FileDownloadLinkComponent does not consider current value of configuration key request.item.type

[saschaszott]

DS and DS CRIS allow to disable the request-a-copy feature by setting request.item.type to an empty value (see https://github.com/4Science/DSpace/blob/0c4ee1a65dca7b0bc3382c1a6a642ac94a0a4fba/dspace/config/dspace.cfg#L1674 for details).

Currently, this configuration setting is not propagated from the backend to the frontend.

The current implementation in FileDownloadButtonComponent does not consider the status of request.item.type. The template (src/app/shared/file-download-button/file-download-button.component.html)renders a Request a copy button if the user cannot access the bitstream at hand.

To fix this bug a conditional check is required in

dspace-angular/src/app/cris-layout/cris-layout-matrix/cris-layout-box-container/boxes/metadata/rendering-types/advanced-attachment/bitstream-attachment/attachment-render/types/file-download-button/file-download-button.component.html

Line 10 in 99eeea9

<ng-container *ngIf="!(canDownload$ | async)">

.