<?php

class PayController extends Controller
{
    private $product = [
        'price_1' => 10,
        'price_2' => 30,
        'price_3' => 88,
        'price_4' => 188,
        'price_5' => 388,
        'price_6' => 688,
    ];

    /**
     * 服务器二次验证代码
     * 21000 App Store不能读取你提供的JSON对象
     * 21002 receipt-data域的数据有问题
     * 21003 receipt无法通过验证
     * 21004 提供的shared secret不匹配你账号中的shared secret
     * 21005 receipt服务器当前不可用
     * 21006 receipt合法，但是订阅已过期。服务器接收到这个状态码时，receipt数据仍然会解码并一起发送
     * 21007 receipt是Sandbox receipt，但却发送至生产系统的验证服务
     * 21008 receipt是生产receipt，但却发送至Sandbox环境的验证服务
     */
    public function iapVerify()
    {
        if (IS_POST) {
            $receipt = $_POST['receipt'];//苹果发来的数据，base64的大字符串，一会发送给苹果进行二次验证，验证后会给你可读的json数据
            $orderid = $_POST['transactionId'];//苹果的订单号，拿来用即可，不会重复，类似'1000000123465272',
            //创建订单，使用苹果给的订单号
            $record = M('Recharge_log')->where("trade_no='%s'", $orderid)->find();
            if (empty($record)) {
                $data = array(
                    'uid' => $this->uid,
                    'trade_no' => $orderid,
                    'money' => 0,
                    'recharge_time' => time(),
                    'pay_type' => 'iap',
                );
                M('Recharge_log')->add($data);
            }
            $isSandbox = true;//沙箱是测试环境，正式环境改为false
            $info = $this->getReceiptData($receipt, $isSandbox);//去苹果进行二次验证，防止收到的是伪造的数据
            if (is_array($info) && $info['errNo'] == 0) {//没有错误就进行业务逻辑的处理，订单设置成已支付，给用户加钱
                $this->answer['status'] = 0;
                $this->answer['msg'] = '支付成功';
                if ($record['trade_status'] !== 'TRADE_FINISHED') {
                    $data['money'] = $this->product[$info['product_id']];//这个价格列表是你提交给苹果的，你参照本class的属性获得具体多少钱，苹果不会直接给你具体多少钱
                    $data['trade_status'] = 'TRADE_FINISHED';
                    $data['finish_time'] = time();
                    M('Recharge_log')->where("trade_no='%s'", $orderid)->save($data);
                    M('Users')->where('uid=' . $this->uid)->setInc('money', $this->product[$info['product_id']]);
                } else {
                    $this->answer['msg'] = '订单已支付';
                }
            } else {
                $this->answer['status'] = 0;
                $this->answer['msg'] = $info['errMsg'];
                $this->answer['data'] = array(
                    'errCode' => $info['errNo']
                );
            }
        }
        $this->response($this->answer);
    }

    //去苹果服务器二次验证代码
    protected function getReceiptData($receipt, $isSandbox = false)
    {
        if ($isSandbox) {
            $endpoint = 'https://sandbox.itunes.apple.com/verifyReceipt';//沙箱地址
        } else {
            $endpoint = 'https://buy.itunes.apple.com/verifyReceipt';//真实运营地址
        }
        $postData = json_encode(
            array('receipt-data' => $receipt)
        );
        $ch = curl_init($endpoint);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);  //这两行一定要加，不加会报SSL 错误
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        $response = curl_exec($ch);
        $errno = curl_errno($ch);
        //$errmsg   = curl_error($ch);
        curl_close($ch);

        if ($errno != 0) {//curl请求有错误
            return [
                'errNo' => 1,
                'errMsg' => '请求超时，请稍后重试',
            ];
        } else {
            $data = json_decode($response, true);
            if (!is_array($data)) {
                return [
                    'errNo' => 2,
                    'errMsg' => '苹果返回数据有误，请稍后重试',
                ];
            }
            //判断购买时候成功
            if (!isset($data['status']) || $data['status'] != 0) {
                return [
                    'errNo' => 3,
                    'errMsg' => '购买失败',
                ];
            }
            //返回产品的信息
            $order = $data['receipt']['in_app'][0];
            $order['errNo'] = 0;
            return $order;
        }
    }
    /*返回数据参照样例
    array (
      'status' => 0,
      'environment' => 'Sandbox',
      'receipt' =>
      array (
        'receipt_type' => 'ProductionSandbox',
        'adam_id' => 0,
        'app_item_id' => 0,
        'bundle_id' => 'com.abcde.www',
        'application_version' => '0.0.9',
        'download_id' => 0,
        'version_external_identifier' => 0,
        'receipt_creation_date' => '2020-06-13 18:22:19 Etc/GMT',
        'receipt_creation_date_ms' => '1468434139000',
        'receipt_creation_date_pst' => '2020-06-13 11:22:19 America/Los_Angeles',
        'request_date' => '2020-06-13 18:22:22 Etc/GMT',
        'request_date_ms' => '1468434142143',
        'request_date_pst' => '2020-06-13 11:22:22 America/Los_Angeles',
        'original_purchase_date' => '2013-08-01 07:00:00 Etc/GMT',
        'original_purchase_date_ms' => '1375340400000',
        'original_purchase_date_pst' => '2013-08-01 00:00:00 America/Los_Angeles',
        'original_application_version' => '1.0',
        'in_app' =>
        array (
          0 =>
          array (
            'quantity' => '1',
            'product_id' => 'price_1',//去看$this->product里对应的价格，就是你的充值额
            'transaction_id' => '1000000223463280',
            'original_transaction_id' => '1000000223463280',
            'purchase_date' => '2020-06-13 18:22:19 Etc/GMT',
            'purchase_date_ms' => '1468434139000',
            'purchase_date_pst' => '2020-06-13 11:22:19 America/Los_Angeles',
            'original_purchase_date' => '2020-06-13 18:22:19 Etc/GMT',
            'original_purchase_date_ms' => '1468434139000',
            'original_purchase_date_pst' => '2020-06-13 11:22:19 America/Los_Angeles',
            'is_trial_period' => 'false',
          ),
        ),
      ),
    )
    */

}
?>