220 lines
7.0 KiB
PHP
220 lines
7.0 KiB
PHP
<?php
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class paypal_plugin
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{
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static public $info = [
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'name' => 'paypal', //支付插件英文名称，需和目录名称一致，不能有重复
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'showname' => 'PayPal', //支付插件显示名称
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'author' => 'PayPal', //支付插件作者
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'link' => 'https://www.paypal.com/', //支付插件作者链接
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'types' => ['paypal'], //支付插件支持的支付方式，可选的有alipay,qqpay,wxpay,bank
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'inputs' => [ //支付插件要求传入的参数以及参数显示名称，可选的有appid,appkey,appsecret,appurl,appmchid
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'appid' => [
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'name' => 'ClientId',
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'type' => 'input',
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'note' => '',
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],
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'appkey' => [
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'name' => 'ClientSecret',
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'type' => 'input',
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'note' => '',
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],
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'appswitch' => [
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'name' => '模式选择',
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'type' => 'select',
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'options' => [0=>'线上模式',1=>'沙盒模式'],
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],
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'currency_code' => [
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'name' => '结算货币',
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'type' => 'select',
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'options' => [
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'USD' => '美元 (USD)',
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'AUD' => '澳元 (AUD)',
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'BRL' => '巴西雷亚尔 (BRL)',
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'CAD' => '加拿大元 (CAD)',
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'CNY' => '人民币 (CNY)',
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'CZK' => '克朗 (CZK)',
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'DKK' => '丹麦克朗(DKK)',
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'EUR' => '欧元 (EUR)',
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'HKD' => '港币 (HKD)',
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'HUF' => '匈牙利福林 (HUF)',
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'INR' => '印度卢比 (INR)',
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'ILS' => '以色列新谢克尔 (ILS)',
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'JPY' => '日元 (JPY)',
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'MYR' => '马来西亚林吉特 (MYR)',
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'MXN' => '墨西哥比索 (MXN)',
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'TWD' => '新台币 (TWD)',
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'NZD' => '新西兰元 (NZD)',
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'NOK' => '挪威克朗 (NOK)',
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'PHP' => '菲律宾比索 (PHP)',
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'PLN' => '波兰兹罗提 (PLN)',
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'GBP' => '英镑 (GBP)',
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'RUB' => '俄罗斯卢布 (RUB)',
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'SGD' => '新加坡元 (SGD)',
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'SEK' => '瑞典克朗 (SEK)',
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'CHF' => '瑞士法郎 (CHF)',
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'THB' => '泰铢 (THB)',
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],
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],
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'currency_rate' => [
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'name' => '货币汇率',
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'type' => 'input',
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'note' => '例如1元人民币兑换0.137美元(USD)，则此处填0.137',
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],
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],
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'select' => null,
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'note' => '', //支付密钥填写说明
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'bindwxmp' => false, //是否支持绑定微信公众号
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'bindwxa' => false, //是否支持绑定微信小程序
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];
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static public function submit(){
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global $siteurl, $channel, $order, $ordername, $sitename, $conf, $DB;
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require_once(PAY_ROOT."inc/PayPalClient.php");
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if(!$channel['currency_rate']) $channel['currency_rate'] = 1;
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$money = round($order['realmoney'] * $channel['currency_rate'], 2);
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$parameter = [
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'intent' => 'CAPTURE',
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'purchase_units' => [
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[
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'amount' => [
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'currency_code' => $channel['currency_code'],
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'value' => $money,
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],
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'description' => $order['name'],
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'custom_id' => TRADE_NO,
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'invoice_id' => TRADE_NO,
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],
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],
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'application_context'=> [
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'cancel_url' => $siteurl.'pay/cancel/'.TRADE_NO.'/',
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'return_url' => $siteurl.'pay/return/'.TRADE_NO.'/',
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],
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];
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try {
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$approvalUrl = \lib\Payment::lockPayData(TRADE_NO, function() use($channel, $parameter) {
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$client = new PayPalClient($channel['appid'], $channel['appkey'], $channel['appswitch']);
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$result = $client->createOrder($parameter);
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$approvalUrl = null;
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foreach($result['links'] as $link){
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if($link['rel'] == 'approve'){
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$approvalUrl = $link['href'];
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}
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}
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if(empty($approvalUrl)){
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throw new Exception('获取支付链接失败');
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}
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return $approvalUrl;
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});
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return ['type'=>'jump','url'=>$approvalUrl];
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}
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catch (Exception $ex) {
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sysmsg('PayPal下单失败：'.$ex->getMessage());
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}
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}
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//同步回调
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static public function return(){
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global $channel, $order;
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require_once(PAY_ROOT."inc/PayPalClient.php");
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if (isset($_GET['token']) && isset($_GET['PayerID'])) {
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$token = $_GET['token'];
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try {
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$client = new PayPalClient($channel['appid'], $channel['appkey'], $channel['appswitch']);
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$result = $client->captureOrder($token);
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} catch (Exception $ex) {
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return ['type'=>'error','msg'=>'支付订单失败 '.$ex->getMessage()];
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}
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$captures = $result['purchase_units'][0]['payments']['captures'][0];
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$amount = $captures['seller_receivable_breakdown']['gross_amount']['value'];
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$trade_no = $captures['id'];
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$out_trade_no = $captures['invoice_id'];
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$buyer = $result['payer']['email_address'];
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if($out_trade_no == TRADE_NO){
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processReturn($order, $trade_no, $buyer);
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}else{
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return ['type'=>'error','msg'=>'订单信息校验失败'];
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}
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} else {
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return ['type'=>'error','msg'=>'PayPal返回参数错误'];
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}
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}
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static public function cancel(){
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return ['type'=>'page','page'=>'error'];
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}
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static public function webhook(){
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global $channel, $order;
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$json = file_get_contents('php://input');
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$arr = json_decode($json, true);
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if(!$arr || empty($arr['event_type'])){
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exit('事件类型为空');
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}
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if(!in_array($arr['event_type'], ['PAYMENT.CAPTURE.COMPLETED'])){
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exit('其他事件('.$arr['event_type'].':'.$arr['summary'].')');
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}
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if(empty($channel['appsecret'])){
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exit('未配置webhookid');
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}
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$crc32 = crc32($json);
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if (empty($_SERVER['HTTP_PAYPAL_TRANSMISSION_ID']) || empty($_SERVER['HTTP_PAYPAL_TRANSMISSION_TIME']) || empty($crc32)) {
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exit('签名数据为空');
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}
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$sign_string = $_SERVER['HTTP_PAYPAL_TRANSMISSION_ID'].'|'.$_SERVER['HTTP_PAYPAL_TRANSMISSION_TIME'].'|'.$channel['appsecret'].'|'.$crc32;
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// 通过PAYPAL-CERT-URL头信息去拿公钥
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$public_key = openssl_pkey_get_public(get_curl($_SERVER['HTTP_PAYPAL_CERT_URL']));
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$details = openssl_pkey_get_details($public_key);
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$verify = openssl_verify($sign_string, base64_decode($_SERVER['HTTP_PAYPAL_TRANSMISSION_SIG']), $details['key'], 'SHA256');
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if($verify != 1)
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{
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exit('签名验证失败');
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}
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$resource = $arr['resource'];
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$amount = $resource['amount']['value'];
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$trade_no = $resource['id'];
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$out_trade_no = $resource['invoice_id'];
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}
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//退款
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static public function refund($order){
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global $channel;
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if(empty($order))exit();
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require_once(PAY_ROOT."inc/PayPalClient.php");
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if(!$channel['currency_rate']) $channel['currency_rate'] = 1;
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$money = round($order['refundmoney'] * $channel['currency_rate'], 2);
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$parameter = [
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'amount' => [
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'currency_code' => $channel['currency_code'],
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'value' => $money,
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],
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];
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try{
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$client = new PayPalClient($channel['appid'], $channel['appkey'], $channel['appswitch']);
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$res = $client->refundPayment($order['api_trade_no'], $parameter);
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$result = ['code'=>0, 'trade_no'=>$res['id'], 'refund_fee'=>$res['amount']['value']];
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}catch(Exception $e){
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$result = ['code'=>-1, 'msg'=>$e->getMessage()];
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}
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return $result;
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}
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} |