WebFinger

Description

Enables WebFinger (RFC 7033) support for WordPress.

About WebFinger:

WebFinger is used to discover information about people or other
entities on the Internet that are identified by a URI using
standard Hypertext Transfer Protocol (HTTP) methods over a secure
transport. A WebFinger resource returns a JavaScript Object
Notation (JSON) object describing the entity that is queried.
The JSON object is referred to as the JSON Resource Descriptor (JRD).

(quote from the RFC)

Installation

  1. Upload the webfinger-folder to the /wp-content/plugins/ directory
  2. Activate the plugin through the Plugins menu in WordPress
  3. …and that’s it 🙂

FAQ

How to extend the JRD file

You can add your own links or properties like that:

function oexchange_target_link( $array ) {
  $array["links"][] = array( 'rel' => 'http://oexchange.org/spec/0.8/rel/resident-target',
    'href' => 'http://example.com',
    'type' => 'application/xrd+xml' );
  return $array;
}
add_filter( 'webfinger', 'oexchange_target_link' );
Add alternate file/output formats

You can add your own links or properties like that:

function render_xrd($webfinger) {
  // set custom header();

  // JRD to XRD code

  exit;
}
add_action( 'webfinger_render', 'render_xrd', 5 );

You can find a detailed example here https://github.com/pfefferle/wordpress-webfinger-legacy

The spec

WebFinger is specified as RFC 7033

The WebFinger community page

Please visit http://webfinger.net

Contributors & Developers

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

Contributors

Translate “WebFinger” into your language.

Interested in development?

Browse the code or subscribe to the development log by RSS.

Changelog

Project maintained on github at pfefferle/wordpress-webfinger.

3.0.3

  • composer support
  • compatibility updates

3.0.2

  • get_avatar_url instead of custom code
  • some small code improvements
  • nicer PHP-docs

3.0.1

  • updated version informations
  • support the WordPress Coding Standard

3.0.0

  • added correct error-responses
  • remove legacy support for XRD and host-meta (props to Will Norris)

2.0.1

  • small bugfix

2.0.0

  • complete refactoring
  • removed simple-web-discovery
  • more filters and actions
  • works without /.well-known/ plugin

1.4.0

  • small fixes
  • added “webfinger” as well-known uri

1.3.1

  • added “rel”-filter (work in progress)
  • added more aliases

1.3

  • added host-meta resource feature (see latest spec)

1.2

  • added 404 http error if user doesn’t exist
  • added jrd discovery for host-meta

1.1

  • fixed an odd problem with lower WordPress versions
  • added support for the https://wordpress.org/extend/plugins/extended-profile/ (thanks to Singpolyma)

1.0.1

  • api improvements

1.0

  • basic simple-seb-discovery
  • json support
  • some small improvements

0.9.1

  • some changes to support http://unhosted.org

0.9

  • OStatus improvements
  • Better uri handling
  • Identifier overview (more to come)
  • Added filters
  • Added functions to get a users webfingers

0.7

  • Added do_action param (for future OStatus plugin)
  • Author-Url as Webfinger-Identifier

0.5

  • Initial release