Onionr/onionr/onionrpeers.py

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'''
Onionr - P2P Microblogging Platform & Social network.
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This file contains both the PeerProfiles class for network profiling of Onionr nodes
'''
'''
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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'''
import core, config, logger
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class PeerProfiles:
'''
PeerProfiles
'''
def __init__(self, address, coreInst):
self.address = address # node address
self.score = None
self.friendSigCount = 0
self.success = 0
self.failure = 0
if not isinstance(coreInst, core.Core):
raise TypeError("coreInst must be a type of core.Core")
self.coreInst = coreInst
assert isinstance(self.coreInst, core.Core)
self.loadScore()
return
def loadScore(self):
'''Load the node's score from the database'''
try:
self.success = int(self.coreInst.getAddressInfo(self.address, 'success'))
except (TypeError, ValueError) as e:
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self.success = 0
self.score = self.success
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def saveScore(self):
'''Save the node's score to the database'''
self.coreInst.setAddressInfo(self.address, 'success', self.score)
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return
def addScore(self, toAdd):
'''Add to the peer's score (can add negative)'''
self.score += toAdd
self.saveScore()
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def getScoreSortedPeerList(coreInst):
if not type(coreInst is core.Core):
raise TypeError('coreInst must be instance of core.Core')
peerList = coreInst.listAdders()
peerScores = {}
for address in peerList:
# Load peer's profiles into a list
profile = PeerProfiles(address, coreInst)
peerScores[address] = profile.score
# Sort peers by their score, greatest to least
peerList = sorted(peerScores, key=peerScores.get, reverse=True)
return peerList
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def peerCleanup(coreInst):
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'''Removes peers who have been offline too long or score too low'''
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if not type(coreInst is core.Core):
raise TypeError('coreInst must be instance of core.Core')
logger.info('Cleaning peers...')
config.reload()
minScore = int(config.get('peers.minimumScore'))
maxPeers = int(config.get('peers.maxStoredPeers'))
adders = getScoreSortedPeerList(coreInst)
adders.reverse()
for address in adders:
# Remove peers that go below the negative score
if PeerProfiles(address, coreInst).score < minScore:
coreInst.removeAddress(address)
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coreInst._blacklist.addToDB(address, dataType=1, expire=300)
logger.warn('Removed address ' + address + '.')
# Unban probably not malicious peers TODO improve
coreInst._blacklist.deleteExpired(dataType=1)