Add route to get settings for a share

Returns the client settings of the creator.

modules/backend/src/main/scala/docspell/backend/ops/OShare.scala

@@ -48,6 +48,8 @@ trait OShare[F[_]] {
 
   // ---
 
+  def findActiveById(id: Ident): OptionT[F, ShareData]
+
   /** Verifies the given id and password and returns a authorization token on success. */
   def verify(key: ByteVector)(id: Ident, password: Option[Password]): F[VerifyResult]
 
@@ -277,6 +279,9 @@ object OShare {
               VerifyResult.invalidToken.pure[F]
         }
 
+      def findActiveById(id: Ident): OptionT[F, ShareData] =
+        RShare.findCurrentActive(id).mapK(store.transform).map(ShareData.tupled)
+
       def findShareQuery(id: Ident): OptionT[F, ShareQuery] =
         RShare
           .findCurrentActive(id)

modules/restapi/src/main/resources/docspell-openapi.yml

@@ -2304,7 +2304,7 @@ paths:
   /share/attachment/{id}/preview:
     head:
       operationId: "share-attach-check-preview"
-      tags: [ Attachment ]
+      tags: [ Share ]
       summary: Get the headers to a preview image of an attachment file.
       description: |
         Checks if an image file showing a preview of the attachment is
@@ -2320,7 +2320,7 @@ paths:
           description: NotFound
     get:
       operationId: "share-attach-get-preview"
-      tags: [ Attachment ]
+      tags: [ Share ]
       summary: Get a preview image of an attachment file.
       description: |
         Gets a image file showing a preview of the attachment. Usually
@@ -2347,6 +2347,37 @@ paths:
               schema:
                 type: string
                 format: binary
+  /share/clientSettings/{clientId}:
+    parameters:
+      - $ref: "#/components/parameters/clientId"
+    get:
+      operationId: "share-clientsettings-get"
+      tags: [ Share ]
+      summary: Return the client settings of current user
+      description: |
+        Returns the settings for the share. This is the settings of
+        the user who created the share. It is created by merging the
+        client settings for the collective and the user's own client
+        settings into one json structure.
+
+        Null, Array, Boolean, String and Number are treated as values,
+        and values from the users settings completely replace values
+        from the collective's settings.
+        
+        The `clientId` is an identifier to a client application. It
+        returns a JSON structure. The server doesn't care about the
+        actual data, since it is meant to be interpreted by clients.
+      security:
+        - shareTokenHeader: []
+      responses:
+        422:
+          description: BadRequest
+        200:
+          description: Ok
+          content:
+            application/json:
+              schema: {}
+
 
   /admin/user/resetPassword:
     post:

modules/restserver/src/main/scala/docspell/restserver/RestServer.scala

@@ -213,7 +213,8 @@ object RestServer {
     Router(
       "search" -> ShareSearchRoutes(restApp.backend, cfg, token),
       "attachment" -> ShareAttachmentRoutes(restApp.backend, token),
-      "item" -> ShareItemRoutes(restApp.backend, token)
+      "item" -> ShareItemRoutes(restApp.backend, token),
+      "clientSettings" -> ClientSettingsRoutes.share(restApp.backend, token)
     )
 
   def redirectTo[F[_]: Async](path: String): HttpRoutes[F] = {

modules/restserver/src/main/scala/docspell/restserver/routes/ClientSettingsRoutes.scala

@@ -8,10 +8,11 @@ package docspell.restserver.routes
 
 import cats.effect._
 import cats.implicits._
-import cats.kernel.Semigroup
+import cats.{Monad, Semigroup}
+import cats.data.OptionT
 
 import docspell.backend.BackendApp
-import docspell.backend.auth.AuthToken
+import docspell.backend.auth.{AuthToken, ShareToken}
 import docspell.common._
 import docspell.restapi.model._
 
@@ -23,6 +24,30 @@ import org.http4s.dsl.Http4sDsl
 
 object ClientSettingsRoutes {
 
+  def share[F[_]: Async](
+      backend: BackendApp[F],
+      token: ShareToken
+  ): HttpRoutes[F] = {
+    val logger = Logger.log4s[F](org.log4s.getLogger)
+
+    val dsl = new Http4sDsl[F] {}
+    import dsl._
+
+    HttpRoutes.of {
+      case GET -> Root / Ident(clientId) =>
+        (for {
+          _ <- OptionT.liftF(logger.debug(s"Get client settings for share ${token.id}"))
+          share <- backend.share.findActiveById(token.id)
+          merged <- OptionT.liftF(getMergedSettings(backend, share.user.accountId, clientId))
+          res <- OptionT.liftF(merged match {
+            case Some(j) => Ok(j)
+            case None    => NotFound()
+          })
+        } yield res)
+        .getOrElseF(Ok(Map.empty[String, String]))
+    }
+  }
+
   def apply[F[_]: Async](backend: BackendApp[F], user: AuthToken): HttpRoutes[F] = {
     val dsl = new Http4sDsl[F] {}
     import dsl._
@@ -30,10 +55,7 @@ object ClientSettingsRoutes {
     HttpRoutes.of {
       case GET -> Root / Ident(clientId) =>
         for {
-          collData <- backend.clientSettings.loadCollective(clientId, user.account)
-          userData <- backend.clientSettings.loadUser(clientId, user.account)
-
-          mergedData = collData.map(_.settingsData) |+| userData.map(_.settingsData)
+          mergedData <- getMergedSettings(backend, user.account, clientId)
 
           res <- mergedData match {
             case Some(j) => Ok(j)
@@ -97,6 +119,16 @@ object ClientSettingsRoutes {
     }
   }
 
+
+  def getMergedSettings[F[_]: Monad](backend:BackendApp[F], account: AccountId, clientId: Ident) =
+    for {
+      collData <- backend.clientSettings.loadCollective(clientId, account)
+      userData <- backend.clientSettings.loadUser(clientId, account)
+
+      mergedData = collData.map(_.settingsData) |+| userData.map(_.settingsData)
+    } yield mergedData
+
+
   implicit def jsonSemigroup: Semigroup[Json] =
     Semigroup.instance((a1, a2) => a1.deepMerge(a2))
 }