Remove protocols/ratbox, superseded by ts6

Closes #543.

README.md

@@ -108,7 +108,7 @@ Support for these IRCds exist, but are not tested as frequently and thoroughly.
 * [IRCd-Hybrid](http://www.ircd-hybrid.org/) (8.2.x / svn trunk) - module `hybrid`
     - For host changing support and optimal functionality, a `service{}` block / U-line should be added for PyLink on every IRCd across your network.
     - For KLINE support to work, a `shared{}` block should also be added for PyLink on all servers.
-* [ircd-ratbox](http://www.ratbox.org/) (3.x) - module `ratbox`
+* [ircd-ratbox](http://www.ratbox.org/) (3.x) - module `ts6`
     - Host changing is not supported.
     - On ircd-ratbox, all known IPs of users will be shown in `/whois`, even if the client is a cloaked relay client: if you're paranoid about this, turn off Relay IP forwarding by setting the `relay_no_ips` option in the ratbox network's `server:` block.
     - For KLINE support to work, a `shared{}` block should be added for PyLink on all servers.

docs/technical/protocol-modules.dot

@@ -40,7 +40,6 @@ digraph G {
 		"IRCS2SProtocol" -> "p10";
 		"IRCS2SProtocol" -> "ngircd";
 		"TS6BaseProtocol" -> "ts6" -> "hybrid";
-		"ts6" -> "ratbox";
 		"TS6BaseProtocol" -> "inspircd";
 		"TS6BaseProtocol" -> "unreal";
 		"IRCCommonProtocol" -> "clientbot";

protocols/ratbox.py

@@ -1,96 +0,0 @@
-"""
-ratbox.py: ircd-ratbox protocol module for PyLink.
-"""
-
-import time
-
-from pylinkirc import utils, conf
-from pylinkirc.log import log
-from pylinkirc.classes import *
-from pylinkirc.protocols.ts6 import *
-
-class RatboxProtocol(TS6Protocol):
-
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        # Don't require EUID for Ratbox
-        self.required_caps.discard('EUID')
-
-        self.hook_map['LOGIN'] = 'CLIENT_SERVICES_LOGIN'
-        self.protocol_caps -= {'slash-in-hosts'}
-
-    def post_connect(self):
-        """Initializes a connection to a server."""
-
-        super().post_connect()
-
-        # Note: +r, +e, and +I support will be negotiated on link
-        self.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', 'noknock': 'p',
-                       '*A': 'beI',
-                       '*B': 'k',
-                       '*C': 'l',
-                       '*D': 'imnpstrS'}
-
-        self.umodes = {
-            'invisible': 'i', 'callerid': 'g', 'oper': 'o', 'admin': 'a', 'sno_botfloods': 'b',
-            'sno_clientconnections': 'c', 'sno_extclientconnections': 'C', 'sno_debug': 'd',
-            'sno_fullauthblock': 'f', 'sno_skill': 'k', 'locops': 'l',
-            'sno_rejectedclients': 'r', 'snomask': 's', 'sno_badclientconnections': 'u',
-            'wallops': 'w', 'sno_serverconnects': 'x', 'sno_stats': 'y',
-            'operwall': 'z', 'sno_operspy': 'Z', 'deaf': 'D', 'servprotect': 'S',
-            # Now, map all the ABCD type modes:
-            '*A': '', '*B': '', '*C': '', '*D': 'igoabcCdfklrsuwxyzZD'
-        }
-
-        self.extbans_matching.clear()
-
-    def spawn_client(self, nick, ident='null', host='null', realhost=None, modes=set(),
-            server=None, ip='0.0.0.0', realname=None, ts=None, opertype=None,
-            manipulatable=False):
-        """
-        Spawns a new client with the given options.
-
-        Note: No nick collision / valid nickname checks are done here; it is
-        up to plugins to make sure they don't introduce anything invalid.
-        """
-
-        # parameters: nickname, hopcount, nickTS, umodes, username, visible hostname, IP address,
-        # UID, gecos
-
-        server = server or self.sid
-        if not self.is_internal_server(server):
-            raise ValueError('Server %r is not a PyLink server!' % server)
-
-        uid = self.uidgen[server].next_uid()
-
-        ts = ts or int(time.time())
-        realname = realname or conf.conf['bot']['realname']
-        raw_modes = self.join_modes(modes)
-
-        orig_realhost = realhost
-        realhost = realhost or host
-
-        u = self.users[uid] = User(self,  nick, ts, uid, server, ident=ident, host=host, realname=realname,
-            realhost=realhost, ip=ip, manipulatable=manipulatable)
-        self.apply_modes(uid, modes)
-        self.servers[server].users.add(uid)
-
-        self._send_with_prefix(server, "UID {nick} {hopcount} {ts} {modes} {ident} {host} {ip} {uid} "
-                               ":{realname}".format(ts=ts, host=host,
-                               nick=nick, ident=ident, uid=uid,
-                               modes=raw_modes, ip=ip, realname=realname,
-                               hopcount=self.servers[server].hopcount))
-
-        if orig_realhost:
-            # If real host is specified, send it using ENCAP REALHOST
-            self._send_with_prefix(uid, "ENCAP * REALHOST %s" % orig_realhost)
-
-        return u
-
-    def update_client(self, target, field, text):
-        """update_client() stub for ratbox."""
-        raise NotImplementedError("User data changing is not supported on ircd-ratbox.")
-
-Class = RatboxProtocol