增加taptap支付

package/pay/taptap/sign.go

@@ -0,0 +1,101 @@
+package taptap
+
+import (
+	"bytes"
+	"context"
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"fmt"
+	"github.com/gogf/gf/v2/os/gtime"
+	"github.com/gogf/gf/v2/util/grand"
+	"io"
+	"net/http"
+	"sort"
+	"strconv"
+	"strings"
+)
+
+type pTapTap struct {
+	Secret   string `json:"secret" dc:"秘钥"`
+	OrderId  string `json:"order_id" dc:"订单唯一 ID"`
+	ClientId string `json:"client_id" dc:"应用的 Client ID"`
+}
+
+func New(orderId string) *pTapTap {
+	return &pTapTap{
+		Secret:   "5AFEWnadBA0NgJK2mxeBLQEde0qyIefxLSc4XKHsx9AwkQRhxzkQ9DixsOkK6gcV",
+		ClientId: "mox88lbz43edfukdgk",
+		OrderId:  orderId,
+	}
+}
+
+func (p *pTapTap) Sign(url string, body []byte) (sign string, ts int64, nonce string, err error) {
+	//nolint:gosec
+	secret := p.Secret
+	//body := gjson.MustEncode(g.Map{})
+	//body := []byte(`{"event_type":"charge.succeeded","order":{"order_id":"1790288650833465345","purchase_token":"rT2Et9p0cfzq4fwjrTsGSacq0jQExFDqf5gTy1alp+Y=","client_id":"o6nD4iNavjQj75zPQk","open_id":"4+Axcl2RFgXbt6MZwdh++w==","user_region":"US","goods_open_id":"com.goods.open_id","goods_name":"TestGoodsName","status":"charge.succeeded","amount":"19000000000","currency":"USD","create_time":"1716168000","pay_time":"1716168000","extra":"1111111111111111111"}}`)
+	//url := "https://example.com/my-service/v1/my-method"
+	ts = gtime.Now().Unix()
+	nonce = grand.S(5)
+	method := "POST"
+	header := http.Header{
+		"Content-Type": {"Content-Type: application/json; charset=utf-8"},
+		"X-Tap-Ts":     {strconv.FormatInt(ts, 10)},
+		"X-Tap-Nonce":  {nonce},
+	}
+	ctx := context.Background()
+	req, err := http.NewRequestWithContext(ctx, method, url, bytes.NewBuffer(body))
+	req.Header = header
+	sign, err = Sign(req, secret)
+	if err != nil {
+		panic(err)
+	}
+	req.Header.Set("X-Tap-Sign", sign)
+	return
+}
+
+// Sign signs the request.
+func Sign(req *http.Request, secret string) (string, error) {
+	methodPart := req.Method
+	urlPathAndQueryPart := req.URL.RequestURI()
+	headersPart, err := getHeadersPart(req.Header)
+	if err != nil {
+		return "", err
+	}
+	bodyPart, err := io.ReadAll(req.Body)
+	if err != nil {
+		return "", err
+	}
+	signParts := methodPart + "\n" + urlPathAndQueryPart + "\n" + headersPart + "\n" + string(bodyPart) + "\n"
+	fmt.Println(signParts)
+	h := hmac.New(sha256.New, []byte(secret))
+	h.Write([]byte(signParts))
+	rawSign := h.Sum(nil)
+	sign := base64.StdEncoding.EncodeToString(rawSign)
+	return sign, nil
+}
+
+// getHeadersPart returns the headers part of the request.
+func getHeadersPart(header http.Header) (string, error) {
+	var headerKeys []string
+	for k, v := range header {
+		k = strings.ToLower(k)
+		if !strings.HasPrefix(k, "x-tap-") {
+			continue
+		}
+		if k == "x-tap-sign" {
+			continue
+		}
+		if len(v) > 1 {
+			return "", fmt.Errorf("invalid header, %q has multiple values", k)
+		}
+		headerKeys = append(headerKeys, k)
+	}
+	sort.Strings(headerKeys)
+	headers := make([]string, 0, len(headerKeys))
+	for _, k := range headerKeys {
+		headers = append(headers, fmt.Sprintf("%s:%s", k, header.Get(k)))
+	}
+	return strings.Join(headers, "\n"), nil
+}