fix(files_sharing): Normalize dir type to folder for federated shares

The backend returns type 'dir' for folders (from FileInfo::TYPE_FOLDER),
but the frontend expects 'folder'. This mismatch caused federated shared
folders to display incorrectly as files in the "Shared with you" view.

Signed-off-by: nfebe <fenn25.fn@gmail.com>

apps/files_sharing/src/services/SharingService.spec.ts

@@ -313,6 +313,25 @@ describe('SharingService share to Node mapping', () => {
 		accepted: false,
 	}
 
+	const remoteFolderAccepted = {
+		mimetype: 'httpd/unix-directory',
+		mtime: 1688721600,
+		permissions: 31,
+		type: 'dir',
+		file_id: 5678,
+		id: 5,
+		share_type: ShareType.User,
+		parent: null,
+		remote: 'http://example.com',
+		remote_id: '12346',
+		share_token: 'share-token-folder',
+		name: '/testfolder',
+		mountpoint: '/shares/testfolder',
+		owner: 'owner-uid',
+		user: 'sharee-uid',
+		accepted: true,
+	}
+
 	const tempExternalFile = {
 		id: 65,
 		share_type: 0,
@@ -457,6 +476,36 @@ describe('SharingService share to Node mapping', () => {
 		})
 	})
 
+	describe('Remote folder', () => {
+		test('Accepted with type dir', async () => {
+			axios.get.mockReturnValueOnce(Promise.resolve({
+				data: {
+					ocs: {
+						data: [remoteFolderAccepted],
+					},
+				},
+			}))
+
+			const shares = await getContents(false, true, false, false)
+
+			expect(axios.get).toHaveBeenCalledTimes(1)
+			expect(shares.contents).toHaveLength(1)
+
+			const folder = shares.contents[0] as Folder
+			expect(folder).toBeInstanceOf(Folder)
+			expect(folder.fileid).toBe(5678)
+			expect(folder.source).toBe('http://nextcloud.local/remote.php/dav/files/test/shares/testfolder')
+			expect(folder.owner).toBe('owner-uid')
+			expect(folder.mime).toBe('httpd/unix-directory')
+			expect(folder.mtime?.getTime()).toBe(remoteFolderAccepted.mtime * 1000)
+			expect(folder.size).toBe(undefined)
+			expect(folder.permissions).toBe(31)
+			expect(folder.root).toBe('/files/test')
+			expect(folder.attributes).toBeInstanceOf(Object)
+			expect(folder.attributes.favorite).toBe(0)
+		})
+	})
+
 	test('External temp file', async () => {
 		axios.get.mockReturnValueOnce(Promise.resolve({
 			data: {

apps/files_sharing/src/services/SharingService.ts

@@ -33,7 +33,8 @@ async function ocsEntryToNode(ocsEntry: any): Promise<Folder | File | null> {
 				// This won't catch files without an extension, but this is the best we can do
 				ocsEntry.mimetype = mime.getType(ocsEntry.name)
 			}
-			ocsEntry.item_type = ocsEntry.type || (ocsEntry.mimetype ? 'file' : 'folder')
+			const type = ocsEntry.type === 'dir' ? 'folder' : ocsEntry.type
+			ocsEntry.item_type = type || (ocsEntry.mimetype ? 'file' : 'folder')
 
 			// different naming for remote shares
 			ocsEntry.item_mtime = ocsEntry.mtime