happy-dom-without-node/lib/browser/utilities/BrowserFrameValidator.js

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

import BrowserNavigationCrossOriginPolicyEnum from '../enums/BrowserNavigationCrossOriginPolicyEnum.js';
import DetachedBrowserFrame from '../detached-browser/DetachedBrowserFrame.js';
import * as PropertySymbol from '../../PropertySymbol.js';
/**
 * Browser frame validator.
 */
export default class BrowserFrameValidator {
    /**
     * Returns true if the frame navigation complies with the cross origin policy.
     *
     * @param frame Frame.
     * @param toURL URL.
     * @returns True if the frame navigation complies with the cross origin policy.
     */
    static validateCrossOriginPolicy(frame, toURL) {
        const settings = frame.page.context.browser.settings;
        let fromURL = frame.page.mainFrame.window.location;
        if (frame[PropertySymbol.openerFrame]) {
            fromURL = frame[PropertySymbol.openerFrame].window.location;
        }
        else if (frame.parentFrame) {
            fromURL = frame.parentFrame.window.location;
        }
        if (settings.navigation.crossOriginPolicy === BrowserNavigationCrossOriginPolicyEnum.sameOrigin &&
            fromURL.protocol !== 'about:' &&
            toURL.protocol !== 'about:' &&
            toURL.protocol !== 'javascript:' &&
            fromURL.origin !== toURL.origin) {
            return false;
        }
        if (settings.navigation.crossOriginPolicy ===
            BrowserNavigationCrossOriginPolicyEnum.strictOrigin &&
            fromURL.protocol === 'https:' &&
            toURL.protocol === 'http:') {
            return false;
        }
        return true;
    }
    /**
     * Returns true if navigation is allowed for the frame.
     *
     * @param frame Frame.
     * @returns True if navigation is allowed for the frame.
     */
    static validateFrameNavigation(frame) {
        const settings = frame.page.context.browser.settings;
        // When using the Window instance directly and not via the Browser API we should not navigate the browser frame.
        if (frame instanceof DetachedBrowserFrame &&
            frame.page.context === frame.page.context.browser.defaultContext &&
            frame.page.context.pages[0] === frame.page &&
            frame.page.mainFrame === frame) {
            return false;
        }
        if (settings.navigation.disableMainFrameNavigation && frame.page.mainFrame === frame) {
            return false;
        }
        if (settings.navigation.disableChildFrameNavigation && frame.page.mainFrame !== frame) {
            return false;
        }
        if (settings.navigation.disableChildPageNavigation && !!frame[PropertySymbol.openerFrame]) {
            return false;
        }
        return true;
    }
}
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