io.cardell.ff4s.flipt.auth.AuthMiddleware.scala Maven / Gradle / Ivy
/*
* Copyright 2023 Alex Cardell
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.cardell.flipt.auth
import cats.effect.kernel.MonadCancelThrow
import org.http4s.AuthScheme
import org.http4s.Credentials
import org.http4s.client.Client
import org.http4s.headers.Authorization
import org.typelevel.ci._
object AuthMiddleware {
def apply[F[_]: MonadCancelThrow](
client: Client[F],
strategy: AuthenticationStrategy
): Client[F] = Client { req =>
val authed = req.withHeaders(authHeader(strategy))
client.run(authed)
}
private def authHeader(
strategy: AuthenticationStrategy
): Authorization = {
val credentials =
strategy match {
case AuthenticationStrategy.ClientToken(token) =>
Credentials.Token(AuthScheme.Bearer, token)
case AuthenticationStrategy.JWT(token) =>
Credentials.Token(ci"JWT", token)
}
Authorization(credentials)
}
}