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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 2016-07-11 15:58:18 -07:00
parent 8e29e16144
commit 6a1349847f

View File

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