Onionr/src/communicatorutils/lookupadders.py

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"""Onionr - Private P2P Communication.
Lookup new peer transport addresses using the communicator
"""
from typing import TYPE_CHECKING
import logger
from onionrutils import stringvalidators
from communicator import peeraction, onlinepeers
from utils import gettransports
import onionrexceptions
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 lookup_new_peer_transports_with_communicator(shared_state):
logger.info('Looking up new addresses...')
tryAmount = 1
newPeers = []
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transports = gettransports.get()
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kv: "DeadSimpleKV" = shared_state.get_by_string("DeadSimpleKV")
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for i in range(tryAmount):
# Download new peer address list from random online peers
if len(newPeers) > 10000:
# Don't get new peers if we have too many queued up
break
try:
peer = onlinepeers.pick_online_peer(kv)
newAdders = peeraction.peer_action(shared_state, peer, action='pex')
except onionrexceptions.OnlinePeerNeeded:
continue
try:
newPeers = newAdders.split(',')
except AttributeError:
pass
else:
# Validate new peers are good format and not already in queue
invalid = []
for x in newPeers:
x = x.strip()
if not stringvalidators.validate_transport(x) \
or x in kv.get('newPeers') or x in transports:
# avoid adding if its our address
invalid.append(x)
for x in invalid:
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try:
newPeers.remove(x)
except ValueError:
pass
kv.get('newPeers').extend(newPeers)