# XMPP PubSub To Atom
XMPP PubSub To Atom ("XPTA") is a simple Python script that parses XMPP Pubsub Nodes and sends them as Atom Syndication Format or OPML over HTTP.
XPTA generates Atom syndication feeds ([RFC 4287](https://www.rfc-editor.org/rfc/rfc4287)) from XMPP PubSub nodes ([XEP-0060](http://xmpp.org/extensions/xep-0060.html)).
This software was inspired from Tigase and was motivated by Movim.
## Preview
[
](screenshot/berlin-xmpp-meetup.png)
[
](screenshot/let-s-talk-about-xmpp-tricks-with-conversations-author-daniel-gultsch-OqjaQh.png)
[
](screenshot/59d860ab-d7c8-477c-bb4b-86924485cbbb.png)
[
](screenshot/selection.png)
## Motivation
PubSubToAtom is a syndication project which makes journals and publications that are hosted on XMPP PubSub nodes, available
from HTTP to both, XML news readers and even HTML browsers.
This means that instead of hosting a journal or publication site in the old fashion (i.e. HTML documents hosted on an HTTP server), one only has to have an HTTP server to operate PubSubToAtom, and the rest of the content is delivered from an XMPP server (i.e. PubSub nodes).
The project also showcases the non-necessity of HTML, as it automatically generates valid XHTML pages by XSLT stylesheets from client-side.
## Requirements
* Python >= 3.5
* fastapi
* feedgenerator
* lxml
* slixmpp
* tomllib
* uvicorn
## Installation
### Debian-based Distro
```shell
# apt install python3 python3-fastapi python3-feedgenerator python3-lxml python3-slixmpp python3-tomli uvicorn
```
### Download
Extract the source package to a directory that you have permission to run
software.
```shell
$ git clone https://git.xmpp-it.net/sch/PubSubToAtom
$ cd PubSubToAtom/
```
### Configure
Add account credentials to file `configuration.toml`.
### Start
Execute PubSubToAtom with one of the following commands:
```shell
$ python -m uvicorn pubsub_to_atom:app --reload
$ python -m uvicorn pubsub_to_atom:app --reload --host 127.0.0.1 --port 8000
$ uvicorn pubsub_to_atom:app --host 127.0.0.1 --port 8000
$ fastapi dev pubsub_to_atom.py
```
## Usage
It is possible to view a complete node and even a single item, which means, that it is possible to save bandwidth and it further means that a considered and carefully earnest use of this software would saves system overhead, which includes CPU, I/O and RAM usage.
### Viewing PubSub
Suppose you have the following nodes and items.
|PubSub |Node |Item |
|--- |--- |--- |
|blog.jmp.chat |urn:xmpp:microblog:0|launch-2023 |
|edhelas%40movim.eu|urn:xmpp:microblog:0|working-on-launching-the-movim-network-qPBzwc |
|goffi%40goffi.org |urn:xmpp:microblog:0|libervia-v0-8-la-cecilia-BdQ4 |
|news.movim.eu |Phoronix | |
|pubsub.movim.eu |berlin-xmpp-meetup |7363a41d-1146-40b3-ac0f-8ee2559591a3 |
|pubsub.movim.eu |berlin-xmpp-meetup |let-s-talk-about-the-xsf-and-possibly-other-things-6A8eV4|
#### To view node items
```
http://127.0.0.1:8000/atom?pubsub=edhelas%40movim.eu&node=urn%3Axmpp%3Amicroblog%3A0
http://127.0.0.1:8000/atom?pubsub=news.movim.eu&node=Phoronix
http://127.0.0.1:8000/atom?pubsub=pubsub.movim.eu&node=berlin-xmpp-meetup
```
#### To view a node item
```
http://127.0.0.1:8000/atom?pubsub=blog.jmp.chat&node=urn%3Axmpp%3Amicroblog%3A0&item=launch-2023
http://127.0.0.1:8000/atom?pubsub=edhelas%40movim.eu&node=urn%3Axmpp%3Amicroblog%3A0&item=working-on-launching-the-movim-network-qPBzwc
http://127.0.0.1:8000/atom?pubsub=goffi%40goffi.org&node=urn%3Axmpp%3Amicroblog%3A0&item=libervia-v0-8-la-cecilia-BdQ4
http://127.0.0.1:8000/atom?pubsub=pubsub.movim.eu&node=berlin-xmpp-meetup&item=7363a41d-1146-40b3-ac0f-8ee2559591a3
http://127.0.0.1:8000/atom?pubsub=pubsub.movim.eu&node=berlin-xmpp-meetup&item=let-s-talk-about-the-xsf-and-possibly-other-things-6A8eV4
```
## Author
Schimon Jehudah Zackary
## License
CSS and XSLT stylesheets are licensed under the license MIT.
JS scripts are licensed under the license MIT.
Python code is licensed under the license AGPL-3.0 only.
## Acknowledgement
Special thanks to "d3x" and "cchianel" from IRC channel #python on irc.libera.chat for initial references concerning code, servers and FastAPI.
And an important thank you to Simone "roughnecks" Canaletti for testing and deploying PubSubToAtom into production.
## Similar Projects
* [AtomEntry](https://github.com/tigase/sureim/blob/master/site/src/main/java/tigase/sure/web/site/client/pubsub/AtomEntry.java) and [PubSubPublishViewImpl](https://github.com/tigase/sureim/blob/master/site/src/main/java/tigase/sure/web/site/client/pubsub/PubSubPublishViewImpl.java) - Convert XMPP Pubsub Nodes to Atom Syndication Format and convey them over HTTP.
* [AtomToPubsub](https://github.com/edhelas/atomtopubsub) - A little client that parses Atom + RSS feeds and send them on XMPP Pubsub Nodes.