#tradewind:add wechat auth

app/Http/Controllers/Api/WechatAuthController.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+
+class WechatAuthController extends Controller
+{
+    //
+    public function checkSign(Request $request)
+    {
+        $signature = $request->signature;
+        $timestamp = $request->timestamp;
+        $nonce = $request->nonce;
+
+        $token = config('token.wechat_token');
+
+        $tmpArr = [$token, $timestamp, $nonce];
+        sort($tmpArr, SORT_STRING);
+        $tmpStr = implode($tmpArr);
+        $tmpStr = sha1($tmpStr);
+
+        return $tmpStr === $signature;
+    }
+}