上传完善

utils/hash/hash.go

@@ -0,0 +1,70 @@
+package hash
+
+import (
+	"bytes"
+	"crypto/sha256"
+	"encoding/json"
+	"fmt"
+	"sort"
+)
+
+func JsonHashKey(v interface{}) string {
+	h := sha256.New()
+	h.Write(marshalOrdered(v))
+	return fmt.Sprintf("%x", h.Sum(nil))
+}
+
+func marshalOrdered(v interface{}) []byte {
+	switch v := v.(type) {
+	case map[string]interface{}:
+		sortedKeys := make([]string, 0, len(v))
+		for key := range v {
+			sortedKeys = append(sortedKeys, key)
+		}
+		sort.Strings(sortedKeys)
+
+		var buf bytes.Buffer
+		buf.WriteByte('{')
+		for i, key := range sortedKeys {
+			if i > 0 {
+				buf.WriteByte(',')
+			}
+			b, err := json.Marshal(key)
+			if err != nil {
+				panic(err)
+			}
+			buf.Write(b)
+			buf.WriteByte(':')
+
+			b = marshalOrdered(v[key])
+			buf.Write(b)
+		}
+		buf.WriteByte('}')
+		return buf.Bytes()
+
+	case []interface{}:
+		var buf bytes.Buffer
+
+		sort.Slice(v, func(i, j int) bool {
+			return bytes.Compare(marshalOrdered(v[i]), marshalOrdered(v[j])) == 1
+		})
+		buf.WriteByte('[')
+		for i, val := range v {
+			if i > 0 {
+				buf.WriteByte(',')
+			}
+
+			b := marshalOrdered(val)
+			buf.Write(b)
+		}
+		buf.WriteByte(']')
+		return buf.Bytes()
+
+	default:
+		b, err := json.Marshal(v)
+		if err != nil {
+			panic(err)
+		}
+		return b
+	}
+}