrop find' again" 233 | ) 234 | return None 235 | -------------------------------------------------------------------------------- /opendrop/client.py: -------------------------------------------------------------------------------- 1 | """ 2 | OpenDrop: an open source AirDrop implementation 3 | Copyright (C) 2018 Milan Stute 4 | Copyright (C) 2018 Alexander Heinrich 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | """ 19 | 20 | import io 21 | import ipaddress 22 | import logging 23 | import os 24 | import platform 25 | import plistlib 26 | import socket 27 | from http.client import HTTPSConnection 28 | 29 | import fleep 30 | import libarchive 31 | from zeroconf import IPVersion, ServiceBrowser, Zeroconf 32 | 33 | from .util import AbsArchiveWrite, AirDropUtil 34 | 35 | logger = logging.getLogger(__name__) 36 | 37 | 38 | class AirDropBrowser: 39 | def __init__(self, config): 40 | self.ip_addr = AirDropUtil.get_ip_for_interface(config.interface, ipv6=True) 41 | if self.ip_addr is None: 42 | if config.interface == "awdl0": 43 | raise RuntimeError( 44 | f"Interface {config.interface} does not have an IPv6 address. Make sure that `owl` is running." 45 | ) 46 | else: 47 | raise RuntimeError( 48 | f"Interface {config.interface} does not have an IPv6 address" 49 | ) 50 | 51 | self.zeroconf = Zeroconf( 52 | interfaces=[str(self.ip_addr)], 53 | ip_version=IPVersion.V6Only, 54 | apple_p2p=platform.system() == "Darwin", 55 | ) 56 | 57 | self.callback_add = None 58 | self.callback_remove = None 59 | self.browser = None 60 | 61 | def start(self, callback_add=None, callback_remove=None): 62 | """ 63 | Start the AirDropBrowser to discover other AirDrop devices 64 | """ 65 | if self.browser is not None: 66 | return # already started 67 | self.callback_add = callback_add 68 | self.callback_remove = callback_remove 69 | self.browser = ServiceBrowser(self.zeroconf, "_airdrop._tcp.local.", self) 70 | 71 | def stop(self): 72 | self.browser.cancel() 73 | self.browser = None 74 | self.zeroconf.close() 75 | 76 | def add_service(self, zeroconf, service_type, name): 77 | info = zeroconf.get_service_info(service_type, name) 78 | logger.debug(f"Add service {name}") 79 | if self.callback_add is not None: 80 | self.callback_add(info) 81 | 82 | def remove_service(self, zeroconf, service_type, name): 83 | info = zeroconf.get_service_info(service_type, name) 84 | logger.debug(f"Remove service {name}") 85 | if self.callback_remove is not None: 86 | self.callback_remove(info) 87 | 88 | 89 | class AirDropClient: 90 | def __init__(self, config, receiver): 91 | self.config = config 92 | self.receiver_host = receiver[0] 93 | self.receiver_port = receiver[1] 94 | self.http_conn = None 95 | 96 | def send_POST(self, url, body, headers=None): 97 | logger.debug(f"Send {url} request") 98 | 99 | AirDropUtil.write_debug( 100 | self.config, body, f"send_{url.lower().strip('/')}_request.plist" 101 | ) 102 | 103 | _headers = self._get_headers() 104 | if headers is not None: 105 | for key, val in headers.items(): 106 | _headers[key] = val 107 | if self.http_conn is None: 108 | # Use single connection 109 | self.http_conn = HTTPSConnectionAWDL( 110 | self.receiver_host, 111 | self.receiver_port, 112 | interface_name=self.config.interface, 113 | context=self.config.get_ssl_context(), 114 | ) 115 | self.http_conn.request("POST", url, body=body, headers=_headers) 116 | http_resp = self.http_conn.getresponse() 117 | 118 | response_bytes = http_resp.read() 119 | AirDropUtil.write_debug( 120 | self.config, 121 | response_bytes, 122 | f"send_{url.lower().strip('/')}_response.plist", 123 | ) 124 | 125 | if http_resp.status != 200: 126 | status = False 127 | logger.debug(f"{url} request failed: {http_resp.status}") 128 | else: 129 | status = True 130 | logger.debug(f"{url} request successful") 131 | return status, response_bytes 132 | 133 | def send_discover(self): 134 | discover_body = {} 135 | if self.config.record_data: 136 | discover_body["SenderRecordData"] = self.config.record_data 137 | 138 | discover_plist_binary = plistlib.dumps( 139 | discover_body, fmt=plistlib.FMT_BINARY # pylint: disable=no-member 140 | ) 141 | _, response_bytes = self.send_POST("/Discover", discover_plist_binary) 142 | response = plistlib.loads(response_bytes) 143 | 144 | # if name is returned, then receiver is discoverable 145 | return response.get("ReceiverComputerName") 146 | 147 | def send_ask(self, file_path, is_url=False, icon=None): 148 | ask_body = { 149 | "SenderComputerName": self.config.computer_name, 150 | "BundleID": "com.apple.finder", 151 | "SenderModelName": self.config.computer_model, 152 | "SenderID": self.config.service_id, 153 | "ConvertMediaFormats": False, 154 | } 155 | if self.config.record_data: 156 | ask_body["SenderRecordData"] = self.config.record_data 157 | 158 | def file_entries(files): 159 | for file in files: 160 | file_name = os.path.basename(file) 161 | file_entry = { 162 | "FileName": file_name, 163 | "FileType": AirDropUtil.get_uti_type(flp), 164 | "FileBomPath": os.path.join(".", file_name), 165 | "FileIsDirectory": os.path.isdir(file_name), 166 | "ConvertMediaFormats": 0, 167 | } 168 | yield file_entry 169 | 170 | if isinstance(file_path, str): 171 | file_path = [file_path] 172 | if is_url: 173 | ask_body["Items"] = file_path 174 | else: 175 | # generate icon for first file 176 | with open(file_path[0], "rb") as f: 177 | file_header = f.read(128) 178 | flp = fleep.get(file_header) 179 | if not icon and len(flp.mime) > 0 and "image" in flp.mime[0]: 180 | icon = AirDropUtil.generate_file_icon(f.name) 181 | ask_body["Files"] = [e for e in file_entries(file_path)] 182 | if icon: 183 | ask_body["FileIcon"] = icon 184 | 185 | ask_binary = plistlib.dumps( 186 | ask_body, fmt=plistlib.FMT_BINARY # pylint: disable=no-member 187 | ) 188 | success, _ = self.send_POST("/Ask", ask_binary) 189 | 190 | return success 191 | 192 | def send_upload(self, file_path, is_url=False): 193 | """ 194 | Send a file to a receiver. 195 | """ 196 | # Don't send an upload request if we just sent a link 197 | if is_url: 198 | return 199 | 200 | headers = { 201 | "Content-Type": "application/x-cpio", 202 | } 203 | 204 | # Create archive in memory ... 205 | stream = io.BytesIO() 206 | with libarchive.custom_writer( 207 | stream.write, 208 | "cpio", 209 | filter_name="gzip", 210 | archive_write_class=AbsArchiveWrite, 211 | ) as archive: 212 | for f in [file_path]: 213 | ff = os.path.basename(f) 214 | archive.add_abs_file(f, os.path.join(".", ff)) 215 | stream.seek(0) 216 | 217 | # ... then send in chunked mode 218 | success, _ = self.send_POST("/Upload", stream, headers=headers) 219 | 220 | # TODO better: write archive chunk whenever send_POST does a read to avoid having the whole archive in memory 221 | 222 | return success 223 | 224 | def _get_headers(self): 225 | """ 226 | Get the headers for requests sent 227 | """ 228 | headers = { 229 | "Content-Type": "application/octet-stream", 230 | "Connection": "keep-alive", 231 | "Accept": "*/*", 232 | "User-Agent": "AirDrop/1.0", 233 | "Accept-Language": "en-us", 234 | "Accept-Encoding": "br, gzip, deflate", 235 | } 236 | return headers 237 | 238 | 239 | class HTTPSConnectionAWDL(HTTPSConnection): 240 | """ 241 | This class allows to bind the HTTPConnection to a specific network interface 242 | """ 243 | 244 | def __init__( 245 | self, 246 | host, 247 | port=None, 248 | key_file=None, 249 | cert_file=None, 250 | timeout=None, 251 | source_address=None, 252 | *, 253 | context=None, 254 | check_hostname=None, 255 | interface_name=None, 256 | ): 257 | 258 | if interface_name is not None: 259 | if "%" not in host: 260 | if isinstance(ipaddress.ip_address(host), ipaddress.IPv6Address): 261 | host = host + "%" + interface_name 262 | 263 | if timeout is None: 264 | timeout = socket.getdefaulttimeout() 265 | 266 | super(HTTPSConnectionAWDL, self).__init__( 267 | host=host, 268 | port=port, 269 | key_file=key_file, 270 | cert_file=cert_file, 271 | timeout=timeout, 272 | source_address=source_address, 273 | context=context, 274 | check_hostname=check_hostname, 275 | ) 276 | 277 | self.interface_name = interface_name 278 | self._create_connection = self.create_connection_awdl 279 | 280 | def create_connection_awdl( 281 | self, address, timeout=socket.getdefaulttimeout(), source_address=None 282 | ): 283 | """Connect to *address* and return the socket object. 284 | 285 | Convenience function. Connect to *address* (a 2-tuple ``(host, 286 | port)``) and return the socket object. Passing the optional 287 | *timeout* parameter will set the timeout on the socket instance 288 | before attempting to connect. If no *timeout* is supplied, the 289 | global default timeout setting returned by :func:`getdefaulttimeout` 290 | is used. If *source_address* is set it must be a tuple of (host, port) 291 | for the socket to bind as a source address before making the connection. 292 | A host of '' or port 0 tells the OS to use the default. 293 | """ 294 | 295 | host, port = address 296 | err = None 297 | for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM): 298 | af, socktype, proto, _, sa = res 299 | sock = None 300 | try: 301 | sock = socket.socket(af, socktype, proto) 302 | if timeout is not socket.getdefaulttimeout(): 303 | sock.settimeout(timeout) 304 | if self.interface_name == "awdl0" and platform.system() == "Darwin": 305 | sock.setsockopt(socket.SOL_SOCKET, 0x1104, 1) 306 | if source_address: 307 | sock.bind(source_address) 308 | sock.connect(sa) 309 | # Break explicitly a reference cycle 310 | return sock 311 | 312 | except socket.error as _: 313 | err = _ 314 | if sock is not None: 315 | sock.close() 316 | 317 | if err is not None: 318 | raise err 319 | else: 320 | raise socket.error("getaddrinfo returns an empty list") 321 | -------------------------------------------------------------------------------- /opendrop/config.py: -------------------------------------------------------------------------------- 1 | """ 2 | OpenDrop: an open source AirDrop implementation 3 | Copyright (C) 2018 Milan Stute 4 | Copyright (C) 2018 Alexander Heinrich 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | """ 19 | 20 | import logging 21 | import os 22 | import random 23 | import socket 24 | import ssl 25 | import subprocess 26 | 27 | from pkg_resources import resource_filename 28 | 29 | logger = logging.getLogger(__name__) 30 | 31 | 32 | class AirDropReceiverFlags: 33 | """ 34 | Recovered from sharingd`receiverSupportsX methods. 35 | A valid node needs to either have SUPPORTS_PIPELINING or SUPPORTS_MIXED_TYPES 36 | according to sharingd`[SDBonjourBrowser removeInvalidNodes:]. 37 | Default flags on macOS: 0x3fb according to sharingd`[SDRapportBrowser defaultSFNodeFlags] 38 | """ 39 | 40 | SUPPORTS_URL = 0x01 41 | SUPPORTS_DVZIP = 0x02 42 | SUPPORTS_PIPELINING = 0x04 43 | SUPPORTS_MIXED_TYPES = 0x08 44 | SUPPORTS_UNKNOWN1 = 0x10 45 | SUPPORTS_UNKNOWN2 = 0x20 46 | SUPPORTS_IRIS = 0x40 47 | SUPPORTS_DISCOVER_MAYBE = ( 48 | 0x80 # Probably indicates that server supports /Discover URL 49 | ) 50 | SUPPORTS_UNKNOWN3 = 0x100 51 | SUPPORTS_ASSET_BUNDLE = 0x200 52 | 53 | 54 | class AirDropConfig: 55 | def __init__( 56 | self, 57 | host_name=None, 58 | computer_name=None, 59 | computer_model=None, 60 | server_port=8771, 61 | airdrop_dir="~/.opendrop", 62 | service_id=None, 63 | email=None, 64 | phone=None, 65 | debug=False, 66 | interface=None, 67 | ): 68 | self.airdrop_dir = os.path.expanduser(airdrop_dir) 69 | 70 | self.discovery_report = os.path.join(self.airdrop_dir, "discover.last.json") 71 | 72 | if host_name is None: 73 | host_name = socket.gethostname() 74 | self.host_name = host_name 75 | if computer_name is None: 76 | computer_name = host_name 77 | self.computer_name = computer_name 78 | if computer_model is None: 79 | computer_model = "OpenDrop" 80 | self.computer_model = computer_model 81 | self.port = server_port 82 | 83 | if service_id is None: 84 | service_id = f"{random.randint(0, 0xFFFFFFFFFFFF):012x}" # random 6-byte string in base16 85 | self.service_id = service_id 86 | 87 | self.debug = debug 88 | self.debug_dir = os.path.join(self.airdrop_dir, "debug") 89 | 90 | if interface is None: 91 | interface = "awdl0" 92 | self.interface = interface 93 | 94 | if email is None: 95 | email = [] 96 | self.email = email 97 | if phone is None: 98 | phone = [] 99 | self.phone = phone 100 | 101 | # Bare minimum, we currently do not support anything else 102 | self.flags = ( 103 | AirDropReceiverFlags.SUPPORTS_MIXED_TYPES 104 | | AirDropReceiverFlags.SUPPORTS_DISCOVER_MAYBE 105 | ) 106 | 107 | self.root_ca_file = resource_filename("opendrop", "certs/apple_root_ca.pem") 108 | if not os.path.exists(self.root_ca_file): 109 | raise FileNotFoundError( 110 | f"Need Apple root CA certificate: {self.root_ca_file}" 111 | ) 112 | 113 | self.key_dir = os.path.join(self.airdrop_dir, "keys") 114 | self.cert_file = os.path.join(self.key_dir, "certificate.pem") 115 | self.key_file = os.path.join(self.key_dir, "key.pem") 116 | 117 | if not os.path.exists(self.cert_file) or not os.path.exists(self.key_file): 118 | logger.info("Key file or certificate does not exist") 119 | self.create_default_key() 120 | 121 | self.record_file = os.path.join(self.key_dir, "validation_record.cms") 122 | self.record_data = None 123 | if os.path.exists(self.record_file): 124 | logger.debug("Using provided Apple ID Validation Record") 125 | with open(self.record_file, "rb") as f: 126 | self.record_data = f.read() 127 | else: 128 | logger.debug("No Apple ID Validation Record found") 129 | 130 | def create_default_key(self): 131 | logger.info(f"Create new self-signed certificate in {self.key_dir}") 132 | if not os.path.exists(self.key_dir): 133 | os.makedirs(self.key_dir) 134 | subprocess.run( 135 | [ 136 | "openssl", 137 | "req", 138 | "-newkey", 139 | "rsa:2048", 140 | "-nodes", 141 | "-keyout", 142 | "key.pem", 143 | "-x509", 144 | "-days", 145 | "365", 146 | "-out", 147 | "certificate.pem", 148 | "-subj", 149 | f"/CN={self.computer_name}", 150 | ], 151 | cwd=self.key_dir, 152 | stdout=subprocess.PIPE, 153 | stderr=subprocess.PIPE, 154 | check=True, 155 | ) 156 | 157 | def get_ssl_context(self): 158 | 159 | ctx = ssl.SSLContext( # lgtm[py/insecure-protocol], TODO see https://github.com/Semmle/ql/issues/2554 160 | ssl.PROTOCOL_TLS 161 | ) 162 | ctx.options |= ssl.OP_NO_TLSv1 # TLSv1.0 is insecure 163 | ctx.load_cert_chain(self.cert_file, keyfile=self.key_file) 164 | ctx.load_verify_locations(cafile=self.root_ca_file) 165 | ctx.verify_mode = ( 166 | ssl.CERT_NONE 167 | ) # we accept self-signed certificates as does Apple 168 | return ctx 169 | -------------------------------------------------------------------------------- /opendrop/server.py: -------------------------------------------------------------------------------- 1 | """ 2 | OpenDrop: an open source AirDrop implementation 3 | Copyright (C) 2018 Milan Stute 4 | Copyright (C) 2018 Alexander Heinrich 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | """ 19 | import io 20 | import json 21 | import logging 22 | import platform 23 | import plistlib 24 | import socket 25 | import time 26 | from http.server import BaseHTTPRequestHandler, HTTPServer 27 | 28 | import libarchive 29 | import libarchive.extract 30 | import libarchive.read 31 | from zeroconf import IPVersion, ServiceInfo, Zeroconf 32 | 33 | from .util import AirDropUtil 34 | 35 | logger = logging.getLogger(__name__) 36 | 37 | 38 | class AirDropServer: 39 | """ 40 | Announces an HTTPS AirDrop server in the local network via mDNS. 41 | """ 42 | 43 | def __init__(self, config): 44 | self.config = config 45 | 46 | # Use IPv6 47 | self.serveraddress = ("::", self.config.port) 48 | self.ServerClass = HTTPServerV6 49 | self.ServerClass.allow_reuse_address = False 50 | 51 | self.ip_addr = AirDropUtil.get_ip_for_interface( 52 | self.config.interface, ipv6=True 53 | ) 54 | if self.ip_addr is None: 55 | if self.config.interface == "awdl0": 56 | raise RuntimeError( 57 | f"Interface {self.config.interface} does not have an IPv6 address. Make sure that `owl` is running." 58 | ) 59 | else: 60 | raise RuntimeError( 61 | f"Interface {self.config.interface} does not have an IPv6 address" 62 | ) 63 | 64 | self.Handler = AirDropServerHandler 65 | self.Handler.config = self.config 66 | 67 | self.zeroconf = Zeroconf( 68 | interfaces=[str(self.ip_addr)], 69 | ip_version=IPVersion.V6Only, 70 | apple_p2p=platform.system() == "Darwin", 71 | ) 72 | 73 | self.http_server = self._init_server() 74 | self.service_info = self._init_service() 75 | 76 | def _init_service(self): 77 | properties = self.get_properties() 78 | server = self.config.host_name + ".local." 79 | service_name = self.config.service_id + "._airdrop._tcp.local." 80 | info = ServiceInfo( 81 | "_airdrop._tcp.local.", 82 | service_name, 83 | port=self.config.port, 84 | properties=properties, 85 | server=server, 86 | addresses=[self.ip_addr.packed], 87 | ) 88 | return info 89 | 90 | def start_service(self): 91 | logger.info( 92 | f"Announcing service: host {self.config.host_name}, address {self.ip_addr}, port {self.config.port}" 93 | ) 94 | self.zeroconf.register_service(self.service_info) 95 | 96 | def _init_server(self): 97 | try: 98 | httpd = self.ServerClass(self.serveraddress, self.Handler) 99 | except OSError: 100 | # Address in use. Change port 101 | self.config.port = self.config.port + 1 102 | self.serveraddress = (self.serveraddress[0], self.config.port) 103 | httpd = self.ServerClass(self.serveraddress, self.Handler) 104 | 105 | # Adapt socket for awdl0 106 | if self.config.interface == "awdl0" and platform.system() == "Darwin": 107 | httpd.socket.setsockopt(socket.SOL_SOCKET, 0x1104, 1) 108 | 109 | httpd.socket = self.config.get_ssl_context().wrap_socket( 110 | sock=httpd.socket, server_side=True 111 | ) 112 | 113 | return httpd 114 | 115 | def start_server(self): 116 | logger.info("Starting HTTPS server") 117 | self.http_server.serve_forever() 118 | 119 | def stop(self): 120 | self.zeroconf.unregister_all_services() 121 | self.http_server.shutdown() 122 | 123 | def get_properties(self): 124 | properties = {b"flags": str(self.config.flags).encode("utf-8")} 125 | return properties 126 | 127 | 128 | class HTTPServerV6(HTTPServer): 129 | address_family = socket.AF_INET6 130 | 131 | 132 | class AirDropServerHandler(BaseHTTPRequestHandler): 133 | """ 134 | Server which responds to AirDrop HTTP POST requests 135 | """ 136 | 137 | protocol_version = "HTTP/1.1" 138 | config = None 139 | 140 | def _set_response(self, content_length): 141 | """ 142 | Setting the default values for a successful response 143 | """ 144 | self.send_response(200) 145 | self.send_header("Content-Length", content_length) 146 | self.end_headers() 147 | 148 | def do_HEAD(self): 149 | """ 150 | Answer head requests 151 | """ 152 | self.send_response(200) 153 | self.send_header("Content-type", "text/html") 154 | self.end_headers() 155 | 156 | def do_GET(self): 157 | """ 158 | Answer get requests 159 | """ 160 | logger.debug(f"GET request at {self.path}") 161 | body = "\n".encode("utf-8") 162 | self._set_response(len(body)) 163 | self.wfile.write(body) 164 | 165 | def handle_discover(self): 166 | content_length = int(self.headers["Content-Length"]) 167 | post_data = self.rfile.read(content_length) 168 | 169 | AirDropUtil.write_debug( 170 | self.config, post_data, "receive_discover_request.plist" 171 | ) 172 | 173 | # sample media capabilities as recorded from macOS 10.13.3 174 | media_capabilities = { 175 | "Version": 1, 176 | # don't advertise any codec/container support so we receive legacy file formats (JPEG instead of HEIF, etc.) 177 | # 'Codecs': { 178 | # 'hvc1': { 179 | # 'Profiles': { 180 | # 'VTPerProfileSupport': { 181 | # '1': {'VTMaxPlaybackLevel': 120}, 182 | # '2': {'VTMaxPlaybackLevel': 120}, 183 | # '3': {} 184 | # }, 185 | # 'VTSupportedProfiles': [1, 2, 3] 186 | # } 187 | # } 188 | # }, 189 | # 'ContainerFormats': { 190 | # 'public.heif-standard': { 191 | # 'HeifSubtypes': ['public.avci', 'public.heic', 'public.heif'] 192 | # } 193 | # }, 194 | # 'Vendor': { 195 | # 'com.apple': { 196 | # 'OSVersion': [10, 13, 3], 197 | # 'OSBuildVersion': '17D102', 198 | # 'LivePhotoFormatVersion': '1' 199 | # } 200 | # } 201 | } 202 | media_capabilities_json = json.JSONEncoder().encode(media_capabilities) 203 | media_capabilities_binary = media_capabilities_json.encode("utf-8") 204 | discover_answer = { 205 | "ReceiverMediaCapabilities": media_capabilities_binary, 206 | "ReceiverComputerName": self.config.computer_name, 207 | "ReceiverModelName": self.config.computer_model, 208 | } 209 | if self.config.record_data: 210 | discover_answer["ReceiverRecordData"] = self.config.record_data 211 | 212 | discover_answer_binary = plistlib.dumps( 213 | discover_answer, fmt=plistlib.FMT_BINARY # pylint: disable=no-member 214 | ) 215 | 216 | AirDropUtil.write_debug( 217 | self.config, discover_answer_binary, "receive_discover_response.plist" 218 | ) 219 | 220 | # Change to actual length 221 | self._set_response(len(discover_answer_binary)) 222 | self.wfile.write(discover_answer_binary) 223 | 224 | def handle_ask(self): 225 | content_length = int(self.headers["Content-Length"]) 226 | post_data = self.rfile.read(content_length) 227 | 228 | AirDropUtil.write_debug(self.config, post_data, "receive_ask_request.plist") 229 | 230 | ask_response = { 231 | "ReceiverModelName": self.config.computer_model, 232 | "ReceiverComputerName": self.config.computer_name, 233 | } 234 | ask_resp_binary = plistlib.dumps( 235 | ask_response, fmt=plistlib.FMT_BINARY # pylint: disable=no-member 236 | ) 237 | 238 | AirDropUtil.write_debug( 239 | self.config, ask_resp_binary, "receive_ask_response.plist" 240 | ) 241 | 242 | self._set_response(len(ask_resp_binary)) 243 | self.wfile.write(ask_resp_binary) 244 | 245 | def handle_upload(self): 246 | if self.headers.get("content-type", "").lower() != "application/x-cpio": 247 | logger.warning( 248 | f"Unsupported content-type: {self.headers.get('content-type')}" 249 | ) 250 | self.send_response(406) # Unprocessable Entity 251 | self.send_header("Content-Type", "application/x-cpio") 252 | self.send_header("Content-Length", 0) 253 | self.send_header("Connection", "close") 254 | self.end_headers() 255 | return 256 | 257 | # If pipelining is not support, 'Expect: 100-continue' is sent to which we need to respond 258 | if self.headers.get("expect", "").lower() == "100-continue": 259 | self.send_response(100) 260 | self.send_header("Content-Length", 0) 261 | self.end_headers() 262 | 263 | if self.headers.get("transfer-encoding", "").lower() != "chunked": 264 | logger.warning("Expect chunked transfer encoding") 265 | self.send_response(400) # Bad Request 266 | self.send_header("Transfer-Encoding", "Chunked") 267 | self.send_header("Content-Length", 0) 268 | self.send_header("Connection", "close") 269 | self.end_headers() 270 | return 271 | 272 | class HTTPChunkedReader(io.RawIOBase): 273 | def __init__(self, rfile, *args, **kwargs): 274 | super().__init__(*args, **kwargs) 275 | self.rfile = rfile 276 | self.chunk = None 277 | self.total = 0 278 | 279 | def _next_chunk(self): 280 | if self.chunk is None or len(self.chunk) == 0: 281 | length = int(self.rfile.readline().rstrip(), 16) 282 | self.chunk = self.rfile.read(length) 283 | self.rfile.readline() # strip trailing \n\r 284 | 285 | def readinto(self, buf): 286 | self._next_chunk() 287 | length = min(len(self.chunk), len(buf)) 288 | buf[:length] = self.chunk[:length] 289 | self.chunk = self.chunk[length:] 290 | self.total += length 291 | return length 292 | 293 | def extract_stream(stream, flags=0): 294 | """ 295 | Extracts an archive from memory into the current directory. 296 | """ 297 | 298 | with libarchive.read.stream_reader(stream) as archive: 299 | libarchive.extract.extract_entries(archive, flags) 300 | 301 | logger.info("Receiving file(s) ...") 302 | start = time.time() 303 | reader = HTTPChunkedReader(self.rfile) 304 | extract_stream(reader) 305 | 306 | transferred = reader.total / 1024.0 / 1024.0 307 | speed = transferred / (time.time() - start) 308 | logger.info( 309 | f"File(s) received (size {transferred:.02f} MB, speed {speed:.02f} MB/s)" 310 | ) 311 | 312 | self.send_response(200) 313 | self.send_header("Content-Length", 0) 314 | self.send_header("Connection", "close") 315 | self.end_headers() 316 | 317 | def do_POST(self): 318 | """ 319 | Handle post requests 320 | """ 321 | 322 | logger.debug(f"POST request at {self.path}") 323 | logger.debug(f"Headers\n{self.headers}") 324 | 325 | if self.path == "/Discover": 326 | self.handle_discover() 327 | elif self.path == "/Ask": 328 | self.handle_ask() 329 | elif self.path == "/Upload": 330 | self.handle_upload() 331 | else: 332 | logger.debug(f"POST request at {self.path}") 333 | self.send_response(400) 334 | self.send_header("Content-Length", 0) 335 | self.end_headers() 336 | 337 | def log_message(self, format, *args): 338 | # pylint: disable=redefined-builtin 339 | logger.debug( 340 | f"{self.client_address[0]} - - [{self.log_date_time_string()}] {format % args}" 341 | ) 342 | -------------------------------------------------------------------------------- /opendrop/util.py: -------------------------------------------------------------------------------- 1 | """ 2 | OpenDrop: an open source AirDrop implementation 3 | Copyright (C) 2018 Milan Stute 4 | Copyright (C) 2018 Alexander Heinrich 5 | 6 | This program is free software: you can redistribute it and/or modify 7 | it under the terms of the GNU General Public License as published by 8 | the Free Software Foundation, either version 3 of the License, or 9 | (at your option) any later version. 10 | 11 | This program is distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | GNU General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public License 17 | along with this program. If not, see . 18 | """ 19 | 20 | import io 21 | import ipaddress 22 | import os 23 | 24 | import ifaddr 25 | from libarchive.entry import ArchiveEntry, new_archive_entry 26 | from libarchive.ffi import ( # pylint: disable=no-name-in-module 27 | ARCHIVE_EOF, 28 | entry_clear, 29 | entry_sourcepath, 30 | read_disk_descend, 31 | read_next_header2, 32 | write_data, 33 | write_finish_entry, 34 | write_get_bytes_per_block, 35 | write_header, 36 | ) 37 | from libarchive.write import ArchiveWrite, new_archive_read_disk 38 | from PIL import ExifTags, Image 39 | 40 | 41 | class AirDropUtil: 42 | """ 43 | This class contains a set of utility functions that support the opendrop implementation 44 | They have been moved, because the opendrop files tend to get too long 45 | """ 46 | 47 | @staticmethod 48 | def get_uti_type(flp) -> str: 49 | """ 50 | Get the Apple conform UTI Type from a flp instance which has been used on the data which should be sent 51 | 52 | :param flp: fleep object 53 | """ 54 | 55 | # Default UTI Type 56 | uti_type = "public.content" 57 | if len(flp.mime) == 0 or len(flp.type) == 0: 58 | return uti_type 59 | 60 | mime = flp.mime[0] 61 | f_type = flp.type[0] 62 | if "image" in mime: 63 | uti_type = "public.image" 64 | 65 | if "jpg" in mime: 66 | uti_type = "public.jpeg" 67 | elif "jp2" in mime: 68 | uti_type = "public.jpeg-2000" 69 | elif "gif" in mime: 70 | uti_type = "com.compuserve.gif" 71 | elif "png" in mime: 72 | uti_type = "public.png" 73 | elif "raw" in mime or "raw" in f_type: 74 | uti_type = "public.camera-raw-image" 75 | elif "audio" in f_type: 76 | uti_type = "public.audio" 77 | elif "video" in f_type: 78 | uti_type = "public.video" 79 | elif "archive" in f_type: 80 | uti_type = "public.data" 81 | 82 | if "gzip" in mime: 83 | uti_type = "org.gnu.gnu-zip-archive" 84 | if "zip" in mime: 85 | uti_type = "public.zip-archive" 86 | 87 | return uti_type 88 | 89 | @staticmethod 90 | def generate_file_icon(file_path): 91 | """ 92 | Generates a small and a big thumbnail of an image 93 | This will make it possible to preview the sent file 94 | 95 | :param file_path: The path to the image 96 | """ 97 | im = Image.open(file_path) 98 | 99 | # rotate according to EXIF tags 100 | try: 101 | exif = dict( 102 | (ExifTags.TAGS[k], v) 103 | for k, v in im._getexif().items() # pylint: disable=protected-access 104 | if k in ExifTags.TAGS 105 | ) 106 | angles = {3: 180, 6: 270, 8: 90} 107 | orientation = exif["Orientation"] 108 | if orientation in angles.keys(): 109 | im = im.rotate(angles[orientation], expand=True) 110 | except (AttributeError, KeyError): 111 | pass # no EXIF data available 112 | 113 | # Big image 114 | im.thumbnail((540, 540), Image.ANTIALIAS) 115 | img_bytes = io.BytesIO() 116 | im.save(img_bytes, format="JPEG2000") 117 | file_icon = img_bytes.getvalue() 118 | 119 | # Small image 120 | # im.thumbnail((64, 64), Image.ANTIALIAS) 121 | # img_bytes = io.BytesIO() 122 | # im.save(img_bytes, format='JPEG2000') 123 | # small_file_icon = img_bytes.getvalue() 124 | 125 | return file_icon 126 | 127 | @staticmethod 128 | def get_ip_for_interface(interface_name, ipv6=False): 129 | """ 130 | Get the ip address in IPv4 or IPv6 for a specific network interface 131 | 132 | :param str interface_name: declares the network interface name for which the ip should be accessed 133 | :param bool ipv6: Boolean indicating if the ipv6 address should be retrieved 134 | :return: IPv4Address or IPv6Address object or None 135 | """ 136 | 137 | def get_interface_by_name(name): 138 | for interface in ifaddr.get_adapters(): 139 | if interface.name == name: 140 | return interface 141 | return None 142 | 143 | interface = get_interface_by_name(interface_name) 144 | if interface is None: 145 | return None 146 | 147 | for ip in interface.ips: 148 | if ip.is_IPv6 and ipv6: 149 | return ipaddress.IPv6Address( 150 | ip.ip[0] 151 | ) # first of (ip, flowinfo, scope_id) tuple 152 | if ip.is_IPv4 and not ipv6: 153 | return ipaddress.IPv4Address(ip.ip) 154 | 155 | return None 156 | 157 | @staticmethod 158 | def write_debug(config, data, file_name): 159 | if not config.debug: 160 | return 161 | if not os.path.exists(config.debug_dir): 162 | os.makedirs(config.debug_dir) 163 | debug_file_path = os.path.join(config.debug_dir, file_name) 164 | with open(debug_file_path, "wb") as file: 165 | if hasattr(data, "read"): 166 | file.write(data.read()) 167 | data.seek(0) # reset cursor position 168 | else: # assume bytes-like 169 | file.write(data) 170 | 171 | 172 | class AbsArchiveWrite(ArchiveWrite): 173 | def add_abs_file(self, path, store_path): 174 | """ 175 | Read the given paths from disk and add them to the archive. 176 | """ 177 | write_p = self._pointer 178 | 179 | block_size = write_get_bytes_per_block(write_p) 180 | if block_size <= 0: 181 | block_size = 10240 # pragma: no cover 182 | 183 | with new_archive_entry() as entry_p: 184 | entry = ArchiveEntry(None, entry_p) 185 | with new_archive_read_disk(path) as read_p: 186 | while True: 187 | r = read_next_header2(read_p, entry_p) 188 | if r == ARCHIVE_EOF: 189 | break 190 | entry.pathname = store_path 191 | read_disk_descend(read_p) 192 | write_header(write_p, entry_p) 193 | try: 194 | with open(entry_sourcepath(entry_p), "rb") as f: 195 | while True: 196 | data = f.read(block_size) 197 | if not data: 198 | break 199 | write_data(write_p, data, len(data)) 200 | except IOError as e: 201 | if e.errno != 21: 202 | raise # pragma: no cover 203 | write_finish_entry(write_p) 204 | entry_clear(entry_p) 205 | if os.path.isdir(path): 206 | break 207 | -------------------------------------------------------------------------------- /requirements-dev.txt: -------------------------------------------------------------------------------- 1 | black 2 | flake8 3 | flake8-bugbear 4 | isort 5 | pylint 6 | pytest 7 | -------------------------------------------------------------------------------- /setup.cfg: -------------------------------------------------------------------------------- 1 | [flake8] 2 | extend-ignore = E203, E501 3 | max-line-length = 80 4 | max-complexity = 18 5 | select = B9 6 | 7 | [isort] 8 | multi_line_output = 3 9 | include_trailing_comma = True 10 | force_grid_wrap = 0 11 | use_parentheses = True 12 | ensure_newline_before_comments = True 13 | line_length = 88 14 | 15 | [pylint] 16 | disable = C, R, W0511, W1203 17 | max-line-length = 88 -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | from opendrop import __version__ 2 | from codecs import open 3 | from os.path import abspath, dirname, join 4 | from setuptools import find_packages, setup 5 | 6 | this_dir = abspath(dirname(__file__)) 7 | with open(join(this_dir, "README.md"), encoding="utf-8") as file: 8 | long_description = file.read() 9 | 10 | setup( 11 | name="opendrop", 12 | version=__version__, 13 | python_requires=">=3.6", 14 | description="An open Apple AirDrop implementation", 15 | long_description=long_description, 16 | long_description_content_type="text/markdown", 17 | url="https://owlink.org", 18 | project_urls={ 19 | "Source": "https://github.com/seemoo-lab/opendrop", 20 | "Research Paper": "https://usenix.org/conference/usenixsecurity19/presentation/stute", 21 | }, 22 | author="The Open Wireless Link Project", 23 | author_email="mstute@seemoo.tu-darmstadt.de", 24 | classifiers=[ 25 | "License :: OSI Approved :: GNU General Public License v3 (GPLv3)", 26 | "Operating System :: MacOS", 27 | "Operating System :: POSIX :: Linux", 28 | "Natural Language :: English", 29 | "Programming Language :: Python :: 3", 30 | "Programming Language :: Python :: 3.6", 31 | "Programming Language :: Python :: 3.7", 32 | "Programming Language :: Python :: 3.8", 33 | "Programming Language :: Python :: 3.9", 34 | ], 35 | keywords="cli", 36 | packages=find_packages(exclude=["docs"]), 37 | package_data={"opendrop": ["certs/*.pem"]}, 38 | install_requires=[ 39 | "Pillow", 40 | "fleep", 41 | "ifaddr", 42 | "libarchive-c", 43 | "requests", 44 | "requests_toolbelt", 45 | "zeroconf>=0.24.2", 46 | ], 47 | entry_points={ 48 | "console_scripts": [ 49 | "opendrop=opendrop.cli:main", 50 | ], 51 | }, 52 | ) 53 | -------------------------------------------------------------------------------- /tests/test_client.py: -------------------------------------------------------------------------------- 1 | from opendrop.client import AirDropBrowser 2 | from opendrop.config import AirDropConfig 3 | 4 | 5 | def get_loopback(): 6 | import ifaddr 7 | 8 | for adapter in ifaddr.get_adapters(): 9 | if adapter.name.startswith("lo"): 10 | return adapter.name 11 | return None 12 | 13 | 14 | def test_browser_setup(): 15 | loopback = get_loopback() 16 | assert loopback is not None, "Could not find loopback interface" 17 | config = AirDropConfig(interface=loopback) 18 | browser = AirDropBrowser(config) 19 | browser.start() 20 | browser.stop() 21 | -------------------------------------------------------------------------------- /tests/test_server.py: -------------------------------------------------------------------------------- 1 | from opendrop.server import AirDropServer 2 | from opendrop.config import AirDropConfig 3 | 4 | 5 | def get_loopback(): 6 | import ifaddr 7 | 8 | for adapter in ifaddr.get_adapters(): 9 | if adapter.name.startswith("lo"): 10 | return adapter.name 11 | return None 12 | 13 | 14 | def test_server_setup(): 15 | loopback = get_loopback() 16 | assert loopback is not None, "Could not find loopback interface" 17 | config = AirDropConfig(interface=loopback) 18 | server = AirDropServer(config) 19 | server.start_service() 20 | # TODO currently no good way of stopping the server 21 | # server.start_server() 22 | --------------------------------------------------------------------------------