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Switching to ZNC on my Raspberry Pi

I’ve been following the #indieweb channel on IRC for a while now, sometimes more active than other times, and my several methods. In the beginning, I just read the logs on chat.indieweb.org, but when I wanted to say something I had to login with Textual.

Back in Amsterdam I had a bad internet connection (they probably tried to block IRC) so I wasn’t using it a lot. Then there was the bridged Slack channel, which I used intil my first HWC, where Martijn introduced me to thelounge. I installed it on a Raspberry Pi I had lying around and used that for quite a while, until I became inactive and shut the thing down.

Unfortunately I haven’t been able to make it work again after that, so I was in need of something else. Meanwhile I got used to Textual again, and I kind of liked that, except that it disconnected every time my laptop went to sleep.

Ok, so, ZNC you said?

Yeah, enough history! Let’s get to it. ZNC is an IRC bouncer, which connects to IRC for you. When you connect to ZNC, ZNC will give you all the messages it received since you where away. So accedentally closing your laptop? No worries, just open it and you receive all messages again.

You still need some computer to be online all the time, but I had that same Raspberry Pi (first edition model B), and it’s perfect for this job.

I first followed the installation instructions here, first downloading the latest source tarball, and following the unpacking and configuring described on that page. Later on, I had to use a different flag on configure, so I added that one here for you. I used the following commands in order:

wget https://znc.in/releases/znc-1.6.5.tar.gz
tar -xzvf znc-1.6.5.tar.gz
cd znc-1.6.5
./configure --enable-python
make
sudo make install

This all takes a while, especially the make part.

I then made sure I opened a port on my router towards my RPi, so I could access it from outside my home-network, when I’m on the go (look for the NAT settings in your router).

Extra modules

Then for extra modules. The webadmin was on, so I could just go to my home-IP + my new port, let’s say https://192.0.2.0:8000. I had SSL enabled and bad certificates, so you might need to trick your browser into accepting them. In the global modules, I enabled chansaver, lastseen and log. I also had notify_connect, but it felt too noisy for me. Don’t forget to hit the ‘save’ button.

In ‘Your Settings’ I have chansaver and controlpanel on, I believe by default.

For other module configuration I connected to ZNC using Textual. When you add it, you can give it a connection name (this is for yourself). The server address is your home IP, and the port the outside port you put in your router. The server password is the one you put in ZNC in the ./configure step. But then comes the part where I was puzzled: go from the ‘General’ to the ‘Identity’ view, and add your Freenode IRC nickname as ‘Nickname’, but your ZNC username as Username. I used sebsel@Mac/freenode, to identify it later. The personal password is for the NickServ password on Freenode.


After connecting I did /msg *simple_away SetTimer 0, because I want to be set to away the moment all my devices are disconnected from ZNC.

Because I want to have Textual on my Mac, and this new-found Mutter on my iPhone, I have to get ZNC to manage multiple clients. By default, ZNC sees you have read your messages on your iPhone, so it does not send it to your Mac. To keep track of multiple clients, you need the ClientBuffer module.

Since I still had the source, I could just compile the module. So I did:

cd ~/znc-1.6.5/modules/
wget https://github.com/jpnurmi/znc-clientbuffer/blob/master/clientbuffer.cpp
cd ~/znc-1.6.5/
make
sudo make install

After that, I got back to Textual, and did /msg *status LoadMod clientbuffer. After that, you can /msg *clientbuffer help and send *clientbuffer some commands as messages. I did AddClient Mac and AddClient iPhone. You can do a ListClients too to see what you got.

Adding Mutter to the game

On the iPhone app Mutter, I added a network with again my home IP as the server, my nickname sebsel and under Advanced use the port I opened, added the password of ZNC in the first password field. The ‘username’ under Advanced gets the username for ZNC, so I made it sebsel@iPhone/freenode, to let Clientbuffer identify it as my iPhone. If you have notify_connect on you will see that *status notifies you about logging in with your iPhone.

Warning: I didn’t get this next part to work

Next I saw that there is an option to receive notifications from ZNC to your iPhone via Mutter. You will need their mutter-push module for that, and that requires ModPython, so that’s why I added the flag --enable-python during the first make.

As their explanation says, first grab the mutter package, then make sure you got the right python libs, and then move mutter.py to ~/.znc/modules/.

cd ~
wget https://bitbucket.org/jmclough/mutter-push/get/master.zip
unzip -d mutter -j master.zip
cd mutter
sudo apt-get install python3-pip
sudo pip3 install requests
cp mutter.py ~/.znc/modules/

In IRC, make sure to /znc loadmod modpython and then /znc loadmod mutter (or send a message to *status with loadmod modpython etc.).

This last part of getting notifications is still not working for me. I still wanted to post this though, because all the other things work. Hope I’ll get back to notifications soon, when I do get them to work.

Daily and monthly overviews

This weekend I worked on some things on Seblog, and since I did some productive work on other projects today, I feel like I can write a blogpost about it without sounding so procrastinating.

Inspired by Aaron Parecki's monthly overviews, and triggered by @zegnat, who was looking for the same type of page on my site, I started to 'deconstruct' my URLs. You can now remove parts of it and still get useful pages. That was on my list of itches since november 2015 now.

So let me explain my URL design first. This post, for example, is /2017/06/20/1/daily-and-monthly-overviews. This is an idea I got from the wiki, and probably also originates with Aaron. The identifying part of it is the date, followed by an ID (the nth post of that day). The slug is just for humans and can be omitted: you will get redirected to the right one. Some posts don't even have one. This allows for a Whistle-style URL shortener which I run at 5eb.nl. (This post can be found through 5eb.nl/4ox1.)


The first step was to remove the ID, to get to a day view. I just list all the posts that are created on that day, including private posts when I'm logged in, but oldest-first instead of the newest-first order of my feeds. I also display a summary of the day in icons at the top. I'm really pleased with how it turned out!

After that, I also wanted the monthly view, to get a better overview. I'm really pleased with that too, it's nice to go through my old posts this way, seeing old memories. I'm now more interested in importing my Facebook posts too. I am still looking for a way to have some anchor or summary of the day in my monthly view, to find posts quicker, and adding a location like Aaron might do the trick, but I'll have to figure out how to do that still :)

I'm quite happy with this for now!

@-mentioning people on my blog

The past week I mentioned both Martijn and the Twitter-account of the Dutch Railways (@ns_online) in different blogposts. For Martijn, I used a hand-written link with the proper .u-category.h-card classes to person-tag him. [see update below] For @NS_online, I wanted to @-mention them in the POSSE'd tweet. Martijn complained that my blog didn't autolink them, so that's what I fixed now.


I have a new syntax to @-mention (and thus tag) people in my blogposts.

  • I want to match names like @name
  • I don't want to match the word @-mention itself.
  • I want to be able to escape the @-mention with a \, like \@name, so I can talk about @-mentions in a blogposts (this one, actually, I like meta-meta-meta).

Then the syntax. Obviously I use an @-symbol, with a name behind it. I then check the name for the following:

  • Is the name on my list of names? Then use the URL I provided.
  • Does the name contain a dot? Then assume it's a domain / URL itself, so add replace @ with http:// (@seblog.nl becomes <a href="https://seblog.nl/">Sebastiaan Andeweg</a>)
  • And if it doesn't contain a dot, assume it's a Twitter account.

I then fetch the h-card (or profile information) from the resulting URL, and use the name that's there.


There are times, however, where I want to specify the name. In the example at the beginning of this post, I called Martijn 'Martijn', not 'Martijn van der Ven', which is on is h-card. Sometimes a full name makes no sense. So I can add the name I want to use in brackets behind the tag (@Zegnat[Martijn]). This way I have total control over my text (and possible conjugations if I start writing in a language that needs those, not that I speak one).

Then it all comes down to the following syntax:

@namefromcache        > the URL I specified
@someone.com          > that URL
@facebook.com/someone > also the literal URL
@twitteruser          > their Twitter profile URL
@someone[This Person] > my own name for them
\@someone             > escaped tag

I now need to redo my automated webmention-sending, for it does not yet recognise these tags. Manual sending works fine!


Edit: after some discussion during the Virtual HWC EU-time, I realised that just doing @someone is not really person-tagging them. Person tagging is explicitly saying "I am now with this person", which makes sense for photos and checkins, but not always in blogposts.

I added a minor tweak: I can now use + instead of @ to really person-tag someone. The @ is used for just a mention, the +-mention will receive the class="u-category h-card" markup. I don't know how much I will be using that, but I have that option now.

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Ik had Martijn beloofd iets homo-erotisch op Facebook te schrijven zodat hij de nieuwe regenboog-reacji kon testen, maar ik wist niets, dus deel ik hierbij een golden oldie.