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105 lines
2.6 KiB
Python
105 lines
2.6 KiB
Python
import logging
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import asyncio
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from kademlia.network import Server
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from kademlia.storage import *
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import shelve
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from collections import OrderedDict
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import pickle,os
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NODES_PRIME = [("128.232.229.63",8468), ("68.66.241.111",8468)]
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class HalfForgetfulStorage(ForgetfulStorage):
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def __init__(self, ttl=604800):
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"""
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By default, max age is a week.
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"""
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self.fn='sto.dat'
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if not os.path.exists(self.fn):
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self.data={}
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else:
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with open(self.fn,'rb') as f:
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self.data=pickle.load(f)
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print('loaded:',self.data)
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#self.data = pickle.open('sto.dat','rb') #,writeback=True)
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# self.data = self.store.get('OrderedDict',OrderedDict())
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self.ttl = ttl
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def __setitem__(self, key, value):
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self.data[key] = (time.monotonic(), value)
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self.write()
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def set(key,value):
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self[key]=value
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def write(self):
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with open(self.fn,'wb') as f:
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pickle.dump(self.data, f)
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def get(self, key, default=None):
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# self.cull()
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print('looking for key: ', key)
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if key in self.data:
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print('found it!')
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return self[key]
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return default
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def __getitem__(self, key):
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return self.data[key][1]
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def start_first_node():
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handler = logging.StreamHandler()
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formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
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handler.setFormatter(formatter)
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log = logging.getLogger('kademlia')
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log.addHandler(handler)
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log.setLevel(logging.DEBUG)
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loop = asyncio.get_event_loop()
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loop.set_debug(True)
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shelf = HalfForgetfulStorage()
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server = Server(storage=shelf)
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loop.run_until_complete(server.listen(8468))
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try:
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loop.run_forever()
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except KeyboardInterrupt:
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pass
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finally:
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server.stop()
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loop.close()
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def connect():
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# host="0.0.0.0"
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async def run():
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# Create a node and start listening on port 5678
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node = Server(storage=HalfForgetfulStorage())
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await node.listen(8469)
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# Bootstrap the node by connecting to other known nodes, in this case
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# replace 123.123.123.123 with the IP of another node and optionally
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# give as many ip/port combos as you can for other nodes.
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await node.bootstrap(NODES_PRIME)
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# set a value for the key "my-key" on the network
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#await node.set("my-key2", "my awesome value")
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# get the value associated with "my-key" from the network
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#result = await node.get("my-key2")
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# print(result)
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return node
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return asyncio.run(run())
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