增加oppo支付回调库

package/pay/oppo/model.go

@@ -0,0 +1,13 @@
+package oppo
+
+// OPPO支付回调参数结构体
+type PayCallback struct {
+	NotifyId     string `json:"notifyId" dc:"回调通知单号，以GC开头，必填，示例:GC20230314657000"`
+	PartnerOrder string `json:"partnerOrder" dc:"开发者订单号，必填，示例:123456"`
+	ProductName  string `json:"productName" dc:"商品名称，必填，示例:10元宝"`
+	ProductDesc  string `json:"productDesc" dc:"商品描述，必填，示例:10元宝等于1元"`
+	Price        int64  `json:"price" dc:"商品价格，单位为分，需要游戏服务端做验证，必填，示例:100"`
+	Count        int    `json:"count" dc:"商品数量（一般为1），必填，示例:1"`
+	Attach       string `json:"attach" dc:"请求支付时上传的附加参数，可能为空，选填"`
+	Sign         string `json:"sign" dc:"OPPO服务端签名，需要游戏服务端做验证，必填"`
+}

package/pay/oppo/oppo.go

@@ -0,0 +1,119 @@
+package oppo
+
+import (
+	"context"
+	"crypto"
+	"crypto/rsa"
+	"crypto/sha1"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/pem"
+	"fmt"
+	"github.com/gogf/gf/v2/errors/gerror"
+	"github.com/gogf/gf/v2/frame/g"
+	"net/http"
+	"strings"
+)
+
+// 跟充值平台通信的加密key
+//const PUBLIC_KEY = `dfsdfs`
+
+type OppoType struct {
+	PublicKey string `json:"public_key"`
+}
+
+func New(PublicKey string) *OppoType {
+
+	return &OppoType{
+		PublicKey: PublicKey,
+	}
+}
+
+func (p *OppoType) Verify(ctx context.Context, data map[string]string) error {
+	// 解析请求参数
+	for k, v := range data {
+		if v == "" || v == "0" {
+			delete(data, k)
+		}
+	}
+
+	//data["notifyId"] = getParam(r, "notifyId")
+	//data["partnerOrder"] = getParam(r, "partnerOrder")
+	//data["productName"] = getParam(r, "productName")
+	//data["productDesc"] = getParam(r, "productDesc")
+	//data["price"] = getParam(r, "price")
+	//data["count"] = getParam(r, "count")
+	//data["attach"] = getParam(r, "attach")
+	//data["sign"] = getParam(r, "sign")
+
+	// 验证签名
+	result, err := p.rsaVerify(data)
+	if err != nil {
+		//http.Error(w, "Verification error: "+err.Error(), http.StatusInternalServerError)
+		g.Log().Errorf(ctx, "Verification error: %v", err.Error())
+		return err
+	}
+
+	if result {
+		// TODO::验证成功，处理后续逻辑
+		//fmt.Fprint(w, "Verification successful")
+		//g.Log().Errorf(ctx, "Verification error: %v", err.Error())
+	} else {
+		// TODO::验证失败，处理后续逻辑
+		//http.Error(w, "Verification failed", http.StatusBadRequest)
+		g.Log().Error(ctx, "Verification failed")
+		err = gerror.New("Verification failed")
+	}
+	return nil
+}
+
+func (p *OppoType) getParam(r *http.Request, paramName string) string {
+	r.ParseForm()
+	if value := r.FormValue(paramName); value != "" {
+		return strings.TrimSpace(value)
+	}
+	return ""
+}
+
+func (p *OppoType) rsaVerify(contents map[string]string) (bool, error) {
+	// 构建待签名字符串
+	strContents := fmt.Sprintf("notifyId=%s&partnerOrder=%s&productName=%s&productDesc=%s&price=%s&count=%s&attach=%s",
+		contents["notifyId"], contents["partnerOrder"], contents["productName"],
+		contents["productDesc"], contents["price"], contents["count"], contents["attach"])
+
+	// 解析公钥
+	publicKey := p.PublicKey
+	pemData := []byte("-----BEGIN PUBLIC KEY-----\n" +
+		strings.ReplaceAll(publicKey, " ", "\n") +
+		"\n-----END PUBLIC KEY-----")
+
+	block, _ := pem.Decode(pemData)
+	if block == nil {
+		return false, fmt.Errorf("failed to decode PEM block")
+	}
+
+	pubInterface, err := x509.ParsePKIXPublicKey(block.Bytes)
+	if err != nil {
+		return false, err
+	}
+
+	pubKey, ok := pubInterface.(*rsa.PublicKey)
+	if !ok {
+		return false, fmt.Errorf("public key is not an RSA public key")
+	}
+
+	// 解码签名
+	signature, err := base64.StdEncoding.DecodeString(contents["sign"])
+	if err != nil {
+		return false, err
+	}
+
+	// 计算内容的哈希值
+	hash := sha1.New()
+	hash.Write([]byte(strContents))
+	hashed := hash.Sum(nil)
+
+	// 验证签名
+	err = rsa.VerifyPKCS1v15(pubKey, crypto.SHA1, hashed, signature)
+	return err == nil, err
+}