sttp.client4.okhttp.BodyToOkHttp.scala Maven / Gradle / Ivy

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package sttp.client4.okhttp

import okhttp3.{
  Headers => OkHttpHeaders,
  MediaType,
  MultipartBody => OkHttpMultipartBody,
  RequestBody => OkHttpRequestBody
}
import okio.{BufferedSink, ByteString, Okio}
import sttp.capabilities.Streams
import sttp.client4.internal.Utf8
import sttp.client4._
import sttp.model.{Header, HeaderNames, Part}

import scala.collection.JavaConverters._
import scala.util.Try

private[okhttp] trait BodyToOkHttp[F[_], S] {
  val streams: Streams[S]
  def streamToRequestBody(stream: streams.BinaryStream, mt: MediaType, cl: Option[Long]): OkHttpRequestBody

  def apply[R](body: GenericRequestBody[R], ct: Option[String], cl: Option[Long]): Option[OkHttpRequestBody] = {
    val mediaType = ct.flatMap(c => Try(MediaType.parse(c)).toOption).orNull
    body match {
      case NoBody                                          => None
      case StringBody(b, e, _) if e.equalsIgnoreCase(Utf8) => Some(OkHttpRequestBody.create(b, mediaType))
      case StringBody(b, e, _)                             => Some(OkHttpRequestBody.create(b.getBytes(e), mediaType))
      case ByteArrayBody(b, _) =>
        Some(OkHttpRequestBody.create(b, mediaType))
      case ByteBufferBody(b, _) =>
        Some(OkHttpRequestBody.create(ByteString.of(b), mediaType))
      case InputStreamBody(b, _) =>
        Some(new OkHttpRequestBody() {
          override def writeTo(sink: BufferedSink): Unit =
            sink.writeAll(Okio.source(b))
          override def contentType(): MediaType = mediaType
        })
      case FileBody(b, _) =>
        Some(OkHttpRequestBody.create(b.toFile, mediaType))
      case StreamBody(s) =>
        Some(streamToRequestBody(s.asInstanceOf[streams.BinaryStream], mediaType, cl))
      case m: MultipartBody[_] =>
        val b = new OkHttpMultipartBody.Builder().setType(Option(mediaType).getOrElse(OkHttpMultipartBody.FORM))
        m.parts.foreach(addMultipart(b, _))
        Some(b.build())
    }
  }

  private def addMultipart(builder: OkHttpMultipartBody.Builder, mp: Part[GenericRequestBody[_]]): Unit = {
    val allHeaders = mp.headers :+ Header(HeaderNames.ContentDisposition, mp.contentDispositionHeaderValue)
    val headers =
      OkHttpHeaders.of(allHeaders.filterNot(_.is(HeaderNames.ContentType)).map(h => (h.name, h.value)).toMap.asJava)

    apply(mp.body, mp.contentType, mp.contentLength).foreach(builder.addPart(headers, _))
  }
}