49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
"""Onionr - Private P2P Communication.
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Detect if onion service has been online recently
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"""
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from typing import TYPE_CHECKING, Union
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from base64 import b32encode
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if TYPE_CHECKING:
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from stem.control import Controller
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from stem import DescriptorUnavailable, ProtocolError
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"""
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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def service_online_recently(
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tor_controller: 'Controller',
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onion_address: Union[str, bytes]) -> bool:
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"""Detect if a .onion service is/recently online by getting descriptor
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Does not detect if it is an Onionr node or actually has any TCP service
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"""
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if isinstance(onion_address, bytes):
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# If address is "compressed"
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# (raw bytes + no onion extension), restore it to b32 form
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onion_address = b32encode(
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onion_address).lower().decode('utf-8') + '.onion'
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try:
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tor_controller.get_hidden_service_descriptor(onion_address)
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except DescriptorUnavailable:
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return False
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except ProtocolError:
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raise ProtocolError(
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onion_address + " is likely malformed. Or stem/tor malfunctioned")
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return True
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