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<?php /** * Library functions * * @package wp-fail2ban * @since 4.2.0 / namespace org\lecklider\charles\wordpress\wp_fail2ban\feature; use function org\lecklider\charles\wordpress\wp_fail2ban\openlog; use function org\lecklider\charles\wordpress\wp_fail2ban\syslog; use function org\lecklider\charles\wordpress\wp_fail2ban\closelog; defined('ABSPATH') or exit; /* * Register plugin * * @since 4.2.0 * * @param string $slug Plugin slug. This must be the actual plugin slug. Maximum length is 255 which should be more than enough. * @param string $name Plugin display name. This should be an unescaped string - HTML is allowed. * * @return int\|false ID / function register_plugin($slug, $name) { global $wp_fail2ban; if (255 < strlen($slug)) { throw new \LengthException('slug too long'); } if (255 < strlen($name)) { throw new \LengthException('name too long'); } if (!array_key_exists('plugins', $wp_fail2ban) \|\| !is_array($wp_fail2ban['plugins'])) { $wp_fail2ban['plugins'] = []; //@codeCoverageIgnore } if (array_key_exists($slug, $wp_fail2ban['plugins'])) { return $wp_fail2ban['plugins'][$slug]; } if (is_null($rv = apply_filters(__FUNCTION__, null, $slug, $name))) { static $id = 0; return ($wp_fail2ban['plugins'][$slug] = [ 'id' => ++$id, 'name' => $name, 'messages' => [] ]); } else { return $rv; // @codeCoverageIgnore } } /* * Check if plugin is registered. * * @since 4.2.0 * * @param string $plugin_slug * * @return bool / function is_registered_plugin($plugin_slug) { global $wp_fail2ban; return (array_key_exists('plugins', $wp_fail2ban) && is_array($wp_fail2ban['plugins']) && array_key_exists($plugin_slug, $wp_fail2ban['plugins'])); } /* * Register plugin message. * * @since 4.2.0 * * @param string $plugin_slug * @param array $msg [ * string slug: Message slug * string fail: hard\|soft\|extra * int facility: syslog facility * int priority: syslog priority * string event_class: Event Class * int event_id: Event ID * string message: Message with placeholders * HOST: Remote IP * USER: Current user name * array vars: Array of [name => regex] pairs / function register_message($plugin_slug, array $msg) { global $wp_fail2ban; $event_classes = [ 'auth' => WPF2B_EVENT_CLASS_AUTH, 'comment' => WPF2B_EVENT_CLASS_COMMENT, 'password' => WPF2B_EVENT_CLASS_PASSWORD, 'rest' => WPF2B_EVENT_CLASS_REST, 'spam' => WPF2B_EVENT_CLASS_SPAM, 'xmlrpc' => WPF2B_EVENT_CLASS_XMLRPC, 'other' => 0 ]; $args = []; if (!is_registered_plugin($plugin_slug)) { throw new \InvalidArgumentException('plugin not registered'); } if (!array_key_exists('slug', $msg)) { throw new \InvalidArgumentException("Missing 'slug'"); } if (!is_string($msg['slug'])) { throw new \InvalidArgumentException("'slug' must be string"); } if (!array_key_exists('fail', $msg)) { throw new \InvalidArgumentException("Missing 'fail'"); } if (!in_array($msg['fail'], ['hard', 'soft', 'extra'])) { throw new \UnexpectedValueException("'fail' must be one of 'hard', 'soft', 'extra'"); } $args['fail'] = $msg['fail']; if (!array_key_exists('priority', $msg)) { throw new \InvalidArgumentException("Missing 'priority'"); } if (!in_array($msg['priority'], [ LOG_CRIT, LOG_ERR, LOG_WARNING, LOG_NOTICE, LOG_INFO, LOG_DEBUG ])) { throw new \UnexpectedValueException("Invalid 'priority'"); } $args['priority'] = $msg['priority']; if (!array_key_exists('event_class', $msg)) { throw new \InvalidArgumentException("Missing 'event_class'"); } if (!array_key_exists($event_class = strtolower($msg['event_class']), $event_classes)) { throw new \UnexpectedValueException("Invalid 'event_class'"); } $args['class'] = $event_class; $event_class = $event_classes[$event_class]; if (!array_key_exists('event_id', $msg)) { throw new \InvalidArgumentException("Missing 'event_id'"); } if (($msg['event_id'] & 0x0000FFFF) !== $msg['event_id']) { throw new \UnexpectedValueException("Invalid 'event_id'"); } $args['event_id'] = WPF2B_EVENT_TYPE_PLUGIN \| $event_class \| $msg['event_id']; if (!array_key_exists('message', $msg)) { throw new \InvalidArgumentException("Missing 'message'"); } if (!is_string($msg['message'])) { throw new \UnexpectedValueException("Invalid 'message'"); } $args['message'] = $msg['message']; if (!array_key_exists('vars', $msg)) { throw new \InvalidArgumentException("Missing 'vars'"); } if (!is_array($msg['vars'])) { throw new \UnexpectedValueException("Invalid 'vars'"); } $args['vars'] = $msg['vars']; $wp_fail2ban['plugins'][$plugin_slug]['messages'][$msg['slug']] = $args; } /* * Check if message is registered. * * NB: Assumes plugin is registered. * * @since 4.2.0 * * @param string $plugin_slug * @param string $message_slug * * @return bool / function is_registered_plugin_message($plugin_slug, $message_slug) { global $wp_fail2ban; return array_key_exists($message_slug, $wp_fail2ban['plugins'][$plugin_slug]['messages']); } /* * Log plugin message. * * @since 4.2.0 * * @param string $plugin_slug Plugin slug for registered message * @param string $message_slug Message slug for registered message * @param array $vars Substitution vars */ function log_message($plugin_slug, $message_slug = null, array $vars = []) { global $wp_fail2ban; if (!is_registered_plugin($plugin_slug)) { throw new \InvalidArgumentException('plugin not registered'); } if (!is_registered_plugin_message($plugin_slug, $message_slug)) { throw new \InvalidArgumentException('message not registered'); } $args = $wp_fail2ban['plugins'][$plugin_slug]['messages'][$message_slug]; $msg = $args['message']; foreach (array_keys($args['vars']) as $name) { if (array_key_exists($name, $vars)) { $msg = str_replace("___{$name}___", $vars[$name], $msg); } } if (openlog(sprintf('WP_FAIL2BAN_PLUGIN_%s_LOG', strtoupper($args['class'])))) { syslog($args['priority'], "($plugin_slug) $msg"); closelog(); } do_action(__FUNCTION__, $plugin_slug, $message_slug, $vars, $args); }

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