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<?php
class ModelExtensionPaymentAlipay extends Model {
private $apiMethodName="alipay.trade.page.pay";
private $postCharset = "UTF-8";
private $alipaySdkVersion = "alipay-sdk-php-20161101";
private $apiVersion="1.0";
private $logFileName = "alipay.log";
private $gateway_url = "https://openapi.alipay.com/gateway.do";
private $alipay_public_key;
private $private_key;
private $appid;
private $notifyUrl;
private $returnUrl;
private $format = "json";
private $signtype = "RSA2";
private $apiParas = array();
public function getMethod($address, $total) {
$this->load->language('extension/payment/alipay');
$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "zone_to_geo_zone WHERE geo_zone_id = '" . (int)$this->config->get('payment_alipay_geo_zone_id') . "' AND country_id = '" . (int)$address['country_id'] . "' AND (zone_id = '" . (int)$address['zone_id'] . "' OR zone_id = '0')");
if ($this->config->get('payment_alipay_total') > 0 && $this->config->get('payment_alipay_total') > $total) {
$status = false;
} elseif (!$this->config->get('payment_alipay_geo_zone_id')) {
$status = true;
} elseif ($query->num_rows) {
$status = true;
} else {
$status = false;
}
$method_data = array();
if ($status) {
$method_data = array(
'code' => 'alipay',
'title' => $this->language->get('text_title'),
'terms' => '',
'sort_order' => $this->config->get('payment_alipay_sort_order')
);
}
return $method_data;
}
private function setParams($alipay_config){
$this->gateway_url = $alipay_config['gateway_url'];
$this->appid = $alipay_config['app_id'];
$this->private_key = $alipay_config['merchant_private_key'];
$this->alipay_public_key = $alipay_config['alipay_public_key'];
$this->postCharset = $alipay_config['charset'];
$this->signtype = $alipay_config['sign_type'];
$this->notifyUrl = $alipay_config['notify_url'];
$this->returnUrl = $alipay_config['return_url'];
if (empty($this->appid)||trim($this->appid)=="") {
throw new Exception("appid should not be NULL!");
}
if (empty($this->private_key)||trim($this->private_key)=="") {
throw new Exception("private_key should not be NULL!");
}
if (empty($this->alipay_public_key)||trim($this->alipay_public_key)=="") {
throw new Exception("alipay_public_key should not be NULL!");
}
if (empty($this->postCharset)||trim($this->postCharset)=="") {
throw new Exception("charset should not be NULL!");
}
if (empty($this->gateway_url)||trim($this->gateway_url)=="") {
throw new Exception("gateway_url should not be NULL!");
}
}
function pagePay($builder,$config) {
$this->setParams($config);
$biz_content=null;
if(!empty($builder)){
$biz_content = json_encode($builder,JSON_UNESCAPED_UNICODE);
}
$log = new Log($this->logFileName);
$log->write($biz_content);
$this->apiParas["biz_content"] = $biz_content;
$response = $this->pageExecute($this, "post");
$log = new Log($this->logFileName);
$log->write("response: ".var_export($response,true));
return $response;
}
function check($arr, $config){
$this->setParams($config);
$result = $this->rsaCheckV1($arr, $this->signtype);
return $result;
}
public function pageExecute($request, $httpmethod = "POST") {
$iv=$this->apiVersion;
$sysParams["app_id"] = $this->appid;
$sysParams["version"] = $iv;
$sysParams["format"] = $this->format;
$sysParams["sign_type"] = $this->signtype;
$sysParams["method"] = $this->apiMethodName;
$sysParams["timestamp"] = date("Y-m-d H:i:s");
$sysParams["alipay_sdk"] = $this->alipaySdkVersion;
$sysParams["notify_url"] = $this->notifyUrl;
$sysParams["return_url"] = $this->returnUrl;
$sysParams["charset"] = $this->postCharset;
$sysParams["gateway_url"] = $this->gateway_url;
$apiParams = $this->apiParas;
$totalParams = array_merge($apiParams, $sysParams);
$totalParams["sign"] = $this->generateSign($totalParams, $this->signtype);
if ("GET" == strtoupper($httpmethod)) {
$preString=$this->getSignContentUrlencode($totalParams);
$requestUrl = $this->gateway_url."?".$preString;
return $requestUrl;
} else {
foreach ($totalParams as $key => $value) {
if (false === $this->checkEmpty($value)) {
$value = str_replace("\"", """, $value);
$totalParams[$key] = $value;
} else {
unset($totalParams[$key]);
}
}
return $totalParams;
}
}
protected function checkEmpty($value) {
if (!isset($value))
return true;
if ($value === null)
return true;
if (trim($value) === "")
return true;
return false;
}
public function rsaCheckV1($params, $signType='RSA') {
$sign = $params['sign'];
$params['sign_type'] = null;
$params['sign'] = null;
return $this->verify($this->getSignContent($params), $sign, $signType);
}
function verify($data, $sign, $signType = 'RSA') {
$pubKey= $this->alipay_public_key;
$res = "-----BEGIN PUBLIC KEY-----\n" .
wordwrap($pubKey, 64, "\n", true) .
"\n-----END PUBLIC KEY-----";
(trim($pubKey)) or die('Alipay public key error!');
if ("RSA2" == $signType) {
$result = (bool)openssl_verify($data, base64_decode($sign), $res, OPENSSL_ALGO_SHA256);
} else {
$result = (bool)openssl_verify($data, base64_decode($sign), $res);
}
return $result;
}
public function getSignContent($params) {
ksort($params);
$stringToBeSigned = "";
$i = 0;
foreach ($params as $k => $v) {
if (false === $this->checkEmpty($v) && "@" != substr($v, 0, 1)) {
if ($i == 0) {
$stringToBeSigned .= "$k" . "=" . "$v";
} else {
$stringToBeSigned .= "&" . "$k" . "=" . "$v";
}
$i++;
}
}
unset ($k, $v);
return $stringToBeSigned;
}
public function generateSign($params, $signType = "RSA") {
return $this->sign($this->getSignContent($params), $signType);
}
protected function sign($data, $signType = "RSA") {
$priKey=$this->private_key;
$res = "-----BEGIN RSA PRIVATE KEY-----\n" .
wordwrap($priKey, 64, "\n", true) .
"\n-----END RSA PRIVATE KEY-----";
if ("RSA2" == $signType) {
openssl_sign($data, $sign, $res, OPENSSL_ALGO_SHA256);
} else {
openssl_sign($data, $sign, $res);
}
$sign = base64_encode($sign);
return $sign;
}
function getPostCharset(){
return trim($this->postCharset);
}
}
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