mirror of
https://github.com/Yubico/yubioath-flutter.git
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204 lines
6.5 KiB
Python
204 lines
6.5 KiB
Python
# Copyright (c) 2021 Yubico AB
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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from .base import RpcNode, action, child
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from yubikit.core import NotSupportedError
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from yubikit.yubiotp import (
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YubiOtpSession,
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SLOT,
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UpdateConfiguration,
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HmacSha1SlotConfiguration,
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HotpSlotConfiguration,
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StaticPasswordSlotConfiguration,
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YubiOtpSlotConfiguration,
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StaticTicketSlotConfiguration,
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)
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class YubiOtpNode(RpcNode):
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def __init__(self, connection):
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super().__init__()
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self.session = YubiOtpSession(connection)
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def get_data(self):
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state = self.session.get_config_state()
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data = {}
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try:
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data.update(
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slot1_configured=state.is_configured(SLOT.ONE),
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slot2_configured=state.is_configured(SLOT.TWO),
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)
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data.update(
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slot1_touch_triggered=state.is_touch_triggered(SLOT.ONE),
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slot2_touch_triggered=state.is_touch_triggered(SLOT.TWO),
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)
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data.update(
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is_led_inverted=state.is_led_inverted(),
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)
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except NotSupportedError:
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pass
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return data
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@action
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def swap(self, params, event, signal):
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self.session.swap_slots()
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return dict()
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@child
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def one(self):
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return SlotNode(self.session, SLOT.ONE)
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@child
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def two(self):
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return SlotNode(self.session, SLOT.TWO)
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_CONFIG_TYPES = dict(
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hmac_sha1=HmacSha1SlotConfiguration,
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hotp=HotpSlotConfiguration,
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static_password=StaticPasswordSlotConfiguration,
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yubiotp=YubiOtpSlotConfiguration,
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static_ticket=StaticTicketSlotConfiguration,
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)
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class SlotNode(RpcNode):
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def __init__(self, session, slot):
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super().__init__()
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self.session = session
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self.slot = slot
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self._state = self.session.get_config_state()
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def get_data(self):
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self._state = self.session.get_config_state()
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data = {}
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try:
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data.update(is_configured=self._state.is_configured(self.slot))
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data.update(is_touch_triggered=self._state.is_touch_triggered(self.slot))
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except NotSupportedError:
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pass
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return data
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def _maybe_configured(self, slot):
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try:
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return self._state.is_configured(slot)
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except NotSupportedError:
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return True
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def _can_calculate(self, slot):
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try:
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if not self._state.is_configured(slot):
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return False
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try:
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if self._state.is_touch_triggered(slot):
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return False
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except NotSupportedError:
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pass
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return True
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except NotSupportedError:
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return False
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@action(condition=lambda self: self._maybe_configured(self.slot))
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def delete(self, params, event, signal):
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self.session.delete_slot(self.slot, params.pop("cur_acc_code", None))
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@action(condition=lambda self: self._can_calculate(self.slot))
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def calculate(self, params, event, signal):
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challenge = bytes.fromhex(params.pop("challenge"))
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response = self.session.calculate_hmac_sha1(self.slot, challenge, event)
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return dict(response=response)
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def _apply_config(self, config, params):
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for option in (
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"serial_api_visible",
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"serial_usb_visible",
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"allow_update",
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"dormant",
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"invert_led",
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"protect_slot2",
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"require_touch",
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"lt64",
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"append_cr",
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"use_numeric",
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"fast_trigger",
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"digits8",
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"imf",
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"send_reference",
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"short_ticket",
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"manual_update",
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):
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if option in params:
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getattr(config, option)(params.pop(option))
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for option in ("tabs", "delay", "pacing", "strong_password"):
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if option in params:
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getattr(config, option)(*params.pop(option))
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if "token_id" in params:
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token_id, *args = params.pop("token_id")
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config.token_id(bytes.fromhex(token_id), *args)
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return config
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@action
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def put(self, params, event, signal):
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config = None
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for key in _CONFIG_TYPES:
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if key in params:
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if config is not None:
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raise ValueError("Only one configuration type can be provided.")
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config = _CONFIG_TYPES[key](
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*(bytes.fromhex(arg) for arg in params.pop(key))
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)
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if config is None:
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raise ValueError("No supported configuration type provided.")
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self._apply_config(config, params)
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self.session.put_configuration(
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self.slot,
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config,
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params.pop("acc_code", None),
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params.pop("cur_acc_code", None),
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)
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return dict()
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@action(
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condition=lambda self: self._state.version >= (2, 2, 0)
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and self._maybe_configured(self.slot)
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)
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def update(self, params, event, signal):
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config = UpdateConfiguration()
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self._apply_config(config, params)
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self.session.update_configuration(
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self.slot,
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config,
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params.pop("acc_code", None),
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params.pop("cur_acc_code", None),
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)
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return dict()
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