mirror of
https://github.com/trezor/trezor-firmware.git
synced 2025-02-07 13:12:41 +00:00
86 lines
2.7 KiB
Python
86 lines
2.7 KiB
Python
# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2019 SatoshiLabs and contributors
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3
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# as published by the Free Software Foundation.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the License along with this library.
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# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
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import functools
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import sys
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import click
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from .. import exceptions
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from ..client import TrezorClient
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from ..transport import get_transport
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from ..ui import ClickUI
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class ChoiceType(click.Choice):
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def __init__(self, typemap):
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super().__init__(typemap.keys())
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self.typemap = typemap
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def convert(self, value, param, ctx):
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value = super().convert(value, param, ctx)
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return self.typemap[value]
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class TrezorConnection:
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def __init__(self, path, session_id, passphrase_on_host):
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self.path = path
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self.session_id = session_id
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self.passphrase_on_host = passphrase_on_host
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def get_transport(self):
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try:
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# look for transport without prefix search
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return get_transport(self.path, prefix_search=False)
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except Exception:
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# most likely not found. try again below.
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pass
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# look for transport with prefix search
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# if this fails, we want the exception to bubble up to the caller
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return get_transport(self.path, prefix_search=True)
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def get_ui(self):
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return ClickUI(passphrase_on_host=self.passphrase_on_host)
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def get_client(self):
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transport = self.get_transport()
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ui = self.get_ui()
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return TrezorClient(transport, ui=ui, session_id=self.session_id)
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def with_client(func):
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@click.pass_obj
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@functools.wraps(func)
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def trezorctl_command_with_client(obj, *args, **kwargs):
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try:
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client = obj.get_client()
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except Exception:
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click.echo("Failed to find a Trezor device.")
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if obj.path is not None:
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click.echo("Using path: {}".format(obj.path))
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sys.exit(1)
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try:
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return func(client, *args, **kwargs)
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except exceptions.Cancelled:
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click.echo("Action was cancelled.")
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sys.exit(1)
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except exceptions.TrezorException as e:
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raise click.ClickException(str(e)) from e
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return trezorctl_command_with_client
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