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https://github.com/jlu5/PyLink.git
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Attempt to make sender validation in protocols a bit less repetitive
This commit is contained in:
James Lu
parent
05752d9f60
commit
7003ff848d
32
classes.py
32
classes.py
@ -907,6 +907,38 @@ class Protocol():
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target = self.irc.nickToUid(target) or target
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return target
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def checkSender(check):
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"""
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Helper function for protocols which validates that the sender given is
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an internal client or server.
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Check is given as a string, where 's' refers to server,
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'c' refers to client, and 'cs' refers to either server or client."""
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# We have to actually wrap this twice, to past checkSender('string')
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# arguments to the actual function that performs checks. Gross.
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def checkSender_get_check(func):
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def checkSender_wrapper(self, sender, *args, **kwargs):
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# 1) Perform checks.
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isclient = self.irc.isInternalClient(sender)
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isserver = self.irc.isInternalServer(sender)
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log.debug('checkServer: query is %s, target is %s', check, sender)
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log.debug('checkServer: isclient: %s, isserver: %s', isclient, isserver)
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if check == 'cs':
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if not (isclient or isserver):
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raise LookupError('No such PyLink client/server exists.')
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elif check == 'c':
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if not isclient:
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raise LookupError('No such PyLink client exists.')
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elif check == 's':
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if not isserver:
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raise LookupError('No such PyLink server exists.')
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# 2) Call and return the data of the original function.
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return func(self, sender, *args, **kwargs)
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return checkSender_wrapper
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return checkSender_get_check
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### FakeIRC classes, used for test cases
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class FakeIRC(Irc):
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@ -71,16 +71,15 @@ class InspIRCdProtocol(TS6BaseProtocol):
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self._operUp(uid, opertype)
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return u
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@checkSender('c')
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def join(self, client, channel):
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"""Joins a PyLink client to a channel."""
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# InspIRCd doesn't distinguish between burst joins and regular joins,
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# so what we're actually doing here is sending FJOIN from the server,
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# on behalf of the clients that are joining.
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channel = utils.toLower(self.irc, channel)
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server = self.irc.isInternalClient(client)
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if not server:
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log.error('(%s) Error trying to join %r to %r (no such client exists)', self.irc.name, client, channel)
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raise LookupError('No such PyLink client exists.')
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server = self.irc.getServer(client)
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# Strip out list-modes, they shouldn't be ever sent in FJOIN.
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modes = [m for m in self.irc.channels[channel].modes if m[0] not in self.irc.cmodes['*A']]
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self._send(server, "FJOIN {channel} {ts} {modes} :,{uid}".format(
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@ -89,6 +88,7 @@ class InspIRCdProtocol(TS6BaseProtocol):
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self.irc.channels[channel].users.add(client)
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self.irc.users[client].channels.add(channel)
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@checkSender('s')
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def sjoin(self, server, channel, users, ts=None):
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"""Sends an SJOIN for a group of users to a channel.
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@ -104,8 +104,6 @@ class InspIRCdProtocol(TS6BaseProtocol):
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server = server or self.irc.sid
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assert users, "sjoin: No users sent?"
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log.debug('(%s) sjoin: got %r for users', self.irc.name, users)
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if not server:
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raise LookupError('No such PyLink client exists.')
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orig_ts = self.irc.channels[channel].ts
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ts = ts or orig_ts
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@ -163,15 +161,12 @@ class InspIRCdProtocol(TS6BaseProtocol):
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userobj.opertype = otype
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self._send(target, 'OPERTYPE %s' % otype.replace(" ", "_"))
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@checkSender('cs')
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def mode(self, numeric, target, modes, ts=None):
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"""Sends mode changes from a PyLink client/server."""
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# -> :9PYAAAAAA FMODE #pylink 1433653951 +os 9PYAAAAAA
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# -> :9PYAAAAAA MODE 9PYAAAAAA -i+w
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if (not self.irc.isInternalClient(numeric)) and \
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(not self.irc.isInternalServer(numeric)):
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raise LookupError('No such PyLink client/server exists.')
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log.debug('(%s) inspircd._sendModes: received %r for mode list', self.irc.name, modes)
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if ('+o', None) in modes and not utils.isChannel(target):
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# https://github.com/inspircd/inspircd/blob/master/src/modules/m_spanningtree/opertype.cpp#L26-L28
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@ -185,12 +180,9 @@ class InspIRCdProtocol(TS6BaseProtocol):
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else:
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self._send(numeric, 'MODE %s %s' % (target, joinedmodes))
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@checkSender('cs')
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def kill(self, numeric, target, reason):
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"""Sends a kill from a PyLink client/server."""
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if (not self.irc.isInternalClient(numeric)) and \
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(not self.irc.isInternalServer(numeric)):
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raise LookupError('No such PyLink client/server exists.')
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# InspIRCd will show the raw kill message sent from our server as the quit message.
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# So, make the kill look actually like a kill instead of someone quitting with
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# an arbitrary message.
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@ -207,22 +199,23 @@ class InspIRCdProtocol(TS6BaseProtocol):
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if self.irc.isInternalClient(target):
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self.removeClient(target)
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@checkSender('s')
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def topicBurst(self, numeric, target, text):
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"""Sends a topic change from a PyLink server. This is usually used on burst."""
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if not self.irc.isInternalServer(numeric):
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raise LookupError('No such PyLink server exists.')
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ts = int(time.time())
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servername = self.irc.servers[numeric].name
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self._send(numeric, 'FTOPIC %s %s %s :%s' % (target, ts, servername, text))
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self.irc.channels[target].topic = text
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self.irc.channels[target].topicset = True
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@checkSender('c')
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def invite(self, numeric, target, channel):
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"""Sends an INVITE from a PyLink client.."""
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if not self.irc.isInternalClient(numeric):
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raise LookupError('No such PyLink client exists.')
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self._send(numeric, 'INVITE %s %s' % (target, channel))
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@checkSender('c')
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def knock(self, numeric, target, text):
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"""Sends a KNOCK from a PyLink client."""
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if not self.irc.isInternalClient(numeric):
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@ -284,7 +277,7 @@ class InspIRCdProtocol(TS6BaseProtocol):
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"protocol module. WHOIS requests are handled "
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"locally by InspIRCd servers, so there is no "
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"need for PyLink to send numerics directly yet.")
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@checkSender('c')
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def away(self, source, text):
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"""Sends an AWAY message from a PyLink client. <text> can be an empty string
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to unset AWAY status."""
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@ -334,6 +327,7 @@ class InspIRCdProtocol(TS6BaseProtocol):
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endburstf()
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return sid
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@checkSender('cs')
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def squit(self, source, target, text='No reason given'):
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"""SQUITs a PyLink server."""
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# -> :9PY SQUIT 9PZ :blah, blah
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