view mod_pubsub_feeds/README.markdown @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents e4a986d55bb2
children 43b67142b37c
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---
summary: Subscribe to Atom and RSS feeds over pubsub
---

# Introduction

This module allows Prosody to fetch Atom and RSS feeds for you, and push
new results to subscribers over XMPP.

# Configuration

This module needs to be be loaded together with
[mod\_pubsub][doc:modules:mod\_pubsub].

For example, this is how you could add it to an existing pubsub
component:

``` lua
Component "pubsub.example.com" "pubsub"
modules_enabled = { "pubsub_feeds" }

feeds = {
  -- The part before = is used as PubSub node
  planet_jabber = "http://planet.jabber.org/atom.xml";
  prosody_blog = "http://blog.prosody.im/feed/atom.xml";
}
```

This example creates two nodes, 'planet\_jabber' and 'prosody\_blog'
that clients can subscribe to using
[XEP-0060](http://xmpp.org/extensions/xep-0060.html). Results are in
[ATOM 1.0 format](http://atomenabled.org/) for easy consumption.

# PubSubHubbub

This module also implements a
[PubSubHubbub](http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.3.html)
subscriber. This allows feeds that have an associated "hub" to push
updates when they are published.

Not all feeds support this.

It needs to expose a HTTP callback endpoint to work.

# Option summary

  Option                 Description
  ---------------------- -------------------------------------------------------------------------
  `feeds`                A list of virtual nodes to create and their associated Atom or RSS URL.
  `feed_pull_interval`   Number of minutes between polling for new results (default 15)
  `use_pubsubhubub`      Set to `false` to disable PubSubHubbub

# Compatibility

  ----- -------
  0.9   Works
  ----- -------