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# SPDX-License-Identifier: AGPL-3.0-or-later
"""FreedomBox app for configuring Shadowsocks Server."""
from django import forms
from django.utils.translation import gettext_lazy as _
from plinth.utils import format_lazy
METHODS = [('chacha20-ietf-poly1305',
format_lazy('chacha20-ietf-poly1305 ({})', _('Recommended'))),
('aes-256-gcm', format_lazy('aes-256-gcm ({})', _('Recommended'))),
('aes-192-gcm', 'aes-192-gcm'), ('aes-128-gcm', 'aes-128-gcm'),
('aes-128-ctr', 'aes-128-ctr'), ('aes-192-ctr', 'aes-192-ctr'),
('aes-256-ctr', 'aes-256-ctr'), ('aes-128-cfb', 'aes-128-cfb'),
('aes-192-cfb', 'aes-192-cfb'), ('aes-256-cfb', 'aes-256-cfb'),
('camellia-128-cfb', 'camellia-128-cfb'),
('camellia-192-cfb', 'camellia-192-cfb'),
('camellia-256-cfb', 'camellia-256-cfb'),
('chacha20-ietf', 'chacha20-ietf')]
class TrimmedCharField(forms.CharField):
"""Trim the contents of a CharField."""
def clean(self, value):
"""Clean and validate the field value."""
if value:
value = value.strip()
return super().clean(value)
class ShadowsocksServerForm(forms.Form):
"""Shadowsocks Server configuration form."""
password = forms.CharField(
label=_('Password'),
help_text=_('Password used to encrypt data. Clients must use the '
'same password.'))
method = forms.ChoiceField(
label=_('Method'), choices=METHODS,
help_text=_('Encryption method. Clients must use the same setting.'))
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