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hero920103
2025-11-28 10:08:12 +08:00
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includes/lib/GeetestLib.php
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<?php
namespace lib;
/**
* 极验3.0 lib
*/
class GeetestLib
{
const SDK_VERSION = 'php_3.0.0';
const JSON_FORMAT = "1";
private $geetest_id;
private $geetest_key;
public function __construct($geetest_id, $geetest_key) {
$this->geetest_id = $geetest_id;
$this->geetest_key = $geetest_key;
}
//验证初始化
public function pre_process($params) {
if(!empty($this->geetest_id) && !empty($this->geetest_key)){
return $this->pre_process_api($params);
}else{
return $this->pre_process_demo($params);
}
}
private function pre_process_api($params) {
$public_params = [
'digestmod' => 'md5',
'gt' => $this->geetest_id,
'sdk' => self::SDK_VERSION,
'json_format' => self::JSON_FORMAT
];
$params = array_merge($params, $public_params);
$url = 'http://api.geetest.com/register.php?' . http_build_query($params);
$res = get_curl($url);
$arr = json_decode($res, true);
if($arr && isset($arr['challenge'])){
return $this->success_process($arr['challenge']);
}else{
return $this->failback_process();
}
}
private function success_process($challenge) {
$challenge = md5($challenge . $this->geetest_key);
$result = array(
'success' => 1,
'gt' => $this->geetest_id,
'challenge' => $challenge,
'new_captcha'=>true
);
return $result;
}
private function failback_process() {
$challenge = md5(uniqid(mt_rand(), true) . microtime());
$result = array(
'success' => 0,
'gt' => !empty($this->geetest_id) ? $this->geetest_id : 'e10adc3949ba59abbe56e057f20f883e',
'challenge' => $challenge,
'new_captcha'=>true
);
return $result;
}
private function pre_process_demo($params) {
$url = 'https://www.geetest.com/demo/gt/register-fullpage?t=' . time() . "123";
$referer = 'https://www.geetest.com/demo/slide-popup.html';
$data = get_curl($url, 0, $referer);
$arr = json_decode($data, true);
if($arr && isset($arr['challenge'])){
return $arr;
}else{
return $this->failback_process();
}
}
//正常流程下（即验证初始化成功），二次验证
public function success_validate($challenge, $validate, $seccode, $params) {
if(!empty($this->geetest_id) && !empty($this->geetest_key)){
return $this->success_validate_api($challenge, $validate, $seccode, $params);
}else{
return $this->success_validate_demo($challenge, $validate, $seccode);
}
}
private function success_validate_api($challenge, $validate, $seccode, $params) {
if (!$this->check_validate($challenge, $validate)) {
return false;
}
$public_params = [
'seccode' => $seccode,
'challenge' => $challenge,
'captchaid' => $this->geetest_id,
'sdk' => self::SDK_VERSION,
'json_format' => self::JSON_FORMAT
];
$params = array_merge($params, $public_params);
$url = 'http://api.geetest.com/validate.php';
$res = get_curl($url, http_build_query($params));
$arr = json_decode($res, true);
if($arr && isset($arr['seccode'])){
if($arr['seccode'] == md5($seccode)){
return true;
}
}
return false;
}
private function check_validate($challenge, $validate) {
if (strlen($validate) != 32) {
return false;
}
if (md5($this->geetest_key . 'geetest' . $challenge) != $validate) {
return false;
}
return true;
}
private function success_validate_demo($challenge, $validate, $seccode) {
$params = [
'geetest_challenge' => $challenge,
'geetest_validate' => $validate,
'geetest_seccode' => $seccode
];
$url = 'https://www.geetest.com/demo/gt/validate-fullpage';
$referer = 'https://www.geetest.com/demo/slide-popup.html';
$data = get_curl($url, http_build_query($params), $referer);
$arr = json_decode($data, true);
if($arr && $arr['status'] == 'success'){
return true;
}
return false;
}
//异常流程下（即验证初始化失败，宕机模式），二次验证
public function fail_validate($challenge, $validate, $seccode) {
if(md5($challenge) == $validate){
return true;
}else{
return false;
}
}
public function gt4_validate($captcha_id, $lot_number, $pass_token, $gen_time, $captcha_output) {
if(!empty($this->geetest_id) && !empty($this->geetest_key)){
return $this->gt4_validate_api($captcha_id, $lot_number, $pass_token, $gen_time, $captcha_output);
}else{
return $this->gt4_validate_demo($captcha_id, $lot_number, $pass_token, $gen_time, $captcha_output);
}
}
private function gt4_validate_api($captcha_id, $lot_number, $pass_token, $gen_time, $captcha_output){
$url = 'http://gcaptcha4.geetest.com/validate?captcha_id='.$captcha_id;
$param = [
'lot_number' => $lot_number,
'pass_token' => $pass_token,
'gen_time' => $gen_time,
'captcha_output' => $captcha_output
];
$param['sign_token'] = hash_hmac('sha256', $param['lot_number'], $this->geetest_key);
$data = get_curl($url, http_build_query($param));
$arr = json_decode($data, true);
if(isset($arr['status']) && $arr['status']=='success'){
if(isset($arr['result']) && $arr['result'] == 'success'){
return true;
}
}
return false;
}
private function gt4_validate_demo($captcha_id, $lot_number, $pass_token, $gen_time, $captcha_output){
global $clientip;
$url = 'http://gt4.geetest.com/demov4/demo/login';
$param = [
'captcha_id' => $captcha_id,
'lot_number' => $lot_number,
'pass_token' => $pass_token,
'gen_time' => $gen_time,
'captcha_output' => $captcha_output
];
$referer = 'http://gt4.geetest.com/demov4/invisible-bind-zh.html';
$httpheader[] = "X-Real-IP: ".$clientip;
$httpheader[] = "X-Forwarded-For: ".$clientip;
$data = get_curl($url.'?'.http_build_query($param),0,$referer,0,0,0,0,$httpheader);
$arr = json_decode($data, true);
if(isset($arr['result']) && $arr['result'] == 'success'){
return true;
}
return false;
}
}