source: https-redirection/trunk/https-redirection.php

<?php
/*
Plugin Name: Easy HTTPS (SSL) Redirection
Plugin URI: https://www.tipsandtricks-hq.com/wordpress-easy-https-redirection-plugin
Description: The plugin HTTPS Redirection allows an automatic redirection to the "HTTPS" version/URL of the site.
Author: Tips and Tricks HQ
Version: 2.0.0
Author URI: https://www.tipsandtricks-hq.com/
License: GPLv2 or later
Text Domain: https-redirection
Domain Path: /languages/
 */

// Prefix: ehssl_

if (!defined('ABSPATH')) {
    // Exit if accessed directly.
    exit;
}

define('EASY_HTTPS_SSL_VERSION', '2.0.0');
//define('EASY_HTTPS_SSL_DB_VERSION', '1.0');

// Load the core class.
include_once ( 'easy-https-ssl-core.php' );

// Activation hook.
register_activation_hook(__FILE__, array('Easy_HTTPS_SSL', 'plugin_activate_handler'));
// Deactivation hook
register_deactivation_hook(__FILE__, array('Easy_HTTPS_SSL', 'plugin_deactivate_handler'));

// Uninstall hook.
register_uninstall_hook(__FILE__, array('Easy_HTTPS_SSL', 'plugin_uninstall_handler'));

/**
 * Adds "Settings" link to the plugin action page
 */
function ehssl_plugin_action_links($links, $file)
{
    // Static so we don't call plugin_basename on every plugin row.
    static $this_plugin;
    if (!$this_plugin) {
        $this_plugin = plugin_basename(__FILE__);
    }

    if ($file == $this_plugin) {
        $settings_link = '<a href="admin.php?page=ehssl_settings">' . __('Settings', 'https-redirection') . '</a>';
        array_unshift($links, $settings_link);
    }
    return $links;
}
add_filter('plugin_action_links', 'ehssl_plugin_action_links', 10, 2);

/**
 * Additional links on the plugin page
 */
function ehssl_register_plugin_links($links, $file)
{
    $base = plugin_basename(__FILE__);
    if ($file == $base) {
        $links[] = '<a href="admin.php?page=ehssl_settings">' . __('Settings', 'https-redirection') . '</a>';
    }
    return $links;
}
add_filter('plugin_row_meta', 'ehssl_register_plugin_links', 10, 2);