authenticateBasicPF

type AuthenticatorPF[T] = PartialFunction[Credentials, T]

def authenticateBasicPF[T](realm: String, authenticator: AuthenticatorPF[T]): AuthenticationDirective[T]

Description

Wraps the inner route with Http Basic authentication support using a given AuthenticatorPF[T]AuthenticatorPF<T> - Partial function from Optional<ProvidedCredentials> to String.

Provides support for handling HTTP Basic Authentication.

Refer to authenticateBasic for a detailed description of this directive.

Its semantics are equivalent to authenticateBasicPF ’s, where not handling a case in the Partial Function (PF) leaves the request to be rejected with a AuthenticationFailedRejectionAuthenticationFailedRejection rejection.

Longer-running authentication tasks (like looking up credentials in a database) should use authenticateBasicAsync or authenticateBasicPFAsync if you prefer to use the PartialFunction syntax.

See Credentials and password timing attacks for details about verifying the secret.

Example

Scala

copysourceval myUserPassAuthenticator: AuthenticatorPF[String] = {
  case p @ Credentials.Provided(id) if p.verify("p4ssw0rd")         => id
  case p @ Credentials.Provided(id) if p.verify("p4ssw0rd-special") => s"$id-admin"
}

val route =
  Route.seal {
    path("secured") {
      authenticateBasicPF(realm = "secure site", myUserPassAuthenticator) { userName =>
        complete(s"The user is '$userName'")
      }
    }
  }

// tests:
Get("/secured") ~> route ~> check {
  status shouldEqual StatusCodes.Unauthorized
  responseAs[String] shouldEqual "The resource requires authentication, which was not supplied with the request"
  header[`WWW-Authenticate`].get.challenges.head shouldEqual HttpChallenge("Basic", Some("secure site"), Map("charset" -> "UTF-8"))
}

val validCredentials = BasicHttpCredentials("John", "p4ssw0rd")
Get("/secured") ~> addCredentials(validCredentials) ~> // adds Authorization header
  route ~> check {
    responseAs[String] shouldEqual "The user is 'John'"
  }

val validAdminCredentials = BasicHttpCredentials("John", "p4ssw0rd-special")
Get("/secured") ~> addCredentials(validAdminCredentials) ~> // adds Authorization header
  route ~> check {
    responseAs[String] shouldEqual "The user is 'John-admin'"
  }

val invalidCredentials = BasicHttpCredentials("Peter", "pan")
Get("/secured") ~>
  addCredentials(invalidCredentials) ~> // adds Authorization header
  route ~> check {
    status shouldEqual StatusCodes.Unauthorized
    responseAs[String] shouldEqual "The supplied authentication is invalid"
    header[`WWW-Authenticate`].get.challenges.head shouldEqual HttpChallenge("Basic", Some("secure site"), Map("charset" -> "UTF-8"))
  }

Java

copysourceimport akka.http.javadsl.server.directives.SecurityDirectives.ProvidedCredentials;

import static akka.http.javadsl.server.Directives.authenticateBasicPF;
import static akka.http.javadsl.server.Directives.complete;
import static akka.http.javadsl.server.Directives.path;

final PartialFunction<Optional<ProvidedCredentials>, String> myUserPassAuthenticator =
  new JavaPartialFunction<Optional<ProvidedCredentials>, String>() {
    @Override
    public String apply(Optional<ProvidedCredentials> opt, boolean isCheck) throws Exception {
      if (opt.filter(c -> (c != null) && c.verify("p4ssw0rd")).isPresent()) {
        if (isCheck) return null;
        else return opt.get().identifier();
      } else if (opt.filter(c -> (c != null) && c.verify("p4ssw0rd-special")).isPresent()) {
        if (isCheck) return null;
        else return opt.get().identifier() + "-admin";
      } else {
        throw noMatch();
      }
    }
  };

final Route route = path("secured", () ->
  authenticateBasicPF("secure site", myUserPassAuthenticator, userName ->
    complete("The user is '" + userName + "'")
  )
).seal();

// tests:
testRoute(route).run(HttpRequest.GET("/secured"))
  .assertStatusCode(StatusCodes.UNAUTHORIZED)
  .assertEntity("The resource requires authentication, which was not supplied with the request")
  .assertHeaderExists("WWW-Authenticate", "Basic realm=\"secure site\",charset=UTF-8");

final HttpCredentials validCredentials =
  BasicHttpCredentials.createBasicHttpCredentials("John", "p4ssw0rd");
testRoute(route).run(HttpRequest.GET("/secured").addCredentials(validCredentials))
  .assertEntity("The user is 'John'");

final HttpCredentials validAdminCredentials =
  BasicHttpCredentials.createBasicHttpCredentials("John", "p4ssw0rd-special");
testRoute(route).run(HttpRequest.GET("/secured").addCredentials(validAdminCredentials))
  .assertEntity("The user is 'John-admin'");

final HttpCredentials invalidCredentials =
  BasicHttpCredentials.createBasicHttpCredentials("Peter", "pan");
testRoute(route).run(HttpRequest.GET("/secured").addCredentials(invalidCredentials))
  .assertStatusCode(StatusCodes.UNAUTHORIZED)
  .assertEntity("The supplied authentication is invalid")
  .assertHeaderExists("WWW-Authenticate", "Basic realm=\"secure site\",charset=UTF-8");