From 97a73c931a145b84492da2649fd9c12063f9a2cf Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Sat, 20 Aug 2011 23:42:38 +0200
Subject: Add optional logging of channels

---
 miniircd | 44 ++++++++++++++++++++++++++++++++++++--------
 1 file changed, 36 insertions(+), 8 deletions(-)

diff --git a/miniircd b/miniircd
index 3764727..ab306a3 100755
--- a/miniircd
+++ b/miniircd
@@ -29,6 +29,7 @@ import string
 import sys
 import re
 import time
+from datetime import datetime
 from optparse import OptionParser
 
 
@@ -178,11 +179,12 @@ class Client(object):
                 self.reply_461("JOIN")
                 return
             if arguments[0] == "0":
-                for channelname, channel in self.channels.items():
+                for (channelname, channel) in self.channels.items():
                     self.message_channel(
                         channel,
                         ":%s PART %s" % (self.prefix, channelname),
                         True)
+                    self.channel_log(channel, "left", meta=True)
                     server.remove_member_from_channel(self, channelname)
                 self.channels = {}
             else:
@@ -200,6 +202,7 @@ class Client(object):
                             channel,
                             ":%s JOIN %s" % (self.prefix, channelname),
                             True)
+                        self.channel_log(channel, "joined", meta=True)
                         if channel.topic:
                             self.reply(
                                 "332 %s %s :%s"
@@ -272,6 +275,9 @@ class Client(object):
                 self.reply("432 %s %s :Erroneous Nickname"
                            % (self.nickname, newnick))
             else:
+                for x in self.channels.values():
+                    self.channel_log(
+                        x, "changed nickname to %s" % newnick, meta=True)
                 oldnickname = self.nickname
                 self.nickname = newnick
                 server.client_changed_nickname(self, oldnickname)
@@ -304,11 +310,9 @@ class Client(object):
                 if channel:
                     self.message_channel(
                         channel,
-                        ":%s %s %s :%s" % (
-                            self.prefix,
-                            command,
-                            channel.name,
-                            message))
+                        ":%s %s %s :%s"
+                        % (self.prefix, command, channel.name, message))
+                    self.channel_log(channel, message)
                 else:
                     self.reply("401 %s %s :No such nick/channel"
                                % (self.nickname, targetname))
@@ -337,6 +341,7 @@ class Client(object):
                             channelname,
                             partmsg),
                         True)
+                    self.channel_log(channel, "left (%s)" % partmsg, meta=True)
                     del self.channels[irc_lower(channelname)]
                     server.remove_member_from_channel(self, channelname)
 
@@ -373,6 +378,8 @@ class Client(object):
                             channelname,
                             newtopic),
                         True)
+                    self.channel_log(
+                        channel, "set topic to %r" % newtopic, meta=True)
                 else:
                     if channel.topic:
                         self.reply("332 %s %s :%s"
@@ -493,6 +500,19 @@ class Client(object):
             if client != self or include_self:
                 client.message(line)
 
+    def channel_log(self, channel, message, meta=False):
+        if not self.server.logdir:
+            return
+        if meta:
+            format = "[%s] * %s %s\n"
+        else:
+            format = "[%s] <%s> %s\n"
+        timestamp = datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S UTC")
+        logname = channel.name.replace("_", "__").replace("/", "_")
+        fp = open("%s/%s.log" % (self.server.logdir, logname), "a")
+        fp.write(format % (timestamp, self.nickname, message))
+        fp.close()
+
     def message_related(self, msg, include_self=False):
         clients = set()
         if include_self:
@@ -522,10 +542,13 @@ class Server(object):
         self.motdfile = options.motd
         self.verbose = options.verbose
         self.debug = options.debug
+        self.logdir = options.logdir
         self.name = socket.getfqdn()[:63]  # Server name limit from the RFC.
         self.channels = {}  # irc_lower(Channel name) --> Channel instance.
         self.clients = {}  # Socket --> Client instance.
         self.nicknames = {}  # irc_lower(Nickname) --> Client instance.
+        if self.logdir and not os.path.isdir(self.logdir):
+            os.makedirs(self.logdir)
 
     def daemonize(self):
         try:
@@ -595,8 +618,9 @@ class Server(object):
 
     def remove_client(self, client, quitmsg):
         client.message_related(":%s QUIT :%s" % (client.prefix, quitmsg))
-        for chan in client.channels.values():
-            chan.remove_client(client)
+        for x in client.channels.values():
+            client.channel_log(x, "quit (%s)" % quitmsg, meta=True)
+            x.remove_client(client)
         if client.nickname \
                and irc_lower(client.nickname) in self.nicknames:
             del self.nicknames[irc_lower(client.nickname)]
@@ -666,6 +690,10 @@ def main(argv):
         "--debug",
         action="store_true",
         help="print debug messages to stdout")
+    op.add_option(
+        "--logdir",
+        metavar="X",
+        help="store channel log in directory X")
     op.add_option(
         "--motd",
         metavar="X",
-- 
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