From bb7bc6498cc94c8c0993a4c33b9d274c172502f9 Mon Sep 17 00:00:00 2001
From: Mark Veidemanis <m@zm.is>
Date: Fri, 24 Dec 2021 17:24:45 +0000
Subject: [PATCH] Add IRC module

---
 handler/irc.py | 139 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 handler/irc.py

diff --git a/handler/irc.py b/handler/irc.py
new file mode 100644
index 0000000..c794839
--- /dev/null
+++ b/handler/irc.py
@@ -0,0 +1,139 @@
+# Twisted/Klein imports
+from twisted.logger import Logger
+from twisted.words.protocols import irc
+from twisted.internet import protocol, reactor, ssl
+
+# Project imports
+from settings import settings
+
+
+class IRCBot(irc.IRCClient):
+    def __init__(self, log):
+        self.log = log
+        self.nickname = settings.IRC.Nick
+        self.password = settings.IRC.Pass
+        self.realname = self.nickname
+        self.username = self.nickname
+
+        self.userinfo = None
+        self.fingerReply = None
+        self.versionName = None
+        self.sourceURL = None
+
+        self.prefix = "!"
+        self.admins = (settings.IRC.Admins).split("\n")
+        self.highlight = (settings.IRC.Highlight).split("\n")
+
+    def parse(self, user, host, channel, msg):
+        spl = msg.split()
+        # nick = user.split("!")[0]
+
+        cmd = spl[0]
+
+        # help command
+        # if cmd == "help":
+        #    self.msg(channel, "Hey it's me")
+
+        # setprefix command
+        if cmd == "setprefix" and host in self.admins:
+            if len(spl) == 2:
+                if len(spl[1]) == 1:
+                    self.prefix = spl[1]
+                    self.msg(channel, "Prefix set to '%s'." % self.prefix)
+            else:
+                self.msg(channel, "Incorrect usage")
+
+        # addmod command
+        elif cmd == "addmod" and host in self.admins:
+            if len(spl) == 2:
+                if not spl[1] in self.admins:
+                    self.admins.append(spl[1])
+                    self.msg(channel, "%s added to admins." % spl[1])
+                else:
+                    self.msg(channel, "%s is already an admin!" % spl[1])
+            else:
+                self.msg(channel, "Incorrect usage")
+
+        # delmod command
+        elif cmd == "delmod" and host in self.admins:
+            if len(spl) == 2:
+                if spl[1] in self.admins:
+                    self.admins.remove(spl[1])
+                    self.msg(channel, "%s removed from admins." % spl[1])
+                else:
+                    self.msg(channel, "%s is not an admin!" % spl[1])
+            else:
+                self.msg(channel, "Incorrect usage")
+
+        # join command
+        elif cmd == "join" and host in self.admins:
+            if len(spl) == 2:
+                self.join(spl[1])
+            else:
+                self.msg(channel, "Incorrect usage")
+
+        # part command
+        elif cmd == "part" and host in self.admins:
+            if len(spl) == 2:
+                self.part(spl[1])
+            else:
+                self.part(channel)
+        elif cmd == "raw" and host in self.admins:
+            self.sendLine(" ".join(spl[1:]))
+
+    def stopcall(self, call):
+        call.stop()
+
+    def signedOn(self):
+        self.log.info("Signed on as %s" % (self.nickname))
+        self.join(settings.IRC.Channel)
+
+    def joined(self, channel):
+        self.log.info("Joined channel %s" % (channel))
+
+    def privmsg(self, user, channel, msg):
+        nick = user.split("!")[0]
+
+        if channel == self.nickname:
+            channel = nick
+
+        host = user.split("!")[1]
+        host = host.split("@")[1]
+
+        ident = user.split("!")[1]
+        ident = ident.split("@")[0]
+        self.log.info("(%s) %s: %s" % (channel, user, msg))
+        if msg[0] == self.prefix:
+            if len(msg) > 1:
+                if msg.split()[0] != "!":
+                    self.parse(user, host, channel, msg[1:])
+
+    def noticed(self, user, channel, message):
+        nick = user.split("!")[0]
+        if channel == self.nickname:
+            channel = nick
+        # self.log.info("[%s] %s: %s" % (channel, user, message))
+
+
+class IRCBotFactory(protocol.ClientFactory):
+    def __init__(self):
+        self.log = Logger("irc")
+
+    def buildProtocol(self, addr):
+        prcol = IRCBot(self.log)
+        self.client = prcol
+        return prcol
+
+    def clientConnectionLost(self, connector, reason):
+        self.log.error("Lost connection (%s), reconnecting" % (reason))
+        connector.connect()
+
+    def clientConnectionFailed(self, connector, reason):
+        self.log.error("Could not connect: %s" % (reason))
+
+
+def bot():
+    context = ssl.DefaultOpenSSLContextFactory("./cert.pem", "./cert.pem")
+    factory = IRCBotFactory()
+    reactor.connectSSL(settings.IRC.Host, int(settings.IRC.Port), factory, context)
+    return factory