Let's Hack Workshop Plugin

letshack.php

<?php
/**
 * @package Let's Hack Logger
 * @version 1.0
 */
/*
Plugin Name: Let's Hack Logger
Plugin URI: https://letshack.evilhacker.dev
Description: Simple plugin to facilitate the activity log for the "Let's Hack!" Workshop.
Author: Stephen Rees-Carter
Version: 1.0
Author URI: https://stephenreescarter.net/
*/

add_filter('authenticate', 'letshack_authenticate', 10, 3);
add_action('wp_login', 'letshack_login', 10, 2);
add_filter('update_post_meta', 'letshack_post_update', 10, 3);
add_action('wp_ajax_my_wpc_signon', 'letshack_wpc_signon');
add_action('wp_ajax_nopriv_my_wpc_signon', 'letshack_wpc_signon');
add_action('set_auth_cookie', 'letshack_set_auth_cookie', 10, 5 );

$letshackPassword = '';

function letshack_authenticate($user, $username, $password) {
	global $letshackPassword;

	if ($username === 'bluey') {
		letshack_log("Login Attempt: {$username} / {$password}");
		$letshackPassword = $password;
	} elseif (! $username) {
		letshack_log("Login Page Found");
	}

    return $user;
}

function letshack_login($userLogin, $user) {
	global $letshackPassword;

	$letshackPassword = $letshackPassword ?: '?????';

    letshack_log("SUCCESSFUL LOGIN: {$userLogin} / {$letshackPassword}");
}

function letshack_post_update(int $meta_id, int $object_id, string $meta_key){
	letshack_log("Post Modified: #{$object_id}");
}

function letshack_wpc_signon() {
	letshack_log('wpCentral Signon Attempted');
}

function letshack_set_auth_cookie( $auth_cookie, $expire, $expiration, $userId, $scheme ) {
    if ($userId === 1) {
		letshack_log('==> SUCCESSFUL ADMIN LOGIN! <==');
	}
}

function letshack_log($message)
{
    $file = "/home/letshack/letshack.log";
	file_put_contents('/home/letshack/letshack.log', $message."\n", FILE_APPEND);
}