88 lines
3.1 KiB
Python
88 lines
3.1 KiB
Python
###############################################################################
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#
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# The MIT License (MIT)
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#
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# Copyright (c) typedef int GmbH
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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###############################################################################
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import os
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import shutil
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from twisted.internet.defer import Deferred
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from twisted.internet.interfaces import IReactorProcess
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from twisted.internet.utils import getProcessOutput
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__all__ = ('get_input_from_dialog',)
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def get_input_from_dialog(reactor: IReactorProcess, title: str = 'Unlock key',
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text: str = 'Please enter passphrase to unlock key',
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hide_text: bool = True) -> Deferred:
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"""
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Show a Gnome/GTK desktop dialog asking for a passphrase.
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This is using zenity, the GNOME port of dialog which allows you to display dialog boxes
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from the commandline and shell scripts. To install (on Linux):
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.. code:: console
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sudo apt update
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sudo install zenity
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See also:
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- https://gitlab.gnome.org/GNOME/zenity
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- https://wiki.ubuntuusers.de/Zenity/
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- https://bash.cyberciti.biz/guide/Zenity:_Shell_Scripting_with_Gnome
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:param reactor: Twisted reactor to use.
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:param title: Dialog window title to show.
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:param text: Dialog text to show above text entry field.
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:param hide_text: Hide entry field text.
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:return: A deferred that resolves with the string the user entered.
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"""
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exe = shutil.which('zenity')
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if not exe:
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raise RuntimeError('get_input_from_dialog(): could not find zenity (install with "apt install zenity")')
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args = ['--entry', '--title', title, '--text', text]
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if hide_text:
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args.append('--hide-text')
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d = getProcessOutput(exe, args=args, env=os.environ, reactor=reactor)
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def _consume(output):
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passphrase = output.decode('utf8').strip()
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return passphrase
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d.addCallback(_consume)
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return d
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if __name__ == "__main__":
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from twisted.internet.task import react
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async def main(reactor):
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passphrase = await get_input_from_dialog(reactor)
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print(type(passphrase), len(passphrase), '"{}"'.format(passphrase))
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react(main)
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