/
HSTS.scala
40 lines (33 loc) · 1.28 KB
/
HSTS.scala
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package org.http4s
package server
package middleware
import cats.Functor
import cats.data.Kleisli
import org.http4s.headers.`Strict-Transport-Security`
import scala.concurrent.duration._
/** [[Middleware]] to add HTTP Strict Transport Security (HSTS) support adding
* the Strict Transport Security headers
*/
object HSTS {
// Default HSTS policy of waiting for 1 year and include sub domains
private val defaultHSTSPolicy = `Strict-Transport-Security`.unsafeFromDuration(
365.days,
includeSubDomains = true,
preload = false)
def apply[F[_]: Functor, A, G[_]: Functor](
routes: Kleisli[F, A, Response[G]]): Kleisli[F, A, Response[G]] =
apply(routes, defaultHSTSPolicy)
def apply[F[_]: Functor, A, G[_]: Functor](
http: Kleisli[F, A, Response[G]],
header: `Strict-Transport-Security`): Kleisli[F, A, Response[G]] = Kleisli { req =>
http.map(_.putHeaders(header)).apply(req)
}
def unsafeFromDuration[F[_]: Functor, A, G[_]: Functor](
http: Kleisli[F, A, Response[G]],
maxAge: FiniteDuration = 365.days,
includeSubDomains: Boolean = true,
preload: Boolean = false): Kleisli[F, A, Response[G]] = {
val header = `Strict-Transport-Security`.unsafeFromDuration(maxAge, includeSubDomains, preload)
apply(http, header)
}
}