<?php


namespace App\Http\Controllers\api\thirdPart\syrius\units;


use Illuminate\Support\Facades\Log;

trait Signature
{
    public function verify(string $requestUrl, string $waitSignBody):bool
    {
        $baseUrl = "https://was.baoshi56.com";
        $requestUrl = substr($requestUrl,strlen($baseUrl));
        $header = "signature=";
        $secret = config("api.syrius.client_secret");

        $arr = explode("&",$requestUrl);
        $waitSignUrl = "";
        $signature = "";
        foreach ($arr as $item){
            if (!(substr($item,0,strlen($header)) == $header)){
                $waitSignUrl .= $item."&";
            }else $signature = substr($item,strlen($header));
        }
        $waitSignUrl = rtrim($waitSignUrl,"&");
        $plainText = "POST"."\n".$waitSignUrl."\n".$waitSignBody."\n";
        Log::warning("炬星验签",["拆取获得:".$secret.":".$plainText]);
        return $signature == $this->sign($secret.":".$plainText);
    }

    public function sign(string $str):string
    {
        return hash("sha256",$str);
    }
}