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Sketch route for retrieving original file

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This commit is contained in:
Eike Kettner
2020-02-20 22:12:27 +01:00
parent 7e1678da98
commit 39809f9d05
3 changed files with 106 additions and 13 deletions
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38
modules/restserver/src/main/scala/docspell/restserver/routes/AttachmentRoutes.scala
View File

@ -1,5 +1,6 @@
package docspell.restserver.routes
import bitpeace.FileMeta
import cats.data.NonEmptyList
import cats.effect._
import cats.implicits._
@ -22,13 +23,13 @@ object AttachmentRoutes {
val dsl = new Http4sDsl[F] {}
import dsl._
def withResponseHeaders(resp: F[Response[F]])(data: OItem.AttachmentData[F]): F[Response[F]] = {
def withResponseHeaders(resp: F[Response[F]])(data: OItem.BinaryData[F]): F[Response[F]] = {
val mt = MediaType.unsafeParse(data.meta.mimetype.asString)
val ctype = `Content-Type`(mt)
val cntLen: Header = `Content-Length`.unsafeFromLong(data.meta.length)
val eTag: Header = ETag(data.meta.checksum)
val disp: Header =
`Content-Disposition`("inline", Map("filename" -> data.ra.name.getOrElse("")))
`Content-Disposition`("inline", Map("filename" -> data.name.getOrElse("")))
resp.map(r =>
if (r.status == NotModified) r.withHeaders(ctype, eTag, disp)
@ -36,7 +37,7 @@ object AttachmentRoutes {
)
}
def makeByteResp(data: OItem.AttachmentData[F]): F[Response[F]] =
def makeByteResp(data: OItem.BinaryData[F]): F[Response[F]] =
withResponseHeaders(Ok(data.data.take(data.meta.length)))(data)
HttpRoutes.of {
@ -52,7 +53,7 @@ object AttachmentRoutes {
for {
fileData <- backend.item.findAttachment(id, user.account.collective)
inm = req.headers.get(`If-None-Match`).flatMap(_.tags)
matches = matchETag(fileData, inm)
matches = matchETag(fileData.map(_.meta), inm)
resp <- fileData
.map({ data =>
if (matches) withResponseHeaders(NotModified())(data)
@ -61,6 +62,27 @@ object AttachmentRoutes {
.getOrElse(NotFound(BasicResult(false, "Not found")))
} yield resp
case HEAD -> Root / Ident(id) / "original" =>
for {
fileData <- backend.item.findAttachmentSource(id, user.account.collective)
resp <- fileData
.map(data => withResponseHeaders(Ok())(data))
.getOrElse(NotFound(BasicResult(false, "Not found")))
} yield resp
case req @ GET -> Root / Ident(id) / "original" =>
for {
fileData <- backend.item.findAttachmentSource(id, user.account.collective)
inm = req.headers.get(`If-None-Match`).flatMap(_.tags)
matches = matchETag(fileData.map(_.meta), inm)
resp <- fileData
.map({ data =>
if (matches) withResponseHeaders(NotModified())(data)
else makeByteResp(data)
})
.getOrElse(NotFound(BasicResult(false, "Not found")))
} yield resp
case GET -> Root / Ident(id) / "view" =>
// this route exists to provide a stable url
// it redirects currently to viewerjs
@ -78,12 +100,12 @@ object AttachmentRoutes {
}
private def matchETag[F[_]](
fileData: Option[OItem.AttachmentData[F]],
noneMatch: Option[NonEmptyList[EntityTag]]
fileData: Option[FileMeta],
noneMatch: Option[NonEmptyList[EntityTag]]
): Boolean =
(fileData, noneMatch) match {
case (Some(fd), Some(nm)) =>
fd.meta.checksum == nm.head.tag
case (Some(meta), Some(nm)) =>
meta.checksum == nm.head.tag
case _ =>
false
}