Add a helper function which adds glob filtration to any LIST endpoint (#9962)

sdk/framework/filter.go

@@ -0,0 +1,34 @@
+package framework
+
+import (
+	"context"
+	"github.com/hashicorp/vault/sdk/logical"
+	"github.com/ryanuber/go-glob"
+)
+
+// GlobListFilter wraps an OperationFunc with an optional filter which excludes listed entries
+// which don't match a glob style pattern
+func GlobListFilter(fieldName string, callback OperationFunc) OperationFunc {
+	return func(ctx context.Context, req *logical.Request, data *FieldData) (*logical.Response, error) {
+		resp, err := callback(ctx, req, data)
+		if err != nil {
+			return nil, err
+		}
+
+		if keys, ok := resp.Data["keys"]; ok {
+			if entries, ok := keys.([]string); ok {
+				filter, ok := data.GetOk(fieldName)
+				if ok && filter != "" && filter != "*" {
+					var filteredEntries []string
+					for _, e := range entries {
+						if glob.Glob(filter.(string), e) {
+							filteredEntries = append(filteredEntries, e)
+						}
+					}
+					resp.Data["keys"] = filteredEntries
+				}
+			}
+		}
+		return resp, nil
+	}
+}