无订阅 支付后出现两个订阅

pkg/signature/canonical.go

@@ -0,0 +1,50 @@
+package signature
+
+import (
+	"crypto/sha256"
+	"fmt"
+	"net/url"
+	"sort"
+	"strings"
+)
+
+// BuildStringToSign StringToSign = METHOD\nPATH\nCANONICAL_QUERY\nBODY_SHA256\nX-App-Id\nX-Timestamp\nX-Nonce
+func BuildStringToSign(method, path, rawQuery string, body []byte, appId, timestamp, nonce string) string {
+	canonical := canonicalQuery(rawQuery)
+	bodyHash := sha256Hex(body)
+	parts := []string{
+		strings.ToUpper(method),
+		path,
+		canonical,
+		bodyHash,
+		appId,
+		timestamp,
+		nonce,
+	}
+	return strings.Join(parts, "\n")
+}
+
+func canonicalQuery(rawQuery string) string {
+	if rawQuery == "" {
+		return ""
+	}
+	values, err := url.ParseQuery(rawQuery)
+	if err != nil {
+		return rawQuery
+	}
+	keys := make([]string, 0, len(values))
+	for key := range values {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	parts := make([]string, 0, len(keys))
+	for _, key := range keys {
+		parts = append(parts, fmt.Sprintf("%s=%s", key, values.Get(key)))
+	}
+	return strings.Join(parts, "&")
+}
+
+func sha256Hex(data []byte) string {
+	h := sha256.Sum256(data)
+	return fmt.Sprintf("%x", h)
+}