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64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
import json
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import threading
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from .event import Event
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from .filter import Filters
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from .message_pool import MessagePool
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from .message_type import ClientMessageType
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from .relay import Relay, RelayPolicy
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class RelayException(Exception):
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pass
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class RelayManager:
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def __init__(self) -> None:
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self.relays: dict[str, Relay] = {}
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self.message_pool = MessagePool()
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def add_relay(self, url: str, read: bool=True, write: bool=True, subscriptions={}):
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policy = RelayPolicy(read, write)
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relay = Relay(url, policy, self.message_pool, subscriptions)
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self.relays[url] = relay
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def remove_relay(self, url: str):
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self.relays.pop(url)
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def add_subscription(self, id: str, filters: Filters):
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for relay in self.relays.values():
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relay.add_subscription(id, filters)
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def close_subscription(self, id: str):
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for relay in self.relays.values():
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relay.close_subscription(id)
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def open_connections(self, ssl_options: dict=None, proxy: dict=None):
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for relay in self.relays.values():
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threading.Thread(
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target=relay.connect,
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args=(ssl_options, proxy),
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name=f"{relay.url}-thread"
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).start()
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def close_connections(self):
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for relay in self.relays.values():
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relay.close()
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def publish_message(self, message: str):
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for relay in self.relays.values():
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if relay.policy.should_write:
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relay.publish(message)
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def publish_event(self, event: Event):
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""" Verifies that the Event is publishable before submitting it to relays """
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if event.signature is None:
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raise RelayException(f"Could not publish {event.id}: must be signed")
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if not event.verify():
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raise RelayException(f"Could not publish {event.id}: failed to verify signature {event.signature}")
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self.publish_message(event.to_message())
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