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62 lines
1.5 KiB
Python
62 lines
1.5 KiB
Python
"""
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This module holds the abstract `Connection` class.
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"""
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import abc
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from datetime import timedelta
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class Connection(abc.ABC):
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"""
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Represents an abstract connection for Telegram.
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Subclasses should implement the actual protocol
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being used when encoding/decoding messages.
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"""
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def __init__(self, proxy=None, timeout=timedelta(seconds=5)):
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"""
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Initializes a new connection.
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:param proxy: whether to use a proxy or not.
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:param timeout: timeout to be used for all operations.
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"""
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self._proxy = proxy
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self._timeout = timeout
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@abc.abstractmethod
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def connect(self, ip, port):
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raise NotImplementedError
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@abc.abstractmethod
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def get_timeout(self):
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"""Returns the timeout used by the connection."""
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raise NotImplementedError
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@abc.abstractmethod
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def is_connected(self):
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"""
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Determines whether the connection is alive or not.
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:return: true if it's connected.
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"""
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raise NotImplementedError
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@abc.abstractmethod
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def close(self):
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"""Closes the connection."""
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raise NotImplementedError
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@abc.abstractmethod
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def clone(self):
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"""Creates a copy of this Connection."""
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raise NotImplementedError
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@abc.abstractmethod
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def recv(self):
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"""Receives and unpacks a message"""
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raise NotImplementedError
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@abc.abstractmethod
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def send(self, message):
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"""Encapsulates and sends the given message"""
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raise NotImplementedError
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