class JSSDK {
private $appId;
private $appSecret;
private $url;//如果是前后端分离，是接口请求，必须自定义当前页面地址 送过来 否则签名错误20190905
public function __construct($appId, $appSecret,$url) {
$this->appId = $appId;
$this->appSecret = $appSecret;
$this->url = $url;
}
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public function getSignPackage() {
$jsapiTicket = $this->getJsApiTicket();
// 注意 URL 一定要动态获取，不能 hardcode.如果是前后端分离，是接口请求，必须自定义当前页面地址 否则签名错误20190905
$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
//$url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$url = $this->url;
$timestamp = time();
$nonceStr = $this->createNonceStr();
// 这里参数的顺序要按照 key 值 ASCII 码升序排序
$string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr×tamp=$timestamp&url=$url";
$signature = sha1($string);
$signPackage = array(
"appId" => $this->appId,
"nonceStr" => $nonceStr,
"timestamp" => $timestamp,
"url" => $url,
"signature" => $signature,
"rawString" => $string
);
return $signPackage; }
private function createNonceStr($length = 16) {
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
private function getJsApiTicket() {
// jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例
$data = json_decode($this->get_php_file("jsapi_ticket.php"));
if ($data->expire_time < time()) {
$accessToken = $this->getAccessToken();
// 如果是企业号用以下 URL 获取 ticket
// $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
$res = json_decode($this->httpGet($url));
$ticket = $res->ticket;
if ($ticket) {
$data->expire_time = time() + 7000;
$data->jsapi_ticket = $ticket;
$this->set_php_file("jsapi_ticket.php", json_encode($data));
}
} else {
$ticket = $data->jsapi_ticket;
}
return $ticket;}
private function getAccessToken() {
// access_token 应该全局存储与更新，以下代码以写入到文件中做示例
$data = json_decode($this->get_php_file("access_token.php"));
if ($data->expire_time < time()) {
// 如果是企业号用以下URL获取access_token
// $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
$res = json_decode($this->httpGet($url));
$access_token = $res->access_token;
if ($access_token) {
$data->expire_time = time() + 7000;
$data->access_token = $access_token;
$this->set_php_file("access_token.php", json_encode($data));
}
} else {
$access_token = $data->access_token;
}
return $access_token;}
private function httpGet($url) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 500);
// 为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。
// 如果在部署过程中代码在此处验证失败，请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_URL, $url);
$res = curl_exec($curl);
curl_close($curl);
return $res;}
private function get_php_file($filename) {
return trim(substr(file_get_contents($filename), 15));
}
private function set_php_file($filename, $content) {
$fp = fopen($filename, "w");
fwrite($fp, "" . $content);
fclose($fp);
}
}
==============接口方法
/**
获取jssdk
*/
public function getjssdk(Request $request)
{
$requestData = $request->all();
var_dump($requestData);die;
$jssdk = new \JSSDK("wxed179f31e9bd43e5", "d1cd540d0********90284e7d3231");
$signPackage = $jssdk->GetSignPackage();
$returnData = Result::getResult(1, "获取成功", $signPackage);
return json_encode($returnData);}
==============前端
// 获取jssdk
getJssdk() {
//console.log(top.location.href,'999999');
this.myurl.url = top.location.href;
getReqData('phone/mail/getjssdk',this.myurl).then(res => {
console.log(res);
var resdata =res.data;
wx.config({
debug: true,
appId: resdata.appId,
timestamp:resdata.timestamp ,
nonceStr:resdata.nonceStr ,
signature:resdata.signature ,
jsApiList: [
// 所有要调用的 API 都要加到这个列表中
"checkJsApi",
'onMenuShareTimeline', // 分享到朋友圈接口
'onMenuShareAppMessage', // 分享到朋友
'onMenuShareQQ', // 分享到QQ接口
'onMenuShareWeibo', // 分享到微博接口
'openLocation'
]
})
wx.ready(function (){
var shareData = {
title: '国酒茅台',
desc: '国酒茅台已经更名，但是国酒名不虚传，喜欢就多喝，因为，很贵',//这里请特别注意是要去除html
link: 'http://tapi.1qibang.cn/qbb_move/webpage/index.html',
imgUrl: '/upload/otherpica43/4341.jpg'
};
wx.onMenuShareAppMessage(shareData);
});
})
},
