Drop-in for IP Geo Block custom filters for admin

drop-in-admin.php

<?php
/**
 * Drop-in for IP Geo Block custom filters for admin
 *
 * This file should be named as `drop-in-admin.php`.
 *
 * @package   IP_Geo_Block
 * @author    tokkonopapa <tokkonopapa@yahoo.com>
 * @license   GPL-3.0
 * @link      http://www.ipgeoblock.com/
 * @see       http://www.ipgeoblock.com/codex/#filter-hooks
 * @example   Use `IP_Geo_Block::add_filter()` instead of `add_filter()`
 */
class_exists( 'IP_Geo_Block', FALSE ) or die;

/**
 * Analyze entries in "Validation logs"
 *
 * Each entry has an array:
 * Array (
 *     [0 DB row number] => 154
 *     [1 Target       ] => comment
 *     [2 Time         ] => 1534580897
 *     [3 IP address   ] => 102.177.147.***
 *     [4 Country code ] => ZA
 *     [5 Result       ] => blocked
 *     [6 AS number    ] => AS328239
 *     [7 Request      ] => POST[80]:/wp-comments-post.php
 *     [8 User agent   ] => Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) ...
 *     [9 HTTP headers ] => HTTP_ORIGIN=http://localhost,HTTP_X_FORWARDED_FOR=102.177.147.***
 *    [10 $_POST data  ] => comment=Hello.,author,email,url,comment_post_ID,comment_parent
 * )
 *
 * And put a mark at "Target"
 *    ¹¹: Passed  in Whitelist
 *    ¹²: Passed  in Blacklist
 *    ¹³: Passed  not in list
 *    ²¹: Blocked in Whitelist
 *    ²²: Blocked in Blacklist
 *    ²³: Blocked not in list
 */
function ip_geo_block_logs( $logs = array() ) {
	// Get settings of IP Geo Block
	$settings = IP_Geo_Block::get_option();

	// White/Black list for back-end
	$white_backend = $settings['white_list'];
	$black_backend = $settings['black_list'];

	// White/Black list for front-end
	if ( $settings['public']['matching_rule'] < 0 ) {
		// Follow "Validation rule settings"
		$white_frontend = $white_backend;
		$black_frontend = $black_backend;
	} else {
		// Whitelist or Blacklist for "Public facing pages"
		$white_frontend = $settings['public']['white_list'];
		$black_frontend = $settings['public']['black_list'];
	}

	foreach ( $logs as $key => $log ) {
		// Passed or Blocked
		$mark = IP_Geo_Block::is_passed( $log[5] ) ? '&sup1;' : '&sup2;';

		// Whitelisted, Blacklisted or N/A
		if ( 'public' === $log[1] ) {
			$mark .= IP_Geo_Block::is_listed( $log[4], $white_frontend ) ? '&sup1;' : (
			         IP_Geo_Block::is_listed( $log[4], $black_frontend ) ? '&sup2;' : '&sup3;' );
		} else {
			$mark .= IP_Geo_Block::is_listed( $log[4], $white_backend  ) ? '&sup1;' : (
			         IP_Geo_Block::is_listed( $log[4], $black_backend  ) ? '&sup2;' : '&sup3;' );
		}

		// Put a mark at "Target"
		$logs[ $key ][1] .= $mark;
	}

	return $logs;
}

IP_Geo_Block::add_filter( 'ip-geo-block-logs', 'ip_geo_block_logs' );

/**
 * Register UI "Preset filters" at "Search in logs"
 *
 * @param  array  An empty array by default.
 * @return array  The pare of 'title' and 'value'.
 */
function ip_geo_block_logs_preset( $filters = array() ) {
	return $filters + array(
		array( 'title' => 'Passed  in Whitelist', 'value' => '&sup1;&sup1;' ),
		array( 'title' => 'Passed  in Blacklist', 'value' => '&sup1;&sup2;' ),
		array( 'title' => 'Passed  not in list',  'value' => '&sup1;&sup3;' ),
		array( 'title' => 'Blocked in Whitelist', 'value' => '&sup2;&sup1;' ),
		array( 'title' => 'Blocked in Blacklist', 'value' => '&sup2;&sup2;' ),
		array( 'title' => 'Blocked not in list',  'value' => '&sup2;&sup3;' ),
	);
}

IP_Geo_Block::add_filter( 'ip-geo-block-logs-preset', 'ip_geo_block_logs_preset' );

Forum topic in WordPress.org: Request: Log filtering

Codex: ip-geo-block-logs[-preset]

An example of Preset filters: