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Introduction: Hacks #40-43
Logging is a natural function for
bots and clients alike. Many IRC clients offer
the ability to append messages to log files, and it is trivial to add
such features to a bot. The secret of effective logging is to work
out what you want to log and how people can access the information.
This provides some quite creative ideas that go beyond the simple
task of merely logging every message to a file.A bot that monitors all messages sent to a channel is effectively
monitoring the activity of all users in that channel. By providing an
interface that lets people talk to the bot, you can let them find out
when a particular user was last seen and what that user said in the
channel. This chapter shows you how to implement such a bot using the
PircBot package covered in Chapter 5.It is perhaps surprising to learn that bots can even be written in
shell scripts. This chapter shows you how to write a basic bot that
uses bash to connect to IRC and log all URLs
that it sees. Another bot written in Java can tell you what people
were talking about before you joined a channel, so you will never
feel as if you've blindly wandered into the middle
of a conversation.A more complicated example uses a Java bot to run a group blog,
logging URLs to a MySQL database. A web-based frontend then lets
people view the logged URLs.
