1 /*
2  *  Make.org Core API
3  *  Copyright (C) 2018 Make.org
4  *
5  * This program is free software: you can redistribute it and/or modify
6  *  it under the terms of the GNU Affero General Public License as
7  *  published by the Free Software Foundation, either version 3 of the
8  *  License, or (at your option) any later version.
9  *
10  *  This program is distributed in the hope that it will be useful,
11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  *  GNU Affero General Public License for more details.
14  *
15  *  You should have received a copy of the GNU Affero General Public License
16  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
17  *
18  */
19 
20 package org.make.api.user.social
21 
22 import akka.http.scaladsl.model._
23 import akka.http.scaladsl.model.headers.{Authorization, OAuth2BearerToken}
24 import akka.http.scaladsl.unmarshalling.PredefinedFromEntityUnmarshallers.stringUnmarshaller
25 import akka.http.scaladsl.unmarshalling.{Unmarshal, Unmarshaller}
26 import akka.http.scaladsl.{Http, HttpExt}
27 import grizzled.slf4j.Logging
28 import de.heikoseeberger.akkahttpcirce.ErrorAccumulatingCirceSupport
29 import org.make.api.technical.ActorSystemComponent
30 import org.make.api.user.social.models.google.PeopleInfo
31 
32 import scala.concurrent.ExecutionContext.Implicits.global
33 import scala.concurrent.Future
34 
35 trait GoogleApiComponent {
36   def googleApi: GoogleApi
37 }
38 
39 trait GoogleApi {
40   def peopleInfo(userToken: String): Future[PeopleInfo]
41 }
42 
43 trait DefaultGoogleApiComponent extends GoogleApiComponent with ErrorAccumulatingCirceSupport {
44   self: ActorSystemComponent with SocialProvidersConfigurationComponent =>
45 
46   override lazy val googleApi: GoogleApi = new DefaultGoogleApi
47 
48   class DefaultGoogleApi extends GoogleApi with Logging {
49     private val http: HttpExt = Http()
50 
51     override def peopleInfo(userToken: String): Future[PeopleInfo] = {
52       val apiKey = socialProvidersConfiguration.google.apiKey
53       val url =
54         s"https://people.googleapis.com/v1/people/me?key=$apiKey&personFields=metadata,names,birthdays,photos,emailAddresses"
55 
56       http
57         .singleRequest(
58           HttpRequest(method = HttpMethods.GET, uri = url, headers = Seq(Authorization(OAuth2BearerToken(userToken))))
59         )
60         .flatMap(unmarshal[PeopleInfo](_))
61     }
62 
63     private def unmarshal[Entity](response: HttpResponse, expectedCode: StatusCode = StatusCodes.OK)(
64       implicit unmarshaller: Unmarshaller[ResponseEntity, Entity]
65     ): Future[Entity] = {
66       logger.debug(s"Server answered $response")
67       response match {
68         case HttpResponse(`expectedCode`, _, entity, _) =>
69           Unmarshal(entity).to[Entity]
70         case HttpResponse(code, _, entity, _) =>
71           Unmarshal(entity).to[String].flatMap { error =>
72             Future.failed(SocialProviderException(s"Got unexpected response code: $code, with body: $error"))
73           }
74       }
75     }
76   }
77 }