A Mounaiban mini-project.
Numwal (shorthand for Numbered Wallpapers) generates numbered and blank wallpapers for use with fleets of PCs, smartphones, tablets, VMs and other systems with a display for quick identification. It is a server-based attempt at a device- or system-independent method of generating wallpapers.
Wallpapers are just an HTTP GET request away, readily downloadable with a curl
command in a script or a web browser, or any other way that works for you.
Please note that some links in this document only work when viewed from a running instance of Numwal, and not on GitHub. These links are indicated by the 🔹 symbol.
To deploy or install a(nother) Numwal demo instance, please see SETUP.md, or https://github.com/mounaiban/numwal/blob/master/SETUP.md for detailed instructions.
Use an HTTP client (like standard web browsers or curl) to issue GET
requests to the server to download wallpapers. For now, all wallpapers
are in PNG format.
These examples assume that you have an instance of of Numwal running
at localhost on port 9080:
Try these in your web browser:
-
http://127.0.0.1:9080/blankpic/1440x3200/orange (IPv4, HxW)🔹
-
http://[::1]:9080/blankpic/dci4k/ab06d9 (IPv6, preset size)🔹
Wallpapers may also be downloaded with the curl command, useful when
wallpapers have to be requested from a script:
-
curl -o numwal-wp-demo.png http://localhost:9080/wallpaper/default/3 -
curl -o numwal-blank-demo.png http://127.0.0.1:9080/blankpic/1440x3200/orange -
curl -o numwal-blank-demo.png http://[::1]:9080/blankpic/dci4k/ab06d9
The URI syntax is as follows (when the server is at localhost):
localhost/wallpaper/$STYLE/$NUMBER
A list of available wallpaper styles🔹 with example links will be returned if no style or number is specified.
Style definitions are in www/styles/. Styles can be added or
modified, and are defined using a JSON-based CSS-like but not quite
format.
TODO: Instructions for creating and customising styles will be
released later. Meanwhile, check www/wallpaper.php for supported
options and the www/styles to get a feel for the style definition
formats.
The URI syntax is as follows (when the server is at localhost):
localhost/blankpic/$SIZE/$COLOUR
A list of supported values for $SIZE🔹 will be returned
if no size or colour is specified.
See the list of X11 colours for supported values for $COLOUR.
If you are lost, go to any non-existent URL or the index🔹. A list of available features will be returned. There aren't many features at the moment, and most of them have been covered by this document 😉.
Copyright 2020-2022 Mounaiban.
Numwal is free software, licensed under the terms of the Apache Public Licence 2.0.
Some material bundled with the official distribution are licensed under separate terms:
Copyright ©2014 I. Barrios and J. Ligero.
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
This is the background picture used in the babuchas wallpaper styles.
Copyright ©2014, 2016 Craig Rozynski. This font software is licensed under the SIL Open Font License, Version 1.1.
This font family is used in the numbers in the babuchas wallpaper styles.
Copyright ©2019 Abbie Gonzalez. This font software is licensed under the SIL Open Font License, Version 1.1.
The SIL-OFL re-release of this font family is used for the numbers in the default wallpaper style.
If you obtained this software from third-party sources with additional styles, it may contain additional copyrighted material such as pictures and fonts. Please check with the copyright holders of the materials for licensing terms and conditions.
This application is built with the Fat-Free Framework.
Wallpapers are generated using ImageMagick via the Imagick PHP extension.
Numwal's original mission had two objectives: to help a certain admin tell identical-looking devices of a fleet apart, attempt to realise Roy Fielding's Represenational State Transfer (REST) pattern while doing it.
The degree of success of this exercise is entirely left to your own judgement. See also: Splitting Hairs With REST: Does a standard JSON REST API violate HATEOAS? on StackOverflow.
Alas, this application was never deployed, nor ever known to the administrator it was intended to help. Nevertheless, it has been uploaded here as a public learning journal for Docker, Git and PHP and web API development. You are invited to use it in your classes and tutorials on anything about PHP, networking and virtualisation/container technology, information security and anything in between.