ThinkPHPLibraryVendorGeetestGeetestlib.php
代码语言：javascript复制<?php
/**
* 极验行为式验证安全平台，php 网站主后台包含的库文件
*
* @author Tanxu
*/
class GeetestLib {
const GT_SDK_VERSION = 'php_3.0.0';
public static $connectTimeout = 1;
public static $socketTimeout = 1;
private $response;
public function __construct($captcha_id, $private_key) {
$this->captcha_id = $captcha_id;
$this->private_key = $private_key;
}
/**
* 判断极验服务器是否down机
*
* @param array $data
* @return int
*/
public function pre_process($param, $new_captcha=1) {
$data = array('gt'=>$this->captcha_id,
'new_captcha'=>$new_captcha
);
$data = array_merge($data,$param);
$query = http_build_query($data);
$url = "http://api.geetest.com/register.php?" . $query;
$challenge = $this->send_request($url);
if (strlen($challenge) != 32) {
$this->failback_process();
return 0;
}
$this->success_process($challenge);
return 1;
}
/**
* @param $challenge
*/
private function success_process($challenge) {
$challenge = md5($challenge . $this->private_key);
$result = array(
'success' => 1,
'gt' => $this->captcha_id,
'challenge' => $challenge,
'new_captcha'=>1
);
$this->response = $result;
}
/**
*
*/
private function failback_process() {
$rnd1 = md5(rand(0, 100));
$rnd2 = md5(rand(0, 100));
$challenge = $rnd1 . substr($rnd2, 0, 2);
$result = array(
'success' => 0,
'gt' => $this->captcha_id,
'challenge' => $challenge,
'new_captcha'=>1
);
$this->response = $result;
}
/**
* @return mixed
*/
public function get_response_str() {
return json_encode($this->response);
}
/**
* 返回数组方便扩展
*
* @return mixed
*/
public function get_response() {
return $this->response;
}
/**
* 正常模式获取验证结果
*
* @param string $challenge
* @param string $validate
* @param string $seccode
* @param array $param
* @return int
*/
public function success_validate($challenge, $validate, $seccode,$param, $json_format=1) {
if (!$this->check_validate($challenge, $validate)) {
return 0;
}
$query = array(
"seccode" => $seccode,
"timestamp"=>time(),
"challenge"=>$challenge,
"captchaid"=>$this->captcha_id,
"json_format"=>$json_format,
"sdk" => self::GT_SDK_VERSION
);
$query = array_merge($query,$param);
$url = "http://api.geetest.com/validate.php";
$codevalidate = $this->post_request($url, $query);
$obj = json_decode($codevalidate,true);
if ($obj === false){
return 0;
}
if ($obj['seccode'] == md5($seccode)) {
return 1;
} else {
return 0;
}
}
/**
* 宕机模式获取验证结果
*
* @param $challenge
* @param $validate
* @param $seccode
* @return int
*/
public function fail_validate($challenge, $validate, $seccode) {
if(md5($challenge) == $validate){
return 1;
}else{
return 0;
}
}
/**
* @param $challenge
* @param $validate
* @return bool
*/
private function check_validate($challenge, $validate) {
if (strlen($validate) != 32) {
return false;
}
if (md5($this->private_key . 'geetest' . $challenge) != $validate) {
return false;
}
return true;
}
/**
* GET 请求
*
* @param $url
* @return mixed|string
*/
private function send_request($url) {
if (function_exists('curl_exec')) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, self::$connectTimeout);
curl_setopt($ch, CURLOPT_TIMEOUT, self::$socketTimeout);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$curl_errno = curl_errno($ch);
$data = curl_exec($ch);
curl_close($ch);
if ($curl_errno >0) {
return 0;
}else{
return $data;
}
} else {
$opts = array(
'http' => array(
'method' => "GET",
'timeout' => self::$connectTimeout self::$socketTimeout,
)
);
$context = stream_context_create($opts);
$data = @file_get_contents($url, false, $context);
if($data){
return $data;
}else{
return 0;
}
}
}
/**
*
* @param $url
* @param array $postdata
* @return mixed|string
*/
private function post_request($url, $postdata = '') {
if (!$postdata) {
return false;
}
$data = http_build_query($postdata);
if (function_exists('curl_exec')) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, self::$connectTimeout);
curl_setopt($ch, CURLOPT_TIMEOUT, self::$socketTimeout);
//不可能执行到的代码
if (!$postdata) {
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
} else {
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
}
$data = curl_exec($ch);
if (curl_errno($ch)) {
$err = sprintf("curl[%s] error[%s]", $url, curl_errno($ch) . ':' . curl_error($ch));
$this->triggerError($err);
}
curl_close($ch);
} else {
if ($postdata) {
$opts = array(
'http' => array(
'method' => 'POST',
'header' => "Content-type: application/x-www-form-urlencodedrn" . "Content-Length: " . strlen($data) . "rn",
'content' => $data,
'timeout' => self::$connectTimeout self::$socketTimeout
)
);
$context = stream_context_create($opts);
$data = file_get_contents($url, false, $context);
}
}
return $data;
}
/**
* @param $err
*/
private function triggerError($err) {
trigger_error($err);
}
}AppHomeCommonfunction.php
代码语言：javascript复制function VerifyLoginServlet($geetest_challenge,$geetest_validate,$geetest_seccode){
vendor("Geetest.Geetestlib");
$GtSdk=new GeetestLib(C('CAPTCHA_ID'), C('PRIVATE_KEY'));
$data = array(
"user_id" => session_id(), # 网站用户id
"client_type" => "web", #web:电脑上的浏览器；h5:手机上的浏览器，包括移动应用内完全内置的web_view；native：通过原生SDK植入APP应用的方式
"ip_address" => get_client_ip() # 请在此处传输用户请求验证时所携带的IP
);
if (session('gtserver')==1){//服务器正常
$result = $GtSdk->success_validate($geetest_challenge,$geetest_validate,$geetest_seccode, $data);
if ($result) {
return true;
} else{
return false;
}
}else {//服务器宕机,走failback模式
$result = $GtSdk->success_validate($geetest_challenge,$geetest_validate,$geetest_seccode, $data);
if ($result) {
return true;
} else{
return false;
}
}
}在页面引入<script src="__PUBLIC__/Home/js/gt.js"></script>
代码语言：javascript复制 var handlerEmbed = function (captchaObj) {
captchaObj.appendTo("#captcha-box");
$('#submitbtn').click(function(e) {
var validate = captchaObj.getValidate();
if (!validate) {
layer.msg("请先完成验证",{icon: 5});
return false;
}
$("form").ajaxSubmit({
type: 'post',
url: "{:U('Home/login/loginCheck')}",
success: function(data) {
if(data==true){
layer.alert("登录成功",{ icon: 4, time: 1000 });
window.location.href='{:U('Home/Member/index')}';
}else{
layer.alert(data,{ icon: 5, time: 1000 });
captchaObj.reset();
}
},
});
return false;
})
};
$.ajax({
url: "{:U('Login/StartCaptchaServlet')}?t=" (new Date()).getTime(), // 加随机数防止缓存
type: "get",
dataType: "json",
success: function (data) {
initGeetest({
gt: data.gt,
challenge: data.challenge,
new_captcha: data.new_captcha,
product: "embed", // 产品形式，包括：float，embed，popup。注意只对PC版验证码有效
offline: !data.success, // 表示用户后台检测极验服务器是否宕机，一般不需要关注
width: '100%'
// 更多配置参数请参见：http://www.geetest.com/install/sections/idx-client-sdk.html#config
}, handlerEmbed);
}
});AppHomeControllerLoginController.class.php
代码语言：javascript复制 /*
* 极验验证码
* 2017年9月15日 14:02:23
*/
public function StartCaptchaServlet(){
vendor("Geetest.Geetestlib");
$GtSdk=new GeetestLib(C('CAPTCHA_ID'), C('PRIVATE_KEY'));
$data = array(
"user_id" => session_id(), # 网站用户id
"client_type" => "web", #web:电脑上的浏览器；h5:手机上的浏览器，包括移动应用内完全内置的web_view；native：通过原生SDK植入APP应用的方式
"ip_address" => get_client_ip() # 请在此处传输用户请求验证时所携带的IP
);
$status = $GtSdk->pre_process($data, 1);
session('gtserver',$status);
session('user_id',$data['user_id']);
echo $GtSdk->get_response_str();
exit();
}AppCommonConfconfig.php
代码语言：javascript复制<?php
return array(
//'配置项'=>'配置值'
//极验配置
'CAPTCHA_ID' =>'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
'PRIVATE_KEY' =>'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
);<!--给合适的地方加上验证码容器-->
<div id="captcha-box"></div>
