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Informations about the package wordpress-webmention

Webmention

Contributors: pfefferle, dshanske, indieweb
Donate link: https://notiz.blog/donate/
Tags: webmention, pingback, trackback, linkback, indieweb
Requires at least: 4.9
Tested up to: 6.6
Stable tag: 5.3.3
Requires PHP: 7.0
License: MIT
License URI: https://opensource.org/licenses/MIT

Enable conversation across the web.

Description

When you link to a website you can send it a Webmention to notify it and then that website may display your post as a comment, like, or other response, and presto, you’re having a conversation from one site to another!

A Webmention is a notification that one URL links to another. Sending a Webmention is not limited to blog posts, and can be used for additional kinds of content and responses as well.

For example, a response can be an RSVP to an event, an indication that someone "likes" another post, a "bookmark" of another post, and many others. Webmention enables these interactions to happen across different websites, enabling a distributed social web.

The Webmention plugin supports the Webmention protocol, giving you support for sending and receiving Webmentions. It offers a simple built in presentation.

Frequently Asked Questions

What are Webmentions?

Webmention is a simple way to automatically notify any URL when you link to it on your site. From the receivers perpective, it's a way to request notification when other sites link to it.

That Sounds Like a Pingback or a Trackback

Webmention is an update/replacement for Pingback or Trackback. Unlike the older protocols, the specification is recommended by the W3C as well as an active community of individuals using it on their sites.

How can I send and receive Webmentions?

On the Settings --> Discussion Page in WordPress:

You can use the send_webmention($source, $target) function and pass a source and a target or you can fire an action like do_action('send_webmention', $source, $target).

How do I support Webmentions for my custom post type?

When declaring your custom post type, add post type support for Webmentions by either including it in your register_post_type entry. This can also be added in the Webmention settings.

How do I send/receive Webmentions for attachments?

You can enable receiving Webmentions for attachments in Webmention settings. You can enable sending Webmentions for media links in the settings. Please note that most receivers of Webmentions do not support receiving them to image, audio, and video files. In order to support receiving them on WordPress, Webmention endpoint headers would have to be added at the webserver level.

How can I handle Webmentions to my Homepage or Archive Pages?

Webmentions should be allowed on all URLs of a blog, however WordPress does not support this as only posts can have comments attached to them. The plugin currently handles only Webmentions on posts and allows you to set a page to receive homepage mentions.

Even though it is not done automatically, it is very simple to add support for archives and URLs on your site by providing a post/page to show collect mentions. The plugin provides a simple filter for that.

In the below example, if there is no page returned it will send mentions to a catch-all post. You can also have unique posts per URL.

function handle_other_webmentions($id, $target) {
  // do nothing if id is set
  if ($id) {
    return $id;
  }

  // return "default" id if plugin can't find a post/page
  return 9247;
}
add_filter("webmention_post_id", "handle_other_webmentions", 10, 2);

Will a caching plugin affect my ability to use this?

The URL for the Webmention endpoint, which you can view in the source of your pages, should be excluded from any server or plugin caching.

As Webmention uses the REST API endpoint system, most up to date caching plugins should exclude it by default.

Why does this plugin have settings about avatars?

Webmentions have the ability to act as rich comments. This includes showing avatars. If there is an avatar discovered, the URL for it will be stored. This can either be reflect something from the media library or a URL of a file. If the file is broken, it will store a local copy of the default gravatar image.

There are no Webmention headers on some pages of my site

Webmention headers are only shown if Webmentions are available for that particular URL. If you want to show it regardless, you can add below to your wp-config.php file.

define( 'WEBMENTION_ALWAYS_SHOW_HEADERS', 1 );

How do I customize the display of my webmentions?

This plugin includes several enhancements to the built-in WordPress commenting system to allow for enhancement, while allowing existing methods to offer customization. It customizes the classic defaults for WordPress to account for webmentions by using a custom comment walker that minimally changes to defaults. By default, many themes provide a custom callback to the wp_list_comments function. This plugin adds several enhancements to that. For one, the custom callbacks argument is usually a string with the function name. We enhance it to behave as normal in that case, but if an array is passed, to allow specific callbacks per the key of the array, or the 'all' key as a default. This means each comment type, which would be each webmention type or otherwise, can have its own custom callback.

It introduces a new version of the default function for html5 comments, adding correct microformats2 markup, and for webmentions, a proper site citation, e.g. Bob @ Example.Com as well as a hook, webmention_comment_metadata which offers a comment object as the sole argument, to add arbitrary metadata. This would be overridden by any custom comment rendering done by themes.

There is an option within the plugin to show webmentions not determined to be replies or comments inline, or to display them separately as avatar only lists. The wp_list_comments function is overridden to allow for the avatar_only option, which will render this, with a second option of overlay to overlay an icon reflecting the reaction type. Reactions are webmention types such as like, which there is no textual component to it. If you opt to display them as comments, the text will read that the author likes this post.

While not all display options can be settings, we are looking to provide some simple options which could be customized in a theme if needed.

Changelog

Project and support maintained on github at pfefferle/wordpress-webmention.

5.3.3

5.3.2

5.3.1

5.3.0

5.2.6

5.2.5

5.2.4

5.2.3

5.2.2

5.2.1

5.2.0

5.1.9

5.1.8

5.1.7

5.1.6

5.1.5

5.1.4

5.1.3

5.1.2

5.1.1

5.1.0

5.0.0

4.0.9

4.0.8

4.0.7

4.0.6

4.0.5

4.0.4

4.0.3

4.0.2

4.0.1

4.0.0

3.8.11

3.8.10

3.8.9

3.8.8

3.8.7

3.8.6

3.8.5

3.8.4

3.8.3

3.8.2

3.8.1

Thanks Sebastian Greger

3.8.0

Thanks Sebastian Greger, David Shanske and Chris Aldrich

3.7.0

3.6.0

3.5.0

3.4.1

3.4.0

3.3.0

3.2.1

3.2.0

3.1.1

3.1.0

3.0.1

3.0.0

2.6.0

2.5.0

2.4.0

2.3.4

2.3.3

2.3.2

2.3.1

2.3.0

2.2.0

2.1.4

2.1.3

2.1.2

2.1.1

2.1.0

2.0.1

2.0.0

initial release

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 "webmention" 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.

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:

Upgrade Notice

5.0.0

This version is a complete rewrite of the code and a merge of the Semantic Linkbacks plugin. You should uninstall Semantic Linkbacks for this upgrade. Please file upgrade issues via Github.

Warning: Please backup your database before upgrading. This version changes the storage method of Webmentions.

3.0.0

This update brings the plugin into compliance with the draft standard. As a result, some filters and actions have changed. Please check any dependent code before updating.

2.0.0

This plugin doesn't support the microformts stuff mentioned in the IndieWebCamp Wiki. To enable semantic linkbacks you have to use https://github.com/pfefferle/wordpress-semantic-linkbacks

All versions of wordpress-webmention with dependencies

PHP Build Version
Package Version
Requires php Version >=7.0
composer/installers Version ^1.0 || ^2.0
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