64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
"""Onionr - Private P2P Communication.
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Fanout blocks to Onionr TorGossip peer
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"""
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import os
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import sys
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from typing import TYPE_CHECKING
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from random import SystemRandom
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from time import sleep
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if TYPE_CHECKING:
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from socket import socket
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import logger
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sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)))
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from commands import GossipCommands
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from .commandsender import command_sender
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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 fanout_to_peers(
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socket_pool: dict,
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block_hash: bytes,
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block_data: 'KastenPacked',
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fanout_count: int = 4):
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peers = list(socket_pool)
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SystemRandom().shuffle(peers)
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sent_counter = 0
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fanout_count = min(fanout_count, len(peers))
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fanout_count = max(1, fanout_count)
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while sent_counter < fanout_count:
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try:
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peer = peers.pop()
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except IndexError:
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sleep(2)
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command_sender(peer, GossipCommands.CHECK_HAS_BLOCK, block_hash)
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if peer.recv(1) == b'\x01':
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continue
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command_sender(peer, GossipCommands.PUT_BLOCK, block_hash, block_data)
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if peer.recv(1) != b'\x01':
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logger.warn(f"Failed to fanout {block_hash} to {peer}", terminal=True)
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continue
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sent_counter += 1
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