webext-active-tab/distribution/utils.js

WebExtension module: Track `activeTab` permission; automatically inject content scripts

import { queryAdditionalPermissions } from 'webext-permissions';
import { patternToRegex } from 'webext-patterns';
export function isContentScriptStaticallyRegistered(url) {
    return Boolean(chrome.runtime
        .getManifest()
        .content_scripts
        ?.flatMap(script => script.matches)
        .some(pattern => patternToRegex(pattern).test(url)));
}
export async function isContentScriptDynamicallyRegistered(url) {
    // Injected by `webext-active-tab`
    const { origins } = await queryAdditionalPermissions({
        strictOrigins: false,
    });
    // Do not replace the 2 calls above with `permissions.getAll` because it might also include hosts that are permitted by the manifest but have no content script registered
    return patternToRegex(...origins).test(url);
}
/**
Checks whether a URL will have the content scripts automatically injected.
It returns a promise that resolves with string indicating the type of injection ('static' or 'dynamic') or `false` if it won't be injected on the specified URL.
*/
export async function isContentScriptRegistered(url) {
    if (isContentScriptStaticallyRegistered(url)) {
        return 'static';
    }
    if (await isContentScriptDynamicallyRegistered(url)) {
        return 'dynamic';
    }
    return false;
}