Initial commit. Extracted from former pull request on Statify project

This commit is contained in:
Stefan Kalscheuer 2016-08-14 13:23:27 +02:00
commit 4005f936cd
5 changed files with 365 additions and 0 deletions

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<?php
/* Quit */
defined('ABSPATH') OR exit;
/**
* Statify Blacklist
*
* @since 1.0.0
*/
class StatifyBlacklist
{
/**
* Plugin options
*
* @since 1.0.0
*/
public static $_options;
public static $multisite;
/**
* Class self initialize
*
* @since 1.0.0
*/
public static function instance()
{
new self();
}
/**
* Class constructor
*
* @since 1.0.0
*/
public function __construct()
{
/* Skip on autosave or AJAX */
if ( (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) OR (defined('DOING_AJAX') && DOING_AJAX) ) {
return;
}
/* Plugin options */
self::update_options();
self::$multisite = (is_multisite() && array_key_exists(STATIFYBLACKLIST_BASE, (array)get_site_option('active_sitewide_plugins')));
/* Add Filter to statify hook */
add_filter('statify_skip_tracking', array('StatifyBlacklist', 'apply_blacklist_filter'));
/* Admin only filters */
if ( is_admin() ) {
add_action('wpmu_new_blog', array('StatifyBlacklist_Install', 'init_site'));
add_action('delete_blog', array('StatifyBlacklist_System', 'init_site'));
add_filter('plugin_row_meta', array('StatifyBlacklist_Admin', 'plugin_meta_link'), 10, 2);
if (is_multisite()) {
register_deactivation_hook(__FILE__, array('StatifyBlacklist_Admin', 'single_site_deactivate'));
add_action('network_admin_menu', array('StatifyBlacklist_Admin', '_add_menu_page'));
add_filter('network_admin_plugin_action_links', array('StatifyBlacklist_Admin', 'plugin_actions_links'), 10, 2);
} else {
add_action('admin_menu', array('StatifyBlacklist_Admin', '_add_menu_page'));
add_filter('plugin_action_links', array('StatifyBlacklist_Admin', 'plugin_actions_links'), 10, 2 );
}
}
}
/**
* Update options
*
* @since 1.0.0
*/
public static function update_options($options = null) {
if (isset($options)) {
if ((is_multisite() && array_key_exists(STATIFYBLACKLIST_BASE, (array)get_site_option('active_sitewide_plugins'))))
update_site_option('statify-blacklist', $options);
else
update_option('statify-blacklist', $options);
}
self::$_options = wp_parse_args(
get_option('statify-blacklist'),
array(
'active_referer' => 0,
'referer' => ''
)
);
}
/**
* Apply the blacklist filter if active
*
* @return TRUE if referer matches blacklist.
*
* @since 1.0.0
*/
public static function apply_blacklist_filter() {
/* Skip if blacklist is inactive */
if (self::$_options['active_referer'] != 1) {
return false;
}
/* Extract relevant domain parts */
$referer = strtolower( ( isset($_SERVER['HTTP_REFERER']) ? parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST) : '' ) );
$referer = explode('.', $referer);
if( count($referer) >1 )
$referer = implode('.', array_slice($referer, -2));
else
$referer = implode('.', $referer);
/* Get blacklist */
$blacklist = explode("\r\n", self::$_options['referer']);
/* Check blacklist */
return in_array($referer, $blacklist);
}
}

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<?php
class StatifyBlacklist_Admin extends StatifyBlacklist
{
public function _add_menu_page() {
$title = __( 'Statify Blacklist', 'statify-blacklist' );
if (self::$multisite)
add_submenu_page( 'settings.php', $title, $title, 'manage_network_plugins', 'statify-blacklist-settings', array('StatifyBlacklist_Admin', 'settings_page') );
else
add_submenu_page( 'options-general.php', $title, $title, 'manage_options', 'statify-blacklist', array('StatifyBlacklist_Admin', 'settings_page') );
}
public static function settings_page() {
include STATIFYBLACKLIST_DIR . '/views/settings_page.php';
}
/**
* Add plugin meta links
*
* @param $links
* @param $file
* @return array
*
* @since 1.0.0
*/
public static function plugin_meta_link($links, $file) {
if ($file == STATIFYBLACKLIST_BASE) {
$links[] = '<a href="https://github.com/stklcode/statify-blacklist">GitHub</a>';
}
return $links;
}
/**
* Add plugin action links
*
* @param array $input Registered links
* @return array Merged links
*
* @since 1.0.0
*/
public static function plugin_actions_links($links, $file)
{
$base = self::$multisite ? network_admin_url( 'settings.php' ) : admin_url( 'options-general.php' );
if( $file == STATIFYBLACKLIST_BASE && current_user_can('manage_options') ) {
array_unshift(
$links,
sprintf( '<a href="%s">%s</a>', esc_attr(add_query_arg( 'page', 'statify-blacklist', $base )), __('Settings'))
);
}
return $links;
}
}

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<?php
/* Quit */
defined('ABSPATH') OR exit;
/**
* Statify system configuration
*
* @since 1.0.0
*/
class StatifyBlacklist_System extends StatifyBlacklist
{
/**
* Plugin install handler.
*
* @since 1.0.0
*
* @param bool $network_wide Whether the plugin was activated network-wide or not.
*/
public static function install( $network_wide = false ) {
global $wpdb;
// Create tables for each site in a network.
if ( is_multisite() && $network_wide ) {
// Todo: Use get_sites() in WordPress 4.6+
$ids = $wpdb->get_col( "SELECT blog_id FROM `$wpdb->blogs`" );
foreach ( $ids as $site_id ) {
switch_to_blog( $site_id );
add_option(
'statify-blacklist',
array()
);
}
restore_current_blog();
} else {
add_option(
'statify-blacklist',
array()
);
}
}
/**
* Plugin deactivation actions
*
* @since 1.0.0
*/
public static function deactivate()
{
}
/**
* Plugin uninstall handler.
*
* @since 1.0.0
*/
public static function uninstall() {
global $wpdb;
if ( is_multisite() ) {
$old = get_current_blog_id();
// Todo: Use get_sites() in WordPress 4.6+
$ids = $wpdb->get_col( "SELECT blog_id FROM `$wpdb->blogs`" );
foreach ( $ids as $id ) {
switch_to_blog( $id );
delete_option('statify-blacklist');
}
switch_to_blog( $old );
}
delete_option('statify-blacklist');
}
}

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statifyblacklist.php Normal file
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<?php
/*
Plugin Name: Statify Blacklist
Description: Extension for the statify plugin to add a customizable blacklists.
Text Domain: statify-blacklist
Domain Path: /lang
Author: stklcode
Author URI: https://stklcode.de
Plugin URI: https://wordpress.org/plugins/statifyRefererBlacklist
License: GPLv3 or later
Version: 1.0.0
*/
/* Quit */
defined('ABSPATH') OR exit;
/* Constants */
define('STATIFYBLACKLIST_FILE', __FILE__);
define('STATIFYBLACKLIST_DIR', dirname(__FILE__));
define('STATIFYBLACKLIST_BASE', plugin_basename(__FILE__));
/* System Hooks */
add_action(
'plugins_loaded',
array(
'StatifyBlacklist',
'instance'
)
);
register_activation_hook(
STATIFYBLACKLIST_FILE,
array(
'StatifyBlacklist_System',
'install'
)
);
register_deactivation_hook(
STATIFYBLACKLIST_FILE,
array(
'StatifyBlacklist_System',
'deactivate'
)
);
register_uninstall_hook(
STATIFYBLACKLIST_FILE,
array(
'StatifyBlacklist_System',
'uninstall'
)
);
/* Autoload */
spl_autoload_register('statifyBlacklist_autoload');
function statifyBlacklist_autoload($class) {
$plugin_classes = array(
'StatifyBlacklist',
'StatifyBlacklist_Admin',
'StatifyBlacklist_System'
);
if ( in_array($class, $plugin_classes) ) {
require_once(
sprintf(
'%s/inc/%s.class.php',
STATIFYBLACKLIST_DIR,
strtolower($class)
)
);
}
}

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views/settings_page.php Normal file
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<?php
/* Update plugin options */
if ( ! empty($_POST['statifyblacklist']) ) {
StatifyBlacklist::update_options(
array(
'active_referer' => (int)@$_POST['statifyblacklist']['active_referer'],
'referer' => (string)@$_POST['statifyblacklist']['referer']
)
);
}
?>
<div class="wrap">
<h1><?php _e( 'Statify Blacklist', 'statify-blacklist') ?></h1>
<form action="" method="post" id="statify-blacklist-settings">
<ul style="list-style: none;">
<li>
<label for="statify-blacklist_active_referer">
<input type="checkbox" name="statifyblacklist[active_referer]" id="statifyblacklist_active_referer" value="1" <?php checked(StatifyBlacklist::$_options['active_referer'], 1); ?> />
<?php esc_html_e('Activate referer blacklist', 'statify-blacklist'); ?>
</label>
</li>
<li>
<label for="statify-blacklist_referer">
<?php esc_html_e('Referer blacklist:', 'statify-blacklist'); ?><br />
<textarea cols="40" rows="5" name="statifyblacklist[referer]" id="statify-blacklist_referer"><?php print StatifyBlacklist::$_options['referer']; ?></textarea><br />
<small>(<?php esc_html_e('Add one domain (without subdomains) each line, e.g. example.com', 'statify-blacklist'); ?>)</small>
</label>
</li>
</ul>
<?php wp_nonce_field('statify-blacklist-settings'); ?>
<p class="submit"><input class="button-primary" type="submit" name="submit" value="<?php _e('Save Changes') ?>"></p>
</form>
</div>