feature #7: Add routes for comment article

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

@@ -13,7 +13,7 @@ class ArticleVoter: Voter {
     }
 
     override fun supports(action: ActionI, call: ApplicationCall, subject: Any?): Boolean {
-        return action is Action && subject is Article?
+        return (action is Action || action is CommentVoter.Action) && subject is Article?
     }
 
     override fun vote(action: ActionI, call: ApplicationCall, subject: Any?): Vote {
@@ -26,6 +26,14 @@ class ArticleVoter: Voter {
             return Vote.GRANTED
         }
 
+        if (action == CommentVoter.Action.CREATE) {
+            return Vote.GRANTED
+        }
+
+        if (action == CommentVoter.Action.VIEW) {
+            return Vote.GRANTED
+        }
+
         if (action == Action.DELETE && user is User && subject is Article && subject.createdBy?.userId == user.id) {
             return Vote.GRANTED
         }

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

@@ -0,0 +1,38 @@
+package fr.dcproject.security.voter
+
+import fr.dcproject.entity.Comment
+import io.ktor.application.ApplicationCall
+
+class CommentVoter: 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 Comment<*>?
+    }
+
+    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.UPDATE && user != null && subject is Comment<*> && user.id == subject.createdBy?.userId) {
+            return Vote.GRANTED
+        }
+
+        if (action == Action.DELETE) {
+            return Vote.DENIED
+        }
+
+        return Vote.ABSTAIN
+    }
+}