Marty McGuire

Archive for July 2022

Sun Jul 31

Switching costs for an IndieAuth server

One of the things I love about building with IndieWeb building blocks is that (sometimes through more work than anticipated) you can swap out pieces of your site without (much) disruption because the seams between building blocks are well specified.

So, this is me documenting how I replaced my IndieAuth setup to stop leaning on Aaron’s (which has been on the verge of retiring any day now for some years).

Please excuse this long and rambling post. Feel free to skip around!

What is IndieAuth?

At a high-level, IndieAuth is a way to sign in using your website as an identity.

Without digging too deeply into the plumbing, you start by updating your website’s homepage with some extra header info that says “my IndieAuth service is over there”. From there, you can sign into services that support IndieAuth (like the IndieWeb wiki, the social feed reader service Aperture, and more. And you can use your IndieAuth server to protect your own services, such as a Micropub server that can create new posts on your site.

Why switch?

I’ve been using as my IndieAuth setup since late 2016 because it was easy to set up, because it uses something called RelMeAuth to let me sign in using services I already trust (like GitHub).

However, has been growing stale as the IndieAuth spec has evolved.’s maintainer has been discussing replacing it since at least 2017.

The inciting incident for my switch was looking at OwnCast - a self-hostable video streaming service with attached chatroom. OwnCast’s chat allows using IndieAuth to sign in, which sounded great to me, but OwnCast’s implementation wasn’t expecting’s old-style response format.

Why set up my own?

There are a bunch of IndieAuth server implementations listed on the IndieWeb wiki. However: simplest of them (selfauth + mintoken) are now out of date with the spec and haven’t been replaced, yet. Others tend to be built into other CMSes like WordPress. A couple of standalone servers exist but are in languages I am not comfortable working in (hello Rust and Go) or have deployment requirements I wasn’t thrilled about supporting (hello Rails).

I found Taproot/IndieAuth on this page and that looked promising - a PHP library intended to be deployed within a fairly standard PHP web app style (“any PSR-7 compatible app”).

I knew this would be some work but it sounded promising and so I began the week-ish long process of actually writing and deploying that “PSR-7 compatible app” built on taproot/indieauth.

tl;dr say hello to Belding

Belding is an “PSR-7 compatible” PHP web app that provides a standalone IndieAuth endpoint for a single user with a simple password form for authentication.

I would love to go into the process and pitfalls of putting it together, but instead I’ll link to the README where you can learn more about how it works, how to use it, its limitations, etc.

Switching costs for an IndieAuth server

1. Tell the World

First up, you’ll need to update the headers on your site. I switched my authorization_endpoint and token_endpoint to my new server from Since I’m updating to support the latest spec, I also added the indieauth-metadata header (which should eventually replace the other two).

Now that your site is advertising the new IndieAuth server, you will likely experience logouts or weird access denied reponses everywhere that your site has been used with IndieAuth.

2. Tell your own services

I needed to configure my own “relying apps” so they know to talk to the new server when checking that a request is allowed. This list thankfully wasn’t too long.

Beyond the effort of getting my server working as an replacement, I also took steps to try and support the latest in the IndieAuth spec. That meant updating these micropub servers to use the new “token introspection” feature which has some tighter security requirements.

(Note: I initially made the same change for my self-hosted copy of Aperture, but found it would be too many changes for me to take on at the moment. Instead, I updated by IndieAuth server to allow the older and less secure token verification method used by Aperture.)

3. Sign-in to all the things again \o|

Once all my relying apps were all talking to the new IndieAuth server, it was time to re-sign-in to all the things:


There are a lot of improvements I’d like to make to Belding, but in general I am happy that it seems to work and, outside of the time to develop the server itself, my website and the tools I use to manage it were only broken for about a day.

I think it’d also be really nice to wrap up Belding a bit so it’s easy to configure and deploy on free-and-cheap platforms like I believe it should be easier for folks to spin up and control their own IndieWeb building blocks where possible!

It’s also become clear to me that there are some user- and developer-experience holes around setting up relying apps. The auth requirements for token introspection, for example, means you need a way to manage access for each “backend” that you have that relies on IndieAuth to protect itself!

Long story short (too late) I am finally able to sign into OwnCast server chat using my domain. 😂😅

Are you getting your reps in during eternal Caturday?

Sat Jul 30

Are you putting in the effort during eternal Caturday?

Fri Jul 29

Are you excited to be here during eternal Caturday?

Thu Jul 28

Are you letting go of tension during eternal Caturday?

Wed Jul 27

Are you social loafing during eternal Caturday?

Tue Jul 26
📗 Want to read Chokepoint Capitalism: How Big Tech and Big Content Captured Creative Labor Markets and How We'll Win Them Back by Rebecca Giblin ISBN: 9780807007068
📗 Want to read A Half-Built Garden by Ruthanna Emrys

Are you watching with anticipation during eternal Caturday?

Mon Jul 25
📗 Want to read Lord of Light by Roger Zelazny ISBN: 9780060567231
🔖 Bookmarked HOPE 2022 Resources

Are you cooling off in the pool during eternal Caturday?

Sun Jul 24

Are you operating on multiple levels during eternal Caturday?

Sat Jul 23

Has the situation turned during eternal Caturday?

Fri Jul 22

Are you exerting control during eternal Caturday?

Thu Jul 21

Are you welcoming something new during eternal Caturday?

Wed Jul 20

Are you trying to keep sharp during eternal Caturday?

Tue Jul 19

Have you discovered a new comfortable spot during eternal Caturday?

Mon Jul 18

Are you showing your attentive side during eternal Caturday?

Sun Jul 17

Are you serious about taking it easy during eternal Caturday?

Sat Jul 16

Are you focused on your breath during eternal Caturday?

Fri Jul 15

Are you extending yourself during eternal Caturday?

Thu Jul 14

Are you checking for secure connections during eternal Caturday?

Wed Jul 13

Are you cleaning your plate during eternal Caturday?

Tue Jul 12

How much of you is hidden away during eternal Caturday?

Mon Jul 11
Map tiles © Stadia Maps © Stamen Design © OpenMapTiles © OpenStreetMap contributors.
📍 Checked in at Three of Cups, New York, NY.

Are you achieving stillness during eternal Caturday?

Sun Jul 10

Do you wonder where the time has gone during eternal Caturday?

Sat Jul 9

How do you handle an interruption during eternal Caturday?

Fri Jul 8

Do you have a funny taste in your mouth during eternal Caturday?

Thu Jul 7
Map tiles © Stadia Maps © Stamen Design © OpenMapTiles © OpenStreetMap contributors.
📍 Checked in at Swift Hibernian Lounge, New York, NY.
Map tiles © Stadia Maps © Stamen Design © OpenMapTiles © OpenStreetMap contributors.
📍 Checked in at Otto's Shrunken Head, New York, NY.

Most magical blender??

Map tiles © Stadia Maps © Stamen Design © OpenMapTiles © OpenStreetMap contributors.
📍 Checked in at Stuyvesant Oval Fountain, New York, NY.
Map tiles © Stadia Maps © Stamen Design © OpenMapTiles © OpenStreetMap contributors.
📍 Checked in at Westville East, New York, NY.

Is it your turn to work the dough during eternal Caturday?

Wed Jul 6

Are you desperate to make contact during eternal Caturday?

Tue Jul 5

Are you reorienting yourself during eternal Caturday?

Mon Jul 4
📕 Finished reading The Year Under the Machine by Peter Danielsson ISBN: 9789152702864

Are you keeping up with outside events during eternal Caturday?

Sun Jul 3

Are you tired and/or screaming during eternal Caturday?

Sat Jul 2

Have you found yourself in a mess during eternal Caturday?

Fri Jul 1

Are you sending secret signals during eternal Caturday?