Micro-Plugin: Mastodon Profile Verification Link

Just finished building a quick micro plugin for ClassicPress and WordPress, which allows you to add a verification link pointing back to your mastodon profile.
But not to just one, but to ALL your potential profiles (eg. I got two: one for my main stuff, and the other is for DJing + artsy fartsy).

Lazy being that I am, the settings are being displayed under Settings > Discussion => “Mastodon Profile URL(s)”. One profile URL per line.

Tested with ClassicPress 1.4. Released under the GNU GPL v2.
Get it yourself from the gist / source code. drop it in your plugin directory (preferable in its own sub-directory), activate, et voila!

	<?php
	/**
	* Plugin Name: UI Mastodon Verification Link
	* Description: Adds mastodon rel=me profile link to the html head.
	* Version: 1.0
	* Author: Fabian Wolf
	* Author URI: https://usability-idealist.net/
	* License: GNU GPL v2
	*/

	/**
	* Adds mastodon rel=me profile link to the html head as a test.
	*/

	if( !class_exists( '_ui_Mastodon_Verification_Link' ) ) {

	class _ui_Mastodon_Verification_Link {

	public $plugin_prefix;

	public static function init() {
	new self();
	}

	function __construct() {
	$this->plugin_prefix = '_ui_mvl_';

	add_action( 'wp_head', array( $this, 'add_mastodon_verification_link' ), 9 );


	// Adding options to registered field
	add_action( 'admin_menu', array( $this, 'add_settings_to_admin_page' ) );
	}

	function add_mastodon_verification_link() {

	$verification_url = apply_filters( $this->plugin_prefix . 'get_verification_url',
	get_option( $this->plugin_prefix . 'verification_url', '' )
	);



	$link_template = apply_filters( $this->plugin_prefix . 'get_link_template', '<link type="href" rel="me" href="%s" />' );

	if( !empty( $verification_url ) && !empty( $link_template ) ) {
	// <link type="href" rel="me" href="https://kosmos.social/@ginsterbusch" />

	if( !is_array( $verification_url ) ) {
	$verification_url = explode("\n", trim( $verification_url ) );

	/**
	* NOTE: NO duplicates wanted!
	*/

	$verification_url = array_unique( $verification_url );

	}

	$added_by = "\n" . '<!– added by ' . basename( __FILE__, '.php' ) . ' v1.0 –>' . "\n";

	echo "\n" . $added_by;

	foreach( $verification_url as $url ) {
	echo "\n" . sprintf( $link_template, trim( $url ) );
	}

	echo "\n" . $added_by . "\n";
	}
	}

	function add_settings_to_admin_page() {

	$settings_page = 'general';
	$settings_page = 'discussion';

	register_setting( $settings_page, $this->plugin_prefix . 'verification_url' );


	add_settings_field(
	sanitize_html_class( $this->plugin_prefix . 'verification-url' ),
	'Mastodon Profile URL(s)',
	array( $this, 'display_settings_field' ),
	$settings_page,
	'default',
	array(
	'id' => sanitize_html_class( $this->plugin_prefix . 'verification-url' ),
	'option_name' => $this->plugin_prefix . 'verification_url',
	)
	);
	}

	function display_settings_field( $input_data ) {
	$id = $input_data['id'];
	$option_name = $input_data['option_name'];
	$option_data = get_option( $option_name );

	?>
	<textarea name="<?php echo esc_attr( $option_name ); ?>"
	id="<?php echo esc_attr( $id ); ?>"
	cols="40" rows="4"><?php
	if( !empty( $option_data ) ) {
	echo esc_attr( $option_data );
	} ?></textarea>
	<?php
	}
	}


	add_action( 'plugins_loaded', array( '_ui_Mastodon_Verification_Link', 'init' ) );
	}

view raw

ui-masto-verification-link.php

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Micro-Plugin: Mastodon Profile Verification Link

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