RSS2Hook

This project is a self-hosted utility which will make HTTP POST requests to remote web-hooks when new items appear in an RSS feed.

Rational

I have a couple of webhooks in-place already which will take incoming HTTP submissions and "do stuff" with them, for example:

Posting to my alerting system.
- Which is called purppura and is pretty neat.
Posting to IRC.
- IRC was mattermost before slack before born.

I also have a bunch of RSS feeds that I follow, typically these include github releases of projects. For example my git-host runs gitbucket so I subscribe to the release feed of that, to ensure I'm always up to date:

https://github.com/gitbucket/gitbucket/releases.atom

Installation

There are two ways to install this project from source, which depend on the version of the go version you're using.

If you prefer you can fetch a binary from our release page. Currently there is only a binary for Linux (amd64) due to the use of cgo in our dependencies.

Build without Go Modules (Go before 1.11)

go get -u github.com/skx/rss2hook

Build with Go Modules (Go 1.11 or higher)

git clone https://github.com/skx/rss2hook ;# make sure to clone outside of GOPATH
cd rss2hook
go install

Setup

There are two parts to the setup:

Configure the list of feeds and the corresponding hooks to POST to.
Ensure the program is running.

For the first create a configuration-file like so:

http://example.com/feed.rss = https://webhook.example.com/notify/me

(There is a sample configuration file sample.cfg which will demonstrate this more verbosely.)

You can use your favourite supervision tool to launch the deamon, but you can test interactively like so:

 $ rss2hook -config ./sample.cfg

Sample Webhook Receiver

There is a simple webserver located beneath webhook/ which will listen upon http://localhost:8080, and dump any POST submission to the console.

You can launch it like so:

 cd webhook/
 go run webhook.go

Testing it via curl would look like this:

  $ curl --header "Content-Type: application/json"  \
  --request POST \
  --data '{"username":"blah","password":"blah"}' \
  http://localhost:8080/

The sample.cfg file will POST to this end-point so you can see how things work:

$ rss2hook --config=sample.cfg

Implementation Notes

By default the server will poll all configured feeds immediately upon startup.
- It will look for changes every five minutes.
To ensure items are only announced once state is kept on the filesystem.
- Beneath the directory ~/.rss2hook/seen/.
Feed items are submitted to the webhook as JSON.

Github Setup

This repository is configured to run tests upon every commit, and when pull-requests are created/updated. The testing is carried out via .github/run-tests.sh which is used by the github-action-tester action.

Releases are automated in a similar fashion via .github/build, and the github-action-publish-binaries action.

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skx/rss2hook

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