fix: remove documents provider permissions for shared files

Author: joragua

owncloudApp/src/main/java/com/owncloud/android/presentation/documentsprovider/cursors/FileCursor.kt

@@ -4,9 +4,10 @@
  * @author Bartosz Przybylski
  * @author Abel García de Prada
  * @author Juan Carlos Garrote Gascón
+ * @author Jorge Aguado Recio
  *
  * Copyright (C) 2015  Bartosz Przybylski
- * Copyright (C) 2023 ownCloud GmbH.
+ * Copyright (C) 2025 ownCloud GmbH.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2,
@@ -28,6 +29,7 @@ import android.os.Bundle
 import android.provider.DocumentsContract
 import android.provider.DocumentsContract.Document
 import com.owncloud.android.domain.files.model.OCFile
+import com.owncloud.android.domain.spaces.model.OCSpace.Companion.SPACE_ID_SHARES
 import com.owncloud.android.utils.MimetypeIconUtil
 
 class FileCursor(projection: Array<String>?) : MatrixCursor(projection ?: DEFAULT_DOCUMENT_PROJECTION) {
@@ -45,15 +47,17 @@ class FileCursor(projection: Array<String>?) : MatrixCursor(projection ?: DEFAUL
         val imagePath = if (file.isImage && file.isAvailableLocally) file.storagePath else null
         var flags = if (imagePath != null) Document.FLAG_SUPPORTS_THUMBNAIL else 0
 
-        flags = flags or Document.FLAG_SUPPORTS_DELETE
-        flags = flags or Document.FLAG_SUPPORTS_RENAME
-        flags = flags or Document.FLAG_SUPPORTS_COPY
-        flags = flags or Document.FLAG_SUPPORTS_MOVE
+        if (file.spaceId != SPACE_ID_SHARES) {
+            flags = flags or Document.FLAG_SUPPORTS_DELETE
+            flags = flags or Document.FLAG_SUPPORTS_RENAME
+            flags = flags or Document.FLAG_SUPPORTS_COPY
+            flags = flags or Document.FLAG_SUPPORTS_MOVE
 
-        if (mimeType != Document.MIME_TYPE_DIR) { // If it is a file
-            flags = flags or Document.FLAG_SUPPORTS_WRITE
-        } else if (file.hasAddFilePermission && file.hasAddSubdirectoriesPermission) { // If it is a folder with writing permissions
-            flags = flags or Document.FLAG_DIR_SUPPORTS_CREATE
+            if (mimeType != Document.MIME_TYPE_DIR) { // If it is a file
+                flags = flags or Document.FLAG_SUPPORTS_WRITE
+            } else if (file.hasAddFilePermission && file.hasAddSubdirectoriesPermission) { // If it is a folder with writing permissions
+                flags = flags or Document.FLAG_DIR_SUPPORTS_CREATE
+            }
         }
 
         newRow()