Scala Play filter to dump body / everything

play_filter_dump_body.scala

import java.net.URLDecoder
import play.api.Logger
import play.api.libs.iteratee.Iteratee
import play.api.mvc.{ Result, RequestHeader, Filter }
import play.api.libs.concurrent.Execution.Implicits.defaultContext
import scala.concurrent.Future

object LoggingFilter extends Filter {
  override def apply(nextFilter: (RequestHeader) => Future[Result])(rh: RequestHeader): Future[Result] = {
    val startTime = System.currentTimeMillis()
    nextFilter(rh).map { result =>
      val endTime = System.currentTimeMillis()
      val requestTime = endTime - startTime

      // additionally, "uncrypt" URL-encoded input
      def decoder(s: String) = URLDecoder.decode(s, "US-ASCII")
      val decoded = rh.queryString.map {
        case (s, ss) =>
          (decoder(s),
            ss.map {
              decoder(_)
            })
      }
      Logger.info(s"LF: ${rh.method} ${rh.uri} DEC:${decoded}} took ${requestTime}ms, ret: [${result.header.status}]")

      val consumeForeach = Iteratee.foreach[Array[Byte]](s => Logger.debug("BChunk: " + s.map(_.toChar).mkString))

      result.body |>>> consumeForeach

      result
    }
  }
}