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5.mdwn

[[!template id=ticket class=task assigned=fr33domlover done=yes]] [[!tag /projects/funbot/ideas]]

[[!meta title=“Detect which users are online”]]

[[!template id=ticket-depends-on proj=irc-fun-messages n=1]] (reply analysis support)

Issue

When sending a message for a user, the bot should be able to check if the user is online, and keep it for later if not. So two things are useful:

1. Get a list of users in a channel
2. Check if a given user is online

Perhaps tracking JOINs/PARTs can help. Or perhaps there are better ways.

Various features can then be built on top of this functionality.

Process

I went over the IRC command list in Wikipedia, and I found the following ways to track users in a channel and online users in general:

• When JOINing a channel, part of the reply lists the users in it
• Every JOIN and PART in the joined channels is received by the bot
• The NAMES command lists the members of one or more channels
• The ISON command checks which users from a given user list are online

–[[fr33domlover]]

Result

ISON isn’t implemented currently, but managing user lists works as follows:

• There’s a user list per channel in the bot state (yeah, it isn’t empty anymore)
• Joining a channel triggers NAMREPLY from the server, which is parsed into the Names bot event, whose handler gets the channel’s list filled
• JOINs, PARTs and QUITs trigger list updates

–[[fr33domlover]]