Onionr/src/communicatorutils/cooldownpeer.py

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"""Onionr - Private P2P Communication.
Select random online peer in a communicator instance and have them "cool down"
"""
from typing import TYPE_CHECKING
from onionrutils import epoch
from communicator import onlinepeers
if TYPE_CHECKING:
from deadsimplekv import DeadSimpleKV
"""
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
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def cooldown_peer(shared_state):
"""Randomly add an online peer to cooldown, so we can connect a new one."""
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kv: "DeadSimpleKV" = shared_state.get_by_string("DeadSimpleKV")
config = shared_state.get_by_string("OnionrCommunicatorDaemon").config
online_peer_amount = len(kv.get('onlinePeers'))
minTime = 300
cooldown_time = 600
to_cool = ''
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tempConnectTimes = dict(kv.get('connectTimes'))
# Remove peers from cooldown that have been there long enough
tempCooldown = dict(kv.get('cooldownPeer'))
for peer in tempCooldown:
if (epoch.get_epoch() - tempCooldown[peer]) >= cooldown_time:
del kv.get('cooldownPeer')[peer]
# Cool down a peer, if we have max connections alive for long enough
if online_peer_amount >= config.get('peers.max_connect', 10, save=True):
finding = True
while finding:
try:
to_cool = min(tempConnectTimes, key=tempConnectTimes.get)
if (epoch.get_epoch() - tempConnectTimes[to_cool]) < minTime:
del tempConnectTimes[to_cool]
else:
finding = False
except ValueError:
break
else:
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onlinepeers.remove_online_peer(kv, to_cool)
kv.get('cooldownPeer')[to_cool] = epoch.get_epoch()