Update metadataservice citation tag to refer to new download page

src/app/app-routing-paths.ts

@@ -6,6 +6,7 @@ import { getCommunityPageRoute } from './+community-page/community-page-routing-
 import { getCollectionPageRoute } from './+collection-page/collection-page-routing-paths';
 import { getItemPageRoute } from './+item-page/item-page-routing-paths';
 import { hasValue } from './shared/empty.util';
+import { URLCombiner } from './core/url-combiner/url-combiner';
 
 export const BITSTREAM_MODULE_PATH = 'bitstreams';
 
@@ -13,6 +14,10 @@ export function getBitstreamModuleRoute() {
   return `/${BITSTREAM_MODULE_PATH}`;
 }
 
+export function getBitstreamDownloadRoute(bitstream) : string{
+  return new URLCombiner(getBitstreamModuleRoute(), bitstream.uuid, 'download').toString();
+}
+
 export const ADMIN_MODULE_PATH = 'admin';
 
 export function getAdminModuleRoute() {

src/app/core/metadata/metadata.service.spec.ts

@@ -222,7 +222,7 @@ describe('MetadataService', () => {
     expect(tagStore.get('citation_dissertation_name')[0].content).toEqual('Test PowerPoint Document');
     expect(tagStore.get('citation_dissertation_institution')[0].content).toEqual('Mock Publisher');
     expect(tagStore.get('citation_abstract_html_url')[0].content).toEqual([environment.ui.baseUrl, router.url].join(''));
-    expect(tagStore.get('citation_pdf_url')[0].content).toEqual('https://dspace7.4science.it/dspace-spring-rest/api/core/bitstreams/99b00f3c-1cc6-4689-8158-91965bee6b28/content');
+    expect(tagStore.get('citation_pdf_url')[0].content).toEqual('/bitstreams/99b00f3c-1cc6-4689-8158-91965bee6b28/download');
   }));
 
   it('items page should set meta tags as published Technical Report', fakeAsync(() => {

src/app/core/metadata/metadata.service.ts

@@ -22,6 +22,8 @@ import { Item } from '../shared/item.model';
 import { getFirstSucceededRemoteDataPayload, getFirstSucceededRemoteListPayload } from '../shared/operators';
 import { environment } from '../../../environments/environment';
 import { RootDataService } from '../data/root-data.service';
+import { URLCombiner } from '../url-combiner/url-combiner';
+import { getBitstreamDownloadRoute, getBitstreamModuleRoute } from '../../app-routing-paths';
 
 @Injectable()
 export class MetadataService {
@@ -40,7 +42,6 @@ export class MetadataService {
     private dsoNameService: DSONameService,
     private bitstreamDataService: BitstreamDataService,
     private bitstreamFormatDataService: BitstreamFormatDataService,
-    private redirectService: HardRedirectService,
     private rootService: RootDataService
   ) {
     // TODO: determine what open graph meta tags are needed and whether
@@ -286,7 +287,8 @@ export class MetadataService {
               getFirstSucceededRemoteDataPayload()
             ).subscribe((format: BitstreamFormat) => {
               if (format.mimetype === 'application/pdf') {
-                this.addMetaTag('citation_pdf_url', bitstream._links.content.href);
+                const bitstreamLink =  getBitstreamDownloadRoute(bitstream);
+                this.addMetaTag('citation_pdf_url', bitstreamLink);
               }
             });
           }

src/app/shared/file-download-link/file-download-link.component.ts

@@ -1,10 +1,6 @@
 import { Component, Input, OnInit } from '@angular/core';
-import { FileService } from '../../core/shared/file.service';
-import { Observable } from 'rxjs';
-import { AuthService } from '../../core/auth/auth.service';
 import { Bitstream } from '../../core/shared/bitstream.model';
-import { getBitstreamModuleRoute } from '../../app-routing-paths';
+import { getBitstreamDownloadRoute } from '../../app-routing-paths';
-import { URLCombiner } from '../../core/url-combiner/url-combiner';
 
 @Component({
   selector: 'ds-file-download-link',
@@ -24,22 +20,11 @@ export class FileDownloadLinkComponent implements OnInit {
   @Input() bitstream: Bitstream;
   bitstreamPath: string;
 
-  /**
-   * Whether or not the current user is authenticated
-   */
-  isAuthenticated$: Observable<boolean>;
-
-  constructor(private fileService: FileService,
-              private authService: AuthService,
-  ) {
-  }
-
   ngOnInit() {
-    this.isAuthenticated$ = this.authService.isAuthenticated();
     this.bitstreamPath = this.getBitstreamPath();
   }
 
   getBitstreamPath() {
-    return new URLCombiner(getBitstreamModuleRoute(), this.bitstream.uuid, 'download').toString();
+    return getBitstreamDownloadRoute(this.bitstream);
   }
 }