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https://github.com/Mikaela/Limnoria.git
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ircutils: Improve robustness when faced with invalid hostmasks
eg. @ in nicks, which happened on pissnet earlier today.
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parent
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@ -60,7 +60,11 @@ def debug(s, *args):
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"""Prints a debug string. Most likely replaced by our logging debug."""
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print('***', s % args)
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userHostmaskRe = re.compile(r'^\S+!\S+@\S+$')
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def warning(s, *args):
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"""Prints a debug string. Most likely replaced by our logging debug."""
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print('###', s % args)
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userHostmaskRe = re.compile(r'^(?P<nick>\S+?)!(?P<user>\S+?)@(?P<host>\S+)$')
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def isUserHostmask(s):
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"""Returns whether or not the string s is a valid User hostmask."""
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return userHostmaskRe.match(s) is not None
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@ -91,9 +95,17 @@ def hostFromHostmask(hostmask):
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def splitHostmask(hostmask):
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"""hostmask => (nick, user, host)
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Returns the nick, user, host of a user hostmask."""
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assert isUserHostmask(hostmask)
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nick, rest = hostmask.rsplit('!', 1)
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user, host = rest.rsplit('@', 1)
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m = userHostmaskRe.match(hostmask)
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assert m is not None, hostmask
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nick = m.group("nick")
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user = m.group("user")
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host = m.group("host")
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if set("!@") & set(nick+user+host):
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# There should never be either of these characters in the part.
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# As far as I know it never happens in practice aside from networks
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# broken by design.
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warning("Invalid hostmask format: %s", hostmask)
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# TODO: error if strictRfc is True
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return (minisix.intern(nick), minisix.intern(user), minisix.intern(host))
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def joinHostmask(nick, ident, host):
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@ -329,6 +329,7 @@ atexit.register(logging.shutdown)
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# ircutils will work without this, but it's useful.
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ircutils.debug = debug
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ircutils.warning = warning
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def getPluginLogger(name):
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if not conf.supybot.log.plugins.individualLogfiles():
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@ -113,6 +113,17 @@ class FunctionsTestCase(SupyTestCase):
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self.assertFalse(ircutils.isUserHostmask('@'))
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self.assertFalse(ircutils.isUserHostmask('!bar@baz'))
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def testSplitHostmask(self):
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# This is the only valid case:
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self.assertEqual(ircutils.splitHostmask('foo!bar@baz'),
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('foo', 'bar', 'baz'))
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# Extravagant cases that never happen on real networks:
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self.assertEqual(ircutils.splitHostmask('foo!bar@baz!qux'),
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('foo', 'bar', 'baz!qux'))
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self.assertEqual(ircutils.splitHostmask('foo!bar@baz!qux@quux'),
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('foo', 'bar', 'baz!qux@quux'))
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def testIsChannel(self):
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self.assertTrue(ircutils.isChannel('#'))
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self.assertTrue(ircutils.isChannel('&'))
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