//获取二级商户资金账单
public function getecommercebill(Request $request){
$bill_date=$request->input('bill_date');
$account_type=$request->input('account_type');
$algorithm=$request->input('algorithm');
$url='https://api.mch.weixin.qq.com/v3/ecommerce/bill/fundflowbill?bill_date='.$bill_date.'&account_type='.$account_type.'&algorithm='.$algorithm;
$merchant_id=config('wechat.payment.default.mch_id');//商户号
$serial_no=config('wechat.payment.default.serial_no');//不是平台证书序列号
$mch_private_key=$this->getPublicKey();//读取商户api证书公钥 getPublicKey()获取方法 见下文
$timestamp=time();//时间戳
$nonce=$this->nonce_str();//随机字符串
$body="";
$sign=$this->sign($url,'GET',$timestamp,$nonce,$body,$mch_private_key,$merchant_id,$serial_no);//签名
$header=[
'Authorization:WECHATPAY2-SHA256-RSA2048 ' . $sign,
'Accept:application/json',
'User-Agent:' . $merchant_id,
'Content-Type:application/json',
'Wechatpay-Serial:' . $this->getzhengshu()//获取平台证书序列号
];
$result=$this->curl($url,'',$header,'GET');
$res=json_decode($result,true);
if(!array_key_exists('download_bill_list',$res)){
Log::info($res);
return $this->success($res);
}
Log::info($bill_date.'下载资金账单，页数为'.count($res['download_bill_list']));
foreach($res['download_bill_list'] as $key=>$val){
$ciphertext= $this->down($val['download_url']);
$key=$this->getDecrypt($val['encrypt_key'],'',$val['nonce']);
//下载账单文件，得到账单文件密文ciphertext,需要对密文进行base64编码，然后再进行解密。否则密文乱码，解密返回false
$result_str=$this->decryptToString('',$val['nonce'],base64_encode($ciphertext),$key);
$res_arr=$this->deal_ecommerce_bill($result_str);
}
return $this->success($res);
}
public function down($url){
$merchant_id=config('wechat.payment.default.mch_id');//商户号
$serial_no=config('wechat.payment.default.serial_no');//不是平台证书序列号
$mch_private_key=$this->getPublicKey();//读取商户api证书公钥 getPublicKey()获取方法 见下文
$timestamp=time();//时间戳
$nonce=$this->nonce_str();//随机字符串
$body="";
$sign=$this->sign($url,'GET',$timestamp,$nonce,$body,$mch_private_key,$merchant_id,$serial_no);//签名
$header=[
'Authorization:WECHATPAY2-SHA256-RSA2048 ' . $sign,
'Accept:application/json',
'User-Agent:' . $merchant_id,
'Content-Type:application/json;charset=utf-8',
'Wechatpay-Serial:' . $this->getzhengshu()//获取平台证书序列号
];
$result=$this->curl($url,'',$header,'GET');
return $result;
}
//解密加密密钥
public function getDecrypt($ciphertext, $associatedData, $nonceStr){
$mch_private_key= file_get_contents(config('wechat.payment.default.key_path'));
// Log::info($mch_private_key);
$str = base64_decode($ciphertext);
openssl_private_decrypt($str,$encrypted,$mch_private_key,OPENSSL_PKCS1_OAEP_PADDING);
return trim($encrypted);
}
//解密返回的信息
public function decryptToString($associatedData,$nonceStr,$ciphertext,$aesKey){
if (strlen($aesKey) != 32) {
throw new InvalidArgumentException('无效的ApiV3Key，长度应为32个字节');
}
$ciphertext=\base64_decode($ciphertext);
if (strlen($ciphertext) <= 16) {
return false;
}
if (function_exists('\sodium_crypto_aead_aes256gcm_is_available') &&
\sodium_crypto_aead_aes256gcm_is_available()) {
return \sodium_crypto_aead_aes256gcm_decrypt($ciphertext, $associatedData, $nonceStr, $aesKey);
}
if (function_exists('\Sodium\crypto_aead_aes256gcm_is_available') &&
\Sodium\crypto_aead_aes256gcm_is_available()) {
return \Sodium\crypto_aead_aes256gcm_decrypt($ciphertext, $associatedData, $nonceStr, $aesKey);
}
if(PHP_VERSION_ID >= 70100 && in_array('aes-256-gcm', \openssl_get_cipher_methods())){
$ctext=substr($ciphertext,0,-16);
$authTag=substr($ciphertext,-16);
return \openssl_decrypt(
$ctext,
'aes-256-gcm',
$aesKey,
\OPENSSL_RAW_DATA,
$nonceStr,
$authTag,
$associatedData
);
}
throw new \RuntimeException('php7.1');
}
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