Add Security to Citizen

src/main/kotlin/fr/dcproject/security/voter/CitizenVoter.kt

@@ -0,0 +1,42 @@
+package fr.dcproject.security.voter
+
+import fr.dcproject.entity.Citizen
+import fr.dcproject.entity.User
+import io.ktor.application.ApplicationCall
+
+class CitizenVoter: Voter {
+    enum class Action: ActionI {
+        CREATE,
+        UPDATE,
+        VIEW,
+        DELETE
+    }
+
+    override fun supports(action: ActionI, call: ApplicationCall, subject: Any?): Boolean {
+        return action is Action && subject is Citizen?
+    }
+
+    override fun vote(action: ActionI, call: ApplicationCall, subject: Any?): Vote {
+        val user = call.user
+        if (action == Action.CREATE && user != null) {
+            return Vote.GRANTED
+        }
+
+        if (action == Action.VIEW) {
+            return Vote.GRANTED
+        }
+
+        if (action == Action.DELETE) {
+            return Vote.DENIED
+        }
+
+        if (action == Action.UPDATE &&
+            user is User &&
+            subject is Citizen &&
+            subject.user?.id == user.id) {
+            return Vote.GRANTED
+        }
+
+        return Vote.ABSTAIN
+    }
+}