Fix various bugs uncovered by the LIST system
* Work around Twisted's broken handling of spaces * Work around Twisted's broken line decoding * Don't run signedOn twice for relays * Improved detection of whether the endpoint is connected to ZNC * Delay a LIST until all configured relays are online * Discard a LIST if there are no callbacks for it * Get rid of some double-negative ternary blocks
This commit is contained in:
parent
b4fa747853
commit
7ffb6125aa
131
core/bot.py
131
core/bot.py
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@ -3,7 +3,9 @@ from twisted.words.protocols.irc import IRCClient
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from twisted.internet.defer import Deferred
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from twisted.internet.task import LoopingCall
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from twisted.internet import reactor, task
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from twisted.words.protocols.irc import symbolic_to_numeric, numeric_to_symbolic, lowDequote, IRCBadMessage
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import sys
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from string import digits
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from random import randint
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from copy import deepcopy
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@ -36,9 +38,33 @@ def deliverRelayCommands(num, relayCommands, user=None, stage2=None):
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port,
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bot, contextFactory)
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def parsemsg(s):
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"""
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Breaks a message from an IRC server into its prefix, command, and
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arguments.
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@param s: The message to break.
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@type s: L{bytes}
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@return: A tuple of (prefix, command, args).
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@rtype: L{tuple}
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"""
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prefix = ''
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trailing = []
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if not s:
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raise IRCBadMessage("Empty line.")
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if s[0:1] == ':':
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prefix, s = s[1:].split(' ', 1)
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if s.find(' :') != -1:
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s, trailing = s.split(' :', 1)
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args = s.split(' ')
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args.append(trailing)
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else:
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args = s.split(' ')
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command = args.pop(0)
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return prefix, command, args
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class IRCRelay(IRCClient):
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def __init__(self, num, relayCommands, user, stage2):
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self.connected = False
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self.isconnected = False
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self.buffer = ""
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if user == None:
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self.user = main.config["Relay"]["User"]
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@ -78,7 +104,8 @@ class IRCRelay(IRCClient):
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deliverRelayCommands(self.num, commands, user, self.stage2)
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def signedOn(self):
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self.connected = True
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if not self.isconnected:
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self.isconnected = True
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log("signed on as a relay: %s" % self.num)
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#sendRelayNotification("Relay", {"type": "conn", "status": "connected"}) nobody actually cares
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sleeptime = 0
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@ -94,7 +121,7 @@ class IRCRelay(IRCClient):
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class IRCBot(IRCClient):
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def __init__(self, net, num):
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self.connected = False
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self.isconnected = False
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self.channels = []
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self.net = net
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self.num = num
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@ -121,12 +148,26 @@ class IRCBot(IRCClient):
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self.listOngoing = False # we are currently receiving a LIST
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self.listRetried = False # we asked and got nothing so asked again
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self.listAttempted = False # we asked for a list
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self.listSimple = False # after asking again we got the list, so
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# use the simple syntax from now on
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self.listSimple = False # after asking again we got the list, so use the simple
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# syntax from now on
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self.wantList = False # we want to send a LIST, but not all relays are active yet
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self.chanlimit = 0
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self.servername = None
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def lineReceived(self, line):
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if bytes != str and isinstance(line, bytes):
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# decode bytes from transport to unicode
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line = line.decode("utf-8", "replace")
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line = lowDequote(line)
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try:
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prefix, command, params = parsemsg(line)
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if command in numeric_to_symbolic:
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command = numeric_to_symbolic[command]
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self.handleCommand(command, prefix, params)
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except IRCBadMessage:
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self.badMessage(line, *sys.exc_info())
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def joinChannels(self, channels):
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sleeptime = 0.0
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increment = 0.8
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@ -172,8 +213,11 @@ class IRCBot(IRCClient):
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del cast["host"]
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del cast["channel"]
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if "Disconnected from IRC" in cast["msg"]:
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log("ZNC disconnected on %s - %i" (self.net, self.num))
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self.connected = False
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log("ZNC disconnected on %s - %i" % (self.net, self.num))
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self.isconnected = False
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if "Connected!" in cast["msg"]:
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log("ZNC connected on %s - %i" % (self.net, self.num))
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self.isconnected = True
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if not cast["type"] in ["query", "self", "highlight", "znc", "who"]:
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if "channel" in cast.keys() and not cast["type"] == "mode": # don't handle modes here
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if cast["channel"].lower() == self.nickname.lower(): # as they are channel == nickname
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@ -339,28 +383,38 @@ class IRCBot(IRCClient):
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self._tempList[0].append(d)
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if self.listSimple:
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self.sendLine("LIST")
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return d
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return d # return early if we know what to do
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if noargs:
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self.sendLine("LIST")
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else:
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self.sendLine("LIST >0")
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return d
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def list(self, noargs=False):
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if not self.listAttempted:
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self.listAttempted = True
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else:
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def list(self, noargs=False, nocheck=False):
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if self.listAttempted:
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debug("List request dropped, already asked for LIST - %s - %i" % (self.net, self.num))
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return
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if not self.listOngoing:
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self._list(noargs).addCallback(self.got_list)
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else:
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debug("List request dropped, already ongoing - %s - %i" % (self.net, self.num))
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self.listAttempted = True
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if self.listOngoing:
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debug("LIST request dropped, already ongoing - %s - %i" % (self.net, self.num))
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return
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else:
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if nocheck:
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allRelays = True # override the system - if this is
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else: # specified, we already did this
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allRelays = chankeep.allRelaysActive(self.net)
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if not allRelays:
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self.wantList = True
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debug("Not all relays were active for LIST request")
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return
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self._list(noargs).addCallback(self.got_list)
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def irc_RPL_LISTSTART(self, prefix, params):
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self.listAttempted = False
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self.listOngoing = True
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self.wantList = False
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def irc_RPL_LIST(self, prefix, params):
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channel = params[1]
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@ -369,6 +423,11 @@ class IRCBot(IRCClient):
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self._tempList[1].append([channel, users, topic])
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def irc_RPL_LISTEND(self, prefix, params):
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if not len(self._tempList[0]) > 0: # there are no callbacks, can't do anything there
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debug("We didn't ask for this LIST, discarding")
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self._tempList[0].clear()
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self._tempList[1].clear()
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return
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callbacks, info = self._tempList
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self.listOngoing = False
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for cb in callbacks:
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@ -379,13 +438,13 @@ class IRCBot(IRCClient):
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self._tempList[0].clear()
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self._tempList[1].clear()
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if noResults:
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if not self.listRetried:
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self.list(True)
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self.listRetried = True
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else:
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warn("List still empty after retry: %s - %i" % (net, num))
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if self.listRetried:
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warn("LIST still empty after retry: %s - %i" % (net, num))
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self.listRetried = False
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return
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else:
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self.list(True)
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self.listRetried = True
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else:
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if self.listRetried:
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self.listRetried = False
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@ -402,7 +461,10 @@ class IRCBot(IRCClient):
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if not any((x for x in options if any(y in x for y in interested))):
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return # check if any of interested is in any of options, some networks
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chanlimit = None # call isupport() more than once, so discard swiftly anything
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for i in options: # we don't care about
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if not self.isconnected: # we don't care about
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log("endpoint connected: %s - %i" % (self.net, self.num))
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self.isconnected = True
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for i in options:
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if i.startswith("CHANLIMIT"):
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if ":" in i:
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split = i.split(":")
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@ -415,14 +477,28 @@ class IRCBot(IRCClient):
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if len(split) == 2:
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chanlimit = split[1]
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break
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if chanlimit:
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print("chanlimit", chanlimit)
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try:
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self.chanlimit = int(chanlimit)
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except TypeError:
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warn("Invalid chanlimit: %s" % i)
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if self.num == 1: # Only one instance should do a list, so
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if self.chanlimit == 0:
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self.chanlimit = 200 # don't take the piss if it's unlimited
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allRelays = chankeep.allRelaysActive(self.net)
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print(self.net, self.num, allRelays)
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if allRelays:
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for i in main.network.keys():
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for x in main.network[i].relays.keys():
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name = i+str(x)
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if main.IRCPool[name].wantList == True:
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main.IRCPool[name].list(nocheck=True)
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debug("Asking for a list for %s after final relay %i connected" % (self.net, self.num))
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if self.num == 1: # Only one instance should do a list
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if self.chanlimit:
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self.list() # why not this one? :P
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if allRelays:
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self.list()
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else:
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self.wantList = True
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else:
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debug("Aborting LIST due to bad chanlimit")
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self.checkChannels()
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@ -496,7 +572,6 @@ class IRCBot(IRCClient):
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#END hacks
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def signedOn(self):
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self.connected = True
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log("signed on: %s - %i" % (self.net, self.num))
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#self.event(type="conn", status="connected")
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sendRelayNotification({"type": "conn", "net": self.net, "num": self.num, "status": "signedon"})
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@ -607,7 +682,7 @@ class IRCBotFactory(ReconnectingClientFactory):
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if not self.relay:
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userinfo.delChannels(self.net, self.client.channels)
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if not self.client == None:
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self.client.connected = False
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self.client.isconnected = False
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self.client.channels = []
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error = reason.getErrorMessage()
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log("%s - %i: connection lost: %s" % (self.net, self.num, error))
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@ -619,7 +694,7 @@ class IRCBotFactory(ReconnectingClientFactory):
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def clientConnectionFailed(self, connector, reason):
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if not self.client == None:
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self.client.connected = False
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self.client.isconnected = False
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self.client.channels = []
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error = reason.getErrorMessage()
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log("%s - %i: connection failed: %s" % (self.net, self.num, error))
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@ -12,7 +12,7 @@ def allRelaysActive(net):
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for i in main.network[net].relays.keys():
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name = net+str(i)
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if name in main.IRCPool.keys():
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if main.IRCPool[name].connected:
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if main.IRCPool[name].isconnected:
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existNum += 1
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if existNum == relayNum:
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return True
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@ -28,7 +28,8 @@ def getChanFree(net, new):
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chanfree[i] = main.IRCPool[name].chanlimit-len(main.IRCPool[name].channels)
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chanlimits.add(main.IRCPool[name].chanlimit)
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if not len(chanlimits) == 1:
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error("Network %s has servers with different CHANMAX values" % net)
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error("Network %s has servers with different CHANLIMIT values" % net)
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print(chanlimits)
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return False
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return (chanfree, chanlimits.pop())
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@ -72,7 +73,7 @@ def notifyJoin(net):
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def minifyChans(net, listinfo):
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if not allRelaysActive(net):
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error("All relays for %s are not active, cannot minify list")
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error("All relays for %s are not active, cannot minify list" % net)
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return False
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for i in main.network[net].relays.keys():
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name = net+str(i)
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