mirror of
https://github.com/jlu5/PyLink.git
synced 2025-10-31 06:57:21 +01:00
James Lu
parent
57f77c676d
commit
f7ab2564fe
317
classes.py
317
classes.py
@ -24,7 +24,7 @@ try:
|
||||
except ImportError:
|
||||
raise ImportError("PyLink requires ircmatch to function; please install it and try again.")
|
||||
|
||||
from . import world, utils, structures, conf, __version__
|
||||
from . import world, utils, structures, conf, __version__, selectdriver
|
||||
from .log import *
|
||||
from .utils import ProtocolError # Compatibility with PyLink 1.x
|
||||
|
||||
@ -1300,10 +1300,10 @@ class IRCNetwork(PyLinkNetworkCoreWithUtils):
|
||||
def __init__(self, *args, **kwargs):
|
||||
super().__init__(*args, **kwargs)
|
||||
|
||||
self._connection_thread = None
|
||||
self._queue = None
|
||||
self._ping_timer = None
|
||||
self._socket = None
|
||||
self._selector_key = None
|
||||
|
||||
def _init_vars(self, *args, **kwargs):
|
||||
super()._init_vars(*args, **kwargs)
|
||||
@ -1335,171 +1335,154 @@ class IRCNetwork(PyLinkNetworkCoreWithUtils):
|
||||
else:
|
||||
log.error(*args, **kwargs)
|
||||
|
||||
def _connect(self):
|
||||
def connect(self):
|
||||
"""
|
||||
Runs the connect loop for the IRC object. This is usually called by
|
||||
__init__ in a separate thread to allow multiple concurrent connections.
|
||||
Connects to the network.
|
||||
"""
|
||||
while True:
|
||||
self._pre_connect()
|
||||
self._pre_connect()
|
||||
|
||||
ip = self.serverdata["ip"]
|
||||
port = self.serverdata["port"]
|
||||
checks_ok = True
|
||||
try:
|
||||
# Set the socket type (IPv6 or IPv4).
|
||||
stype = socket.AF_INET6 if self.serverdata.get("ipv6") else socket.AF_INET
|
||||
ip = self.serverdata["ip"]
|
||||
port = self.serverdata["port"]
|
||||
checks_ok = True
|
||||
try:
|
||||
# Set the socket type (IPv6 or IPv4).
|
||||
stype = socket.AF_INET6 if self.serverdata.get("ipv6") else socket.AF_INET
|
||||
|
||||
# Creat the socket.
|
||||
self._socket = socket.socket(stype)
|
||||
self._socket.setblocking(0)
|
||||
# Creat the socket.
|
||||
self._socket = socket.socket(stype)
|
||||
|
||||
# Set the socket bind if applicable.
|
||||
if 'bindhost' in self.serverdata:
|
||||
self._socket.bind((self.serverdata['bindhost'], 0))
|
||||
# Set the socket bind if applicable.
|
||||
if 'bindhost' in self.serverdata:
|
||||
self._socket.bind((self.serverdata['bindhost'], 0))
|
||||
|
||||
# Set the connection timeouts. Initial connection timeout is a
|
||||
# lot smaller than the timeout after we've connected; this is
|
||||
# intentional.
|
||||
self._socket.settimeout(self.pingfreq)
|
||||
# Set the connection timeouts. Initial connection timeout is a
|
||||
# lot smaller than the timeout after we've connected; this is
|
||||
# intentional.
|
||||
self._socket.settimeout(self.pingfreq)
|
||||
|
||||
# Resolve hostnames if it's not an IP address already.
|
||||
old_ip = ip
|
||||
ip = socket.getaddrinfo(ip, port, stype)[0][-1][0]
|
||||
log.debug('(%s) Resolving address %s to %s', self.name, old_ip, ip)
|
||||
# Resolve hostnames if it's not an IP address already.
|
||||
old_ip = ip
|
||||
ip = socket.getaddrinfo(ip, port, stype)[0][-1][0]
|
||||
log.debug('(%s) Resolving address %s to %s', self.name, old_ip, ip)
|
||||
|
||||
# Enable SSL if set to do so.
|
||||
self.ssl = self.serverdata.get('ssl')
|
||||
if self.ssl:
|
||||
log.info('(%s) Attempting SSL for this connection...', self.name)
|
||||
certfile = self.serverdata.get('ssl_certfile')
|
||||
keyfile = self.serverdata.get('ssl_keyfile')
|
||||
# Enable SSL if set to do so.
|
||||
self.ssl = self.serverdata.get('ssl')
|
||||
if self.ssl:
|
||||
log.info('(%s) Attempting SSL for this connection...', self.name)
|
||||
certfile = self.serverdata.get('ssl_certfile')
|
||||
keyfile = self.serverdata.get('ssl_keyfile')
|
||||
|
||||
context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
||||
# Disable SSLv2 and SSLv3 - these are insecure
|
||||
context.options |= ssl.OP_NO_SSLv2
|
||||
context.options |= ssl.OP_NO_SSLv3
|
||||
|
||||
# Cert and key files are optional, load them if specified.
|
||||
if certfile and keyfile:
|
||||
try:
|
||||
context.load_cert_chain(certfile, keyfile)
|
||||
except OSError:
|
||||
log.exception('(%s) Caught OSError trying to '
|
||||
'initialize the SSL connection; '
|
||||
'are "ssl_certfile" and '
|
||||
'"ssl_keyfile" set correctly?',
|
||||
self.name)
|
||||
checks_ok = False
|
||||
|
||||
self._socket = context.wrap_socket(self._socket)
|
||||
|
||||
log.info("Connecting to network %r on %s:%s", self.name, ip, port)
|
||||
self._socket.connect((ip, port))
|
||||
self._socket.settimeout(self.pingtimeout)
|
||||
|
||||
# If SSL was enabled, optionally verify the certificate
|
||||
# fingerprint for some added security. I don't bother to check
|
||||
# the entire certificate for validity, since most IRC networks
|
||||
# self-sign their certificates anyways.
|
||||
if self.ssl and checks_ok:
|
||||
peercert = self._socket.getpeercert(binary_form=True)
|
||||
|
||||
# Hash type is configurable using the ssl_fingerprint_type
|
||||
# value, and defaults to sha256.
|
||||
hashtype = self.serverdata.get('ssl_fingerprint_type', 'sha256').lower()
|
||||
context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
||||
# Disable SSLv2 and SSLv3 - these are insecure
|
||||
context.options |= ssl.OP_NO_SSLv2
|
||||
context.options |= ssl.OP_NO_SSLv3
|
||||
|
||||
# Cert and key files are optional, load them if specified.
|
||||
if certfile and keyfile:
|
||||
try:
|
||||
hashfunc = getattr(hashlib, hashtype)
|
||||
except AttributeError:
|
||||
log.error('(%s) Unsupported SSL certificate fingerprint type %r given, disconnecting...',
|
||||
self.name, hashtype)
|
||||
checks_ok = False
|
||||
else:
|
||||
fp = hashfunc(peercert).hexdigest()
|
||||
expected_fp = self.serverdata.get('ssl_fingerprint')
|
||||
context.load_cert_chain(certfile, keyfile)
|
||||
except OSError:
|
||||
log.exception('(%s) Caught OSError trying to '
|
||||
'initialize the SSL connection; '
|
||||
'are "ssl_certfile" and '
|
||||
'"ssl_keyfile" set correctly?',
|
||||
self.name)
|
||||
checks_ok = False
|
||||
|
||||
if expected_fp and checks_ok:
|
||||
if fp != expected_fp:
|
||||
# SSL Fingerprint doesn't match; break.
|
||||
log.error('(%s) Uplink\'s SSL certificate '
|
||||
'fingerprint (%s) does not match the '
|
||||
'one configured: expected %r, got %r; '
|
||||
'disconnecting...', self.name, hashtype,
|
||||
expected_fp, fp)
|
||||
checks_ok = False
|
||||
else:
|
||||
log.info('(%s) Uplink SSL certificate fingerprint '
|
||||
'(%s) verified: %r', self.name, hashtype,
|
||||
fp)
|
||||
self._socket = context.wrap_socket(self._socket)
|
||||
|
||||
self._selector_key = selectdriver.register(self)
|
||||
log.info("Connecting to network %r on %s:%s", self.name, ip, port)
|
||||
self._socket.connect((ip, port))
|
||||
self._socket.settimeout(self.pingtimeout)
|
||||
|
||||
# If SSL was enabled, optionally verify the certificate
|
||||
# fingerprint for some added security. I don't bother to check
|
||||
# the entire certificate for validity, since most IRC networks
|
||||
# self-sign their certificates anyways.
|
||||
if self.ssl and checks_ok:
|
||||
peercert = self._socket.getpeercert(binary_form=True)
|
||||
|
||||
# Hash type is configurable using the ssl_fingerprint_type
|
||||
# value, and defaults to sha256.
|
||||
hashtype = self.serverdata.get('ssl_fingerprint_type', 'sha256').lower()
|
||||
|
||||
try:
|
||||
hashfunc = getattr(hashlib, hashtype)
|
||||
except AttributeError:
|
||||
log.error('(%s) Unsupported SSL certificate fingerprint type %r given, disconnecting...',
|
||||
self.name, hashtype)
|
||||
checks_ok = False
|
||||
else:
|
||||
fp = hashfunc(peercert).hexdigest()
|
||||
expected_fp = self.serverdata.get('ssl_fingerprint')
|
||||
|
||||
if expected_fp and checks_ok:
|
||||
if fp != expected_fp:
|
||||
# SSL Fingerprint doesn't match; break.
|
||||
log.error('(%s) Uplink\'s SSL certificate '
|
||||
'fingerprint (%s) does not match the '
|
||||
'one configured: expected %r, got %r; '
|
||||
'disconnecting...', self.name, hashtype,
|
||||
expected_fp, fp)
|
||||
checks_ok = False
|
||||
else:
|
||||
log.info('(%s) Uplink\'s SSL certificate fingerprint (%s) '
|
||||
'is %r. You can enhance the security of your '
|
||||
'link by specifying this in a "ssl_fingerprint"'
|
||||
' option in your server block.', self.name,
|
||||
hashtype, fp)
|
||||
log.info('(%s) Uplink SSL certificate fingerprint '
|
||||
'(%s) verified: %r', self.name, hashtype,
|
||||
fp)
|
||||
else:
|
||||
log.info('(%s) Uplink\'s SSL certificate fingerprint (%s) '
|
||||
'is %r. You can enhance the security of your '
|
||||
'link by specifying this in a "ssl_fingerprint"'
|
||||
' option in your server block.', self.name,
|
||||
hashtype, fp)
|
||||
|
||||
if checks_ok:
|
||||
if checks_ok:
|
||||
|
||||
self._queue_thread = threading.Thread(name="Queue thread for %s" % self.name,
|
||||
target=self._process_queue, daemon=True)
|
||||
self._queue_thread.start()
|
||||
self._queue_thread = threading.Thread(name="Queue thread for %s" % self.name,
|
||||
target=self._process_queue, daemon=True)
|
||||
self._queue_thread.start()
|
||||
|
||||
self.sid = self.serverdata.get("sid")
|
||||
# All our checks passed, get the protocol module to connect and run the listen
|
||||
# loop. This also updates any SID values should the protocol module do so.
|
||||
self.post_connect()
|
||||
self.sid = self.serverdata.get("sid")
|
||||
# All our checks passed, get the protocol module to connect and run the listen
|
||||
# loop. This also updates any SID values should the protocol module do so.
|
||||
self.post_connect()
|
||||
|
||||
log.info('(%s) Enumerating our own SID %s', self.name, self.sid)
|
||||
host = self.hostname()
|
||||
log.info('(%s) Enumerating our own SID %s', self.name, self.sid)
|
||||
host = self.hostname()
|
||||
|
||||
self.servers[self.sid] = Server(self, None, host, internal=True,
|
||||
desc=self.serverdata.get('serverdesc')
|
||||
or conf.conf['pylink']['serverdesc'])
|
||||
|
||||
log.info('(%s) Starting ping schedulers....', self.name)
|
||||
self._schedule_ping()
|
||||
log.info('(%s) Server ready; listening for data.', self.name)
|
||||
self.autoconnect_active_multiplier = 1 # Reset any extra autoconnect delays
|
||||
self._run_irc()
|
||||
else: # Configuration error :(
|
||||
log.error('(%s) A configuration error was encountered '
|
||||
'trying to set up this connection. Please check'
|
||||
' your configuration file and try again.',
|
||||
self.name)
|
||||
# _run_irc() or the protocol module it called raised an exception, meaning we've disconnected!
|
||||
# Note: socket.error, ConnectionError, IOError, etc. are included in OSError since Python 3.3,
|
||||
# so we don't need to explicitly catch them here.
|
||||
# We also catch SystemExit here as a way to abort out connection threads properly, and stop the
|
||||
# IRC connection from freezing instead.
|
||||
except (OSError, RuntimeError, SystemExit) as e:
|
||||
self._log_connection_error('(%s) Disconnected from IRC:', self.name, exc_info=True)
|
||||
self.servers[self.sid] = Server(self, None, host, internal=True,
|
||||
desc=self.serverdata.get('serverdesc')
|
||||
or conf.conf['pylink']['serverdesc'])
|
||||
|
||||
log.info('(%s) Starting ping schedulers....', self.name)
|
||||
self._schedule_ping()
|
||||
log.info('(%s) Server ready; listening for data.', self.name)
|
||||
self.autoconnect_active_multiplier = 1 # Reset any extra autoconnect delays
|
||||
else: # Configuration error :(
|
||||
log.error('(%s) A configuration error was encountered '
|
||||
'trying to set up this connection. Please check'
|
||||
' your configuration file and try again.',
|
||||
self.name)
|
||||
# _run_irc() or the protocol module it called raised an exception, meaning we've disconnected!
|
||||
# Note: socket.error, ConnectionError, IOError, etc. are included in OSError since Python 3.3,
|
||||
# so we don't need to explicitly catch them here.
|
||||
# We also catch SystemExit here as a way to abort out connection threads properly, and stop the
|
||||
# IRC connection from freezing instead.
|
||||
except (OSError, RuntimeError, SystemExit) as e:
|
||||
self._log_connection_error('(%s) Disconnected from IRC:', self.name, exc_info=True)
|
||||
if not self._aborted.is_set():
|
||||
self.disconnect()
|
||||
|
||||
if not self._run_autoconnect():
|
||||
return
|
||||
|
||||
def connect(self):
|
||||
log.debug('(%s) calling _connect() (world.testing=%s)', self.name, world.testing)
|
||||
if world.testing:
|
||||
# HACK: Don't thread if we're running tests.
|
||||
self._connect()
|
||||
else:
|
||||
if self._connection_thread and self._connection_thread.is_alive():
|
||||
raise RuntimeError("Refusing to start multiple connection threads for network %r!" % self.name)
|
||||
|
||||
self._connection_thread = threading.Thread(target=self._connect,
|
||||
name="Listener for %s" %
|
||||
self.name)
|
||||
self._connection_thread.start()
|
||||
|
||||
def disconnect(self):
|
||||
"""Handle disconnects from the remote server."""
|
||||
self._pre_disconnect()
|
||||
|
||||
if self._socket is not None:
|
||||
selectdriver.unregister(self)
|
||||
try:
|
||||
log.debug('(%s) disconnect: Shutting down socket.', self.name)
|
||||
self._socket.shutdown(socket.SHUT_RDWR)
|
||||
@ -1523,6 +1506,9 @@ class IRCNetwork(PyLinkNetworkCoreWithUtils):
|
||||
self._ping_timer.cancel()
|
||||
self._post_disconnect()
|
||||
|
||||
if self._run_autoconnect():
|
||||
self.connect()
|
||||
|
||||
def handle_events(self, line):
|
||||
raise NotImplementedError
|
||||
|
||||
@ -1547,38 +1533,35 @@ class IRCNetwork(PyLinkNetworkCoreWithUtils):
|
||||
return hook_args
|
||||
|
||||
def _run_irc(self):
|
||||
"""Main IRC loop which listens for messages."""
|
||||
buf = b""
|
||||
data = b""
|
||||
while (not self._aborted.is_set()) and not world.shutting_down.is_set():
|
||||
|
||||
try:
|
||||
data = self._socket.recv(2048)
|
||||
except BlockingIOError:
|
||||
log.debug('(%s) No data to read, trying again later...', self.name)
|
||||
if self._aborted.wait(self.SOCKET_REPOLL_WAIT):
|
||||
break
|
||||
continue
|
||||
except OSError:
|
||||
# Suppress socket read warnings from lingering recv() calls if
|
||||
# we've been told to shutdown.
|
||||
if self._aborted.is_set():
|
||||
return
|
||||
raise
|
||||
|
||||
buf += data
|
||||
if not data:
|
||||
self._log_connection_error('(%s) Connection lost, disconnecting.', self.name)
|
||||
return
|
||||
elif (time.time() - self.lastping) > self.pingtimeout:
|
||||
self._log_connection_error('(%s) Connection timed out.', self.name)
|
||||
"""
|
||||
Message handler, called when select() has data to read.
|
||||
"""
|
||||
buf = b''
|
||||
data = b''
|
||||
try:
|
||||
data = self._socket.recv(2048)
|
||||
except OSError:
|
||||
# Suppress socket read warnings from lingering recv() calls if
|
||||
# we've been told to shutdown.
|
||||
if self._aborted.is_set():
|
||||
return
|
||||
raise
|
||||
|
||||
while b'\n' in buf:
|
||||
line, buf = buf.split(b'\n', 1)
|
||||
line = line.strip(b'\r')
|
||||
line = line.decode(self.encoding, "replace")
|
||||
self.parse_irc_command(line)
|
||||
buf += data
|
||||
if not data:
|
||||
self._log_connection_error('(%s) Connection lost, disconnecting.', self.name)
|
||||
self.disconnect()
|
||||
return
|
||||
elif (time.time() - self.lastping) > self.pingtimeout:
|
||||
self._log_connection_error('(%s) Connection timed out.', self.name)
|
||||
self.disconnect()
|
||||
return
|
||||
|
||||
while b'\n' in buf:
|
||||
line, buf = buf.split(b'\n', 1)
|
||||
line = line.strip(b'\r')
|
||||
line = line.decode(self.encoding, "replace")
|
||||
self.parse_irc_command(line)
|
||||
|
||||
def _send(self, data):
|
||||
"""Sends raw text to the uplink server."""
|
||||
|
||||
@ -44,7 +44,7 @@ def main():
|
||||
conf.load_conf(args.config)
|
||||
|
||||
from pylinkirc.log import log
|
||||
from pylinkirc import classes, utils, coremods
|
||||
from pylinkirc import classes, utils, coremods, selectdriver
|
||||
|
||||
world.daemon = args.daemonize
|
||||
if args.daemonize:
|
||||
@ -177,3 +177,4 @@ def main():
|
||||
|
||||
world.started.set()
|
||||
log.info("Loaded plugins: %s", ', '.join(sorted(world.plugins.keys())))
|
||||
selectdriver.start()
|
||||
|
||||
44
selectdriver.py
Normal file
44
selectdriver.py
Normal file
@ -0,0 +1,44 @@
|
||||
"""
|
||||
Socket handling driver using the selectors module. epoll, kqueue, and devpoll
|
||||
are used internally when available.
|
||||
"""
|
||||
|
||||
import selectors
|
||||
import threading
|
||||
|
||||
from pylinkirc import world
|
||||
from pylinkirc.log import log
|
||||
|
||||
SELECT_TIMEOUT = 0.5
|
||||
|
||||
selector = selectors.DefaultSelector()
|
||||
|
||||
def _process_conns():
|
||||
"""Main loop which processes connected sockets."""
|
||||
|
||||
while not world.shutting_down.is_set():
|
||||
for socketkey, mask in selector.select(timeout=SELECT_TIMEOUT):
|
||||
irc = socketkey.data
|
||||
if mask & selectors.EVENT_READ:
|
||||
irc._run_irc()
|
||||
|
||||
def register(irc):
|
||||
"""
|
||||
Registers a network to the global selectors instance.
|
||||
"""
|
||||
log.debug('selectdriver: registering %s for network %s', irc._socket, irc.name)
|
||||
selector.register(irc._socket, selectors.EVENT_READ, data=irc)
|
||||
|
||||
def unregister(irc):
|
||||
"""
|
||||
Removes a network from the global selectors instance.
|
||||
"""
|
||||
log.debug('selectdriver: de-registering %s for network %s', irc._socket, irc.name)
|
||||
selector.unregister(irc._socket)
|
||||
|
||||
def start():
|
||||
"""
|
||||
Starts a thread to process connections.
|
||||
"""
|
||||
t = threading.Thread(target=_process_conns, name="Selector driver loop")
|
||||
t.start()
|
||||
Loading…
x
Reference in New Issue
Block a user