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13. Juli 2018

VR Map - A-Frame Demo using OpenStreetMap Data

As I mentioned previously, the Mixed Reality "virus" has caught me recently and I spend a good portion of my Mozilla contribution time with presenting and writing demos for WebVR/XR nowadays.

The prime driver for writing my first such demo was that I wanted to do something meaningful with A-Frame. Previously, I had only played around with the Hello WebVR example and some small alterations around the basic elements seen in that one, which is also pretty much what I taught to others in the WebVR workshops I held in Vienna last year. Now, it was time to go beyond that, and as I had recently bought a HTC Vive, I wanted something where the controllers could be used - but still something that would fall back nicely and be usable in 2D mode on a desktop browser or even mobile screens.

While I was thinking about what I could work on in that area, another long-standing thought crossed my mind: How feasible is it to render OpenStreetMap (OSM) data in 3D using WebVR and A-Frame? I decided to try and find out.

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First, I built on my knowledge from Lantea Maps and the fact that I had a tile cache server set up for that, and created a layer of a certain set of tiles on the ground to for the base. That brought me to a number of issue to think about and make decisions on: First, should I respect the curvature of the earth, possibly put the tiles and the viewer on a certain place on a virtual globe? Should I respect the terrain, especially the elevation of different points on the map? Also, as the VR scene relates to real-world sizes of objects, how large is a map tile actually in reality? After a lot of thinking, I decided that this would be a simple demo so I would assume the earth is flat - both in terms of curvature or "the globe" and terrain, and the viewer would start off at coordinates 0/0/0 with x and z coordinates being horizontal and y the vertical component, as usual in A-Frame scenes. For the tile size, I found that with OpenStreetMap using Mercator projection, the tiles always stayed squares, with different sizes based on the latitude (and zoom level, but I always use the same high zoom there). In this respect, I still had to take account of the real world being a globe.

Once I had those tiles rendering on the ground, I could think about navigation and I added teleport controls, later also movement controls to fly through the scene. With W/A/S/D keys on the desktop (and later the fly controls), it was possible to "fly" underneath the ground, which was awkward, so I wrote a very simple "position-limit" A-Frame control later on, which prohibits that and also is a very nice example for how to build a component, because it's short and easy to understand.

All this isn't using OSM data per se, but just the pre-rendered tiles, so it was time to go one step further and dig into the Overpass API, which allows to query and retrieve raw geo data from OSM. With Overpass Turbo I could try out and adjust the queries I wanted to use ad then move those into my code. I decided the first exercise would be to get something that is a point on the map, a single "node" in OSM speak, and when looking at rendered maps, I found that trees seemed to fit that requirement very well. An Overpass query for "node[natural=tree]" later and some massaging the result into a format that JavaScript can nicely work with, I was able to place three-dimensional A-Frame entities in the places where the tiles had the symbols for trees! I started with simple brown cylinders for the trunks, then placed a sphere on top of them as the crown, later got fancy by evaluating various "tags" in the data to render accurate height, crown diameter, trunk circumference and even a different base model for needle-leaved trees, using a cone for the crown.

But to make the demo really look like a map, it of course needed buildings to be rendered as well. Those are more complex, as even the simpler buildings are "ways" with a variable amount of "nodes", and the more complex ones have holes in their base shape and therefore require a compound (or "relation" in OSM speak) of multiple "ways", for the outer shape and the inner holes. And then, the 2D shape given by those properties needs to be extruded to a certain height to form an actual 3D building. After finding the right Overpass query, I realized it would be best to create my own "building" geometry in A-Frame, which would get the inner and outer paths as well as the height as parameters. In the code for that, I used the THREE.js library underlying A-Frame to create a shape (potentially with holes), extrude it to the right height and rotate it to actually stand on the ground. Then I used code similar to what I had for trees to actually create A-Frame entities that had that custom geometry. For the height, I would use the explicit tags in the OSM database, estimate from its levels/floors if given or else fall back to a default. And I would even respect the color of the building if there was a tag specifying it.

With that in place, I had a pretty nice demo that uses data directly from OpenStreetMap to render Virtual Reality scenes that could be viewed in the desktop or mobile browser, or even in a full VR headset!

It's available under the name of "VR Map" at vrmap.kairo.at, and of course the source code can also be expected, copied and forked on GitHub.

Image No. 23343

Again, this is intended as a demo, not a full-featured product, and e.g. does at this time only render an area of a defined size and does not include any code to load additional scenery as you are moving around. Also, it does not support "building parts", which are the way to specify in OSM that a different pieces of a building have e.g. different heights or colors. It could also be extended to actually render models of the buildings when they exist and are referred in the database (so e.g. the Eiffel Tower would look less weird when going to the Paris preset). There are a lot of things that still can be done to improve on this demo for sure, but as it stands, it's a pretty simple piece of code that shows the power of both A-Frame and the OpenStreetMap data, and that's what I set out to do, after all.

My plan is to take this to multiple meetups and conferences to promote both underlying projects and get people inspired to think about what they can do with those ideas. Please let me know if you know of a good event where I can present this work. The first of those presentations happened a at the ViennaJS May Meetup, see the slides and video.
I'm also in an email conversation with another OSM contributor who is using this demo as a base for some of his work, e.g. on rendering building models in 3D and VR and allowing people to correct their position data.

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I hope that this demo spawns more ideas of what people can do with this toolset, and I'll also be looking into more demos that will probably move into different directions. :)

Von KaiRo, um 23:28 | Tags: A-Frame, Mixed Reality, Mozilla, OSM, VR Maps, WebVR, WebXR | keine Kommentare | TrackBack: 1

11. Juli 2018

My Journey to Tech Speaking about WebVR/XR

Ever since a close encounter with burning out (thankfully, I didn't quite get there) forced me to leave my job with Mozilla more than two years ago, I have been looking for a place and role that feels good for me in the Mozilla community. I immediately signed up to join Tech Speakers as I always loved talking about Mozilla tech topics and after all breaking down complicated content and communicating it to different groups is probably my biggest strength - but finding the topics I want to present at conferences and other events has been a somewhat harder journey.

I knew I had to keep my distance to crash stats, despite knowing the area in and out and having developed some passion for it, but staying in the same area as a volunteer than in a job that almost burned me out was just not a good idea, from multiple points of view. I thought about building up some talks about working with data but it still was a bit too close to that past and not what I presently do a lot (I work in blockchain technology mostly today), so that didn't go far (but maybe it will happen at some point).
On the other hand, I got more and more interested in some things the Open Innovation group at Mozilla was doing, and even more in what the Emerging Technologies teams bring into the Mozilla and web sphere. My talk (slides) at this year's local "Linuxwochen Wien" conference was a very quick run-through of what's going on there and it's a whole stack of awesomeness, from Mixed Reality via codecs, Rust, Voice and whatnot to IoT. I would love to dig a bit into the latter but I didn't yet find the time.

What I did find some time for is digging into WebVR (now WebXR, where "XR" means "Mixed Reality") and the A-Frame library that Mozilla has created to make it dead simple to create your own VR/XR experiences. Last year I did two workshops in Vienna on that area, another one this year and I'm planning more of them. It's great how people with just some HTML knowledge can build something easily there as well as people who are more into JS programming, who can dig even deeper. And the immersiveness of VR with a real headset blows people away again and again in any case, so a good thing to show off.

While last year I only had cardboards with some left-over Sony Z3C phones (thanks to Mozilla) to show some basic 3DoF (rotation only) VR with low resolution, this proved to be interesting already to people I presented to or made workshops with. Now, this year I decided to buy a HTC Vive, seeing its price go down somewhat before the next generation of headsets would be shipped. (As a side note, I chose the Vive over the Rift because of Linux drivers being available and because I don't want to give money to Facebook.) Along with a new laptop with a high-end GPU that can drive the VR headset, I got into fully immersive 6DoF VR and, I have to say, got somewhat addicted to the experience. ;-)

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I ran a demo booth with A-Painter at "Linuxwochen Wien" in May, and people were both awed at the VR experience and that this was all running in plain Firefox! Spreading the word about new web technologies can be really fun and rewarding with experiences like that! Next to showing demos and using VR myself, I also got into building WebVR/XR demos myself (I'm more the person to do demos and prototypes and spread the word, rather than building long-lasting products) - but I'll leave that to another blog post that will be upcoming very soon! :)

So, for the moment, I have found a place I feel very comfortable with in the community, doing demos and presentations about WebVR or "Mixed Reality" (still need to dig into AR but I don't have fitting hardware for that yet) as well as giving people and overview of the Emerging Technologies "we" (MoCo and the Mozilla community) are bringing to the web, and trying to make people excited and use the technologies or hopefully even contribute to them. Being at the forefront of innovation for once feels really good, I hope it lasts long!

Von KaiRo, um 21:41 | Tags: A-Frame, Emerging Technologies, Mixed Reality, Mozilla, VR Maps, WebVR, WebXR | keine Kommentare | TrackBack: 1

22. Jänner 2018

Lantea Maps Updates to Track Saving and Drawing

After my last post on Lantea Maps (my web app to record GPS tracks), I started working on some improvements to its code.

First, I created a new backend for storing GPS tracks on my servers and integrated it into the web app. You need to log in via my own OAuth2 server, and then you can upload tracks fairly seamlessly and nicely.
The UI for uploading is now also fully integrated into the track "drawer" which should make uploading tracks a smoother experience than previously. And as a helpful feature for people who use Lantea Maps on multiple devices, a device name can be configured via the settings "drawer".

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The saved tracks are listed in the new library view (also accessible for the track "drawer" when logged in) and linked to a GPX file to download download - that way the recorded and uploaded tracks can be accessed from a different device and downloaded to there. The library UI has a lot of potential for improvement but this first version has been working decently for me for a while now in testing.

In addition, the first piece of new PWA (Progressive Web Apps) technology has been integrated: Due to the W3C Manifest, you can now add Lantea Maps to your home screen from browsers like Firefox for Android.

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Even more, I optimized the code drawing the GPS tracks so that off-screen segments aren't drawn, even though I'm unsure how to measure drawing and panning speed, so I can't put actual numbers behind what that work may have helped or not - but I hope it improved performance when large tracks are loaded.

To round up all the work, I added a welcome and an update information screen to be able to tell people both how to initially use the app and what changed on updates.

This is a spare time project so I'm doing updates very irregularly but I'm using the app myself almost daily so it should continue to be maintained in the future as time and motivation allow. :)

Von KaiRo, um 00:52 | Tags: Android, Lantea, Mozilla, OSM, PWA, Web Apps | keine Kommentare | TrackBack: 1

20. August 2017

Celebrating LCARS With One Last Theme Release

30 years ago, a lot of people were wondering what the new Star Trek: The Next Generation series would bring when it would debut in September 1987. The principal cast had been announced, as well as having a new Enterprise and even the pilot's title was known, but - as always with a new production - a lot of questions were open, just like today in 2017 with Star Trek Discovery, which is set to debut in September almost to the day on the 30th anniversary of The Next Generation.

Given that the story was set to play 100 years after the original and what was considered "futuristic" had significantly changed between the late 1960s and 1980s, the design language had to be significantly updated, including the labels and screens on the new Enterprise. Scenic art supervisor and technical consultant Michael Okuda, who had done starship computer displays for The Voyage Home, was hired to do those for the new series, and was instructed by series creator and show runner Gene Roddenberry that this futuristic ship should have "simple and clean" screens and not much animation (the latter probably also due to budget and technology constraints - the "screens" were built out of colored plexiglass with lights behind them).



With that, Okuda created a look that became known as "LCARS" (for Library Computer Access and Retrieval System (which actually was the computer system's name). Instead of the huge gray panels with big brightly-colored physical buttons in the original series, The Next Generation had touch-screen panels with dark background and flat-style buttons in pastel color tones. The flat design including the fonts and flat-design frames are very similar to quite a few designs we see on touch-friendly mobile apps 30 years later. Touch screens (and even cell phones and tablets) were pretty much unheard of and "future talk" when Mike Okuda created those designs, but he came to pretty similar design conclusions as those who design UIs for modern touch-screen devices (which is pretty awesome when you think of it).

I was always fascinated with that style of UI design even on non-touch displays (and am even more so now that I'm using touch screens daily), and so 18 years ago, when I did my first experiments with Mozilla's new browser-mail all-in-one package and realized that the UI was displayed with the same rendering engine and the same or very similar technologies as websites, I immediately did some CSS changes to see if I could apply LCARS-like styling to this software - and awesomeness ensued when I found out that it worked!

Image No. 23114

Over the years, I created a full LCARStrek theme from those experiments (first release, 0.1, was for Mozilla suite nightlies in late 2000), adapted it to Firefox (starting with LCRStrek 2.1 for Firefox 4), refined it and even made it work with large Firefox redesigns. But as you may have heard, huge changes are coming to Firefox add-ons, and full-blown themes in a manner of LCARStrek cannot be done in the new world as it stands right now, so I'm forced to stop developing this theme.

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Given that LCARS has a huge anniversary this year, I want to end my work on this theme on a high instead of a too sad a note though, so right along the very awesome Star Trek Las Vegas convention, which just celebrated 30 years of The Next Generation, of course, I'm doing one last LCARStrek release this weekend, with special thanks to Mike Okuda, whose great designs made this theme possible in the first place (picture taken by myself at that convention just two weeks ago, where he was talking about the backlit LCARS panels that were dubbed "Okudagrams" by other crew members):
Image No. 23314

Live long and prosper!

Von KaiRo, um 00:21 | Tags: Firefox, LCARStrek, Mozilla, SeaMonkey, Star Trek, themes | 5 Kommentare | TrackBack: 0

19. August 2017

Lantea Maps: GPS Track Upload to OpenStreetMap Broken

During my holidays, when I was using Lantea Maps daily to record my GPS tracks, I suddenly found out one day that upload of the tracks to OpenStreetMap was broken.

I had added that functionality so that people (including myself) could get their GPS tracks out of their mobile devices and into a place from which they can download them anywhere. A bonus was that the tracks were available to the OpenStreetMap project as guides to improve the maps.

After I had wasted about EUR 50 of data roaming costs to verify that it was not only broken on hotel networks but also my mobile network that usually worked, I tried on a desktop Nightly and used the Firefox devtools to find out the actual error message, which was a CORS issue. I filed a GitHub issue but apparently it was an intentional change and OpenStreetMap doesn't support GPS track uploads any more in a way that is simple for pure web apps and also doesn't want to re-add support for that. Find more details in the GitHub issue.

Because of that, I think that this will mark the end of uploading tracks from Lantea Maps to OpenStreetMap. When I have time, I will probably add a GPS track store on my server instead, where third-party changes can't break stuff while I'm on vacation. If any Lantea Maps user wants their tracks on OpenStreetMap in the future, they'll need to manually upload the tracks themselves.

Von KaiRo, um 16:49 | Tags: Lantea, Mozilla, OSM, Web Apps | keine Kommentare | TrackBack: 0

7. Mai 2017

Representing Mozilla at Linuxwochen Wien 2017

Linuxwochen ("Linux weeks") is a yearly series of Free & Open Source Software events/conferences in Austrian cities, organized by the respective local FLOSS communities but marketed via a common name and website. They commonly take place spread out over several weekends in April and May, with the largest one, Linuxwochen Wien, in Austria's capital of Vienna, on a Thursday through Saturday in early May. In this year's edition, from May 4-6, the Mozilla community was present there once again (like two years ago) with a booth, talks and a workshop.

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While in 2015, the main topic at the Mozilla booth and workshop was Firefox OS, having a large 4K TV from Panasonic to show off and get people involved, things have changed a lot after sitting out a year (which happened due to me moving to a new condo at that time and as the sole Rep in the area being the one who needs to organize events like this presence).
This year, I was focusing on A-Frame (and therefore WebVR), both with the booth and the workshop. In addition, we could provide a talk by Dragana from Mozilla's network platform team about HTTP/2 and QUIC and I reprised my FOSDEM talk on web logins, this time in German. While the whole conference probably has a few hundred to a thousand visitors (hard to estimate when entrance is free and there are several parallel tracks), I probably got to talk to between several dozen and a hundred people at the booth, my workshop and talk both had 10-15 attendees, and Dragana's talk about 20-30. The conference overall has a bit of a family feel to it, attracting a decent amount of people but it's definitely not really large either. A lot of the attendees are pretty technical and already in the FLOSS scene in one way or another, but as it's happening on a technical college, we also get some of their students who may not be involved with that larger community - and then there are some casual visitors but they're probably rare.

Image No. 23310


At our booth, next to the takeaway collection of Firefox stickers and tatoos as well as Mozilla wristbands, I put up some printouts of the new logo and related artwork as decoration, and on the glass wall behind the booth, a big poster with a German variant of "doing good is part of our code" and the Firefox log as well as printouts of website screenshots depicting the variety of what's going on at Mozilla nowadays - from mozilla.org, Campus Clubs, Internet Health Report, and changecopyright.org via Rust, Servo, WebAssembly, CSS Grid, and A-Frame to Pocket and Let's Encrypt - of course all with big and visible URLs. On top of that, I had my laptop on the booth, running the Snowglobe example of A-Frame, as well as a few Cardboards and Z3C phones with the Museum example and a 360° image loaded and ready to show. On the laptop, I had the source code of the Hello WebVR on Glitch and a live view of that ready in additional tabs for explanations.

That setup ended up working very well - the always-moving snowglobe and the cardboards proved to be good eye-catchers and starting points for talking to people coming by. I had them look at the museum with the cardboard (nice because it's quite detailed and you can even "walk" around by staring at the yellow dots on the floor that you get on mobile) and told people how that was all running in the browser, and how Mozilla pioneered WebVR, which now is an open standard, and did the A-Frame library, that those demos are written in, and which makes it really easy to write VR scenes yourself, which led to showing them the Hello WebVR scene and its source code - often changing a color to show that it's really that easy. I later also added an <a-text> saying "Linuxwochen Wien" to that scene, when someone asked about text. A lot of "wow"s were heard, and many people noted down the aframe.io URL (which I should have had better visible somewhere) and/or had more questions, e.g. on using objects from 3D modeling software (you can, there are components for Collada, GLTF, and other formats), use cases outside of demos and games, device support (which I often had mentioned when talking about WebVR itself) and prices, which phones work with cardboard, how to get cardboards (I could have sold a few there), and more. All in all, WebVR and A-Frame peeked a real lot of interest.

Image No. 23311
Of course, questions outside of WebVR came up: "Mozilla has been killing so many things lately, what is the project actually working on now?" (leading to talk about a lot of the websites I had stuck on the wall, as well as the whole Quantum efforts to make Firefox better, as well as of course WebVR), questions on that status and future of Thunderbird (I'm on its planning mailing list so could answer most questions there), some Rust-related ones including "can I trust that Rust will be around in a few years when Mozilla tends to kill its own projects all the time?" (I hope I could calm the worries there), the usual Firefox support questions and some one-off specialty items - as well as multiple discussions on the demise of Firefox OS and how that increased the shortage of alternatives next to the proprietary iOS and Android choices on mobile. I was surprised at how there was nobody hugely disturbed by us killing plugins or the upcoming huge changes in the add-ons ecosystem, there was more concern about how many old computers we leave in the cold by unsupporting Windows XP and pre-SSE2 CPUs - and about how we seem to have more graphics-related crashes than Chrome.
One conversation with an IoT hacker once again showed me how much potential FlyWeb could have if it was pushed forward somewhat more.

The conversations definitely showed that there is interest in both more A-Frame/WebVR workshops and also potentially in Rust meetups in Vienna, so I will probably look into that.

This leads me to the A-Frame workshop I did on Friday, which went really well - starting with the introductory Presentation Kit, handing around the cardboards with the museum and 360° image as demos, an introduction round (which I forgot at the beginning, but fit well there as well), and then going hands-on on the attendees laptops. For that, I put up some steps from the A-Frame School - though I pointed people to awesome-aframe and where they can find the school, so they can also do some things at their own pace. I encouraged people to play around with the Hello WebVR example (and most didn't want to use Glitch but instead used local files and their editor of choice) and went around in the room, engaging with the attendees individually as they tried and also struggled with and solved different things. Adding image textures and tag-based animations were the big hit, unlike in my first workshop, there was very little JS used this time. One person had a big stone ball rolling towards the viewer in a narrow street, which can get scary... ;-)
The resounding feedback was that everyone (and we had a nicely diverse group, including an older man, multiple women, from web developers to an artist, people with our without previous experience with 3D or VR stuff) could take something with them and most of them were interested to join future workshops on the topic.

Image No. 23313
Our talks also did get good feedback from the people we talked to and pretty interesting and interested questions (I tend to take the kind and amount of questions I get at talks as a major piece of feedback). I think that all in all, we could spread the word on a number of Open Web and Mozilla topics and get people interested in things we are doing in this community. I also hope that this will result in growing our community somewhat in the mid to long term, as this time I had to man the booth alone most of the time. Thanks to Dragana and Arpad from the existing community though, who each joined the booth for a few hours on different days (and Dragana of course also for her talk).

For me, this was a pretty successful event, I hope we can do even better in the future - and if you are doing similar events, maybe my experiences can help you as well (feel free to ask me for more details)!

Von KaiRo, um 23:08 | Tags: A-Frame, Linuxwochen, Mozilla, talk, WebVR, workshop | keine Kommentare | TrackBack: 0

14. März 2017

Final Round for My LCARStrek and EarlyBlue Themes

As you may have noted, Mozilla published a plan for a new themes system that doesn't fully cover my thoughts on the matter and ends up making themes that go as far as my LCARStrek theme impossible.

The only way I could still hold up this extent of theming is to spread it guerilla-style as userChrome.css mods, i.e. a long CSS sheet to be copied into people's userChromes.css manually. That would still allow the extent of theming, but be extremely inconvenient to distribute.

Because of that, I will stop development of my themes as soon as Firefox 57 hits Nightly and I can't use the LCARStrek theme myself any more (EarlyBlue, which is SeaMonkey-only, is something I just dragged along anyhow). Given the insecurity of even having releases and the small "market", I also will not continue them for SeaMonkey only, Firefox has been the only thing that really mattered any more there.

Also, explicit theming support for Firefox devtools is being removed from LCARStrek with the 2.49 release that I just submitted to AMO as it's extremely complicated to maintain and with the looming removal of full themes from Firefox, that amount of work is not worth my time any more. Because of this, there is a bit of a mixture of styles in some areas of devtools esp. in Firefox 52 (improving in newer versions) but that is outside of the control of a theme author. I tested that devtools are usable this way, contrast of icons in toolbars isn't optimal at times but visible enough so developers can work with them. To any LCARStrek users, sorry for the inconvenience, I would have put more work into this if the theming feature of this extent would not be removed.

Image No. 23308

This is a hard step for me as the first thing I experimented with when I downloaded my first Mozilla M5 build in 1999 was actually the theming files, and LCARStrek came out of that as a demonstration of how awesome this system of customization was and how far it could go. It achieve a look that really was out of this world, but I guess the new direction of Firefox is not compatible with a 24th century look. ;-)

It will also be hard for me go move back to the bland look of the default theme, esp. as it looks even more boring on Linux than on other platforms, but I have a few months to get used to the idea before I actually have to do this, and I will keep the themes going for that little while.

Somehow this fits well with the overall theme that MoCo and myself are at odds right now on a number of things, but you can be assured that I'm not gone from the community, as a matter of fact I have planned a few activities in Vienna in the next months, from WebVR workshops to conference appearances, and I'm just about to finish the Tech Speakers training and hope to be more active in that area in the future.

LLAP!

Von KaiRo, um 18:33 | Tags: EarlyBlue, Firefox, LCARStrek, Mozilla, SeaMonkey, themes | 2 Kommentare | TrackBack: 0

21. Februar 2017

The PHP Authserver

As mentioned previously here on my blog, my FOSDEM 2017 talk ended up opening up the code for my own OAuth2 login server which I created following my earlier post on the login systems question.

The video from the talk is now online at the details page of the talk (including downloadable versions if you want them), my slides are available as well.

The gist of it is that I found out that using a standard authentication protocol in my website/CMS systems instead of storing passwords with the websites is a good idea, but I also didn't want to report who is logging into which website at what point to a third party that I don't completely trust privacy-wise (like Facebook or Google). My way to deal with that was to operate my own OAuth2 login server, preferably with open code that I can understand myself.

As the language I know best is PHP (and I can write pretty clean and good quality code in that language), I looked for existing solutions there but couldn't find a finished one that I could just install, adapt branding-wise and operate.
I found a good library for OAuth2 (and by extension OpenID Connect) in oauth2-server-php, but the management of actual login processes and creating the various end points that call the library still had to be added, and so I set out to do just that. For storing passwords, I investigated what solutions would be good and in the end settled for using PHP's builtin password_hash function including its auto-upgrade-on-login functionalities, right now that means using bcrypt (which is decent but not fully ideal), with PHP 7.2, it will move to Argon2 (which is probably the best available option right now). That said, I wrote some code to add an on-disk random value to the passwords so that hacking the database alone will be insufficient for an offline brute-force attack on the hashes. In general, I tried to use a lot of advice from Mozilla's secure coding guidelines for websites, and also made sure my server passes with A+ score on Mozilla Observatory as well as SSL Labs, and put the changes for that in the code as much as possible, or example server configurations in the repository otherwise, so that other installations can profit from this as well.
For sending emails and building up HTML as DOM doucuments, I'm using helper classes from my own php-utility-classes and for some of the database access, esp. schema upgrades, I ended up including doctrine DBAL. Optionally, the code is there to monitor traffic via Piwik.

The code for all this is now available at https://github.com/KaiRo-at/authserver.

It should be relatively easy to install on a Linux system with Apache and MySQL - other web servers and databases should not be hard to add but are untested so far. The main README has some rudimentary documentation, but help is needed to improve on that. Also, all testing is done by trying logins with the two OAuth2 implementations I have done in my own projects, I need help in getting a real test suite set up for the system.
Right now, all the system supports is the OAuth2 "Authorization Code" flow, it would be great to extend it to support OIDC as well, which php-server-php can handle but the support code for it needs to be written.
Branding can easily be adapted for the operator running the service via the skin support (my own branding on my installation builds on that as well), and right now US English and German are supported by the service but more can easily be added if someone contributes them.

And last but not least, it's all under the MPL2 license, which I hope enables people easily to contribute - I hope including yourself!

Von KaiRo, um 16:05 | Tags: authserver, CBSM, FOSDEM, identity, login, Mozilla, OAuth2, Persona, PHP | keine Kommentare | TrackBack: 0

23. Dezember 2016

Looking for Review on PHP Code (Login/Auth System)

Yay! My talk about "Web Logins after Persona - How I solved logins on my small websites" has been accepted for the Mozilla DevRoom at FOSDEM 2017!

That talk is a followup on my earlier post on the login systems question, which I ended up solving by writing my own OAuth2 login server based on oauth2-server-php. While that library provides the actual functionality for OAuth2, I had to build a system around it that handles the actual registration and login and the API for retrieving an email address for the logged in user.

I would like to open up the code for that server to the public at FOSDEM!

For that, I need someone (hopefully multiple people) to review the code to be sane security-wise (an in-depth audit is probably not needed yet, but review for sanity for sure), as I have it deployed myself and don't want the open code to be a risk for me, and also I want it to be fine for people to deploy and depend their own (small) websites on this system for login.

It's basically all PHP code, but it's not too much, the PHP files of the project itself are just about 900 lines long altogether, though it uses the document and email classes from my php-utility-classes as well as oauth2-server-php and a bit of doctrine DBAL, though I don't think the latter two need any review for sanity. The JS is minimal and the CSS no issue for security sanity. ;-)

I have one Mozillian who has volunteered and should look into the code soon, but I'd like to have two or three people to take a look, if possible.

If you can help, please let me know with a reply on this post (leave your email, as I'll contact you there), Telegram, Diaspora*, or email and tell me why/how you are qualified to review this code.

Thanks and Happy Holidays!

Von KaiRo, um 03:08 | Tags: BrowserID, CBSM, FOSDEM, identity, login, Mozilla, OAuth2, Persona, PHP | keine Kommentare | TrackBack: 0

3. Dezember 2016

I Want an Internet of Humans

I'm going through some difficult times right now, for various reasons I'm not going into here. It's harder than usual to hold onto my hopes and dreams and the optimism for what's to come that fuels my life and powers me with energy. Unfortunately, there's also not a lot of support for those things in the world around me right now. Be it projects that I shared a vision with being shut down, be it hateful statements coming from and being thrown at a president elect in the US, politicians in many other countries, including e.g. the presidential candidates right here in Austria, or even organizations and members of communities I'm part of. It looks like the world is going through difficult times, and having an issue with holding on to hopes, dreams, and optimism. And it feels like even those that usually are beacons of light and preach hope are falling into the trap of preaching the fear of darkness - and as soon as fear enters our minds, it's starting a vicious cycle.

Some awesome person or group of people wrote a great dialog into Star Wars Episode I, peaking in Yoda's "Fear is the path to the dark side. Fear leads to anger. Anger leads to hate. Hate leads to suffering." - And so true this is. Think about it.

People fear about securing their well-being, about being able to live the life they find worth living (including their jobs(, and about knowing what to expect of today and tomorrow. When this fear is nurtured, it grows, leads to anger about anything that seems to threaten it. They react hatefully to anyone just seeming to support those perceived threats. And those targeted by that hate hurt and suffer, start to fear the "haters", and go through the cycle from the other side. And and in that climate, the basic human uneasy feeling of "life for me is mostly OK, so any change and anything different is something to fear" falls onto fertile ground and grows into massive metathesiophobia (fear of change) and things like racism, homophobia, xenophobia, hate of other religions, and all kinds of other demons rise up.

Those are all deeply rooted in sincere, common human emotions (maybe even instincts) that we can live with, overcome and even turn around into e.g. embracing infinite diversity in infinite combinations like e.g. Star Trek, or we can go and shove them away into a corner of our existence, not decomposing them at their basic stage, and letting them grow until they are large enough that they drive our thinking, our personality - and make us easy to influence by people talking to them. And that works well both for the fears that e.g. some politicians spread and play with and the same for the fears of their opponents. Even the fear of hate and fear taking over is not excluded from this - on the contrary, it can fire up otherwise loving humans into going fully against what the actually want to be.

That said, when a human stands across another human and looks in his or her face, looks into their eyes, as long as we still realize there is a feeling, caring other person on the receiving end of whatever we communicate, it's often harder to start into this circle - if we are already deep into the fear and hate, and in some other circumstances this may not be always true, but in a lot of cases it is.

On the Internet, not so much. We interact with and through a machine, see an "account" on the other end, remove all the context of what was said before and after, of the tone of voice and body language, of what surroundings others are in, we reduce to a few words that are convenient to type or what the communication system limits us to - and we go for whatever gives us the most attention. Because we don't actually feel like we interact with other real humans, it's mostly about what we get out of it. A lot of likes, reshares, replies, interactions. It helps that the services we use maximize whatever their KPI are and not optimize for what people actually want - after all, they want to earn money and that means having a lot of activity, and making people happy is not an actual goal, at best a wishful side effect.

We need to change that. We need to make social media actually social again (this talk by Chris Heilmann is really worth watching). We need to spread love ("make Trek, not Wars" in a tounge-in-cheek kind of way, no meaning negativity towards any franchise, but thinking about meanings and how we can make things better for our neighbors, our community, our world), not even hate the fear or fear the hate (which leads back into the circle), but analyze it, take it seriously and break it down. If we understand it, know how to deal with it, but not let it overcome us, fear can even be healthy - as another great screenwriter put it "Fear only exists for one purpose: To be conquered". That is where we need to get ourselves, and need to help those other humans end up that spread hate and unreflected fear - or act out of that. Not by hating them back, but by trying to understand and help them.

We need to see the people, the humans, behind what we read on the Internet (I deeply recommend for you to watch this very recent talk by Erika Baker as well). I don't see it as a "Crusade against Internet hate" as mentioned in the end of that talk, but more as a "Rally for Internet love" (unfortunately, some people would ridicule that wording but I see it as the love of humanity, the love for the human being inside each and everyone of us). I'm always finding it mind-blowing that every single person I see around me, that reads this, that uses some software I helped with, and every single other person on this planet (or in its orbit, there are none out further at this time as far as I know), is a fully, thinking, feeling, caring human being. Every one of those is different, every one of those has their own thoughts and fears that need to be addressed and that we need to address. And every one of those wants to be loved. And they should be. No matter who they voted for. No matter if they are a president elect or a losing candidate. We don't need to agree with everything they are saying. But their fears should be addressed and conquered. And yes, they should be loved. Their differences should be celebrated and their commonalities embraced at the same time. Yes, that's possible, think about it. Again, see the philosophy of infinite diversity in infinite combinations.

I want an Internet that connects those humans, brings them closer together, makes them understand each other more, makes them love each other's humanity. I don't care how many "things" we connect to the Internet, I care that the needs and feelings of humans and their individual and shared lives improve. I care that their devices and gadgets are their own, help their individuality, and help them embrace other humans (not treat them as accounts and heaps to data to be analyzed and sold stuff to). I want everyone to see that everyone else is (just) human, and spread love to or at least embrace them as humans. Then the world, the humans in it, and myself, can make it out of the difficult times and live long and prosper in the future.

I want an Internet of humans.
We all, me, you can start creating that in how we interact with each other on social networks and other places on the web and even in the real world, and we can build it into whatever work we are doing.

I want an Internet of humans.
Can, will, you help?

Von KaiRo, um 04:13 | Tags: fear, hate, humanity, IDIC, Internet, love, Mozilla | 1 Kommentar | TrackBack: 0

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