missing parameter type on file upload with silhouette - scala

Question

now implement file-uploading with silhouette.
got from the original
https://github.com/playframework/play-scala-fileupload-example/tree/2.5.x
silhouette
https://github.com/mohiva/play-silhouette-seed/tree/4.0.0/app
i want to fix def upload method with silhouette to indicate identity(user name) in fileUpload2.scala.html , so added following line;
silhouette.SecuredAction.async { implicit request =>
Future.successful(Ok(views.html.fileUpload2(request.identity,fileOption)))
}
refered to this link;
http://grokbase.com/p/gg/play-framework/133pt061br/2-1-0-scala-action-question
but not work well.
(FileUploadController.scala)
package controllers
import java.io.File
import java.nio.file.attribute.PosixFilePermission._
import java.nio.file.attribute.PosixFilePermissions
import java.nio.file.{ Files, Path }
import java.util
import javax.inject._
import com.mohiva.play.silhouette.api._
import com.mohiva.play.silhouette.api.repositories.AuthInfoRepository
import com.mohiva.play.silhouette.api.services.AvatarService
import com.mohiva.play.silhouette.api.util.PasswordHasherRegistry
import com.mohiva.play.silhouette.impl.providers._
import com.mohiva.play.silhouette.api.Authenticator.Implicits._
import com.mohiva.play.silhouette.api.util.{ Clock, Credentials }
import com.mohiva.play.silhouette.api.actions.SecuredRequest
import utils.auth.{ DefaultEnv, WithProvider }
import forms.{ FileUploadForm, FileUploadFormSupport }
import models.User
import models.services.{ AuthTokenService, UserService }
import net.ceedubs.ficus.Ficus._
import akka.stream.IOResult
import akka.stream.scaladsl._
import akka.util.ByteString
import play.api._
import play.api.data.Form
import play.api.data.Forms._
import play.api.i18n.{ I18nSupport, Messages, MessagesApi }
import play.api.libs.streams._
import play.api.libs.concurrent.Execution.Implicits._
import play.api.libs.mailer.{ Email, MailerClient }
import play.api.mvc.MultipartFormData.FilePart
import play.api.mvc._
import play.core.parsers.Multipart.FileInfo
import scala.concurrent.{ ExecutionContext, Future }
import scala.concurrent.duration._
import scala.language.postfixOps
class FileUploadController #Inject() (
val messagesApi: MessagesApi,
silhouette: Silhouette[DefaultEnv],
userService: UserService,
authInfoRepository: AuthInfoRepository,
authTokenService: AuthTokenService,
avatarService: AvatarService,
passwordHasherRegistry: PasswordHasherRegistry,
mailerClient: MailerClient,
implicit val webJarAssets: WebJarAssets,
socialProviderRegistry: SocialProviderRegistry,
ec: ExecutionContext,
credentialsProvider: CredentialsProvider
)
extends Controller with i18n.I18nSupport {
private val logger = org.slf4j.LoggerFactory.getLogger(this.getClass)
def fileuploadview = silhouette.SecuredAction.async { implicit request =>
Future.successful(Ok(views.html.fileUpload(request.identity, FileUploadForm.form)))
}
type FilePartHandler[A] = FileInfo => Accumulator[ByteString, FilePart[A]]
def handleFilePartAsFile: FilePartHandler[File] = {
case FileInfo(partName, filename, contentType) =>
val attr = PosixFilePermissions.asFileAttribute(util.EnumSet.of(OWNER_READ, OWNER_WRITE))
val path: Path = Files.createTempFile("multipartBody", "tempFile", attr)
val file = path.toFile
val fileSink: Sink[ByteString, Future[IOResult]] = FileIO.toPath(path)
val accumulator: Accumulator[ByteString, IOResult] = Accumulator(fileSink)
accumulator.map {
case IOResult(count, status) =>
logger.info(s"count = $count, status = $status")
FilePart(partName, filename, contentType, file)
}
}
def operateOnTempFile(file: File) = {
val size = Files.size(file.toPath)
logger.info(s"size = ${size}")
Files.deleteIfExists(file.toPath)
size
}
def upload = Action(parse.multipartFormData(handleFilePartAsFile)) { implicit request =>
val fileOption = request.body.file("picName").map {
case FilePart(key, filename, contentType, file) =>
logger.info(s"key = ${key}, filename = ${filename}, contentType = ${contentType}, file = $file")
val data = operateOnTempFile(file)
data
}
FileUploadFormSupport.picsave(_)
silhouette.SecuredAction.async { implicit request =>
Future.successful(Ok(views.html.fileUpload2(request.identity,fileOption)))
}
}
}
the problem is the last lines;
silhouette.SecuredAction.async { implicit request =>
Future.successful(Ok(views.html.fileUpload2(request.identity,fileOption)))
compile error;
missing parameter type
occured.

Answer 1

You use the Silhouette action at the wrong place. You should write:
def upload = silhouette.SecuredAction.async(parse.multipartFormData(handleFilePartAsFile)) {
implicit request =>
// Your upload code
}
A Silhouette action is a default Play action with the advantage that the request type is extended with the identity and the authenticator.