1 files changed, 37 insertions, 0 deletions

diff --git a/Acl.cs b/Acl.cs
index 7bffc50..a16d08a 100644
--- a/Acl.cs
+++ b/Acl.cs
@@ -12,6 +12,24 @@ public class Acl {
     public int           AclId   { get; set; }
     public HBObject      Subject { get; set; }
     public List<AclRule> Rules   { get; set; }
+
+    public static Type GetAclType(HBObject obj) {
+        var attrib = Attribute.GetCustomAttribute(obj.GetType(), typeof(AclTypeAttribute), true);
+
+        return (attrib as AclTypeAttribute)?.Type ?? typeof(ObjectPermissions);
+    }
+
+    public static IEnumerable<KeyValuePair<string, ulong>> GetPermissionDescriptions(HBObject obj) {
+        var aclType = GetAclType(obj);
+
+        foreach(var val in Enum.GetValues(aclType)) {
+            var attrib = (AclPermissionAttribute?) Attribute.GetCustomAttribute(
+                aclType.GetMember(val.ToString()!).First(),
+                typeof(AclPermissionAttribute));
+
+            yield return new(attrib?.Name ?? val.ToString()!, (ulong) val);
+        }
+    }
 }
 
 public class Acl<T> : Acl where T : Enum {
@@ -40,3 +58,22 @@ public class AclRule<T> : AclRule where T : Enum {
         set => base.Permissions = (ulong) (object) value;
     }
 }
+
+public class AclTypeAttribute : Attribute {
+    public Type Type { get; private init; }
+
+    public AclTypeAttribute(Type aclType) {
+        if(!aclType.IsEnum)
+            throw new ArgumentException();
+        Type = aclType;
+    }
+}
+
+public class AclPermissionAttribute : Attribute {
+    public string? Name { get; set; }
+
+    public AclPermissionAttribute() {}
+
+    public AclPermissionAttribute(string name) =>
+        Name = name;
+}