forked from LBRYCommunity/lbry-sdk
35 lines
No EOL
1.1 KiB
Python
35 lines
No EOL
1.1 KiB
Python
|
|
from collections import Counter
|
|
import datetime
|
|
|
|
|
|
class HashWatcher():
|
|
def __init__(self, ttl=600):
|
|
self.ttl = 600
|
|
self.hashes = []
|
|
self.next_tick = None
|
|
|
|
def tick(self):
|
|
|
|
from twisted.internet import reactor
|
|
|
|
self._remove_old_hashes()
|
|
self.next_tick = reactor.callLater(10, self.tick)
|
|
|
|
def stop(self):
|
|
if self.next_tick is not None:
|
|
self.next_tick.cancel()
|
|
self.next_tick = None
|
|
|
|
def add_requested_hash(self, hashsum, from_ip):
|
|
matching_hashes = [h for h in self.hashes if h[0] == hashsum and h[2] == from_ip]
|
|
if len(matching_hashes) == 0:
|
|
self.hashes.append((hashsum, datetime.datetime.now(), from_ip))
|
|
|
|
def most_popular_hashes(self, num_to_return=10):
|
|
hash_counter = Counter([h[0] for h in self.hashes])
|
|
return hash_counter.most_common(num_to_return)
|
|
|
|
def _remove_old_hashes(self):
|
|
remove_time = datetime.datetime.now() - datetime.timedelta(minutes=10)
|
|
self.hashes = [h for h in self.hashes if h[1] < remove_time] |