120 lines
4.4 KiB
Python
120 lines
4.4 KiB
Python
# -*- coding: utf-8 -*-
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import base64
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import logging
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import pickle
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import queue
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import random
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import threading
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import time
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from connection import Connection
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from i2p.dialer import I2PDialer
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import shared
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class Manager(threading.Thread):
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def __init__(self):
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super().__init__(name='Manager')
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self.q = queue.Queue()
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self.last_cleaned_objects = time.time()
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self.last_cleaned_connections = time.time()
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self.last_pickled_objects = time.time()
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self.last_pickled_nodes = time.time()
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def run(self):
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while True:
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time.sleep(0.8)
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now = time.time()
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if now - self.last_cleaned_objects > 90:
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self.clean_objects()
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self.last_cleaned_objects = now
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if now - self.last_cleaned_connections > 2:
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self.clean_connections()
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self.last_cleaned_connections = now
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if now - self.last_pickled_objects > 100:
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self.pickle_objects()
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self.last_pickled_objects = now
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if now - self.last_pickled_nodes > 60:
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self.pickle_nodes()
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self.last_pickled_nodes = now
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if shared.shutting_down:
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logging.debug('Shutting down Manager')
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break
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@staticmethod
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def clean_objects():
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for vector in set(shared.objects):
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if shared.objects[vector].is_expired():
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with shared.objects_lock:
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del shared.objects[vector]
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logging.debug('Deleted expired object: {}'.format(base64.b16encode(vector).decode()))
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@staticmethod
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def clean_connections():
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hosts = set()
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outgoing_connections = 0
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for c in shared.connections.copy():
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if not c.is_alive() or c.status == 'disconnected':
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with shared.connections_lock:
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shared.connections.remove(c)
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else:
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hosts.add(c.host)
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if not c.server:
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outgoing_connections += 1
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to_connect = set()
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if shared.trusted_peer:
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to_connect.add(shared.trusted_peer)
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if outgoing_connections < shared.outgoing_connections and shared.send_outgoing_connections and not shared.trusted_peer:
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if len(shared.unchecked_node_pool) > 16:
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to_connect.update(random.sample(shared.unchecked_node_pool, 16))
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else:
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to_connect.update(shared.unchecked_node_pool)
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shared.unchecked_node_pool.difference_update(to_connect)
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if len(shared.node_pool) > 8:
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to_connect.update(random.sample(shared.node_pool, 8))
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else:
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to_connect.update(shared.node_pool)
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for addr in to_connect:
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if addr[0] in hosts:
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continue
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if addr[1] == 'i2p' and shared.i2p_enabled:
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if shared.i2p_session_nick:
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c = I2PDialer(addr[0], shared.i2p_session_nick, shared.i2p_sam_host, shared.i2p_sam_port).get_connection()
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c.start()
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else:
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logging.debug('We were going to connect to an I2P peer but our tunnels are not ready')
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continue
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else:
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c = Connection(addr[0], addr[1])
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c.start()
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hosts.add(c.host)
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with shared.connections_lock:
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shared.connections.add(c)
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shared.hosts = hosts
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@staticmethod
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def pickle_objects():
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try:
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with open(shared.data_directory + 'objects.pickle', mode='bw') as file:
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with shared.objects_lock:
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pickle.dump(shared.objects, file, protocol=3)
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logging.debug('Saved objects')
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except Exception as e:
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logging.warning('Error while saving objects')
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logging.warning(e)
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@staticmethod
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def pickle_nodes():
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if len(shared.node_pool) > 10000:
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shared.node_pool = set(random.sample(shared.node_pool, 10000))
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if len(shared.unchecked_node_pool) > 1000:
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shared.unchecked_node_pool = set(random.sample(shared.unchecked_node_pool, 1000))
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try:
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with open(shared.data_directory + 'nodes.pickle', mode='bw') as file:
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pickle.dump(shared.node_pool, file, protocol=3)
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logging.debug('Saved nodes')
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except Exception as e:
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logging.warning('Error while saving nodes')
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logging.warning(e)
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