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from typing import Dict, Optional, Any, TYPE_CHECKING, List
from ..menu.abstract_menu import Selector, AbstractSubMenu
from ..menu.menu import MenuSelectionType
from ..menu.table_selection_menu import TableMenu
from ..models.disk_encryption import EncryptionType, DiskEncryption
from ..user_interaction.partitioning_conf import current_partition_layout
from ..user_interaction.utils import get_password
from ..menu import Menu
from ..general import secret
from ..hsm.fido import Fido2Device, Fido2
if TYPE_CHECKING:
_: Any
class DiskEncryptionMenu(AbstractSubMenu):
def __init__(self, data_store: Dict[str, Any], preset: Optional[DiskEncryption], disk_layouts: Dict[str, Any]):
if preset:
self._preset = preset
else:
self._preset = DiskEncryption()
self._disk_layouts = disk_layouts
super().__init__(data_store=data_store)
def _setup_selection_menu_options(self):
self._menu_options['encryption_password'] = \
Selector(
_('Encryption password'),
lambda x: select_encrypted_password(),
display_func=lambda x: secret(x) if x else '',
default=self._preset.encryption_password,
enabled=True
)
self._menu_options['encryption_type'] = \
Selector(
_('Encryption type'),
func=lambda preset: select_encryption_type(preset),
display_func=lambda x: EncryptionType.type_to_text(x) if x else None,
dependencies=['encryption_password'],
default=self._preset.encryption_type,
enabled=True
)
self._menu_options['partitions'] = \
Selector(
_('Partitions'),
func=lambda preset: select_partitions_to_encrypt(self._disk_layouts, preset),
display_func=lambda x: f'{sum([len(y) for y in x.values()])} {_("Partitions")}' if x else None,
dependencies=['encryption_password'],
default=self._preset.partitions,
preview_func=self._prev_disk_layouts,
enabled=True
)
self._menu_options['HSM'] = \
Selector(
description=_('Use HSM to unlock encrypted drive'),
func=lambda preset: select_hsm(preset),
display_func=lambda x: self._display_hsm(x),
dependencies=['encryption_password'],
default=self._preset.hsm_device,
enabled=True
)
def run(self, allow_reset: bool = True) -> Optional[DiskEncryption]:
super().run(allow_reset=allow_reset)
if self._data_store.get('encryption_password', None):
return DiskEncryption(
encryption_password=self._data_store.get('encryption_password', None),
encryption_type=self._data_store['encryption_type'],
partitions=self._data_store.get('partitions', None),
hsm_device=self._data_store.get('HSM', None)
)
return None
def _display_hsm(self, device: Optional[Fido2Device]) -> Optional[str]:
if device:
return device.manufacturer
if not Fido2.get_fido2_devices():
return str(_('No HSM devices available'))
return None
def _prev_disk_layouts(self) -> Optional[str]:
selector = self._menu_options['partitions']
if selector.has_selection():
partitions: Dict[str, Any] = selector.current_selection
all_partitions = []
for parts in partitions.values():
all_partitions += parts
output = str(_('Partitions to be encrypted')) + '\n'
output += current_partition_layout(all_partitions, with_title=False)
return output.rstrip()
return None
def select_encryption_type(preset: EncryptionType) -> Optional[EncryptionType]:
title = str(_('Select disk encryption option'))
options = [
# _type_to_text(EncryptionType.FullDiskEncryption),
EncryptionType.type_to_text(EncryptionType.Partition)
]
preset_value = EncryptionType.type_to_text(preset)
choice = Menu(title, options, preset_values=preset_value).run()
match choice.type_:
case MenuSelectionType.Reset: return None
case MenuSelectionType.Skip: return preset
case MenuSelectionType.Selection: return EncryptionType.text_to_type(choice.value) # type: ignore
def select_encrypted_password() -> Optional[str]:
if passwd := get_password(prompt=str(_('Enter disk encryption password (leave blank for no encryption): '))):
return passwd
return None
def select_hsm(preset: Optional[Fido2Device] = None) -> Optional[Fido2Device]:
title = _('Select a FIDO2 device to use for HSM')
fido_devices = Fido2.get_fido2_devices()
if fido_devices:
choice = TableMenu(title, data=fido_devices).run()
match choice.type_:
case MenuSelectionType.Reset:
return None
case MenuSelectionType.Skip:
return preset
case MenuSelectionType.Selection:
return choice.value # type: ignore
return None
def select_partitions_to_encrypt(disk_layouts: Dict[str, Any], preset: Dict[str, Any]) -> Dict[str, Any]:
# If no partitions was marked as encrypted, but a password was supplied and we have some disks to format..
# Then we need to identify which partitions to encrypt. This will default to / (root).
all_partitions = []
for blockdevice in disk_layouts.values():
if partitions := blockdevice.get('partitions'):
partitions = [p for p in partitions if p['mountpoint'] != '/boot']
all_partitions += partitions
if all_partitions:
title = str(_('Select which partitions to encrypt'))
partition_table = current_partition_layout(all_partitions, with_title=False).strip()
choice = TableMenu(
title,
table_data=(all_partitions, partition_table),
multi=True
).run()
match choice.type_:
case MenuSelectionType.Reset:
return {}
case MenuSelectionType.Skip:
return preset
case MenuSelectionType.Selection:
selections: List[Any] = choice.value # type: ignore
partitions = {}
for path, device in disk_layouts.items():
for part in selections:
if part in device.get('partitions', []):
partitions.setdefault(path, []).append(part)
return partitions
return {}
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