blob: 8722d6a44fd370355b56f641e3b6352d1f54706b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
package com.drivergrp.core
object auth {
trait Permission
trait Role {
val id: Id[Role]
val name: Name[Role]
def hasPermission(permission: Permission): Boolean = false
}
trait User {
def id: Id[User]
def roles: Set[Role]
}
final case class Macaroon(value: String)
final case class Base64[T](value: String)
final case class AuthToken(value: Base64[Macaroon])
object directives {
import akka.http.scaladsl.server._
import Directives._
val AuthenticationTokenHeader = "WWW-Authenticate"
type UserExtractor = AuthToken => Option[User]
def authorize(role: Role)(implicit userExtractor: UserExtractor): Directive1[Id[User]] = {
headerValueByName(AuthenticationTokenHeader).flatMap { tokenValue =>
val token = AuthToken(Base64[Macaroon](tokenValue))
userExtractor(token) match {
case Some(user) =>
if (user.roles.contains(role)) provide(user.id: Id[User])
else reject(ValidationRejection(s"User does not have the required ${role.name} role"))
case None =>
reject(ValidationRejection(s"Wasn't able to extract user for the token provided"))
}
}
}
def extractToken: Directive1[AuthToken] = {
headerValueByName(AuthenticationTokenHeader).flatMap { token =>
provide(AuthToken(Base64[Macaroon](token)))
}
}
}
}
|
