102 lines
2.7 KiB
Python
102 lines
2.7 KiB
Python
"""Onionr - Private P2P Communication.
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Handle commands for the torgossip server
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"""
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import traceback
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import base64
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import blockio
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import logger
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import onionrblocks
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from kasten import Kasten
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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 announce_peer(peers: 'TorGossipPeers', peer_address):
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"""command 8: accept a new peer"""
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try:
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peers.add_peer(peer_address)
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except Exception as _:
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logger.warn("Error accepting announced peer " + base64.b85encode(peer_address).decode('utf-8'), terminal=True)
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logger.warn(traceback.format_exc(), terminal=True)
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return b"0"
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return b"1"
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def peer_exchange(peers: 'TorGossipPeers', num_of_peers: bytes):
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"""command 7: exchange a number of our top performing peers"""
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num_of_peers = int(chr(int.from_bytes(num_of_peers, 'little')))
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peers = peers.get_highest_score_peers(num_of_peers)
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just_addresses = []
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for i in peers:
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just_addresses.append(i[0])
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return b''.join(just_addresses)
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def put_block(safe_db, block):
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#6
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block_hash = block[:64]
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data = block[64:]
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try:
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blockio.store_block(
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Kasten(block_hash, data, onionrblocks.generators.AnonVDFGenerator),
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safe_db)
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except ValueError:
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pass
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except Exception as _: # noqa
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return b"0"
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return b"1"
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def get_block(safe_db, block_hash) -> bytes:
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#5
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try:
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return safe_db.get(block_hash)
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except KeyError:
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return b"0"
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def list_blocks_by_type_and_offset(safe_db, type_and_offset):
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#4
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offset, block_type = type_and_offset.split(b',', 1)
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try:
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offset = int(offset)
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except ValueError:
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return b""
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try:
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return list_blocks_by_type(safe_db, block_type)[offset * 64:]
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except KeyError:
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return b"0"
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def list_blocks_by_type(safe_db, block_type) -> bytes:
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# 3
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block_type = block_type.decode('utf-8')
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try:
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return safe_db.get('bl-' + block_type)
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except KeyError:
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return b"0"
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def handle_check_block(safe_db, block_hash):
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# 2
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if block_hash in blockio.list_all_blocks(safe_db):
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return int(1).to_bytes(1, 'little')
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else:
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return int(2).to_bytes(1, 'little')
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