Sopel should keep track of its full hostmask

[freeboson]

Can we properly setup Sopel.say() to construct PRIVMSGs that will actually be at the 512 limit?

[dgw]

This is actually harder to do than it sounds. I'd like for Sopel to use the full line length available, too, but external factors can change an IRC user's hostname without notice: server-side mode changes, HostServ or similar being turned on/off, cloaking applied after NickServ authentication, etc.

Is there a reliable way to monitor for changes in one's own hostname that I'm unaware of? Happy to look into doing this if it's technically possible without a kludge like polling. 😸

As an aside, I've used multiple other IRC clients and frameworks that conservatively truncate (split) lines because they don't want to deal with tracking hostname changes either.

[dgw]

Sopel tracks its hostmask as of #1537, but this is left open for the "512 limit" piece—that is, making Sopel actually use the stored hostmask to send as much as possible.

[deathbybandaid]

Just going to leave this here in regards to how many bytes the hostmask takes, and how many bytes it could portentially take as error handling.

        try:
            hostmaskbytes = len((bot.users.get(bot.nick).hostmask).encode('utf-8'))
        except AttributeError:
            hostmaskbytes = (len((bot.nick).encode('utf-8'))  # Bot's NICKLEN
                             + 1  # (! separator)
                             + len('~')  # (for the optional ~ in user)
                             + 9  # max username length
                             + 1  # (@ separator)
                             + 63  # <hostname> has a maximum length of 63 characters.
                             )

[dgw]

@deathbybandaid In 7.x we have bot.hostmask, FYI.