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relay: check for nicks starting with numbers or - after removing Unicode

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This commit is contained in:
James Lu 2019-03-20 21:08:21 -07:00
parent 1780271dd0
commit c9176a06fc
1 changed files with 14 additions and 12 deletions
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26
plugins/relay.py
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@ -191,12 +191,24 @@ def normalize_nick(irc, netname, nick, times_tagged=0, uid=''):
separator = separator.replace('/', FALLBACK_SEPARATOR)
nick = nick.replace('/', FALLBACK_SEPARATOR)
if nick.startswith(tuple(string.digits+'-')):
# Loop over every character in the nick, making sure that it only contains valid
# characters.
if not is_unicode_capable:
nick = _sanitize(nick)
else:
# UnrealIRCd 4's forbidden nick chars, from
# https://github.com/unrealircd/unrealircd/blob/02d69e7d8/src/modules/charsys.c#L152-L163
for char in """!+%@&~#$:'\"?*,.""":
nick = nick.replace(char, FALLBACK_CHARACTER)
if nick.startswith(tuple(string.digits)):
# On TS6 IRCds, nicks that start with 0-9 are only allowed if
# they match the UID of the originating server. Otherwise, you'll
# get nasty protocol violation SQUITs!
# Nicks starting with - are likewise not valid.
nick = '_' + nick
elif nick.startswith('-'):
# Nicks starting with - are likewise not valid.
nick = '_' + nick[1:]
# Maximum allowed length that relay nicks may have, minus the /network tag if used.
allowedlength = maxnicklen
@ -214,16 +226,6 @@ def normalize_nick(irc, netname, nick, times_tagged=0, uid=''):
if times_tagged >= 1:
nick += suffix
# Loop over every character in the nick, making sure that it only contains valid
# characters.
if not is_unicode_capable:
nick = _sanitize(nick)
else:
# UnrealIRCd 4's forbidden nick chars, from
# https://github.com/unrealircd/unrealircd/blob/02d69e7d8/src/modules/charsys.c#L152-L163
for char in """!+%@&~#$:'\"?*,.""":
nick = nick.replace(char, FALLBACK_CHARACTER)
while irc.nick_to_uid(nick) not in (None, uid):
# The nick we want exists: Increase the separator length by 1 if the user was already
# tagged, but couldn't be created due to a nick conflict. This can happen when someone