企业微信推送suite_ticket和验证回调URL

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tp5框架下的代码片段

    /**
     * 验证回调URL
     * 推送suite_ticket
     */
    public function getSuiteTicket(){
        $encodingAesKey = "";
        $token = "";
        $corpId = "";//  企业ID
        $suiteId = '';//  应用id

        $sVerifyMsgSig = $_GET['msg_signature'];
        $sVerifyTimeStamp = $_GET['timestamp'];

        $sVerifyNonce = $_GET['nonce'];
        include_once EXTEND_PATH."Weixin/WXBizMsgCrypt.php";
        if(!empty($_GET['echostr'])){
            $sVerifyEchoStr = $_GET['echostr'];
            $sEchoStr = "";
            $wxcpt = new \WXBizMsgCrypt($token, $encodingAesKey, $corpId);
            $errCode = $wxcpt->VerifyURL($sVerifyMsgSig, $sVerifyTimeStamp, $sVerifyNonce, $sVerifyEchoStr, $sEchoStr);
            if ($errCode == 0) {
                // 验证URL成功，将sEchoStr返回
                echo $sEchoStr;
                exit;
            } else {
                print("ERR: " . $errCode . "\n\n");
            }
        }
        file_put_contents(RUNTIME_PATH."tmp.txt", $_SERVER['REQUEST_METHOD'], FILE_APPEND);
        file_put_contents(RUNTIME_PATH."tmp.txt", file_get_contents("php://input"), FILE_APPEND);
        //判断企业微后台是否推送suite_ticket到该url，post形式
        if($_SERVER['REQUEST_METHOD'] === 'POST' ){
            //必须通过输入流方式获取post数据,，接收到的$sReqData 为xml格式，需转换成对象或其他格式
            $sReqData = file_get_contents("php://input");
            $xml =  simplexml_load_string($sReqData,'SimpleXMLElement', LIBXML_NOCDATA); //  xml格式转成对象
            $ToUserName = $xml->ToUserName; 
            if($suiteId == $ToUserName){ //证明是企业微信后台推送
                include_once EXTEND_PATH."Weixin/WXBizMsgCrypt.php";
                $wxcpt = new \WXBizMsgCrypt($token, $encodingAesKey, $ToUserName);
                $sMsg     = '';  // 解析之后的明文
                $err_code = $wxcpt->DecryptMsg($sVerifyMsgSig, $sVerifyTimeStamp, $sVerifyNonce, $sReqData, $sMsg);
                $xmls = simplexml_load_string($sMsg,'SimpleXMLElement', LIBXML_NOCDATA); //  xml格式转成对象
                if($err_code == 0){
                    switch ($xmls->InfoType) {
                        case 'suite_ticket'://推送suite_ticket协议每十分钟微信推送一次
                            $xmls = json_decode(json_encode($xmls), 1);
                            $suite_ticket = $xmls['SuiteTicket'];
                            if (!empty($suite_ticket)) {
                                //  保存下获取到数据
                                Cache::set("SuiteTicket", $suite_ticket);
                                echo 'success';  // 返回企业微信消息 success
                            }
                            else {
                                echo 200;//错误信息
                            }
                            break;
                    }
                }
            }
        }
        exit;
    }