fix: use SHA256 as sign type for epay

src/Services/Gateway/Epay.php

@@ -31,7 +31,7 @@ public function __construct()
         $this->epay['apiurl'] = Setting::obtain('epay_url');//易支付API地址
         $this->epay['partner'] = Setting::obtain('epay_pid');//易支付商户pid
         $this->epay['key'] = Setting::obtain('epay_key');//易支付商户Key
-        $this->epay['sign_type'] = strtoupper('MD5'); //签名方式
+        $this->epay['sign_type'] = strtoupper('SHA256'); //签名方式
         $this->epay['input_charset'] = strtolower('utf-8');//字符编码
         $this->epay['transport'] = 'https';//协议 http 或者https
     }
@@ -97,16 +97,16 @@ public function purchase(ServerRequest $request, Response $response, array $args
             'sitename' => $_ENV['appName'],
         ];
 
-        $alipaySubmit = new EpaySubmit($this->epay);
-        $html_text = $alipaySubmit->buildRequestForm($data);
+        $epaySubmit = new EpaySubmit($this->epay);
+        $html_text = $epaySubmit->buildRequestForm($data);
 
         return $response->write($html_text);
     }
 
     public function notify($request, $response, $args): ResponseInterface
     {
-        $alipayNotify = new EpayNotify($this->epay);
-        $verify_result = $alipayNotify->verifyNotify();
+        $epayNotify = new EpayNotify($this->epay);
+        $verify_result = $epayNotify->verifyNotify();
 
         if ($verify_result) {
             $out_trade_no = $_GET['out_trade_no'];

src/Services/Gateway/Epay/EpayNotify.php

@@ -8,26 +8,20 @@
 
 final class EpayNotify
 {
-    private array $alipay_config;
+    private array $epay_config;
 
-    public function __construct($alipay_config)
+    public function __construct($epay_config)
     {
-        $this->alipay_config = $alipay_config;
+        $this->epay_config = $epay_config;
     }
 
     public function verifyNotify(): bool
     {
         if (is_null($_GET)) {//判断POST来的数组是否为空
             return false;
         }
-        //生成签名结果
-        $isSign = $this->getSignVeryfy($_GET, $_GET['sign']);
-        //获取支付宝远程服务器ATN结果（验证是否是支付宝发来的消息）
-        $responseTxt = 'true';
-        //验证
-        //$responsetTxt的结果不是true，与服务器设置问题、合作身份者ID、notify_id一分钟失效有关
-        //isSign的结果不是true，与安全校验码、请求时的参数格式（如：带自定义参数等）、编码格式有关
-        if (preg_match('/true$/i', $responseTxt) && $isSign) {
+
+        if ($this->getSignVeryfy($_GET, $_GET['sign'])) {
             return true;
         }
 
@@ -43,6 +37,6 @@ public function getSignVeryfy($para_temp, $sign): bool
         //把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
         $prestr = EpayTool::createLinkstring($para_sort);
 
-        return EpayTool::verify($prestr, $sign, $this->alipay_config['key']);
+        return EpayTool::verify($prestr, $sign, $this->epay_config['key']);
     }
 }

src/Services/Gateway/Epay/EpaySubmit.php

@@ -6,21 +6,21 @@
 
 final class EpaySubmit
 {
-    private array $alipay_config;
-    private string $alipay_gateway_new;
+    private array $epay_config;
+    private string $epay_gateway;
 
-    public function __construct($alipay_config)
+    public function __construct($epay_config)
     {
-        $this->alipay_config = $alipay_config;
-        $this->alipay_gateway_new = $this->alipay_config['apiurl'] . 'submit.php?';
+        $this->epay_config = $epay_config;
+        $this->epay_gateway = $this->epay_config['apiurl'] . 'submit.php?';
     }
 
     public function buildRequestMysign($para_sort): string
     {
         //把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
         $prestr = EpayTool::createLinkstring($para_sort);
 
-        return EpayTool::sign($prestr, $this->alipay_config['key']);
+        return EpayTool::sign($prestr, $this->epay_config['key']);
     }
 
     public function buildRequestPara($para_temp)
@@ -33,7 +33,7 @@ public function buildRequestPara($para_temp)
         $mysign = $this->buildRequestMysign($para_sort);
         //签名结果与签名方式加入请求提交参数组中
         $para_sort['sign'] = $mysign;
-        $para_sort['sign_type'] = strtoupper(trim($this->alipay_config['sign_type']));
+        $para_sort['sign_type'] = strtoupper(trim($this->epay_config['sign_type']));
 
         return $para_sort;
     }
@@ -42,16 +42,16 @@ public function buildRequestForm($para_temp, $method = 'POST', $button_name = '
     {
         //待请求参数数组
         $para = $this->buildRequestPara($para_temp);
-        $sHtml = "<form id='alipaysubmit' name='alipaysubmit' action='".
-            $this->alipay_gateway_new . "' method='" . $method . "'>";
+        $html = "<form id='alipaysubmit' name='alipaysubmit' action='".
+            $this->epay_gateway . "' method='" . $method . "'>";
 
         foreach ($para as $key => $val) {
-            $sHtml .= "<input type='hidden' name='".$key."' value='".$val."'/>";
+            $html .= "<input type='hidden' name='".$key."' value='".$val."'/>";
         }
         //submit按钮控件请不要含有name属性
-        $sHtml .= "<input type='submit' value='".$button_name."'></form>";
-        $sHtml .= "<script>document.forms['alipaysubmit'].submit();</script>";
+        $html .= "<input type='submit' value='".$button_name."'></form>";
+        $html .= "<script>document.forms['alipaysubmit'].submit();</script>";
 
-        return $sHtml;
+        return $html;
     }
 }

src/Services/Gateway/Epay/EpayTool.php

@@ -19,9 +19,9 @@ public static function sign($prestr, $key): string
     public static function verify($prestr, $sign, $key): bool
     {
         $prestr .= $key;
-        $correct_sgin = hash('sha256', $prestr);
+        $correct_sign = hash('sha256', $prestr);
 
-        return $correct_sgin === $sign;
+        return $correct_sign === $sign;
     }
 
     public static function createLinkstring($para): string