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handlers: handle WHOIS requests to unknown nicks instead of warning
"/whois pylink.server badnick" is allowed everywhere except InspIRCd.
This commit is contained in:
James Lu
parent
8e29e16144
commit
6a1349847f
@ -9,99 +9,102 @@ def handle_whois(irc, source, command, args):
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"""Handle WHOIS queries, for IRCds that send them across servers (charybdis, UnrealIRCd; NOT InspIRCd)."""
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target = args['target']
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user = irc.users.get(target)
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if user is None:
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log.warning('(%s) Got a WHOIS request for %r from %r, but the target '
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'doesn\'t exist in irc.users!', irc.name, target, source)
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return
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f = irc.proto.numeric
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server = irc.sid
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nick = user.nick
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sourceisOper = ('o', None) in irc.users[source].modes
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sourceisBot = (irc.umodes.get('bot'), None) in irc.users[source].modes
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# Get the full network name.
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netname = irc.serverdata.get('netname', irc.name)
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# https://www.alien.net.au/irc/irc2numerics.html
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# 311: sends nick!user@host information
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f(server, 311, source, "%s %s %s * :%s" % (nick, user.ident, user.host, user.realname))
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# 319: RPL_WHOISCHANNELS; Show public channels of the target, respecting
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# hidechans umodes for non-oper callers.
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isHideChans = (irc.umodes.get('hidechans'), None) in user.modes
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if (not isHideChans) or (isHideChans and sourceisOper):
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public_chans = []
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for chan in user.channels:
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c = irc.channels[chan]
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# Here, we'll want to hide secret/private channels from non-opers
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# who are not in them.
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if ((irc.cmodes.get('secret'), None) in c.modes or \
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(irc.cmodes.get('private'), None) in c.modes) \
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and not (sourceisOper or source in c.users):
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continue
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# Show the highest prefix mode like a regular IRCd does, if there are any.
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prefixes = c.getPrefixModes(target)
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if prefixes:
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highest = prefixes[-1]
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# Fetch the prefix mode letter from the named mode.
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modechar = irc.cmodes[highest]
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# Fetch and prepend the prefix character (@, +, etc.), given the mode letter.
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chan = irc.prefixmodes[modechar] + chan
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public_chans.append(chan)
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if public_chans: # Only send the line if the person is in any visible channels...
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f(server, 319, source, '%s :%s' % (nick, ' '.join(public_chans)))
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# 312: sends the server the target is on, and its server description.
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f(server, 312, source, "%s %s :%s" % (nick, irc.servers[server].name,
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irc.servers[server].desc))
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# 313: sends a string denoting the target's operator privilege if applicable.
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if ('o', None) in user.modes:
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# Check hideoper status. Require that either:
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# 1) +H is not set
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# 2) +H is set, but the caller is oper
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# 3) +H is set, but whois_use_hideoper is disabled in config
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isHideOper = (irc.umodes.get('hideoper'), None) in user.modes
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if (not isHideOper) or (isHideOper and sourceisOper) or \
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(isHideOper and not irc.botdata.get('whois_use_hideoper', True)):
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# Let's be gramatically correct. (If the opertype starts with a vowel,
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# write "an Operator" instead of "a Operator")
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n = 'n' if user.opertype[0].lower() in 'aeiou' else ''
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# I want to normalize the syntax: PERSON is an OPERTYPE on NETWORKNAME.
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# This is the only syntax InspIRCd supports, but for others it doesn't
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# really matter since we're handling the WHOIS requests by ourselves.
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f(server, 313, source, "%s :is a%s %s on %s" % (nick, n, user.opertype, netname))
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# 379: RPL_WHOISMODES, used by UnrealIRCd and InspIRCd to show user modes.
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# Only show this to opers!
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if sourceisOper:
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f(server, 378, source, "%s :is connecting from %s@%s %s" % (nick, user.ident, user.realhost, user.ip))
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f(server, 379, source, '%s :is using modes %s' % (nick, irc.joinModes(user.modes)))
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# 301: used to show away information if present
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away_text = user.away
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log.debug('(%s) coremods.handlers.handle_whois: away_text for %s is %r', irc.name, target, away_text)
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if away_text:
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f(server, 301, source, '%s :%s' % (nick, away_text))
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if (irc.umodes.get('bot'), None) in user.modes:
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# Show botmode info in WHOIS.
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f(server, 335, source, "%s :is a bot" % nick)
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# Call custom WHOIS handlers via the PYLINK_CUSTOM_WHOIS hook, unless the
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# caller is marked a bot and the whois_show_extensions_to_bots option is False
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if (sourceisBot and conf.conf['bot'].get('whois_show_extensions_to_bots')) or (not sourceisBot):
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irc.callHooks([source, 'PYLINK_CUSTOM_WHOIS', {'target': target, 'server': server}])
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if user is None: # User doesn't exist
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# <- :42X 401 7PYAAAAAB GL- :No such nick/channel
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nick = target
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f(server, 401, source, "%s :No such nick/channel" % nick)
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else:
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log.debug('(%s) coremods.handlers.handle_whois: skipping custom whois handlers because '
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'caller %s is marked as a bot', irc.name, source)
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nick = user.nick
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sourceisOper = ('o', None) in irc.users[source].modes
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sourceisBot = (irc.umodes.get('bot'), None) in irc.users[source].modes
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# Get the full network name.
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netname = irc.serverdata.get('netname', irc.name)
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# https://www.alien.net.au/irc/irc2numerics.html
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# 311: sends nick!user@host information
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f(server, 311, source, "%s %s %s * :%s" % (nick, user.ident, user.host, user.realname))
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# 319: RPL_WHOISCHANNELS; Show public channels of the target, respecting
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# hidechans umodes for non-oper callers.
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isHideChans = (irc.umodes.get('hidechans'), None) in user.modes
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if (not isHideChans) or (isHideChans and sourceisOper):
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public_chans = []
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for chan in user.channels:
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c = irc.channels[chan]
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# Here, we'll want to hide secret/private channels from non-opers
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# who are not in them.
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if ((irc.cmodes.get('secret'), None) in c.modes or \
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(irc.cmodes.get('private'), None) in c.modes) \
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and not (sourceisOper or source in c.users):
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continue
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# Show the highest prefix mode like a regular IRCd does, if there are any.
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prefixes = c.getPrefixModes(target)
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if prefixes:
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highest = prefixes[-1]
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# Fetch the prefix mode letter from the named mode.
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modechar = irc.cmodes[highest]
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# Fetch and prepend the prefix character (@, +, etc.), given the mode letter.
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chan = irc.prefixmodes[modechar] + chan
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public_chans.append(chan)
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if public_chans: # Only send the line if the person is in any visible channels...
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f(server, 319, source, '%s :%s' % (nick, ' '.join(public_chans)))
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# 312: sends the server the target is on, and its server description.
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f(server, 312, source, "%s %s :%s" % (nick, irc.servers[server].name,
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irc.servers[server].desc))
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# 313: sends a string denoting the target's operator privilege if applicable.
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if ('o', None) in user.modes:
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# Check hideoper status. Require that either:
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# 1) +H is not set
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# 2) +H is set, but the caller is oper
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# 3) +H is set, but whois_use_hideoper is disabled in config
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isHideOper = (irc.umodes.get('hideoper'), None) in user.modes
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if (not isHideOper) or (isHideOper and sourceisOper) or \
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(isHideOper and not irc.botdata.get('whois_use_hideoper', True)):
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# Let's be gramatically correct. (If the opertype starts with a vowel,
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# write "an Operator" instead of "a Operator")
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n = 'n' if user.opertype[0].lower() in 'aeiou' else ''
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# I want to normalize the syntax: PERSON is an OPERTYPE on NETWORKNAME.
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# This is the only syntax InspIRCd supports, but for others it doesn't
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# really matter since we're handling the WHOIS requests by ourselves.
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f(server, 313, source, "%s :is a%s %s on %s" % (nick, n, user.opertype, netname))
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# 379: RPL_WHOISMODES, used by UnrealIRCd and InspIRCd to show user modes.
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# Only show this to opers!
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if sourceisOper:
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f(server, 378, source, "%s :is connecting from %s@%s %s" % (nick, user.ident, user.realhost, user.ip))
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f(server, 379, source, '%s :is using modes %s' % (nick, irc.joinModes(user.modes)))
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# 301: used to show away information if present
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away_text = user.away
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log.debug('(%s) coremods.handlers.handle_whois: away_text for %s is %r', irc.name, target, away_text)
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if away_text:
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f(server, 301, source, '%s :%s' % (nick, away_text))
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if (irc.umodes.get('bot'), None) in user.modes:
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# Show botmode info in WHOIS.
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f(server, 335, source, "%s :is a bot" % nick)
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# Call custom WHOIS handlers via the PYLINK_CUSTOM_WHOIS hook, unless the
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# caller is marked a bot and the whois_show_extensions_to_bots option is False
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if (sourceisBot and conf.conf['bot'].get('whois_show_extensions_to_bots')) or (not sourceisBot):
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irc.callHooks([source, 'PYLINK_CUSTOM_WHOIS', {'target': target, 'server': server}])
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else:
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log.debug('(%s) coremods.handlers.handle_whois: skipping custom whois handlers because '
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'caller %s is marked as a bot', irc.name, source)
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# 318: End of WHOIS.
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f(server, 318, source, "%s :End of /WHOIS list" % nick)
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