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<?php
/*
* SITESEO
* https://siteseo.io
* (c) SiteSEO Team
*/
namespace SiteSEO;
if(!defined('ABSPATH')){
die('HACKING ATTEMPT!');
}
class InstantIndexing{
static function bing_txt_file(){
global $wp, $siteseo;
$request = home_url($wp->request);
if(empty($request)){
return;
}
$api_key = $siteseo->instant_settings['instant_indexing_bing_api_key'];
$api_url = trailingslashit(home_url()) . $api_key . '.txt';
if($request == $api_url){
header('X-Robots-Tag: noindex');
header('Content-Type: text/plain');
status_header(200);
esc_html_e($api_key);
die();
}
}
static function submit_urls_to_google($urls){
$access_token = self::get_google_auth_token();
if(empty($access_token)){
return;
}
$boundary = mt_rand();
$batch_body = '';
$options = get_option('siteseo_instant_indexing_option_name');
$type = !empty($options['instant_indexing_google_action']) ? $options['instant_indexing_google_action'] : 'URL_UPDATED';
switch($type){
case 'remove_urls':
$type = 'URL_DELETED';
break;
case 'update_urls':
$type = 'URL_UPDATED';
break;
}
// Creating a batch request
foreach($urls as $url){
$post_data = json_encode(['url' => $url, 'type' => $type]);
$batch_body .= '--'.$boundary.PHP_EOL;
$batch_body .= 'Content-Type: application/http'.PHP_EOL;
$batch_body .= 'Content-Transfer-Encoding: binary'.PHP_EOL;
$batch_body .= 'Content-ID: <'.esc_url($url).'>'.PHP_EOL.PHP_EOL;
$batch_body .= 'POST /v3/urlNotifications:publish HTTP/1.1'.PHP_EOL;
$batch_body .= 'Content-Type: application/json' . PHP_EOL;
$batch_body .= 'accept: application/json'.PHP_EOL;
$batch_body .= 'content-length: '.strlen($post_data).PHP_EOL.PHP_EOL;
$batch_body .= $post_data.PHP_EOL;
}
$batch_body .= '--'.$boundary.'--';
$response = wp_remote_post('https://indexing.googleapis.com/batch', [
'body' => $batch_body,
'headers' => [
'Content-Type' => 'multipart/mixed; boundary='.$boundary,
'Authorization' => 'Bearer ' . $access_token
],
'timeout' => 30
]);
if(is_wp_error($response)){
$response = ['error' => $response->get_error_message()];
return;
}
$res_code = wp_remote_retrieve_response_code($response);
if($res_code > 299){
return $response;
}
$batch_response = self::parse_batch_response($response);
$response = [
'status_code' => wp_remote_retrieve_response_code($response),
'urls' => $batch_response,
'error' => is_wp_error($response) ? $response->get_error_message() : null
];
return $response;
}
static function parse_batch_response(&$response){
$response_headers = wp_remote_retrieve_headers($response);
$response_headers = $response_headers->getAll();
$content_type = $response_headers['content-type'];
$urls = [];
$content_type = explode(';', $content_type);
$boundary = false;
foreach($content_type as $part){
$part = explode('=', $part, 2);
if (isset($part[0]) && 'boundary' == trim($part[0])) {
$boundary = $part[1];
}
}
$res_body = wp_remote_retrieve_body($response);
$res_body = str_replace('--'.$boundary.'--', '--'.$boundary, $res_body);
$batch_responses = explode('--'.$boundary, $res_body);
$batch_responses = array_filter($batch_responses);
foreach($batch_responses as $batch_response){
$batch_response = trim($batch_response);
if(empty($batch_response)){
continue;
}
$batch_response = explode("\r\n\r\n", $batch_response);
if(empty($batch_response[2])){
continue;
}
$batch_body = json_decode($batch_response[2], true);
if(empty($batch_body)){
continue;
}
if(!empty($batch_body['urlNotificationMetadata']) && !empty($batch_body['urlNotificationMetadata']['url'])){
$urls[] = sanitize_url($batch_body['urlNotificationMetadata']['url']);
}
}
return $urls;
}
static function get_google_auth_token(){
global $siteseo;
$endpoint = 'https://oauth2.googleapis.com/token';
$scope = 'https://www.googleapis.com/auth/indexing';
if(!function_exists('openssl_sign')){
return false;
}
$google_api_data = isset($siteseo->instant_settings['instant_indexing_google_api_key']) ? $siteseo->instant_settings['instant_indexing_google_api_key'] : '';
if(empty($google_api_data)){
return false;
}
$google_api_data = json_decode($google_api_data, true);
if(empty($google_api_data)){
return;
}
// Header
$headers = json_encode(['alg' => 'RS256', 'typ' => 'JWT']);
$headers = base64_encode($headers);
// Claim Set
$now = time();
$claims = json_encode([
'iss' => $google_api_data['client_email'],
'scope' => 'https://www.googleapis.com/auth/indexing',
'aud' => 'https://oauth2.googleapis.com/token',
'exp' => $now + 3600,
'iat' => $now
]);
$claims = base64_encode($claims);
// Make sure base64 encoding is URL-safe
$headers = str_replace(['+', '/', '='], ['-', '_', ''], $headers);
$claim = str_replace(['+', '/', '='], ['-', '_', ''], $claims);
// Sign the JWT with the private key
$signature_input = "$headers.$claim";
openssl_sign($signature_input, $signature, $google_api_data['private_key'], OPENSSL_ALGO_SHA256);
$signature = base64_encode($signature);
$signature = str_replace(['+', '/', '='], ['-', '_', ''], $signature);
// JWT Token
$jwt_assertion = "$signature_input.$signature";
// OAuth2 Request
$post_data = http_build_query([
'grant_type' => 'urn:ietf:params:oauth:grant-type:jwt-bearer',
'assertion' => $jwt_assertion
]);
$response = wp_remote_post($endpoint, [
'body' => $post_data,
'headers' => [
'Content-Type' => 'application/x-www-form-urlencoded',
]
]);
if(is_wp_error($response)){
return false;
}
$body = json_decode(wp_remote_retrieve_body($response), true);
return $body['access_token'] ?? false;
}
static function submit_urls_to_bing($urls, $api_key){
$host = parse_url(home_url(), PHP_URL_HOST);
$key_location = trailingslashit(home_url()) . $api_key . '.txt';
$endpoint = 'https://api.indexnow.org/indexnow/';
$body = wp_json_encode([
'host' => $host,
'key' => $api_key,
'keyLocation' => $key_location,
'urlList' => $urls
]);
$response = wp_remote_post($endpoint, [
'body' => $body,
'headers' => [
'Content-Type' => 'application/json',
'Accept' => 'application/json'
],
'timeout' => 30
]);
return [
'status_code' => wp_remote_retrieve_response_code($response),
'body' => wp_remote_retrieve_body($response)
];
}
}