Merge pull request #3475 from abpframework/feat/insertion

Created DomInsertionService

npm/ng-packs/packages/core/src/lib/services/dom-insertion.service.ts

@@ -0,0 +1,17 @@
+import { Injectable } from '@angular/core';
+import { ContentStrategy } from '../strategies/content.strategy';
+import { generateHash } from '../utils';
+
+@Injectable({ providedIn: 'root' })
+export class DomInsertionService {
+  readonly inserted = new Set();
+
+  insertContent(contentStrategy: ContentStrategy) {
+    const hash = generateHash(contentStrategy.content);
+
+    if (this.inserted.has(hash)) return;
+
+    contentStrategy.insertElement();
+    this.inserted.add(hash);
+  }
+}

npm/ng-packs/packages/core/src/lib/services/index.ts

@@ -1,6 +1,7 @@
 export * from './application-configuration.service';
 export * from './auth.service';
 export * from './config-state.service';
+export * from './dom-insertion.service';
 export * from './lazy-load.service';
 export * from './localization.service';
 export * from './profile-state.service';

npm/ng-packs/packages/core/src/lib/services/lazy-load.service.ts

@@ -13,6 +13,10 @@ export class LazyLoadService {
   loadedLibraries: { [url: string]: ReplaySubject<void> } = {};
 
   load(strategy: LoadingStrategy, retryTimes?: number, retryDelay?: number): Observable<Event>;
+  /**
+   *
+   * @deprecated Use other overload that requires a strategy as first param
+   */
   load(
     urlOrUrls: string | string[],
     type: 'script' | 'style',

npm/ng-packs/packages/core/src/lib/strategies/content-security.strategy.ts

@@ -14,7 +14,7 @@ export class LooseContentSecurityStrategy extends ContentSecurityStrategy {
   }
 }
 
-export class StrictContentSecurityStrategy extends ContentSecurityStrategy {
+export class NoContentSecurityStrategy extends ContentSecurityStrategy {
   constructor() {
     super();
   }
@@ -26,7 +26,7 @@ export const CONTENT_SECURITY_STRATEGY = {
   Loose(nonce: string) {
     return new LooseContentSecurityStrategy(nonce);
   },
-  Strict() {
-    return new StrictContentSecurityStrategy();
+  None() {
+    return new NoContentSecurityStrategy();
   },
 };

npm/ng-packs/packages/core/src/lib/strategies/content.strategy.ts

@@ -0,0 +1,52 @@
+import { ContentSecurityStrategy, CONTENT_SECURITY_STRATEGY } from './content-security.strategy';
+import { DomStrategy, DOM_STRATEGY } from './dom.strategy';
+
+export abstract class ContentStrategy<T extends HTMLScriptElement | HTMLStyleElement = any> {
+  constructor(
+    public content: string,
+    protected domStrategy: DomStrategy = DOM_STRATEGY.AppendToHead(),
+    protected contentSecurityStrategy: ContentSecurityStrategy = CONTENT_SECURITY_STRATEGY.None(),
+  ) {}
+
+  abstract createElement(): T;
+
+  insertElement() {
+    const element = this.createElement();
+
+    this.contentSecurityStrategy.applyCSP(element);
+    this.domStrategy.insertElement(element);
+  }
+}
+
+export class StyleContentStrategy extends ContentStrategy<HTMLStyleElement> {
+  createElement(): HTMLStyleElement {
+    const element = document.createElement('style');
+    element.textContent = this.content;
+
+    return element;
+  }
+}
+
+export class ScriptContentStrategy extends ContentStrategy<HTMLScriptElement> {
+  createElement(): HTMLScriptElement {
+    const element = document.createElement('script');
+    element.textContent = this.content;
+
+    return element;
+  }
+}
+
+export const CONTENT_STRATEGY = {
+  AppendScriptToBody(content: string) {
+    return new ScriptContentStrategy(content, DOM_STRATEGY.AppendToBody());
+  },
+  AppendScriptToHead(content: string) {
+    return new ScriptContentStrategy(content, DOM_STRATEGY.AppendToHead());
+  },
+  AppendStyleToHead(content: string) {
+    return new StyleContentStrategy(content, DOM_STRATEGY.AppendToHead());
+  },
+  PrependStyleToHead(content: string) {
+    return new StyleContentStrategy(content, DOM_STRATEGY.PrependToHead());
+  },
+};

npm/ng-packs/packages/core/src/lib/strategies/index.ts

@@ -1,4 +1,5 @@
 export * from './content-security.strategy';
+export * from './content.strategy';
 export * from './cross-origin.strategy';
 export * from './dom.strategy';
 export * from './loading.strategy';

npm/ng-packs/packages/core/src/lib/tests/content-security.strategy.spec.ts

@@ -1,7 +1,7 @@
 import {
   CONTENT_SECURITY_STRATEGY,
   LooseContentSecurityStrategy,
-  StrictContentSecurityStrategy,
+  NoContentSecurityStrategy,
 } from '../strategies';
 import { uuid } from '../utils';
 
@@ -18,10 +18,10 @@ describe('LooseContentSecurityStrategy', () => {
   });
 });
 
-describe('StrictContentSecurityStrategy', () => {
+describe('NoContentSecurityStrategy', () => {
   describe('#applyCSP', () => {
     it('should not set nonce attribute', () => {
-      const strategy = new StrictContentSecurityStrategy();
+      const strategy = new NoContentSecurityStrategy();
       const element = document.createElement('link');
       strategy.applyCSP(element);
 
@@ -32,9 +32,9 @@ describe('StrictContentSecurityStrategy', () => {
 
 describe('CONTENT_SECURITY_STRATEGY', () => {
   test.each`
-    name        | Strategy                         | nonce
-    ${'Loose'}  | ${LooseContentSecurityStrategy}  | ${uuid()}
-    ${'Strict'} | ${StrictContentSecurityStrategy} | ${undefined}
+    name       | Strategy                        | nonce
+    ${'Loose'} | ${LooseContentSecurityStrategy} | ${uuid()}
+    ${'None'}  | ${NoContentSecurityStrategy}    | ${undefined}
   `('should successfully map $name to $Strategy.name', ({ name, Strategy, nonce }) => {
     expect(CONTENT_SECURITY_STRATEGY[name](nonce)).toEqual(new Strategy(nonce));
   });

npm/ng-packs/packages/core/src/lib/tests/content.strategy.spec.ts

@@ -0,0 +1,82 @@
+import {
+  CONTENT_STRATEGY,
+  StyleContentStrategy,
+  ScriptContentStrategy,
+  DOM_STRATEGY,
+  CONTENT_SECURITY_STRATEGY,
+} from '../strategies';
+import { uuid } from '../utils';
+
+describe('StyleContentStrategy', () => {
+  describe('#createElement', () => {
+    it('should create a style element', () => {
+      const strategy = new StyleContentStrategy('');
+      const element = strategy.createElement();
+
+      expect(element.tagName).toBe('STYLE');
+    });
+  });
+
+  describe('#insertElement', () => {
+    it('should use given dom and content security strategies', () => {
+      const domStrategy = DOM_STRATEGY.PrependToHead();
+      const contentSecurityStrategy = CONTENT_SECURITY_STRATEGY.None();
+
+      contentSecurityStrategy.applyCSP = jest.fn((el: HTMLScriptElement) => {});
+      domStrategy.insertElement = jest.fn((el: HTMLScriptElement) => {}) as any;
+
+      const strategy = new StyleContentStrategy('', domStrategy, contentSecurityStrategy);
+      const element = strategy.createElement();
+      strategy.insertElement();
+
+      expect(contentSecurityStrategy.applyCSP).toHaveBeenCalledWith(element);
+      expect(domStrategy.insertElement).toHaveBeenCalledWith(element);
+    });
+  });
+});
+
+describe('ScriptContentStrategy', () => {
+  describe('#createElement', () => {
+    it('should create a style element', () => {
+      const nonce = uuid();
+      const strategy = new ScriptContentStrategy('');
+      const element = strategy.createElement();
+
+      expect(element.tagName).toBe('SCRIPT');
+    });
+  });
+
+  describe('#insertElement', () => {
+    it('should use given dom and content security strategies', () => {
+      const nonce = uuid();
+
+      const domStrategy = DOM_STRATEGY.PrependToHead();
+      const contentSecurityStrategy = CONTENT_SECURITY_STRATEGY.Loose(nonce);
+
+      contentSecurityStrategy.applyCSP = jest.fn((el: HTMLScriptElement) => {});
+      domStrategy.insertElement = jest.fn((el: HTMLScriptElement) => {}) as any;
+
+      const strategy = new ScriptContentStrategy('', domStrategy, contentSecurityStrategy);
+      const element = strategy.createElement();
+      strategy.insertElement();
+
+      expect(contentSecurityStrategy.applyCSP).toHaveBeenCalledWith(element);
+      expect(domStrategy.insertElement).toHaveBeenCalledWith(element);
+    });
+  });
+});
+
+describe('CONTENT_STRATEGY', () => {
+  test.each`
+    name                    | Strategy                 | domStrategy
+    ${'AppendScriptToBody'} | ${ScriptContentStrategy} | ${'AppendToBody'}
+    ${'AppendScriptToHead'} | ${ScriptContentStrategy} | ${'AppendToHead'}
+    ${'AppendStyleToHead'}  | ${StyleContentStrategy}  | ${'AppendToHead'}
+    ${'PrependStyleToHead'} | ${StyleContentStrategy}  | ${'PrependToHead'}
+  `(
+    'should successfully map $name to $Strategy.name with $domStrategy dom strategy',
+    ({ name, Strategy, domStrategy }) => {
+      expect(CONTENT_STRATEGY[name]('')).toEqual(new Strategy('', DOM_STRATEGY[domStrategy]()));
+    },
+  );
+});

npm/ng-packs/packages/core/src/lib/tests/dom-insertion.service.spec.ts

@@ -0,0 +1,15 @@
+import { createServiceFactory, SpectatorService } from '@ngneat/spectator';
+import { DomInsertionService } from '../services';
+import { CONTENT_STRATEGY } from '../strategies';
+
+describe('DomInsertionService', () => {
+  let spectator: SpectatorService<DomInsertionService>;
+  const createService = createServiceFactory(DomInsertionService);
+
+  beforeEach(() => (spectator = createService()));
+
+  it('should be insert an element', () => {
+    spectator.service.insertContent(CONTENT_STRATEGY.AppendStyleToHead('.test {}'));
+    expect(spectator.service.inserted.has(1437348290)).toBe(true);
+  });
+});

npm/ng-packs/packages/core/src/lib/tests/generator-utils.spec.ts

@@ -0,0 +1,10 @@
+import { generateHash } from '../utils';
+
+describe('GeneratorUtils', () => {
+  describe('#generateHash', () => {
+    test('should generate a hash', async () => {
+      const hash = generateHash('some content \n with second line');
+      expect(hash).toBe(1112440527);
+    });
+  });
+});

npm/ng-packs/packages/core/src/lib/utils/generator-utils.ts

@@ -1,6 +1,19 @@
+// tslint:disable: no-bitwise
+
 export function uuid(a?: any): string {
   return a
-    ? // tslint:disable-next-line: no-bitwise
-      (a ^ ((Math.random() * 16) >> (a / 4))).toString(16)
+    ? (a ^ ((Math.random() * 16) >> (a / 4))).toString(16)
     : ('' + 1e7 + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, uuid);
 }
+
+export function generateHash(value: string): number {
+  let hashed = 0;
+  let charCode: number;
+
+  for (let i = 0; i < value.length; i++) {
+    charCode = value.charCodeAt(i);
+    hashed = (hashed << 5) - hashed + charCode;
+    hashed |= 0;
+  }
+  return hashed;
+}

npm/ng-packs/packages/theme-basic/src/lib/services/initial.service.ts

@@ -1,4 +1,4 @@
-import { LazyLoadService, AddReplaceableComponent } from '@abp/ng.core';
+import { DomInsertionService, AddReplaceableComponent, CONTENT_STRATEGY } from '@abp/ng.core';
 import { Injectable } from '@angular/core';
 import { Store } from '@ngxs/store';
 import styles from '../constants/styles';
@@ -8,8 +8,9 @@ import { EmptyLayoutComponent } from '../components/empty-layout/empty-layout.co
 
 @Injectable({ providedIn: 'root' })
 export class InitialService {
-  constructor(private lazyLoadService: LazyLoadService, private store: Store) {
-    this.appendStyle().subscribe();
+  constructor(private domInsertion: DomInsertionService, private store: Store) {
+    this.appendStyle();
+
     this.store.dispatch([
       new AddReplaceableComponent({
         key: 'Theme.ApplicationLayoutComponent',
@@ -27,6 +28,6 @@ export class InitialService {
   }
 
   appendStyle() {
-    return this.lazyLoadService.load(null, 'style', styles, 'head', 'beforeend');
+    this.domInsertion.insertContent(CONTENT_STRATEGY.AppendStyleToHead(styles));
   }
 }

npm/ng-packs/packages/theme-shared/src/lib/tests/append-content.token.spec.ts

@@ -0,0 +1,29 @@
+import { Component } from '@angular/core';
+import { createComponentFactory, Spectator } from '@ngneat/spectator';
+import { THEME_SHARED_APPEND_CONTENT } from '../tokens/append-content.token';
+import { DomInsertionService } from '@abp/ng.core';
+import { chartJsLoaded$ } from '../utils';
+
+@Component({ selector: 'abp-dummy', template: '' })
+class DummyComponent {}
+
+describe('AppendContentToken', () => {
+  let spectator: Spectator<DummyComponent>;
+  const createComponent = createComponentFactory(DummyComponent);
+
+  beforeEach(() => (spectator = createComponent()));
+
+  it('should insert a style element to the DOM', () => {
+    spectator.get(THEME_SHARED_APPEND_CONTENT);
+    expect(spectator.get(DomInsertionService).inserted.size).toBe(1);
+  });
+
+  it('should be loaded the chart.js', done => {
+    chartJsLoaded$.subscribe(loaded => {
+      expect(loaded).toBe(true);
+      done();
+    });
+
+    spectator.get(THEME_SHARED_APPEND_CONTENT);
+  });
+});

npm/ng-packs/packages/theme-shared/src/lib/theme-shared.module.ts

@@ -1,4 +1,4 @@
-import { CoreModule, LazyLoadService } from '@abp/ng.core';
+import { CoreModule, noop, LazyLoadService } from '@abp/ng.core';
 import { DatePipe } from '@angular/common';
 import { APP_INITIALIZER, Injector, ModuleWithProviders, NgModule } from '@angular/core';
 import { NgbDateParserFormatter, NgbPaginationModule } from '@ng-bootstrap/ng-bootstrap';
@@ -25,7 +25,13 @@ import { chartJsLoaded$ } from './utils/widget-utils';
 import { PaginationComponent } from './components/pagination/pagination.component';
 import { LoadingComponent } from './components/loading/loading.component';
 import { LoadingDirective } from './directives/loading.directive';
+import { THEME_SHARED_APPEND_CONTENT } from './tokens/append-content.token';
 
+/**
+ *
+ * @deprecated To be deleted in v2.6
+ *
+ */
 export function appendScript(injector: Injector) {
   const fn = () => {
     import('chart.js').then(() => chartJsLoaded$.next(true));
@@ -87,8 +93,8 @@ export class ThemeSharedModule {
         {
           provide: APP_INITIALIZER,
           multi: true,
-          deps: [Injector],
-          useFactory: appendScript,
+          deps: [THEME_SHARED_APPEND_CONTENT],
+          useFactory: noop,
         },
         { provide: HTTP_ERROR_CONFIG, useValue: options.httpErrorConfig },
         {

npm/ng-packs/packages/theme-shared/src/lib/tokens/append-content.token.ts

@@ -0,0 +1,15 @@
+import { CONTENT_STRATEGY, DomInsertionService } from '@abp/ng.core';
+import { inject, InjectionToken } from '@angular/core';
+import styles from '../constants/styles';
+import { chartJsLoaded$ } from '../utils/widget-utils';
+
+export const THEME_SHARED_APPEND_CONTENT = new InjectionToken<void>('THEME_SHARED_APPEND_CONTENT', {
+  providedIn: 'root',
+  factory: () => {
+    const domInsertion: DomInsertionService = inject(DomInsertionService);
+
+    domInsertion.insertContent(CONTENT_STRATEGY.AppendStyleToHead(styles));
+
+    import('chart.js').then(() => chartJsLoaded$.next(true));
+  },
+});