add various channel mode tests

irctest/controllers/ngircd.py

@@ -28,6 +28,9 @@
 [Operator]
     Name = operuser
     Password = operpassword
+
+[Limits]
+    MaxNickLength = 32  # defaults to 9
 """
 
 

irctest/server_tests/chmodes/modeis.py

@@ -0,0 +1,67 @@
+"""
+Test RPL_CHANNELMODEIS and RPL_CHANNELCREATED as responses to
+`MODE #channel`:
+<https://modern.ircdocs.horse/#rplcreationtime-329>
+<https://modern.ircdocs.horse/#rplchannelmodeis-324>
+"""
+
+from irctest import cases
+from irctest.numerics import RPL_CHANNELCREATED, RPL_CHANNELMODEIS
+from irctest.patma import ANYSTR, ListRemainder
+
+
+class RplChannelModeIsTestCase(cases.BaseServerTestCase):
+    @cases.mark_specifications("Modern")
+    @cases.xfailIfSoftware(
+        ["irc2", "Sable"],
+        "irc2 doesn't support 329 RPL_CHANNELCREATED"
+        "https://github.com/Libera-Chat/sable/issues/130",
+    )
+    def testChannelModeIs(self):
+        self.connectClient("chanop", name="chanop")
+        self.joinChannel("chanop", "#chan")
+        # i, n, and t are specified by RFC1459; some of them may be on by default,
+        # but after this, at least those three should be enabled:
+        self.sendLine("chanop", "MODE #chan +int")
+        self.getMessages("chanop")
+
+        self.sendLine("chanop", "MODE #chan")
+        messages = self.getMessages("chanop")
+        self.assertLessEqual(
+            {RPL_CHANNELMODEIS, RPL_CHANNELCREATED}, {msg.command for msg in messages}
+        )
+        for message in messages:
+            if message.command == RPL_CHANNELMODEIS:
+                # the final parameters are the mode string (e.g. `+int`),
+                # and then optionally any mode parameters (in case the ircd
+                # lists a mode that takes a parameter)
+                self.assertMessageMatch(
+                    message,
+                    command=RPL_CHANNELMODEIS,
+                    params=["chanop", "#chan", ListRemainder(ANYSTR, min_length=1)],
+                )
+                final_param = message.params[2]
+                self.assertEqual(final_param[0], "+")
+                enabled_modes = list(final_param[1:])
+                break
+
+        # remove all the modes listed by RPL_CHANNELMODEIS
+        self.sendLine("chanop", f"MODE #chan -{''.join(enabled_modes)}")
+        response = self.getMessage("chanop")
+        self.assertMessageMatch(response, command="MODE", params=["#chan", ANYSTR])
+        self.assertEqual(response.params[1][0], "-")
+        self.assertEqual(set(response.params[1][1:]), set(enabled_modes))
+
+        self.sendLine("chanop", "MODE #chan")
+        messages = self.getMessages("chanop")
+        self.assertLessEqual(
+            {RPL_CHANNELMODEIS, RPL_CHANNELCREATED}, {msg.command for msg in messages}
+        )
+        # all modes have been disabled; the correct representation of this is `+`
+        for message in messages:
+            if message.command == RPL_CHANNELMODEIS:
+                self.assertMessageMatch(
+                    message,
+                    command=RPL_CHANNELMODEIS,
+                    params=["chanop", "#chan", "+"],
+                )

irctest/server_tests/chmodes/operator.py

@@ -0,0 +1,101 @@
+"""
+Test various error and success cases around the channel operator mode:
+<https://modern.ircdocs.horse/#channel-operators>
+<https://modern.ircdocs.horse/#mode-message>
+"""
+
+from irctest import cases
+from irctest.numerics import (
+    ERR_CHANOPRIVSNEEDED,
+    ERR_NOSUCHCHANNEL,
+    ERR_NOSUCHNICK,
+    ERR_NOTONCHANNEL,
+    ERR_USERNOTINCHANNEL,
+)
+
+
+class ChannelOperatorModeTestCase(cases.BaseServerTestCase):
+    @cases.mark_specifications("Modern")
+    def testChannelOperatorMode(self):
+        self.connectClient("chanop", name="chanop")
+        self.joinChannel("chanop", "#chan")
+
+        self.connectClient("unprivileged", name="unprivileged")
+        self.joinChannel("unprivileged", "#chan")
+        self.getMessages("chanop")
+
+        self.connectClient("unrelated", name="unrelated")
+        self.joinChannel("unrelated", "#unrelated")
+        self.joinChannel("unprivileged", "#unrelated")
+        self.getMessages("unrelated")
+
+        # sender is a channel member but without the necessary privileges:
+        self.sendLine("unprivileged", "MODE #chan +o unprivileged")
+        messages = self.getMessages("unprivileged")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(messages[0], command=ERR_CHANOPRIVSNEEDED)
+
+        # sender is a chanop, but target nick is not in the channel:
+        self.sendLine("chanop", "MODE #chan +o unrelated")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(messages[0], command=ERR_USERNOTINCHANNEL)
+
+        # sender is a chanop, but target nick does not exist:
+        self.sendLine("chanop", "MODE #chan +o nobody")
+        messages = self.getMessages("chanop")
+        # ERR_NOSUCHNICK is typical, Bahamut additionally sends ERR_USERNOTINCHANNEL
+        self.assertGreaterEqual(len(messages), 1)
+        self.assertLessEqual(len(messages), 2)
+        for message in messages:
+            self.assertIn(message.command, [ERR_NOSUCHNICK, ERR_USERNOTINCHANNEL])
+
+        # target channel does not exist, but target nick does:
+        self.sendLine("chanop", "MODE #nonexistentchan +o chanop")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        # Modern: "If <target> is a channel that does not exist on the network,
+        # the ERR_NOSUCHCHANNEL (403) numeric is returned."
+        # However, Unreal sends 401 ERR_NOSUCHNICK here instead:
+        self.assertIn(messages[0].command, [ERR_NOSUCHCHANNEL, ERR_NOSUCHNICK])
+
+        # neither target channel nor target nick exist:
+        self.sendLine("chanop", "MODE #nonexistentchan +o nobody")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertIn(
+            messages[0].command,
+            [ERR_NOSUCHCHANNEL, ERR_NOTONCHANNEL, ERR_NOSUCHNICK, ERR_USERNOTINCHANNEL],
+        )
+
+        # sender is not a channel member, target nick exists but is not a channel member:
+        self.sendLine("chanop", "MODE #unrelated +o chanop")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertIn(
+            messages[0].command,
+            [ERR_NOTONCHANNEL, ERR_CHANOPRIVSNEEDED, ERR_USERNOTINCHANNEL],
+        )
+
+        # sender is not a channel member, target nick exists and is a channel member:
+        self.sendLine("chanop", "MODE #unrelated +o unprivileged")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertIn(messages[0].command, [ERR_NOTONCHANNEL, ERR_CHANOPRIVSNEEDED])
+
+        # test an actually successful mode grant:
+        self.sendLine("chanop", "MODE #chan +o unprivileged")
+        messages = self.getMessages("chanop")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(
+            messages[0],
+            command="MODE",
+            params=["#chan", "+o", "unprivileged"],
+        )
+        messages = self.getMessages("unprivileged")
+        self.assertEqual(len(messages), 1)
+        self.assertMessageMatch(
+            messages[0],
+            command="MODE",
+            params=["#chan", "+o", "unprivileged"],
+        )