Title: Nostrtium
Author: pjv
Published: <strong>April 28, 2023</strong>
Last modified: June 23, 2023

---

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![](https://ps.w.org/nostrtium/assets/banner-772x250.png?rev=2905773)

This plugin **hasn’t been tested with the latest 3 major releases of WordPress**.
It may no longer be maintained or supported and may have compatibility issues when
used with more recent versions of WordPress.

![](https://ps.w.org/nostrtium/assets/icon-256x256.png?rev=2905773)

# Nostrtium

 By [pjv](https://profiles.wordpress.org/pjv/)

[Download](https://downloads.wordpress.org/plugin/nostrtium.0.7.4.zip)

 * [Details](https://frp.wordpress.org/plugins/nostrtium/#description)
 * [Reviews](https://frp.wordpress.org/plugins/nostrtium/#reviews)
 *  [Installation](https://frp.wordpress.org/plugins/nostrtium/#installation)
 * [Development](https://frp.wordpress.org/plugins/nostrtium/#developers)

 [Support](https://wordpress.org/support/plugin/nostrtium/)

## Description

Nostrtium lets you post from WordPress to [nostr](https://nostr.how/en/what-is-nostr).

This version implements basic nostr settings (private key, relays) and provides 
a metabox in the WordPress Post editing page which is pre-populated with the Post
Excerpt and a link to the Post and lets you post the content of that metabox to 
your configured relays.

You can change the content in the metabox as you like. If you have a good excerpt
and post it as-is, it creates a twitter-style “announcement” note on nostr. A lot
of nostr clients will render the link to the WordPress post as a nice-looking summary
card with featured image and etc. This functionality is probably enough for many
use-cases but I have plans to add more functionality to this plugin in the future,
including generation of keys; support for NIP-07 browser extensions; separate nostr
profiles for individual WP users; support for full, long-form content from WP to
nostr; and more.

There are also options (on the settings page) to auto-post to nostr the excerpt,
the permalink, or both upon WordPress post publication.

[Note that the private key is stored encrypted in the WordPress database using libsodium
cryptography.]

### Support and Development

Development is taking place on [github](https://github.com/pjv/nostrtium) and the
best (fastest) way to get support is to raise an [issue](https://github.com/pjv/nostrtium/issues)
or start a [discussion](https://github.com/pjv/nostrtium/discussions) there.

### Requirements

Some of the included libraries have relatively recent dependency requirements so
you will need the following in your WordPress platform:
 * PHP 8.1+ * php-gmp module
must be installed ([Installation on Ubuntu](https://computingforgeeks.com/how-to-install-php-on-ubuntu-linux-system/))*
php-bcmath module must be installed ([Installation on Ubuntu](https://www.itsolutionstuff.com/post/ubuntu-php-bcmath-extension-install-commands-exampleexample.html))*
WordPress 6.0+ * Writable uploads directory (on activation, the plugin writes a 
cryptographic keyfile to a storage directory)

### How to Use

 1. After installing and activating the plugin, go into Settings -> Nostrtium and copy/
    paste the private key (nsec1…) that you want to post from and tweak the relays 
    to your liking.
 2. Then visit the post editor page for an existing post and at or near the bottom 
    you should see the Nostrtium metabox which is pre-populated with the excerpt and
    permalink for the post (you can change the content in the metabox as you like before
    posting):

### User Role / Capability Filter

You can create a filter snippet (in your theme’s functions.php) to choose what user
role or capability has access to Nostrtium functionality. The default is `edit_posts`.
Here is a sample snippet that would change it so only adminstrators can see / use
the plugin’s functionality:

    ```
    add_filter ('nostrtium_role', function($role){
        return 'administrator';
    });
    ```

## Screenshots

 * [[
 * Nostrtium settings
 * [[
 * Post to nostr metabox

## Installation

#### Automatic installation

Automatic installation is the easiest option as WordPress handles the file transfers
itself and you don’t need to leave your web browser. To do an automatic install 
of Nostrtium, log in to your WordPress dashboard, navigate to the Plugins menu and
click Add New.

In the search field type “Nostrtium” and click Search Plugins. Once you’ve found
the plugin you can view details about it such as the point release, rating and description.
Install it by simply clicking “Install Now”.

#### Manual installation

The manual installation method involves downloading the plugin and then uploading
it to your webserver via your favorite FTP application. The WordPress codex contains
[instructions on how to do this here](https://codex.wordpress.org/Managing_Plugins#Manual_Plugin_Installation).

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Nostrtium” is open source software. The following people have contributed to this
plugin.

Contributors

 *   [ pjv ](https://profiles.wordpress.org/pjv/)

[Translate “Nostrtium” into your language.](https://translate.wordpress.org/projects/wp-plugins/nostrtium)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/nostrtium/), check 
out the [SVN repository](https://plugins.svn.wordpress.org/nostrtium/), or subscribe
to the [development log](https://plugins.trac.wordpress.org/log/nostrtium/) by [RSS](https://plugins.trac.wordpress.org/log/nostrtium/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 0.7.4

 * Fix for very long relay URLs messing up table width on settings page

#### 0.7.3

 * Allow unenecrypted (ws://) relay URLs

#### 0.7.2

 * Update requirements text and requirements check
 * Fix missing variable declaration

#### 0.7.1

 * Auto-post only on first publication – not updates of old posts.
 * Auto post only of type ‘post’ (currently not pages or custom post types).
 * Fix not saving auto publish settings to running settings instance.

#### 0.7.0

 * Allow auto posting excerpt, permalink, or both on publication of WordPress post.
 * NOTE: If you have installed a prior version, this update requires you to re-enter
   your private key on the Nostrtium settings page. This is a one-time occurrence.

#### 0.6.1

 * Initial public release

## Meta

 *  Version **0.7.4**
 *  Last updated **3 years ago**
 *  Active installations **10+**
 *  WordPress version ** 6.0 or higher **
 *  Tested up to **6.2.9**
 *  PHP version ** 8.1 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/nostrtium/)
 * Tags
 * [nostr](https://frp.wordpress.org/plugins/tags/nostr/)[social media](https://frp.wordpress.org/plugins/tags/social-media/)
 *  [Advanced View](https://frp.wordpress.org/plugins/nostrtium/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/nostrtium/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/nostrtium/reviews/)

## Contributors

 *   [ pjv ](https://profiles.wordpress.org/pjv/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/nostrtium/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](https://github.com/pjv/nostrtium)