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package com.github.jodersky.skeybase
package verification
import scala.concurrent.Future
import Verifier.extractSignedStatement
import Verifier.finalHost
import Verifier.verifyStatement
import Verifier.withRedirects
import akka.actor.ActorSystem
import openpgp.Backend
import spray.client.pipelining.Get
import spray.client.pipelining.WithTransformerConcatenation
import spray.client.pipelining.sendReceive
import spray.client.pipelining.sendReceive$default$3
import spray.client.pipelining.unmarshal
import spray.httpx.SprayJsonSupport.sprayJsonUnmarshaller
import spray.json.DefaultJsonProtocol
object GitHubVerifier {
case class GistFile(rawUrl: String)
case class Gist(url: String, files: Map[String, GistFile])
object GitHubProtocol extends DefaultJsonProtocol {
implicit val gistFileFormat = jsonFormat(GistFile, "raw_url")
implicit val gistFormat = jsonFormat2(Gist)
}
}
class GitHubVerifier(backend: Backend) extends Verifier {
import Verifier._
import GitHubVerifier._
import GitHubVerifier.GitHubProtocol._
def verify(fingerprint: String, proof: Proof)(implicit sys: ActorSystem) = {
import sys.dispatcher
val urlOfHeadGist = (gists: Seq[Gist]) => {
val url = for (
gist <- gists.headOption;
(_, file) <- gist.files.headOption
) yield {
file.rawUrl
}
url getOrElse {
throw new NoSuchElementException("No gist found.")
}
}
val gistPipeline = withRedirects(sendReceive) ~> finalHost("api.github.com").tupled ~> unmarshal[Seq[Gist]] ~> urlOfHeadGist
val rawPipeline = sendReceive ~> unmarshal[String]
for (
rawUrl <- gistPipeline(Get("https://api.github.com/users/" + proof.nametag + "/gists"));
content <- rawPipeline(Get(rawUrl));
signed <- extractSignedStatement(content);
clear <- backend.verifySignature(signed, fingerprint);
verified <- verifyStatement(clear, "github", proof.nametag)
) yield {
proof
}
}
}
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