initial import

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

util.go

@@ -0,0 +1,52 @@
+package vault
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/hashicorp/vault/api"
+)
+
+func getKVinfo(cli *api.Client, path string) (string, int, error) {
+	info, err := getKVmount(cli, path)
+	if err != nil {
+		return "", 0, err
+	}
+
+	switch info {
+	case "1":
+		return "", 1, nil
+	case "2":
+		return "data", 2, nil
+	}
+
+	return "", 0, fmt.Errorf("Vault engine version info not found: %s", path)
+}
+
+func getKVmount(cli *api.Client, path string) (string, error) {
+	requestpath := "/v1/sys/mounts/" + path
+	rsp, err := cli.RawRequest(cli.NewRequest("GET", requestpath))
+	if err != nil {
+		return "", err
+	}
+	defer rsp.Body.Close()
+
+	type MountInfo struct {
+		Data struct {
+			Options struct {
+				Version string `json:"version"`
+			} `json:"options"`
+		} `json:"data"`
+	}
+
+	info := &MountInfo{}
+	if err = json.NewDecoder(rsp.Body).Decode(info); err != nil {
+		return "", err
+	}
+
+	if info.Data.Options.Version == "" {
+		return "1", nil
+	}
+
+	return info.Data.Options.Version, nil
+}