100 lines
2.4 KiB
Go
100 lines
2.4 KiB
Go
package pay
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import (
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha256"
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"encoding/base64"
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"fmt"
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"github.com/go-pay/crypto/xpem"
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"github.com/go-pay/gopay"
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"github.com/go-pay/gopay/wechat/v3"
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"github.com/go-pay/util/convert"
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"github.com/gogf/gf/v2/frame/g"
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"github.com/gogf/gf/v2/os/gfile"
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"strings"
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)
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var (
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// ctx = gctx.New()
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)
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// GooglePay 是一个处理Google支付的结构体。
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type WechatPay struct {
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Client *wechat.ClientV3
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PrivateKey string
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}
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func Wechat() *WechatPay {
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var pay = &WechatPay{}
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var err error
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cfg, _ := g.Cfg().Get(ctx, "pay.wechat")
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cfgMap := cfg.MapStrStr()
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MchId := cfgMap["mchid"]
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SerialNo := cfgMap["serialNo"]
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APIv3Key := cfgMap["apiV3Key"]
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PrivateKey := gfile.GetContents("manifest/pay/apiclient_key.pem")
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//PrivateKey := cfgMap["privateKey"]
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// NewClientV3 初始化微信客户端 v3
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// mchid：商户ID 或者服务商模式的 sp_mchid
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// serialNo：商户证书的证书序列号
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// apiV3Key：apiV3Key，商户平台获取
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// privateKey：私钥 apiclient_key.pem 读取后的内容
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pay.Client, err = wechat.NewClientV3(MchId, SerialNo, APIv3Key, PrivateKey)
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if err != nil {
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g.Log().Error(ctx, err)
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return nil
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}
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err = pay.Client.AutoVerifySign()
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if err != nil {
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g.Log().Error(ctx, err)
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return nil
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}
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return pay
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}
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// v3 鉴权请求Header
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func (c *WechatPay) Authorization(appid string, timestamp int64, nonceStr string, prepay_id string) (string, error) {
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//var (
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// jb = ""
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// timestamp = time.Now().Unix()
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// nonceStr = util.RandomString(32)
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//)
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//if bm != nil {
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// jb = bm.JsonBody()
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//}
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//path = strings.TrimSuffix(path, "?")
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ts := convert.Int642String(timestamp)
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_str := strings.Join([]string{appid, ts, nonceStr, prepay_id}, "\n") + "\n"
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//_str := appid + "\n" + timestamp + "\n" + nonceStr + "\n" + jb + "\n"
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sign, err := c.rsaSign(_str)
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if err != nil {
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return "", err
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}
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return sign, nil
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}
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func (c *WechatPay) rsaSign(str string) (string, error) {
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//if c.privateKey == nil {
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// return "", errors.New("privateKey can't be nil")
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//}
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privateKey := gfile.GetContents("manifest/pay/apiclient_key.pem")
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priKey, err := xpem.DecodePrivateKey([]byte(privateKey))
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h := sha256.New()
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h.Write([]byte(str))
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result, err := rsa.SignPKCS1v15(rand.Reader, priKey, crypto.SHA256, h.Sum(nil))
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if err != nil {
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return gopay.NULL, fmt.Errorf("[%w]: %+v", gopay.SignatureErr, err)
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}
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return base64.StdEncoding.EncodeToString(result), nil
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}
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