Slowwave

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A slow Pixelflut server with some other benefits.

Features

• Not high-performance
• Default Pixelflut commands (HELP, SIZE, PX)
• OFFSET command for setting an offset for all PX commands on this connection.
• Website at http://localhost:8080 for image output and some stats
• The TOKEN command. For more see below.

More coming soon...

The TOKEN command

When the TOKEN command is enabled with commandline flag --token every PX command requires a token to paint. One token is valid for the ip the request is sent from and will last a specific amount of PX calls. The usage count can be changed with the --useCountPerToken <value> commandline parameter, per default its 100 calls.

To retrieve a token the TOKEN command can be called. This command is rate-limited to 1 call per second! In combination with the use count a rate limit for painting actions per host is established.

All PX painting commands must specify an additional parameter, which is the token.

An example flow:

-> PX 1 1 ff0000
<- ERR Invalid Token

-> TOKEN
<- TOKEN a466bb98-492e-4770-a772-b0b477bf26a7 100
#         /\                                   /\
#         ||                                   ||        
#      The token                      Remaining usage count

-> PX 1 1 ff0000 a466bb98-492e-4770-a772-b0b477bf26a7
<- 

Running

The recommended way to run slowwave is a containerized deployment. Pre-build images can be found in the packages of this project. For an easy start there is a docker-compose.yaml in the repository.

The docker images have versioned tags. But the latest tag points to the latest dev version (this will be the bloody edge)!

Development

To test the local dev build of slowwave a pixelpawner docker-compose can be found in the test folder.

Release

For a release execute ./gradlew release locally, it will create a release with version number.