Implemented logout

app/controllers/authentication/AuthenticatedAction.scala

@@ -0,0 +1,35 @@
+package controllers.authentication
+
+import dao.AuthTokensDAO
+import jakarta.inject.Inject
+import models.AuthToken
+import play.api.libs.json.*
+import play.api.mvc.Results.Unauthorized
+import play.api.mvc.{ActionRefiner, Request, Result, WrappedRequest}
+
+import scala.concurrent.{ExecutionContext, Future}
+
+class AuthenticatedRequest[A](val token: AuthToken, request: Request[A]) extends WrappedRequest[A](request)
+
+class AuthenticatedAction @Inject()(authTokensDao: AuthTokensDAO)(implicit val executionContext: ExecutionContext) extends ActionRefiner[Request, AuthenticatedRequest] {
+  private final val tokenPrefix = "Token"
+
+  override protected def refine[A](request: Request[A]): Future[Either[Result, AuthenticatedRequest[A]]] = {
+    val unauthenticatedRequestError = Left(Unauthorized(Json.obj("error" -> "Unauthenticated")))
+    val authHeader = request.headers.get("Authorization")
+      .flatMap { header =>
+        if header.startsWith(tokenPrefix) then Some(header.substring(tokenPrefix.length).trim)
+        else None
+      }
+      .filter(_.nonEmpty)
+
+    authHeader match {
+      case Some(token) =>
+        authTokensDao.find(token).map {
+          case Some(authToken) => Right(AuthenticatedRequest[A](authToken, request))
+          case None => unauthenticatedRequestError
+        }
+      case None => Future.successful(unauthenticatedRequestError)
+    }
+  }
+}