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Automattic/wordpress-activitypub

Automattic/wordpress-activitypub

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Last Updated: 2023-09-16 12:14:40

#fediverse #wordpress #wordpress-plugin #ostatus #federated-social-web #decentralized #mastodon #activitystreams #activitypub #federated #hacktoberfest

ActivityPub for WordPress

License: MIT License

Languages: JavaScript, PHP, Shell, CSS, Dockerfile, SCSS

https://wordpress.org/plugins/activitypub/

ActivityPub

Contributors: automattic, pfefferle, mediaformat, mattwiebe, akirk, jeherve, nuriapena, cavalierlife
Tags: OStatus, fediverse, activitypub, activitystream
Requires at least: 4.7
Tested up to: 6.3
Stable tag: 1.0.0
Requires PHP: 5.6
License: MIT
License URI: http://opensource.org/licenses/MIT

The ActivityPub protocol is a decentralized social networking protocol based upon the ActivityStreams 2.0 data format.

Description

Enter the fediverse with ActivityPub, broadcasting your blog to a wider audience! Attract followers, deliver updates, and receive comments from a diverse user base of ActivityPub-compliant platforms.

With the ActivityPub plugin installed, your WordPress blog itself function as a federated profile, along with profiles for each author. For instance, if your website is example.com, then the blog-wide profile can be found at @[email protected], and authors like Jane and Bob would have their individual profiles at @[email protected] and @[email protected], respectively.

An example: I give you my Mastodon profile name: @[email protected]. You search, see my profile, and hit follow. Now, any post I make appears in your Home feed. Similarly, with the ActivityPub plugin, you can find and follow Jane's profile at @[email protected].

Once you follow Jane's @[email protected] profile, any blog post she crafts on example.com will land in your Home feed. Simultaneously, by following the blog-wide profile @[email protected], you'll receive updates from all authors.

Note: if no one follows your author or blog instance, your posts remain unseen. The simplest method to verify the plugin's operation is by following your profile. If you possess a Mastodon profile, initiate by following your new one.

The plugin works with the following tested federated platforms, but there may be more that it works with as well:

Some things to note:

  1. The blog-wide profile is only compatible with sites with rewrite rules enabled. If your site does not have rewrite rules enabled, the author-specific profiles may still work.
  2. Many single-author blogs have chosen to turn off or redirect their author profile pages, usually via an SEO plugin like Yoast or Rank Math. This is usually done to avoid duplicate content with your blog’s home page. If your author page has been deactivated in this way, then ActivityPub author profiles won’t work for you. Instead, you can turn your author profile page back on, and then use the option in your SEO plugin to noindex the author page. This will duplicate content issues with search engines and will enable ActivityPub author profiles to work.
  3. Once ActivityPub is installed, only new posts going forward will be available in the fediverse. Likewise, even if you’ve been using ActivityPub for a while, anyone who follows your site, will only see new posts you publish from that moment on. They will never see previously-published posts in their Home feed. This process is very similar to subscribing to a newsletter. If you subscribe to a newsletter, you will only receive future emails, but not the old archived ones. With ActivityPub, if someone follows your site, they will only receive new blog posts you publish from then on.

So what’s the process?

  1. Install the ActivityPub plugin.
  2. Go to the plugin’s settings page and adjust the settings to your liking. Click the Save button when ready.
  3. Make sure your blog’s author profile page is active if you are using author profiles.
  4. Go to Mastodon or any other federated platform, and search for your profile, and follow it. Your new profile will be in the form of either @[email protected] or @[email protected], so that is what you’ll search for.
  5. On your blog, publish a new post.
  6. From Mastodon, check to see if the new post appears in your Home feed.

Please note that it may take up to 15 minutes or so for the new post to show up in your federated feed. This is because the messages are sent to the federated platforms using a delayed cron. This avoids breaking the publishing process for those cases where users might have lots of followers. So please don’t assume that just because you didn’t see it show up right away that something is broken. Give it some time. In most cases, it will show up within a few minutes, and you’ll know everything is working as expected.

Frequently Asked Questions

tl;dr

This plugin connects your WordPress blog to popular social platforms like Mastodon, making your posts more accessible to a wider audience. Once installed, your blog can be followed by users on these platforms, allowing them to receive your new posts in their feeds.

What is the status of this plugin?

Implemented:

  • blog profile pages (JSON representation)
  • author profile pages (JSON representation)
  • custom links
  • functional inbox/outbox
  • follow (accept follows)
  • share posts
  • receive comments/reactions
  • signature verification

To implement:

  • threaded comments support
  • replace shortcodes with blocks for layout

What is "ActivityPub for WordPress"

ActivityPub for WordPress extends WordPress with some Fediverse features, but it does not compete with platforms like Friendica or Mastodon. If you want to run a decentralized social network, please use Mastodon or GNU social.

What if you are running your blog in a subdirectory?

In order for webfinger to work, it must be mapped to the root directory of the URL on which your blog resides.

Apache

Add the following to the .htaccess file in the root directory:

RedirectMatch "^\/\.well-known/(webfinger|nodeinfo|x-nodeinfo2)(.*)$" /blog/.well-known/$1$2

Where 'blog' is the path to the subdirectory at which your blog resides.

Nginx

Add the following to the site.conf in sites-available:

location ~* /.well-known {
	allow all;
	try_files $uri $uri/ /blog/?$args;
}

Where 'blog' is the path to the subdirectory at which your blog resides.

Changelog

Project maintained on GitHub at automattic/wordpress-activitypub.

Next

  • Compatibility: allow deactivating blocks registered by the plugin.
  • Compatibility: avoid Fatal Errors when using ClassicPress.
  • Fixed: fix a typo in a hook name.

1.0.0

  • Add: blog-wide Account (catchall, like [email protected])
  • Add: a Follow Me block (help visitors to follow your Profile)
  • Add: Signature Verification: https://docs.joinmastodon.org/spec/security/
  • Add: a Followers Block (show off your Followers)
  • Add: Simple caching
  • Add: Collection endpoints for Featured Tags and Featured Posts
  • Add: Better handling of Hashtags in mobile apps
  • Update: Complete rewrite of the Follower-System based on Custom Post Types
  • Update: Improved linter (PHPCS)
  • Compatibility: Add a new conditional, \Activitypub\is_activitypub_request(), to allow third-party plugins to detect ActivityPub requests
  • Compatibility: Add hooks to allow modifying images returned in ActivityPub requests
  • Compatibility: Indicate that the plugin is compatible and has been tested with the latest version of WordPress, 6.3
  • Compatibility: Avoid PHP notice on sites using PHP 8.2
  • Fixed: Load the plugin later in the WordPress code lifecycle to avoid errors in some requests
  • Fixed: Updating posts
  • Fixed: Hashtag now support CamelCase and UTF-8

0.17.0

  • Fix type-selector
  • Allow more HTML elements in Activity-Objects

0.16.5

  • Return empty content/excerpt on password protected posts/pages

0.16.4

  • Remove scripts later in the queue, to also handle scripts added by blocks
  • Add published date to author profiles

0.16.3

  • "cc", "to", ... fields can either be an array or a string
  • Remove "style" and "script" HTML elements from content

0.16.2

  • Fix fatal error in outbox

0.16.1

  • Fix "update and create, posts appear blank on Mastodon" issue

0.16.0

  • Add "Outgoing Mentions" (#213) props @akirk
  • Add configuration item for number of images to attach (#248) props @mexon
  • Use shortcodes instead of custom templates, to setup the Activity Post-Content (#250) props @toolstack
  • Remove custom REST Server, because the needed changes are now merged into Core.
  • Fix hashtags (#261) props @akirk
  • Change priorites, to maybe fix the hashtag issue

0.15.0

  • Enable ActivityPub only for users that can publish_posts
  • Persist only public Activities
  • Fix remote-delete

0.14.3

  • Better error handling. props @akirk

0.14.2

  • Fix Critical error when using Friends Plugin and adding new URL to follow. props @akirk

0.14.1

  • Fix "WebFinger not compatible with PHP < 8.0". props @mexon

0.14.0

0.13.4

  • fix webfinger for email identifiers

0.13.3

  • fix: Create and Note should not have the same ActivityPub ID

0.13.2

  • fix Follow issue AGAIN

0.13.1

  • fix Inbox issue

0.13.0

  • add Autor URL and WebFinger health checks
  • fix NodeInfo endpoint

0.12.0

0.11.2

  • fix inconsistent %tags% placeholder

0.11.1

  • fix follow/unfollow actions

0.11.0

0.10.1

  • fix inbox activities, like follow
  • fix debug

0.10.0

  • add image alt text to the ActivityStreams attachment property in a format that Mastodon can read. props @BenLubar
  • use the "summary" property for a title as Mastodon does. props @BenLubar
  • support authorized fetch to avoid having comments from "Anonymous". props @BenLubar
  • add new post type: "title and link only". props @bgcarlisle

0.9.1

  • disable shared inbox
  • disable delete activity

0.9.0

  • some code refactorings
  • fix #73

0.8.3

  • fixed accept header bug

0.8.2

  • add all required accept header
  • better/simpler accept-header handling
  • add debugging mechanism
  • Add setting to enable AP for different (public) Post-Types
  • explicit use of global functions

0.8.1

  • fixed PHP warnings

0.8.0

  • Moved followers list to user-menu

0.7.4

0.7.3

  • refactorings
  • fixed PHP warnings
  • better hashtag regex

0.7.2

0.7.1

  • fixed inbox problems with pleroma

0.7.0

  • finally fixed pleroma compatibility
  • added "following" endpoint
  • simplified "followers" endpoint
  • fixed default value problem

0.6.0

  • add tags as hashtags to the end of each activity
  • fixed pleroma following issue
  • followers-list improvements

0.5.1

  • fixed name-collision that caused an infinite loop

0.5.0

  • complete refactoring
  • fixed bug #30: Password-protected posts are federated
  • only send Activites when ActivityPub is enabled for this post-type

0.4.4

  • show avatars

0.4.3

  • finally fixed backlink in excerpt/summary posts

0.4.2

  • fixed backlink in excerpt/summary posts (thanks @depone)

0.4.1

  • finally fixed contact list

0.4.0

  • added settings to enable/disable hashtag support
  • fixed follower list
  • send activities only for new posts, otherwise send updates

0.3.2

  • added "followers" endpoint
  • change activity content from blog 'excerpt' to blog 'content'

0.3.1

  • better json encoding

0.3.0

  • basic hashtag support
  • temporarily deactivated likes and boosts
  • added support for actor objects
  • fixed encoding issue

0.2.1

  • customizable backlink (permalink or shorturl)
  • show profile-identifiers also on profile settings

0.2.0

  • added option to switch between content and excerpt
  • removed html and duplicate new-lines

0.1.1

  • fixed "excerpt" in AS JSON
  • added settings for the activity-summary and for the activity-object-type

0.1.0

  • added basic WebFinger support
  • added basic NodeInfo support
  • fully functional "follow" activity
  • send new posts to your followers
  • receive comments from your followers

0.0.2

  • refactoring
  • functional inbox
  • nicer profile views

0.0.1

  • initial

Upgrade Notice

1.0.0

For version 1.0.0 we have completely rebuilt the followers lists. There is a migration from the old format to the new, but it may take some time until the migration is complete. No data will be lost in the process, please give the migration some time.

Installation

Follow the normal instructions for installing WordPress plugins.

Automatic Plugin Installation

To add a WordPress Plugin using the built-in plugin installer:

  1. Go to Plugins > Add New.
  2. Type "activitypub" into the Search Plugins box.
  3. Find the WordPress Plugin you wish to install.
    1. Click Details for more information about the Plugin and instructions you may wish to print or save to help setup the Plugin.
    2. Click Install Now to install the WordPress Plugin.
  4. The resulting installation screen will list the installation as successful or note any problems during the install.
  5. If successful, click Activate Plugin to activate it, or Return to Plugin Installer for further actions.

Manual Plugin Installation

There are a few cases when manually installing a WordPress Plugin is appropriate.

  • If you wish to control the placement and the process of installing a WordPress Plugin.
  • If your server does not permit automatic installation of a WordPress Plugin.
  • If you want to try the latest development version.

Installation of a WordPress Plugin manually requires FTP familiarity and the awareness that you may put your site at risk if you install a WordPress Plugin incompatible with the current version or from an unreliable source.

Backup your site completely before proceeding.

To install a WordPress Plugin manually:

  • Download your WordPress Plugin to your desktop.
  • If downloaded as a zip archive, extract the Plugin folder to your desktop.
  • With your FTP program, upload the Plugin folder to the wp-content/plugins folder in your WordPress directory online.
  • Go to Plugins screen and find the newly uploaded Plugin in the list.
  • Click Activate to activate it.

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