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Merge pull request #918 from capricorn86/task/849-disablejavascriptfi…
…leloading-and-script-events #849@minor: Adds support for triggering an error event when attemptin…
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82 changes: 82 additions & 0 deletions
82
packages/happy-dom/src/nodes/html-link-element/HTMLLinkElementUtility.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| import Document from '../document/Document'; | ||
| import Event from '../../event/Event'; | ||
| import ErrorEvent from '../../event/events/ErrorEvent'; | ||
| import ResourceFetch from '../../fetch/ResourceFetch'; | ||
| import HTMLLinkElement from './HTMLLinkElement'; | ||
| import CSSStyleSheet from '../../css/CSSStyleSheet'; | ||
| import DOMException from '../../exception/DOMException'; | ||
| import DOMExceptionNameEnum from '../../exception/DOMExceptionNameEnum'; | ||
|
|
||
| /** | ||
| * Helper class for getting the URL relative to a Location object. | ||
| */ | ||
| export default class HTMLLinkElementUtility { | ||
| /** | ||
| * Returns a URL relative to the given Location object. | ||
| * | ||
| * @param options Options. | ||
| * @param options.element Element. | ||
| * @param element | ||
| */ | ||
| public static async loadExternalStylesheet(element: HTMLLinkElement): Promise<void> { | ||
| const href = element.getAttribute('href'); | ||
| const rel = element.getAttribute('rel'); | ||
|
|
||
| if (href !== null && rel && rel.toLowerCase() === 'stylesheet' && element.isConnected) { | ||
| if (element.ownerDocument.defaultView.happyDOM.settings.disableCSSFileLoading) { | ||
| this.onError( | ||
| element, | ||
| new DOMException( | ||
| `Failed to load external stylesheet "${href}". CSS file loading is disabled.`, | ||
| DOMExceptionNameEnum.notSupportedError | ||
| ) | ||
| ); | ||
| return; | ||
| } | ||
|
|
||
| (<Document>element.ownerDocument)._readyStateManager.startTask(); | ||
|
|
||
| let code: string; | ||
| try { | ||
| code = await ResourceFetch.fetch(element.ownerDocument, href); | ||
| } catch (error) { | ||
| this.onError(element, error); | ||
| return; | ||
| } | ||
|
|
||
| const styleSheet = new CSSStyleSheet(); | ||
| styleSheet.replaceSync(code); | ||
| (<CSSStyleSheet>element.sheet) = styleSheet; | ||
| element.dispatchEvent(new Event('load')); | ||
| (<Document>element.ownerDocument)._readyStateManager.endTask(); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Triggered when an error occurs. | ||
| * | ||
| * @param element Element. | ||
| * @param error Error. | ||
| */ | ||
| private static onError(element: HTMLLinkElement, error: Error): void { | ||
| element.dispatchEvent( | ||
| new ErrorEvent('error', { | ||
| message: error.message, | ||
| error | ||
| }) | ||
| ); | ||
| element.ownerDocument.defaultView.dispatchEvent( | ||
| new ErrorEvent('error', { | ||
| message: error.message, | ||
| error | ||
| }) | ||
| ); | ||
| (<Document>element.ownerDocument)._readyStateManager.endTask(); | ||
| if ( | ||
| !element['_listeners']['error'] && | ||
| !element.ownerDocument.defaultView['_listeners']['error'] | ||
| ) { | ||
| element.ownerDocument.defaultView.console.error(error); | ||
| } | ||
| } | ||
| } |
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94 changes: 94 additions & 0 deletions
94
packages/happy-dom/src/nodes/html-script-element/HTMLScriptElementUtility.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| import Document from '../document/Document'; | ||
| import Event from '../../event/Event'; | ||
| import ErrorEvent from '../../event/events/ErrorEvent'; | ||
| import DOMException from '../../exception/DOMException'; | ||
| import DOMExceptionNameEnum from '../../exception/DOMExceptionNameEnum'; | ||
| import ResourceFetch from '../../fetch/ResourceFetch'; | ||
| import HTMLScriptElement from './HTMLScriptElement'; | ||
|
|
||
| /** | ||
| * Helper class for getting the URL relative to a Location object. | ||
| */ | ||
| export default class HTMLScriptElementUtility { | ||
| /** | ||
| * Returns a URL relative to the given Location object. | ||
| * | ||
| * @param options Options. | ||
| * @param options.element Element. | ||
| * @param element | ||
| */ | ||
| public static async loadExternalScript(element: HTMLScriptElement): Promise<void> { | ||
| const src = element.getAttribute('src'); | ||
| const async = element.getAttribute('async') !== null; | ||
|
|
||
| if ( | ||
| element.ownerDocument.defaultView.happyDOM.settings.disableJavaScriptFileLoading || | ||
| element.ownerDocument.defaultView.happyDOM.settings.disableJavaScriptEvaluation | ||
| ) { | ||
| this.onError( | ||
| element, | ||
| new DOMException( | ||
| `Failed to load external script "${src}". JavaScript file loading is disabled.`, | ||
| DOMExceptionNameEnum.notSupportedError | ||
| ) | ||
| ); | ||
| return; | ||
| } | ||
|
|
||
| if (async) { | ||
| (<Document>element.ownerDocument)._readyStateManager.startTask(); | ||
|
|
||
| let code = null; | ||
|
|
||
| try { | ||
| code = await ResourceFetch.fetch(element.ownerDocument, src); | ||
| } catch (error) { | ||
| this.onError(element, error); | ||
| return; | ||
| } | ||
|
|
||
| element.ownerDocument.defaultView.eval(code); | ||
| element.dispatchEvent(new Event('load')); | ||
| (<Document>element.ownerDocument)._readyStateManager.endTask(); | ||
| } else { | ||
| let code = null; | ||
|
|
||
| try { | ||
| code = ResourceFetch.fetchSync(element.ownerDocument, src); | ||
| } catch (error) { | ||
| this.onError(element, error); | ||
| return; | ||
| } | ||
|
|
||
| element.ownerDocument.defaultView.eval(code); | ||
| element.dispatchEvent(new Event('load')); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Triggered when an error occurs. | ||
| * | ||
| * @param element Element. | ||
| * @param error Error. | ||
| */ | ||
| private static onError(element: HTMLScriptElement, error: Error): void { | ||
| element.dispatchEvent( | ||
| new ErrorEvent('error', { | ||
| message: error.message, | ||
| error | ||
| }) | ||
| ); | ||
| element.ownerDocument.defaultView.dispatchEvent( | ||
| new ErrorEvent('error', { | ||
| message: error.message, | ||
| error | ||
| }) | ||
| ); | ||
| if ( | ||
| !element['_listeners']['error'] && | ||
| !element.ownerDocument.defaultView['_listeners']['error'] | ||
| ) { | ||
| element.ownerDocument.defaultView.console.error(error); | ||
| } | ||
| } | ||
| } |
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