107 lines
2.7 KiB
Python
107 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
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# Nemubot is a smart and modulable IM bot.
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# Copyright (C) 2012-2014 nemunaire
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import ssl
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import socket
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from server import AbstractServer
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class SocketServer(AbstractServer):
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def __init__(self, host, port, ssl=False):
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AbstractServer.__init__(self)
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self.host = host
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self.port = int(port)
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self.ssl = ssl
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self.socket = None
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self.readbuffer = b''
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def fileno(self):
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return self.socket.fileno() if self.socket else None
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@property
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def connected(self):
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"""Indicator of the connection aliveness"""
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return self.socket is not None
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# Open/close
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def _open(self):
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# Create the socket
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self.socket = socket.socket()
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# Wrap the socket for SSL
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if self.ssl:
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ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
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self.socket = ctx.wrap_socket(self.socket)
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try:
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self.socket.connect((self.host, self.port)) #Connect to server
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self.logger.info("Connected to %s:%d", self.host, self.port)
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except socket.error as e:
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self.socket = None
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self.logger.critical("Unable to connect to %s:%d: %s",
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self.host, self.port, os.strerror(e.errno))
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return False
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return True
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def _close(self):
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self._sending_queue.join()
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if self.connected:
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try:
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self.socket.shutdown(socket.SHUT_RDWR)
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self.socket.close()
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except socket.error:
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pass
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self.socket = None
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return True
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# Write
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def _write(self, cnt):
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if not self.connected: return
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self.socket.send(cnt)
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def format(self, txt):
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if isinstance(txt, bytes):
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return txt + b'\r\n'
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else:
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return txt.encode() + b'\r\n'
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# Read
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def read(self):
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if not self.connected: return
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raw = self.socket.recv(1024)
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temp = (self.readbuffer + raw).split(b'\r\n')
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self.readbuffer = temp.pop()
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for line in temp:
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yield line
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