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<?php |
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/** |
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* Class Pay |
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* |
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* @link https://www.icy2003.com/ |
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* @author icy2003 <[email protected]> |
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* @copyright Copyright (c) 2017, icy2003 |
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*/ |
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namespace icy2003\php\iapis\alipay; |
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use Exception; |
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use icy2003\php\I; |
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use icy2003\php\iapis\Api; |
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use icy2003\php\ihelpers\Base64; |
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use icy2003\php\ihelpers\Charset; |
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use icy2003\php\ihelpers\Crypto; |
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use icy2003\php\ihelpers\Json; |
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use icy2003\php\ihelpers\Request; |
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use icy2003\php\ihelpers\Strings; |
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/** |
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* 支付宝支付 |
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* |
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* - 参看[支付宝支付开发文档](https://docs.open.alipay.com/) |
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*/ |
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class Pay extends Api |
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{ |
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use PaySetterTrait; |
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/** |
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* 初始化 |
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* |
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* @param string $appId 支付宝分配给开发者的应用ID |
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* @param string $rsaPrivateKey 商户私钥 |
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*/ |
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public function __construct($appId, $rsaPrivateKey) |
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{ |
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$this->_appId = $appId; |
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if (null === $this->_appId) { |
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throw new Exception("缺少应用 ID"); |
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} |
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$this->_rsaPrivateKey = $rsaPrivateKey; |
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if (null === $this->_rsaPrivateKey) { |
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throw new Exception("缺少商户私钥"); |
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} |
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} |
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/** |
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* 支付类型:APP |
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*/ |
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const TRADE_TYPE_APP = 'APP'; |
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/** |
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* 支付接口 |
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* |
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* - APP支付:返回的字符串需给客户端拉起支付宝 |
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* |
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* @return static |
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*/ |
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public function pay() |
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{ |
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if (null === $this->_tradeType) { |
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throw new Exception('请使用 setTradeType 定义支付类型'); |
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} |
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// APP 支付 |
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if (self::TRADE_TYPE_APP === $this->_tradeType) { |
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if (null === I::get($this->_options, 'biz_content.total_amount')) { |
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throw new Exception('请使用 setBizContentTotalAmount 设置 biz_content.total_amount'); |
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} |
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if (null === I::get($this->_options, 'biz_content.subject')) { |
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throw new Exception('请使用 setBizContentSubject 设置:biz_content.subject'); |
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} |
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if (null === I::get($this->_options, 'biz_content.out_trade_no')) { |
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throw new Exception('请使用 setBizContentOutTradeNo 设置:biz_content.out_trade_no'); |
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} |
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$values = array_filter([ |
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'app_id' => $this->_appId, |
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'method' => 'alipay.trade.app.pay', |
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'format' => I::get($this->_options, 'format'), |
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'return_url' => I::get($this->_options, 'return_url'), |
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'charset' => I::get($this->_options, 'charset', 'utf-8'), |
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'sign_type' => I::get($this->_options, 'sign_type', 'RSA2'), |
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'timestamp' => I::get($this->_options, 'timestamp', date('Y-m-d H:i:s')), |
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'version' => '1.0', |
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'notify_url' => I::get($this->_options, 'notify_url'), |
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'app_auth_token' => I::get($this->_options, 'app_auth_token'), |
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'biz_content' => Json::encode(I::get($this->_options, 'biz_content', [])), |
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]); |
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$values['sign'] = $this->getSign($values); |
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$this->_result = http_build_query($values); |
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} |
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return $this; |
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} |
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/** |
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* 生成签名 |
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* |
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* @param array $params 签名参数 |
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* |
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* @return string |
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*/ |
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public function getSign($params) |
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{ |
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ksort($params); |
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// 不得不吐槽,支付宝这部分代码写的比微信的烂 |
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$array = []; |
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$params = array_filter($params); |
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foreach ($params as $key => $value) { |
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if ('sign' !== $key && false === Strings::isStartsWith($value, '@')) { |
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$array[] = $key . '=' . Charset::convertTo($value, (string)I::get($this->_options, 'charset', 'utf-8')); |
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} |
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} |
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$string = implode('&', $array); |
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$crypto = new Crypto(); |
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$crypto->setPair([null, $this->_rsaPrivateKey]); |
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$signType = I::get($this->_options, 'sign_type', 'RSA2'); |
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if ('RSA' === $signType) { |
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$sign = $crypto->getSignature($string, OPENSSL_ALGO_SHA1); |
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} elseif ('RSA2' === $signType) { |
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$sign = $crypto->getSignature($string, OPENSSL_ALGO_SHA256); |
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} else { |
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throw new Exception("不支持的签名类型"); |
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} |
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$sign = Base64::encode($sign); |
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return $sign; |
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} |
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/** |
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* 支付结果通知以及退款结果通知的数据处理 |
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* |
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* 请参考[交易状态问题解析](https://openclub.alipay.com/club/history/read/5407) |
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* |
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* @return array |
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*/ |
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public function getNotifyArray() |
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{ |
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return (new Request())->post(); |
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} |
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/** |
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* 返回通知成功时发送给支付宝的字符串 |
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* |
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* @return string |
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*/ |
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public function getNotifyReturn() |
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{ |
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return 'success'; |
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} |
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/** |
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* self::getNotifyArray 和 self::getNotifyReturn 的结合:通知为交易成功时,$callback 为 true,则输出成功给微信 |
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* |
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* - 回调参数: |
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* 1. 通知数组:$array 支付宝返回的原始数据 |
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* 2. 是否支付成功:$isPay |
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* 3. 是否退款成功:$isRefund |
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* 4. 是否全额退款:$isRefundFull 退款金额(refund_fee)永远和总金额(total_amount)对比,不考虑优惠,如需计算优惠,请直接使用 $array 原始数据自行计算 |
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* - 回调函数返回 true 时才会输出成功给支付宝 |
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* |
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* @param callback $callback 回调函数 |
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* |
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* @return void |
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* @info 此函数之后不得有任何输出 |
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*/ |
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public function notify($callback = null) |
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{ |
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$array = $this->getNotifyArray(); |
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if (!empty($array)) { |
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$isPay = $isRefund = $isRefundFull = null; |
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$tradeStatus = I::get($array, 'trade_status'); |
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$refundFee = I::get($array, 'refund_fee'); |
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$totalAmount = I::get($array, 'total_amount'); |
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if ($refundFee > 0) { |
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$isRefund = true; |
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if ('TRADE_CLOSED' === $tradeStatus && $refundFee === $totalAmount) { |
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// 3、交易成功后,交易全额退款交易状态转为TRADE_CLOSED(交易关闭) |
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// 7、如果一直部分退款退完所有交易金额则交易状态转为TRADE_CLOSED(交易关闭) |
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$isRefundFull = true; |
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} elseif ('TRADE_SUCCESS' === $tradeStatus && $refundFee < $totalAmount) { |
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// 6、交易成功后部分退款,交易状态仍为TRADE_SUCCESS(交易成功) |
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$isRefundFull = false; |
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} |
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} elseif ($totalAmount > 0) { |
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if ('TRADE_CLOSED' === $tradeStatus) { |
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// 2、交易创建成功后,用户未付款交易超时关闭交易状态转为TRADE_CLOSED(交易关闭) |
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$isPay = false; |
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} elseif ('TRADE_SUCCESS' === $tradeStatus || 'TRADE_FINISHED' === $tradeStatus) { |
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// 1、交易创建成功后,用户支付成功,交易状态转为TRADE_SUCCESS(交易成功) |
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// 4、交易创建成功后,用户支付成功后,若用户商品不支持退款,交易状态直接转为TRADE_FINISHED(交易完成) |
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// 5、交易成功后,默认退款时间三个月内没有退款,交易状态转为TRADE_FINISHED(交易完成)不可退款 |
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// 8、如果未退完所有交易金额,三个月后交易状态转为TRADE_FINISHED(交易完成)不可退款 |
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$isPay = true; |
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} |
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} |
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if (null === $callback || true === I::call($callback, [$array, $isPay, $isRefund, $isRefundFull])) { |
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echo $this->getNotifyReturn(); |
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} |
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} |
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} |
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} |
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Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..