feat: add wechatpay support. (#1710)

* feat: add wechatpay support.

* feat: add wechatpay support.

* Update wechatv3pay.go

* fix: update format.

* Update wechatv3pay.go

* Update wechatv3pay.go

* Update wechatv3pay.go

* fix: update file format.

* fix: improve the front of wechat payment.

* fix: change clientId2 to clientId.

* fix: fix the code format.

* fix: return backend error information to frontend.

object/product_test.go

@@ -30,7 +30,7 @@ func TestProduct(t *testing.T) {
 	product := GetProduct("admin/product_123")
 	provider := getProvider(product.Owner, "provider_pay_alipay")
 	cert := getCert(product.Owner, "cert-pay-alipay")
-	pProvider := pp.GetPaymentProvider(provider.Type, provider.ClientId, provider.ClientSecret, provider.Host, cert.Certificate, cert.PrivateKey, cert.AuthorityPublicKey, cert.AuthorityRootPublicKey)
+	pProvider := pp.GetPaymentProvider(provider.Type, provider.ClientId, provider.ClientSecret, provider.Host, cert.Certificate, cert.PrivateKey, cert.AuthorityPublicKey, cert.AuthorityRootPublicKey, provider.ClientId2)
 
 	paymentName := util.GenerateTimeId()
 	returnUrl := ""

object/provider.go

@@ -256,7 +256,11 @@ func (p *Provider) getPaymentProvider() (pp.PaymentProvider, *Cert, error) {
 		}
 	}
 
-	pProvider := pp.GetPaymentProvider(p.Type, p.ClientId, p.ClientSecret, p.Host, cert.Certificate, cert.PrivateKey, cert.AuthorityPublicKey, cert.AuthorityRootPublicKey)
+	pProvider, err := pp.GetPaymentProvider(p.Type, p.ClientId, p.ClientSecret, p.Host, cert.Certificate, cert.PrivateKey, cert.AuthorityPublicKey, cert.AuthorityRootPublicKey, p.ClientId2)
+	if err != nil {
+		return nil, cert, err
+	}
+
 	if pProvider == nil {
 		return nil, cert, fmt.Errorf("the payment provider type: %s is not supported", p.Type)
 	}

pp/alipay.go

@@ -28,21 +28,21 @@ type AlipayPaymentProvider struct {
 	Client *alipay.Client
 }
 
-func NewAlipayPaymentProvider(appId string, appCertificate string, appPrivateKey string, authorityPublicKey string, authorityRootPublicKey string) *AlipayPaymentProvider {
+func NewAlipayPaymentProvider(appId string, appCertificate string, appPrivateKey string, authorityPublicKey string, authorityRootPublicKey string) (*AlipayPaymentProvider, error) {
 	pp := &AlipayPaymentProvider{}
 
 	client, err := alipay.NewClient(appId, appPrivateKey, true)
 	if err != nil {
-		panic(err)
+		return nil, err
 	}
 
 	err = client.SetCertSnByContent([]byte(appCertificate), []byte(authorityRootPublicKey), []byte(authorityPublicKey))
 	if err != nil {
-		panic(err)
+		return nil, err
 	}
 
 	pp.Client = client
-	return pp
+	return pp, nil
 }
 
 func (pp *AlipayPaymentProvider) Pay(providerName string, productName string, payerName string, paymentName string, productDisplayName string, price float64, returnUrl string, notifyUrl string) (string, error) {

pp/provider.go

@@ -22,11 +22,23 @@ type PaymentProvider interface {
 	GetInvoice(paymentName string, personName string, personIdCard string, personEmail string, personPhone string, invoiceType string, invoiceTitle string, invoiceTaxId string) (string, error)
 }
 
-func GetPaymentProvider(typ string, appId string, clientSecret string, host string, appCertificate string, appPrivateKey string, authorityPublicKey string, authorityRootPublicKey string) PaymentProvider {
+func GetPaymentProvider(typ string, appId string, clientSecret string, host string, appCertificate string, appPrivateKey string, authorityPublicKey string, authorityRootPublicKey string, clientId2 string) (PaymentProvider, error) {
 	if typ == "Alipay" {
-		return NewAlipayPaymentProvider(appId, appCertificate, appPrivateKey, authorityPublicKey, authorityRootPublicKey)
+		newAlipayPaymentProvider, err := NewAlipayPaymentProvider(appId, appCertificate, appPrivateKey, authorityPublicKey, authorityRootPublicKey)
+		if err != nil {
+			return nil, err
+		}
+		return newAlipayPaymentProvider, nil
 	} else if typ == "GC" {
-		return NewGcPaymentProvider(appId, clientSecret, host)
+		return NewGcPaymentProvider(appId, clientSecret, host), nil
+	} else if typ == "WeChat Pay" {
+		// appId, mchId, mchCertSerialNumber, apiV3Key, privateKey
+		newWechatPaymentProvider, err := NewWechatPaymentProvider(clientId2, appId, authorityPublicKey, clientSecret, appPrivateKey)
+		if err != nil {
+			return nil, err
+		}
+		return newWechatPaymentProvider, nil
 	}
-	return nil
+
+	return nil, nil
 }

pp/wechatpay.go

@@ -0,0 +1,102 @@
+// Copyright 2022 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pp
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/casdoor/casdoor/util"
+	"github.com/go-pay/gopay"
+	"github.com/go-pay/gopay/wechat/v3"
+)
+
+type WechatPaymentProvider struct {
+	ClientV3 *wechat.ClientV3
+	appId    string
+}
+
+func NewWechatPaymentProvider(appId string, mchId string, mchCertSerialNumber string, apiV3Key string, privateKey string) (*WechatPaymentProvider, error) {
+	pp := &WechatPaymentProvider{appId: appId}
+
+	clientV3, err := wechat.NewClientV3(mchId, mchCertSerialNumber, apiV3Key, privateKey)
+	if err != nil {
+		return nil, err
+	}
+
+	err = clientV3.AutoVerifySign()
+	if err != nil {
+		return nil, err
+	}
+	pp.ClientV3 = clientV3
+	return pp, nil
+}
+
+func (pp *WechatPaymentProvider) Pay(providerName string, productName string, payerName string, paymentName string, productDisplayName string, price float64, returnUrl string, notifyUrl string) (string, error) {
+	// pp.Client.DebugSwitch = gopay.DebugOn
+
+	bm := gopay.BodyMap{}
+
+	bm.Set("providerName", providerName)
+	bm.Set("productName", productName)
+
+	bm.Set("return_url", returnUrl)
+	bm.Set("notify_url", notifyUrl)
+
+	bm.Set("body", productDisplayName)
+	bm.Set("out_trade_no", paymentName)
+	bm.Set("total_fee", getPriceString(price))
+
+	wechatRsp, err := pp.ClientV3.V3TransactionJsapi(context.Background(), bm)
+	if err != nil {
+		return "", err
+	}
+
+	payUrl := fmt.Sprintf("https://open.weixin.qq.com/connect/oauth2/authorize?appid=%s&redirect_uri=%s&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect", pp.appId, wechatRsp.Response.PrepayId)
+	return payUrl, nil
+}
+
+func (pp *WechatPaymentProvider) Notify(request *http.Request, body []byte, authorityPublicKey string) (string, string, float64, string, string, error) {
+	bm, err := wechat.V3ParseNotifyToBodyMap(request)
+	if err != nil {
+		return "", "", 0, "", "", err
+	}
+
+	providerName := bm.Get("providerName")
+	productName := bm.Get("productName")
+
+	productDisplayName := bm.Get("body")
+	paymentName := bm.Get("out_trade_no")
+	price := util.ParseFloat(bm.Get("total_fee"))
+
+	notifyReq, err := wechat.V3ParseNotify(request)
+	if err != nil {
+		panic(err)
+	}
+
+	cert := pp.ClientV3.WxPublicKey()
+
+	err = notifyReq.VerifySignByPK(cert)
+	if err != nil {
+		return "", "", 0, "", "", err
+	}
+
+	return productDisplayName, paymentName, price, productName, providerName, nil
+}
+
+func (pp *WechatPaymentProvider) GetInvoice(paymentName string, personName string, personIdCard string, personEmail string, personPhone string, invoiceType string, invoiceTitle string, invoiceTaxId string) (string, error) {
+	return "", nil
+}

web/src/ProviderEditPage.js

@@ -461,13 +461,15 @@ class ProviderEditPage extends React.Component {
           )
         }
         {
-          this.state.provider.type !== "WeChat" && this.state.provider.type !== "Aliyun Captcha" ? null : (
+          this.state.provider.type !== "WeChat" && this.state.provider.type !== "Aliyun Captcha" && this.state.provider.type !== "WeChat Pay" ? null : (
             <React.Fragment>
               <Row style={{marginTop: "20px"}} >
                 <Col style={{marginTop: "5px"}} span={(Setting.isMobile()) ? 22 : 2}>
                   {this.state.provider.type === "Aliyun Captcha"
                     ? Setting.getLabel(i18next.t("provider:Scene"), i18next.t("provider:Scene - Tooltip"))
-                    : Setting.getLabel(i18next.t("provider:Client ID 2"), i18next.t("provider:Client ID 2 - Tooltip"))}
+                    : this.state.provider.type === "WeChat Pay"
+                      ? Setting.getLabel("appId", "appId")
+                      : Setting.getLabel(i18next.t("provider:Client ID 2"), i18next.t("provider:Client ID 2 - Tooltip"))}
                 </Col>
                 <Col span={22} >
                   <Input value={this.state.provider.clientId2} onChange={e => {
@@ -475,18 +477,22 @@ class ProviderEditPage extends React.Component {
                   }} />
                 </Col>
               </Row>
-              <Row style={{marginTop: "20px"}} >
+              {
-                <Col style={{marginTop: "5px"}} span={(Setting.isMobile()) ? 22 : 2}>
+                this.state.provider.type === "WeChat Pay" ? null : (
-                  {this.state.provider.type === "Aliyun Captcha"
+                  <Row style={{marginTop: "20px"}} >
-                    ? Setting.getLabel(i18next.t("provider:App key"), i18next.t("provider:App key - Tooltip"))
+                    <Col style={{marginTop: "5px"}} span={(Setting.isMobile()) ? 22 : 2}>
-                    : Setting.getLabel(i18next.t("provider:Client secret 2"), i18next.t("provider:Client secret 2 - Tooltip"))}
+                      {this.state.provider.type === "Aliyun Captcha"
-                </Col>
+                        ? Setting.getLabel(i18next.t("provider:App key"), i18next.t("provider:App key - Tooltip"))
-                <Col span={22} >
+                        : Setting.getLabel(i18next.t("provider:Client secret 2"), i18next.t("provider:Client secret 2 - Tooltip"))}
-                  <Input value={this.state.provider.clientSecret2} onChange={e => {
+                    </Col>
-                    this.updateProviderField("clientSecret2", e.target.value);
+                    <Col span={22} >
-                  }} />
+                      <Input value={this.state.provider.clientSecret2} onChange={e => {
-                </Col>
+                        this.updateProviderField("clientSecret2", e.target.value);
-              </Row>
+                      }} />
+                    </Col>
+                  </Row>
+                )
+              }
             </React.Fragment>
           )
         }