chore: 并入 iotlcm-app 历史到 app/（原提交 f40bda9）

app/server/internal/library/allocaterequest/request.go

@@ -0,0 +1,35 @@
+package allocaterequest
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"regexp"
+	"sort"
+	"strings"
+
+	"github.com/gogf/gf/v2/errors/gerror"
+)
+
+var validID = regexp.MustCompile(`^[A-Za-z0-9_-]{16,96}$`)
+
+func Key(tenant string, user int64, requestID string) (string, error) {
+	requestID = strings.TrimSpace(requestID)
+	if tenant == "" || user <= 0 || !validID.MatchString(requestID) {
+		return "", gerror.New("划拨请求标识无效")
+	}
+	value, err := json.Marshal([]any{tenant, user, "allocate", requestID})
+	if err != nil {
+		return "", gerror.Wrap(err, "生成划拨请求标识失败")
+	}
+	digest := sha256.Sum256(value)
+	return hex.EncodeToString(digest[:]), nil
+}
+
+func Fingerprint(cards []string, source, target int64, mode int, remark string) string {
+	sorted := append([]string(nil), cards...)
+	sort.Strings(sorted)
+	value, _ := json.Marshal([]any{sorted, source, target, mode, strings.TrimSpace(remark)})
+	digest := sha256.Sum256(value)
+	return hex.EncodeToString(digest[:])
+}