1 files changed, 9 insertions, 0 deletions
diff --git a/Services/PrincipalProvider.cs b/Services/PrincipalProvider.cs
new file mode 100644
index 0000000..e75c6c7
--- /dev/null
+++ b/Services/PrincipalProvider.cs
@@ -0,0 +1,9 @@
+namespace HyperBooru.Services;
+
+public abstract class PrincipalProvider {
+    public abstract bool ValidatePassword(HBPrincipal principal, string password);
+
+    public abstract HBPrincipal GetPrincipal(string username);
+
+    public abstract Group[] GetAllGroups(HBPrincipal principal);
+}