Override get_avatar_url()

[aslakr]

Since som plugins use get_avatar_url() to get the url of the avtar, would it be possible to override that?

Example of plugins using get_avatar_url():

https://github.com/willnorris/wordpress-opengraph/blob/eaefc0fabddb9f729a6179c1c8e5f7b99788b43c/opengraph.php#L205-L208

https://github.com/pfefferle/wordpress-webfinger/blob/07bf15c5eac5602478e1c4fb1f2f47ff851b1b7d/includes/class-webfinger.php#L117-L118

https://github.com/manton/jsonfeed-wp/blob/68d8e8ccbd3f8fed31a5eb954924031077cceec6/feed-json-functions.php#L142-L156

https://github.com/Automattic/Co-Authors-Plus/blob/703d0404ff27db25066f322ae9e79e440cdc2b34/co-authors-plus.php#L137-L138

[aslakr]

I suppose bp_gravatar_url is similar only for BuddyPress, but get_avatar_url() (and get_avatar_data()) was introduced later in WordPress 4.2 (in 2015)?

wp-libravatar-replace/libravatar-replace.php

Line 41 in a1f0118

add_filter('bp_gravatar_url', array($libravatarReplace, 'filterBPGravatarUrl', 10));

wp-libravatar-replace/classes/LibravatarReplace.class.php

Lines 189 to 206 in 532622c

	public function filterBPGravatarUrl()
	{
	$default_host = 'https://seccdn.libravatar.org/avatar/';
	if (empty($this->bp_catched_last_email)) {
	return $default_host;
	}
	$libravatar = $this->getLibravatarClass();
	$options = array();
	$options['algorithm'] = 'md5';
	$options['https'] = $this->isSsl();
	$url = $libravatar->getUrl($this->bp_catched_last_email, $options);
	preg_match('~^(.*/avatar/)~', $url, $matches);
	return isset($matches[1]) ? $matches[1] : $default_host;
	}

[sunchaserinfo]

There are new (pre_)get_avatar_data filters which look perfect for new injection

[aslakr]

The same applies when using @pfefferle pfefferle/wordpress-activitypub, i.e. Mastadon will use gravatar instead of federated libravatar.

Do you have any suggestion on how the code should be changed to use the (pre_)get_avatar_data filters?

[pfefferle]

pre_get_avatar_data is what we are using for Webmentions:

• https://github.com/pfefferle/wordpress-webmention/blob/5.X/includes/class-avatar.php#L16
• https://github.com/pfefferle/wordpress-webmention/blob/5.X/includes/class-avatar.php#L161

[sunchaserinfo]

Anyone care to take over the plugin?