hybrid, ts6, ratbox: fix +p mode definitions properly

+p is noknock and rfc1459-style private on all 3 IRCds, though the latter bit is undocumented in /help cmodes (maybe it's assumed?)
+p is also "paranoia" on hybrid, which adds more restrictions to halfops and /invite

(cherry picked from commit c107f0062f)

docs/technical/channel-modes.csv

@@ -44,8 +44,9 @@ oplevel_apass,,,,,,,A,,A,A,
 oplevel_upass,,,,,,,U,,U,U,
 opmoderated,,U (extras/m_opmoderated),z,z,,,,,,,
 owner,,q (m_customprefix/m_chanprotect),,y (when enabled),q,,,,,,
+paranoia,,,,,,p,,,,,
 permanent,,P (m_permchannels),P,P,P,,z,,,,P
-private,p,p,,,p,,p,p,p,p,p
+private,p,p,,,p,,p,,p,p,p
 quiet,,,q,q,,,,,,,
 redirect,,L (m_redirect),f,f,L,,L,,,,
 registered,,r (m_services_account),,,r,r,R,,R,R,r

protocols/hybrid.py

@@ -23,16 +23,18 @@ class HybridProtocol(TS6Protocol):
         f = self.irc.send
 
         # https://github.com/grawity/irc-docs/blob/master/server/ts6.txt#L80
+        # Note: according to hybrid source code, +p is paranoia, noknock,
+        # AND rfc1459-style private, though the last isn't documented.
         cmodes = {
             # TS6 generic modes:
             'op': 'o', 'halfop': 'h', 'voice': 'v', 'ban': 'b', 'key': 'k',
             'limit': 'l', 'moderated': 'm', 'noextmsg': 'n',
-            'secret': 's', 'topiclock': 't',
+            'secret': 's', 'topiclock': 't', 'private': 'p',
             # hybrid-specific modes:
             'blockcolor': 'c', 'inviteonly': 'i', 'noctcp': 'C',
             'regmoderated': 'M', 'operonly': 'O', 'regonly': 'R',
             'sslonly': 'S', 'banexception': 'e', 'noknock': 'p',
-            'registered': 'r', 'invex': 'I',
+            'registered': 'r', 'invex': 'I', 'paranoia': 'p',
             # Now, map all the ABCD type modes:
             '*A': 'beI', '*B': 'k', '*C': 'l', '*D': 'cimnprstCMORS'
         }

protocols/ratbox.py

@@ -22,7 +22,7 @@ class RatboxProtocol(TS6Protocol):
         # Note: +r, +e, and +I support will be negotiated on link
         self.irc.cmodes = {'op': 'o', 'secret': 's', 'private': 'p', 'noextmsg': 'n', 'moderated': 'm',
                        'inviteonly': 'i', 'topiclock': 't', 'limit': 'l', 'ban': 'b', 'voice': 'v',
-                       'key': 'k', 'sslonly': 'S',
+                       'key': 'k', 'sslonly': 'S', 'noknock': 'p',
                        '*A': 'beI',
                        '*B': 'k',
                        '*C': 'l',

protocols/ts6.py

@@ -267,6 +267,7 @@ class TS6Protocol(TS6BaseProtocol):
                         'op': 'o', 'voice': 'v', 'ban': 'b', 'key': 'k', 'limit':
                         'l', 'moderated': 'm', 'noextmsg': 'n', 'noknock': 'p',
                         'secret': 's', 'topiclock': 't', 'inviteonly': 'i',
+                        'private': 'p',
                          # charybdis-specific modes:
                         'quiet': 'q', 'redirect': 'f', 'freetarget': 'F',
                         'joinflood': 'j', 'largebanlist': 'L', 'permanent': 'P',