mirror of
https://gh.wpcy.net/https://github.com/webguyio/dam-spam.git
synced 2026-05-25 03:03:57 +08:00
64 lines
No EOL
1.7 KiB
PHP
64 lines
No EOL
1.7 KiB
PHP
<?php
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if ( !defined( 'ABSPATH' ) ) {
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status_header( 404 );
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exit;
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}
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// last updated from https://www.cloudflare.com/ips/ on 2/29/24
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class dam_spam_check_cloudflare extends dam_spam_module {
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public function process( $ip, &$stats = array(), &$options = array(), &$post = array() ) {
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if ( function_exists( 'cloudflare_init' ) ) {
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return false;
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}
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if ( !array_key_exists( 'HTTP_CF_CONNECTING_IP', $_SERVER ) ) {
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return false;
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}
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$ip4ranges = array(
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'103.21.244.0/22',
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'103.22.200.0/22',
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'103.31.4.0/22',
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'104.16.0.0/13',
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'104.24.0.0/14',
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'108.162.192.0/18',
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'131.0.72.0/22',
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'141.101.64.0/18',
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'162.158.0.0/15',
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'172.64.0.0/13',
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'173.245.48.0/20',
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'188.114.96.0/20',
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'190.93.240.0/20',
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'197.234.240.0/22',
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'198.41.128.0/17',
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);
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$ip6ranges = array(
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'2400:cb00::/32',
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'2405:8100::/32',
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'2405:b500::/32',
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'2606:4700::/32',
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'2803:f800::/32',
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'2a06:98c0::/29',
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'2c0f:f248::/32',
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);
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$bin_ip = inet_pton( $ip );
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if ( $bin_ip === false ) {
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return false;
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}
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$cf_ranges = strlen( $bin_ip ) === 4 ? $ip4ranges : $ip6ranges;
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$len = strlen( $bin_ip );
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foreach ( $cf_ranges as $range ) {
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list( $net, $bits ) = explode( '/', $range, 2 );
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$bin_net = inet_pton( $net );
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if ( $bin_net === false || strlen( $bin_net ) !== $len ) {
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continue;
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}
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$mask = str_repeat( "\xff", (int) ( $bits / 8 ) ) . ( $bits % 8 ? chr( 0xff << ( 8 - $bits % 8 ) ) : '' );
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$mask = str_pad( $mask, $len, "\x00" );
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if ( ( $bin_ip & $mask ) === ( $bin_net & $mask ) ) {
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$_SERVER['REMOTE_ADDR'] = isset( $_SERVER['HTTP_CF_CONNECTING_IP'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_CF_CONNECTING_IP'] ) ) : '';
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return false;
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}
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}
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return false;
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}
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} |
