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Provide fallback image for previews

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This commit is contained in:
Eike Kettner 2020-11-09 08:57:43 +01:00
parent d4bbb936b6
commit 8c8788bc69
7 changed files with 178 additions and 15 deletions
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128
modules/restserver/src/main/resources/docspell/restserver/no-preview.svg Normal file
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@ -0,0 +1,128 @@
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9
modules/restserver/src/main/scala/docspell/restserver/RestServer.scala
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@ -33,7 +33,7 @@ object RestServer {
"/api/info" -> routes.InfoRoutes(),
"/api/v1/open/" -> openRoutes(cfg, restApp),
"/api/v1/sec/" -> Authenticate(restApp.backend.login, cfg.auth) { token =>
securedRoutes(cfg, restApp, token)
securedRoutes(cfg, pools, restApp, token)
},
"/api/doc" -> templates.doc,
"/app/assets" -> WebjarRoutes.appRoutes[F](pools.blocker),
@ -57,8 +57,9 @@ object RestServer {
)
}.drain
def securedRoutes[F[_]: Effect](
def securedRoutes[F[_]: Effect: ContextShift](
cfg: Config,
pools: Pools,
restApp: RestApp[F],
token: AuthToken
): HttpRoutes[F] =
@ -72,9 +73,9 @@ object RestServer {
"user" -> UserRoutes(restApp.backend, token),
"collective" -> CollectiveRoutes(restApp.backend, token),
"queue" -> JobQueueRoutes(restApp.backend, token),
"item" -> ItemRoutes(cfg, restApp.backend, token),
"item" -> ItemRoutes(cfg, pools.blocker, restApp.backend, token),
"items" -> ItemMultiRoutes(restApp.backend, token),
"attachment" -> AttachmentRoutes(restApp.backend, token),
"attachment" -> AttachmentRoutes(pools.blocker, restApp.backend, token),
"upload" -> UploadRoutes.secured(restApp.backend, cfg, token),
"checkfile" -> CheckFileRoutes.secured(restApp.backend, token),
"email/send" -> MailSendRoutes(restApp.backend, token),

13
modules/restserver/src/main/scala/docspell/restserver/http4s/BinaryUtil.scala
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@ -1,6 +1,7 @@
package docspell.restserver.http4s
import cats.data.NonEmptyList
import cats.data.OptionT
import cats.effect._
import cats.implicits._
@ -51,4 +52,16 @@ object BinaryUtil {
false
}
def noPreview[F[_]: Sync: ContextShift](
blocker: Blocker,
req: Option[Request[F]]
): OptionT[F, Response[F]] =
StaticFile.fromResource(
name = "/docspell/restserver/no-preview.svg",
blocker = blocker,
req = req,
preferGzipped = true,
classloader = getClass.getClassLoader().some
)
}

2
modules/restserver/src/main/scala/docspell/restserver/http4s/QueryParam.scala
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@ -29,4 +29,6 @@ object QueryParam {
object ContactKindOpt extends OptionalQueryParamDecoderMatcher[ContactKind]("kind")
object QueryOpt extends OptionalQueryParamDecoderMatcher[QueryString]("q")
object WithFallback extends OptionalQueryParamDecoderMatcher[Boolean]("withFallback")
}

21
modules/restserver/src/main/scala/docspell/restserver/routes/AttachmentRoutes.scala
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@ -11,6 +11,7 @@ import docspell.common.MakePreviewArgs
import docspell.restapi.model._
import docspell.restserver.conv.Conversions
import docspell.restserver.http4s.BinaryUtil
import docspell.restserver.http4s.{QueryParam => QP}
import docspell.restserver.webapp.Webjars
import org.http4s._
@ -21,7 +22,11 @@ import org.http4s.headers._
object AttachmentRoutes {
def apply[F[_]: Effect](backend: BackendApp[F], user: AuthToken): HttpRoutes[F] = {
def apply[F[_]: Effect: ContextShift](
blocker: Blocker,
backend: BackendApp[F],
user: AuthToken
): HttpRoutes[F] = {
val dsl = new Http4sDsl[F] {}
import dsl._
@ -105,19 +110,25 @@ object AttachmentRoutes {
.getOrElse(NotFound(BasicResult(false, "Not found")))
} yield resp
case req @ GET -> Root / Ident(id) / "preview" =>
case req @ GET -> Root / Ident(id) / "preview" :? QP.WithFallback(flag) =>
def notFound =
NotFound(BasicResult(false, "Not found"))
for {
fileData <-
backend.itemSearch.findAttachmentPreview(id, user.account.collective)
inm = req.headers.get(`If-None-Match`).flatMap(_.tags)
matches = BinaryUtil.matchETag(fileData.map(_.meta), inm)
inm = req.headers.get(`If-None-Match`).flatMap(_.tags)
matches = BinaryUtil.matchETag(fileData.map(_.meta), inm)
fallback = flag.getOrElse(false)
resp <-
fileData
.map { data =>
if (matches) withResponseHeaders(NotModified())(data)
else makeByteResp(data)
}
.getOrElse(NotFound(BasicResult(false, "Not found")))
.getOrElse(
if (fallback) BinaryUtil.noPreview(blocker, req.some).getOrElseF(notFound)
else notFound
)
} yield resp
case HEAD -> Root / Ident(id) / "preview" =>

18
modules/restserver/src/main/scala/docspell/restserver/routes/ItemRoutes.scala
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@ -15,6 +15,7 @@ import docspell.restserver.Config
import docspell.restserver.conv.Conversions
import docspell.restserver.http4s.BinaryUtil
import docspell.restserver.http4s.Responses
import docspell.restserver.http4s.{QueryParam => QP}
import org.http4s.HttpRoutes
import org.http4s.circe.CirceEntityDecoder._
@ -26,8 +27,9 @@ import org.log4s._
object ItemRoutes {
private[this] val logger = getLogger
def apply[F[_]: Effect](
def apply[F[_]: Effect: ContextShift](
cfg: Config,
blocker: Blocker,
backend: BackendApp[F],
user: AuthToken
): HttpRoutes[F] = {
@ -318,18 +320,24 @@ object ItemRoutes {
resp <- Ok(Conversions.basicResult(res, "Attachment moved."))
} yield resp
case req @ GET -> Root / Ident(id) / "preview" =>
case req @ GET -> Root / Ident(id) / "preview" :? QP.WithFallback(flag) =>
def notFound =
NotFound(BasicResult(false, "Not found"))
for {
preview <- backend.itemSearch.findItemPreview(id, user.account.collective)
inm = req.headers.get(`If-None-Match`).flatMap(_.tags)
matches = BinaryUtil.matchETag(preview.map(_.meta), inm)
inm = req.headers.get(`If-None-Match`).flatMap(_.tags)
matches = BinaryUtil.matchETag(preview.map(_.meta), inm)
fallback = flag.getOrElse(false)
resp <-
preview
.map { data =>
if (matches) BinaryUtil.withResponseHeaders(dsl, NotModified())(data)
else BinaryUtil.makeByteResp(dsl)(data).map(Responses.noCache)
}
.getOrElse(NotFound(BasicResult(false, "Not found")))
.getOrElse(
if (fallback) BinaryUtil.noPreview(blocker, req.some).getOrElseF(notFound)
else notFound
)
} yield resp
case HEAD -> Root / Ident(id) / "preview" =>

2
modules/webapp/src/main/elm/Api.elm
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@ -1505,7 +1505,7 @@ deleteAllItems flags ids receive =
itemPreviewURL : String -> String
itemPreviewURL itemId =
"/api/v1/sec/item/" ++ itemId ++ "/preview"
"/api/v1/sec/item/" ++ itemId ++ "/preview?withFallback=true"
fileURL : String -> String