RSS feed from search results (Angular) (#3227)

* Port rss to 7.6 and upgrades to search functionality

* 116466: add missing imports

* 116466: fix tests and lint issues

* 116466: rss component use activated route data

* 116466: lint fixes

* 116466: More Lint fixes

---------

Co-authored-by: Nathan Buckingham <nathan.buckingham@atmire.com>

src/app/app-routes.ts

@@ -63,7 +63,7 @@ export const APP_ROUTES: Route[] = [
         path: 'home',
         loadChildren: () => import('./home-page/home-page-routes')
           .then((m) => m.ROUTES),
-        data: { showBreadcrumbs: false },
+        data: { showBreadcrumbs: false,  enableRSS: true },
         providers: [provideSuggestionNotificationsState()],
         canActivate: [endUserAgreementCurrentUserGuard],
       },
@@ -101,12 +101,14 @@ export const APP_ROUTES: Route[] = [
         path: COMMUNITY_MODULE_PATH,
         loadChildren: () => import('./community-page/community-page-routes')
           .then((m) => m.ROUTES),
+        data: { enableRSS: true },
         canActivate: [endUserAgreementCurrentUserGuard],
       },
       {
         path: COLLECTION_MODULE_PATH,
         loadChildren: () => import('./collection-page/collection-page-routes')
           .then((m) => m.ROUTES),
+        data: { showBreadcrumbs: false,  enableRSS: true },
         canActivate: [endUserAgreementCurrentUserGuard],
       },
       {
@@ -137,6 +139,7 @@ export const APP_ROUTES: Route[] = [
         path: 'mydspace',
         loadChildren: () => import('./my-dspace-page/my-dspace-page-routes')
           .then((m) => m.ROUTES),
+        data: { enableRSS: true },
         providers: [provideSuggestionNotificationsState()],
         canActivate: [authenticatedGuard, endUserAgreementCurrentUserGuard],
       },
@@ -144,6 +147,7 @@ export const APP_ROUTES: Route[] = [
         path: 'search',
         loadChildren: () => import('./search-page/search-page-routes')
           .then((m) => m.ROUTES),
+        data: { enableRSS: true },
         canActivate: [endUserAgreementCurrentUserGuard],
       },
       {
@@ -156,6 +160,7 @@ export const APP_ROUTES: Route[] = [
         path: ADMIN_MODULE_PATH,
         loadChildren: () => import('./admin/admin-routes')
           .then((m) => m.ROUTES),
+        data: { enableRSS: true },
         canActivate: [siteAdministratorGuard, endUserAgreementCurrentUserGuard],
       },
       {
@@ -200,6 +205,7 @@ export const APP_ROUTES: Route[] = [
         providers: [provideSubmissionState()],
         loadChildren: () => import('./workflowitems-edit-page/workflowitems-edit-page-routes')
           .then((m) => m.ROUTES),
+        data: { enableRSS: true },
         canActivate: [endUserAgreementCurrentUserGuard],
       },
       {

src/app/shared/rss-feed/rss.component.html

@@ -1,5 +1,9 @@
-<ng-container *ngIf="(isEnabled$ | async) && (hasRoute('home') || hasRoute('collections') || hasRoute('communities'))">
+<ng-container
+  *ngIf="(isEnabled$ | async) && (isActivated$ | async)">
   <div *ngIf="route$ | async as route" class="d-inline-block float-right margin-right">
-    <a [href]="route" class="btn btn-secondary" [title]="'feed.description' | translate" [attr.aria-label]="'feed.description' | translate"><i class="fas fa-rss-square"></i></a>
+    <a target="_blank" rel="noopener noreferrer" [href]="route" class="btn btn-secondary"
+      [title]="'feed.description' | translate" [attr.aria-label]="'feed.description' | translate">
+      <i class="fas fa-rss-square"></i>
+    </a>
   </div>
 </ng-container>

src/app/shared/rss-feed/rss.component.spec.ts

@@ -3,9 +3,17 @@ import {
   TestBed,
   waitForAsync,
 } from '@angular/core/testing';
-import { Router } from '@angular/router';
+import {
+  ActivatedRoute,
+  Router,
+} from '@angular/router';
+import { TranslateService } from '@ngx-translate/core';
 import { of as observableOf } from 'rxjs';
 
+import {
+  SortDirection,
+  SortOptions,
+} from '../../core/cache/models/sort-options.model';
 import { ConfigurationDataService } from '../../core/data/configuration-data.service';
 import { RemoteData } from '../../core/data/remote-data';
 import { GroupDataService } from '../../core/eperson/group-data.service';
@@ -14,22 +22,24 @@ import { LinkHeadService } from '../../core/services/link-head.service';
 import { Collection } from '../../core/shared/collection.model';
 import { ConfigurationProperty } from '../../core/shared/configuration-property.model';
 import { SearchConfigurationService } from '../../core/shared/search/search-configuration.service';
+import { MockActivatedRoute } from '../mocks/active-router.mock';
 import { RouterMock } from '../mocks/router.mock';
+import { getMockTranslateService } from '../mocks/translate.service.mock';
 import { PaginationComponentOptions } from '../pagination/pagination-component-options.model';
 import {
   createSuccessfulRemoteDataObject,
   createSuccessfulRemoteDataObject$,
 } from '../remote-data.utils';
 import { PaginatedSearchOptions } from '../search/models/paginated-search-options.model';
+import { SearchFilter } from '../search/models/search-filter.model';
 import { PaginationServiceStub } from '../testing/pagination-service.stub';
 import { SearchConfigurationServiceStub } from '../testing/search-configuration-service.stub';
 import { createPaginatedList } from '../testing/utils.test';
 import { RSSComponent } from './rss.component';
 
-
-
 describe('RssComponent', () => {
   let comp: RSSComponent;
+  let options: SortOptions;
   let fixture: ComponentFixture<RSSComponent>;
   let uuid: string;
   let query: string;
@@ -69,6 +79,7 @@ describe('RssComponent', () => {
         pageSize: 10,
         currentPage: 1,
       }),
+      sort: new SortOptions('dc.title', SortDirection.ASC),
     }));
     groupDataService = jasmine.createSpyObj('groupsDataService', {
       findListByHref: createSuccessfulRemoteDataObject$(createPaginatedList([])),
@@ -80,7 +91,6 @@ describe('RssComponent', () => {
       paginatedSearchOptions: mockSearchOptions,
     };
     TestBed.configureTestingModule({
-      imports: [RSSComponent],
       providers: [
         { provide: GroupDataService, useValue: groupDataService },
         { provide: LinkHeadService, useValue: linkHeadService },
@@ -88,11 +98,15 @@ describe('RssComponent', () => {
         { provide: SearchConfigurationService, useValue: new SearchConfigurationServiceStub() },
         { provide: PaginationService, useValue: paginationService },
         { provide: Router, useValue: new RouterMock() },
+        { provide: ActivatedRoute, useValue: new MockActivatedRoute },
+        { provide: TranslateService, useValue: getMockTranslateService() },
       ],
+      declarations: [],
     }).compileComponents();
   }));
 
   beforeEach(() => {
+    options = new SortOptions('dc.title', SortDirection.DESC);
     uuid = '2cfcf65e-0a51-4bcb-8592-b8db7b064790';
     query = 'test';
     fixture = TestBed.createComponent(RSSComponent);
@@ -100,18 +114,37 @@ describe('RssComponent', () => {
   });
 
   it('should formulate the correct url given params in url', () => {
-    const route = comp.formulateRoute(uuid, 'opensearch/search', query);
-    expect(route).toBe('/opensearch/search?format=atom&scope=2cfcf65e-0a51-4bcb-8592-b8db7b064790&query=test');
+    const route = comp.formulateRoute(uuid, 'opensearch/search', options, query);
+    expect(route).toBe('/opensearch/search?format=atom&scope=2cfcf65e-0a51-4bcb-8592-b8db7b064790&sort=dc.title&sort_direction=DESC&query=test');
   });
 
   it('should skip uuid if its null', () => {
-    const route = comp.formulateRoute(null, 'opensearch/search', query);
-    expect(route).toBe('/opensearch/search?format=atom&query=test');
+    const route = comp.formulateRoute(null, 'opensearch/search', options, query);
+    expect(route).toBe('/opensearch/search?format=atom&sort=dc.title&sort_direction=DESC&query=test');
   });
 
   it('should default to query * if none provided', () => {
-    const route = comp.formulateRoute(null, 'opensearch/search', null);
-    expect(route).toBe('/opensearch/search?format=atom&query=*');
+    const route = comp.formulateRoute(null, 'opensearch/search', options, null);
+    expect(route).toBe('/opensearch/search?format=atom&sort=dc.title&sort_direction=DESC&query=*');
+  });
+
+  it('should include filters in opensearch url if provided', () => {
+    const filters = [
+      new SearchFilter('f.test', ['value','another value'], 'contains'), // should be split into two arguments, spaces should be URI-encoded
+      new SearchFilter('f.range', ['[1987 TO 1988]'], 'equals'), // value should be URI-encoded, ',equals' should not
+    ];
+    const route = comp.formulateRoute(uuid, 'opensearch/search', options, query, filters);
+    expect(route).toBe('/opensearch/search?format=atom&scope=2cfcf65e-0a51-4bcb-8592-b8db7b064790&sort=dc.title&sort_direction=DESC&query=test&f.test=value,contains&f.test=another%20value,contains&f.range=%5B1987%20TO%201988%5D,equals');
+  });
+
+  it('should include configuration in opensearch url if provided', () => {
+    const route = comp.formulateRoute(uuid, 'opensearch/search', options, query, null, 'adminConfiguration');
+    expect(route).toBe('/opensearch/search?format=atom&scope=2cfcf65e-0a51-4bcb-8592-b8db7b064790&sort=dc.title&sort_direction=DESC&query=test&configuration=adminConfiguration');
+  });
+
+  it('should include rpp in opensearch url if provided', () => {
+    const route = comp.formulateRoute(uuid, 'opensearch/search', options, query, null, null, 50);
+    expect(route).toBe('/opensearch/search?format=atom&scope=2cfcf65e-0a51-4bcb-8592-b8db7b064790&sort=dc.title&sort_direction=DESC&query=test&rpp=50');
   });
 });
 

src/app/shared/rss-feed/rss.component.ts

@@ -9,11 +9,16 @@ import {
   OnInit,
   ViewEncapsulation,
 } from '@angular/core';
-import { Router } from '@angular/router';
-import { TranslateModule } from '@ngx-translate/core';
+import {
+  ActivatedRoute,
+  Router,
+} from '@angular/router';
+import {
+  TranslateModule,
+  TranslateService,
+} from '@ngx-translate/core';
 import {
   BehaviorSubject,
-  Observable,
   Subscription,
 } from 'rxjs';
 import {
@@ -21,7 +26,8 @@ import {
   switchMap,
 } from 'rxjs/operators';
 
-import { environment } from '../../../../src/environments/environment';
+import { environment } from '../../../environments/environment';
+import { SortOptions } from '../../core/cache/models/sort-options.model';
 import { ConfigurationDataService } from '../../core/data/configuration-data.service';
 import { RemoteData } from '../../core/data/remote-data';
 import { GroupDataService } from '../../core/eperson/group-data.service';
@@ -29,9 +35,12 @@ import { PaginationService } from '../../core/pagination/pagination.service';
 import { LinkHeadService } from '../../core/services/link-head.service';
 import { getFirstCompletedRemoteData } from '../../core/shared/operators';
 import { SearchConfigurationService } from '../../core/shared/search/search-configuration.service';
+import {
+  hasValue,
+  isUndefined,
+} from '../empty.util';
 import { PaginatedSearchOptions } from '../search/models/paginated-search-options.model';
-
-
+import { SearchFilter } from '../search/models/search-filter.model';
 /**
  * The Rss feed button component.
  */
@@ -51,8 +60,9 @@ export class RSSComponent implements OnInit, OnDestroy  {
 
   isEnabled$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(null);
 
+  isActivated$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+
   uuid: string;
-  configuration$: Observable<string>;
 
   subs: Subscription[] = [];
 
@@ -61,7 +71,9 @@ export class RSSComponent implements OnInit, OnDestroy  {
               private configurationService: ConfigurationDataService,
               private searchConfigurationService: SearchConfigurationService,
               private router: Router,
-              protected paginationService: PaginationService) {
+              private route: ActivatedRoute,
+              protected paginationService: PaginationService,
+              protected translateService: TranslateService) {
   }
   /**
    * Removes the linktag created when the component gets removed from the page.
@@ -78,8 +90,11 @@ export class RSSComponent implements OnInit, OnDestroy  {
    * Generates the link tags and the url to opensearch when the component is loaded.
    */
   ngOnInit(): void {
-    this.configuration$ = this.searchConfigurationService.getCurrentConfiguration('default');
-
+    if (hasValue(this.route.snapshot.data?.enableRSS)) {
+      this.isActivated$.next(this.route.snapshot.data.enableRSS);
+    } else if (isUndefined(this.route.snapshot.data?.enableRSS)) {
+      this.isActivated$.next(false);
+    }
     this.subs.push(this.configurationService.findByPropertyName('websvc.opensearch.enable').pipe(
       getFirstCompletedRemoteData(),
     ).subscribe((result) => {
@@ -106,7 +121,7 @@ export class RSSComponent implements OnInit, OnDestroy  {
         return null;
       }
       this.uuid = this.groupDataService.getUUIDFromString(this.router.url);
-      const route = environment.rest.baseUrl + this.formulateRoute(this.uuid, openSearchUri, searchOptions.query);
+      const route = environment.rest.baseUrl + this.formulateRoute(this.uuid, openSearchUri, searchOptions.sort, searchOptions.query, searchOptions.filters, searchOptions.configuration, searchOptions.pagination?.pageSize, searchOptions.fixedFilter);
       this.addLinks(route);
       this.linkHeadService.addTag({
         href: environment.rest.baseUrl + '/' + openSearchUri + '/service',
@@ -122,20 +137,40 @@ export class RSSComponent implements OnInit, OnDestroy  {
    * Function created a route given the different params available to opensearch
    * @param uuid The uuid if a scope is present
    * @param opensearch openSearch uri
+   * @param sort The sort options for the opensearch request
    * @param query The query string that was provided in the search
    * @returns The combine URL to opensearch
    */
-  formulateRoute(uuid: string, opensearch: string, query: string): string {
-    let route = '?format=atom';
+  formulateRoute(uuid: string, opensearch: string, sort?: SortOptions, query?: string, searchFilters?: SearchFilter[], configuration?: string, pageSize?: number, fixedFilter?: string): string {
+    let route = 'format=atom';
     if (uuid) {
       route += `&scope=${uuid}`;
     }
+    if (sort && sort.direction && sort.field && sort.field !== 'id') {
+      route += `&sort=${sort.field}&sort_direction=${sort.direction}`;
+    }
     if (query) {
       route += `&query=${query}`;
     } else {
       route += `&query=*`;
     }
-    route = '/' + opensearch + route;
+    if (configuration) {
+      route += `&configuration=${configuration}`;
+    }
+    if (pageSize) {
+      route += `&rpp=${pageSize}`;
+    }
+    if (searchFilters) {
+      for (const filter of searchFilters) {
+        for (const val of filter.values) {
+          route += '&' + filter.key + '=' + encodeURIComponent(val) + (filter.operator ? ',' + filter.operator : '');
+        }
+      }
+    }
+    if (fixedFilter) {
+      route += '&' + fixedFilter;
+    }
+    route = '/' + opensearch + '?' + route;
     return route;
   }
 
@@ -169,4 +204,5 @@ export class RSSComponent implements OnInit, OnDestroy  {
       title: 'Sitewide RSS feed',
     });
   }
+
 }