Non-admin user with no READ permission for a bitstream, doesn't see any response when "Download file" button is clicked

[kuchtiak-ufal]

As a submitter I've setup an Embargo for my item file (bitstream) until some date.

I am not able to download this file before that date, which is OK. But, I'd expect to see some information message that file is temporarily not available for download. The same for other non-admin user.

Instead, nothing is shown in Clarin-DSpace UI, only I can see some 403/401 messages in my Chrome devtools Network monitor:

Error messages are:

GET server/api/core/bitstreams/b4fe4c99-9874-4b21-ba8f-13e7671dcb3e/bundle?embed=primaryBitstream&embed=item
{
    "timestamp": "2025-07-29T07:44:14.778+00:00",
    "status": 403,
    "error": "Forbidden",
    "message": "Access is denied",
    "path": "/server/api/core/bitstreams/b4fe4c99-9874-4b21-ba8f-13e7671dcb3e/bundle"
}

and

GET server/api/authrn/b4fe4c99-9874-4b21-ba8f-13e7671dcb3e
{
    "timestamp": "2025-07-29T07:44:14.781+00:00",
    "status": 401,
    "error": "Unauthorized",
    "message": "Authorization denied for action READ on BITSTREAM:b4fe4c99-9874-4b21-ba8f-13e7671dcb3e by user d6d42691-1cdb-4780-88b0-193bfcec347e",
    "path": "/server/api/authrn/b4fe4c99-9874-4b21-ba8f-13e7671dcb3e"
}

[kuchtiak-ufal]

This is partially related to https://github.com/ufal/clarin-dspace/issues/1172

[kuchtiak-ufal]

This is quite generic issue: When user has no READ permission for a bitstream, there's no any message shown in UI when user clicks "Download file" button.

Only the following error is visible in Network monitor:

GET server/api/authrn/b4fe4c99-9874-4b21-ba8f-13e7671dcb3e
{
    "timestamp": "2025-07-29T07:44:14.781+00:00",
    "status": 401,
    "error": "Unauthorized",
    "message": "Authorization denied for action READ on BITSTREAM:b4fe4c99-9874-4b21-ba8f-13e7671dcb3e by user d6d42691-1cdb-4780-88b0-193bfcec347e",
    "path": "/server/api/authrn/b4fe4c99-9874-4b21-ba8f-13e7671dcb3e"
}

I think, this is a bug. User has no idea why file cannot be downloaded.

This should be fixed in UI.

[kuchtiak-ufal]

Pull Request: https://github.com/ufal/dspace-angular/pull/42/

[kuchtiak-ufal]

Now, after the fix, the following message is shown for user with no download access: