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wordpress-anti-content-theft.php
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<?php
/**
* @package Stop_WordPress_Fake_Bots
* @version 0.1
*/
/*
Plugin Name: Stop WordPress Fake Bots
Plugin URI: https://github.com/areebmajeed/wordpress-anti-content-theft
Description: Tired of content theft? Use this simple plugin to protect your content, and put fake bots away from the scene.
Author: Areeb
Version: 0.1
Author URI: http://areebmajeed.me/
*/
function SWFB_get_IP() {
// check for shared internet/ISP IP
if (!empty($_SERVER['HTTP_CLIENT_IP']) && validate_ip($_SERVER['HTTP_CLIENT_IP'])) {
return $_SERVER['HTTP_CLIENT_IP'];
}
// check for IPs passing through proxies
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
// check if multiple ips exist in var
if (strpos($_SERVER['HTTP_X_FORWARDED_FOR'], ',') !== false) {
$iplist = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
foreach ($iplist as $ip) {
if (validate_ip($ip)) return $ip;
}
}
else {
if (SWFB_validate_ip($_SERVER['HTTP_X_FORWARDED_FOR'])) return $_SERVER['HTTP_X_FORWARDED_FOR'];
}
}
if (!empty($_SERVER['HTTP_X_FORWARDED']) && SWFB_validate_ip($_SERVER['HTTP_X_FORWARDED'])) return $_SERVER['HTTP_X_FORWARDED'];
if (!empty($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']) && SWFB_validate_ip($_SERVER['HTTP_X_CLUSTER_CLIENT_IP'])) return $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
if (!empty($_SERVER['HTTP_FORWARDED_FOR']) && SWFB_validate_ip($_SERVER['HTTP_FORWARDED_FOR'])) return $_SERVER['HTTP_FORWARDED_FOR'];
if (!empty($_SERVER['HTTP_FORWARDED']) && SWFB_validate_ip($_SERVER['HTTP_FORWARDED'])) return $_SERVER['HTTP_FORWARDED'];
// return unreliable ip since all else failed
return $_SERVER['REMOTE_ADDR'];
}
function SWFB_validate_ip($ip) {
if (strtolower($ip) === 'unknown') return false;
// generate ipv4 network address
$ip = ip2long($ip);
// if the ip is set and not equivalent to 255.255.255.255
if ($ip !== false && $ip !== - 1) {
// make sure to get unsigned long representation of ip
// due to discrepancies between 32 and 64 bit OSes and
// signed numbers (ints default to signed in PHP)
$ip = sprintf('%u', $ip);
// do private network range checking
if ($ip >= 0 && $ip <= 50331647) return false;
if ($ip >= 167772160 && $ip <= 184549375) return false;
if ($ip >= 2130706432 && $ip <= 2147483647) return false;
if ($ip >= 2851995648 && $ip <= 2852061183) return false;
if ($ip >= 2886729728 && $ip <= 2887778303) return false;
if ($ip >= 3221225984 && $ip <= 3221226239) return false;
if ($ip >= 3232235520 && $ip <= 3232301055) return false;
if ($ip >= 4294967040) return false;
}
return true;
}
function strposa($haystack, $needle, $offset = 0) {
if (!is_array($needle)) $needle = array(
$needle
);
foreach ($needle as $query) {
if (strpos($haystack, $query, $offset) !== false) {
return true;
}
return false;
}
}
function initSWFB() {
$ip_addr = SWFB_get_IP();
$crawlers = array(
"googlebot",
"bingbot",
"yandexbot",
"slurp"
);
$user_agent = $_SERVER['HTTP_USER_AGENT'];
$bad = true;
if (strposa(strtolower($user_agent) , $crawlers) == true) {
if (strpos(strtolower($user_agent) , "googlebot")) {
$validate = gethostbyaddr($ip_addr);
$second_validate = dns_get_record($validate);
if ($second_validate[0]['ip'] == $ip_addr && preg_match("/^(googlebot.com|google.com)/i", $validate)) {
$bad = false;
}
}
if (strpos(strtolower($user_agent) , "bingbot")) {
$validate = gethostbyaddr($ip_addr);
$second_validate = dns_get_record($validate);
if ($second_validate[0]['ip'] == $ip_addr && preg_match("/^(bing.com|msn.com)/i", $validate)) {
$bad = false;
}
}
if (strpos(strtolower($user_agent) , "yandexbot")) {
$validate = gethostbyaddr($ip_addr);
$second_validate = dns_get_record($validate);
if ($second_validate[0]['ip'] == $ip_addr && preg_match("/^(yandex.net|yandex.ru|yandex.com)/i", $validate)) {
$bad = false;
}
}
if (strpos(strtolower($user_agent) , "slurp")) {
$validate = gethostbyaddr($ip_addr);
$second_validate = dns_get_record($validate);
if ($second_validate[0]['ip'] == $ip_addr && preg_match("/^(crawl.yahoo.com|crawl.yahoo.net)/i", $validate)) {
$bad = false;
}
}
if (strpos(strtolower($user_agent) , "baiduspider")) {
$validate = gethostbyaddr($ip_addr);
$second_validate = dns_get_record($validate);
if ($second_validate[0]['ip'] == $ip_addr && preg_match("/^(baidu.com|baidu.jp)/i", $validate)) {
$bad = false;
}
}
if (strpos(strtolower($user_agent) , "DuckDuckBot")) {
if (in_array($ip_addr, array(
"72.94.249.34",
"72.94.249.35",
"72.94.249.36",
"72.94.249.37",
"72.94.249.38"
))) {
$bad = false;
}
}
}
else {
$bad = false;
}
$bots_array = array(
'alexibot',
'aqua_products',
'b2w',
'backdoorbot',
'blackhole',
'blowfish',
'bookmarksearchtool',
'botalot',
'builtbottough',
'bullseye',
'bunnyslippers',
'cegbfeieh',
'cheesebot',
'cherrypicker',
'cherrypickerelite',
'cherrypickerse',
'copernic',
'copyrightcheck',
'cosmos',
'crescent',
'crescentinternettoolpakhttpolecontrolv',
'dittospyder',
'dumbot',
'emailcollector',
'emailsiphon',
'emailwolf',
'enterprise_search',
'erocrawler',
'es',
'extractorpro',
'fairadclient',
'flamingattackbot',
'foobot',
'gaisbot',
'getright',
'grub',
'grub-client',
'harvest',
'hatenaantenna',
'hloader',
'httplib',
'humanlinks',
'ia_archiver',
'ia_archiver',
'infonavirobot',
'iron33',
'jennybot',
'kenjinspider',
'keyworddensity',
'larbin',
'lexibot',
'libweb/clshttp',
'libweb/clshttpuser-agent:asterias',
'linkextractorpro',
'linkscan',
'kenjinspider',
'linkwalker',
'lnspiderguy',
'lwp-trivial',
'matahari',
'microsofturlcontrol',
'microsofturlcontrol-5.01.4511',
'microsofturlcontrol-6.00.8169',
'miixpc',
'misterpix',
'moget',
'morfeus',
'msiecrawler',
'naver',
'netants',
'netmechanic',
'nicerspro',
'offlineexplorer',
'openbot',
'openfind',
'openfinddatagathere',
'oracleultrasearch',
'perman',
'propowerbot',
'prowebwalker',
'psbot',
'python-urllib',
'querynmetasearch',
'radiationretriever',
'repomonkey',
'repomonkeybait',
'rma',
'searchpreview',
'sitesnagger',
'sootle',
'spankbot',
'spanner',
'suzuran',
'szukacz',
'teleport',
'teleportpro',
'telesoft',
'theintraformant',
'thenomad',
'tighttwatbot',
'titan',
'tocrawl/urldispatcher',
'true_robot',
'turingos',
'urlcontrol',
'url_spider_pro',
'urlywarning',
'vci',
'vciwebviewervciwebviewerwin32',
'webimagecollector',
'webauto',
'webbandit',
'webbandit',
'webcopier',
'webenhancer',
'webmasterworldextractor',
'webmasterworldforumbot',
'websauger',
'websitequester',
'websterpro',
'webstripper',
'webzip',
'www-collector-e',
'xenu',
'zeus',
'zeus32297websterprov2.9win32',
'zeuslinkscout',
'zmeu',
'baidubot',
'fhscan',
'acunetix',
'zyborg'
);
if (strposa(strtolower($user_agent) , $bots_array) == true) {
$bad = true;
}
if ($bad == true) {
exit();
}
}
add_action('wp_loaded', 'initSWFB');
?>