Initial commit

2023-09-28 16:21:06 +08:00
parent 498772eb04
commit ba7be004c0
640 changed files with 87745 additions and 0 deletions
@@ -0,0 +1,146 @@
+<?php
+namespace app\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'        => $this->geetest_id,
+            '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;
+        }
+    }
+}